Disc Mowers
DM36 Series
327-045M
Operator’s Manual
Read the Operator’s manual entirely. When
you see this symbol, the subsequent
instructions and warnings are serious - follow
without exception. Your life and the lives of
others depend on it!
!
8/7/2002
© Copyright 2002
Cover photo may show optional equipment not supplied
with standard unit.
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L
Land Pride
Important Safety Information
Important Safety Information
These are common practices that may or may not be applicable to the products described in
this manual.
Keep Riders
Off Machinery
!
Be Aware of Signal
Words
A signal word designates a degree or
level of hazard seriousness. The
signal words are:
WARNING!
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury, and
includes hazards that are exposed
when guards are removed. It may
also be used to alert against unsafe
practices.
L Riders obstruct the operator’s
view, they could be struck by
foreign objects or thrown from the
machine.
L Never allow children to operate
!
DANGER!
equipment.
Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury. This
signal word is limited to the most
extreme situations, typically for
machine components that, for
functional purposes, cannot be
guarded.
!
CAUTION!
Indicates a potentially hazardous
situation which, if not avoided, may
result in minor or moderate injury. It
may also be used to alert against
unsafe practices.
!
For Your Protection
Shutdown and Storage
OFF
L Thoroughly read and understand
the “Safety Label” section, read all
instructions noted on them.
L Lower machine to ground, put
tractor in park, turn off engine,
and remove the key.
L Detach and store implements in a
area where children normally do
not play. Secure implement by
using blocks and supports.
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Land Pride
Important Safety Information
These are common practices that may or may not be applicable to the products described in
this manual.
L Use the following maximum
speed - tow load weight ratios as
a guideline:
Transport
Machinery Safely
Use Safety
Lights and Devices
L Comply with state and local laws.
L Slow moving tractors,
L 20 mph when weight is less than
self-propelled equipment, and
towed implements can create a
hazard when driven on public
roads. They are difficult to see,
especially at night.
or equal to the weight of tractor.
L Maximum transport speed for
implement is 20 mph. DO NOT
EXCEED. Never travel at a speed
which does not allow adequate
control of steering and stopping.
Some rough terrains require a
slower speed.
L Sudden breaking can cause a
towed load to swerve and upset.
Reduce speed if towed load is not
equipped with breaks.
L 10 mph when weight is double
the weight of tractor.
L IMPORTANT: Do not tow a load
that is more than double the
weight of tractor.
L Flashing warning lights and turn
signals are recommended
whenever driving on public roads.
L Allow implement to cool
Practice Safe Maintenance
Tractors With Cabs
Tractors Equipped With
ROPS
completely.
L Understand procedure before
doing work. Use proper tools and
equipment, refer to Operator’s
Manual for additional information.
L Do not grease or oil implement
while it is in operation.
L Inspect all parts. Make sure parts
are in good condition & installed
properly.
L There should be sufficient
clearance for the operator when
mounted to a tractor with a cab or
that is equipped with ROPS.
L The ROPS may need to be
extended or flipped around to
obtain sufficient clearance.
L Work in a clean dry area.
L Lower the implement to the
ground, put tractor in park, turn off
engine, and remove key before
performing maintenance.
L Remove buildup of grease, oil or
debris.
L Remove all tools and unused
parts from implement before
operation.
DM36 Series Disc Mowers 327-045M
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Land Pride
Important Safety Information
These are common practices that may or may not be applicable to the products described in
this manual.
Wear
Tire Safety
Prepare for Emergencies
Protective Equipment
L Tire changing can be dangerous
and should be performed by
trained personnel using the
correct tools and equipment.
L When inflating tires, use a clip-on
chuck and extension hose long
enough to allow you to stand to
one side and NOT in front of or
over the tire assembly. Use a
safety cage if available.
L Be prepared if a fire starts.
L Protective clothing and equipment
L Keep a first aid kit and fire
should be worn.
extinguisher handy.
L Wear clothing and equipment
appropriate for the job. Avoid
loose fitting clothing.
L Prolonged exposure to loud noise
can cause hearing impairment or
hearing loss. Wear suitable
hearing protection such as
earmuffs or earplugs.
L Operating equipment safely
requires the full attention of the
operator. Avoid wearing radio
headphones while operating
machinery.
L Keep emergency numbers for
doctor, ambulance, hospital and
fire department near phone.
L When removing and installing
wheels, use wheel handling
equipment adequate for the
weight involved.
911
L Dismounting from a moving
Safety at All Times
tractor could cause serious injury
or death.
Thoroughly read and understand the
instructions given in this manual
before operation. Refer to the “Safety
Label” section, read all instructions
noted on them.
L Do not stand between the tractor
and implement during hitching.
L Keep hands, feet, and clothing
away from power-driven parts.
L Operator should be familiar with
L Wear snug fitting clothing to avoid
all functions of the unit.
entanglement with moving parts.
L Operate implement from the
L Turning tractor too tight may
cause implement to ride up on
wheels. This could result in injury
or equipment damage.
driver’s seat only.
L Do not leave tractor or implement
unattended with engine running.
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Land Pride
Important Safety Information
the correct safety labels are included in the request. To
Safety Labels
Your Mower comes equipped with all safety labels in place.
They were designed to help you safely operate your implement.
order new labels go to your Land Pride dealer.
5. Refer to this section for proper label placement.
To install new labels:
1. Read and follow label directions.
a. Clean the area the label is to be placed.
