John Deere Lawn Mower GM2109 User Manual

O P E R A T O R ’ S M A N U A L

GROOMING MOWERS

GM2190

GM2109

Manual 5BP971379B

Date 10/10/2010

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INDEX

1 - GENERAL INFORMATION

1.01 - General

1.02 - Warranty Information

1.03 - Model and Serial Number ID

2 - SAFETY PRECAUTIONS

2.01 - Preparation

2.02 - Starting and Stopping

2.03 - Messages and Signs

3 - OPERATION

3.01 - Operational Safety

3.02 - Set Up

3.03 - Cutting Height Adjustment

3.04 - Pre-Operational Check

3.05 - Attaching to the Tractor

3.06 - Start Up

3.07 - Working Speed

3.08 - Operating Techniques

3.09 - Uneven Terrain

3.10 - Removing Mower from the Tractor

3.11 - Quick Hitch Adapter Assembly and Operation

4 - MAINTENANCE

4.01 - Maintenance Safety

4.02 - Service

4.03 - Blade Maintenance

4.04 - Belt Tension

4.05 - Belt Replacement

4.06 - Driveline

4.07 - Transport

4.08 - Storage

5 - REPAIR PROCEDURES

5.01 - Gearbox

5.02 - Blade Spindle

5.03 - Suggested Spare Parts

6 - TROUBLESHOOTING

7 - PRE-DELIVERY CHECKLIST

PARTS MANUAL

INDEX

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1 - GENERAL INFORMATION

Thank you and congratulations for having chosen our implement. Your new grooming

mower is a technologically advanced machine constructed of high quality, sturdy

components that will fulfill your working expectations. Read this manual carefully. It will

instruct you on how to operate and service your mower safely and correctly. Failure to

do so could result in personal injury and/or in equipment damage.

1.01 - General

The implement described in this manual is to be used with tractors with PTO at 540 rpm

and clockwise rotation.

CAUTION: Always ensure that the coupling of the implement with the tractor is

done at the same PTO speed and direction of rotation. Do not operate this

implement at a PTO speed or direction of rotation other than that shown on the

implement. Serious damage can occur to the machine and/or the operator.

CAUTION: Unless otherwise specified, all hardware is metric. Use only metric

tools on metric hardware. Other tools that do not fit properly can slip and cause

injury.

CAUTION: Right hand and left hand sides of the implement are determined by

facing in the direction the implement will travel when going forward (see fig. 2).

1.02 - Warranty Information

Warranty coverage is provided by John Deere according to the terms of the

Agricultural/Commercial & Consumer Equipment Warranty Statement. Carefully read

the warranty statement on the back of your original purchase order for details on

coverage and limitations of this warranty.

Your Authorized Company Dealer has genuine parts in stock. Only these approved

replacement parts should be used.

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1.03 - Model and Serial Number ID

Attached to the frame is an ID plate showing the model and the serial number. Record

your implement model and serial number in the space provided below. Your dealer

needs this information to give you prompt, efficient service when you order parts.

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2 - SAFETY PRECAUTIONS

Safety is the primary concern in the design and manufacture of our products.

Unfortunately our efforts to provide safe equipment can be wiped out by a single

careless act of an operator.

In addition to the design and configuration of equipment, hazard control and accident

prevention are dependent upon the awareness, concern, prudence and proper training

of personnel involved in the operation, transport, maintenance and storage of

equipment. It is the operator’s responsibility to read and understand all safety and

operating instructions in the manual and to follow these.

Allow only properly trained personnel to operate the mower. Working with unfamiliar

equipment can lead to careless injuries. Read this manual, and the manual for your

tractor, before assembly or operation, to acquaint yourself with the machines. It is the

mower owner’s responsibility, if this machine is used by any person other than yourself,

is loaned or rented, to make certain that the operator, prior to operating, reads and

understands the operator’s manuals and is instructed in safe and proper use.

2.01 - Preparation

1. Before operating equipment read and understand the operator’s manual and the

safety signs (see fig. 2).

2. Thoroughly inspect the implement before initial operation to assure that all

packaging materials, i.e. wires, bands, and tape have been removed.

3. Personal protection equipment including hard hat, safety glasses, safety shoes, and

gloves are recommended during assembly, installation, operation, adjustment,

maintaining and/or repairing the implement.

4. Operate the mower only with a tractor equipped with an approved

Roll-Over-Protective-System (ROPS). Always wear your seat belt. Serious injury or

even death could result from falling off the tractor.

5. Clear area to be cut of stones, branches or other debris that might be thrown,

causing injury or damage.

6. Operate only in daylight or good artificial light.

7. Ensure mower is properly mounted, adjusted and in good operating condition.

8. Ensure that all safety shielding and safety signs are properly installed and in good

condition.

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2.02 - Starting and Stopping

1. Be sure that no one is near the machine prior to engaging or while the machine is

working.

2. Be sure the tractor is in “Neutral” before starting engine.

3. Mower operating power is supplied from tractor PTO. Refer to your tractor manual

for PTO engagement and disengagement instructions. Always operate PTO at 540

rpm. Know how to stop the tractor and mower quickly in case of an emergency.

4. When engaging PTO, the engine rpm should always be low. Once engaged and

ready to start cutting, raise PTO speed to 540 rpm and maintain throughout cutting

operation.

5. Check the tractor master shield over the PTO stub shaft. Make sure it is in good

condition and fastened securely to the tractor. Purchase a new shield if old shield is

damaged or missing.

6. After striking an obstacle, disengage the PTO, shut the tractor down and thoroughly

inspect for damage before restarting.

7. Never engage the PTO until the mower is in the down position and resting on the

ground. Never raise the mower until all blades have come to a complete stop.

8. To park the vehicle safely, stop vehicle on a level surface (not on a slope),

disengage PTO, engage the parking brake, stop the engine, remove the key, and

wait for engine and all moving parts to stop before leaving the operator’s seat.

9. Stay clear of rotating drivelines. Entanglement in rotating driveline can cause serious

injury or death. Wear close fitting clothing. Stop the engine and be sure PTO

driveline is stopped before getting near it.

2.03 - Messages and Signs

1. Read and adhere to all safety and operating decals on this machine (see fig. 2).

2. Before dismounting tractor: Allow moving parts to stop, stop engine, set brake and

remove the key of unattended equipment.

3. Keep away from rotating blades and driveline.

4. Keep guards and shields in place and in good condition.

5. Do not mow with bystanders in area.

6. Allow no riders on tractor or mower.

7. Allow moving parts to stop before repair.

8. Securely support mower before working underneath.

Additional warning and operating decals are available at no extra charge. Please specify

model and serial number when ordering.

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Fig. 2 - Safety decals - implement; replace immediately if damaged.

right side

left side

Red reflective decal

Yellow reflective decal

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Safety decals - driveline; replace immediately if damaged.

placed on outer shield

placed on outer tube

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3 - OPERATION

You have purchased a three spindle mower designed especially for the mowing of

grassy areas where a highly professional cut is required without wasting time.

This mower is perfect for the maintenance of parks, private lawns, industrial parks,

airports, hospital grounds, schools, highways, golf courses, sport complexes, etc. The

GM21 series, for tractors up to 70 HP, come in working widths of 90” and 110”. The

mower can be either tractor front or rear mounted. On your mower, the tractor PTO

transmits its power through a driveline to a speed multiplier gearbox. A pulley is

attached to the pinion gear shaft of the gearbox which, via high resistance belts,

transmits power to pulleys coupled to the three individual spindle shafts. Blades are

secured to these shafts which turn at a high blade tip speed to cut the grass.

Our grooming mower comes equipped with 4 swivel wheels. Aside from regulating the

cutting height, the wheels are set in such a way as to allow the mower to follow the

contour of the terrain and give a precise, level cut even in undulating conditions.

