Service manual

4
Check both of the two pulley set screws on each pulley for tightness, as shown. One of
the two Motor pulley (smaller) set screws must be exactly perpendicular to the flat
surface of the motor shaft. (A step ladder [Y-axis], and proper lighting are needed to
perform this inspection). Use a 1/8” Allen wrench to tighten these screws securely. (see
diagram)
Belt Deflection, ¼” maximum
Incorrect
Set Screws
Motor Pulley
Motor Shaft
Correct
Motor Pulley to Shaft Alignment