Toro Groundsmaster 455-D Service Manual page 239

Installing Spindle, Bearings
and Seals Into Spindle Housing
IMPORTANT: If a new spindle housing is being used,
new bearings and the matched snap ring set must
be installed; refer to step 1 below. Never use the old
bearings, spacer, and snap ring with a new spindle
housing. By contrast, use only new bearings with
cups and spacer - not the large snap ring because
it is not required - when installing bearings into a
used spindle housing that still has a snap ring
installed: refer to step 2 below.
1. Install the large retaining ring into the groove in the
bore of the spindle housing. Make sure the retaining ring
is seated in the groove.
2. Using an arbor press, push the large spacer into the
top of the spindle housing; tightly against the snap ring.
The spacer must contact the snap ring to be sure of the
correct assembly of the parts.
3. Thoroughly oil the bearing cups and using an arbor
press, push the bearing cups, smallest inside diameter
first, into the top and bottom of the spindle housing. The
top bearing cup must contact the spacer that was in­
stalled in step 2, and the bottom bearing cup must
contact the snap ring to be sure of the correct assembly
of parts. Insure that the assembly is correct by support­
ing the first cup and pressing the second against it.
4. Apply a film of grease on the lips of both seals, then
install the bearing and the seal into the bottom of the
spindle housing. Remember, the bottom seal must have
the lip facing outward, not toward the inside of the
spindle housing.
5. Check the spindle shaft to make sure it is free of burrs
and nicks that could possibly cut the seals and thor­
oughly lubricate both the shaft and seal lips.
6. Slide the small, thick spacer into the spindle housing.
Then install the bearing and seal into the top of the
spindle housing. The lip of the seal must face inward.
7. Slide the spacer onto the spindle shaft. Carefully slide
the spindle shaft through the spindle housing. The bot­
tom seal and spacer fit together when the spindle is
installed.
8. Attach grease gun to grease fitting and fill cavity with
grease until grease starts to come out of lower seal.
9. Push the pulley, or pulley, spacer and clutch onto the
spindle shaft and retain the parts together with the large
flat washer and nut. Tighten the nut to 150 - 170 ft-lb
and rotate the spindle shaft to be sure that the shaft
rotates freely.
®
Groundsmaster 455-D
10. Slide the pulley end of the spindle assembly through
the hole in the cutting unit. Mount the spindle assembly
in place with the eight (8) hex flange head bolts and
flange nuts.
11. Install the belt and adjust belt tension.
12. Install the clutch rod and connect the clutch electrical
connector to the wire harness.
13. Install the belt covers.
Rev. C
Page 8 - 19
Figure 29
Figure 30
Figure 30a
Repairs