TM 5-3805-298-23-1
0077
Table 1. Transmission Does Not Operate in First, Second, or Third Gear, Forward - Continued.
077
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 3. Check Transmission Oil.
Transmission Does Not
1. Turn battery disconnect switch ON
Operate in First, Second, or
and start engine (TM 5-3805-298-
Third Gear, Forward -
10).
Continued
2. Run engine at low idle (825 rpm)
until transmission is warm.
3. Check transmission oil level in
Transmission Oil Level Is Between
Low Mark and High Mark - Proceed
sight gauge (TM 5-3805-298-10).
to step 4.
Transmission Oil Level Is Below
Low Mark - Add transmission oil
through filler tube opening until level is
between low and high mark (TM 5-
3805-298-10).
Proceed to Test Step 6.
Transmission Oil Level Is Above
High Mark - Drain transmission oil
until level is between low and high
mark (WP 0312).
Proceed to Test Step 6.
4. Visually inspect transmission oil in
Air Bubbles Present in
sight gauge for air bubbles.
Transmission Oil - Proceed to step 5.
No Air Bubbles Present in
Transmission Oil - Proceed to Test
Step 4.
5. Visually inspect output hose of the
Transmission Pump Hose Is Not
transmission pump for Class III
Leaking - Proceed to step 6.
leaks (WP 0173). Check the
Transmission Pump Hose Is
ground for signs of leakage.
Leaking - Tighten or replace
transmission pump supply hose (WP
0173).
Proceed to Test Step 6.
6. Visually inspect filter hoses of
Transmission Filter Hoses Are Not
transmission for Class III leaks
Leaking - Proceed to step 7.
(WP 0316). Check the ground for
Transmission Filter Hoses Are
signs of leakage.
Leaking - Tighten or replace
transmission filter hoses (WP 0316).
Proceed to Test Step 6.
0077-3
