Adjustment-CONT. - TM-10-3930-673-20-20589

TM 10-3930-673-20-2

WARNING

Hydraulic oil in system can be under pressures over 3000 psi (20685 kPa) with engine OFF.

ALWAYS relieve pressure in hydraulic lines before attempting to remove any component in

hydraulic system. With engine OFF, starter switch in RUN position, and attachment on ground,

move control levers through all operating positions several times to relieve line pressure. Relieve

pressure in hydraulic oil tank by loosening filler cap very slowly. Failure to follow these

precautions could result in serious injury to personnel.

At operating temperatures, hydraulic oil is hot and under pressure. Hot oil can cause injuries to

personnel. Allow hydraulic oil to cool before disconnecting any hydraulic lines.

(6)

Remove pressure gauge (TM 10-3930-673-10).

Remove pressure gauge from test tee.

(7)

Remove test tee from relief valve (14).

(a)

Remove inlet hose (4) from test tee.

(b)

Remove test tee from relief valve (14).

(8)

Connect inlet hose (4) to relief valve (14).

NOTE

Any time hydraulic oil has been drained and changed or maintenance has been performed on hydraulic

system, it is possible that hydraulic pumps have air in pump cavities. Air must be purged from cavities

before pump will operate (refer to Para 18-2).

(9)

Bleed air from frame tilt and brake hydraulic circuit.

(a)

Start engine (TM 10-3930-673-10).

(b)

Operate frame tilt function and tilt vehicle from side to side five times.

(c)

Stop engine and relieve hydraulic pressure by operating frame tilt controls

(TM 10-3930-673-10).

END OF TASK

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