ROTATOR CYLINDER DRIFTS.

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

FORKLIFT (HMMH) (CONT)

NOTE

Use threaded plugs in hoses in steps c and g. Failure to do so will result in spilled

hydraulic oil.

Disconnect hose (1) at rod end of tilt cylinder (2) and install threaded

plug. Start and run engine at idle.

NOTE

During steps d and h, there may be a small amount of hydraulic oil leaking, either drops

or a small stream the diameter of a pencil lead. This is normal. Use drip pan to catch oil.

Move forklift control lever to tilt forward position. Hold lever in tilt

forward position and have assistant check for leaks from fitting (3) at

rod end of tilt cylinder (2).

If there is excessive leakage from fitting, replace tilt cylinder

(page 4-686).

If there is not excessive leakage from fitting, go to step e..

Stop engine. Remove threaded plug and connect hose (1) at rod end of

tilt cylinder (2).

Start and run engine at idle. Move forklift control lever to tilt back position.

Stop engine. Disconnect hose (4) at cylinder end of tilt cylinder (2) and

install threaded plug.

Start and run engine at idle. Move forklift control lever to tilt back

position. Hold Iever in tilt back position and have assistant check for

leaks from fitting (5) at cylinder end of tilt cylinder (2).

If there is excessive leakage from fitting, replace tilt cylinder

(page 4-686).

If there is not excessive leakage from fitting, notify direct

support maintenance.

106. ROTATOR CYLINDER DRIFTS.

Step 1. Check for loose and damaged hydraulic lines.

If hydraulic lines are loose or damaged, tighten loose

connections or replace hydraulic lines (page 4-624).

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

Step 2. Check for damaged rotator cylinder packings as follows:

a. Start engine.

b. Rotate forklift to right until forklift stops moving. Stop engine.

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