TM 5-2420-231-23-1
0079
Table 1. Right Stabilizer Does Not Operate Correctly - Continued.
079
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 3. Inspect Right Stabilizer
Right Stabilizer Does Not
Load Check Valve.
Operate Correctly -
Continued
Inspect right stabilizer load check valve
Right Stabilizer Load Check Valve
(Figure 4, Item 1) (WP 0239) for
OK - Proceed to Test Step 4.
damage and Class III leaks.
Right Stabilizer Load Check Valve
Damaged or Leaking - Repair right
stabilizer load check valve (WP 0239).
Proceed to Test Step 16.
Figure 4. Stabilizer Check Valve.
0079
Test Step 4. Inspect Right Stabilizer
Cylinder.
Inspect right stabilizer cylinder (WP
Right Stabilizer Cylinder OK -
0272) for damage and Class III leaks.
Proceed to Test Step 5.
Right Stabilizer Cylinder Damaged or
Leaking From Rod or Cylinder -
Replace right stabilizer cylinder (WP
0272).
Proceed to Test Step 16.
Test Step 5. Check Pilot Pressure.
While operating backhoe right stabilizer Pilot Pressure 350 to 550 psi -
(TM 5-2420-231-10), test pilot pressure Remove hose and pressure gauge from
machine.
Replace backhoe control valve
assembly (WP 0263).
Proceed to Test Step 16.
Pilot Pressure Less Than 350 psi -
Remove hose and pressure gauge from
machine.
Replace pilot control valve assembly
(WP 0264).
Proceed to Test Step 16.
