Poulan 530163467 Manuel d'utilisateur télécharger pdf (Page 11)

11

SERVICE AND ADJUSTMENTS

WARNING: Always stop unit and dis-

connect spark plug wire (or disconnect pow-

erhead from power source) before performing

maintenance, service, or adjustm ents except

for carburetor adjustments.

CHAIN SHAR PENING

Chain sharpening is a complicated task that

requires special tools. We recommended you

refer chain sharpening to a professional chain

sharpener.

CHAIN REPLACEMENT

WARNING: Wear protective gloves

when handling chain. The chain is sharp and

can cut you even when it is not moving.

It is normal for a new chain to stretch during the

first 15 minutes of operation. Y ou should re-

check your chain tension frequently and adjust

the chain tension as required. See CHAIN TEN-

SION section.

Replace the old chain when it becomes worn or

damaged. Use only the Low-Kickback replace-

ment chain specified in the repair parts list.

TO REPLACE CHAIN:

1. Move ON/OFF switch to the OFF position

and disconnect spark plug (or disconnect

powerhead 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 F ACE IN

DIRECTION OF ROT ATION

Tip of

Bar

Cutter

Drivelink

Cutters

Depth Gauge

Drive Links

8. Place chain over sprocket, fitting the drive

links in the sprocket.

9. Fit bottom of drive links between the teeth in

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

in guide bar groove. Ensure all drive links

are in the bar groove.

12. Now, install bar clamp making 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 ADJ UST MENT

See CHECK CHAIN TENSION in MAINTE-

NANCE section.

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