SECTION 5 - MOWER ATTACHMENT
SERVICE
5.3 MOWER SPINDLES (Field Serviceable
Spindles)
BEARING REPLACEMENT
In the
event
that
a spindle
bearing
requires
replacement,
the
SNAPPER
Field
Serviceable
Spindles
have been designed
so that no special
tools or presses are required.
1. Remove
belt. Loosen blade nut and remove.
Allow blade bolt, washer, blade and four spacers to
drop down out of the spindle housing. See Figure
5.7.
REMOVE NUT
w
•
REMOVE BELT
FROM SPINDLE
J
r
!_
;_M_VE
BLADE
FIGURE 5.7
2. Remove spindle pulley from spindle shaft.
3. Locate circular retaining ring on spindle shaft at
top bearing. Remove retaining
ring. Allow spindle
shaft to drop out of housing.
4. Top and bottom bearings
are now removable.
Pull out on inner race to slide bearing from housing.
See Figure 5.8.
5. Thoroughly
clean
all parts
removing
all old
contaminated grease.
6. Install new bottom bearing first.
7. NOTE: The bearing is sealed/shielded
on one
side only. The bottom
bearing must be installed
with the sealed/shielded
side DOWN.
8. Insert
spindle
shaft
up through
the
bottom
bearing. Slide spacer down over spindle shaft.
9. Install new top bearing. Install the top bearing
with the seal/shield UP.
10. Slide circular retaining ring down spindle shaft
until it fully locks into groove on shaft.
11. Apply a generous
amount of general-purpose
grease to the concave side of the nyIos seal. Install
the nylos seal with concave greased side down.
12. Place
spindle
pulley
and spacer
on top of
spindle shaft.
13. Reinstall
blade bolt, washer,
blade and four
spacers. See Figure 5.6.
14. Torque blade bolt and nut to 70 to 80 ft. Ibs.
15. Pump grease into spindle housing until grease
purges from vent on housing.
16. After the first
5 hours of operation,
grease
spindle housing to insure it is full, then every 25
hours.
IMPORTANT:
Spindle
housing must be filled
with
grease
before
operating
mower.
Failure
to
fill
housing will cause premature bearing failure.
I
BEARING
I
SEAL UP
I
EARING SEAL
DOWN
O--------
PULLEY
_1
SPACER
i_
NYLOS SEAL
O
O"
RETAINING RING
OO"
BEARING
_
SPINDLE
HOUSING
_
SPACER
_t-
BEARING
SPINDLE
SHAFT
FIGURE 5.8
26
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