Toro Groundsmaster 3505-D Service Manual page 95

IMPORTANT: Note position of the open and closed
side of the wear plates before removing. Also, iden-
tify wear plates (front and rear) for proper re-
assembly. Do not scribe wear plates.
8. Carefully remove rear wear plate, idler gear, drive
gear and front wear plate from the front plate.
9. Remove and discard back--up gaskets and pressure
seals from wear plates.
IMPORTANT: Make sure not to damage the front
plate counter bore when removing the components
from the front plate.
10.Turn front plate over, with seal side up and carefully
remove the seal, retaining ring, washer and shaft seal.
Discard seals.
11. If necessary, remove anti--cavitation and relief
valves from back plate.
Inspection
1. Remove any nicks and burrs from all parts with
emery cloth.
CAUTION
Use eye protection such as goggles when using
compressed air.
2. Clean all parts with solvent. Dry all parts with com-
pressed air.
3. Inspect drive gears and idler gears for the following
(Fig. 42):
A. Drive gear shaft spline should be free of twisted or
broken teeth.
B. Gear shafts should be free of rough surfaces and
excessive wear at bushing points and sealing areas.
Scoring, rough surfaces or wear on gear shafts indi-
cates need for replacement.
C. Gear teeth should be free of excessive scoring
and wear. Any broken or nicked gear teeth must be
replaced.
D. Inspect gear face edge for sharpness. Sharp
edges of gears will mill into wear plates and, thus,
must be replaced.
4. Inspect wear plates for the following:
A. Bearing areas should not have excessive wear or
scoring.
Groundsmaster 3505--D
B. Face of wear plates that are in contact with gears
should be free of wear, roughness or scoring.
C. Thickness of wear plates should be equal.
5. Inspect front plate and back plate for damage or
wear.
1
1. Gear shaft spline
2. Gear shaft
Assembly (Fig. 40)
NOTE: When assembling the motor, check the marker
line on each part to make sure the components are prop-
erly aligned during assembly (Fig. 41).
1. Lubricate new o--rings, pressure seals, back--up
gaskets and wear plate grooves with a thin coat of petro-
leum jelly. Lubricate all other internal parts freely with
clean hydraulic oil.
2. Install new shaft seal in front plate. Seal should be
pressed into place until it reaches the bottom of the bore.
3. Install washer and then retaining ring into the groove
of the front plate. Press seal into front plate.
4. Place front plate, seal side down, on a flat surface.
5. Install the backup gaskets into the grooves in the
wear plates. Follow by carefully placing the pressure
seals to the backup gaskets and wear plate.
6. Apply a light coating of petroleum jelly to the exposed
side of the front plate.
7. Lubricate the drive gear shaft with clean hydraulic oil.
Insert the drive end of the drive shaft through the front
wear plate with the pressure seal side down and the
open side of the pressure seal pointing to the inlet side
of the motor. Carefully install drive shaft into front plate.
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2
4
Figure 42
3. Gear teeth
4. Gear face edge
Hydraulic System