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BAR MAINTENANCE
If your pruner cuts to one side, has to be
forcedthroughthecut,or beenrunwithanim-
proper amount of bar lubrication it may be
necessary toserviceyourbar. Awornbarwill
damageyour chain andmake cuttingdifficult.
After each use, with unit disconnected from
pow er source, clean all sawdust from the
guide bar and sprocket ho le.
To maintain guide bar:
S Disconnect p runer from power source.
S Loosen and rem ove bar clamp nut and
chain brake. Remove bar and chain from
pruner .
S Clean the oil holes and bar groove a fter
each 5 hours of oper ation.
Remove Sawdust From
Guide B ar Groove
Oil Holes
S Burring of guide bar rails is a normal
process of rail wear. Remove these burrs
with a flat file.
S When railtop isuneven, use a flatfile tore-
store square edges and sides.
Correct GrooveWorn Groove
File Rail Edges
and Sides
Square
Replace guidebar when thegroove is worn, the
guide bar is bent or cracked, or when excess
heating o r burring of the rails occurs. If replace-
mentis necessary,useonly theguide barspeci-
fied for your pruner in the repair parts list.
LUBRICA TION
Bar Oil
Fill Cap
S See GUIDE BAR AND CHAIN OIL under
the OPERATION section.
SERVICE AND ADJUSTMENTS
WARNING: Disconnect unit from
power source before performing service or
making adjustments.
CHAIN SHARPENING
Chain sharpening is a complicated task that
requires specialtools.Werecommendedyou
referchainsharpeningtoaprofessionalchain
sharpener.
CHAIN REPLACEMENT
WARNING: Wear protective gloves
when handling chain. The chain is sharp and
can cut you e ven when it is not moving.
It is normal for a new chain to stretch du ring the
first 15 minutes of operation. Y ou should re-
check your chain tension frequently and adjust
thechain tensionas required.See CHAINTEN-
SION section.
Replace the old chain when itbecomes worn or
damaged. Use only the Low-Kickback replace-
ment chain specified in the repair parts list.
TO REPLACE CHAIN:
1. Disconnect pruner from power source.
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. Placechainoversprocket,fittingthedrive
links in the sprocket.
9. Fitbottom o f drive links between the teethin
the sprocket in the nose of the guide bar .
10. Fit chain drive links into bar groove.
11. Pull guide bar forward until chain is snug
inguidebar groove. Ensure alldrivelinks
are in the bar groove.