Frequently Asked Questions

What if my main motor breaker trips?

• Is the breaker sized correctly for the motor being used?

  • Look at the nameplate on the motor and find the correct breaker size.
  • Verify that the breaker is sized correctly for peak motor start-up. It needs to handle the maximum voltage pull from the motors.

• Is there material in the rolls?

  • Rolls should turn freely by hand. If not, first turn off all power supply to the mill. Then open the front cover and clean out any product from between the rolls.

• Is there a foreign object in the rolls?

  • Rolls should turn freely by hand. If not, first turn off all power supply to the mill. Then open the front cover and clean out any product from between the rolls.

• Is the motor being over-worked?

  • Open the roll gap on the set of rolls that the over-worked motor drives. This will allow grinding work to move to another set of rolls, distributing the work between motors.

What if I can’t get my desired grind capacity?

• Are the rolls getting dull?

  • Call RMS 605-368-9007 to schedule a stop-and-check or a roll exchange.

• Does the motor amperage-pull fluctuate?

  • Motors should pull roughly the same amperage, within 5.00 amps of each other. If your motors are fluctuating more, note the fluctuation and call RMS to schedule a roll exchange.

• Is the top set of rolls not pulling any amps?

  • Check the roll gap. If the top rolls aren’t pulling any amps, they probably aren’t processing material.

• Are the roll gaps set to give maximum output?

  • Adjust roll gaps as necessary.

What if my bearings are running above normal operating temperature?

• Have the bearings been greased?

  • If not, grease the bearings. Refer to the lubrication section of this manual for a greasing schedule and recommended grease type.

• Is the bearing still running abnormally hot after greasing?

  • Give RMS a call at 605-368-9007. Your bearing may be going bad.

• What if my bearing is also making a whistling noise?

  • Give RMS a call at 605-368-9007. Your bearing may be going bad.

What if my belts are Squealing?

• Verify the following:
  • Belts are correctly tensioned.
  • Pulleys are aligned.
  • Belts are in good condition.
  • Pulleys are in good condition.
  • Belts are tensioned using the automatic motor base adjustment.

What if I can’t get my target material anymore?

• Visually inspect the rolls and make sure no hard debris has gone through the rolls and left ‘scars’ in the rolls.
  • Call RMS 605-368-9007 to determine if a roll change is needed.
  • Move the rolls in to zero, are they touching?
    • If not, you need to re-zero the rolls.

Why is there a high pitched noise coming from my machine?

• Our grinders contain a part that is called a V-Block that sits directly on top of the rolls to block any grain from getting around the rolls. The V-Block is installed with as tight of a tolerance as possible to ensure the proper seal. After a few hours of run-time, the rolls will wear into the V-Block and the noise will subside.

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