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N. gearbox disassembly and assembly, G-series – Hale MG User Manual

Page 94

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Muscle Pumps

5-30


10. Place a new gasket on the seating surface

of the suction tube extension. Apply a
light coat of grease to the gasket to hold it
in place.

11. Reinstall the suction tube, insert twelve

7/16-14UNC X 1-1/4 inch long cap
screws. Using a criss-cross pattern, torque
to 40 ft-lb (54 N-m).

12. Fill the pump and test for leaks.

N. Gearbox Disassembly and

Assembly

G-Series

1. Removal and Disassembly

a. Park the vehicle on a level surface. Shut

down the engine. Set the parking brake
and chock the front and rear tires.

b. Drain the water from the pump.

c. Drain the gearbox lubricant.

d. Disconnect the drive shafts from the

gearbox.


e. Disconnect the pump gearbox cooling

lines.


f. Disconnect the electrical switches and

the airlines.


g. Remove the fire pump gearbox. See

paragraph B.1, this section.


h. Secure the pump gearbox into a

holding fixture.


i. Remove and disassemble the

intermediate shaft assembly (refer to
figure 5-7).


1) Remove the 7/16-14UNC X 1

inch long cap screw holding the
intermediate shaft washer, remove
the washer.

2) Carefully press the intermediate

gear shaft out of the gearbox
housing from the rear to the front.

3) Reach into the top of the gearbox

housing and remove the
intermediate gear spacer and the
intermediate gear.