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MAINTENANCE OF YOUR TRIMMER
AIR FILTER MAINTENANCE
Never run the engine without a filter or with a
dirty filter. This will greatly reduce engine effi-
ciency and lead to engine damage.
Your trimmer is fitted with an Air Cleaner, the
maintenance for which is as follows:-
• Check the filter before each use.
• Clean every 25 hrs or more frequently
when used in dusty areas.
• Replace filter every 200 hrs.
1. Press the latch tabs on the top of the air
cleaner cover and remove the cover.
2. Check the filter is clean and in good condition.
If the filter is dirty:-
Tap the air filter several times on a hard sur-
face to remove dirt, or blow compressed air
through the air filter from the clean side that
faces the engine. Never try to brush off dirt.
Brushing will force dirt into the fibers.
3. Wipe dirt from the air cleaner body and
cover using a moist rag. Be careful to pre-
vent dirt from entering the air duct that leads
to the carburetor.
4. Replace the filter and air cleaner cover.
Air Cleaner Body
Air Duct
Filter
Latch Tabs
SPARK PLUG
An oily or carboned spark plug makes starting
difficult and decreases the efficiency of the
engine. Periodically remove the spark plug
and clean and adjust when necessary.
Gap setting 0.028 - 0.031".
Do not remove spark plug when engine is hot.
Do not sand blast the spark plug to clean it.
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 clean all external parts of the trimmer.
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. Store in a horizontal
position, or drain fuel from tank if stored vertically
with spark plug up.
DIFFICUL T TO START
Check that the Choke/Run/Stop lever is in the
'choke' position when cold and the 'run' position
when hot. Ensure fuel tap is open. Fuel may
may be stale (e.g. long time since trimmer was
used). Renew with fresh fuel. Checkthatthecut-
tingdiscis securely tightened.
ENGINE OVERHEATING
Check flow of air over cylinder. Remove all
grass and dirt. Check air filter is clean.
9006 Perimeter Woods Drive
To service the underside of your machine,
close the fuel tap, let the engine run until it
stops, disconnect the spark plug lead and
tip the machine on its side with the Air
Cleaner upper most.
AIR CLEANER
Air Cleaner
The cutting line is sharp, wear gloves
Cover
and take care when handling it.
Check the cutting line frequently during
use and on completion of trimming.
Removing the Cutting Line
Switch machine off and disconnect spark
plug lead.
Push the line towards the centre of the cut-
ting disc and carefully remove. See Fig 1.
Fig. 1
Renewing the Cutting Line
Thread through the hole on the rim of the
cutting disc and carefully pull the line into
place as illustrated in Fig. 2.
Fig. 2
At all times the amount of line extending
beyond the edge of disc should be of an even
length. If there is a variation of more than half
an inch between the two lengths of line
replace immediately with two full new lengths.
Important:- Only fit two cutting lines at
any one time
FAULT FINDING HINTS
POOR FLOTATION OR
Ensure underside of deck is clean.
Air filter may need cleaning (see air filter
maintenance).
Remove disc/impeller and clean thoroughly
between vanes.
Charlotte, NC 28216
1-800-GET-SAWS
●
●
The policy of continuous improvement means that specifications may be altered without prior notice. 1997 Husqvarna. HVT40 Operator Manual Part
IMPORTANT
TIP
THIS
WAY
ONLY
CUTTING LINE
LACK OF POWER
Dealer Locator 1-800-HUSKY 62
Web Site www.husqvarna.com
●
●
HEIGHT ADJUSTMENT
2
3
Fig A
1. Loosen bolt (A1), using a 9/16 AF 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.
● Important:- Cutting line must be on the side
of the disc facing the grass when fitted.
4. Replace impeller (A6) on to engine shaft
ensuring that it is correctly located. Replace
spacer (A5) (if fitted), cutting disc (A4), washer
(A3), spring washer (A2) and bolt (A1).
5. Secure assembly with bolt (A1), making
sure complete assembly is tight, (if in doubt,
contact your service dealer).
Fig B
Fig C
Fig D
Fig E
EXCESSIVE VIBRATION
Check that the cutting disc is securely fastened
and undamaged.
Tighten all external bolts and screws.
Check crankshaft - it may have bent.
ENGINE WARRANTY
A full warranty statement is detailed on the
service literature, and with the Honda engine
literature supplied with this product.
Dealer Web Site www.husqvarna.service.com
●
6
5
4
1
Highest
height
of cut
Lowest
height
of cut
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