MTD E640F - Manual (Page 14)

14
SKID SHOE ADJUSTMENT
The space between the shave plate and the ground
can be adjusted. Refer to page 10 of the Assembly
Instructions.
TRACTION DRIVE CLUTCH
ADJUSTMENT
Refer to the Final Adjustment section of the Assem-
bly Instructions to adjust the traction drive clutch. If
you are uncertain that you have reached the correct
adjustment, the adjustment can be physically
checked as follows.
With the snow thrower tipped forward (be certain to
drain the oil and gasoline or drain the oil and place
plastic film under the gas cap if the snow thrower has
already been operated), remove the frame cover
underneath the snow thrower by removing six self-
tapping screws.
With the traction drive clutch released, there must be
clearance between the friction wheel and the drive
plate in all positions of the shift lever. With the traction
drive clutch engaged, the friction wheel must contact
the drive plate. See Figure 21.
If adjustment is necessary, loosen the hex jam nut on
the traction drive cable and thread the cable in or out
as necessary. Tighten the hex jam nut to secure the
cable when correct adjustment is reached. Reassem-
ble the frame cover.
NOTE: If you placed plastic under the gas cap, be
certain to remove it.
Figure 21
DRIVE WHEELS
The wheels may be adjusted for two different meth-
ods of operation. The adjustment is made by placing
the klick pins in one of two different holes on the right
side of the unit. See Figure 22.
1. One Wheel Driving—Place klick pin in the out-
side axle hole on the right side. This position
gives power drive to the left wheel only, making
the unit easier to maneuver.
2. Both Wheels Driving—Both Wheels Driving—
Rotate wheel assembly to align hole in hub with
inner hole on axle shaft. Insert klick pin in hole.
Outer axle shaft hole should be visible. This
position is good for heavy snow as there is
power to both wheels. See Figure 22.
Figure 22
SECTION 9: LUBRICATION
WARNING: Disconnect the spark
plug wire and ground against the
engine before performing any repairs
or maintenance.
ENGINE
Refer to engine manual for engine lubrication
instructions.
WARNING: When following instruc-
tions in separate engine manual for
draining oil, be sure to protect frame to
avoid oil dripping onto transmission
parts.
CHUTE CRANK
The worm gear on the chute direction crank should
be greased with multipurpose automotive grease.
Friction
Wheel
Gear Shaft
Drive
Plate
Outside
Hole in Axle
Klick Pin in Hub
and Inner Axle Hole
Hole