Gearbox Removal And Installation - Toro Groundsmaster 300 Series Service Manual

Gearbox Removal and Installation (Fig. 25, 26)
Removing Gearbox and Drive Pulley
1. Lower cutting unit to shop floor, stop the engine and
engage the parking brake. Remove belt covers from top
of cutting unit.
2. Remove shroud (Item 9) covering universal drive
shaft. Disconnect drive shaft from gearbox.
DANGER
Do not start the engine and engage the P.T.O.
when the P.T.O. shaft is not connected to the
gearbox. If engine is started and the P.T.O.
shaft is allowed to rotate, serious in ury could
result.
3. Disconnect spring from idler arm bracket to release
belt tension. Remove cotter pin and clevis pin securing
idler arm bracket to idler arm.
®
Groundsmaster 300 Series
4. Remove capscrews and nuts securing gear box plate
(Item 10) to deck channels.
5. Remove the set screws (Item 19) from the taper lock
bushing (Item 18). Install one setscrew into the hole that
is threaded on the side of taper lock. Tighten the set-
screw until the taper lock is loose from the inside of the
pulley hub.
NOTE: Only one setscrew is used to loosen the
taper lock.
6. Slide the gearbox pulley (Item 17) and taper lock off
of the gearbox output shaft. Account for the woodruff key
that positions the pulley on the shaft, and remove the
setscrew from the side of the taper lock.
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7. Disassemble fasteners securing gear box to gear box
mount plate and remove gearbox. Remove brackets
(Items 6, 13) from gear box.
Figure 25
Page 13 - 17 Repairs