Driveline Repair - Snapper FM7300 Safety Instructions & Operator's Manual

SECTION 5 - ADJUSTMENTS & REPAIR
4.3 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 4.5.
REMOVE NUT L . REMOVE BELT
_ _ __/FROM SPINDLE
._-j_---___-_,
o,,o0
FIGURE 4.5
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 4.6.
@
......................... BEARING O._- PULLEY
....,S,,E,A.L,.U.P. ....... - KRETAINING
RING
_O--.-..._ BEARING
SPINDLE _
_
HOUSING
INNER RACE _}
BEARING -_O €
i ...............................
BEARING SEAL
DOWN
FIGURE 4.6
5. Thoroughly clean all parts removing all old
contaminated grease.
6. Install new bottom bearing first.
4.4
NOTE: The bearing is sealed/shielded on one side
only. The bottom bearing must be installed with
the sealed/shielded side DOWN.
7. Insert spindle shaft up through the bottom
bearing. Slide spacer down over spindle shaft.
8. Install new top bearing. Install the top bearing
with the seal/shield UP.
9. Slide circular retaining ring down spindle shaft
until it fully locks into groove on shaft.
10. Place spindle pulley and spacer on top of
spindle shaft.
11. Reinstall blade bolt, washer, blade and four
spacers.
12. Torque blade bolt and nut to 60 to 75 ft. Ibs.
IMPORTANT: Spindle housing must be filled
with grease before operating mower, Failure to
fill housing will cause premature bearing
failure,
13. Pump grease into spindle housing until grease
purges from vent on housing.
14. After the first 5 hours of operation, grease
spindle housing to insure it is full, then every 25
hours.
DRIVELINE REPAIR
The driveline shielding system is critical to the
safety of the operator and others. Inspect the
driveline shield and mower shield. If the driveline
guard does not rotate freely from the shaft,
displays signs of deterioration or damage, or the
safety signs are missing or illegible, parts must be
repaired or replaced.
4.4.1. Driveline Shield.
The driveline shields will have to be removed to
replace shield components, shield bearings, or U-
joint bearings.
1. Disconnect driveline from tractor and mower.
Slide driveline apart. Work on one end at a time.
NOTE: Tractor end flexible cone, shield bearings
and plastic tubes are different from those on the
mower end.
2. Locate three locking tabs in flexible cone. While
pushing down on cone, press in the three locking
tabs. Slide cone down on plastic tube when
unlocked. See Figure 4.7.
3 LOCKING TABS
PLASTIC LOCATED AROUND
SMALL END OF CONE
SHIELD j
TRACTOR'
END
FLEXIBLE
FIGURE 4.7 CONE
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