Safety

Switch

Self-Tapping

Screw

Lower

Belt Guard

Self-Tapping

Screws

Figure 12

Remove the safety switch from the front of the outer housing by removing the two self-tapping screws. See Figure 12.

Remove the two hex bolts and hex lock nuts which extend through the housing. Lift the flail screen out of the housing. Refer to Figure 10.

Remove the outer housing and housing blades by removing the fourteen self-tapping screws.

Remove the hex bolt, lock washer, and flat washer that secures the impeller assembly to the crankshaft. See Figure 13.

Hex Bolt

Impeller

Lock Washer

Flat Washer

Assembly

Figure 13

Thread the special impeller tool into the crankshaft. Stop when the impeller assembly can move on the crankshaft.

If the old belt is still on the unit, cut belt to remove from unit.

Remove the impeller assembly from the crankshaft and unthread the special impeller tool from the impeller assembly.

Remove the inner housing and mounting adapter by removing the five hex bolts and two hex nuts. See Figure 14.

Hex Bolts

Hex Bolts

Figure 14

Insert the new belt between the frame and transmission pulley. It may be necessary to use a screwdriver to pry the frame away from the pulley in order to insert the belt. Being careful not to damage the pulley, apply a slight upward pressure and place belt around transmission pulley.

See Figure 15.

Belt Guard

Mounting

Spring

Adapter

 

Idler

Idler

Bracket

 

Frame

 

 

Transmission Pulley

Figure 15

Press down on the belt guard spring by the idler pulley and release spring from the slot on the idler bracket. Place the belt on the idler pulley and place belt guard spring back into the slot on the idler bracket. See Figure 15.

Place the mounting adapter against the engine and make sure the hole in the mounting adapter is facing up.

Place the inner housing against mounting adapter and frame. Secure with the five hex bolts and two hex nuts previously removed. Refer to Figure 14.

Slide the impeller assembly onto the crankshaft and place a screwdriver under the belt. Turn the impeller assembly counterclockwise to seat the belt into the slot on the impeller. Make sure the belt is routed inside all belt guards.

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MTD 203 manual Safety