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Maintenance
Inspect Scraper Bar
1. Raise snowthrower to highest position.
2. Use safety block(s) to secure snowthrower:
a. Place safety block under attachment.
b. Lower attachment until it rests on block(s).
3. Inspect location where scraper bar (A, Figure 6)
meets snowthrower housing.
Reversing Scraper Bar
1. Raise attachment to top height.
2. Place safety blocks under attachment.
3. Lower attachment until it rests on blocks.
4. Using 1/2" wrench remove six nuts, washers, and
bolts (B, Figure 6).
5. Remove scraper bar (A).
6. Reverse or replace scraper bar.
7. Replace the six bolts, washers, nuts and tighten.
Shear Bolts
Refer to Figure 7 for discharge fan shear bolt (grade 5
hardness, 5/16-18 x 5/8"). Refer to Figure 8 for auger
shear bolt (one in each auger-specialized, grade 5 hard-
ness, 5/16-18 x 2-1/2").
Check for excessive wear. The shear bolt will break if
the auger or fan hits a solid object. If this happens:
1. Stop the snowthrower and tractor immediately.
2. Stop the engine, lock the parking brake, and remove
the key.
3. Remove the broken shear bolt.
4. Install a new shear bolt. Make sure the replacement
shear bolt is Grade 5 hardness.
5. Locate and correct the cause of the shearing.
ADJUSTMENTS
Skid Shoe Adjustment
On smooth surfaces such as concrete or asphalt, the
scraper bar should scrape the surface. On surfaces
such as gravel, the scraper bar should be set high
enough so that it will not pick up debris.
1. Loosen the nuts securing the skid shoes (see
Figure 9).
2. Raise or lower the scraper bar to the desired height.
Use wood blocks to hold the snowthrower in position.
3. Set the skid shoes so that they are in contact with the
ground and tighten the skid shoe nuts (Figure 9).
Figure 6. Scraper Bar Adjustment
A. Scraper Bar B. Mounting Hardware
Figure 7. Discharge Fan Shear Bolt
Figure 8. Auger Shear Bolt
Figure 9. Adjusting Skid Shoes
Nuts
Nuts