Toro ProCore SR Series Service Manual page 121

5. Use a press to remove output shaft and bearings
from gearbox housing:
NOTE: Shim set (item 19) is used to adjust gearbox
backlash. When removing output shaft and bearings,
take note of location and number of shims to assist in as-
sembly process.
A. Remove retaining ring (item 20) and shim(s)
(item 19) from side of gearbox housing opposite the
bevel gear (item 21).
B. Support bevel gear (item 21) to prevent it from fal-
ling.
C. Press output shaft through the bevel gear to re-
move shaft. The gear side bearing cone (item 15) will
be removed during shaft removal. The non--gear
side bearing (item 2) should remain on shaft.
D. Remove bevel gear and gear side bearing cone
(item 15) from housing.
E. Remove non--gear side bearing (item 2) from out-
put shaft.
F. Remove retaining ring (item 20) and shim(s)
(item 19) from gear side of gearbox housing. Re-
move gear side bearing cup (item 15) from housing.
G. Discard removed bearings.
6. Use a press to remove input shaft and bearings from
gearbox housing:
A. Remove oil seal (item 27) from gearbox housing.
Discard oil seal.
NOTE: Shim set (item 23) is used to adjust input
shaft bearing pre--load. When removing input shaft,
take note of location and number of shims to assist
in assembly process.
B. Remove retaining ring (item 10), spacer (item 25)
and shim(s) (item 23) from gearbox input shaft bore.
C. Press input shaft toward rear opening of gearbox
housing to remove shaft.
D. Remove outer bearing cone and both input shaft
bearing cups from gearbox housing.
E. Using a press, remove inner bearing cone from
input shaft.
F. Discard removed bearings.
7. Disassemble axle tubes:
A. Remove retaining ring (item 3) and seal retainer
assembly (items 4, 7 and 9) from axle tube.
ProCore SR Series
B. Remove and discard O--ring (item 4) and oil seal
(item 7) from seal retainer. Note orientation of oil seal
for assembly purposes.
C. Press bearing (item 6) from axle tube. Discard re-
moved bearing.
D. Remove and discard O--ring (item 8) from inner
flange of axle tube.
8. Thoroughly clean and inspect all gearbox compo-
nents. Replace all worn or damaged parts.
Gearbox Assembly (Fig. 4)
1. Assemble axle tubes:
A. Press new bearing (item 6) into axle tube bore.
Make sure that bearing is pressed fully to shoulder in
axle tube.
B. Apply a light coating of grease on lips and OD of
new oil seal (item 7). Install new oil seal into seal re-
tainer. Make sure that seal is pressed fully to shoul-
der in seal retainer.
C. Lightly grease and install new O--ring (item 4) into
seal retainer groove.
D. Install seal retainer assembly (items 4, 7 and 9)
into axle tube and secure with retaining ring (item 3).
Make sure that retaining ring is fully seated in axle
tube groove.
E. Lightly grease and install new O--ring (item 8) to
inner flange of axle tube.
2. Install new bearings and input shaft into gearbox
housing:
A. Press inner bearing cone fully onto input shaft.
B. Install inner and outer bearing cups (items 17 and
26) into gearbox housing bores.
C. Install input shaft into gearbox housing through
rear opening of housing.
D. While supporting gear end of input shaft, press
outer bearing cone onto input shaft. Bearing should
fit into installed outer bearing cup in gearbox hous-
ing.
E. Install the removed shim(s) (item 23), spacer
(item 25) and retaining ring (item 10) onto input shaft.
If necessary, remove or add shims so that the spacer
fits tightly between the shims and retaining ring.
Make sure that retaining ring is fully seated in shaft
groove and that there is no endplay in input shaft as-
sembly.
Page 7 - - 11 Gearbox Service