MTD Snow Boss 550 - Manual (Page 13)

13
• Reassemble new skid shoes with the six carriage
bolts, bell washers (cupped side goes against skid
shoes) and hex nuts. Make certain the skid shoes
are adjusted to be level.
To remove shave plate, remove the carriage bolts,
belleville washers and hex nuts which attach it to the
snow thrower housing. Reassemble new shave plate,
making sure heads of the carriage bolts are to the
inside of the housing. Tighten securely.
Belt Removal And Replacement
WARNING: Disconnect the spark plug
wire from the spark plug and ground.
Auger Belt
• Remove the plastic belt cover by removing the two
self-tapping screws. See Figure 17.
Figure 17
• Drain the gasoline from the snow thrower.
• Tip the snow thrower forward so that it rests on its
auger housing and remove six self-tapping screws
from the frame cover underneath the snow thrower.
• Roll the belt off the engine pulley. See Figure 18.
Figure 18
• Unhook the idler spring from the hex bolt on the
auger housing. See Figure 19.
Figure 19
• Back out the stop bolt until the support bracket
rests on the auger pulley. See Figure 20.
Figure 20
NOTE: Loosening the six nuts that connect the frame to
the auger housing may aid in belt removal.
• Lift the auger belt from the auger pulley, and slip
belt between the support bracket and the auger
pulley. See Figure 19. Repeat this step for the front
auger belt.
• Replace the auger drive belt by following
instructions in reverse order.
Drive Belt
• Follow the first four steps of the instructions for
serviceing the auger belt..
• Pull idler pulley up, and lift belt off engine pulley and
friction wheel disc. See Figure 18.
Self-Tapping Screws
Belt
Cover
Auger Pulley
Drive
Belt
Engine
Pulley
Engine
Pulley
Idler
Pulley
Idler
Pulley
Auger
Belt
Friction Wheel
Support
Bracket
Auger Belt
Frame
Auger
Pulley
Idler
Spring
Auger
Housing
Support
Bracket
Spring
Friction Wheel
Friction
Drive Belt
Support Bracket
Stop Bolt
Wheel Disc
Auger Pulley