2. Keep all safety labels clean and legible.
3. Replace all damaged or missing labels.
4. Some new equipment installed during repair require safety
labels to be affixed to the replaced component as specified
by Land Pride. When ordering new components make sure
b. Spray soapy water on the surface where the label is to
be placed.
c. Peel backing from label. Press firmly onto the surface.
d. Squeeze out air bubbles with the edge of a credit card.
818-540C
13102
Danger Guard Missing
ROTATING DRIVELINE
KEEP AWAY!
13102
818-552C
Danger PTO Driveline
818-626C
Danger Crushing Hazard
20764
DM36 Series Disc Mowers 327-045M
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5/5/08
4
Land Pride
Important Safety Information
20763
818-641C
Danger Rotating Blades
20763
818-641C
Danger Rotating Blades
20763
818-642C
Danger Thrown Object
20763
818-642C
Danger Thrown Object
5/5/08
DM36 Series Disc Mowers 327-045M
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5
Land Pride
Important Safety Information
838-094C
Warning: High Pressure
20764
818-558C
Warning General Mower Safety
20763
818-543C
20763
Warning Guard Missing
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Land Pride
Introduction
Introduction
Land Pride welcomes you to the growing family of new
product owners.
Owner Assistance
The Warranty Registration card should be filled out by the
dealer at the time of purchase. This information is
necessary to provide you with quality customer service.
This Disc Mower has been designed with care and built by
skilled workers using quality materials. Proper assembly,
maintenance, and safe operating practices will help you
get years of satisfactory use from the machine.
If customer service or repair parts are required contact a
Land Pride dealer. A dealer has trained personnel, repair
parts and equipment needed to service the disc mower.
Application
The Land Pride Disc Mowers are designed and built to cut
hay, grass, and other cultivated forage crops on farms,
ranches, set-aside acres, and vast right-of-ways. They are
adapted for 540 rpm three-point hitch Category II offset
mounting and are Quick-Hitch adaptable. They are
compatible with 35 HP to 80 HP tractors equipped with live
or independent PTO’s. The DM3605 has 5 discs and an
82" cutting width. The DM3606 has 6 discs and a 96"
cutting width and the DM3607 has 7 discs and a 112"
cutting width.
The parts on your disc mower have been specially
designed and should only be replaced with genuine Land
Pride parts. Therefore, should your disc mower require
replacement parts go to your Land Pride Dealer.
Serial Number Plate
For prompt service always use the serial number and mod-
el number when ordering parts from your Land Pride deal-
er. Be sure to include your serial and model numbers in
correspondence also. Refer to Figure 1 for the location of
your serial number plate.
Land Pride Disc Mowers are designed to deliver good
cutting performance even in thick, tangled, and wet grass
conditions. Standard replaceable rock guards provide
cutter bar protection in stony conditions and will greatly
extend cutter bar life. A standard break-away latch will
release, allowing the cutter bar to swing back, if an
obstacle is hit.
Land Pride Disc Mowers are well suited for use in
agricultural regions where humidity and moisture
conditions are typically higher and the potential for crop
entanglement and tough ground conditions are present.
See “Features and Benefits”, “Section 5” for additional
information.
Using This Manual
• This Operator’s Manual is designed to help familiarize
you with safety, assembly, operation, adjustments,
troubleshooting, and maintenance. Read this manual
and follow the recommendations to help ensure safe
and efficient operation.
20775
Serial Number Plate Location
Figure 1
• The information contained within this manual was
current at the time of printing. Some parts may change
slightly to assure you of the best performance.
Further Assistance
• To order a new Operator’s or Parts Manual contact your
authorized dealer. Manuals can also be downloaded,
or printed from the Land Pride Service & Support Center
by your dealer.
Your dealer wants you to be satisfied with your new disc
mower. If for any reason you do not understand any part of
this manual or are not satisfied with the service received,
the following actions are suggested:
1. Discuss the matter with your dealership service
manager making sure he is aware of any problems
you may have and that he has had the opportunity to
assist you.
Terminology
"Right" or "Left" as used in this manual is determined by
facing the direction the machine will operate while in use
unless otherwise stated.
2. If you are still not satisfied, seek out the owner or
general manager of the dealership, explain the
problem and request assistance.
Definitions
NOTE: A special point of information that the operator
must be aware of before continuing.
3. For further assistance write to:
IMPORTANT: A special point of information related to
its preceding topic. Land Pride’s intention is that this
information should be read and noted before
continuing.
Land Pride
Service Department
P.O. Box 5060
Salina, KS 67402-5060
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DM36 Series Disc Mowers 327-045M
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Section 1 Assembly and Set-Up
Section 1 Assembly and Set-Up
It is also necessary to check whether the plate turning
right has right cutter blades and the plate turning left has
left cutter blades.
Tools Required
• Fork lift, crane hoist or block-and-tackle
• Impact wrench or socket and ratchet set (metric)
• Rubber mallet
• Box-end (metric), allen (metric) and crescent wrenches
• Drift pins
Cutter Bar and Gearbox Lubrication
The cutter bar should arrive with oil already added. After
assembly you may want to check to make sure. For
• Screwdriver
• Safety shoes, safety glasses and gloves. A hard hat
Before operating this unit add SAE 80 GL4 (EP) oil to
gearbox. For further instructions see Lubrication in
should be worn by anyone working under the crane.
Assembly Preparation
Having all the parts and equipment readily at hand will
speed up your assembly task and make the job as safe as
possible.
Mainframe Assembly
Prepare the area where the unit is to be assembled
making sure the area is swept clean of all dust and
contaminants. Un-package the crate and remove all
contents carefully so that the seals on hydraulic
components are not broken or pulled off.
Refer to Figure 1-2:
1. Insert the gearbox on the cutter unit into the
mainframe lug.
