TM 5-3805-298-23-2
0147
Table 1. All Implements Will Not Operate or Operate Slowly Continued.
0147
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 5. Perform Implement
All Implements Will Not
Piston Pump Pressure Tests.
Operate or Operate Slowly -
1. Perform Air Purge on Implement
Air Is Not Found in Implement
Continued
Hydraulic System Proceed to step 2.
Hydraulic System (WP 0166).
Air Is Found in Implement Hydraulic
System Proceed to Test Step 7.
2. Test pump cutoff pressure
Pump Cutoff Pressure Is Correct
Proceed to step 4.
Pump Cutoff Pressure Is Not Correct
Proceed to step 3.
3. Adjust pump cutoff pressure
Pump Cutoff Adjusts to Correct
Pressure Proceed to Test Step 7.
Pump Cutoff Will Not Adjust
Replace implement pump (WP 0370).
4. Test pump standby pressure
Pump Standby Pressure Is Correct
Proceed to Test Step 6.
Pump Standby Pressure Is Not
Correct Proceed to step 5.
5. Test margin pressure
Margin Pressure Is Correct Replace
main control valve (WP 0371).
Proceed to Test Step 7.
Margin Pressure Is Not Correct
Proceed to step 6.
6. Adjust margin pressure
Margin Adjusts to Correct Pressure
Proceed to Test Step 7.
Margin Will Not Adjust Replace
implement pump (WP 0370).
Proceed to Test Step 7.
Test Step 6. Perform Pilot System
Pressure Test and Adjusting
Pressure Reducing Valve.
1. Perform Pilot System Pressure
Pilot System Pressure Is Correct
Test (WP 0166).
Replace pilot valves (WP 0379).
Proceed to Test Step 7.
Pilot System Pressure Is Not Correct
Proceed to step 2.
2. Adjust pressure reducing valve
Pressure Reducing Valve Adjusts to
Correct Pressure Proceed to Test
Step 7.
Pressure Reducing Valve Will Not
Adjust Replace pilot oil pressure
reducing valve (WP 0374).
Proceed to Test Step 7.
0147-5