J-series – Hale MG User Manual
Page 99

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