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TORO GM 345/325-D Cutting Units
Notes
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75
Cutting Units
Maintenance and Service
Spindle service
If noisy operation of the cutting unit is encountered and the blade spindles need to be repaired, refer to the
complete repair procedures in the service manual.
The replacement bearing set consists of:
1. The upper and lower bearings races.
2. A snap ring spacer that positions the bearing races in the spindle housing.
3. An outside spacer to set the distance between the bearing races.
4. Two bearings.
5. An inside bearing spacer and an inside spacer ring.
• The inside spacer and the spacer ring position the bearings and set the running clearance.
(NOTE: there in no groove in the shaft that the small ring sets in).
If the spindle does not rotate after assembly, verify that all the spacers and rings are properly installed.
The bearings, races, spacers and snap rings are a matched set and should not be intermixed.
IMPORTANT: If a new spindle housing is being used, new bearings and the matched snap ring set must
be installed. Never use the old bearings, spacer, and snap ring with a new spindle housing. By contrast,
use only new bearings with cups and spacer when installing bearings into a used spindle housing that
still has a snap ring installed.
Seal replacement
When replacing the spindle seals be careful to install the seals with the seal lips facing in the correct direction.
72” Recycler Deck
1. The upper seal lip faces inward toward the upper bearing.
2. The lower seal lip faces outward, away from the lower bearing.
72” Rear Discharge & Side Discharge
1. The upper seal lip faces outward away from the upper bearing.
2. The lower seal lip faces outward, away from the lower bearing.