Service Manual

CAUTION: Servicing the Power Shift Snowthrower will
require working with some of the moving parts. To
prevent accidental starting of the engine while
performing service, take the following precautions:
Rotate the ignition key to
off and remove.
Pull the wire off the spark plug.
Make sure the wire does not accidentally touch
the spark plug.
CAUTION: The Power Shift Snowthrower has the
feature of being able to be stood on the front housing
for service and storage. Always drain the fuel from the
tank prior to such service taking the following
precautions:
Drain it outdoors and make sure the engine is cool.
Wipe up any gasoline that may have spilled.
Do not drain the gasoline near any open flame or
Do not smoke when handling gasoline.
spark.
OPERATION
Operation Traction Control
Traction is controlled by means of the lever on top of the
left handle. See Figure 44. The lever is spring loaded in
the disengaged position. The transmission can be
engaged by pushing down on the lever.
Impeller
Lever
Traction Lever
Figure 44
The traction lever is rigidly fastened to the cross rod that
passes underneath the control panel. See Figure
45.
Also attached to the cross rod is a trip lever (that
actuates the shift lockout mechanism) and a cam
release (that controls the impeller locking mechanism).
Both are keyed to the traction lever rod.
Traction and Impeller Controls
50
Figure 45
Control inputs are transferred down to the idler assem-
bly through
the cable attached to the release cam. The
top end of the traction cable is protected by a rubber
boot to help prevent corrosion and icing.
Operation Impeller Control
The impeller control is the lever located on top of the
right handle. See Figure
44 above. It is spring loaded in
the disengaged position. The auger is engaged by
depressing the lever.
Control input is transferred to the idler assembly at the
auger pulley by means of
a cable. There is a boot at the
top end of the auger cable to help prevent corrosion and
icing.
Operation Impeller Locking Mechanism
As a convenience feature, there is an impeller locking
mechanism that holds the impeller control in the
engaged position
if the traction lever is also engaged.
This feature lets the operator throw snow and propel the
unit with one hand, leaving the other free to position the
chute.
The impeller locking mechanism
is comprised of only
four pieces. They are:
locking tang
release cam
locking latch
torsion spring
The mechanism is disabled whenever the traction lever
is in the disengaged position. See Figure
46.
Power Shift Snowthrowers