User Manual

F R M - 1 1 2 0 C I N S T R U C T I O N M A N U A L
53
Problem Possible Causes Solution
Machine does not run
1. Board for speed regulation is
abnormal
2. Doesn't connect well
3. Brushes in the motor are too short
because of friction
1. Replace the speed board (BS-52A)
2. Tighten the connecting screws
3. Replace motor brushes (BS-29A)
If the temperature controller works and the power
lamp illuminates but the motor does not move,
start off by checking the motor and turbocase
connection. Remove the back of the machine and
you will see bushing where the motor connects to
the gear box. Ensure the bushing is not broken.
There is also a set screw that connects the bushing
to the gear box / motor shafts. Ensure that these
are tight so that when the motor turns, the
turbocase turns as well.
If the turbocase is noisy before it stopped
working, the gear box could be broken inside.
Lack of oil could cause this.
If the lamp illuminates and the motor does not
turn, the motor speed controller may need to be
replaced.