TM 5-3805-293-23-2
0021
Table 1. Chassis Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. Steering Does Not Work,
3. Inspect for Class III leaks at the
Leaks Identified - Tighten or replace
But Implements Do Work
hydraulic tank and hydraulic fan
leaking hydraulic lines (WP 0133).
- Continued
steering pump.
Kinks or Damage Found - Replace
4. Check steering system lines
(0133) for kinks and damaged.
kinked or damaged steering system
lines (WP 0133).
5. Perform the Signal Resolver Test
Pressure Readings Did Not Change
(WP 0044).
- Replace signal resolver (WP 0246).
Pressure Readings Change - Pro-
ceed to step 6.
6. Check signal relief valve for
Signal Relief Valve Does Not
proper cycling, perform Adjust-
Respond Correctly - Perform adjust-
ment for Signal Network (WP
ment in test as directed. If signal relief
0044).
valve cannot be adjusted, replace sig-
nal relief valve (WP 0227). Proceed to
step 7.
Symptom Remains - Replace steer-
ing control valve (WP 0242). Proceed
to step 7.
7. Start and run machine (TM 5-
3805-293-10) to verify malfunc-
tion has been corrected.
10. Machine Does Not Turn
1. Perform Control Manifold
Wheels Do Not Move Left Or Right
When Secondary Steer-
(Steering Backup) Test (WP
When Directed, No Diagnostic
ing is Activated
0044).
Codes Active - Proceed to step 2.
Wheels Do Not Move Left or Right
When Directed, Diagnostic Codes
Active - Diagnose Codes (WP 0010).
2. Perform Relief Valve (Secondary
System Does Not Respond Cor-
Steering) - Test (WP 0044).
rectly - Perform repairs as directed in
test.
System Still Does Not Respond
Correctly - Replace secondary steer-
ing backup valve (WP 0168).
11. Excessive Drift in Sec-
Check for contamination in hydraulic
Hydraulic Oil Is Contaminated - Ser-
ondary Steering System
oil.
vice hydraulic oil (WP 0169) and
replace hydraulic oil filter (WP 0164).
Perform oil configuration (WP 0217).
Hydraulic Oil OK - Replace main
steering control valve (WP 0186).
0021-8