Dynamix ITM Series, Installation, Operation & Maintenance Manual, Page: 17 / 23

R16 122016 15
Troubleshooting Guide
Use This Chart to Diagnose Operation Issues
Problem Possible Cause Possible Solution
Mixer Will
Not Start

Loose connections

Check and tighten connection

Incorrect wiring

Check wiring diagram and wire correctly

Blown fuse

Replace fuse

Wrong size heaters in starter

Replace heaters

Mechanical jamming

Free all debris for rotation

Water damage to motor

Service or replace motor
Motor
Runs Hot

Restricted ventilation

Clear the vents

Amperage overload

C
ONSULT FACTORY

Low or high voltage

Wire for correct voltage

Unbalanced voltage between phases

Consult electrician

Frequent starting and stopping

Check with factory
– a special motor may be
required

Product too viscous

Check viscosity and specific gravity of product
(consult factory)

Impeller(s) upside down

Reinstall in correct position

Incorrect rotation

Change motor leads per nameplate instructions
Mixer Will
Not Reach
Correct Speed

Overload of motor

Check amperage against nameplate data

Loose drive coupling bolts

Check coupling bolt tension (coupling and/or shaft
may be damaged if mixer has been run with slipping
coupling)

Also See: “Mixer Will Not Start”
Shaft Will
Not Fit
Into Drive

Shaft over size (proper diameter: 0.001” –
0.002” under normal diameter)

Measure and consult factory

Wrong end of shaft (only one end fits)

Install end marked motor end

(2) Coupling bolts are too tight

Loosen bolts

Wrong size shaft, coupling or bearing

C
ONSULT FACTORY

Damaged shaft, coupling or bearing

C
ONSULT FACTORY
Shaft
Vibration

Unstable mounting platform

Reinforce platform

Bent mixer shaft

C
ONSULT FACTORY

Bent or uneven impeller blades

C
ONSULT FACTORY

Impeller not immersed in liquid

Fill tank

Impeller too close to surface

Fill tank and lower impeller (see S3)

Worn or damaged drive bearings

Replace damaged parts
Noisy
Operation

Foreign material in lubricant

Change lubricant

Dry lip seal in spool

Apply lubricant to lip seal

Insufficient lubricant

Fill proper amount of lubricant

Incorrect lubricant

Change to correct lubricant

Loose drive coupling bolts

Check and tighten coupling bolts

Worn or faulty bearings/gears

Check bearings/gears
– replace if necessary
Oil
Leakage

Damaged broken gasket

Replace gasket

Excessive lubricant

Check manual for proper amount of lubricant and
drain excess

Seals worn or damaged

Replace seals

Loose bolts around side plates

Check and tighten bolts
Bearing
Failure

Water damage

Replace bearings (check all other parts)

High temperature product

Provide heat shield

Also See: “Noisy Operation”

C
ONSULT FACTORY