Installation Instructions

ManualsBrandsToro ManualsAttachmentsDrum Rebuild Kit, Greensmaster Flex 21 Cutting Unit

Printed in the USA

 2003 by The Toro Company

8111 Lyndale Avenue South

Bloomington, MN 55420-1196

Drum Rebuild Kit

Greensmaster



Flex 21

Part No. 107–9025

Form No. 3351–298

Installation Instructions

Note: On machines with serial numbers prior to

210009999, the Drum Cover Update Kit, Part No.

107–9026 must be also be installed on the machine.

Obtain the kit from your Authorized Toro Distributor.

Note: If the Transport Kit, Part No. 105–9900 has been

installed the Drum Cover Update Kit is not required.

1. Position the machine on a clean, level surface.

Remove transport wheels, if so equipped.

2. Remove the capscrew, washer, spacer and nut securing

the traction drive belt covers to each side of the

machine (Fig. 1) . Retain the fasteners, covers and

spacers.

Figure 1

1. Traction drive belt cover

2. Capscrew & washer

3. Spacer

4. Nut

3. Release the belt tension and remove the traction drive

belts from the sides of the machine (Fig. 2).

4. Remove the locknut (18mm socket), large washer,

small pulley and woodruff key from each end of the

differential shafts (Fig. 2). Retain the keys, washers

and locknuts.

5. Loosen the set screws securing the flange bearing

locking collars to each end of the differential shafts

(Fig. 2). Loosen the collars.

6. Remove the capscrews, washers and nuts securing the

bearing flangettes and the bearings to the side plates

(Fig. 2).

7. Remove the flangettes, bearings and locking collars.

Retain the bearing flangettes and fasteners (Fig. 2).

Figure 2

1. Traction drive belt

2. Locknut

3. Large washer

4. Small pulley

5. Woodruff key

6. Bearing locking collar

7. Bearing flangette

8. Bearing

8. Remove the fasteners securing the engine mounting

straps to the frame. Retain the fasteners.

9. Slide the engine/gearbox assembly towards the left

side of the machine until the right end of the

differential shaft clears the sideplate.

10. Place a flangette, a new extended race bearing (set

screw end away from the engine/gearbox) and another

flangette onto the end of the left differential shaft as

shown in figure 3.

Figure 3

1. Locknut

2. Large washer

3. Small pulley

4. Bearing flangette

5. Bearing

Summary of content (4 pages)

PAGE 1
Form No. 3351–298 Drum Rebuild Kit Greensmaster Flex 21 Part No. 107–9025 Installation Instructions Note: On machines with serial numbers prior to 210009999, the Drum Cover Update Kit, Part No. 107–9026 must be also be installed on the machine. Obtain the kit from your Authorized Toro Distributor. 8 6 7 5 2 3 Note: If the Transport Kit, Part No. 105–9900 has been installed the Drum Cover Update Kit is not required. 4 1. Position the machine on a clean, level surface.
PAGE 2
11. Slide the engine/gearbox assembly to the right and repeat the process. 12. Move the engine/gearbox assembly back onto the frame and loosely secure it to the frame with the fasteners previously removed. Do not tighten the fasteners. 1 13. Loosely install the flangettes and bearings to the inside of each side plate with the capscrews, washers and nuts previously removed (Fig. 3). 14. Make sure the engine/gearbox assembly is positioned so the differential shafts are aligned with the frame.
PAGE 3
28. Hand press a rubber cased oil seal into the inside of each drum half as shown in figures 6&7. 31. Place a rubber v–ring onto each end of the new drum spindle (Fig. 6). Locate v–ring as shown in figure 7. Note: The seal spring is to be positioned toward the bearing. 32. Press a new bearing onto each end of the spindle (Fig. 6) Do not press on the outer race of the bearing. 33. Insert the spindle assembly into one of the drum halves. 5 34.
PAGE 4
Note: The shaft with the “R“ stamped on the flat goes on the right side of the machine. 45. Lift the drum assembly up into the frame, insert the drum shafts into the drums and tighten the shafts. Note: Rotate the right drum shaft clockwise and the left shaft counter clockwise. Torque the shafts to 65–75 ft/lbs. 46. Tighten the fasteners securing the bearing flangettes to the side plates (Fig. 8). 47. Tighten the flange bearing set screws (2 each). 48.