Poulan SM446E instruction manual Maintenance

MAINTENANCE

WARNING: Disconnect the spark plug before performing maintenance except for carburetor adjustments.

HELPFUL TIP

IMPORTANT: Have all

repairs other than the rec- ommended maintenance described in the instruction manual performed by an authorized service dealer.

If any dealer other than an authorized service dealer performs work on the product, Poulan PRO may not pay for repairs under warranty. It is your re- sponsibility to maintain and perform general maintenance.

CHECK FOR LOOSE

FASTENERS AND PARTS

SSpark Plug Boot S Air Filter

S Housing Screws

S Assist Handle Screw

CHECK FOR DAMAGED OR WORN PARTS

Contact an authorized service dealer for re- placement of damaged or worn parts.

SON/OFF switch -- Ensure ON/OFF switch functions properly by moving the switch to the OFF position. Make sure engine stops;

then restart engine and continue.

SFuel tank -- Discontinue use of unit if fuel tank shows signs of damage or leaks.

SOil tank -- Discontinue use of unit if oil tank shows signs of damage or leaks.

INSPECT AND CLEAN UNIT AND LA- BELS

S After each use, inspect complete unit for loose or damaged parts. Clean the unit and labels using a damp cloth with a mild deter- gent.

SWipe off unit with a clean dry cloth.

CHECK CHAIN TENSION

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. Al- ways check chain tension each time you use and refuel 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.

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 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 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.

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.

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