Dynamix ITM Series Installation, Operation & Maintenance Manual page 17

Troubleshooting Guide
Use This Chart to Diagnose Operation Issues
Problem


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Mixer Will

Not Start






Motor

Runs Hot
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


Mixer Will

Not Reach
Correct Speed


Shaft Will

Not Fit

Into Drive
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



Shaft

Vibration
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



Noisy
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Operation
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


Oil

Leakage


Bearing

Failure
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R16 122016
Possible Cause
Loose connections
Incorrect wiring
Blown fuse
Wrong size heaters in starter
Mechanical jamming
Water damage to motor
Restricted ventilation
Amperage overload
Low or high voltage
Unbalanced voltage between phases
Frequent starting and stopping
Product too viscous
Impeller(s) upside down
Incorrect rotation
Overload of motor
Loose drive coupling bolts
Also See: "Mixer Will Not Start"
Shaft over size (proper diameter: 0.001" –
0.002" under normal diameter)
Wrong end of shaft (only one end fits)
(2) Coupling bolts are too tight
Wrong size shaft, coupling or bearing
Damaged shaft, coupling or bearing
Unstable mounting platform
Bent mixer shaft
Bent or uneven impeller blades
Impeller not immersed in liquid
Impeller too close to surface
Worn or damaged drive bearings
Foreign material in lubricant
Dry lip seal in spool
Insufficient lubricant
Incorrect lubricant
Loose drive coupling bolts
Worn or faulty bearings/gears
Damaged broken gasket
Excessive lubricant
Seals worn or damaged
Loose bolts around side plates
Water damage
High temperature product
Also See: "Noisy Operation"
Possible Solution

Check and tighten connection

Check wiring diagram and wire correctly
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Replace fuse
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Replace heaters
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Free all debris for rotation
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Service or replace motor
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Clear the vents
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Wire for correct voltage
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Consult electrician
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Check with factory – a special motor may be
required

Check viscosity and specific gravity of product
(consult factory)

Reinstall in correct position

Change motor leads per nameplate instructions

Check amperage against nameplate data

Check coupling bolt tension (coupling and/or shaft
may be damaged if mixer has been run with slipping
coupling)

Measure and consult factory

Install end marked motor end

Loosen bolts
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Reinforce platform
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Fill tank
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Fill tank and lower impeller (see S3)
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Replace damaged parts
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Change lubricant
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Apply lubricant to lip seal
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Fill proper amount of lubricant

Change to correct lubricant
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Check and tighten coupling bolts
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Check bearings/gears – replace if necessary

Replace gasket

Check manual for proper amount of lubricant and
drain excess
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Replace seals
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Check and tighten bolts
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Replace bearings (check all other parts)

Provide heat shield
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ONSULT FACTORY
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