TEST OR INSPECTION
APU - CONT
Check for odor of fuel or oil mixed in engine coolant.
Remove radiator and check engine water jacket for corrosion.
b. If above steps do not correct malfunction, replace APU
BATTERY WILL NOT HOLD CHARGE
Check electrolyte level and specific gravity in each cell.
a. Replenish battery cells to proper level with distilled
b. Check battery electrolyte for improper specific gravity
with hydrometer (item 17, appx. B). Charge or replace
Check for fan belt slippage (excessive wear or noisy operation).
Check for noisy or vibrating fan dynamo.
Check APU harness for breaks, corrosion, and burns on harness.