Toro ProCore SR Series Service Manual page 61

Gearbox Removal (Fig. 17)
1. Position aerator on a firm, level surface. If aerator is
attached to tractor, disengage PTO, apply tractor park-
ing brake, stop engine and remove key from the ignition
switch.
2. Remove screens from aerator frame (see Covers
Removal in the Service and Repairs section of Chapter
3 -- Chassis).
3. Drain lubricant from gearbox.
4. Disconnect PTO driveshaft from gearbox input shaft
(see PTO Driveshaft Removal in the Service and Re-
pairs section of Chapter 3 -- Chassis).
5. Remove four (4) cap screws, lock washers and flat
washers that secure driveshaft shield (item 19) to gear-
box. Remove shield.
6. Remove drive chains from gearbox sprockets (see
Coring Head Drive Chain Disassembly in this section).
7. Remove drive sprocket and sprocket hub from both
gearbox output shafts (see Coring Head Drive Sprock-
ets Disassembly in this section).
8. On SR70 aerators, remove saddle bolts and lock
nuts that secure gearbox flanges to aerator frame brack-
ets (Fig. 18).
9. Remove four (4) cap screws and lock washers that
secure gearbox to aerator frame.
CAUTION
To prevent personal injury, make sure that gear-
box is supported as it is removed from the ma-
chine. Refer to Specifications in this chapter for
gearbox weight.
10.Carefully remove gearbox from machine.
NOTE: For gearbox disassembly and assembly infor-
mation, refer to the Service and Repairs section of
Chapter 7 -- Gearbox Service.
ProCore SR Series
PROCORE SR70
2
1. Gearbox
2. Saddle bolt (8 used)
PROCORE SR54
RIGHT
PROCORE SR70
Page 4 - - 23
FRONT
2
1
Figure 18
3. Lock nut (8 used)
FRONT
Figure 19
RIGHT FRONT
Figure 20
Coring Head (SR54 & SR70)
3