5118384-02
AIR CUSHION GASOLINE TRIMMER
OPERATOR MANUAL
HVT40
READ THESE INSTRUCTIONS
CAREFULLY!
KNOW YOUR CONTROLS.
LEARN HOW TO STOP YOUR
TRIMMER IN AN EMERGENCY
ASSEMBLY OF LOWER
Trimming Position
HANDLE TO DECK
With the trimmer on the ground:
1.Remove the bolts (1), washers (2) and
lock nuts (3) from the polythene bag.
2.Place one washer (2) on to the bolt (1)
and secure the lower handle (4) by
placing bolts (1) through deck brackets
(5) and lower handle (4).
3.Place washer (2) on bolt and secure
with lock nut (3).
Upper Handle
4
3
2
Start/Stop
Switch
2
1
5
CARRYING THE TRIMMER
ASSEMBLY OF UPPER
HANDLE TO LOWER HANDLE
Tie
wraps
Bolt, washer
and Lock nut
Assemble upper handle (6) to lower
handle (7) by fitting bolts (8) and washers
(9) and securing with lock nuts (10).
Lower Handle
Tank Cap
6
Air Cleaner
7
Starting Handle
Debris Guard
8
Bolt,
washer
and
Lock nut
9
Deck
10
HANDLE POSITION
The handle position can be altered by
moving it forward for the park position or
back for the trimming position.
Primer
Spark Plug/Lead
NOTE:
Park Position
Before carrying the machine from one
trimming area to another, disconnect the
spark plug lead.
Carry the trimmer at the point of balance
(see illustration) with the cutting head
away from you.
PREPARATION
Before using your new Husqvarna Hover
Trimmer, make a careful note of the
details on the serial number label, which
can be found on the rear of the deck.
Always quote these details to your dealer
when enquiring about spares and
service.
NEVER CARRY THE TRIMMER WHEN
IT IS RUNNING.
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HOW TO USE YOUR TRIMMER
2. Move switch to ‘start’ position.
NOTE: IF THE ENGINE FAILS TO START
AFTER 3 PULLS, PRESS THE PRIMER A
FURTHER 3-5 TIMES AND FOLLOW
STEP 3.
FUEL MIXTURE
STOP
START -
STOP -
To operate the engine, you will need the
following:-
1.A clean, high quality 2 cycle oil.
Tecumseh specially formulated oil is available
at any Authorised Tecumseh Service Outlet.
Order as part number 730227.
Only when engine is running should the
trimmer be gently lowered to the horizontal
floating position. Always allow the engine to
warm up for a minute or two before
trimming.
Do not use multi-viscosity oils.
Disregard mix ratio instructions on oil contain-
ers if instructions conflict with fuel mix chart
below.
STOPPING
1.Move start/stop switch to 'stop' position.
USING THE ENGINE PRIMER
Fuel Mix Chart
U.S.
Mixture 24:1
S.1. (Metric)
2.As the engine dies, tilt the trimmer to
one side. This prevents a ring being
cut in your lawn.
3.When the engine has stopped, lower
the trimmer onto the ground.
When starting the trimmer for the first time or
after running the fuel tank dry, press the primer
15-20 times (fig 1), to establish the fuel supply
to the carburettor.
Gas Oil to be added Petrol Oil to be added
1 Gal.
2 Gal.
5 Gal.
4 Liters
8 Liters
167 ml
333 ml
833 ml
5 oz.
11 oz.
27 oz.
20 Liters
4.Put the handle in the Parking position.
COLD START - if the engine is cold and there
is fuel in the tank.
Press the primer 8 to 10 times (fig 1).
HOW TO CUT
2. A fresh, clean, unleaded regular
automotive gasoline. (Leaded regular and
unleaded or leaded premium grades of gaso-
line are acceptable substitutes.)
TOUGH AND HIGH GRASS
Note:Do not use gasoline containing methanol
(wood alcohol). Gasoline containing up
to 10% ethanol or grain alcohol
Fig. 1
Before cutting, particularly in long grass,
examine the ground and remove stones etc.
