TM 5-2420-230-24-1
Table 3-6. Unit Troubleshooting Table. -- Continued
Malfunction
Test or Inspection
Corrective Action
28.
NO OR LOW HYDRAULIC POWER FOR COMPLETE HYDRAULIC SYSTEM.
Do not check for leaks by hand; oil under hydraulic pressure can penetrate the skin and cause severe
injury. Failure to comply may result in injury or death to personnel.
Step 1.
Check relief valves on backhoe and FEL valve blocks (1) for leaks, and to ensure neither is set too low.
If either relief valve is set too low, reset relief valve (Para 10-6).
If either relief valve is leaking, repair or replace valve block as necessary (Para 10-15 or Para 10-16).
Step 2.
Check hydraulic pump (2) with flow meter (Para 10-7).
If flow rate is less than 24 gpm (91 L/min), replace hydraulic pump (2) (Para 10-13).
Change 1