15.
6. Remove the hex flange head screws (Item 8) and lock
nuts (Item 10) securing spindle housing to deck. Slide
spindle housing assembly out the bottom of the cut-
ting unit.
7. Remove the nut (Item 2) and washer (Item 18)
re
taining the spindle pulley or clutch on the spindle
shaft. Slide the pulley or clutch (Item 3), spacer (Item 5)
and pulley (Item 6) off of the shaft. Make sure you
account for the key (Item 4).
NOTE: There are three (3) different types of spindle
housing assemblies. The type with
the clutch is shown.
8. If the spindle shaft (Item 11) will be replaced, remove
the bla
de bolt (Item 16), and blade (Item 13) from the
spindle shaft. Otherwise, the blade may be left on the
spindle shaft.
NOTE: Units with S/N below 30001 will have a hex bolt
and flat washer securing the
blade. Units with S/N
30001 & up will have a hex flange bolt securing the
blade.
9. Press the spindle shaft (Item 11) out of the spindle
ho
using (Item 9) using an arbor press. The spacer
(Item 12) remains on the spindle shaft as the shaft is
being removed.
10. The seals (Item 7) will be removed next; however,
no
tice the lip of the seal. The lip of the upper seal faces
inward, and the lip of the lower seal faces outward.
Therefore, new seals must always be installed with the
lip facing in the proper direction. Now remove the seals
from spindle housing.
11. Allow the bearings and small spacer to fall out of the
spin
dle housing.
12. Using a punch and hammer, drive both of the
be
aring cups out of the spindle housing. Also drive the
large spacer out of the housing.
13. A large retaining ring is inside the spindle housing.
The retaining ring is dif
ficult to remove and it is recom-
mended that it be left in place unless damaged.
IMPORTANT: If new bearings will be installed into a
used
spindle housing that has the original snap ring
installed, discard the large snap ring that came with
the bearings because it is not needed. However, new
bearings with their matched spacer and snap ring
must always be installed when the spindle housing
is being replaced. Replacement bearings are sold
only with a matched snap ring and spacer set. These
parts cannot be purchased separately.
18
12
Large spacer
Small spacer
Bearing
Retaining ring
85 - 110 ft-lb
150 - 170 ft-lb
1
2
3
4
5
6
7
17
8
9
10
11
7
13
14
15
16
Figure 28
1. Grease fitting 11. Spindle shaft
2. Lock nut 1
2. Spindle spacer
3. Clutch 13
. Blade
4. Square key 14
. Anti-scalp cup
5. Spacer 15
. Flat washer
6. Pulley (S/N
below 30001)
7. Wave seal 16
. Blade bolt
8. Hex flange head screw 17. Bearing assembly
9. Spindle housing 18. W
asher
10. Flange nut
Figure 28a
Repairs Page 8 - 18
Rev. C
Groundsmaster
®
455-D
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