2. Assemble the gearbox pivot (#5) to the mainframe and
gearbox as shown and secure with 3/4” bolts (#13)
and lockwashers (#22).
NOTE: Remove heavy components from crate with a
hoist or block-and-tackle.
3. Insert bushing (#2) into transport road latch (#1) and
install on pin located on the cutting unit as shown.
Raise the mainframe with a forklift, hoist or
block-and-tackle and place on pallets or blocks so it is
elevated about 10” off the floor.
4. Install spring mount (#10) as shown and secure with
3/4” bolt (#14) and lock nut.
5. Assemble spring cushion assembly (#4) to the
mainframe as shown. Assemble the other end of the
spring cushion assembly and hydraulic cylinder (#25)
base end as shown using the long spacer (#9) and
short spacer (#8). Secure with 1” bolt (#12) and lock
nut (#18). Use one of the pins that comes with the
cylinder to attach the lower end in slotted brackets.
Your cutter bar will already be assembled. It is necessary
to check the direction of rotation of each cutter plate.
Figure 1-1 shows the proper cutter bar plate rotation. If
adjustments need to be made, refer to “Cutter Bar
6. Assemble spring assembly (#6) to the spring mount
(#10) using 5/8” bolt (#15), flatwashers (#19) and lock
nut (#17) to secure. Assemble the other end of spring
assembly to the cutting unit with long bushing (#9) and
cotter pin (#24).
DM3605
7. Assemble cylinder extension arm (#7) to the hydraulic
cylinder rod end. Assemble the other end to the same
pin as the road latch (#1) and secure with cotter pin
(#24).
8. Assemble breakaway assembly (#3) to the hitch with
5/8” nut (#16), lock washer (#21) and flat washer (#20)
(spring facing inward).
DM3606
DM3607
15144
Cutter Bar Plate Rotation
Figure 1-1
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Land Pride
Section 1 Assembly and Set-Up
Stroke Control for 3 Pt Disconnect:
When disconnecting unit from 3 Pt,
lock channel (#11) and spring pin
(#23) should be located between
spring tube and rod stop. For running
applications lock channel (#11) and
spring pin (#23) should be stored
below rod stop.
Spring Tension Adjustment for Spring Assembly (#6):
With unit completely assembled and attached to a tractor,
level 3 Pt arms on tractor, (make sure the stroke control is
in the storage position). Retract the cylinder so that bar is
in the vertical position. Tighten nut on the end of the spring
rod (7 disc measure 3 1/2” approx. from end of rod to nut).
Lower bar by lengthening cylinder to running position.
Retract the cylinder and adjust tension as stated
previously until cutter bar raises some what parallel to the
ground. After several hours of run time this may need to be
readjusted. Once the spring is adjusted, snug the jam nut.
20768
Main Frame Assembly
Figure 1-2
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Land Pride
Section 1 Assembly and Set-Up
Belt Cover and Pulleys Assembly
Refer to Figure 1-3:
1. Assemble the inner guard (#11) and the guard
reinforcement (#1) to the disc mower with the 3/8” X 1”
long bolts (#4) and flat washers (#6).
2. Install pulleys (#8) and (#9) as shown and secure with
keys (#2).
3. Install belt (#10) to pulleys. Pulley (#8) may need to be
adjusted so pulley can be assembled. Refer to “Belt
Support Stand Assembly
Refer to Figure 1-4:
Insert stand into tube on the hitch as shown and secure
with pin and hair pin cotter.
Support Stand
Figure 1-4
20765
Cutting Unit
Figure 1-3
20767
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Section 1 Assembly and Set-Up
5. Assemble shield (#6) to brackets with carriage bolts
Cutting Unit Assembly
Refer to Figure 1-5:
1. Install the support frame (#2) to the gearbox using the
M16 bolts (#18) and lock washers (#29).
(#14), washers (#24) and lock nut (#22).
6. Assemble the guide (#5) to the cutting unit with the
1/2” X 3 1/2” long bolt (#11), flat washer (#27) and lock
nut (#23). Place the spring (#33) between the guide
(#5) and flat washer (#27).
2. Assemble the blade bar support (#4) to the support
frame (#2) using the 3/8” X 2 3/4” long bolts (#15) and
lock nuts (#20).
7. Assemble the front tarp frame (#1) and rear tarp frame
(#3) to the support frame (#2) using 3/8” X 2 1/2” bolts
(#13), lock washers, nuts (#20), pins (#32) and hair
pin cotters (#31) to secure.
3. Assemble the blade bar support (#4) to the cutting unit
and secure with 1/2” X 1 1/2” bolt (#12), lock washer
(#26) and nut (#21).
8. Position tarp over frame (#3) so the sewn end is
towards the gearbox with cut out sliding down over
(#2). Pull the other end of the tarp over the other end
of the frame and slip the eyelets over the tarp frame
ends. Fasten tarp to frame using cable ties (#34) and
(#25).
4. Attach shield brackets (#7), (#8) and (#9). Bracket
(#7) is assembled with the longer socket head bolt.
Bracket (#8) is assembled with a 1/2” X 1 1/4” long bolt
(#16) and lock nut (#23). Bracket (#9) is assembled
with the shorter socket head bolt (#17) and lock
washer.
9. Assemble bumpers (#10) to tarp frames with cotter
pins (#30).
!
DANGER
Do not operate cutting unit without tarp in place!
Cutting Unit
Figure 1-5
20769
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Land Pride
Section 2 Operating
Section 2 Operating
6. If necessary use the adjustment on the lower 3-point
arms of the tractor to make sure that the mower is
level.