3.01 - Operational Safety

CAUTION: Our mowers are designed considering safety as the most important

aspect and are the safest available in today’s market. Unfortunately, human

carelessness can override the safety features built into our machines. Injury

prevention and work safety, aside from the features on our mowers, are very

much due to the responsible use of the equipment. It must always be operated

prudently following with great care, the safety instructions laid out in this manual.

1. The use of this equipment is subject to certain hazards which cannot be prevented

by mechanical means or product design. All operators of this equipment must read

and understand this entire manual, paying particular attention to safety and

operating instructions, prior to using.

2. Do not operate the tractor and mower when you are tired, sick or when using

medication.

3. Keep all helpers and bystanders at least several feet from a rotary mower. Only

properly trained people should operate this machine.

4. When this machine is operated in populated areas where thrown objects could injure

persons or property, standard equipment safety chain shielding (which is designed

to reduce the possibility of thrown objects) must be installed.

5. The majority of accidents involve entanglements on the driveline, injury of

bystanders by objects thrown by the rotating blades, and operators being knocked

off the tractor by low hanging limbs and then being run over by the mower. Accidents

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are most likely to occur with machines that are loaned or rented to someone who

has not read the operator’s manual and is not familiar with a rotary mower.

6. Always stop the tractor, set brake, shut off the tractor engine, remove the ignition

key, lower implement to the ground and allow mower blades to come to a complete

stop before dismounting tractor. Never leave equipment unattended with the tractor

running.

7. Never place hands or feet under mower with tractor engine running or before you

are sure all motion has stopped. Stay clear of all moving parts.

8. Do not allow riders on the mower or tractor at any time. There is no safe place for

riders.

9. Do not operate unless all personnel, livestock and pets are several feet away to

prevent injury by thrown objects.

10.Before backing up, disengage the mower and look behind carefully.

11.Install and secure all guards and shields before starting or operating.

12.Keep hands, feet, hair and clothing away from moving parts.

13.This rotary mower is designed for use only on tractors with 540 rpm power take off.

14.Never operate tractor and mower under trees with low hanging limbs. Operators can

be knocked off the tractor and then run over by the rotating blades.

15.The rotating parts of this machine have been designed and tested for rugged use.

However, they could fail upon impact with heavy, solid objects such as steel guard

rails and concrete abutments. Such impact could cause the broken objects to be

thrown outward at very high velocities. To reduce the possibility of property damage,

serious injury, or even death, never allow the cutting blades to contact such

obstacles.

16.Frequently check mower blades. They should be sharp, free of nicks and cracks and

securely fastened.

17.Stop mower immediately upon striking an obstruction. Turn engine off, remove key,

inspect and repair any damage before resuming operation.

18.Stay alert for holes, rocks and roots in the terrain and other hidden hazards. Keep

away from drop-offs.

19.Use extreme care and maintain minimum ground speed when transporting on

hillside, over rough ground and when operating close to ditches or fences. Be careful

when turning sharp corners.

20.Reduce speed on slopes and sharp turns to minimize tipping or loss of control. Be

careful when changing directions on slopes. Do not start or stop suddenly on slopes.

Avoid operation on steep slopes.

21.When using a unit, a minimum 20% of tractor and equipment weight must be on

tractor front wheels. Without this weight, tractor could tip over, causing personal

injury or death. The weight may be attained with a front end loader, front wheel

weights, ballast in tires or front tractor weights. When attaining a minimum 20% of

tractor and equipment weight on the front wheels, you must not exceed the ROPS

weight certification. Weigh the tractor and equipment. Do not guess or estimate!

22.Inspect the entire machine periodically¹. Look for loose fasteners, worn or broken

parts, and leaky or loose fittings.

See Chapter 4 - Maintenance.

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23.Use only the driveline supplied with the mower. Do not use it if it is missing any

shield or safety protection.

24.Pass diagonally through sharp dips and avoid sharp drops to prevent “hanging up”

tractor and mower.

25.Avoid sudden starts and stops while traveling up or downhill.

26.Always cut down slopes; never across the face. Avoid operation on steep slopes.

Slow down on sharp turns and slopes to prevent tipping and/or loss of control.

3.02 - Set Up

Notice to dealer: Pre-delivery setup and service including lubrication is the

responsibility of the authorized dealer. It is up to him to assure that the machine is in

perfect condition and ready to be used. It is his responsibility to ensure that the

customer is aware of all safety aspects and operational procedures for the mower. He

must also fill out the Pre-Delivery Checklist²prior to delivering the mower.

Fig. 3

Front mounted mower.

Fig. 4

Rear mounted mower.

See Chapter 7 - Pre-Delivery Checklist.

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CAUTION: Stand clear of bands when cutting as they could be under sufficient

tension to cause them to fly loose. Take care in removing bands and wire, they

often have extremely sharp edges and cut very easily.

As mentioned above, all our grooming mowers may be either tractor front or rear

mounted. Changing our mowers from front mount to rear, or vice versa, can be easily

done at our authorized dealerships. This is accomplished by simply turning the three

point hitch and the gearbox 180 degrees (see fig. 3 & 4).

3.03 - Cutting Height Adjustment

WARNING: Keep hands and feet away from moving blades.

Be sure tractor engine is off, parking brake is locked, and key is removed before

making any adjustments.

Never rely on the tractor lift system. Install blocks or stands under the mower

deck to prevent it from falling.

Fig. 5

The cutting height is

adjusted by moving

the height adjustment

spacers on the wheel

yokes above or below

the wheel arm.

The cutting height is the distance from the blades to the ground. The cutting height is

adjusted by moving the spacers on the wheel yokes. Placing spacers between the

wheel arm and the wheel yoke raises the cutting height by the size of the spacer.

Removing the spacers lowers it by the same height (see fig. 5).

Be sure all wheel arms are adjusted equally. This is the only way to ensure a completely

uniform cut.

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IMPORTANT: Very low cutting heights should be avoided. Damaging shock loads

occur when the blades strike the ground repeatedly. This can cause damage to

the mower.

Cutting lower than 2” under most circumstances should be avoided.

The cutting height is adjustable from 1.3” to 5.3”.

The mower comes equipped with a front anti-scalping roller. The roller is particularly

helpful when cutting over uneven terrain.

3.04 - Pre-Operational Check

IMPORTANT: Check each of the following, carefully, prior to engaging the equipment:

1. The spindle bearings have been greased.

2. The belts for proper tension.

3. The oil in the gearbox.

4. The driveline cross and bearings have been greased.

5. No wrappings or foreign objects are around the blades, belts or driveline.

6. The blades are properly installed and the blade bolts properly torqued³.

7. All hardware is tight.

8. The tractor, to ensure correct direction of PTO and rpm speed.

9. All safety shields and guards are in place and tightly attached.

10.No people or animals are in the work area.

11.When working, make sure the tractor hitch is in the “float” position, in order to allow

the mower to follow the contour of the ground.

DANGER: Stay clear of rotating driveline. Entanglement in rotating driveline can

cause serious injury. Disengage PTO, engage parking brake or place

transmission in “Park”, shut off the tractor and remove the key before working

around hitch, attaching or detaching driveline, making adjustments, servicing or

cleaning the machine.

3.05 - Attaching to the Tractor

Unit may be used on tractors ranging from 30 to 70 HP equipped with a standard PTO

and category 1 three point hitch⁴. Never use this mower with tractors over 70 HP.

CAUTION: Check the tractor PTO rpm to ensure it is set at 540 and turns

clockwise.

See Table 1, page 30.

See Table 2, page 30.

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CAUTION: Always ensure that the tractor tire pressure is correct according to the

tractor operator’s manual.

DANGER: Failure to ensure a secure coupling of the implement to the tractor can

cause injury and damage to the implement or tractor.

