Craftsman 675 Series 247.77640 Operator's Manual

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Do notat any time makeanyadjustmentswithoutfirststoppingtheengine,disconnectingspark plugwire and groundingit againsttheengine.Alwayswearsafetyglassesduringoperationor while_performng anyadjustmentsor repars.WEDGE ASSEMBLY ADJUSTMENTAs normalwearoccursand thereisexcessive"play"betweenthewedgeand beam,adjustthe bolts on the sideof the wedgeassemblyto eliminateexcessspacebetweenthe wedgeand the beam.1. Loosenthejam nutson the two adjustmentboltson the sideof thewedge.See Figure16.AdjustmentBoltJam Nut ' Lock NutGibFLEXIBLE PUMP COUPLERTheflexiblepumpcoupleris a nylon"spider"insert,locatedbetweenthe pumpand theengine shaft.Overtime,the couplerwill hardenanddeteriorate.If you detectvibrationor noisecomingfromthe area be-tweenthe engineand the pumpcontactan authorizedservicedealer.If thecouplerfails completely,you will experiencea loss of power.TIRESThe maximumpressurefor thetires is 30 psi. Do not exceedthemanufacturer'srecommendedpsi underanycircumstances.MaintainExcessivepressurewhen seatingbeadsmay causethe tire/rimassemblyto burst with forcesufficientto causeseriousinjury.Refertcsidewallof the tire forthe recommendedpressure.Figure16. Turnthe adjustmentbolts in until snugand thenback them offslowly(approximately1.5turns) untilthe wedgeassemblywill slideon the beam.3. Re-tightenthe jam nuts securelyagainst theside of the wedgetosecurethe adjustmentboltsin this position.GIB ADJUSTMENTPeriodicallyremoveand replacethe"gibs"(spacers)betweenthewedgeassemblyand the back plate.NOTE:Thegibs maybe rotatedand/orturnedoverfor evenwear.1. Loosenthe lock nuts undereach back plateand slidethegibs out.See Figure16.2. Turnor replacethe gibs.3. Reassemblethe back plateand securewith the lock nuts.4. Readjustthebolts on the sideof the wedgeassembly.HOSE CLAMPS• Beforeeach usecheckall the hoseclampsto see if they are tight.14