Blade Spindle Service - Toro Groundsmaster 300 Series Service Manual

Blade Spindle Service (Fig. 29, 30, 31)
Removing Spindle Housing Assembly
1. Lower the cutting unit, shut the engine off and engage
the parking brake.
2. Remove deck covers from top of cutting unit. Release
belt tension. Remove belt from spindle to be serviced.
3. Start the engine and raise the cutting unit. Turn the
engine OFF and remove the key from the key switch.
Block up the cutting unit so it cannot fall accidentally.
4. Using a rag or thickly padded glove, grasp end of
blade. Remove blade screw, flat washer, anti-scalp cup
and blade from spindle assembly.
5. Remove flange nuts and carriage bolts securing
spindle housing to deck. Slide spindle housing assem-
bly out the bottom of the cutting unit.
Disassembly
1. Remove lock nut retaining the spindle pulley on
spindle shaft. Slide pulley off of shaft.
2. Press the spindle shaft out of the spindle housing
using an arbor press. The bearing spacer remains on
the spindle shaft as the shaft is being removed.
3. Remove seals from spindle housing.
4. Allow the bearings and small thick spacer to fall out
of the spindle housing.
5. Using a punch and hammer, drive both of the bearing
cups out of the spindle housing. Also drive the large
spacer out of the housing.
6. A large snap ring is still inside the spindle housing and
it should remain there because it cannot be easily
removed.
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.
Repairs
1. Grease fitting
2. Lock nut
3. Spindle pulley
4. Wave seal
5. Bearing assembly
6 Carriage bolt
7. Flat washer
8. Spindle housing
Page 13 - 22
Figure 29
9. Flange nut
10. Spindle shaft
11. Spindle shaft spacer
12. Blade
13. Anti-scalp cup
14. Lock washer
15. Blade screw
®
Groundsmaster 300 Series