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Section 4 Troubleshooting Chart
Problem Cause Remedy
Motors do not start 1. No power to unit
2. Vibration switch not reset
3. Limit switch on G.S. Coupling
tripped
1. Restore power
2. Reset vibration switch
Section 1.3.1
3. Reset limit switch
Section 1.3.1
Startup and shutdown
vibration
1. Moderate vibration at critical
rpm during startup and shutdown
1. None required
Machine vibrates 1. Bowl may be out of balance due
to poor cleaning, bowl parts
interchanged with another bowl
or uneven wear on conveyor or
bowl.
2. Vibration damping mounts have
lost elasticity.
1. Determine if vibration is
due to the causes described.
2. Replace rubber mounts.
Fluid coupling plug melts 1. Excessive amount of solids
causing overloading
2. Fluid volume or type wrong.
1. Reduce feed rate
2. Check oil level in coupling
3. Replace oil if in doubt
Noise from gearbox 1. Oil volume low or type wrong
2. Worn gears
3. Worn bearings
1. Check oil level and oil
type, replace if in doubt
2. Replace gearbox
3. Replace bearings
Continued disengagement
of G.S. Coupling
1. Large accumulation of solids in
bowl.
2. Excessive amount of solids in
feed mud.
1. Flush bowl
2. Reduce feed rate
Solids discharge too wet 1. Feed rate too high
2. Conveyor differential too high
1. Decrease feed rate
2. Change back drive motor
sheave to reduce differential
See Diagram 1
NOTE
THE ABOVE DESCRIBED ITEMS ARE NOT TO BE CONSIDERED CONCLUSIVE. IF
YOU HAVE ANY QUESTIONS, CONTACT SWACO ENGINEERING, HOUSTON,
TEXAS, 281-988-1868
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