Service Manual

Groundsmaster 7200/7210 Page 7 – 13 Cutting Deck
3. Using an arbor press, push the bearing cups into the
top and bottom of the spindle housing. The top bearing
cup must contact the outer spacer previously installed,
and the bottom bearing cup must contact the snap ring.
Make sure that the assembly is correct by supporting the
first bearing cup and pressing the second cup against it
(Fig 12).
4. Pack the bearing cones with grease. Apply a film of
grease on lips of oil seals and O–ring.
5. Install lower bearing cone and oil seal into bottom of
spindle housing. Note: The bottom seal must have the
lip facing out (down) (Fig. 13). This seal installation al-
lows grease to purge from the spindle during the lubrica-
tion process.
IMPORTANT: If bearings are being replaced, make
sure to use the spacer ring that is included with new
bearing set (Fig. 11).
6. Slide spacer ring and inner bearing spacer into
spindle housing, then install upper bearing cone and oil
seal into top of housing. Note: The upper seal must have
the lip facing in (down) (Fig. 13). Make sure upper seal
is flush to 0.080” (2.0 mm) recessed to housing surface.
7. Inspect the spindle shaft and shaft spacer to make
sure there are no burrs or nicks that could possibly dam-
age the oil seals. Lubricate the shaft and spacer with
grease.
8. Install spindle shaft spacer onto shaft. Place thin
sleeve or tape on spindle shaft splines to prevent seal
damage during shaft installation.
9. Carefully slide spindle shaft with spacer up through
spindle housing. The bottom oil seal and spindle spacer
fit together when the spindle is fully installed.
10.Install O–ring to top of spindle shaft (Fig. 14).
NOTE: Early production spindle assemblies included a
v–ring seal which has been found to be unnecessary. Do
not install a v–ring seal when assembling the spindle.
11. Install pulley (hub down), special hardened washer
and lock nut to spindle shaft (Fig. 14). Tighten lock nut
from 130 to 150 ft–lb (176 to 203 N–m).
IMPORTANT: Pneumatic grease guns can produce
high pressure inside spindle housing that can dam-
age spindle seals. Pneumatic grease guns, there-
fore, are not recommended to be used for greasing
of spindle housings.
12.Attach a hand pump grease gun to grease fitting on
housing and fill housing cavity with grease until grease
starts to come out of lower seal.
13.Rotate spindle shaft to make sure that it turns freely.
1. Bearing cup
2. Large snap ring
3. Outer spacer
4. Arbor press
5. Support
6. Arbor press base
Figure 12
PRESS
5
2
4
3
6
1
1. Bottom seal installation 2. Upper seal installation
Figure 13
2
1
1. Upper seal
2. O–ring
3. Flat washer
4. Lock nut
Figure 14
3
1
2
4
Cutting
Deck