TM 5-2410-240-23-1
0020
Table 1. Powertrain and Chassis Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Sluggish Hydrostatic
4. Check hydrostatic pumps and
Pumps and Motors OK - Proceed to
Power - Continued
motors for efficiency. Perform
step 5.
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).
5. Inspect hydrostatic system
Hydraulic Oil Temperature Above
temperature during operation.
Specified Value - Inspect cooling
Hydraulic oil temperature should
system for blockage and restrictions.
be less than 203F (95C).
Refer to Cooling System Inspection
Hydraulic Oil Temperature Not
Above Specified Value - Proceed to
step 6.
6. Check engine performance.
Engine Performance OK - Proceed
to step 7.
Engine Performance Not OK -
Diagnose condition (WP 0019).
7. Check charge pressure and
Hydrostatic Pump Charge
crossover relief valve pressure
Pressures OK - Proceed to step 8.
settings (WP 0031). Refer to
Hydrostatic Pump Charge
Initial Pressure Test (WP 0031)
Pressures Not OK - If crossover
for right and left hydrostatic pump
relief valve was adjusted, operate
charge pressure.
machine and verify condition.
Condition remains - Proceed to step
8.
8. Perform Transmission Drive
Operation OK - Return machine to
Pump Pressure Override
service.
Calibration (WP 0031). Verify
Operation Not OK - Proceed to
proper operation of machine
step 9.
(TM 5-2410-240-10).
Pumps and Motors OK - Return
9. Check hydrostatic pumps and
machine to service.
motors for efficiency. Perform
Hydrostatic Pump and Motor Effi-
Pumps and Motors Not OK -
ciency Test (WP 0031).
Replace affected pumps or motors.
(WP 0126, WP 0133, WP 0134, WP
0135).
0020-6
