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17
MAINTENANCE
WARNING: Disconnect the spark
plug before performing m aintenance except
for carburetor adjustments.
HELPFUL TIP
IMPORT ANT: Have all
repairs other than the rec-
ommended maintenance
described in the instruction
manual performed by an
authorized service dealer.
If any dealer other than an authorized
service dealer performs work on the
product, Poulan PRO may not pay for
repairs under warranty. It is your re-
sponsibility to ma intain and perform
general maintenance.
CHECK FOR LOOS E
FASTENERS AND PARTS
S Spark Plug Boot
S Air Filter
S Housing Screws
S Assist Handle Screw
S Debris Shield
CHECK FOR DAMA GED OR
WORN PARTS
Contact an authorized service dealer fo r re-
placement of damaged or worn parts.
S ON/STOP Switch -- Ensure ON/STOP
switch functions properly by pushing and
releasing the switch. Make sure engine
stops. Wait 5 seconds before attempting to
restart unit to allow switch to reset. Restart
engine and continue.
S Fuel tank -- Discontinue use of unit if fuel
tank shows signs of damage or leaks.
S Oil tank -- Discontinue use of unit if oil tank
shows signs of dam age or leaks.
S Debris shield--Discontinueuse ofunitifde-
bris shield is damaged.
INSPECT AND CLEANUNIT AND LA-
BELS
S After each use, inspect complete unit for
loose o rdamagedparts. Cleanthe unitand
labels using adamp cloth with a milddeter-
gent.
S Wipe off unit with a clean dry cloth.
CHECK CHAIN TENSION
WARNING: Wear protective gloves
when handlingchain. Thechain is sharp and
can cutyoueven whenitis notmoving. M ake
chain adjustments with lower end supported.
Chain tension is very important. Chains
stretchduringuse. Thisis especially truedur-
ingthefirst fewtimes youuseyourpruner . Al-
ways check chain tension each time you use
and refuel your unit.
1. Use the screwdriver end of the chain ad-
justment tool (bar tool) to move chain
around guide bar to ensure kinks do not
exist. The chain should rotate freely.
Chain Adjustment Tool
Guide
Bar
2. Loo senbar clampnut untilit is fingertight
against the bar clamp.
Bar clamp nut
Adjusting Screw
3. Turn adjusting screw clockwise until
chain solidlycontacts bottomofguidebar
rail. Then, turn adjusting screw an addi-
tional 1 /4 turn.
Adjusting Screw -- 1/4 Turn
4. Using bar tool, roll chain around guide bar
to ensure all links are in bar g roove.
5. Lift up tip of guide bar to check for sag.
Release tipof guide bar,then turnadjust-
ingscrew1/4turnclockwise.Repeatuntil
sag does not exist.
6. While lifting tip of guide bar, tighten bar
clamp nut securely with the bar tool.
7. Use thescrewdriver endof thebar toolto
move chain around guide bar.
8. If chain does not rotate, it is too tight.
Slightly loosen bar clamp nut and loosen
chain by turning the adjusting screw 1/4
turn counterclockwise. Retighten bar
clamp nut.
9. If chain is too loose, it will sag below the
guide bar and needs to be tightened fol-
lowing above procedure.
WARNING: DO NOT operate the
pruner if the chain is loose. If thepruner is oper-
ated with a loose chain, the chain could jump off
the guide bar and result in serious injury .
CHECK CHAIN SHARPNESS
Asharp chainmakeswoodchips.A dullchain
makes a sawdust powder and cuts slowly.
See CHAIN SHARPENING i n the SERVICE
AND ADJUS T M ENT S sectio n .
CLEAN AIR FILTER
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after every
5 hours of operation.