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Replace the old chain when it becomes worn or
damaged. Use o nly the Low-Kickback replace-
ment chain specified in the repair parts list.
TO REPLACE CHAIN:
1. MoveON/OFFswitchtotheOFFposition
and disconnect spark plug.
2. Remove bar clamp nut.
3. Remove bar clamp.
4. Turn adjusting screw by hand counter-
clockwise until adjusting pin just touches
the stop.
5. Slide guide bar behind sprocket until
guide bar stops against sprocket.
6. Remove the old chain.
7. Carefully remove new chain from pack-
age. Hold chain with the drive links as
shown.
CUTTERS MUST FACE IN
DIRECTION OF ROTATION
Tip of
Bar
Cutter
Drivelink
Cutters
Depth Gauge
Drive Links
8. Place chain over sprocket, fitting the
drive links in the sprocket.
9. Fitbottomofdrive linksbetweentheteeth
in the sprocket in the nose of the guide
bar.
10. Fit chain drive links into bar groove.
11. Pull guide b ar forward until chain is snug
inguidebar groove. Ensurealldrivelinks
are in the bar groove.
12. Now, install bar clamp m aking sure the
adjusting pin is positioned in the lower
hole in the guide bar.
Adjusting Pin
Lower
Hole
Guide Bar
13. Install bar clamp nut and finger tighten
only . Do not tighten any further at this
point. Proceed to the CHAIN ADJUST-
MENT section.
CHAIN ADJUSTMENT
See CHECK CHAIN TENSION in MAINTE-
NANCE section.
CARBURETOR ADJUSTMENT
WARNING: Keep others away when
making idle speed adjustments. The chain
will be moving during most of this procedure.
Wearyour protective eq uipmentandobserve
all safety precautions. After making adjust-
ments, thechainmustnot m oveat idlespeed.
The carburetor has been carefully set at the
factory . Adjustment to the idle speed may be
necessary if you notice an y of the following
conditions:
S Engine will not idle when the throttle is re-
leased.
S The chain moves at idle.
Make adjustments with the unit supported so
the pruner is of f the ground and the chain will
not make contact with any object. Hold the
unitby handwhilerunningandmakingadjust-
ments. Keep allparts of your body awayfrom
the chain and muffler.
Idle Speed Adjustment
Allowenginetoidle.Adjustidlespeeduntilen-
gine runs without chain moving (idle too fast)
or stalling (idle speed too slow).
S Turn idle speed screw clockwise to in-
creaseenginespeedifenginestalls ordies.
S Turn idle speed screw counterclockwise to
decrease engine speed if chainmoves atidle.
WARNING: Recheck the idle speed
after each adjustment. The chain must not
move at idle speed t o avoid serious injury to
the operator or others.
Idle Speed Screw
Air Filter Cover
If you require further assistance o r are unsure
about performing this procedure, contact your
authorized service dealer or call
1--800--554--6723.