BETTCHER
Industries, Inc.
Maintenance
5-8
Maintenance
Operation and Maintenance Manual
Manual No. 185321
June 15, 2018
Fault Detection and Correction (Continued)
Operational Problem Guide
O
PERATIONAL
P
ROBLEM
P
ROBABLE
C
AUSE
R
EMEDY
Blade Holder Base Does
Not Rotate or Chatters and
Stalls
Loose wire or plug connection(s). Check connections.
Controller board failure.
Replace controller board.
Mechanical drive problems.
Check that seal is greased.
Determine if motor pulley came
loose.
Drive motor winding failure.
Check winding resistance with
ohm meter:
red to red/white = 2 ohm
green to green/white = 2 ohm
Replace motor if resistance
varies greatly.
Wheel seems to stall for
approximately 10 to 30
seconds before continuing
towards the blade.
Grinder motor is wearing out.
The machine will pause while it
attempts to get the motor to run
evenly.
Replace the grinder motor.
COMPANY
CONFIDENTIAL