If grass is particularly tough, go slowly in order
to keep the engine revs up.
(“Gasohol”) may be used but requires
special care when engine is unused for
extended periods.
Do not attempt to mix oil and gasoline in the
engines own fuel tank.
USING THE TRIMMER ON
SLOPES
Ensure that the fuelinboththe fuelmixture
container and the engines fuel tank are
thoroughly mixed before use.
WARM START - if the engine is warm and
there is fuel in tank - DO NOT USE THE
PRIMER.
If the engine has run out of fuel, refill the tank
and press the primer 8-10 times
Exercise extreme caution while using this
trimmer on slopes.
Do not fill the fuel tank in an enclosed area,
when the engine ishotorwhileyouaresmok-
ing.
A slope is defined as uneven terrain on which
you, the operator, are unable to maintain your
feet firmly on level ground in order to use the
trimmer.
Thoroughly clean around the fuel tank filler cap
before filling, this will help to prevent dirt being
introduced into the fuel system.
Fig. 2
Do not fill the tank while the engine is running.
Do not use this trimmer on slopes which are
wet or too steep to maintain a firm footing
Fill the fuel tank through a funnel fitted with a
fine filter.
Always use heavy shoes when using this
trimmer.
Never fill fuel tank completely. Fill tank to 1/
below bottom of filler neck to provide for fuel
expansion.
2
”
Never push the trimmer up the slope.
Fuel should be stored in a cool place away
from naked flames.
Always keep the trimmer below you on the
slope.
Your carburettor is pre-set. Normally no further
adjustment is required.
COMPLETION OF TRIMMING
STARTING AND
STOPPING
Having completed the trimming, stop the
engine.
As soon as the engine begins to fade, tilt the
trimmer.
3. Place your left foot on the deck and grasp
the far arm of the handle with your left hand.
Tilt the trimmer towards you. (See Fig 2)
Pull the starting handle gently until you feel
compression. Let the starting handle return
slowly. Firmly pull the handle the full length,
when the engine should start; if not, repeat
the above procedure.
STARTING
1. Connect spark plug lead.
Disconnect the spark plug.
Cleaning Trimmer:- Remove grass adhering
to the underside of deck. A clean machine will
always work better and last longer than a dirty
one.
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MAINTENANCE OF YOUR TRIMMER
At all times the amount of line extending beyond
Do not remove spark plug when engine is hot.
Do not sand blast the spark plug to clean it.
Remove spark plug lead and spark plug.
ON COMPLETION OF TRIMMING
Clean grass from under deck. Remove any
leaves or grass cuttings from around the engine
cooling fins, carburettor and impeller air openings.
the edge of disc should be of an even length. If
there is a variation of more than half an inch
between the four lengths of line replace
immediately with four full new lengths.
Important:- Only fit four cutting lines at any
one time
WINTER CARE
For trouble-free trimming next season, make
sure that your trimmer is serviced immediately
after the last cut of the year, as follows:-
When the engine is cold, drain all fuel from the
tank and then run the engine until it stops. (Fuel
left in the machine becomes stale and causes
difficult starting). Thoroughly cleanallexternal
partsofthetrimmer. Clean air filter (see air filter
maintenance).
Inspect, clean and replace spark plug.
Do not replace spark plug lead.
Check and replace cutting lines.
Store the trimmer in a dry, damp-proof secure
area out of the reach of children.
AIR FILTER MAINTENANCE
G Your Tecumseh engine is equipped with a dry
paper cartridge air filter.
G Every 10 operating hours check condition of
paper cartridge.
G Every 50 operating hours (or more regularly)
replace the paper cartridge. (see Air Filter
Cleaning Instructions number 1).
G Do not attempt to wash, clean or oil the paper
cartridge.
HEIGHT ADJUSTMENT
6
5
4
G If engine is operating in dusty or dirty areas, the
air filter system will require more frequent
2
3
CUTTING LINE
The cutting line is sharp, wear gloves and
take care when handling it.
Check the cutting line frequently during
use and on completion of trimming.
