Deck Motor Repair (P/N 94-4907) - Toro Groundsmaster 580-D Service Manual

Deck Motor Repair
Body
1. Hex nut
2. Flat washer
3. Shaft seal
Disassembly
1. Use a marker or scribe to make a line across the body
and mounting flange for proper reassembly (put mark
along drive shaft side of body and flange as shown).
2. Remove key (8) from shaft.
3. Remove nuts (1) and washers (2).
4. Use a soft face hammer to lightly tap the mounting
flange to disengage it from the body. Slide the flange off
of the shaft.
5. Remove O-ring seal (5).
5. Remove retaining ring (6) and push the shaft seal (3)
squarely out of the mounting flange, taking care not to
damage any sealing surfaces.
NOTE: Before disassembling internal components,
mark the load plates for proper reassembly. Mark on an
area away from the seal location. Mark "F" for flange end
and "B" for body end.
Groundsmaster 580-D
(P/N 94-4907)
7
4
Gears
Mark before disassembling
Drive Shaft
4
8
5
Torque to 70 + 5 ft-lbs
Figure 35A
4. Load plate
5. O-ring seal
6. Retaining ring
6. With the motor lying on its side, hold the driveshaft
and pull it squarely out of the body bringing the load
plates (4) with it.
7. Remove the load plates (4) from the gears. Remove
the load seals (7) from the load plates.
Inspection and Repair
1. Wash each of the components with cleaning solvent
or mineral spirits and dry with a lint free cloth or com-
pressed air.
2. Body: Inspect the body bore cut-in where gears wipe
into the body. The cut-in should be bright and polished
in appearance with a depth of less than .08 mm. Replace
the motor if the surface is scored, has a matt appear-
ance or shows signs that the tip of the gears have dug
in and torn away the surface material. Inspect for dam-
age to port threads and body O-ring recesses.
Page 4 - 40.1 Rev. A
7
Mounting flange
2
1
7. Load seal
8. Square key
* Seal Kit (Items 3, 5-8)
PTO System Repairs
3
6