Belt Adjustment, Belt Replacement, Belt Diagrams

7.Spindle Assembly - Apply 3 shots of multi- purpose grease with grease gun every 40 hours. Grease fittings for spindles are accessible through holes in the shields.

4-3 BELT ADJUSTMENT

Belt tensions should be checked every 40 hours to get maximum life from drive belts and best perfor- mance from the cutter. Belt tension is adjusted by increasing or decreasing the length of the spring on the moveable idler. For proper belt tension on the mower, the spring lengths should be set at 2-7/8”. (Figure 4-1 C) To adjust the spring length, loosen or tighten the 3/8” hex nuts on the spring adjustment rod until the correct spring length is reached.

Figure 4-1C 1/2” Hex Nuts - Spring Length Adjustment

(7) 40 Hours

EFM 480

FRONT

1/2” Nuts

4-4 BELT REPLACEMENT

Use only genuine Bush Hog replacement parts. A. Remove right and left side shields.

B. Relieve spring tension by loosening the two 1/2” hex nuts on the spring adjustment rod. (Figure 4-1 C)

C. Remove old belt.

D. Install new belt as shown below. (Also refer to the decal on underside of belt shield) Be sure that the belt is properly positioned in all sheave grooves.

E. Adjust tension on the belt by adjusting the length of the spring on the moveable idler. The cor- rect spring length is 2-7/8”.

F. Replace all shields before operating machine.