J-series – Hale MG User Manual

Page 99

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Muscle Pumps

5-35


22) Install the gearshift rod end on the

end of the gearshift shaft. Tighten
the 3/8-16UNC locking hex nut.


d. Assemble and install the intermediate

shaft assembly.


1) Press a new intermediate gear

bearing into the intermediate gear.


2) Install new intermediate shaft seal

rings on the ends of the
intermediate shaft.


3) Reaching through the top of the

gearbox place the intermediate
gear in position towards the front
of gearbox housing.


4) On the XG gearbox, hold the

intermediate gear spacer in
position towards the rear of the
gearbox housing. Install the
intermediate shaft (front cutout
facing down) through the front
opening in the gearbox housing.


5) Press the intermediate shaft

through the intermediate gear and
the intermediate gear spacer until
the cut out on the front of the
shaft is flush with the surface of
the gearbox housing.


6) Apply Loctite to the 7/16-14UNC

X 1 inch long cap screw, install
the intermediate shaft washer and
tighten cap screw.


7) Rotate the sliding gear shaft and

manually shift the gearshift shaft
to check for proper operation.


8) Using a lifting device remove the

gearbox from the holding fixture.


9) Install the fire pump gearbox; see

paragraph B.2, this section.




J-Series

(Refer to figure 6-6)

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. Remove

magnetic plug, level plug and sight
gauge plug.


d. Disconnect the drive shaft from the

gearbox.


e. Remove the fire pump gearbox. See

paragraph B.1, this section.


f. Secure the pump gearbox into a

holding fixture.


g. Remove and disassemble the idler

shaft assembly (refer to figure 6-6).


1) Remove the locknut and washer

from the idler shaft.


2) Carefully press the idler shaft out

of the gearbox housing.


3) Reach into the top of the gearbox

housing and remove the idler
gear.


4) Remove the idler gear bearing

from the gear.


5) Remove the two different size

idler shaft seal rings from the idler
gear shaft.


6) Clean and inspect each component

of the idler shaft assembly. Inspect
bearings for wear, pitting and
damage. Inspect the geartooth
surface for wear, damage and

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