Service Manual
MAINTENANCE
7 - 2 Single Stage Snowthrower Service Manual
3. Replace with a new scraper and secure to the
housing with the three carriage bolts and locknuts.
For All 14” And 21” Single Stage Snowthrowers:
1. Drain the fuel from the fuel tank. Refer to
"Draining The Fuel Tank" on page 2 - 5.
Complete step 1.
2. Remove the four carriage bolts and locknuts
securing the scraper support bracket to the
snowthrower housing (Figure 163).
Figure 163 0217-075
3. Remove the old scraper assembly and replace.
Note: The 14” and 21” model snowthrowers produced
from 1965 to 1977 were equipped with a plastic
scraper riveted to the scraper support bracket.
Therefore, it was necessary to replace the entire
bracket and plastic scraper.
On 14” snowthrowers produced from 1978 to 1980,
(21” units are no longer in production), the plastic
scraper only is replaced. The scraper support and
plastic scraper are bolted together with carriage bolts
(Figure 164).
Figure 164 0217-076
14” Snowthrowers With Adjustable Scrapers
All 14” snowthrowers manufactured between 1978 and
1980 were designed with an adjustable scraper. After
you install a replacement scraper to a 14” snowthrower
manufactured during one of these years it is essential
the scraper be adjusted properly. To adjust the
scraper:
1. Loosen the four scraper support bracket mounting
bolts, and adjust the skid so that there is 1/16” to
1/8” clearance between the rotor blades and the
leading edge of the skid (Figure 165).
Figure 165 0217-077
2. Rotate the rotor assembly and check the
clearance of both rotor paddles.
Note: The 14” snowthrowers should be tipped forward
during the operation of the unit and not resting on the
wheels. Therefore, adjust the scraper with the unit
tipped forward in the operating position.
PADDLE REPLACEMENT - STRAIGHT
PADDLE
After a period of extended use, the impeller paddles
may need to be replaced.
Paddle Replacement For Snowthrowers With Rotor
Shell Design
1. Drain fuel from the fuel tank. Refer to "Draining
The Fuel Tank" on page 2 - 5. Complete step 1.
2. Tip the unit back until the upper handle rests on
the floor.