FRONT LOADER WILL NOT RAISE USING BUCKET SWITCH.

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

FRONT LOADER (SEE) (CONT)

Set hand throttle to 1200 rpm and depress button on solenoid (1) of control valve (2).

If front loader lowers, perform Malfunction 77.

If front loader does not lower, notify direct support maintenance.

141. FRONT LOADER WILL NOT RAISE USING BUCKET SWITCH.

Set hand throttle to 1200 rpm and depress button on solenoid (3) of oontrol valve (2).

If front loader raises, perform Malfunction 77.

If front loader does not raise, notify direct support maintenance.

142. LOADER BOOM CYLINDER DRIFTS.

NOTE

Steps 1 and 2 are the same for both loader boom cylinders.

Step 1. Check for loose and damaged hydraulic lines.

If hydraulic lines are loose or damaged, tighten loose

connections or replace hydraulic lines (pages 4-569, 4-572).

If hydraulic lines are not loose or damaged, go to step 2.

Step 2. Check for damaged loader boom cylinder packing as follows:

a. Start engine. Place front loader in fully raised position.

b. Stop engine.

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