Service And Adjustments; Clean Under Engine Cover; To Remove/Replace Trimmer Head Drive Belt - Craftsman 917.77341 Owner's Manual

CLEAN UNDER ENGINE COVER
Clean under engine cover before each
use, or more frequently in heavy cutting
or dirty conditions. Engine cover screen
and engine air intake screen must be
kept free of dirt and chaff to prevent
engine damage from overheating.
Knob Engine
cover
• Unscrew knob on top of cover.
• Lift cover up and away from engine.
• Clean cover and cover screen thor-
oughly.
• Clean top of engine and air intake
screen.
• Replace engine cover and tighten
knob securely. Be sure the front tabs
engine cover are located in the slots
engine housing.
Threaded
Engine
cover
screen
Starter
rope
Air intake screen
Housing
slots
_1, CAUTION: Before performing any
service and adjustments:
• Stop engine.
• Make sure the rotating lines and all
moving parts have completely stopped.
• Disconnect spark plug wire from spark
plug and place where it cannot come in
contact with plug.
TRIMMER
TO REMOVE/REPLACE TRIMMER HEAD
DRIVE BELT
• Remove screw at front of chassis cover.
• Lift cover up and away from trimmer.
• Turn trimmer on its side with carburetor and
fuel cap up.
• Remove belt from engine pulley on
crankshaft.
• Remove belt from trimmer head pulley.
• Remove idler assembly from chassis
and remove belt and idler from trimmer.
• Remove belt from idler assembly by
removing bottom belt keeper and idler
pulleys.
• Assemble new belt, idler pulleys and
bottom belt keeper to idler bracket.
Tighten pulley bolts securely.
• Be sure belt is inside top belt keeper on
idler assembly.
• Position belt and idler assembly in
trimmer and assemble idler to chassis.
Tighten securely.
• Install belt around trimmer head pulley
and engine pulley.
• Replace chassis cover and tighten screw
securely.
• Always use Craftsman replacement parts
to assure proper fit and long life.
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