Step 9. - TM-5-3805-262-20

S t e p 8 . ( C o n t ) - TM-5-3805-262-20_99

TM-5-3805-262-20 Loader Scoop Type DED 4x4 Articulated Frame Steer 2-1/2 Cubic Yard (J.I. Case Model MW24C) Manual
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TM 5-3805-262-20 3-4. ENGINE TROUBLESHOOTING (CONT) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 6. ENGINE STALLS FREQUENTLY OR DOES NOT DEVELOP FULL POWER (Cont). S t e p 8 . ( C o n t ). a. If engine speed is 1430 rpm minimum, engine, torque converter and transmission, and hydraulic system are probably okay. Reconnect tachometer cable to engine tachometer drive (page 5-67). Go to step 10 below. b. If engine speed is not 1430 rpm minimum, go to step 9 below. Step 9. Start engine and operate at idle speed. Release parking brake and place transmission control lever in H p o s i t i o n. Press and hold down brake treadle and valve pedal for remainder of t e s t . P r e s s a c c e l e r a t o r p e d a l f u l l y . Press tachometer against engine tachometer drive shaft. Tell assistant to watch thermometer of temperature probe installed in transmission elbow. When transmission temperature reaches 200 degrees F and tachometer pointer stops moving, record engine speed as indicated by tachometer p o i n t e r . Engine tachometer drive shaft operates at half engine speed. Double tachometer indication to obtain engine rpm. Engine speed should be 2000 to 2100 rpm using number 2 Diesel fuel and 1900 to 2000 rpm using number 1 Diesel fuel. Release accelerator pedal and place transmission control lever in N p o s i t i o n. Allow engine to operate at idle speed for 3 minutes then shut off engine. a. If engine speed is 2000 to 2100 rpm using number 2 Diesel fuel or 1900 to 2000 rpm using number 1 Diesel fuel, engine and torque converter and transmission are probably okay. Problem is in hydraulic system; notify next higher maintenance level to perform hydraulic system flowmeter checks to locate problem. b. If engine speed is not 2000 to 2100 rpm using number 2 Diesel fuel or 1900 to 2000 rpm using number 1 Diesel fuel, problem is in engine. Reconnect tachometer cable to engine tachometer drive (page 5-67). Go to step 10 below. Step 10. Put transport/service link in engaged position if not already in engaged position (page 9-8). 3-30

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