Murray 615000x30NA Owner's Manual page 9

Lubrication
Your Snowthrower does not require any lubrication for the life of
the Snowthrower.
Replacing Impeller Blades
S Remove all 4 securing screws for each of the 2 impeller
blades, and place aside. Figure 10.
S Remove worn or damaged impeller blades. Figure 10.
S Insert new impeller blades into slots in impeller and align
holes. Figure 10.
S Replace the 8 screws removed and fasten securely.
S Discard old impeller blades.
Drive Belt Replacement
Should the drive belt require replacement proceed as follows:
S Remove the six screws and flanged locknut securing the drive
housing cover, which is located on the left side of the
Snowthrower. Figure 11.
S Remove cover and place cover and hardware aside.
S Remove broken or damaged belt.
S Loop new belt around drive pulley and driven pulley as shown.
Figure 12.
S Be sure to engage belt tensioner as shown.Figure 12.
S Should it be necessary to remove drive pulley, proceed as
follows:
S Engage mini wrench/drive pulley tool to drive pulley as shown.
Figure 13.
S The mini wrench/drive pulley tool will prevent the drive pulley
from rotating while unscrewing pulley.
S Replace pulley with new pulley using the same mini
wrench/drive pulley tool while securing new pulley.
S Replace cover and secure with six screws and flanged locknut
removed previously.
NOTE: After completing any maintenance or repairs to the
Snowthrower always inspect the Snowthrower thoroughly
prior to using the unit.
Storage
S Remove residue ice or snow from impeller by briefly running
motor out of the snow.
S Disconnect from power source and remove key.
S Store Snowthrower indoors, in a dry, locked place, out of
reach of children.
S The Snowthrower can be hung on a wall nail.
Screws
F-031061C
MAINTENANCE
Impeller Slot
Impeller Blade
Figure 10
9
Drive Housing
Cover
Figure 11
Drive
Pulley
New Belt
Belt Tensioner
Driven Pulley
Figure 12
Drive
Pulley
Wrench/Drive
Pulley Tool
Figure 13