Craftsman 536.88644 manual Cause, Trouble, Difficult starting, Correction, Replace spark plug

Page 29

TROUBLE

Difficult starting

Engine runs erratic

Engine stalls

Engine runs erratic; Loss of power

Excessive vibration

CAUSE

Defective spark plug.

Water or dirt in fuel system.

Blocked fuel line, empty gas tank, or stale gasoline

Unit running on CHOKE.

Water or dirt in fuel system.

Loose parts: damaged impeller

CORRECTION

Replace spark plug.

Use carburetor bowl drain to flush and refill with fresh fuel.

Clean fuel line; check fuel supply; add fresh gasoline

Set choke lever to RUN )osition.

Use carburetor bowl drain to flush and refill with fresh fuel.

Stop engine immediately and disconnect spark plug wire. Tighten all bolts and make all necessary repairs. If vibration continues, have the unit serviced by a Craftsman service repairman.

Unit fails to propel itself

Unit fails to discharge

snow

Drive belt loose or damaged.

Incorrect adjustment of traction drive cable

Worn or damaged friction wheel.

Auger drive belt loose or damaged.

Auger control cable not adjusted correctly.

Shear bolt broken

Discharge chute clogged.

Replace drive belt.

Adjust traction drive cable.

Replace friction wheel.

Adjust auger drive belt; replace if damaged.

Adjust auger control cable.

Replace shear bolt

Stop engine immediately and disconnect spark plug wire. Clean discharge chute and inside of auger housing.

Foreign object lodged in

Stop engine

immediately and

auger

disconnect

spark plug wire.

 

Remove object from auger.

F-001087J29

Image 29 Contents
001087J IcrrftsmrniWash Hands After Handling EspanolPreparation TrainingDo not attempt to use snow thrower on a roof Maintenance and StorageSafetyWarningSymbols 4-20 SplitLockwasher11/32 Thrower Tools Required for AssemblyTo Remove Snow Thrower From Carton Remove from the carton Place until needed for storageLoosen, but do not To Assemble the Handle and Crank AssemblyCaught between the upper and lower handle Pin. Spread ends of cotter pin to To Install Shifter KnobUniversal DriveChecklist Snow Chute AssemblyHOW to SET the Skid Height Service And Adjustment sectionChoke Control Used to start a cold Know Your Snow ThrowerTo Stop Your Snow Thrower HOW to Move Forward and BackwardTo USE Wheel Lockout PIN To Control Snow DischargeDicates that alcohol blended Before Starting the EngineFill GAS To Start Engine To Stop EngineElectric starter, if equipped Cold StartWarm Start Do not prime if temperature above 50 F 10 CEngine runs smoothly, move choke lever to No Choke Position Frozen Starter001087J16 Snow Throwing TipsCustomer Responsibilities Lubrication ChartGeneral Recommendations After Each USEAS Required Product SpecificationsLUBRICATION-EVERY 25 Hours Wheel and disc drive plateTo Change Engine OIL LubricationSpark Plug 001087J19To Adjust Scraper BAR To Adjust Skid HeightDrive Lever HOW to Check and Adjust CablesTo Adjust Belts To Replace Belts How To Remove The Auger Drive BeltTraction Drive Belt Side/ %Traction Drive Belt Outdoors, away from fire orBelt AugerHOW to Adjust the Belt Guide HOW to Adjust or Replace the Friction WheelHow To Check The Friction Wheel Remove Top Bolt each side How To Replace The Friction Wheel To Adjust the Carburetor HOW to Replace the Auger Shear BoltTo Adjust or Replace the Spark Plug To adjustTo Replace Engine Thoroughly clean the snow throwerOther Provide maximum performance for the next seasonTrouble CauseDifficult starting CorrectionScrew Frame AssemblyWasher 001087J30Motor Starter Electric Start AssemblyCOVER, Bottom Idler AssemblyFrame Assy Case Gear Gear Case AssemblySEAL, OIL Bearing190 191 Drive Components217 255246 245247 2495OO Auger Housing Assembly9517 711862 9357 301380-853 340720 710026 760875 48O PULLEY, 4L 6.12XCraftsman Discharge Chute AssemblyWasher Plastic OO1087J40 Handle Assembly756 73O671 655 650 678 Wheel Assembly791 792 8812 Shift Yoke Assembly866 Chute Control ROD Assembly867 Decal Auger Clutch Symbol Decal Drive Clutch SymbolModel Plate Decal Chute HandCraftsman 4-CYCLE Engine Model Number KEY Part Description RPM KEY Part NO. no27677A 650139KEY Part Lill IllIOA Retainer Ring 33290E Electric Starter VoltSpring Retainer Anti-drift SpringOO1087J52 KEY Part Description Idhhhh Part