Attaching the Tractor
1. Back the tractor up to the disc mower so that the lower
draft arms are aligned with the lower lift pins of the
disc mower. Connect 3-point upper link. Connect to
lower 3-point arms with proper attaching hardware.
7. Raise the support leg and position it in the high
position.
8. With the disc mower attached to the tractor, connect
the PTO by twisting the collar on the end of the
driveline while sliding on to the PTO shaft. Release
collar and move yoke back and forth to make sure it is
locked in place.
2. Raise 3 Pt until stroke control for 3 Pt disconnect
becomes free. Move stroke control to storage position.
3. Raise the mower cutter bar off the ground slightly by
actuating the hydraulic cylinder.
4. Adjust the length of the tractor’s two sway link arms to
prevent swaying from side to side.
!
WARNING
5. Attach the chain to the top link of tractor making sure
the PTO driveline is level.
Be sure the driveline is properly connected. A loose yoke could
slip and cause personal injury or damage to the mower.
Tractor Hook Up
Spring Tension Adjustment for Spring Assembly:
With unit completely assembled and attached to a
tractor, level 3 Pt arms on tractor, (make sure the
stroke control is in the storage position). Retract the
cylinder so that bar is in the vertical position. Tighten
nut on the end of the spring rod (7 disc measure 3
1/2” approx. from end of rod to nut). Lower bar by
lengthening cylinder to running position. Retract the
cylinder and adjust tension as stated previously until
cutter bar raises some what parallel to the ground.
After several hours of run time this may need to be
readjusted. Once the spring is adjusted, snug the jam
nut.
20774
DM36 Series Disc Mowers 327-045M
5/5/08
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Section 2 Operating
Transporting
Operating Checklist
!
CAUTION
When traveling on public roads at night or during the day, use
accessory lights and devices for adequate warning to operator's
of other vehicles. Comply with all federal, state and local laws.
L
Check
Reference
Safety Rules
Operating Instructions
This section
IMPORTANT: Always disengage the tractor’s PTO
before raising the mower to transport position.
Check oil level in gearbox and cutter bar.
Check that all plugs in gearbox have been
replaced properly.
NOTE: When raising the mower to the transport
position be sure that PTO shaft does not contact
tractor or mower.
Be sure nuts and bolts are tight.
Be certain all guards and shields are in
place.
Operator’s
Manual
1. Make sure stroke control for 3 Pt disconnect is in the
storage position.
Lubricate mower as needed. Refer to
“Maintenance and Lubrication.”
2. Raise the cutter bar so it is in a vertical position.
3. Make sure transport lock engages.
Be sure all implement attaching points and
hardware are secure and in place.
Operator’s
Manual
4. Make sure the support leg is in the high position.
Check for Hydraulic Leaks
Operator’s
Manual
5. Approach the disc mower from the rear making sure
the Slow Moving Vehicle emblem of the tractor is
visible to oncoming traffic.
!
DANGER
6. Select a safe ground speed when transporting from
one area to another. When traveling on roadways,
transport in such a way that faster moving vehicles
may pass you safely.
To avoid injury or death from entanglement in rotating
drivelines, the drive gearbox shields must be in place and
secure when operating.
7. When traveling over rough or hilly terrain, shift tractor
to a lower gear.
!
DANGER
Operating Check List
Do not operate mower without the curtain completely in place
around the cutter bar. Do no lean against or stand on the
curtain.
In addition to design and configuration of equipment;
hazard control and accident prevention are dependent
upon the awareness, concern, prudence and proper
training involved in their operation, transport, maintenance
and storage of equipment. Before beginning to cut the
following inspection should be performed.
5/5/08
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Land Pride
Section 2 Operating
possibility of foreign objects being deflected by the cutting
blades.
Working Position
1. Tilt the angle of the cutter bar back towards the
horizontal position by lengthening top link to raise the
cutting height of the knives.
!
WARNING
Before lowering cutter bar, make sure no one is within 20 feet of
mower.
2. Reduce the forward speed.
1. Lower mower using the tractor lift.
3. Make sure the cutting blades can pivot if an
obstruction is hit.
2. Retract cylinder, pull rope to disengage transport
latch.
IMPORTANT: If an obstruction is hit, idle engine,
disengage PTO, shut off tractor, remove ignition key
and wait for all moving parts to come to a complete
stop. Inspect the entire mower and repair any
damage before resuming operation.
3. Release the hydraulic cylinder and lower the cutter bar
until it is parallel to the ground.
4. Raise 3-point so inner end of cutter bar is
approximately 12” off the ground. Lower cutter bar
hydraulic cylinder so outside end of bar is just
touching the ground. Lower 3-point to work position.
!
CAUTION
NOTE: Before using the mower, check the break-
away linkage to make sure all components work
correctly.
Do not disengage PTO when engine is at full PTO rpm. Always
idle engine before disengaging PTO.
IMPORTANT: To avoid personal injury, pick up all
rocks and other debris before mowing. Never
assume an area is clear, so enter a new area
carefully. Cut material higher the first time to allow the
mower to clear unseen objects.
Mowing Instructions
NOTE: Although the mower is shielded to prevent
objects from being thrown by the blades, no one
shield is 100% effective. As a rule most people are
not knowledgeable of the dangers of being around a
disc mower while it is in operation. Therefore, the
operator should always stop mowing when someone
passes by.
The break-away latch allows the cutter bar to swing back if
an obstruction is hit. If the latch releases, stop the tractor
immediately, idle engine and disengage the PTO.
To reset the cutter bar, back the mower slowly and
carefully until breakaway latch repositions. The factory
setting of the latch is adapted to most working conditions.
