(1) Check transmission oil cooler for leaks
(a) If transmission oil cooler is
leaking or damaged, replace
cooling assembly (Para 6-3).
(b) If transmission oil cooler is not
leaking or damaged, perform
Steps (2) through (6) below.
(2) Remove radiator cap
(3) Observe coolant for transmission oil,
indicating transmission oil cooler leak.
(a) If transmission oil cooler is leaking
into radiator, notify DS
(b) If transmission oil is not leaking
into radiator, perform Steps (4)
through (6) below and go to
Step 5 of this Fault.
(4) Install radiator cap.
(5) Install left side noise panel, eight
washers, lockwashers and screws.
(6) Install right side noise panel
Hot transmission oil can cause severe burns and injury to personnel. Transmission should be allowed
to cool before oil is drained.
Use extreme care when removing the radiator pressure cap. Sudden release or pressure can cause a
steam flash which could seriously injure personnel. Slowly loosen cap to the first stop to relieve
pressure before removing cap completely. After use, securely tighten cap.
(1) Start engine (TM 9-2320-364-10).
(2) Operate truck at normal speeds to
verify if transmission overheats.
(3) Observe transmission
(a) If gage reads over 220°F (104°C),
fault not corrected. Perform
Step (4) below and notify DS
(b) If gage reads under 220°F
(104°C), fault has been corrected.
(4) Turn OFF ENGINE switch.
Transmission oil cooler is contained inside
radiator bottom tank.