Craftsman 247.77640 Operator's Manual page 15

Do notat any time makeanyadjustmentswithoutfirststopping
theengine,disconnecting spark plugwire and groundingit against
theengine.Alwayswearsafetyglassesduringoperationor while
_performng anyadjustmentsor repars.
WEDGE ASSEMBLY ADJUSTMENT
As normalwearoccursand thereis excessive"play"betweenthe
wedgeand beam,adjustthe bolts on the sideof the wedgeassembly
to eliminateexcessspacebetweenthe wedgeand the beam.
1. Loosenthejam nutson the two adjustmentboltson the sideof
thewedge.See Figure16.
AdjustmentBolt
Jam Nut
' Lock Nut
Gib
FLEXIBLE PUMP COUPLER
Theflexiblepumpcoupleris a nylon"spider"insert,locatedbetween
the pumpand theengine shaft.Overtime,the couplerwill hardenand
deteriorate.If you detectvibrationor noisecomingfromthe area be-
tweenthe engineand the pumpcontactan authorizedservicedealer.
If thecouplerfails completely, y ou will experience a loss of power.
TIRES
The maximumpressurefor thetires is 30 psi. Do not exceedthe
manufacturer's recommended psi underanycircumstances. M aintain
equal pressureon all tires.
Excessivepressurewhen seatingbeadsmay causethe tire/rim
assemblyto burst with forcesufficientto causeseriousinjury.Refer
to sidewallof the tire for the recommended pressure.
Figure16
2. Turnthe adjustmentbolts in until snugand thenback them off
slowly(approximately 1.5turns) untilthe wedgeassemblywill
slideon the beam.
3. Re-tightenthe jam nuts securelyagainst theside of the wedgeto
securethe adjustmentboltsin this position.
GIB ADJUSTMENT
Periodicallyremoveand replacethe"gibs"(spacers)betweenthe
wedgeassemblyand the back plate.
NOTE:The gibsmay be rotatedand/or turnedoverfor evenwear.
1. Loosenthe lock nuts undereach back plateand slidethegibs
out. See Figure16.
2. Turnor replacethe gibs.
3. Reassemble the back plateand securewith the lock nuts.
4. Readjustthebolts on the sideof the wedgeassembly.
HOSE CLAMPS
Beforeeach usecheckall the hoseclampsto see if they are tight.
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