TM 5-3805-262-203-4. ENGINE TROUBLESHOOTING (CONT) MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION6. ENGINE STALLS FREQUENTLY OR DOES NOT DEVELOP FULL POWER (Cont).Step 10. (Cont).B e f o r e p e r f o r m i n g f o l l o w i n g , b e s u r e t h a t t r a n s p o r t / s e r v i c e l i n k ise n g a g e d . F a i l u r e t o d o s o c o u l d c a u s e s e r i o u s i n j u r y o r d e a t h d u e tochassis pivoting and crushing you when you are working in area betweenfront and rear chassis.At left front of rear chassis, watch lever of parking brake mountedon transmission.Tell assistant to start engine, allow air pressure to build up, thempull out parking brake valve knob to apply parking brake. Check thatparking brake lever moves,Tell assistant to push in knob of parking brake valve to releaseparking brake while you watch parking brake lever.Check that parking brake lever moves.a. If parking brake lever does not move, remove and replace parkingbrake chamber (page 7-8).b. If parking brake lever moves, check parking brake linkage ad-justment (page 7-16), then go to step 11 below.Step 11. Remove drive belt from air compressor (page 7-96).Start engine, and check if engine power increases.Shut off engine.a. If engine power increases, remove and replace air compressor(page 7-88).b. If engine power does not increase, go to step 12 below.Step 12. Remove drive belts from fan,a l t e r n a t o r , a n d c r a n k s h a f t p u l l e y s(page 5-4).Start engine and operate at idle speed for three minutes maximum.Check if engine power increases; then shut off engine.a. If engine power increases, check fan and alternator pulleys forfreedom of rotation.I f a l t e r n a t o r p u l l e y i s s e i z e d o r d i f f i c u l t t o r o t a t e , r e m o veand replace alternator (page 5-10).If fan pulley is seized or difficult to rotate, remove and re-place water pump (page 4-94).3-31
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
