LOSS OF POWER CONTINUED

TM 9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

42. LOSS OF POWER CONTINUED.

Check all brakes (1) for locked or damaged parts (page 4-609).

Step 4.

If brakes are locked or damaged, replace or repair (page 4-609).

NOTE

Temperature, altitude, engine accessory loss variations, etc., all affect power input to

converter. These conditions may cause stall speed to vary + 150 rpm from established

normal value. When deviations do not exceed 50 rpm and can be attributed to such

causes, actual speed can be accepted as normal.

While observing tachometer, position truck in clear area with adequate

Step 5.

room to regain control in case of runaway. Block all wheels (2) and

start engine. Bring truck to full operating temperature and pressure.

Apply parking and service brakes. Put transmission in low gear and accelerate

engine to full throttle. Note maximum rpm engine will attain.

a. If maximum rpm is below 1,924 + 150, go to Troubleshooting

ENGINE LACKS POWER (page 3-20).

b. If maximum rpm is above 1,924 + 150, notify direct support

maintenance.

TA239703

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