TANDEM GEAR PUMP REPLACEMENT

TM 10-3930-660-24-1

TANDEM GEAR PUMP REPLACEMENT

0173 00

THIS WORK PACKAGE COVERS

Removal, Installation

INITIAL SETUP

Tools and Special Tools

Materials/Parts - Continued

Lockwasher (11)

Tool kit, general mechanic's (Item 39, WP 0324 00)

O-ring (13)

Shop equipment, common no. 1 (Item 20, WP 0324

References

00)

Materials/Parts

Personnel Required

Two

Cap and plug set (Item 8, WP 0323 00)

Equipment Condition

Oil, lubricating (Item 32, WP 0323 00)

Vehicle parked on level ground

Sealant, Loctite (Item 43, WP 0323 00)

Boom raised and supported (TM 10-3930-660-10)

Transmission cover removed (WP 0150 00)

Tag, marker (Item 57, WP 0323 00)

REMOVAL

WARNING

When working under the boom, always use blocks or other supports. Combined weight of boom and

MLRS attachment is approximately 6,300 lb (2,856 kg). Failure to adequately support the boom could

result in severe injury or death.

Do NOT remove hydraulic tank filler cap or disconnect or remove any hydraulic system line or fitting

unless hydraulic system pressure has been relieved. Hydraulic system pressure can be over 3,000 psi

(20685 kPa), even with engine and pump OFF. To relieve pressure, lower all hydraulic attachments to

the ground and shut down engine. Move control levers through all operating positions, then SLOWLY

loosen hydraulic tank filler cap. After maintenance, tighten all connections before applying pressure.

Escaping hydraulic fluid under pressure can penetrate the skin, causing injury or death.

At operating temperature hydraulic oil is hot. Allow hydraulic oil to cool before disconnecting any

hydraulics. Failure to do so could result in injury.

CAUTION

Wipe the area clean around all hydraulic connections to be opened during removal and disassembly. Cap oil

lines and plug holes after removing lines. Contamination of the hydraulic system could result in premature

failure.

NOTE

Tag all hydraulic connections before removing for use during installation.

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