MTD 31AE663H401 manual Final Adjustments, Model 663H, Chute Directional Control Support Bracket

If the spiral on the chute directional control cannnot be adjusted properly, follow the steps below:

•Loosen the two hex nuts which secure the chute directional control support bracket (see Figure 8) to the snow thrower housing, beside the discharge chute.

Carriage Bolts

Hex Lock Nuts

Chute Directional

Control

Support Bracket

Figure 8

•Remove the hairpin clip and one flat washer from the lower end of the chute directional control. Leave the other flat washer in place on the end of the rod.

Hairpin Clip Plastic Bushing

Chute Crank

Flat Washer

Lower Chute	Flat Washer
Crank Bracket

Figure 9

•Insert the lower end of the chute directional control into the hole in the plastic bushing in the chute directional control support bracket. See Figure 8.

•Place the other flat washer onto the end of the chute directional control, and secure with hairpin clip. See Figure 9.

•Tighten the nuts on the chute directional control support bracket securely.

•Adjust the eyebolt on the chute directional control so the chute directional control does not touch the engine.

•Move the hex nut against the handle (if necessary).

•Tighten wing nut with eye bolt to secure chute directional control.

Model 663H

For packaging purposes, the two-piece chute directional control was attached to the snow thrower on the two ends, but was kept loose at the middle. Assemble as follows:

•Remove the hairpin clip from the chute directional control. Align holes on the upper and lower pieces

of the chute directional control, and insert the hairpin clip again. See Figure 10.

Hairpin Clip

Chute Directional

Control

Figure 10

Final Adjustments

Chute Directional Control Support Bracket

To adjust the chute directional control support bracket, refer to Figure 8 and accompanying instructions.

Traction Control and Shift Lever

To check the adjustment of the traction control and shift lever, proceed as follows:

•Move the shift lever into sixth (6) position.

•With traction control released, gently push the snow thrower forward, then pull it back. The machine should move freely.

•Engage traction control, and try to move the machine both forward and back. You should experience resistance.

•Move the shift lever into the fast reverse (R2) position and repeat the previous two steps.

If you experienced resistance either when repositioning the shift lever from 6 to R2 or when attempting to move the machine with the traction control released, you should NOT operate the snow thrower before adjusting the traction control. To adjust, proceed as follows:

•Loosen the jam nut on the traction control cable and UNTHREAD the cable one full turn.

•Recheck adjustment.

•Retighten the jam nut to secure the cable when correct adjustment is reached.

NOTE: For more details, refer to Traction Control Adjustment on page 12.

Auger Control

Check the adjustment of the auger control as follows:

•Push down on the auger control until the small rubber bumper contacts the upper handle. There should be slack in the auger control cable.

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