Table 2-1. Direct Support and General Support Troubleshooting Table

TM5-241O-237-34

Table 2-1.

Direct Support and General Support Troubleshooting Table (Cont'd)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

HYDRAULIC SYSTEM (BULLDOZER AND RIPPER)

44.

ERRATIC CYLINDER MOVEMENT/NOISY HYDRAULIC PUMP ACCOMPANIED BY OIL

FOAMING IN THE HYDRAULIC TANK

Step 1.

Check the hose and connections between the tank and pump for leaks.

Repair or replace line or fitting (page 13-70 and TM5-2410-237-20).

Step 2.

Check oil level in the hydraulic tank.

Add oil to maintain level above the return line to prevent air from

entering the system (L05-2410-237-12).

Ensure tank is filled with correct viscosity hydraulic fluid.

Step 3.

Drain and refill system with correct fluid (LO5-241O-237-12).

END OF TESTING!

SLOW CYLINDER MOVEMENT (ALL CYLINDERS)/LOSS OF PRESSURE (INEFFICIENT

45.

IMPLEMENT CIRCUITS)

Step 1.

Check hydraulic tank for correct oil level. Ensure tank is filled with

correct viscosity hydraulic fluid.

Add or replace oil as required (L05-2410-237-12).

Check the supply line to the pump for restrictions.

Step 2.

Repair or replace supply line (TM5-2410-237-20).

Carefully check the system for leakage.

Step 3.

Repair or replace leaking component.

Check control linkages for free movement and full travel of control valve

Step 4.

spools.

Repair or adjust control linkage (page 13-59, blade control; page 13-67,

ripper control), or repair or replace bulldozer control valve (page 13-15)

or ripper control valve (page 13-51).

Check for low relief valve setting and low hydraulic pump output. Perform

Step 5.

hydraulic system flow test d (page 13-111).

Adjust relief valve (page 13-111). Repair or replace hydraulic pump or

control valve as indicated by test results.

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