Toro Groundsmaster 300 Series Service Manual page 371

Installing Gear Case and Drive Pulley
1. Install bracket (Item 18) on each side of gear case
with capscrews and lockwashers. Tighten capscrews to
a torque of 20 - 26 ft-lb. Install gear case and bracket
assembly to mount plate (Item 22) with carriage bolts
and flange nuts.
2. To install pulley (Item 26) and slide taper lock
(Item 27), small end first, into pulley hub.
3. Insert woodruff key (Item 24) into keyway in gear case
shaft. Slide pulley with taper lock onto gear case shaft
while aligning key and keyway.
NOTE: Large hub on pulley must face away from gear
case, and like the taper lock, the pulley must contact the
shoulder on the gear case shaft.
4. Rotate pulley to get non-threaded holes in taper lock
to line up with the two threaded holes in hub of gear case
pulley. Start threading setscrews (Item 28) into the two
holes and tighten setscrews alternately and evenly until
both setscrews are tight.
5. Using a brass drift pin or a sleeve and hammer, hit
taper lock firmly. Now tighten setscrews to 55 in-lb.
®
Groundsmaster 300 Series
Continue to hit taper lock and tighten set screws until
55 in-lb of torque will not turn the setscrews.
6. Check alignment of gear case with a spindle pulley.
Loosen and relocate taper lock to adjust, if necessary.
7. Fill recessed socket head in each setscrew, and the
other taper lock holes, with grease to prevent dirt from
packing into the holes.
8. Mount gear case with brackets onto top of gear case
mount plate (Item 22) with carriage bolts and
flange nuts.
9. Mount gear case mount plate to cutting unit with
carriage bolts and flange nuts.
10. Install drive belt onto gear case pulley and adjust
belt tension.
11. Install belt covers.
12. Install drive shaft to gear box and secure with a new
roll pin.
13. Remove gear case fill plug and check plug. Add SAE
80W90 API GL-5 gear lube until level is to the bottom of
check plug hole. Install plugs in gear case.
Figure 42
Page 12 - 27 Repairs