TROUBLESHOOTING - CONTINUED
TEST OR INSPECTION
42. LOSS OF POWER CONTINUED.
Check all brakes (1) for locked or damaged parts (page 4-609).
If brakes are locked or damaged, replace or repair (page 4-609).
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
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