4.
5.
Loosen cap screws from the rear cover.
3. Inspect drive gears and idler gears for the following
(Fig. 77):
Remove motor from the vise. Turn motor so that the
shaft end is facing down. Remove cap screws.
A. 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.
6.
motor.
Separate rear cover from body. Lift rear cover from
7.
Carefully remove body. Lift body straight up to re-
B. Gear teeth should be free of excessive scoring
and wear. Any broken or nicked gear teeth must be
replaced.
move. Make sure the rear wear plate remains on the
drive and idler gear shafts. Remove and discard O--
rings from the body. Locate and retrieve dowel pins.
C. Inspect gear face edge for sharpness. Sharp
edges of gears will mill into wear plates and, thus,
must be replaced.
IMPORTANT: Note position of the open and closed
side of the wear plates before removing. Also, iden-
tify wear plates (front and rear) with a marker for
proper assembly.
4. Inspect wear plates for the following:
IMPORTANT: Mark the relative positions of the gear
teeth and the wear plates so they can be reassem-
bledinthesameposition.Donottouchthegearsur-
faces as residue on hands may be corrosive to gear
finish.
A. Bearingareasshouldnothaveexcessive wearor
scoring.
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.
8.
Carefully remove rear wear plate, idler gear, drive
gear and front wear plate from the front flange.
5.
Inspect front flange and rear cover for damage or
wear.
9.
Remove and discard back--upgaskets and pressure
seals from wear plates.
2
3
10.Turn
front flange over, with seal side up.
1
4
IMPORTANT: Make sure to not damage the front
flange counter bore when removing the seals from
the front flange.
11.
Carefully remove dust seal, retaining ring, flange
washer and shaft seal from the front flange (Fig. 76).
Discard seals.
Inspection
Figure 76
1.
2.
Dust seal
Retaining ring
3.
4.
Flange washer
Shaft seal
1.
Remove any nicks and burrs from all parts with
emery cloth.
3
CAUTION
2
Use eye protection such as goggles when using
compressed air.
2.
Clean all parts with solvent. Dry all parts with com-
pressed air.
1
4
Figure 77
1.
2.
Gear shaft spline
Gear shaft
3.
4.
Gear teeth
Gear face edge
Groundsmaster 4500--D/4700--D
Page 4 -- 93
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro Groundsmaster 30857, Toro Groundsmaster 30858, Toro Groundsmaster 4500 D, Toro Groundsmaster 4700 D |
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| Document Type | Service Manual |
| Language | English |
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