!
WARNING
Prolonged exposure to high sound levels require hearing
protection. Wear hearing protection when operating this
machine with open platform tractors.
Check the cutter bar for any damage before resuming
operation.
If the cutter bar continues to break away after resetting,
the pressure of the spring assembly can be increased. In
all cases the length must not be less than 3 3/4” to 3 7/8”
or safety disengagement cannot function.
Allow a few minutes for oil to spread in the cutter bar
before engaging the PTO when changing from transport to
operating position.
With the cutting bar on the ground, engage the PTO at low
tractor idle and accelerate gradually to 540 rpm PTO
speed.
The stack of spring washers should be compressed to
3 3/4” to 3 7/8”. See Figure 3-1.
If the cutter bar is operated at an angle for long periods of
time, hold it horizontal for a few minutes every half hour or
so of work to help lubricate gears at upper end of cutter
bar.
3 3/4”
3 7/8”
Adapt forward speed to working conditions. Gear down
when mowing in dense crops. Do not lower tractor rpm.
Adverse Field Conditions
!
DANGER
15092
Spring Washers
Do not use machine in rocky or stony conditions.
Figure 3-1
Extra care and precaution should be taken in rough or
debris-ridden fields. The following adjustments should be
made to the mower in these conditions to minimize the
DM36 Series Disc Mowers 327-045M
5/5/08
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Section 2 Operating
If you do hit an object when you are mowing, immediately
Operating Instructions
disengage the PTO, idle the engine, stop the tractor, wait
for all moving parts to come to a complete stop, shut off
the tractor, set the brake, remove the keys, and inspect for
damage. If damage is present, make the necessary
repairs. If no damage is present, but you have tripped the
Break Away Safety Latch, slowly reverse the tractor until
the latch resets and proceed with mowing operations.
By now you should have thoroughly read your Disc Mower
Operator’s Manual, properly attached your Land Pride
Disc Mower to your tractor, and reviewed the Operating
Checklist. If you have not yet completed all of these
functions, please do so now.
Now that you’re properly briefed and your Disc Mower is
ready, it’s time to transport to the field.
Prior to actually beginning cutting operations, you will
want to get the mower up to full 540 rpm PTO speed by
engaging the PTO with the tractor engine at idle and
gradually increasing engine rpm to PTO speed. Once you
reach the full 540 rpm, allow the mower to run for a few
minutes at level position so the oil in the cutter bar can
lubricate all internal moving parts. You will also want to
take this opportunity to make a quick Operational Running
Check. Listen and visually inspect for any component or
part that may be loose or out of adjustment. Don’t be
alarmed by the noise level of the free running Disc Mower.
It will actually become quieter when you begin mowing
and have some run in time on it.
For transport purposes, your Disc Mower should be
securely locked with the cutter bar in the upright or vertical
position. Make sure the support leg is in the high position.
A "Slow Moving Vehicle" sign should be in place and
visible from the rear, if you are using a public road or
right-of-way. Select a safe speed and transport to your
cutting site in such manner that faster moving vehicles can
pass you safely.
Once you have safely arrived at your field, position your
tractor on level ground. Make sure that no one is within 20
ft of the mower, as your prepare to lower the cutter bar
from transport to working position. Lower the three-point
hitch to a point where the inboard end of the cutter bar is
approximately 12" off of the ground. Retract your lift
cylinder and pull on the latch cord to release the transport
or road-latch mechanism. Using your lift cylinder control
lever, slowly lower the cutter bar until the outer end
touches the ground. Adjust the three-point hitch to
"working position" where the driveline is horizontal with
the ground and lock the three-point hitch control lever in
place. Extend the lift cylinder until there is 1" of clearance
over the reach arm. Your Disc Mower is now in working
position.
If your Operational Running Check was ok, begin mowing
operations by opening up the lands on your field. Make
enough lands so you can easily make your turns to
properly line up for each pass down the field. If your tractor
and Disc Mower are set up right, you should be able to
straddle the previous swath as you make each
subsequent pass starting in the center of the field. If you
do experience cutting problems, refer to the "Trouble
Shooting" section of the Operator’s Manual for corrective
action.
When you are done mowing for the day and need to
transport the mower to your storage site, simply reverse
the process you used to take the mower out of transport
mode. When you are done mowing for the season, clean
and lubricate your mower, replace warn or missing parts,
release tension on the belts, install the stroke control to
the tarp frame cushion spring rod and store the unit with
the cutter bar in the horizontal working position. You will
get longer service life out of your mower by storing it inside
and repainting scratched or rusted components.
Controlling or setting your cutting height is accomplished
by adjusting the "top link" on your three-point hitch.
Extending or lengthening the top link will raise your cutting
height, while shortening the top link will lower the cutting
height. If you are cutting in an area you are not familiar
with or believe there might be rocks or debris present, you
must raise the cutting height accordingly. This will reduce
the potential of personal injury and or damage to the
machine. Shut the mower down immediately if someone
approaches in a vehicle or on foot.
With a little practice and experience you should become
very good at operating your Land Pride Disc Mower.
5/5/08
DM36 Series Disc Mowers 327-045M
15
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Section 3 Adjustments
Section 3 Adjustments
Transport Lock Operation
!
DANGER
The transport lock is designed so that the operator does
not need to get off the tractor from field operation retract
the hydraulic cylinder until lock engages. From transport
position pull rope and extend the cylinder until bar reaches
field run position.
Before making any adjustments to this machine, disengage
PTO, shut off tractor, remove ignition key and wait for all
moving parts to stop. Disconnect the PTO driveline.