To attach the mower to the tractor do the following:

1. Back the tractor up to the mower in order to slip the tractor hitch arms over the hitch

pins welded to the mower hitch arms. Turn off the tractor engine. Secure them in

place with the lynch pins.

2. Adjust the tractor sway blocks or chains to remove all side movement.

3. Attach the top link. Adjust tractor top link to allow the mower to follow the ground

contour and yet remain as level as possible when raised to transport position.

4. Install the shielded driveline to the tractor by first lining up the splines and

depressing the snap pin. Push the yoke onto the PTO shaft as far as it will go.

Release the pin and pull back slowly until the pin clicks in place. Repeat this

operation on the implement end.

5. Ensure that the driveline has at least 2” from bottoming out in its shortest working

position and has the minimum 6” overlap in its longest working position. Refer to

Section 4.06⁵of this manual, if it is determined that the driveline is too long and

needs to be shortened. Contact your local dealer if it is determined that the driveline

is too short for your tractor.

6. Attach the driveline chains to the tractor and to the mower to keep the driveline

protection from turning. The chains should not be too tight.

3.06 - Start Up

DANGER: The mower must always be lowered to the ground before starting

tractor engine or engaging PTO lever.

Lower mower to the ground with the tractor rock shaft control lever. With the engine

idling, slowly engage the PTO drive. Move the throttle lever until the PTO speed

indicated on the mower is obtained.

The mower is set for a PTO speed of 540 rpm.

Shift the transmission to a slow speed gear and start forward, increase the ground

speed by shifting upward until the desired speed is obtained. Do not mow in reverse

unless absolutely necessary and only after careful observation of the area behind the

mower.

See Section 4.06 - Driveline, for instructions on how to determine correct driveline length and

procedures for shortening the driveline.

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CAUTION: Do not operate this mower at a PTO speed or direction of rotation

other than that shown on the mower. Serious damage can occur to the machine

and/or the operator.

Before starting to mow, never forget that the operator is responsible for the following:

1. Safe and correct driving of the tractor and mower.

2. To learn precise safe operating procedures for both the tractor and the mower.

3. To ensure all maintenance and lubrication has been performed on the mower.

4. To have read and understood all safety aspects for the mower in the operator’s

manual.

5. To have read and understood all safety decals on the mower.

6. Checking the condition of the blades. Worn or damaged blades should be changed

before starting⁶.

7. Checking to ensure that the cutting edge is the leading edge of the blade⁷.

8. Checking that there is no wire, weed, grass or other material wrapped around

blades.

9. Checking to see if front weights need to be added to the tractor in order to maintain

balance.

10.Checking the tractor tires for the proper pressure in accordance with the tractor

operator’s manual.

11.Checking that the PTO shield, belt shields and all other shielding are on the

machine and securely in place.

12.Making sure the proper attire is worn. Avoiding loose fitting clothing which can

become entangled. Wearing sturdy, tough-soled work shoes and protective

equipment for eyes, hands, ears and head. Never operate tractor or implements in

bare feet, sandals or sneakers.

13.Checking area for stones, branches and other debris that might be thrown.

14.Ensuring proper lighting is available, sunlight or good artificial lighting.

3.07 - Working Speed

The mowing speed depends on ground conditions, tractor HP, mowing height, and

grass thickness. Only a test run will enable you to gauge the optimal working speed for

your conditions. Under most conditions a 3 to 8 mph ground speed is best. As a rule of

thumb, and if the conditions permit, grass dispersion is increased by higher ground

speeds.

In order to obtain the best cut possible, always keep the tractor rpm up to the speed

indicated on the mower. When increasing or decreasing mowing ground speed, always

use gear selection, not engine speed. This will maintain the constant maximum blade

speed necessary for a clean cut.

See Section 4.03 - Blade Maintenance.

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3.08 - Operating Techniques

All of the following factors are important in selecting the proper forward speed:

1. Height of grass.

2. Type of grass.

3. Density of grass.

4. Type of terrain.

5. Grass condition, wet or dry.

This mower has been designed to cut grass with heights from 4” to 8”. It is

recommended to avoid cutting grass taller than 10”. For the best results, try cutting the

grass at least once per week during growing season. Tall, dense grass should be cut at

low speed, while thin medium grass can be cut at a faster ground speed. For cleaner

cuts and efficient mowing, the blades must be kept sharp⁸.

Always operate PTO at 540 rpm. This is necessary to maintain proper blade speed and

obtain a clean cut.

Under certain conditions, tractor tires may roll some grass down and prevent it from

being cut at the same height as the surrounding area. If this occurs reduce the tractor

ground speed but maintain a 540 rpm engine speed. The lower ground speed will permit

the grass to at least partially rebound. Under some conditions grass will not rebound

enough to be cut evenly, resulting in an uneven appearance. In general, lower cutting

height gives a more even cut with less tendency to leave tire tracks. If cut is still not

satisfactory, cut the area twice.

Mow extremely tall grass twice. On the first pass use a high cutting height. On the

second pass position the mower at the desired height and, when practical, mow at a

right angle in travel to the first pass.

Plan your pattern to travel straight forward whenever possible. It is better to cut grass

more often, than too short. Short grass deteriorates rapidly in hot weather and invites

weed growth during growing season.

If at any time the mower should jam resulting in belt slippage of 2 or more seconds,

raise the mower and continue for 2-3 minutes. This will allow the pulleys to cool and

prolong belt life.

DANGER: The mower blades can throw objects hundreds of feet which could

result in personal or property damage.

Pick up all rocks and other debris before mowing.

Enter new areas carefully. Cut grass higher at first, allowing mower to clear

hidden objects.

CAUTION: For emergency reasons learn how to stop the tractor and mower

quickly. On the finishing mowers always disengage the PTO, lock parking brake,

See Sharpening Blades in Section 4.03 - Blade Maintenance.

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stop engine and allow the mower blades to come to a complete stop before

dismounting the tractor.

3.09 - Uneven Terrain

DANGER: Be careful of rollover when operating tractor and mower over uneven

ground.

The following precautions should always be observed when working on uneven terrain:

1. In extremely uneven terrain rear wheel weights, front tractor weights, and/or tire

ballast should be used to improve stability.

2. Observe the type of terrain and develop a safe working pattern.

3. Whenever traction or stability is doubtful, first test drive over the terrain with the PTO

disengaged.

4. Operate the implement up and down steep slopes, not across slopes, to prevent the

tractor from tipping. Avoid sudden stops and starts, and slow down before changing

directions on a slope.

5. Pass diagonally through sharp dips and avoid sharp drops to prevent hanging up the

tractor and implement.

6. Slow down on sharp turns and slopes to prevent tipping or loss of control.

7. Avoid tipping the mower while cutting.

8. Watch for holes, roots or other hidden objects. Do not use near the edge of a gully,

ditch or stream bank.

An anti-scalping roller is mounted on the deck for uneven ground contours. The

roller rides the nose of the mower over a mound to help keep the nose from

bulldozing or the blade from scalping the ground.

3.10 - Removing Mower from the Tractor

CAUTION: Disengage tractor PTO. Set parking brake. Stop engine and remove

key from ignition. Disconnect mower driveline from tractor PTO shaft. Collapse

driveline and store in appropriate place. Disconnect three point linkage and

carefully drive tractor away from mower.

3.11 - Quick Hitch Adapter Assembly and Operation

Using a Quick Hitch system: The GM21 series mowers can be used with a Quick

Hitch system, allowing for quick and easy hookup, by installing an optional adapter. This

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optional adapter has floating yokes that will allow the mower to follow the contour of the

ground.

WARNING: When using a Quick Hitch on a PTO driven implement always ensure

there is the proper driveline overlap prior to use. If there is not the minimum 6”

driveline overlap do not use and contact your nearest dealer to purchase a longer

driveline.

