MTD 640 manual Making Adjustments

Page 9

To Stop Engine

To stop engine, remove the ignition key. Do not turn key. Disconnect the spark plug wire from the spark plug to prevent accidental starting while equipment is unattended.

To prevent starter freeze-up:

Run engine for a few minutes before stopping to help dry off any moisture on the engine.

Electric Starter: Connect power cord to switch box on engine, then to 120 volt AC receptacle. With the engine running, push starter button and spin the starter for several seconds. The unusual sound made by spinning the starter will not harm engine or starter. Disconnect the power cord from receptacle first, and then from switch box.

Recoil Starter: With engine running, pull starter rope with a rapid, continuous full arm stroke three or four times. Pulling the starter rope will produce a loud clattering sound, which is not harmful to the engine or starter.

Wipe all snow and moisture from the carburetor cover in the area of the control levers. Also, move control levers back and forth several times. Leave throttle control lever in the STOP or OFF position. Leave choke control in the FULL choke position.

Remove ignition key and disconnect spark plug wire. Do not turn key.

IMPORTANT: Do not lose ignition key. Keep it in a safe place. Engine will not start without the ignition key.

To Engage Drive

With the engine running near top speed, move shift lever into one of the five FORWARD positions or two REVERSE positions. Select a speed appropriate for the snow conditions that exist. Use

the slower speeds until you are familiar with the operation of the snow thrower.

Squeeze the auger control and the augers will turn. Release it and the augers will stop.

Squeeze traction control and the snow thrower will move. Release it and unit will stop. Never move shift lever without releasing traction control.

To Engage Augers

To engage augers and start throwing snow, squeeze the auger control against the left handle. Release to stop the augers.

Tire Chains (Optional Equipment)

Tire chains should be used whenever extra traction is needed. If your unit is not equipped with tire chains, you may purchase them.

Operating Tips

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

WARNING: The muffler, engine and their surrounding areas become hot and can cause a burn. Do not touch.

Discharge snow downwind whenever possible. Slightly overlap each previous path.

Set the skid shoes 1/4" below the scraper bar for normal usage. The skid shoes may be adjusted upward for hard-packed snow. Adjust downward when using on gravel or crushed rock.

Avoid possible starter freeze-up. Clean the snow thrower thoroughly after each use.

SECTION 5: MAKING ADJUSTMENTS

WARNING: NEVER attempt to make any adjustments while the engine is running, except where specified in the operator’s manual.

Chute Assembly

The distance snow is thrown can be adjusted by changing the angle of the chute assembly. Refer to Chute Tilt Control on page 7.

Skid Shoe

The space between shave plate and ground can be adjusted by raising or lowering the skid shoes. Refer to Skid Shoe Adjustment on page 12.

Traction Control

Refer to Final Adjustments on page 6 to adjust traction control. If you are want to check further for correct adjustment, proceed as follows:

WARNING: Drain the gasoline out of snow thrower engine, place a piece of plastic film under the gas cap to avoid spillage before beginning the job.

Tip the snow thrower forward, allowing it to rest on the auger housing.

Remove the frame cover underneath the snow thrower by removing six self-tapping screws.

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Contents OPERATOR’S Manual Table of Contents Training Important Safe Operation PracticesPreparation OperationYour Responsibility Maintenance and StorageAssembling Your Snow Thrower Skid Shoes Final AdjustmentsTire Pressure Pneumatic Tires Auger ControlOperating Controls Know Your Snow ThrowerBefore Starting Operating Your Snow ThrowerGas And Oil Fill-up Starting EngineMaking Adjustments Auger Control Shift RodDrive Wheels Lubrication Maintaining Your Snow ThrowerServicing Your Snow Thrower Belt ReplacementAugers Shave Plate and Skid ShoesDrive Belt Changing Friction Wheel RubberOFF-SEASON Storage Trouble Shooting GuidePart Description Parts List for ModelModel Model Drive Clutch Cable Auger Clutch Wheels Wheel Assemblies Model Size 710-1652 Hex Washer Screw 1/4-20 x 3830 Your Notes Your Notes MANUFACTURER’S Limited Warranty