S e c t i o n V I .F I E L D E X P E D I E N T R E P A I R ST r o u b l e3 - 6 6 . G e n e r a l .Organizational maintenance level troubles may oc-cur while the engine generator set is operating inthe field where supplies andrepair parts are notavailable and normal corrective action cannot beperformed.When thiscondition exists, the follow-ing expedient repairs may be used in emergenciesuponthe decision of the unit commander.Equip-ment so repaired must be removed from operationas soon as possible and properly repaired beforebeing placed in operation again.3 - 6 7 . F u e l i s n o t S t r a i n e d .TroubleExpedient RemedyFuel tank strainerRunengine generator set,element defective.withdefective strainerelement installed untilreplacement is obtained( p a r a 3 - 3 4 ) .3 - 6 8 . H o u s i n g F i l l e d W i t h S m o k e .TroubleExpedient RemedyDefective exhaustpipe. Runengine generatorsetwith defective exhaustpipeuntil replacement is ob-tained ( p a r a 3 - 8 6 ) .3 - 6 9 . E n g i n e O v e r h e a t i n g .TroubleShutter control assemblynot operational.3 - 7 0 . L o s s o f C o o l a n t .TroubleLeaking coolant hose.Leaking radiator.Expedient RemedyIf the engine is runningtoo hot,manually openshutter with the lever tokeep shuttersopenuntilthe engine is normallyshutdown for n>ainten-ance or other reason.Expedient RemedyIf necessary shut downengine, draincoolant,tightly wrap leaky areaof hose with plastic elec -tricians tape. Keep moni-toring repaired hoseareawhile engine is operatinguntil replacement hose isobtained.Liberally apply epoxy, tar,putty, or other nonsolublesubstance to leaking areaof radiator.Let dry.Fill radiator and operateengine until replacementradiator is obtained.DoE x p e d i e n t R e m e d yWARNINGnot add coolant toradiator until pressurehasbeen relieved.Water pumpleaks.Loosen radiator cap so asto relieve pressure. Cont-inue engine operationadding coolant to radiatoras frequently as necessaryto maintain water levelabove top of radiator coilassembly until engine canbe conveniently shutdown for water pump re-placement.3 - 7 1 . E n g i n e H e a t U p .TroubleExpedient RemedyBadly wornfan belt.Continue engine operationwith defective fan beltinstalled until replacementbelt is obtained, or untilengine can be shut down.Frequently observe fanbelt ( P a r a 3 - 1 8 3 . )3 - 7 2 . E n g i n e C r a n k s B u t W i l l N o t S t a r t o r S t a r t sa n d R u n s E r r a t i c a l l y o r M i s f i r e s .TroubleClogged fuel filter.Clogged fuel transferpump screen.Defective fuel line.Expedient RemedyShut down engine and removefuel filter cartridge andstrainer element ( p a r a3 - 3 4 b ) . Usecompressedair, If available, or shakevigorously, to clear ob -struction. Reassemble andcontinue operation until re-placement partsare ob -tained.Shut down engine andremovepump screen ( p a r a 3 - 1 6 5 ) .Use compressed air, ifavailable, or shake vigor-OUSIY,to clear obstruction.Reassemble and continueoperation until replacementparts are obtained.Shut down engine andtightlywrap area of line leak withplastic electrician’s tape.Keep monitoring repairedline while engine isuntil a replacementis obtained.operatingfuel line3 - 2 7
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