Grain Systems Bucket Elevtors, Conveyors, Series II Sweeps PNEG-1597 - Manual (Page 18)

4. Assembly
18 PNEG-1597 Sweep Tractor and Control Panel Assembly Instructions
16. Assemble the 13 tooth sprocket to the motor shaft using a 1/4" square x 1" key.
17. Install the roller chain around both sprockets. Adjust the position each sprocket or the tractor axle
(if necessary) to correctly align the chain.
18. Tighten all the sprocket set screws.
19. Tension the roller chain as required by adjusting the nuts on the 5/8"-11 x 6" threaded rods.
(See Figure 4I.)
NOTE: Tighten both pillow block bearing lock collars at this time.
Figure 4I