Poulan 545117550 Manuel d'utilisateur télécharger pdf (Page 14)

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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 ADJUSTM E NT S secti o n .

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 dif ficult.

After each use, with unit disconnected from

power sourc e, 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 GrooveWorn 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.

LUBRICA TION

Bar Oil

Fill Cap

S See GUIDE BAR AND CHAIN OIL under

the OPERA TION section.

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