REMOVAL - CONTINUED - TM-10-3930-660-24-10883

TM 10-3930-660-24-1

BOOM HOIST CYLINDERS REPLACEMENT - CONTINUED

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REMOVAL - CONTINUED

10.

Using boom hoist joystick control valve, fully retract cylinder (2).

11.

Stop engine (TM 10-3930-660-10).

WARNING

Use caution when handling heavy parts. Provide adequate support and use assistance during procedure.

Ensure that any lifting device used is in good condition and of suitable load capacity. Keep clear of heavy

parts supported only by lifting device. Failure to follow this warning may cause injury or death.

NOTE

Weight of each boom hoist cylinder is approximately 182 lb (83 kg).

12.

Carefully lower cylinder (2), using lifting device, until cylinder (2) is resting on board placed on main deck.

CAUTION

Wipe the area clean around all hydraulic connections to be opened during removal. Cap lines and plug open-

ings after removing lines. Contamination of the hydraulic system could result in premature failure.

NOTE

If more than one hydraulic line is to be removed, identify lines to assure proper installation. Use suitable

container to catch any hydraulic oil that may drain from system.

13.

Disconnect hydraulic lines (5 and 6) from cylinder ports.

14.

To remove boom hoist cylinder lower pivot pin (7), remove locknut (8) and screw (9). Discard locknut.

15.

Remove lower pivot pin (7) using pin puller.

16.

Move lifting device to cylinder balance point and carefully lift cylinder (2) off vehicle.

INSTALLATION

NOTE

Remove caps and plugs as hoses are

installed. Wipe all sealing surfaces on cyl-

8,9

inder and hoses clean and dry.

Carefully lower cylinder (2) onto board placed on

main deck using lifting device.

NOTE

Apply antiseize compound to lower pivot

pin as installed.

Align cylinder base lower mounting holes and install

lower pivot pin (7), screw (9) and new locknut (8).

Connect hydraulic lines (5 and 6) as tagged during

cylinder (2) removal.

409-792

Carefully raise cylinder (2) using lifting device until

rod eye of cylinder (2) is aimed at pivot pin mounting

hole on boom.

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