caution - Toro
caution - Toro
caution - Toro
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8. Remove and discard back--up gaskets and pressure<br />
seals from wear plates.<br />
9. Turn front flange over, with seal side up.<br />
IMPORTANT: Make sure not to damage the front<br />
flange counter bore when removing the seals from<br />
the front flange.<br />
3<br />
2<br />
10.Carefully remove dust seal, retaining ring, flange<br />
washer and shaft seal from the front flange (Fig. 74).<br />
Discard seals.<br />
1<br />
Inspection<br />
1. Remove any nicks and burrs from all parts with<br />
emery cloth.<br />
1. Gear shaft spline<br />
2. Gear shaft<br />
4<br />
Figure 73<br />
3. Gear teeth<br />
4. Gear face edge<br />
CAUTION<br />
1<br />
2 3<br />
4<br />
Use eye protection such as goggles when using<br />
compressed air.<br />
2. Clean all parts with solvent. Dry all parts with compressed<br />
air.<br />
Hydraulic<br />
System<br />
3. Inspect drive gears and idler gears for the following<br />
(Fig. 73):<br />
A. Gear shafts should be free of rough surfaces and<br />
excessive wear at bushing points and sealing areas.<br />
Scoring, rough surfaces or wear on gear shafts indicates<br />
need for replacement.<br />
B. Gear teeth should be free of excessive scoring<br />
and wear. Any broken or nicked gear teeth must be<br />
replaced.<br />
C. Inspect gear face edge for sharpness. Sharp<br />
edges of gears will mill into wear plates and, thus,<br />
must be replaced.<br />
4. Inspect wear plates for the following:<br />
A. Bearing areas should not have excessive wear or<br />
scoring.<br />
B. Face of wear plates that are in contact with gears<br />
should be free of wear, roughness or scoring.<br />
C. Thickness of wear plates should be equal.<br />
5. Inspect front flange and rear cover for damage or<br />
wear.<br />
1. Dust seal<br />
2. Retaining ring<br />
Assembly (Fig. 71)<br />
Figure 74<br />
3. Flange washer<br />
4. Shaft seal<br />
NOTE: When assembling the motor, check the marker<br />
line on each part to make sure the parts are properly<br />
aligned during assembly.<br />
1. Lubricate O--rings, pressure seals, back--up gaskets<br />
and wear plate grooves with a thin coat of petroleum jelly.<br />
Lubricate all other internal parts freely with clean hydraulic<br />
oil.<br />
2. Install new seals into front flange (Fig. 74):<br />
A. Press shaft seal into front flange until it reaches<br />
the bottom of the bore.<br />
B. Install flange washer into front flange and then<br />
install retaining ring into the groove of the front<br />
flange.<br />
C. Install new dust seal into front flange.<br />
3. Place front flange, seal side down, on a flat surface.<br />
Groundsmaster 4100--D<br />
Page 4 - 105<br />
Hydraulic System