Simplicity SunRunner 1691331 Operator's Manual page 29

Troubleshooting
6. Pull belt up from top and place onto the transmission
pulley (D, figure 24).
Figure 24. Belt Pattern (Seen From Left-Hand Side)
A. Engine Pulley C. Idler Pulley
B. Fixed Pulley D. Transmission Pulley
7. Note that a tab on inner side of fan (B, figure 22) fits into
a hole when fan is installed. Install fan with original
hardware.
8. Install screen (A, figure 22) with two screws at top and
two screws at bottom.
9. Release parking brake to check belt stop adjustment.
There should be 1 /16 to 1/8 inch clearance between belt
and belt stops. Three belt stops (E) are shown in figure
23. Also check belt stop (A, figure 25) at transmission
pulley. To adjust, loosen mounting hardware, position
belt stop, and then tighten hardware.
Figure 25. Intermediate Belt
A. Belt Stop C. Intermediate Belt
B. "V" Belt D. Pulley
Intermediate Belt Replacement
The intermediate belt (C, figure 25) is designed for the life of
the unit. If replacement is necessary, see your dealer.
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