Fig. 6 - Quick Hitch Adapter assembly.

Quick Hitch Adapter assembly (see fig. 6):

1. Remove lower hitch arms from grooming mower’s linking plates.

2. Remove the M16x140 bolt on top of the three point hitch of the grooming mower.

3. Remove the M16x45 bolts that hold the top hitch supports to the linking plates of the

mower.

4. Install the floating yokes of Quick Hitch Adapter assembly to the linking plates of the

mower using the M16x65 hex bolts and the M16 stover nuts. Install the floating

yokes in the same hole that the hitch pins were mounted. NOTE: The floating

yokes need to be installed as shown on fig. 7.

5. For proper operation of the mower, ensure that the floating yokes are parallel to the

ground.

6. Install the floating top link to the top hitch arms using the M16x110 bolt and the M16

stover nut.

7. Install the A-frame support to the floating top link using the same M16x140 bolt that

was previously removed from the top of the three point hitch of the grooming mower

and the M16 stover nut.

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8. Install the A-frame support to the floating yokes using the M20x160 hex bolt and the

M20 stover nut.

9. Loosen the M16x45 bolts that secure the top hitch arms to the rear support plates of

the mower. Only loosen slightly. The arms must be able to move slightly up and

down.

10.Tighten all hardware, ensuring all bolts and nuts have enough play to allow quick

hitch adapter to move up and down.

Fig. 7 - Quick Hitch Adapter floating yoke installation.

GM2190 & GM2109

Quick Hitch Adapter operation:

After completing assembly of the adapter, the tractor lift arms should be raised and

locked in a position so the floating yokes are horizontal.

CAUTION: Improper setup of the Quick Hitch Adapter can result in equipment

damage. A replacement driveline must generally be installed to prevent injury or

equipment damage when using the Quick Hitch Adapter.

CAUTION: If the three point hitch of the tractor is set in the lowest position, the

driveline may bottom out against the Quick Hitch resulting in a bent driveline. If

the mower is lifted after the driveline has been bent, it may also damage the

gearbox, mounting plates, and other hardware.

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4 - MAINTENANCE

DANGER: Stop engine, lock parking brake and remove key before performing any

service or maintenance.

Never rely on the tractor lift system. Install blocks or stands under the mower

deck to prevent it from falling.

Always use personal protection devices, such as glasses or gloves when

performing maintenance.

Keep fingers out of slots to prevent injury.

4.01 - Maintenance Safety

1. Good maintenance is your responsibility.

2. Keep service area clean and dry. Be sure electrical outlets and tools are properly

grounded. Use adequate light for the job at hand.

3. Make sure there is plenty of ventilation. Never operate the engine of the towing

vehicle in a closed building. The exhaust fumes may cause asphyxiation.

4. Make no repair or adjustments with the tractor engine running. Before working on

the machine, disengage the PTO, shut off the engine, set the brakes, and remove

the ignition key.

5. Be certain all moving parts on attachment have come to a complete stop before

attempting to perform maintenance.

6. Never work under equipment unless it is blocked securely.

7. Always use personal protection devices such as eye, hand and hearing protectors,

when performing any service or maintenance.

8. Frequently check mower blades. They should be sharp, free of nicks and cracks and

securely fastened.

9. Periodically tighten all bolts, nuts and screws and check that all cotter pins are

properly installed to ensure unit is in a safe condition.

10.When completing a maintenance or service function, make sure all safety shields

and devices are installed before placing unit in service.

11.Do not attempt to mount a tire unless you have the proper equipment and

experience to do the job.

12.Inflating or servicing tires can be dangerous. Whenever possible, trained personnel

should be called to service and/or mount tires.

13.After servicing, be sure all tools, parts and service equipment are removed.

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14.Never replace hex bolts with less than grade five bolts unless otherwise specified,

i.e. shear bolts⁹.

15.Where replacement parts are necessary for periodic maintenance and servicing,

genuine replacement parts must be used to restore your equipment to original

specifications. The company will not claim responsibility for use of unapproved parts

and/or accessories and other damages as a result of their use.

16.Unauthorized modifications to the machine may impair the function and/or safety of

the machine and reduce its life. If equipment has been altered in any way from

original design, the manufacturer does not accept any liability for injury or warranty.

4.02 - Service

The accompanying illustrations show lubrication points. The chart gives the frequency of

lubrication in hours, based on normal operating conditions. Severe or unusual

conditions may require more frequent lubrication.

Use a good quality SAE multipurpose type grease for all locations shown. Be sure to

clean fittings thoroughly before using grease gun.

Use 90 wt. gear oil in gearbox.

Hourly:

1. Check the condition of mower blades for nicks or dull edges. Sharpen if necessary.

2. Replace bent or damaged blades¹⁰.

3. Also check blades for damage after hitting an obstruction.

4. Clean foreign material from mower deck and belt area.

Fig. 8 - Lubrication of wheel yokes.

Every 8 hours:

1. Lubricate the driveline and the wheel yokes: Apply two or three shots of grease

to the driveline cross and bearings and the telescoping shafts; apply the same

amount to the wheel yokes grease fittings (see fig. 8). See the driveline

Refer to Table 1 - Torque Specifications, page 30.

See Section 4.03 - Blade Maintenance.

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manufacturer operator’s manual for further information on the driveline. (Note: On

older models you may need to lubricate the wheel bearings, check wheels to see if

there is a grease fitting, if so apply two or three shots of grease every 8 hours).

2. Gearbox oil level: Check gearbox oil level, it should be between /₂and /₃full. If

needed add either SAE 90 wt. or SAE 140 wt. gear oil.

Every 25 hours: Check hardware tightness; mower vibrations can loosen bolts.

Check tightness of the hardware periodically, using Table 1 as a guide¹¹.

Every 50 hours:

1. Lubricate the three spindles with two or three shots of multipurpose grease (see fig.

9). The top grease fittings are easily accessible from the top of the deck by simply

removing the plastic dust guards.

2. Check belt tension¹².

Fig. 9

Lubrication of the spindle shafts easily

accessible from the top of the deck.

4.03 - Blade Maintenance

WARNING: To avoid possible injury always wear proper eye and hand protection

when servicing mower blade.

In order for the mower to work properly, and to always obtain a precision cut with lower

HP requirements thus keeping cost down, proper blade maintenance is important.

Blades must be kept sharp, at their original length and corners maintained. A blade

must be replaced if, due to wear or damage, its original shape has been distorted.

See Table 1, Torque Specifications, page 30.

See Section 4.04 - Belt Tension.

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Installing or removing blades

If the mower blades need to be installed, do the following:

1. The blades rotate clockwise viewing the mower, when lifted, from the rear. The

blades must be mounted with the cutting edge in the direction of rotation and the lift

wing edge towards the bottom of the deck (see fig. 10).

2. Insert the blade bolt through the blade and then through the spindle, taking care to

assemble it as described above (see fig. 10). Screw on the lock nut.

3. Tighten the lock nut to 105 lb.ft.

4. To remove the blades, reverse the procedure.

Fig. 10 - Mower's spindle assembly

Ground

1. grease fitting

2. nut

6. rotor

7. blade

3. pulley

8. blade bolt

9. lift wing

4. rotor support

5. nut

10. shaft welded to the rotor

WARNING: Do not substitute blades or any bolt for the blade retaining bolt.

Company blades and blade retaining bolts are specially made for this application.

Using non original parts can effect the quality of cut and may also cause damage

to the mower.

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DANGER: Proper torque must be used when tightening the blade retaining bolt. If

these safety precautions are not followed, the blade could come off during

operation and be thrown hundreds of feet from the mower.

Sharpening blades

Blade sharpening is extremely important in order to get the best cutting results. Sharp

blades permit a high quality cut and also reduce HP thus lowering cost.

