Engine Pulley Yoke Bearing Replacement; Pto Brake Replacement - Toro Groundsmaster 300 Series Service Manual

Engine Pulley Yoke Bearing Replacement (Fig. 10)
1. Position the machine on a level surface, turn the
engine off, remove the key from the ignition switch, and
engage the parking brake.
2. Remove the drive coupling as described in "Remov-
ing Drive Couplings".
3. Remove the engine hub from the crankshaft pulley
after loosening the two setscrews that secure it in place.
Remove the woodruff key.
4. Use a thin screwdriver to remove the external retain-
ing ring that secures the bearing onto the crankshaft
pulley shaft.
5. Remove the two cap screws and spacers that secure
the large yoke to the bearing collar.
6. Use a pry bar to carefully remove the bearing and
bearing collar from the crankshaft pulley shaft.
Figure 10
7. Remove the bearing from the bearing collar after
removing the large internal snap ring from the bearing
collar. An arbor press should be used to press the
bearing out of the collar.
8. After bearing service, reinstall the components in
reverse order.
9. Lubricate the bearing with No. 2 general purpose
lithium base grease.
PTO Brake Replacement (Fig. 11)
1. Lower the implement to the shop floor, turn the engine
off, remove the key from the ignition switch, and engage
the parking brake.
2. Move the P.T.O. lever to the ENGAGE position to
move the pulley away from the brake.
3. Remove the locknut holding the brake onto the
mounting pin. Slide the spacer, brake and spring off of
the pins.
4. Reverse procedures to install the brake.
5. Adjust the brake as described in "Adjusting the P.T.O.
Brake".
Figure 11
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Repairs Page 9 - 8 Groundsmaster 300 Series