TM-9-2350-238-10

RECOVERY VEHICLE, FULL-TRACKED: LIGHT, ARMORED, M578

OPERATOR’S MANUAL

APRIL 1990

TM-9-2350-238-10 - Page 119 of 291

TM 9-2350-238-10

HYDRAULIC IMPACT WRENCH OPERATION–CONTINUED

Flow

Regulator

Setting

5

6

7

7 1/2

8

8 1/2

9

9 1/2

10

Torque Output

1-in. Bolt at

10 Seconds

OFF

460

640

760

800

840

Torque Output

1-in. Bolt at

5 Seconds

OFF

300

380

510

660

780

5

6

7

8

9

Pull up on flow regulator valve handle (5)

to setting required as listed in table.

Turn impact wrench rotary switch (6) to

desired direction of rotation.

Install impact wrench on work and

depress trigger (7) to operate impact

wrench (2).

Hold hydraulic impact wrench with two

hands during operation (8).

Push down on flow regulator valve han-

dle (5) when wrench operation is com-

pleted. Handle must be all the way down

before spade can be operated.

EMERGENCY OPERATION OF CRANE

AND SPADE

The M578 recovery vehicle is equipped with

Boom winch brake to be released.

a hydraulic ram hand pump and brake

pressure selector valves. These provide

Boom to be lowered.

emergency hydraulic pressure and limited

operation of crane and spade. The following

Tow winch brake to be released.

procedures should be used when there is a

power failure causing loss of hydraulic

Cab to be traversed.

pressure. The emergency procedures provide

for making vehicle ready for travel and allow:

Spade to be raised.

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