Removing the Cutting Line
Air Filter Cleaning Instructions
(see illustration)
Fig A
1
1. Turn cover (3) (anti-clockwise) and remove it
1. Loosen bolt (A1), using a 13mm socket.
Remove bolt (A1), spring washer (A2), washer
(A3), cutting disc (A4) and spacer (A5) (if fitted).
2. Carefully remove impeller (A6) from engine shaft.
3. Select required height of cut, (See Figs B, C, D &
E) and replace any cutting lines required, ensuring
that cutting line is fitted on correct side of cutting disc.
G Important:- Cutting line must be on the side
of the disc facing the grass when fitted.
4. Replace impeller (A6) on to engine shaft ensur-
ing that it is correctly located. Replace spacer
(A5) (if fitted), cutting disc (A4), washer (A3),
spring washer (A2) and bolt (A1).
and filter (2) from flange (1). Discard paper
cartridge.
2. Clean cover and flange thoroughly.
3. Insert new cartridge (2) onto flange (1).
4. Position cover (3) against flange (1) with tab (4)
on cover inserted into slot (5) in flange (1).
5. Push cover firmly against flange and turn it
(clockwise) as far as it will go. Be sure
retainers are locked around flange.
Switch machine off and disconnect spark plug
lead.
Push the line towards the centre of the cutting
disc and carefully remove. See Fig 3.
Fig. 3
5
2
3
5. Secure assembly with bolt (A1), making sure
complete assembly is tight, (if in doubt, contact
your service dealer).
Renewing the Cutting Line
Holding the line with thumb and forefinger and
using other thumb as a guide, curve around
centre portion of the cutting disc (as illustrated
in Fig 4) and thread through the hole on the
rim of the cutting disc.
1
4
Highest
1. When cleaning the air cleaner, also check and
clean the debris guard using a soft brush.
2. If debris guard is very dirty, unscrew wing nut
and remove debris guard and filter.
3. Wash filter in clean soapy water, rinse, wrap in
a clean dry cloth and ‘squeeze dry’.
Fig B
Fig C
Fig D
Fig E
height of cut
Fig. 4
4. Re-assemble ensuring that the recoil rope
passes through the slot in the foam filter.
COOLING SYSTEM AIR INTAKE
Never operate the engine without the debris guard
and filter being fitted. Failure to fit the debris guard
and filter will cause premature engine failure.
Carefully pull the line into place as
illustrated in Fig. 5.
Fig. 5
SPARK PLUG
An oily or carboned spark plug makes starting dif-
ficult and decreases the efficiency of the engine.
Periodically remove the spark plug and clean and
adjust when necessary. Gap setting 0.030”
Lowest
height of cut
FAULT FINDING HINTS
EXCESSIVE VIBRATION
DIFFICULT TO START
POOR FLOTATION OR
Check that the start/stop switch is in the ‘start’position.
Check that the cutting disc is securely fastened
and undamaged.
Tighten all external bolts and screws.
Check crankshaft - it may have bent.
LACK OF POWER
Ensure hole in tank cap is clean.
Check correct fuel mixture is used.
Ensure underside of deck is clean.
Air filtermayneedcleaning(seeair filter
maintenance).
Ensure exhaust port on silencer does not have
excessive build-up of carbon.
Fuel mixture may be stale (e.g. long time since
trimmer was used). Renew with fresh mixture.
Check that correct amount of 2 stroke oil is being
used in the fuel mixture.
ENGINE WARRANTY
Checkthatthecuttingdiscissecurelytightened.
A full warranty statement is detailed on the
service literature, and with the Tecumseh
engine literature supplied with this product.
ENGINE OVERHEATING
Remove disc/impeller and clean thoroughly
between vanes.
Check flow of air over cylinder. Remove all
grass and dirt. Check correct fuel mixture.
Thoroughly clean Debris Guard.
9006 Perimeter Woods Drive
G
Charlotte, NC 28216
G
1-800-GET-SAWS
G
Dealer Locator 1-800-HUSKY 62
G
G
The policy of continuous improvement means that specifications may be altered without prior notice. 1997 Husqvarna. HVT40 Operator Manual Part
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