TM 9-2320-387-24-l
REFERENCE INFORMATION
TRANSMISSION SYSTEM
Procedure
for checkina
transmission
fluid
flUTUBE
DIPSTICK
1. Start engine.
2. Hold down brake pedal and move transmission shift lever through all ranges including
reverse. Leave the lever in each range for 2 seconds.
3. Engage parking brake and place shit lever in neutral. Check fluid level on dipstick.
4. Proper level is between FULL and ADD marks on dipstick
NOTE
Check fluid for a burnt smell, grit, discoloration, air
bubbles, or a milky appearance.
l Burnt smell, discoloration, or grit indicates worn or damaged internal components.
Notify DS maintenance
(chapter 14).
l Bubbles indicate an overfilled system or air leaks in the system. Drain the fluid and refill
to proper level (para. 5-2).
l Milky appearance is due to water in the system. Change the fluid and filter (para. 5-2).
l Check fill tube for indications of fluid being blown out. If fluid is being blown out, check
vent line for obstructions, and refill transmission to proper level (para. 5-2).
MARKINGS
Jload Test Procedure
u
1. Position shift lever in 0
(overdrive) and accelerate vehicle from 0 mph. A l-2.2-3.
and 3-4 shift should occur at all
i
throttle openings. Allow vehicle to coast down to about 0 mph; 4-3.3-2,
and 2-1 shifts should occur.
2. Position transmission shii lever in D (drive) and accelerate vehicle from 0 mph. A l-2 and 2-3 shift should occur at
all throttle openings. Allow vehicle to coast down to about 0 mph; 3-2 and 2-l shifts should occur.
3. Position transmission shi
lever in 2 (low two) and accelerate vehicle from 0 mph. A l-2 shift should occur at all
throttle openings. No 2-3 shitt can be obtained in this range. A l-2 shift in 2 is somewhat firmer than in D. This is
normal.
4. Position shift lever in 1 and accelerate the vehicle from 0 mph. No upshifts should occur in this range.
5. Position shift lever in 8,
and with the vehicle speed at approximately
45 mph, close throttle and move lever to 3.
Transmission should downshift to 3rd gear. An increase in engine rpm and engine braking effect should be
noticed.
6. Position shift lever in @, and with the vehicle speed at approximately
35 mph, close throttle and move lever to 2.
Transmission should downshift to 2nd gear. An increase in engine rpm and engine braking effect shordd be
noticed.
7. Position shift lever 2 and, with the vehicle speed at approximately
25 mph, close the throttle and move lever to 1.
Transmission should downshift to 1st gear. An increase in engine rpm and engine braking effect should be
noticed.
6. Position shift lever in R and check for reverse operation.
9. Hard shifting may be indicative of an under-filled or clogged system.
i
The TP sensor is used to shift the transmission to a
lower gear under heavy acceleration.
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