To sharpen blades, first remove them following the above instructions.

Place the blade in a vise and sharpen them by using a hand file or grinder. Do not

sharpen the blades to a sharp cutting edge. The cutting edge should be between ¹/₆₄”

to /₃₂” to prevent excessive pitting and dulling of the blades. Sharpen both ends of the

blade equally for balance and always maintain corners. Always keep all three blades

sharpened equally in order to maintain balance.

CAUTION: Unbalanced or warped blades can cause damage to the mower and/or

personal injury. Replace damaged blades before operating the mower. Sharpen

both ends of the mower blades equally or until the blade is balanced.

4.04 - Belt Tension

Belt tension control

Check the belt tension (see fig. 11) by applying a force of 12-15 lb. pushing against the

belt halfway between the pulleys. The belt deflection should be between ⁵/₁₆”-³/₈”.

Fig. 11

The belt deflection should be

between 5/16"-3/8".

Belt tension adjustment

To adjust the tension do the following (see fig. 12):

1. Remove belt shields. Clean foreign material from the mower deck and belt area.

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2. Loosen the four nuts holding the gearbox support plate to the central plate.

3. Loosen the two blocking nuts on the adjustment bolt.

4. Turn the adjustment bolt clockwise until the proper belt tension is reached. This will

draw the gearbox support plate to the rear, thus tightening the belts.

5. Tighten the two blocking nuts on the adjustment bolt.

6. Retighten the four nuts holding the gearbox support to the central plate.

7. Reinstall the belt shields.

Fig. 12

1. adjustment bolt

2. gearbox support plate

3. gearbox

4.05 - Belt Replacement

If the belts have been stretched or damaged to the point where the proper tension

cannot be obtained they must be changed.

Fig. 13

1. drive pulley

2. central pulley

3. lateral pulleys

4. right belt

5. left belt

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To replace belts do the following:

1. Remove belt shields. Clean foreign material from the mower deck and belt area.

2. Loosen the four nuts holding the gearbox support plate to the central plate.

3. Loosen the two blocking nuts on the adjustment bolt.

4. Turn the adjustment bolt counter clockwise, pushing the gearbox support plate

forward until all tension is released (see fig. 12).

5. Loosen rear nuts holding central plate (do not remove them).

6. Remove front nuts holding central plate.

7. Lift the front of the central plate and remove old belts.

8. Replace new belts (see fig. 13). Loop the first belt over the left spindle and around

the lower groove of the center spindle pulley and the lower groove of the gearbox

drive pulley. The second belt connects the upper grooves of the center spindle

pulley and the gearbox drive pulley with the right spindle pulley.

9. Lower central plate.

10.Replace front nuts. Tighten front and rear nuts holding down central plate.

11.Turn the adjustment bolt clockwise until the proper belt tension is reached. This will

draw the gearbox support plate to the rear, thus tightening the belts.

12.Tighten the two blocking nuts on the adjustment bolt.

13.Retighten the four nuts holding the gearbox support to the central plate and replace

the belt shields.

4.06 - Driveline

DANGER: Only use the original driveline supplied with this mower and always

with the safety shielding. Carefully read and file away the driveline operator’s

manual supplied by the manufacturer. The following does not substitute the

information found in the driveline manual.

IMPORTANT: Always check driveline length during initial setup and when connecting to

a different tractor.

In the collapsed position the driveline should be approximately 2” from bottoming out to

prevent possible damage to the tractor or implement. When the driveline is in the

maximum extended position, the ideal minimum overlap of the two halves should be

approximately 6” (see fig. 14).

If determined that the driveline is too long, follow these procedures to adjust the length:

1. Separate the two driveline halves. Connect one half to the tractor PTO and the other

half to the mower.

2. Raise and lower the mower with the 3 point hitch to find the position where the

driveline is shortest. Hold the half shafts side by side and mark the desired length on

the outer female tube guard leaving a 1¹/₂” gap between the end of the guard tube

and bell guard.

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3. Cut off both guard tubes the same amount as marked in step 2.

4. Shorten both drive tubes the same amount as guard tubes.

5. De-burr and clean filings from drive tubes and apply grease to outside of inner

telescoping tube.

6. Reassemble the driveline halves and connect to tractor and mower. Raise and lower

mower again to be sure driveline does not bottom out in its shortest position and has

a minimum overlap of 6” in the longest position.

7. Install both driveline safety chains. One should be hooked in a hole on the outer

driveline yoke shield and to the tractor to restrict outer shield rotation. The second

one should be hooked in a hole on the inner driveline yoke shield and to the

implement to restrict inner shield rotation.

If determined that the driveline is too short for your tractor, contact your local dealer.

Fig. 14

min. 6"

MAX.

min. 2"

MIN.

CAUTION: Always work with the driveline as straight as possible. This will

prolong its life and that of its components. It is advised not to work at an angle

greater than 15 degrees.

4.07 - Transport

Before raising the mower for transport, the tractor top link must be adjusted so when

lifted, the rear of the machine is higher than the front (the mower’s nose is tilted

downward). To do this, shorten the tractor top link until the top hitch plate is locked

forward and no longer able to pivot. This will keep the mower locked in position and

minimize the shaking and bouncing during transport which can damage the hitch or

frame.

When raising the mower be sure the PTO driveline does not hit either the mower or the

tractor. During transport the mower should not be lifted over 14”-16” from the ground.

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CAUTION: Make sure PTO is disengaged and blades have stopped turning before

raising mower to full transport position.

Do not tow tractor and mower behind other vehicles. Use a properly equipped

trailer with heavy tie-downs for towing operations.

Before transporting:

1. Disengage PTO.

2. Shorten tractor top link until top hitch plate is locked.

3. Raise machine and lock rockshaft control lever.

4. Always select a safe ground speed that is appropriate for the terrain.

5. Beware of traffic on public roads. Install a SMV (Slow Moving Vehicle) sign when

traveling on roads or streets.

6. Reduce ground speed when turning and take care that the mower does not strike

obstacles such as trees, fences or buildings.

4.08 - Storage

CAUTION: Following operation, or when unhooking, stop the tractor, set the

brakes, disengage the PTO, shut off the engine and remove the ignition key. Store

the unit in an area away from human activity. Do not permit children to play on or

around the stored unit. Make sure all parked machines are on a hard, level

surface and engage all safety devices.

After seasonal use it is important to perform the following for prolonged storage:

1. Wash the mower carefully.

2. Inspect the mower and replace worn or damaged parts.

3. Tighten all hardware.

4. Grease all areas indicated under Maintenance.

5. Loosen the belts if the mower is to be stored for an extended length of time.

6. Cover the mower from the elements in order to have it in perfect condition for the

start of the next season.

