Murray 612100x30NA Owner's Manual page 9

CAUTION: To prevent the possibility of electrical
shock or accidental starting of the shovel while
performing maintenance, remove key from switch
and disconnect extension cord.
Lubrication
Your Snowthrower does NOT require any lubrication for the life of
the Snowthrower.
Drive Belt Replacement
Should the drive belt require replacement proceed as follows:
S Remove the eleven (11) screws securing the upper housing to
the lower housing and remove upper housing. Figure 11.
S You will find the driven pulley and belt on the left side of snow
shovel.
S Remove two (2) screws and bracket securing the driven
pulley. Figure 12.
S Remove complete driven pulley assembly with belt.
S Install new belt around driven pulley and around drive pulley.
Figure 13.
S Position belt on the inside of idler pulley as shown in
Figure 13.
S Replace driven pulley assembly bracket and driven pulley at
the same time. Figure 13.
S Secure bracket with two (2) screws. Figure 13.
S Rotate impeller a few turns by hand to ensure proper
operation prior to starting the shovel.
CAUTION: Failure of impeller to spin freely may result in
serious motor damage. Ensure proper operation prior to
starting the snow shovel.
S Re–attach upper housing to lower housing using the eleven
(11) screws. Fasten Securely.
Impeller Replacement
Should you find it necessary to replace a damaged or worn
impeller proceed as follows:
S Remove the eleven (11) screws securing the upper housing to
the lower housing and remove upper housing. Figure 11.
F-041018C
MAINTENANCE
Upper
Housing
Screws
Screws
Impeller
9
Screws
Belt
Driven Pulley
Assembly Bracket
Driven Pulley
Driven Pulley
Assembly Bracket
Driven
Pulley
Figure 11
Figure 12
Drive
Pulley
Figure 13