Urschel COMITROL 2100, Instruction Manual

Page: 128 / 166

50
MAINTENANCE
Troubleshooting
Power disconnect/lock-
out switch is in the “O”
(OFF) position
Covers and guards not
securely closed,
attached or fastened
Thermal overload relay
tripped
Amplifier malfunction
Blown fuses
Electrical system mal-
function
Blown Fuses
Agitator and feed screw
drive belts slipping
Feed rate too high
Loss of one phase of
power
Motor problem
Turn power disconnect/lockout switch to the
“I” (ON) position, page 28.
Make sure covers and guards are securely
closed, attached and fastened. Check for
bent or twisted covers or guards that will
prevent switches from lining up. See “Covers
and Guards”, page 34.
Wait 5 minutes. Press “RESET” button. See
“Machine Overload or Jam”, page 31.
Check amplifier. See “Amplifier”, page 48 or
“Wiring Diagram”, pages 80 & 81.
Check motor, transformer and amplifier fuses.
See “Inspection”, pages 46–49.
Inspect electrical system. See “Inspection”,
pages 46–49.
Check motor fuses, transformer and amplifier
fuses. See “Inspection”, pages 46–49.
Replace worn or frayed belts and adjust belt
tension. Make sure belts are clean, dry and
free of grease. Check for worn pulley
grooves.
See “Feeding Method”, page 30.
Perform complete electrical check on motor
starter. See “Wiring Diagram”, pages 80 & 81.
Contact Urschel Laboratories for location of
nearest authorized motor service center.
Machine Does
Not Start
Agitator and/or
Feed Screw
Does Not Start
Slow, Sluggish
Operation
PROBLEM CAUSE CORRECTION