GB - 24
Replacing Mower Spindle Bearings - 48-Inch
Mower Deck
1. Turn the engine off. Remove the ignition key. Remove
the ignition wire from the spark plugs.
2. Remove engine-to-deck drive and spindle drive belts.
3. Remove mower blades.
4. Remove pulleys:
•
Left Spindle: Remove nut, flat washer and pulley.
•
Center Spindle: Remove nut, drive pulley and spindle
pulley.
•
Right Spindle: Remove nut, flat washer pulley and
spacer.
5. Remove spindle shaft, lower bearing and spacer from
spindle housing. Discard bearing.
6. Remove and discard upper bearing.
7. Clean entire assembly.
8. Install a new lower bearing and spacer on the spindle
shaft.
9. Install the spindle shaft, lower bearing and spacer into
the spindle housing.
10. Install the upper bearing.
11. Install upper pulleys:
•
Left Spindle: Install pulley, spacer and nut. Tighten nut
to 115 N•m (85 lb.-ft).
•
Center Spindle: Install spindle pulley, drive pulley and
nut. Tighten nut to 115 N•m (85 lb.-ft).
•
Right Spindle: Install spacer, pulley and nut. Tighten
nut to 115 N•m (85 lb.-ft).
12. Install mower blade, blade washers and blade bolt
assembly. Tighten nut to 163 N•m (120 lbf.-ft).
Replacing Caster Pivot Bearing Bushings
1. Turn the engine off. Remove the ignition key. Remove
the ignition wire from the spark plugs.
2. Raise and securely support the front of the mower
deck.
3. Remove lynch pin, spacer bushings, washer and
caster yoke and wheel assembly.
4. Remove and discard upper and lower bushings.
5. Install new bushings.
6. Install caster yoke and wheel assembly, washer,
spacer bushings and lynch pin.
7. Apply grease to lubrication fitting.
1. Left Spindle
2. Center Spindle
3. Right Spindle
4. Nut
5. Flat Washer
6. Drive Pulley
7. Spindle Pulley
8. Spacer
9. Upper Bearing
10. Spindle Housing
11. Spindle Spacer
12. Lower Bearing
13. Spindle Shaft
IMPORTANT: The clearance between the lower bearing
and the housing is only 0.05 mm (0.002 in.). Do not force
bearing into housing.
IMPORTANT: Do not allow washer to sit on caster yoke.
It must be on top of height-of-cut spacer bushings.
Summary of Contents for 988410
Page 29: ......
