Installing The Wheel Shaft - Troy-Bilt 7 HP Technical Manual

PTO HORSE MODEL
TECHNICAL MANUAL
Page 7-3 4/90
SECTION 7: Special Repairs and Procedures
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Figure 7-2: Wheel Shaft
Assemb~.
3. From the left side of the wheel
shaft, remove the oil seal (1), the
(external) snap ring (2), and the
shim(s) (3). See Section
5
in this
manual for more details'.
4. From the right side of the wheel
shaft, remove the oil seal (1).
5. Insert a screwdriver in the hole
on the right side of the wheel
shaft. This is the hole for the spirol
pin that holds the wheel hub to the
shaft.
6. Shift the Wheel Speed Lever
so that the clutch is in NEUTRAL.
7. Strike the left side of the shaft
with a rubber hammer. The shaft
will move inward until the hi-pro
key (14) on the shaft hits the side
of the fast speed wheel gear (4).
Slowly rotate the shaft with the
screwdriver and continue to strike
the left side of the shaft with the
hammer. You are trying to align
the key (14) in the shaft with the
keyway in the fast speed wheel
gear to permit the removal of the
shaft.
Continue hitting the shaft until
you feel it passing through the fast
speed gear. Then finish driving the
shaft out.
Note: If you had to saw the left
wheel off, you will have to use an
old wheel shaft as a driver. This
will require you to find someone
to assist you in turning the screw-
driver while you hold the old shaft
and hammer.
As you tap the drive shaft out, the
key in the shaft will also remove
the right-side bushing, snap ring,
shim(s), and oil seal.
8. Using a long punch inserted
from the right side of the housing,
remove the bronfs hushing (13)
from the left side of the housing.
You will have to pass >the punch
through the clutch and wheel
speed gears.
9. Disassemble and inspect the
wheel shaft. See Section 5 in this
manual for more details.
Installing the Wheel Shaft
1. Install a hi-pro key (14) in the
wheel shaft.
2. fnspect the new wheel shaft
for burrs or other rough spots that
could make inserting the shaft
through the gears and clutch diffi-
cult. If necessary, use emery cloth
to remove any rough spots.
3. Pull the eccentric lever (12)
back and wedge it. This releases
the eccentric shaft (15) pressure
on the clutch (10).
4. Line up the keyways on the-
fast speed wheel gear (4) and
clutch (10). Use a screwdriver
inserted through the right side of
the housing to position them at
12 o'clock.
5. Lubricate the wheel shaft (5) .
6. With the key in the wheel shaft
positioned at 12 o'clock, insert the
shaft through the right side. Do
not use force; do not use a
hammer.
7. Pass the wheel shaft and its
key through the fast speed gear,
clutch, and slow speed gear. This
may take a few attempts until you
are successful.