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TROUBLESHOOTING THE DRIVE TRAIN
7. Check the condition of the upper and lower sprocket assemblies. Replace
the sprocket assembly if it is worn excessively, has broken teeth, or if it is
bent.
8. Check the alignment of the upper and the lower sprocket assemblies. The
outside face of the upper and lower sprockets should be 1-11/16" (4.3 cm)
from the outside edge of the left frame rail. Loosen the nuts on the pillow
block bearing collars and tighten or loosen the bearing adjuster set screws
until the distance to both sprockets is correct. Tighten the pillow block
bearing nuts and verify the distance.
9. Check the step assembly.
a. Rotate the steps and check the
hinges, step shafts, washers, and
bearings (See Figure to Right) for
wear, corrosion and lack of
lubrication. Replace any worn
parts.
b. Ensure the nuts at each step
shaft end are tight.
10. Reinstall all parts. If the problem still exists, contact the Customer Service
Department at 800-331-3578 for further assistance.
Step Tread
Step Hinge
Step Shaft
4 X Washer
2 X Bearing
2 X Nut