Oil Pump M3 (Single or Double Type Recoil Mechanisms)

TB 9-1000-234-13

(8) Release valve on oil pump and allow cannon to move back into battery.

(9) Repeat operation at least three times to ensure that recoil slide area and seals are lubricated.

(10) Apply GAA as specified in paragraph 1-3e.

(11) Remove 2 by 4 and proceed as in step (8) above.

(12) Remove plug or cap and attach replenishment hose by one or two threads.

(13) Fill replenisher, bleeding out any air in replenisher hose.

(14) Tighten replenisher hose and recheck for proper amount of oil as specified in the pertinent technical

manual.

c. Replenisher.

(1) Replenisher may be exercised with either oil pump M3 or an 8 ounce filler gun.

(2) Drain fluid from replenisher into a clean container.

(3) Attach oil pump hose loosely into filter plug hole. Force air out of hose, tighten hose, and pump fluid into

replenisher. Fill replenisher until indicator tape shows smooth edges.

(4) Drain replenisher until the proper reading is showing on the indicator tape.

(5) Using an oil spray gun, spray petroleum base hydraulic fluid (MII-H-46170 FRH) to the inner surface of

replenisher cylinder. This is accomplished by placing the nozzle of gun into each hole alongside indicator tape and

alongside tape through the center hole. This procedure should be repeated each time cannon is exercised.

NOTE

The replenisher is exercised independently, but in conjunction with exercising the recoil

mechanism. The recoil mechanism cannot be exercised through the replenisher.

d. Hydraulic Jack. Position vehicle (tables 2-1 and 2-2) so that hydraulic jack can be placed between protected

cannon muzzle and a vertical, solid, immovable object.

CAUTION

Ensure that cannon bore is square with object, and jack is placed parallel with bore and at right

angle to the side or flat face of the object.

Make sure traversing and elevating controls are locked in place before operating jack to move

weapon out-of-battery.

Repeat movement at least three times. Lubricate as specified in paragraph 1-3e.

e. Wrecker M62, M543A2, M816, M977, or M98E1 HEMTT and Improvised Exercising Bracket. When

exercising a number of combat vehicle recoil mechanisms, an improvised exercising bracket (figures 2-1, 2-2, and 2-3)

can be fabricated to save time and effort. With this exercising device, any number of combat vehicles (tables 2-1 and 2-2)

can be exercised by using the wrecker boom (figures 2-3 and 2-4) and exercise recoil mechanism as outlined below.

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