HALE AP, Technical Manual

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Perform the following to remove and replace an input shaft.
Input Shaft Removal
A. Remove input shaft oil seal.
Drain any remaining gear oil from gearbox. 1.
a) Position oil safe catch container under drain plug.
b) Remove magnetic (and/or adjacent) drain plug(s).
i. Using 9/16-in wrench (or 8 pt. socket and ratchet – set for CCW), loosen mag-
netic drain plug. NOTE: If required using 10 mm hex socket and ratchet – set
for CCW, loosen adjacent drain plug.
ii. Remove drain plug(s).
c) Inspect drain plug for metal fragments or other abnormalities that may provide
clues as to condition of internal gearbox components. (See Section 5.1, Trouble-
shooting.)
d) Install magnetic (and/or adjacent) drain plug(s).
i. Hand start drain plug.
ii. Using 9/16-in wrench (or 8 pt. socket and ratchet – set for CW), tighten mag-
netic drain plug. NOTE: If required using 10 mm hex socket and ratchet – set
for CW, tighten adjacent drain plug. (NOTE: Plug should be approximately flush
with the housing when tighten.)
Using seal removal tool, remove input shaft oil seal. 2.
a) Drive removal tool into seal body.
b) Pry input shaft oil seal out of gearbox.
Discard seal. 3.
B. Remove drive side bearing retaining ring.
Compress and remove retaining ring. 1.
a) Using snap ring pliers, insert tips of pliers into holes in retaining ring and com-
press retaining ring.
b) Pull retaining ring out of gearbox.
Discard retaining ring. 2.
C. Remove input shaft endcap.
Using seal removal tool, remove input shaft endcap (pump side of gear- 1.
box).
a)
Drive removal tool into endcap.
b) Pry input shaft endcap out of gearbox.
NOTES
If a heavy enough tool is NOT available, using a hammer drive a long thin chisel into
the endcap, then use a short length of steel rod as a fulcrum and pry (the hammer
may again be used) the endcap out of the gearbox.
The endcap is NOT serviceable after removal.