Troubleshooting - Craftsman 536.886621 Owner's Manual

TROUBLE SHOOTING POINTS
TROUBLE
Difficult starting
Englne runs erratically
Engine stalls
Engine runs erratically;
Loss of power
Excessive vibration
Unit fails to propel
Itself
Unit fails to
dfaeharge snow
Heedllght does not work
CAUSE
Defective spark plug
Water or dirt in fuel system
Blocked fuel line or low on fuel
Unit running on CHOKE
Water or dirt in fuol system
Carburete_ out of adjustment
Loose parts; damaged impeller
Drive bolt loose or damaged
Incorrect adjustment of traclion
ddve cable
Worn or damaged frictionwheel
Auger drive belt loose or damaged
Augercontrol cablenotadjusted
co.ec_y
Shear bolt broken
Discharge chute clogged
Foreign object lodged in auger
Loose wire connection
Bulb burned out
CORRECTION
Replace defective plug.
Use carburetor bowt drain to flush and refill with fresh
fuel.
Clean fuel line: check fuol supply: add fresh
fuel (gasoline/oil mixture if 2 cycle engine).
Move choke lover to OFF position.
Use carbureter bowl drain to flush and refill with fresh
fuel.
Adjust carbureter,
Step engine immediately and disconnect spark plug wire.
Tighten all bolts and make all necessary repairs. If vibration
continues, have the unit serviced by a competent repairman.
Replace drive belt.
Adjust traction drive cable.
Replace frictionwhee}
Adjust auger drive belt: replace if damaged
Adjust auger control cable.
Replace shear bott
Stop engine =mmediately and disconnect spark plug wire
Clean discharge chute and inside of auger housing
Stop engine immediately and disconnect spark plug w_re
Remove object trom auger
T_ghtenconneclJon.
Replace headlight bulb
27