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TABLE 1 - TORQUE SPECIFICATIONS

Metric (ISO)

treaded

Inch (SAE)

treaded

bolts head

marking

bolts head

marking

Class 5.8 Class 8.8 Class 10.9

Grade 2

Grade 5

Grade 8

Bolt

Bolt Thread

Thread

size

N.m

ft-lb

N.m

ft-lb

N.m

ft-lb

size

inch

tpi

N.m

ft-lb

N.m

ft-lb

N.m

ft-lb

0.8

1.25

1.5

1.25

1.75

1.5

1.25

1.5

2.5

1.5

2.5

1.5

2.5

1.5

123

128

133

195

209

302

320

421

443

465

592

646

807

873

1017

1095

1/4”

5/16”

3/8”

102

115

147

164

203

230

361

403

582

642

873

955

1077

1208

106

120

154

171

212

240

376

420

606

668

909

995

M10

M12

M14

M16

M18

M20

M22

M24

M27

M30

M36

3/8”

7/16”

1/2”

106

144

163

208

232

287

325

509

569

822

906

1232

1348

1/2”

133

142

206

218

295

311

327

415

454

567

613

714

769

1050

1119

144 9/16”

154 9/16”

109

121

150

170

266

297

430

473

644

704

794

891

105

152

161

218

229

241

306

335

418

452

526

567

774

825

106

132

149

233

261

226

249

339

371

480

539

677

750

888

1011

1179

1326

131

141

181

196

203

256

288

344

381

444

488

656

719

906

1000

223

236

310

327

343

437

476

595

5/8”

3/4”

7/8”

1”

104

133

145

150

189

212

254

281

327

360

484

530

668

738

110

172

192

167

184

250

273

354

397

500

553

655

746

869

978

1”

644 1-1/8”

750 1-1/8”

808 1-1/4”

1746 1288

1958 1445

3.5

1519 1120 2463 1817

1682 1241 2728 2012

1992 1469 3230 2382

2268 1673 3677 2712

2643 1949 4286 3161

2974 2194 4823 3557

1496 1103 1-1/4”

1594 1176 1-3/8”

1420 1047 2033 1499 1-3/8”

1600 1180 2250 1659 1-1/2”

1534 1131 2482 1830 3535 2607 1-1/2”

When using lock washers with nuts, increase torque values by 5%.

TABLE 2 - GM21 GROOMING MOWERS - TECHNICAL FEATURES

Series GM21, Rear discharge, for tractors up to 70 HP, PTO 540 rpm, 3 point hitch cat. 1

Model

HP Working Overall Weight

Rotor

Blades

# of

Cutting

# of

belts &

type

# of wheels &

size

Driveline

1 ³/₈”

width

lb.

rpm/min tip speed blades height

ft/min

1137 AT

1237 HT

4 - 13”x6.5” air

4 - 12”x4” hard

GM2190 30-70

90”

92”

1750

1562

14106

14998

1.3”-5.3” 2 CX

ASAE 4^thcat

1290 AT

1390 HT

4 - 13”x6.5” air

4 - 12”x4” hard

GM2109 30-70 110”

112”

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5 - REPAIR PROCEDURES

CAUTION: All repair procedures must be done by authorized dealerships. It is not

recommended that untrained individuals perform any repair work. The following

operations are detailed for qualified personnel only.

5.01 - Gearbox

To remove the gearbox do the following:

1. Remove the belt guards.

2. Loosen the nuts holding the gearbox support plate (see fig. 12).

3. Loosen the nut and turn the bolt in order to push the gearbox forward and release

tension on the belts (see fig. 12).

4. Remove the belts¹³.

5. Remove the nuts holding the central plate to the frame.

6. Remove the nut holding the pulley to the gearbox pinion shaft. Remove the pulley.

7. Unbolt the nuts holding the gearbox support plate to the central plate (see fig. 12).

Remove gearbox and gearbox support plate.

8. Unbolt the nuts holding the gearbox to the gearbox support plate. Remove the

gearbox.

If it is necessary to replace any part on the inside of the gearbox, it is important to

replace oil seals or gaskets to ensure a tight fit when reassembling.

To replace the gearbox, follow the above instructions in reverse order.

5.02 - Blade Spindle

To remove a blade spindle do the following:

1. Remove the belts¹⁴.

2. Remove the safety nut holding the pulley to the spindle shaft. Remove the pulley.

3. Remove the bolts holding the spindle assembly to the deck and remove the

assembly.

4. Press out the spindle shaft.

5. If necessary remove and replace the bearings from the rotor using presses or

extractors. Take care not to damage the oil seals. Replace them if necessary.

See Section 4.05 - Belt Replacement.

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Fig. 15

1. grease fitting

2. safety nut

3. pulley

4. spacer

5. oil seal

6. bearing

7. nut

8. rotor support

9. bolt

10. bearing

11. oil seal

12. spindle shaft & rotor

15. nut

13. key

17. bolt

16. blade

19. block washer

14. nut

18. blade bolt

To reassemble the blade spindle, do the following:

1. Clean the spindle housing support. Remove shavings and/or burrs.

2. Rub oil on the mounting surfaces. Press the bearing races into the rotor support

(see fig. 15).

3. Apply a layer of grease to the inner ring of the bearing. Pack the bearings with

grease.

4. Carefully lubricate the oil seal and assemble it on the spindle shaft with the lip turned

down toward the blade mounting plate.

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5. Place the bearing over the spindle shaft.

6. Assemble the rotor support over the spindle shaft, taking care not to damage the oil

seal.

7. Place the upper bearing, the adjustment spacer and the oil seal (assemble it with the

lip towards the bearing) over the spindle shaft. Be sure all parts are lubricated prior

to assembly. Take care not to damage the seal.

8. Bolt the spindle assembly to the deck.

9. Place the key in the keyway and mount the pulley onto the shaft.

10.Tighten the locking nut while turning the spindle. Tighten the spindle until resistance

is felt. Tighten until there is no up and down play in the pulley.

11.Back off ¹/₁₂of a turn so the spindle turns without resistance.

12.With rubber mallet, tap on the top of the spindle to set the bearings.

13.Check spindle to ensure that it is still turning freely left and right.

14.Tighten the nut and check again to ensure that the spindle is still turning freely.

15.Check to ensure that there is no excessive play in the bearing.

16.If play is present, loosen the nut and tap on spindle again and tighten up and check

movement again.

17.If spindle appears to be too tight, loosen the nut about ¹/₁₂of a turn and check again.

18.Be sure the grease fitting is in the shaft (see fig. 15).

19.Replace the belts and the belt covers.

20.Grease the spindle assembly.

5.03 - Suggested Spare Parts

It is suggested that the following spare parts be kept on hand for the mower at all times

to prevent a minor problem from delaying work.

Description

Blades

Blade bolts

Belts

Quantity

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6 - TROUBLESHOOTING

WARNING: Be sure tractor engine is off, parking brake is locked, and key is

removed before making any adjustments.

PROBLEM

POSSIBLE CAUSE

SOLUTION

Shift to lower gear.

Sharpen blades.

Uneven cutting.

Ground speed too fast.

Blades need sharpening.

Caster wheels uneven.

Adjust wheel position.

Blades turning but not Direction of blades is wrong. Blade should turn clockwise

cutting.

when you face deck bottom. See

Blades Maintenance section.

Belt slippage.

Lack of tension.

Tighten belt.

Object clogging mower.

Debris in pulleys.

Remove object.

Clean pulleys.

Mower vibrates.

Belt squeal.

Object wrapped around blade. Remove object.

Belts damaged.

Replace belts.

Belts slipping.

Tighten belts.

Grass build up at exit. Wet grass.

Grass too high.

Allow grass to dry.

Raise mower, shift to lower

gear, make two passes over

grass. Mow grass high 1st pass,

2nd pass cut to desired height.

Increase tractor rpm, check

engine and PTO speeds.

Tractor rpm too slow.

Belts are tight when Wrong belt size.

Check belt size.

installing.

Streaking conditions Too wet to mow.

in swath. Blades cannot cut grass

Installed belts incorrectly.

See Replacing Belts section.

Allow grass to dry.

Maintain engine speed and shift

to lower gear.

Sharpen blade. See Blades

Maintenance section.

pressed down by wheels.

Dull blades.

Blades worn down, preventing Change blades.

overlap.

Cut grass windrows. Ground speed too low.

Tractor rpm too slow.

Increase ground speed.

Increase tractor rpm, check

engine and PTO speeds.

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7 - PRE-DELIVERY CHECKLIST

To the dealer: Inspect the machine thoroughly after assembly to assure it is

functioning properly before delivering it to the customer. The following checklist

is a reminder of points to cover. Check off each item as it is found satisfactory or

after proper adjustment is made.

 Gearbox oil level.

 Guards and shield properly fastened.

