SECTION 5: MAKING ADJUSTMENTS
WARNING: NEVER attempt to make any
adjustments while the engine is running,
except where specified in the operator’s
manual.
Frame Cover
Tire Pressure
(Pneumatic Tires)
•
The tires are overinflated for shipping purposes.
Before operating check tire pressure and reduce
pressure to between 15psi and 20 psi.
NOTE: If the tire pressure is not equal in both tires, the
unit may pull to one side or the other.
Traction Control and Shift Lever
To check the adjustment of the traction control and shift
lever, proceed as follows:
Auger
Housing
•
To check the adjustment of the traction control
clutch and shift lever, proceed as follows:
With the engine off, move the shift lever all the way
forward to the highest speed. With the traction
control lever released, push the snow thrower
forward. The unit should roll forward. Then engage
the traction control grip. The wheels should stop
turning.
•
Figure 8
•
•
Remove the frame cover underneath the snow
thrower by removing the six self-tapping screws.
With the traction control released, there must be
clearance between the friction wheel and the drive
plate in all positions of the shift lever.
•
•
Now release the traction control grip and push the
unit again.
Move the shift lever back to the fast reverse
position then all the way forward again. There
should be no resistance in the shift lever, and the
wheels should keep turning.
If you have resistance when moving the shift lever
or the wheels stop when they should not, loosen
the jam nut on the traction control cable and
unthread the cable one turn.
If the wheels do not stop when you engage the
traction control clutch grip, loosen the jam nut on
the traction control cable and thread the cable in
one turn.
•
With the traction control engaged, the friction wheel
must contact the drive plate. See Figure 9.
If adjustment is necessary:
•
•
•
Loosen the jam nut on the traction drive cable and
adjust the cable as necessary. Refer to Figure 6.
Retighten the jam nut to secure the cable when
correct adjustment is reached.
•
•
•
Reassemble the frame cover.
NOTE: If you placed plastic film under the gas cap
earlier, remove it now.
Axle Shaft
Sprocket
Recheck the adjustment and repeat as necessary.
Tighten the jam nut to secure the cable when
correct adjustment is reached.
Chain
Gear
Shaft
WARNING: Drain the gasoline out of the
snow thrower’s tank, or place a piece of
plastic film under the gas cap to avoid
spillage BEFORE making the adjustment.
Drive Plate
Friction
Wheel
To test further for correct adjustment, if necessary,
proceed as follows:
•
Tip the snow thrower forward, allowing it to rest on
the auger housing. See Figure 8.
Figure 9
10
| Categories | MTD Snow Blower Manuals, Snow Blower Manuals |
|---|---|
| Tags | MTD 643, MTD 663, MTD Snow Blower Manual |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | MTD, Snow Blower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
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