20773
Transport Lock
Figure 2-1
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Land Pride
Section 3 Adjustments
Belt Tension Adjustment
Belt must be properly tensioned at all times to avoid
excessive flopping and slipping. Loose belt will also cause
poor cutting and premature wear.
Midpoint
Check tightness of the belt regularly, especially when
working the first few hours.
Always retighten or check belt after 4-8 hours of operation.
Refer to Figure 2-2.
1. Loosen main pivot bolt.
2. Tighten nut on the belt tension bolt until you have a
3/4” deflection midpoint between pulleys. Tighten
main pivot bolt. Refer to Figure 2-3.
3/4”
Pivot
Bolt
20766
Belt Deflection
Figure 2-3
Tension Bolt
Belt Tension Adjustment
Figure 2-2
20762
is done by varying the upper 3-point hitch link length until
desired cutting height is achieved. Shorten the upper
3-point hitch link to lower and lengthen to raise.
Cutting Height
Refer to Figure 2-4:
Cutting height can be adjusted with the upper 3-point hitch
link.
To minimize blade and disc wear, improve grass regrowth
and get maximum nutritive value from the crop, minimum
cutting height should never be adjusted less than 1 1/4“.
Maximum cutting height of 2 3/8” is achieved when the
discs are parallel to the ground. Adjustment of cutting
height is achieved by altering the cutter bar tilt angle. This
20796
Cutting Height
Figure 2-4
5/5/08
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Land Pride
Section 4 Maintenance and Lubrication
Section 4 Maintenance and Lubrication
General Maintenance
!
Proper servicing and adjustment is the key to the long life
of any farm implement. With careful and systematic
inspection, you can avoid costly maintenance, time and
repair.
CAUTION
When changing blades, always replace the blade bolt & blade
nut together at the same time. Worn or damaged blade bolts or
nuts could fail in a hazardous manner that could cause injury.
Blade Replacement
!
DANGER
Refer to Figure 4-1:
1. New blades are 1.85” wide. Blades should be
replaced when they are worn to about
Before servicing this machine, turn off the tractor engine,
remove the ignition key and disconnect the PTO driveline.
1 5/16” (B) wide at a distance of 3/8” from the disc. The
length (A) of the blade should be greater than 2 1/2”.
Each new machine should be checked after the first 10
hours of work. All screws and bolt torques should be
routinely checked.
2. Replace blades if the hole for the securing bolt has
become oval 3/32” more than the diameter of the
original hole.
At the beginning of each season
1. Check and/or change the oil; lubricate or grease all
points. See Lubrication in this section.
2. Check blade wear and condition of their fasteners, see
3. Check wear on guards and curtain.
4. Retention belts, see “Belt Tension Adjustment”,
5. Check all screws and bolts to be sure they are tight.
Servicing Blades
Cutting quality as well as safe operation depend on the
regular inspection and care given to the knives.
Blade Wear
Figure 4-1
15093
3. Blades are reversible.
Fastener Replacement
!
WARNING
NOTE: Always replace blade bolts and nuts when
they have been removed 5 times.
To avoid personal injury when the blades and/or carrier are
being serviced, always block the mower up to prevent it from
falling.
1. Replace fasteners when a visible deformation is
found.
Check blades for cracks and wear and blade bolts for
tightness daily. Blades should be replaced when they are
worn excessively, bent, nicked, deformed, or out of
balance.
2. Replace bolts when wear on the bolt head reaches the
contact area of the blade.
3. Replace bolts when the flat sides at the bolt flange are
excessively worn or missing altogether.
NOTE: Blade bolts should be tightened to 55 ft-lb
torque.
Refer to Figure 4-2:
4. Replace bolts when the diameter (D) of the bolt
shoulder is less than 5/8”.
NOTE: Always replace damaged blades. Never
straighten a bent blade. Never replace one knife only
per disc. Always replace both of them to avoid
creating an out-of-balance force.
5. Replace nuts when the height (H) of the nut is less
than half of the original height of 3/8”.
6. Replace Belleville washers on breakaway if they are
flattened.
!
CAUTION
Replace with Land Pride blades only. Substitute blades may not
meet specifications and may fail in a hazardous manner that
could cause injury.
Fastener Wear
20798
Figure 4-2
DM36 Series Disc Mowers 327-045M
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Section 4 Maintenance and Lubrication
Cutter Bar Timing Adjustment
Removal of disc shaft assemblies
Refer to Figure 4-3:
1. Rotate the long axis of the discs adjacent to the
replaced shaft assembly 90 degrees to the long axis of
the cutter bar.
2. Line up the new gear’s mounting holes with holes in
the cutter bar. Rotate gear so that the axis of two of the
disc mounting holes are 90 degrees to the long axis of
the cutting bar (figure 4-3). Try sliding gear into place.
This step may need to be repeated, using the nest pair
of holes until the gear will slide into place. Apply
sealant between gear assembly housing and cutter
bar then bolt housing into place.
3. When gear is lined up correctly, the disc will now
mount to the gear with it’s long axis parallel to the long
axis of the cutter bar (90 degrees to the axis of the
adjacent discs).
Disc Assembly
Figure 4-3
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Land Pride
Section 4 Maintenance and Lubrication
Storage
At the end of the working season or when the mower will
not be used for a long period, it is good practice to clean off
any dirt or grease that may have accumulated on the
mower and any of the moving parts.
1. Clean the Disc Mower as necessary.
2. Check the blades and blade fasteners for wear and
3. Inspect the mower for loose, damaged or worn parts
and adjust or replace as needed.
