TM 5-3820-245-14&P
5-2. FUNK TRANSMISSION TROUBLE SHOOTING (Continued)
Because of the rapid rise in oil temperature, the stall condition should be maintained only long enough for the tachometer
reading to stabilize. Five seconds is usually adequate time for an accurate reading. Under no circumstances should the
stall period exceed 30 seconds at a time. Between test, run the engine for at least two (2) minutes at 1200 R.P.M. with
the Revers-O-Matic in neutral. This will permit the converter oil to flow into the oil cooler and back to the transmission
sump.
Never disassemble any hydraulic fitting or connection until the pressure gauge on the instrument panel has returned to a
zero (O) pressure reading.
CONDITION
PROBABLE CAUSE
REMEDY
Low engine
A. Engine low output
Tune engine and check output.
speed at
converter
stall.
B. Converter element
Listen for noise at stall,
overhaul converter.
C. Improper starter
Disassemble converter and
installation.
examine parts affected, making
sure starter is not in back-
wards.
High engine
A. Low oil level.
Fill with transmission oil.
speed at
converter
B. Low converter out
Check for leaks. Disassemble
stall.
pressure.
the third regulator valve
(front right side) by first
removing the oil temperature.
Line inspect all parts and
reassemble.
C. Clogged lines.
Clean as required.
D. Bad oil pump.
Replace pump.
E. Clutch slippage.
Rebuild clutch.
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