TM 9-2320-363-20-1
Table 3-1. Troubleshooting (Cont)
Malfunction
Test or inspection
Corrective action
ELECTRICAL SYSTEM (CONT)
Auxiliary Heater Circuits (Cont)
6. CAB HEATER HIGH-SPEED FAN DOES NOT OPERATE, LOW-SPEED FAN OPERATING
NORMALLY.
Disconnect lead 58A from line disconnect to cab heater fan. Check for +24 VDC at
lead 58A.
If +24 VDC is present, replace cab heater fan (notify direct
support maintenance). If no voltage is present, repair lead 58A
(page 3-2).
7. CAB HEATER LOW-SPEED FAN DOES NOT OPERATE, HIGH-SPEED FAN OPERATING
NORMALLY.
Disconnect lead 58B from line disconnect to cab heater fan. Check for +24 VDC at
lead 58B.
If +24 VDC is present, replace cab heater fan (notify direct
support maintenance). If no voltage is present, repair lead 58B
(page 3-2).
TRANSMISSION
1. TRANSMISSION OIL TEMPERATURE GAGE CONTINUOUSLY READS OVER 2500F.
Step 1.
Check transmission fluid level.
Add or drain transmission fluid as required (page 2-3, Unit PMCS).
Step 2.
Check for any kinked or damaged transmission cooler hoses and connections
that would cause flow restriction.
Replace any kinked or damaged hoses or connections
(page 4-356).
Step 3.
If problem still exists, notify direct support maintenance.
2. TRANSMISSION WILL NOT SHIFT INTO GEAR, OR ROUGH SHIFTING.
Step 1.
Check transmission fluid level.
Add or drain transmission fluid as required (page 2-3, Unit PMCS).
3-80 Change 3
