TM 5-3800-205-23-1
TROUBLESHOOTING PROCEDURES - CONTINUED
0007 00
Table 10. Transmission Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Transmission Shifting is Rough - Continued.
4. Check operation of pressure
a. If pressure differential valve
differential valve.
is inoperative, replace valve.
b. If problem still exists, go to
test step 5.
If springs are damaged or weak,
5. Check pressure control valve
replace pressure control valve.
springs for damage or
weakness.
a. If any damage or wear was
5. Transmission Does Not Operate in any
1. Check oil pump and oil pump
found,
notify
DS
Speed.
drive for damage or wear that
Maintenance to replace oil
would cause low oil pressure.
pump and oil pump drive
b. If problem still exists, go to
test step 2.
2. Check inlet side of oil pump
a. Notify DS Maintenance to
for air leaks.
repair any air leaks to inlet
side of oil pump.
b. If problem still exists, go to
test step 3.
NOTE
Prior to removing major assembly, contact SRA for further troubleshooting information and/or
technical assistance. For SRA support, contact the local Caterpillar dealer (WP 0175 00).
a. Reset modulation relief valve
3. Check primary pressure
primary setting. If problem
setting of modulation relief
still exists, go to test step b.
valve.
b. Replace modulation relief
valve.
c. If problem still exists, go to
test step 4.
4. Check operation of pressure
a. If pressure control valve is
control valve.
inoperative, replace pressure
control valve.
b. If problem still exists, go to
test step 5.
