Craftsman 247.770990 Operator's Manual page 21

Problem Cause Remedy
Enginefails
to
start
' 1. Throttlelevernot in correctstartingposition• 1. Movethrottleleverto FASTor STARTposition.
2. Sparkplug wiredisconnected. 2. Connectwireto sparkplug.
3. Chokenot in ONposition. 3. MoveCHOKEto ONposition.
4. Fueltank emptyor stalefuel• 4. Filltank with clean,fresh gasoline•
5. Cannotpull recoilcord• 5. Obstructionlodgedin mpeller.D sconnect
sparkplug wire and removelodgedobject,
6 Fault s ark lu 6 Cean adjustgap orrepace
• yp Pg. . .
7 Safetyswtch not depressed 7. Safetyswitchmustbe depressedby the front
• - - ' tab on the bag hande whensecur ngthe bag
I
' 8. Connectsafety switchwire to engineconnec-
8. Safetyswitchwire is notconnectedto engine tor and groundto mountingbracket.
• or not properlygrounded.
Engine runs erratic
1. Sparkplug wireloose. 1. Connectand tightenspark plug wire.
2. Unit runningon CHOKE.
3. Blockedfuel line or stale fuel.
4. Lowengine RPM.
5. Wateror dirt in fuel system.
6. Dirty air cleaner.
2. Movechoke leverto OFF position.
3. Cleanfuel line;fill tank with clean,
freshgasoline.
4. Alwaysrun engineat fullthrottle.
5. Drainfueltank. Refillwith
freshfuel.
6. Cleanor replaceair cleaner.
7. Carburetoroutof adjustment. 7. ContactyourSearsParts & RepairCenter.
Engineoverheats
!:Eng in_ Oi!levellow 1: Fi!l crankcase Withproperselectiond oi!,
I 2: Dirtyair €!eane!i c!eai °! !epla!e ai! €leaie['
3. Carburetornotadjustedproperly. 3. Contactyour SearsParts& RepairCenter.
Occasional skips
1. Sparkplug gap tooclose. 1. Adjustgap to .030".
(hesitates)
at 2. Carburetoridle mixtureadjustmentimproperly 2. ContactyourSearsParts & RepairCenter.
high speed set.
. . . _ , 1 Stopeng nemmed atey and d sconnect
ExcessiveVibration
1. Looseparts or damagedimpeller. ' : ,, : . _ _ , .
sparkpug w re_uomacty0ur _ears varts e.
RepairCenter.
Unit does not dis-
1. Dischargeareaclogged. 1. Stopengine immediately and disconnect
charge
spark plugwire. Cleanflailscreenand inside
of dischargeopening.
2. Stopengineand disconnectspark plug wire.
2. Foreignobject lodgedin impeller. Removelodgedobject.
3. LowengineRPM. 3. Alwaysrun engineat fullthrottle.
4. Vacuumbag is full. 4. Emptybag.
Rateof discharge !
LowengineRPM. !: A!waYs run engineatfu!!thrott!e.
SlowsCOnsiderab!y 2. Chipperbladedul.
2. ReplacechiPPerb!adeor contactyoursears
or Compositionof Parts
&Repa
r Center I
d scharged mater a I
changes •
Unit fails to propel itself
1. Drivecontrolcableout of adjustment. 1. Followadjustment p rocedurein Serviceand
or slips when drive Adjustments
sectionof manual.
control is engaged
2. Drive beltwornor damaged. 2. ContactyourSearsParts & RepairCenter.
NOTE: For repairs beyond the minor adjustments listed above, please contact your local Sears Parts & Repair Center.
21