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25
OPERATION
Replacing Shear Pins
WARNING
NEVER replace the auger shear pins with anything other than OEM Part
No. 738-04124A (round head replacement shear pins), 738-05273 (black
colored, round head replacement shear pins) or 738-06654 (hex head
replacement shear pins). Any damage to the auger gearbox or other
components as a result of failing to do so will NOT be covered by your snow
thrower’s warranty.
WARNING
Always turn OFF the snow thrower’s engine and remove the key prior to
replacing shear pins.
The augers are secured to the spiral shaft with shear pins and cotter pins. If the
auger should strike a foreign object or ice jam, the snow thrower is designed so that
the pins may shear. If the augers will not turn, check to see if the pins have sheared.
IMPORTANT: ALWAYS use the correct OEM replacement shear pin.
2-Stage Snow Blowers
• The auger is secured to the spiral shaft using round head shear pins -
OEM Part No. 738-04124A. See Figure 39.
Figure 39
3-Stage Snow Blowers
• The side augers are secured to the spiral shaft using black colored,
round head shear pins - OEM part number 738-05273. See Figure 40.
• The central accelerator augers are secured to the spiral shaft using hex
head shear pins - OEM part number 738-06654. See Figure 40.
Figure 40
Using Snow Blower to Clear Snow
WARNING
Check the area to be cleared for foreign objects. Remove foreign objects,
if any.
1. Start the engine following starting instructions.
2. Allow the engine to warm up for a few minutes as the engine will not
develop full power until it reaches operating temperature.
3. Rotate the chute assembly to the desired direction, away from bystanders
and/or buildings.
4. Making certain no bystanders or obstacles are in front of the unit, squeeze
the auger control completely against the upper handle to fully engage the
auger.
5. While the auger control is engaged, squeeze the drive control completely
against the upper handle to engage the wheels. Do not “feather” the drive
control.
6. As the snow blower starts to move, maintain a firm hold on the handle, and
guide the snow blower along the path to be cleared.
7. Release the auger and drive controls to stop the snow throwing action and
forward motion.
NOTE: Your unit is equipped with a clutch in the transmission. If the wheels
stop turning while trying to discharge large volumes of snow, immediately
disengage the drive control and allow the rotating auger to discharge snow
from the housing. Reduce the clearing width and continue operation.
8. On each succeeding pass, readjust the chute assembly to the desired position
and slightly overlap the previously cleared path.
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