5. Release tension on drive belts.
6. Move stroke control to disconnect position.
7. Store cutter bar in horizontal (operating) position.
8. Store the Disc Mower inside if possible for longer Disc
Mower life.
9. Repaint parts where paint is worn or scratched to
prevent rust.
DM36 Series Disc Mowers 327-045M
5/5/08
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Section 4 Maintenance and Lubrication
Lubrication
Multi-purpose
spray lube
Multi-purpose
grease lube
Multi-purpose
oil lube
Intervals at which
lubrication is required
Lubrication
50
Legend
20
Driveline
Quantity = Clean & coat the inner tube of the driveline with a
light film of grease and then reassemble.
14294
8
Driveline U-Joints
Type of Lubrication: Grease
14293
As
Required
Gearbox
Check oil level in the gearbox by removing the vent plug and
checking the dipstick. If the level is below line on the dipstick,
add oil.
NOTE: Do not overfill. Mower should be level when
checking oil.
Type of Lubrication: SAE 90 GL4 (EP) gear lube
Quantity = fill until level with line on the dipstick
14893
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DM36 Series Disc Mowers 327-045M
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Section 4 Maintenance and Lubrication
As
Required
Cutter Bar
Check oil level in the cutter bar by removing the filler level
plug with cutter bar in transport position. (The plug is located
between the first and second discs on the DM3605 and
between the second and third discs on DM3606 and
between the second and third discs on DM3607.) If the oil
level is low, add oil.
20772
NOTE: Do not overfill. Mower should be level and
cutter bar vertical when checking oil. Be sure to let
cutting bar set in vertical position for a few minutes
before checking to allow time for oil to flow to the
bottom of bar.
Type of Lubrication: SAE 90 GL4 (EP) gear lube
Quantity =fill until level with in filler level plug hole.
20
Frame Pivot Point
Type of Lubrication: Grease
20763
20
Hitch Pivot Point
Type of Lubrication: Grease
20763
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Land Pride
Section 5 Specifications and Capacities
Section 5 Specifications and Capacities
DM36 Series Disc Mowers
DM3605
DM3606
DM3607
5
6
7
Number of Discs
Cutting Width
6’ 9”
74”
8’ 0”
74”
9’ 4”
74”
Transport Width
35 - 80 HP
540 RPM
Recommended Tractor PTO HP Range
PTO speed
15,764 FPM
Disc tip speed
1045 lbs.
5.92 pints
1090 lbs.
2.06
1.48 pints
6.55 pints
1135 lbs.
7.4 pints
Weight (approximate)
Gearbox Ratio
Gearbox Oil capacity
Cutter Bar Oil capacity
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Land Pride
Section 6 Features and Benefits
Section 6 Features and Benefits
DM36 Series Disc Mowers
Benefits
Features
Cutter bar 82”, 96” and 112” widths 5, 6 and 7 Disc models available.
Common oil chamber
Warranty
Gears splash oil from gear to gear.
2 Year, 1 Year on driveline.
Cutting angle
15 Degrees down and 20 degrees up.
74” - usually not much wider than tire distance, safer in transport.
Three types of hook-ups. Cat. 2, Cat. 3 and Quick-Hitch Cat. 2.
Replaceable.
Narrow transport
Hook-ups
Rock Guards
Hydraulic cutterbar lift
Cutterbar Drive
Quickly raise for obstructions.
Gear
0” Minimum cutting height
Gates power drive belt
Run skid shoes on ground to mow very short.
Stronger than multiple belt system.
2 Hardened blades per disc,
reversible
Reversible blades give double life, hardened for longevity against debris.
3” Blade overlap
High blade tip speed
Storage stand
Eliminates skipping for a cleaner cut.
15,764 fpm, offers a nice clean cut.
Aids in storage and in hooking to tractor.
Easily replaceable when worn out.
Skid shoes
DM36 Series Disc Mowers 327-045M
5/5/08
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Section 7 Troubleshooting
Section 7 Troubleshooting
Problem
Cause
Solution
Dull Blades.
Replace blades.
Adjust machine.
Reduce ground speed.
Free blades.
Not cutting clean
Mower not level.
Ground speed too fast.
Blades locked back.
Conditions too wet for cutting.
Allow grass to dry before cutting. Slow ground
speed of tractor but keep engine running at
full PTO rpm.
Streaking conditions in swath
Dull blades.
Sharpen or replace blades.
Wet mud build-up between skid shoes Clean area between skids. Raise cutting
height.
Rough gears.
Run in or gear failure.
Replace bearing.
Gearbox noisy
Worn bearing.
Damaged oil seal.
Bent shaft.
Replace seal.
Gearbox leaking
Replace oil seal and shaft.
Replace seal or use a sealant on OD of seal.
Drain oil to proper level.
Replace gasket.
Oil seal not sealing in the housing.
Oil level too high.
Gasket damaged.
Bolts loose.
Tighten bolts.
Too much tilt on cutter bar.
Low PTO speed.
Reduce tilt.
Uneven stubble
Increase engine speed to run PTO at 540
rpm.
Blades not installed correctly.
Make sure that the arrow on the knife upper
face is pointing in the direction of rotation of
the disc.
Low disc speed.
Check belt for correct tension.
Replace blades.
Dull or broken blades.
Incorrect angle on cutter bar.
Change cutter bar angle using tractor top link.
Stubble too long
Insufficient cutter bar down pressure. Adjust compensating spring tension.
Very wet conditions
Adjust main frame height by shortening safety
chain as necessary.
Soil built up in front of cutter bar
Too much cutter bar down pressure
Adjust compensating spring tension.
Tighten break-away spring.
Insufficient tension on break-away
spring washers.
