ShopBot PRS Assembly Manual Page -29
Adjust the Lower Wheel Bearings on the YZ-Car
The lower bearing is adjusted tight by rotating the eccentric bushing. It has an off-center
hole so that rotating the bushing moves the wheel into and out of contact with the rail. The
adjustment is done most easily with a 9/16” socket on a wrench with a 6” extension.
• Rotate the bushing in a clockwise direction in small increments until it fully engages
the rail. Push the YZ-Car back and forth from the front to make sure the wheel is
tightly engaged and there is no wiggle, but do not over-tighten.
• Check your adjustment over the entire rail. You should not be able to stop the wheel
from turning with finger pressure. It can be tight enough to produce a slight amount
of resistance to rolling.
PRSAssembly080922.doc Copyright 2007,2008 ShopBot Tools, Inc
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