 Lubrication of grease fittings.

 All hardware properly tightened.

 All decals properly located and readable (see fig. 2).

 Blades properly installed, blade bolts and nuts tightened.

 Overall condition (touch up scratches, clean and polish).

 Test run, check for excessive vibration or overheating of bearings.

 Operator’s Manual.

Review the Operator’s Manual with the customer. Explain the following:

 Warranty.

 Safe operation and service.

 Correct machine installation and operation.

 Daily and periodic lubrication, maintenance and inspections.

 Troubleshooting.

 Operational procedures and storage.

 Parts and service.

 Fill out the Pre-Delivery Checklist and on-line Warranty Registration form.

 Give customer the Operator’s Manual and encourage the customer to read the

manual carefully.

IMPORTANT: The dealer must complete the Warranty Registration, located on the

Frontier website. Warranty claims will be denied if the Warranty Registration has

not been completed.

Model Number: __________

Delivery Date: __________

PRE-DELIVERY CHECKLIST

Serial Number: __________

Dealer’s Signature: __________

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P A R T S M A N U A L

GROOMING MOWERS

GM2190

GM2109

Note: Serial #’s with the XF prefix are subsequent to serial numbers with the BC prefix. For example: A

reference to “serial # BC…739197 & above” will also include all serial numbers with an XF prefix.

Parts Manual 10/2010

C70-090, 110 Ver. F

Frontier C70-090, 110 (US)

Printed on October 12, 2010

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FRAME

OPERATOR’S MANUAL

GM2190, GM2109

P^ARTSMANUAL

FRONTIER

10/2010

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GROOMING MOWERS

FRAME

OPERATOR’S MANUAL

GM2190, GM2109

Ref.

Part #

Description

Qty.

5BP0167002

5BP0267002

5BP0167052

5BP0167062

5BP0267062

5BP0033176

5BP0002034

5BP0006647

5BP0044187

5BP0067082

5BP0001106

5BP0094139

5BP0076106

5BP0500614

Frame 90”; GM2190

Frame 110”; GM2109

Central plate

Belt shield; GM2190

Belt shield; GM2109

Bolt HH M10-1.50x25 C8.8 Z F

Washer flat Ø10 W

Cap

Support plate, gearbox

Bolt SP M12-1.75x122 C8.8 P F

Nut HH M12-1.75 C6 Z MD

Nut ES M12-1.75 TN Z

Washer fender Ø12 Z

Gearbox, complete

5BP0001107A Breather cap

5BP0006691

5BP0003038

5BP0001077

5BP0006349

5BP0008568

5BP0067169

5BP0067170

5BP0067251

5BP0002365

5BP0005581

5BP0067256

5BP0006827

5BP0033218

5BP0038346

5BP0067275

5BP0067276

5BP0067277

5BP0067282

5BP0067285

5BP0044067

5BP0006834

5BP0001065

5BP0167291

5BP0267291

5BP0005524

5BP0030156

5BP0030157

5BP0067305

5BP0067371

5BP0044129

5BP0044130

5BP0008783

5BP0044131

5BP0051706

Gasket

Nut HH M12-1.75 C6 Z TK

Washer lock Ø12 Z

Bolt HH M10-1.50x20 C8.8 Z F

Washer flat Ø16 W

Belt CX 96; GM2190

Belt CX 106; GM2109

Linking plate

Bolt HH M16-2.00x50 C8.8 Z P

Nut PT M16-2.00 C6 Z TK

Lower hitch arm

Spacer

Bolt HH M16-2.00x55 C8.8 Z P

Hitch pin

Three point hitch

Top hitch arm; GM2190

Top hitch arm; GM2109

Three point hitch joint (straight, 2 holes)

Three point hitch joint (L shaped, 3 holes)¹⁵

Spacer, inner

Bolt HH M16-2.00x150 C8.8 Z P

Grease fitting M10-1.00

Wheel arm 90”; GM2190

Wheel arm 110”; GM2109

Washer flat Ø33 Z

Nut PT M10-1.50 C6 TK Z

Washer fender Ø10 Z

Wheel yoke for hard tire

Wheel yoke for 13” air tire

Spacer 1”

Spacer ½”

Cotter pin

Wheel hard tire, complete

Bearing 6205 2RS, hard tire (not shown)

Part # 5BP0067285 is interchangeable with part #5BP0067282 provided both “three point hitch joints” are

replaced.

P^ARTSMANUAL

FRONTIER

10/2010

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GROOMING MOWERS

FRAME

OPERATOR’S MANUAL

GM2190, GM2109

P^ARTSMANUAL

FRONTIER

10/2010

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GROOMING MOWERS

FRAME

OPERATOR’S MANUAL

GM2190, GM2109

Ref.

Part #

Description

Wheel 13” air tire, complete¹⁶

Qty.

5BP0067402

5BP0051706

5BP0044134

5BP0044138

5BP0067412

5BP0044133

5BP0067414

5BP0044135

5BP0023911

5BP0030358

5BP0005507

5BP0167333

5BP0267333

5BP0044156

5BP0044158

5BP0006558

5BP0009622

5BP0067354

5BP0067358

5BP0067363

5BP0067365

5BP0067311

5BP0067064

5BP0014106

5BP0015237

5BP0030064

5BP0015122

5BP0067286

5BP0046454

5BP0011328

5BP0067385

5BP0067388

5BP0067384

5BP0067387

Bearing 6205 2RS, air tire (not shown); #BC…631510 & above

Wheel cover, air tire (not shown); #BC…631510 & above

Inner wheel spacer, hard tire

Inner wheel spacer, air tire

Outer wheel spacer, hard tire

Outer wheel spacer, air tire

Bolt HH M14-2.00x170 C8.8 Z P, hard tire

Bolt HH M20-2.50x230 C8.8 Z P, air tire

Nut PT M14-2.00 C6 Z TK, hard tire

Nut PT M20-2.50 C6 TK Z, air tire

Chain rod 90”; GM2190

Chain rod 110”; GM2109

Cotter pin Ø4x25

Chain

Spacer, outer

Support, front roller; #BC…847881 & below

Support, front roller; #BC…847882 & above

Front roller Ø3”

Roller pin; #BC…847881 & below

Roller pin; #BC…847882 & above

Spacer ¼”

Bolt HH M10-1.50x150 C8.8 Z F

Nut ES M10-1.50 Z TK

Nut ES M10-1.50 Z TN

Nut PT M12-1.75 C6 Z TK

Bolt HH M12-1.75x90 C8.8 Z P

Spacer

Bolt HH M08-1.25x16 C8.8 Z F

Nut PT M08-1.25 C6 Z TK

Rear protection, side 90”; GM2190

Rear protection, side 110”; GM2109

Rear protection, center 90”; GM2190

Rear protection, center 110”; GM2109

5BP503885B

5BP950109B

5BP950111B

5BP950818B

5BP950406B

5BP950407B

5BP950366B

5BP950405B

5BP950346B

5BP950403B

5BP950404B

5BP503853B

5BP971379B

Mower safety decal set

Decal “DANGER - Avoid injury from PTO”

Decal “CAUTION - To avoid serious injury”

Decal “DANGER - Rotating blades; Thrown objects”

Decal “WARNING - Falling off”

Decal “WARNING - Crushing and pinching hazard”

Decal, red reflective

Decal, yellow reflective

Decal “Frontier”

Decal “GM2190”

Decal “GM2109”

Manual holder w/hardware

Operator’s & Parts Manual “GM2190 & GM2109”

When replacing wheel you should also order two (2) outer wheel spacers (5BP0067414) and one (1) inner wheel

spacer (5BP0067412).

