TM 5-2410-240-23-1
0020
Table 1. Powertrain and Chassis Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Low Top Speed - Contin- 1. Check undercarriage for exces-
Debris Found - Clean debris from
ued
sive load and inspect for debris.
undercarriage.
No Debris Found - Proceed to
Step 2.
2. Inspect hydraulic system for
Class lll Leak or Damage Found -
Class lll leakage and damage.
Repair leaks or damaged hose. (WP
Hydraulic lines must be free from
0110).
kinks and sharp bends.
No Class III Leak or Damage Found
- Proceed to step 3.
N OT E
Wait at least 30 seconds for diagnostic codes to become active.
3. Connect MSD (WP 0016). Select
Codes Found - Troubleshoot any
machine control ECM and check
active codes before continuing with
for diagnostic codes (WP 0013).
this procedure.
No Codes Found - Proceed to step 4.
4. Verify that symptom is active.
Symptom Not Active - Change
Symptom not active - hydraulic oil
hydraulic oil (WP 0160) and oil filter
could be contaminated.
elements (with ripper WP 0163) (with
winch WP 0164). Operate machine.
Symptom Active - Proceed to step 5.
5. Check hydrostatic pumps and
Pumps and Motors OK - Proceed to
motors for efficiency. Perform
Step 6.
Hydrostatic Pump and Motor
Pumps and Motors Not OK -
Efficiency Test (WP 0031).
Replace affected pumps or motors.
(WP 0126, WP 0133, WP 0134, WP
0135).
Hydraulic Oil Temperature Above
6. Inspect hydrostatic system
Specified Value - Inspect cooling
temperature during operation.
system for blockage and restrictions.
Hydraulic oil temperature should
Refer to Cooling System Inspection
be less than 203F (95C).
Hydraulic Oil Temperature Not
Above Specified Value - Return
machine to service.
0020-4
