Service Manual

Single Stage Snowthrower Service Manual 5 - 27
DRIVE SYSTEMS
Belt Driven Systems
S-620 Model 38162 — 5000001 and up.
The drive system uses a “through shaft” rotor design
that is supported by two ball bearings (Figure 122).
Figure 122 0406-001
Shaft And Bearing Disassembly
1. Remove the drive belt. Refer to "Replacing Drive
Belt" on page 5 - 1. Complete steps 1 through 4.
2. Remove the rotor pulley by placing a block of
wood as a wedge between the rotor assembly and
the housing. With the use of a socket and breaker
bar or ratchet turn the pulley in a clockwise
direction (Figure 123). NOTE: The pulley has left
hand thread.
Figure 123 0406-002
3. Refer to page 6 - 7, step 3 for rotor paddle
removal.
4. Remove the three nuts and washers securing the
right hand bearing retainer (Figure 124).
Figure 124 0406-003
5. Remove the bearing retainer, rubber washer, and
the hexhead flange screw in the end of the rotor
shaft (Figure 125). The bearing may now be
removed and/or replaced.
Figure 125 0406-004