P^ARTSMANUAL

FRONTIER

10/2010

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GROOMING MOWERS

SPINDLE

OPERATOR’S MANUAL

GM2190, GM2109

P^ARTSMANUAL

FRONTIER

10/2010

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GROOMING MOWERS

SPINDLE

OPERATOR’S MANUAL

GM2190, GM2109

Ref.

Part #

Description

Pulley C/180x1

Grease fitting Ø8, press in

Locking ring ES GUK M35-1.50

Pulley C/180x2

Qty.

5BP0067174

5BP0029036

5BP0037098

5BP0067173

5BP0067185

5BP0001059

Spacer

Oil seal 45.65.10

5BP0044281A Bearing 32007

5BP0030064

5BP0044285

5BP0023265

5BP0067191

5BP0067202

5BP0067183

5BP0067214

5BP0044318

5BP0044598

5BP0067212

5BP0044317

5BP0067207

5BP0057158

5BP0030054

Nut PT M12-1.75 C6 TK Z

Spindle

Bolt HH M12-1.75x40 C8.8 Z F

Oil seal 42.65.10

Spindle rotor

Key 8x10x35

Nut CA M18-2.50 C5 Z TK

Blade 90”; GM2190

Blade 110”; GM2109

Bolt blade SP M18-2.50x48

Blade stop plate

Spindle assembly

Cotter pin Ø4x45

Bolt HH M12-1.75x50 C8.8 Z F

P^ARTSMANUAL

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10/2010

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GROOMING MOWERS

GEARBOX

OPERATOR’S MANUAL

GM2190, GM2109

P^ARTSMANUAL

FRONTIER

10/2010

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GROOMING MOWERS

GEARBOX

OPERATOR’S MANUAL

GM2190, GM2109

Ref.

Part #

5BP0002295

5BP0007172A Bearing 30207

5BP0005556

5BP0044223

5BP0044221

5BP0042122

5BP0044217

Description

Oil seal 35.62.10

Qty.

Input shaft

Shim Ø35x45x2

Ring gear

Snap ring, outer Ø35

Bearing 30305

5BP0001107A Breather cap

5BP0006691

5BP0006658

5BP0030193

5BP0130193

5BP0006656

5BP0006349

5BP0030064

5BP0044187

5BP0074183

5BP0044222

Gasket

Housing, gearbox

Gasket 2/10

Gasket 5/10

Cover, gearbox housing

Bolt HH M10-1.50x20 C8.8 Z F

Nut PT M12-1.75 C6 TK Z

Support plate, gearbox

Bolt CS M12-1.75x40 C10.9 Z F

Pinion gear

5BP0012149A Bearing 6208

5BP0006687

5BP0001154

5BP0053248

5BP0008138

5BP0006684

5BP0044244

5BP0044251

5BP0044593

5BP0066039

5BP0030095

Spacer

Snap ring, inner Ø80

Shim Ø40x50x2

Snap ring, outer Ø40

Oil seal 40.80.10

Key 8x7x40

Pulley C/280x2; GM2190

Pulley C/250x2; GM2109

Washer flat Ø31 N

Locking ring ES GUK M30-1.50

5BP0500614

Gearbox 540 rpm, complete

P^ARTSMANUAL

FRONTIER

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GROOMING MOWERS

IMATCH/QUICK HITCH ADAPTER (OPTION)

OPERATOR’S MANUAL

GM2190, GM2109

P^ARTSMANUAL

FRONTIER

08/2008

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GROOMING MOWERS

IMATCH/QUICK HITCH ADAPTER (OPTION)

OPERATOR’S MANUAL

GM2190, GM2109

Ref.

Part #

Description

A-frame support

Floating top link

Floating yoke

Bolt HH M20-2.50x160 C8.8 Z P

Bolt HH M16-2.00x65 C8.8 Z F

Bolt HH M16-2.00x110 C8.8 Z P

Nut PT M16-2.00 C6 Z TK

Nut PT M20-2.50 C6 Z TK

Linking plate¹⁷(GM21 only)

Bolt HH M16-2.00x50 C8.8 Z P¹⁸

Nut PT M16-2.00 C6 Z TK¹⁹

Bolt HH M16-2.00x150 C8.8 Z P²⁰(GM21 only)

Qty.

5BP503816B

5BP503817B

5BP503815B

5BP503300B

5BP0009884

5BP0070346

5BP0005581

5BP0005507

5BP0067251

5BP0002365

5BP0005581

5BP0006834

5BP960385B

Manual FR QHA

The linking plates come with the mower and are not part of the Quick Hitch Adapter kit.

The four (4) bolts (5BP0002365) and (4) nuts (5BP0005581) come with the mower and are not part of the Quick

Hitch Adapter kit.

The four (4) bolts (5BP0002365) and (4) nuts (5BP0005581) come with the mower and are not part of the Quick

Hitch Adapter kit.

This bolt (5BP0006891) comes with the mower and is not part of the Quick Hitch Adapter kit.

P^ARTSMANUAL

FRONTIER

08/2008

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GROOMING MOWERS

DRIVELINE

OPERATOR’S MANUAL

GM2190, GM2109; SERIAL #BC…847892 & BELOW

Ref.

Part #

Description

Qty.

5BP1024010C PTO yoke

5BP1004020C Cross & bearing

5BP1944070NC Outer tube & yoke

5BP1954072NC Inner tube & yoke

5BP1784210C Locking ring, outer tube; #BC…847892 & below

5BP1784201C Rigid cone, outer tube; #BC…847892 & below

5BP1784203C Standard cone (tractor end); #BC…847892 & below

5BP1784212C Pin; #BC…847892 & below

5BP1006065C Chain, anti-rotation

5BP1773068C Shield, outer tube

5BP1872068C Shield, inner tube

5BP1784205C Long cone (implement end); #BC…847892 & below

5BP1213233C Stiffening ring; #BC…847892 & below

5BP1784202C Rigid cone, inner tube; #BC…847892 & below

5BP1784211C Locking ring, inner tube; #BC…847892 & below

5BP90SL4068C Shield, complete; #BC…847892 & below²¹

5BP950463B

5BP950464B

5BP0500416

Decal “DANGER - Rotating driveline, keep away” outer shield

Decal “DANGER - Guard missing, do not operate” outer tube

Driveline, complete

Complete shielding is interchangeable with part # 5BP96SL4068C.

PARTS MANUAL

FRONTIER

05/2008

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GROOMING MOWERS

DRIVELINE

OPERATOR’S MANUAL

GM2190, GM2109; SERIAL #BC…847893 & ABOVE

Ref.

Part #

Description

Qty.

5BP1024010C PTO yoke

5BP1004020C Cross & bearing

5BP1944070NC Outer tube & yoke

5BP1954072NC Inner tube & yoke

5BP1784710C Locking ring, outer tube; #BC…847893 & above

5BP1211733C Stiffening ring; #BC…847893 & above

5BP1781703C Standard cone (tractor end); #BC…847893 & above

5BP1211735C Stop ring; #BC…847893 & above

5BP1881709C Safety sleeve; #BC…847893 & above

5BP1773068C Shield, outer tube

5BP1872068C Shield, inner tube

5BP1781704C Long cone (implement end); #BC…847893 & above

5BP1784711C Locking ring, inner tube; #BC…847893 & above

5BP96SL4068C Shield, complete

5BP1006065C Chain, anti-rotation

5BP950463B

5BP950464B

5BP0500416

Decal “DANGER - Rotating driveline, keep away” outer shield

Decal “DANGER - Guard missing, do not operate” outer tube

Driveline, complete

PARTS MANUAL

FRONTIER

05/2008

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Use only original spare parts

without the expressed written permission of the Company. Technical information provided in this

manual is approximate, the Company reserves the right to modify or improve the models shown for

technical or commercial purposes. Pictures in this manual do not necessarily show the machine as

delivered.

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Manual 5BP971379B

Date 10/10/2010

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