MTD 643, 663 manual Chute Clean-Out Tool, Drift Cutters If Equipped, Operating Tips

Auger

Control

Z-End

Jam Nut

Auger

Control Cable

Figure 6

Chute Clean-Out Tool

The chute clean-out tool is conveniently fastened to the rear of the auger housing with a mounting clip. Should snow and ice lodge itself in the discharge chute during operation, proceed as follows to safely clean the chute and chute opening:

•Release both the Auger Control Lever and the Traction/Auger Control Lock Lever.

•Stop the engine by removing the ignition key.

•Remove the clean-out tool from the clip which secures it to the rear of the auger housing.

•Use the shovel-shaped end of the clean-out tool to dislodge and scoop any snow and ice which has formed in and near the discharge chute.

WARNING: Never use your hands to clean snow and ice from the discharge chute or auger housing

•Refasten the clean-out tool to the mounting clip on the rear of the auger housing, reinsert the ignition key and start the snow thrower’s engine.

•While standing in the operator’s position (behind the snow thrower), engage the auger clutch lever for a few seconds to clear any remaining snow and ice from the discharge chute.

Drift Cutters (If Equipped)

Drift cutters should be used when operating the snow thrower in heavy drift conditions.

On models so equipped, drift cutters are assembled to the auger housing inverted. Remove the carriage bolts by unthreading the hex nuts which secure them, and reinstall the drift cutters in their proper position before operating the snow thrower. See Figure 7.

If your unit is not equipped with drift cutters, contact Customer Support as instructed on page 2 for information regarding price and availability.

Snow Thrower Model Drift Cutter Kit

All models	OEM-390-679
Drift
Cutter
Carriage Screws /
Hex Nuts

Figure 7

Tire Chains (If Equipped)

Tire chains should be used whenever extra traction is needed. If your unit is not equipped with tire chains, contact Customer Support as instructed on page 2 for information regarding price and availability.

Operating Tips

NOTE: Allow the engine to warm up for a few minutes. The engine will not develop full power until it reaches operating temperature.

WARNING: The temperature of the muffler and the surrounding areas may exceed

150°F. Avoid these areas.

•For the most efficient snow removal, remove snow immediately after it falls.

•Discharge the snow downwind whenever possible.

•Slightly overlap each previous path.

•Set the skid shoes 1/4" below the shave plate for normal usage. The skid shoes may be adjusted upward (to lower the shave plate) for hard-packed snow. Adjust downward (to raise the shave plate) when using on gravel or crushed rock.

•Be certain to follow the precautions found in the To Stop Engine section to prevent possible freeze-up.

•Clean the snow thrower thoroughly after each use.

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