Toro Snow Commander - Drive System; Drive System Operation

Snow Commander Service Manual 4 - 1
DRIVE SYSTEM
Operation
A multigrooved V belt transfers power from the engine
pulley to the rotor drive pulley. Belt clutching is
controlled by a cable connected to a bail on the upper
handle. When engaged, the combination idler/brake
arm rotates to disengage the brake and move the idler
to tighten the belt (Figure 36). When the bail is
released, a spring pulls the idler away from the belt and
engages the rotor brake. See Figure 46 for location of
spring.
Figure 36
0621-0083
The same control bail on the handle has a second
cable attached to it. This cable controls tilting of the
powerhead (Figure 37).
Figure 37
3428-0206/3428-0207
When the bail is squeezed, the powerhead containing
the engine and rotor is tilted forward until the rotor
blades contact the surface. This action provides a self-
propelling action by the rotor blades as well as cleaning
down to the surface (Figure 38).
Figure 38
3428-0229
(A) Belt Brake
(B) Pivot
(C) Idler
A
B
C
(A) At Rest
(B) Engaged (tilted)
(C) Cable
A
B
C
C