ROTATOR CYLINDER DRIFTS. cont'd -680640421

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 for steps c and g. Failure to do so will result in spilled

hydraulic

oil.

Disconnect hose (1) at rod end of rotator 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 rotate right position. Hold lever in rotate

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

end of rotator cylinder (2).

If there is excessive leakage from fitting, replace rotator

cylinder (page 4-688).

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

rotator cylinder (2).

Start and run engine at idle. Move forklift control lever to rotate left

position.

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

and install threaded plug.

Start and run engine at idle. Move forklift control lever to rotate left

position. Hold Iever in rotate left position and have assistant check for

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

If there is excessive leakage from fitting, replace rotator

cylinder (page 4-688).

If there is not excessive leakage from fitting, notify direct

support maintenance.

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