Poulan Pro PPB5000P Manual De Instrucciones página 10

CHECK CHAIN T ENSION
_ WARNING:
Wear protective gloves
when handling chain. The chain is sharp and
can cut you even when it is not moving. Make
chain adjustments with lower end supported.
Chain tension is very important. Chains
stretch during use. This is especially true dur-
ing the first few times you use your pruner. AF
ways check chain tension each time you use
and refuel your unit.
1. Use a screwdriver 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.
Adjusting Screw Bar clamp nut
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 a screwdriver, 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 a wrench.
7. Use a screwdriver 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 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.
ill
m_WARNING:
DO NOT operate the
pruner if the chain is loose. If the pruner is op-
erated with a loose chain, the chain could
iump off the guide bar and result h_serious in-
jury.
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, ensure ON/OFF switch is in
the OFF position, then clean all sawdust from
the guide bar and sprocket hole.
To maintain guide bar:
• Move ON/OFF switch to the OFF position
and disconnect spark plug (or disconnect
powerhead from power source).
• Loosen and remove bar clamp nut and
chain brake. Remove bar and chain from
pruner.
• Clean the oil holes and bar groove after
each 5 hours of operation.
Remove Sawdust From _I_
Guide Bar Groov__ _ _
Oii Holes o
• Burring of guide bar rails is a normal
process of rail wear, Remove these burrs
with a flat file,
• When rail top is uneven, use a flat file to re-
store square edges and sides.
_1"_ File Rail Edges_r] [1
and Sides I U I
Square ] ]
Worn Groove Correct Groove
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
Fill Cap
• See GUIDE BAR AND CHAIN OIL under
the OPERATION section.
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