HALE AP, Technical Manual

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134
NOTE
The drive side pump shaft bearing is held in place by a snap ring, Do NOT place ex-
cessive pressure on the gearbox by allowing the press to exert force on the bearing.
The pump shaft must pass thru the bearing with the force applied to the shaft and
NOT the bearing.
c) Begin pressing pump shaft with press piston in direct contact with shaft.
d) Just before press piston contacts drive side bearing, add a pusher (wood dowel or
metal rod) between piston and pump shaft and align pusher with pump shaft so
pusher slides thru drive side bearing with minimal resistance.
Catch pump shaft assembly or pull it out of gearbox. 2.
NOTE
Note/record spacer notch orientation before removing spacer.
D. Remove drive side spacer from pump shaft. (Should pull off by hand.)
NOTES
The pump gear (ONLY 3.74, 2.91, 2.60, and 2.33:1 gear ratios) will pass thru the
gearbox bore when the pump shaft assembly is pressed out and requires removal
from the pump shaft. All other ratio pump gears will NOT pass thru the bore and must
be removed from the gearbox after the cover is removed.
ONLY remove gearbox cover if pump gear remains inside the gearbox and requires
inspection and/or replacement.
E. If required, remove gearbox cover.
Using 13 mm socket and impact driver (or ratchet), loosen 14 M8-1.25 X 1.
20 mm long screws.
Remove 14 M8-1.25 X 20 mm long screws with washers. 2.
Remove cover. 3.
Remove all remaining gasket material from mating surfaces of cover and 4.
gearbox.
F. Remove pump gear from pump shaft or inside of gearbox.
(See NOTES above.)
G. Remove key from keyway (pump gear/pump shaft).
NOTE
Note/record spacer notch orientation before removing spacer.
H. If applicable (spacer NOT used with 3.74:1 GR), remove pump side spacer
from pump shaft. (Should pull off by hand.)
I. Remove pump side pump shaft snap ring from pump shaft.
Expand and remove retainer. 1.
a) Using snap ring pliers, insert tips of pliers into holes in snap ring and expand snap
ring.
b) Pull snap ring off pump shaft.
c) Release and remove snap ring pliers.
Discard snap ring. 2.