Toro ProCore SR Series Service Manual page 62

Gearbox Installation (Fig. 17)
IMPORTANT: If a gearbox is incorrectly assembled
or installed (e.g. output shaft installed into gearbox
in reverse direction or gearbox placed on frame up-
side down), there is a possibility that gearbox out-
put shaft rotation will be incorrect for proper aerator
operation. After placing the gearbox on the frame,
make sure that rotation of the input shaft results in
the correct output shaft rotation direction. Figure 19
shows correct shaft rotation direction for the SR54
and SR54S. Figure 20 shows correct shaft rotation
direction for the SR70 and SR70S. If rotation is in-
correct, check gearbox assembly and installation
before proceeding with installation procedure.
CAUTION
To prevent personal injury, make sure that gear-
box is supported as it is installed to the machine.
See Specifications in this chapter for gearbox
weight.
1. Position gearbox to aerator frame. Secure gearbox
to frame with four (4) cap screws and lock washers.
Coring Head (SR54 & SR70)
2. On SR70 aerators, secure gearbox flanges to aera-
tor frame brackets with bolts and lock nuts (Fig. 18).
3. Install sprocket and sprocket hub to both gearbox
output shafts (see Coring Head Drive Sprockets Assem-
bly in this section).
4. Install both drive chains (see Coring Head Drive
Chain Assembly in this section). Make sure that drive
chain is properly adjusted after assembly.
5. Position driveshaft shield (item 19) to gearbox and
secure with four (4) cap screws, lock washers and flat
washers.
6. Connect PTO driveshaft to gearbox input shaft (see
PTO Driveshaft Installation in the Service and Repairs
section of Chapter 3 -- Chassis).
7. Fill gearbox with proper lubricant (see Operator's
Manual).
8. Install screens to aerator (see Covers Installation in
the Service and Repairs section of Chapter 3 -- Chas-
sis).
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