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

46. LIFT CYLINDER DRIFTS

Perform cylinder drift test c (page 13-111) for the lift cylinders.

If drift occurs only with the blade control lever in the LOWER or RAISE

position, repair the bulldozer control valve (page 13-15).

If drift occurs only with the blade lowered or only with the blade

raised (control lever in any position), repair the bulldozer control

valve (page 13-15).

If drift occurs with blade lowered (control in LOWER) and with blade

raised (control in any position), replace (TM5-2410-237-20) or repair

(page 13-93) the blade lift cylinder.

TILT CYLINDER OR RIPPER LIFT CYLINDER DRIFTS

47.

Perform cylinder drift test c (page 13-111).

If drift exceeds maximum limits, repair cylinder (page 13-71) or repair

control valve (page 13-15).

48. BOTH DOZER TILT AND RIPPER LIFT CYLINDERS DRIFT

Perform cylinder drift test (page 13-111).

If drift exceeds maximum limits, repair or replace pressure control valve

(page 13-35).

49. DOZER TILT OR RIPPER LIFT CIRCUIT IS SLOW OR DOES NOT MOVE

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).

Step 2.

Carefully check the system for leakage.

Repair or replace leaking component.

Step 3.

Check pilot lines for restrictions.

Repair or replace pilot line (TM5-241O-237-2O).

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