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 | REMOVE BELT |
| FROM SPINDLE |
|
|
REMOVE BLADE
BOLT
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.
| PULLEY |
|
|
BEARING | RETAINING RING |
SEAL UP | |
| BEARING |
| |
SPINDLE |
|
HOUSING |
|
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. lbs.
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.
4.4DRIVELINE 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.
INNER RACE |
| |
|
| |
BEARING | BEARING SEAL | |
DOWN | ||
| ||
|
|
SPINDLE 
SHAFT
FIGURE 4.6
PLASTIC TUBE
SHIELD BEARING
TRACTOR
END
FIGURE 4.7
3 LOCKING TABS LOCATED AROUND SMALL END OF CONE
FLEXIBLE
CONE
5.Thoroughly clean all parts removing all old contaminated grease.
6.Install new bottom bearing first.
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