Poulan 810 EP - Manual (Page 14)

14
few times you use your pruner. Always check
chain tension each time you use 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. Loosen bar clamp nut until it is finger tight
against the bar clamp.
Bar clamp nut Adjusting Screw
3. Turn adjusting screw clockwise until
chain solidly contacts bottom of guide bar
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 groove.
5. Lift up tip of guide bar to check for sag.
Release tip of guide bar, then turn adjust-
ing screw 1/4 turn clockwise. Repeat until
sag does not exist.
6. While lifting tip of guide bar, tighten bar
clamp nut securely with the bar tool.
7. Use the screwdriver end of the bar tool to
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 counter-
clockwise. 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 the pruner is oper-
ated with a loose chain, the chain could jump off
the guide bar and result in serious injury.
CHECK CHAIN SHARPNESS
A sharp chain makes wood chips. A dull chain
makes a sawdust powder and cuts slowly.
See CHAIN SHARPENING in the SERVICE
AND ADJUSTMENTS section.
BAR MAINTENANCE
If your pruner cuts to one side, has to be
forced through the cut, or been run with an im-
proper amount of bar lubrication it may be
necessary to service your bar. A worn bar will
damage your chain and make cutting difficult.
After each use, with unit disconnected from
power source, clean all sawdust from the
guide bar and sprocket hole.
To maintain guide bar:
S
Disconnect pruner from power source.
S Loosen and remove bar clamp nut and
chain brake. Remove bar and chain from
pruner.
S Clean the oil holes and bar groove after
each 5 hours of operation.
Remove Sawdust From
Guide Bar 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 rail top is uneven, use a flat file to re-
store square edges and sides.
Correct Groove Worn Groove
File Rail Edges
and Sides
Square
Replace guide bar when the groove is worn,
the guide bar is bent or cracked, or when
excess heating or burring of the rails occurs. If
replacement is necessary, use only the guide
bar specified for your pruner in the repair
parts list.
LUBRICATION
Bar Oil
Fill Cap
S See GUIDE BAR AND CHAIN OIL under
the OPERATION section.