41
MAC 6000 Hydronic Heater
Trailer Axle Manual
2106 East Indiana Ave., Bismarck, ND 58504 U.S.A. • www.macheaters.com • +1-800-272-4604
NO BRAKES
Open Circuits Find & Correct
Short Circuits Test & Correct
Severe Underadjustment Adjust Brakes
WEAK BRAKES
Grease or Oil on Magnets or Linings Clean or Replace
Corroded Connections Clean & Correct Cause of Corrosion
Worn Linings or Magnets Replace
Scored or Grooved Brake Drums Machine or Replace
Improper Synchronization Correct
Underadjustment Adjust Brakes
Glazed Linings Reburnish or Replace
LOCKING BRAKES
Underadjustment Adjust
Improper Synchronization Correct
Loose, Bent, or Broken Brake Components Test & Correct
Out-of-Round Brake Drums Machine or Replace
Isufficient Wheel Load Adjust System Resistor and Synchronize
INTERMITTENT BRAKES
Broken Wires Test and Correct
Loose Connections Repair or Replace
Faulty Ground Find and Repair
BRAKES PULL TO ONE SIDE
Wrong Magnet Lead Wire Color Adjust
Incorrect Adjustment Correct
Grease or Oil on Linings or Magnets Clean or Replace
Broken Wires Find and Repair
Bad Connections Find and Repair
HARSH BRAKES
Underadjustment Adjust
Improper Synchronization Correct
NOISY BRAKES
Underadjustment Adjust
Lack of Lubrication Lubricate
Broken Replace Component
Incorrect Brake Components Correct
Table continued on page 19.
Troubleshooting - Chart
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