EarthWise SN72018 Operator's Manual page 11

Before carrying out maintenance operations, disconnect power supply.
Regular cleaning and maintenance of your snow thrower
will ensure efficiency and prolong the life of the product.
Check all fasteners at frequent intervals for proper
tightness to be sure the snow thrower is in safe working
condition.
After each use, let the motor run for a few minutes so that
moving parts do not freeze. Then shut off the motor, wait
for all moving parts to stop, and wipe the ice and snow
from the snow thrower. Rotate the chute crank several
times to remove snow.
Only use a cloth soaked with hot water and a soft brush
to clean the snow thrower. Never wet or spray water on
the machine!
Do not use detergents or solvents as these could cause
irreparable damage to the snow thrower. Chemicals can
destroy the plastic parts.
To protect the snow thrower from corrosion when storing
for long periods, lightly oil the metal parts.
Store the snow thrower in a dry area out of reach of
children.
For the user's safety, worn or damaged parts must be
replaced. Replace with original replacement parts only.
Parts from another snow thrower may not fit properly
causing an unsafe situation.
Lubricating the snow thrower
You do not need to lubricate the snow thrower. All of the
bearings are sealed and were lubricated at the factory for
the life of the snow thrower.
Replacing the rubber plates on auger
Detach the worn rubber plate by removing the two sets of
nuts, bolts, and washers used to secure it.
Install the new rubber plate.
Insert the bolt with the small flat washer into the
corresponding holes on each end of the rubber plate.
Use a large flat washer and locknut to secure the bolt
on each end.
Install the other rubber plate in the same manner.
MAINTENANCE
Replacing the scraper
The scraper is located at the base of the snow thrower
beneath the auger housing.
Remove the screws that secure the scraper to the snow
thrower.
Install the new scraper and fasten it securely with the
screws. (See Fig 16)
Fig 16
Replacing the auger belt
Under normal operating conditions it should not be
necessary to replace the auger belt. However, should
the auger jam or malfunction the belt could be damaged.
To replace the belt follow these instructions.
Belt drive system structure (See Fig 17)
Fig. 17
11
Auger Pulley
Auger Belt
Main Drive Belt
Drive Pulley