Drive Belt Replacement

The blade drive belt, tensioned by the spring loaded idler, is very durable. However, after many hours of use, the belt will show signs of wear. Signs of a worn belt are: squealing when belt is rotating, blades slipping when cutting grass, frayed edges, burn marks and cracks. Re­ place the belt if any of these conditions are evident.

1.Lower cutting unit to the shop floor. Remove belt covers from top of cutting unit and set covers aside.

2.Unhook spring from idler arm bracket to release belt tension. Remove cotter pin and clevis pin securing idler arm bracket to idler arm.

3.Remove (2) capscrews and nuts securing front of gear box plate to deck channels.

4.Loosen (2) capscrews and nuts securing rear of gear box plate to deck channels and raise front of gear box plate to access belt.

5.Remove old belt from around spindle pulleys and thru idler pulley assembly.

6.Route new belt around spindle pulleys and thru idler pulley assembly, as shown in figure 21.

7.Reposition gear box plate on deck channels while routing belt around gear box pulley. Mount gear box plate to deck channels with capscrews and nuts pre­ viously removed.

8.Reinstall idler arm bracket to idler arm with cotter pin and clevis pin. Hook spring onto idler arm bracket. To as­ sure there is proper tension on drive belt, spring should be extended to a length of approximately 7.00 inch (178 mm). If spring is not extended to this length, relocate spring rod to a new mounting holes further away from from belt.

9.Reinstall belt covers.

2

1

3

Figure 19

1.Spring

2.Idler Arm

3.Idler Arm Bracket

1

2

Figure 20

1.Gear Box Plate

2.Capscrews & Nuts

Figure 21

72 inch Cutting Units

Page 11 – 12

Groundsmaster 3000/3000–D

Page 216
Image 216
Toro 3000D manual Gear Box Plate Capscrews & Nuts