Toro Groundsmaster 300 Series Service Manual page 344

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 bear-
ings with cups and spacer - - not the large snap ring
because it is not required - - when installing bearings
into a used spindle housing that has the large snap
ring installed; refer to step 2 below.
1. Install the large snap ring into the groove in the bore
of the spindle housing. Assure the snap ring is seated in
the groove.
2. Using an arbor press, push the large spacer into the
top of the spidle 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
installed in step 2, and the bottom bearing cup must con-
tact the large snap ring to be sure of the correct assem-
bly of parts. Insure that the assembly is correct be
supporting the first cup and pressing the second against
it.
4. Install the lower bearing and the lower oil seals into
the bottom of the spindle housing. Remember, the bot-
tom seals 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. Thoroughly
lubricate the spindle shaft and seal lips.
6. Slide the small, thick spacer into the spindle housing.
Then, install the upper bearing and seal into the top of
the spindle housing. On spindle assemblies that have
the grease fitting on the housing (shown in Fig. 36), the
lip of the upper seal faces inward. On spindle assem-
blies that have the grease fitting on the top of the spindle
shaft (shown in Fig. 34), the lip of the upper seal faces
outward.
7. Slide the bearing spacer onto the spindle shaft. Care-
fully slide the spindle shaft up through the spindle hous-
ing. The bottom seal and bearing spacer should fit
together when the spindle is installed.
Repairs
8. Push the pulley onto the splines of the spindle shaft
and retain the parts together with the large flat washer
and lock nut. Tighten the nut to 100 -- 120 ft--lb (136 --
162 N--m). After tightening, rotate the spindle shaft to be
sure that the shaft rotates freely.
9. 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.
10. Install the belt and adjust idler to get proper belt ten-
sion.
11. Reinstall the belt covers.
BEARING
CUP
SUPPORT
Page 11 - - 28
Rev. I
ARBOR PRESS
LARGE SPACER
LARGE
SNAP RING
Figure 37
Figure 38
Groundsmaster 300 Series