Sterlco BP800 Series Granulators - Manual (Page 35)

800 Series beside-the-press Chapter 6: Troubleshooting 35 of 43
Electrical Problems
Problem Possible Cause Possible Remedy
Machine stops for no
apparent reason
Safety switch has stopped
power
Check that the knobs that
operate the safety switch are
tightened
Electric motor does not start
No power Check fuses
Overload failure
Check amperage of electric
motor
Safety switch not working Check and replace
Cutting chamber too full Empty cutting chamber
Motor starts but does not
speed up or take a load
Excessive drive belt tension Check belt tension and adjust
Motor connected to power
source incorrectly
Reconnect correctly
Defective starter winding
Check current in each phase.
If substantial difference
between phases, contact
motor manufacturer
Motor starts, but does not
gain speed
Bearing excessively worn Replace bearings
Cutting chamber full Empty cutting chamber