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Maintenance Instructions REPLACING/REPAIRING
61
Replace Reduction Chain
6. Adjust the chain tension. Refer to ADJUST-
MENTS of Two-Stage Snowblower Reduc-
tion Chain Tension in this section.
7. Reinstall the reduction box cover by reversing
the removal procedures.
Two-Stage Snowblower Reduction Sprocket
A sprocket should be replaced when the teeth be-
come asymmetric (when the front of a tooth is a dif-
ferent shape than the back side of the tooth).
Reduction Sprocket Wear
NOTE: Generally, a small sprocket wears faster
than a large sprocket.
1. Remove the reduction box cover and reduction
chain. Refer to REPLACING/REPAIRING of
Two-Stage Snowblower Reduction Chain in
this section.
2. Loosen the set screws that fasten the sprocket
to the fan assembly by applying heat to the
thread sealant used on these screws during as-
sembly.
3. Slide the sprocket off the fan assembly. Use a
puller if necessary.
4. Position the new sprocket on the fan assembly.
Apply Loctite
®
Threadlocker to set screws be-
fore tightening.
Remove and Replace Sprocket
5. Install chain and adjust the chain tension. Refer
to ADJUSTMENTS of Two-Stage Snowblow-
er Reduction Chain Tension in this section.
6. Lubricate the reduction chain. Refer to LUBRI-
CATION of Two-Stage Snowblower Reduc-
tion Chain in this section.
7. Reinstall the reduction box cover by reversing
the removal procedures.
Debris Blower Drive Belt
1. Remove the belt guard from the debris blower
housing by removing the two (2) cover pins and
hairpins securing it to the housing.
Open End
of Clip
Plate
Closed End
of Clip
Master Link
Symmetric (Acceptable)
Asymmetric (Replace)
Set
Screw
Sprocket
Drive Shaft
Set Screw
Locking Collar
Roll Pin