Honda HSM1180i Manuel De L'utilisateur page 47

Adjust the skid equally on both sides.
Be sure to tighten the skid and scraper bolts securely after making
adjustment.
Do not use the snowblower on rough or uneven surfaces with the
auger ground clearance set for hard snow or surfaces.
This may cause serious damage to the snow blowing mechanism.
Adjust the skid and scraper in the following cases
When the auger interferes with the road surface while it is turning:
When clearing the snow from the graveled road:
Raise the auger approximately 12 mm from the ground and
secure the skid in the position.
Secure the scraper by raising it 7 mm from the ground.
Do not clear the snow thoroughly from the ground but leave some
on the ground not to allow the gravels and other foreign material
to get caught in the auger.
To break down the hardened snow that dropped from the roof:
When the snow is too hard to dig in making the snowblower to
rise on the snow:
Raise the skid and scraper to the uppermost position of the
adjustment range with the auger in contact with the ground, and
secure the skid and scraper in the position.
Raise to the uppermost
position.
Note that the road surface can be damaged and stones can be
thrown out of the auger this time as it comes in contact with the
ground. Return the skid and scraper to the original position when
operating the snowblower under normal condition.
42
SKID
SCRAPER
7 mm min.
SKID
SCRAPER
AUGER
Approx. 12 mm min.
AUGER