TM 5-3805-293-23-2
0021
Table 1. Chassis Troubleshooting.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Temperature of Hydrau-
1. Connect MSD (WP 0006) and
Diagnostic or Event Codes Are
lic Oil is Too Hot
select Implement 120M ECM, and
Active - Repair diagnostic code
check for any active diagnostic or
(WP 0010).
event codes.
Diagnostic or Event Codes Are
NOT Active - Proceed to step 2.
2. Inspect hydraulic oil for correct
Oil Level Low - Fill hydraulic tank (LO
level and type (LO 5-3805-293-
5-3805-293-13) and perform oil con-
13).
figuration (WP 0217).
Oil Incorrect for Operating Condi-
tions - Drain and refill hydraulic tank
(WP 0217) and replace hydraulic filter
(WP 0208). Perform oil configuration
(WP 0217).
Machine Operating During High
3. Verify machine is not operating at
Ambient Temperatures - Allow
high system loads during high
machine to cool before resuming
ambient temperature
operation.
(TM 5-3805-293-10).
Machine Operating During High
System Loads - Reduce system load
during operation.
4. Start and run machine (TM 5-
3805-293-10).
5. Check hydraulic oil for bubbles in Bubbles Identified - Replace dam-
level indicator (bubbles can be
aged/leaking lines (WP 0133).
caused by leaking components)
No Bubbles - Proceed to step 6.
while machine is running. Inspect
for visible Class III leaks at all
hydraulic connections and tighten.
6. Check for kinked and damaged
Kinks or Damage Found - Replace
hydraulic lines.
kinked or damaged hydraulic lines
(WP 0133).
7. Perform Margin Pressure Adjust-
Pressure Cannot Be Adjusted or
ment (WP 0044).
Remains Low - Replace implement
steering pump control valve (WP
0121).
Pressure OK or Was Adjusted - Pro-
ceed to step 8.
8. Check pump signal relief control
Pressure Readings Do Not Change
- Replace signal resolver (WP 0246).
valve for proper setting, perform
Proceed to step 9.
Signal Resolver Test (WP 0044).
Pressure Readings Change - Trou-
bleshooting complete, proceed to
step 9.
9. Start and run machine (TM 5-
3805-293-10) to verify malfunc-
tion has been corrected.