Machine breaking back too easily
5/5/08
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Section 8 Appendix
Section 8 Appendix
Torque Values Chart for Common Bolt Sizes
Bolt Head Identification
Bolt Head Identification
5.8
8.8
10.9
Bolt Size
(Inches)
in-tip
Bolt Size
(Metric)
mm x pitch
Grade 2
2
Grade 5
3
Class 5.8
Class 8.8
Class 10.9
Grade 8
1
4
N · m
ft-lb
5.6
6
N · m
11
ft-lb
8
N · m
ft-lb
N · m
ft-lb
N · m
ft-lb
N · m
ft-lb
1/4" - 20
1/4" - 28
5/16" - 18
5/16" - 24
3/8" - 16
3/8" - 24
7/16" - 14
7/16" - 20
1/2" - 13
1/2" - 20
9/16" - 12
9/16" - 18
5/8" - 11
5/8" - 18
3/4" - 10
3/4" - 16
7/8" - 9
7.4
8.5
16
18
12
M 5 X 0.8
M 6 X 1
4
7
3
6
5
9
7
13
10
14
5
11
8
15
11
15
11
24
17
33
25
M 8 X 1.25
M 8 X 1
17
12
26
19
36
27
17
13
26
19
37
27
18
13
28
21
39
29
27
20
42
31
59
44
M10 X 1.5
33
24
52
39
72
53
31
22
47
35
67
49
M10 X 0.75
M12 X 1.75
M12 X 1.5
M12 X 1
39
29
61
45
85
62
43
32
67
49
95
70
58
42
91
67
125
130
145
200
215
315
335
405
485
610
900
1050
1150
2100
2320
3660
4100
93
49
36
75
55
105
145
165
210
235
285
325
510
570
820
905
1230
1350
1750
1960
2460
2730
3230
3680
4290
4820
78
60
44
95
70
97
66
49
105
115
150
165
205
230
360
405
585
640
875
955
1080
1210
1520
1680
1990
2270
2640
2970
76
105
120
155
170
210
240
375
420
605
670
910
995
1290
1440
1820
2010
2380
2710
3160
3560
90
66
105
145
155
225
240
310
350
440
650
760
830
1510
1680
2650
2960
77
105
150
160
230
245
300
355
450
665
780
845
1550
1710
2700
3220
75
55
85
M14 X 2
92
68
105
115
165
180
230
260
325
480
560
610
1120
1240
1950
2190
95
70
110
120
150
170
265
295
430
475
645
705
795
890
1120
1240
1470
1670
1950
2190
M14 X 1.5
M16 X 2
99
73
105
130
150
235
260
225
250
340
370
480
540
680
750
890
1010
1180
1330
79
145
155
195
220
280
310
480
525
960
1060
1730
1880
105
115
145
165
205
230
355
390
705
785
1270
1380
97
M16 X 1.5
M18 X 2.5
M18 X 1.5
M20 X 2.5
M20 X 1.5
M24 X 3
110
170
190
165
185
250
275
355
395
500
555
655
745
870
980
7/8" - 14
1" - 8
M24 X 2
1" - 12
M30 X 3.5
M30 X 2
1-1/8" - 7
1 1/8" - 12
1 1/4" - 7
1 1/4" - 12
1 3/8" - 6
1 3/8" - 12
1 1/2" - 6
1 1/2" - 12
M36 X 3.5
M36 X 2
1
2
3
4
in-tpi = nominal thread dia. in inches-threads per inch
N· m = newton-meters
ft-lb= foot pounds
mm x pitch = nominal thread dia. in millimeters x thread pitch
Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.
DM36 Series Disc Mowers 327-045M
5/5/08
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Section 8 Appendix
Warranty
Land Pride warrants to the original purchaser that this Land Pride product will
be free from defects in material and workmanship beginning on the date of
purchase by the end user according to the following schedule when used as
intended and under normal service and conditions for personal use.
Overall Unit: 2 Year Parts and Labor
Gearbox: 2 Year Parts and Labor
Driveline: 1 Year Parts and Labor
Blades and belt considered wear items
This Warranty is limited to the replacement of any defective part by Land Pride
and the installation by the dealer of any such replacement part, and does not cover
common wear items such as blades, belts, tines, etc. Land Pride reserves the right
to inspect any equipment or parts which are claimed to have been defective in
material or workmanship.
This Warranty does not apply to any part or product which in Land Pride’s
judgment shall have been misused or damaged by accident or lack of normal
maintenance or care, or which has been repaired or altered in a way which
adversely affects its performance or reliability, or which has been used for a
purpose for which the product is not designed. Misuse also specifically includes
failure to properly maintain oil levels, grease points, and driveline shafts.
Claims under this Warranty must be made to the dealer which originally sold
the product and all warranty adjustments must be made through such dealer. Land
Pride reserves the right to make changes in materials or design of the product at
any time without notice.
This Warranty shall not be interpreted to render Land Pride liable for damages
of any kind, direct, consequential, or contingent to property. Furthermore, Land
Pride shall not be liable for damages resulting from any cause beyond its
reasonable control. This Warranty does not extend to loss of crops, any expense
or loss for labor, supplies, rental machinery or for any other reason.
No other warranty of any kind whatsoever, expressed or implied, is made
with respect to this sale; and all implied warranties of merchantability and
fitness for a particular purpose which exceed the obligations set forth in this
written warranty are hereby disclaimed and excluded from this sale.
This Warranty is not valid unless registered with Land Pride within 30 days from
the date of purchase by the end user.
5/5/08
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Corporate Office: P.O. Box 5060
Salina, Kansas 67402-5060 USA
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