Installation Guidelines

• • Install and maintain correctly sized thermal overload protection.
• • Vibrators last longer and are more effective when bolted to a rigid mount.
• • Mounting plate must be totally flat. Warped surfaces can cause housing stress and possible cracks.
• • Take an amp reading to make sure that unit is not drawing more that the specified amps.
• • In situations of high amp draw, reinforce area of mount and relocate until rated amp draw is achieved.
• • Mounted vibrators should be attached to a safety cable.
• • Use grade 5 bolts and nuts or better at all times.
• • Use compression washer(s) together with locking nut.
• • Retighten bolts after the initial two hours of operation.

Bearings

• • Add new grease every 1200 working hours (1000 hours for every 3600 VPM)
• • Replace old grease every 5000 working hours.
• • Overgreasing can cause bearing damage.
• • For optimal performance, use only VIBRATEK specified grease: STABURAGS NBU 8 EP.
• Vibrators use long-life bearings with a unique code specifying:
• 1.) Bearing Type
• 2.) Cage
• 3.) Fit

• Example NJ-2310-E-TVP2-C4. Substituting originals with improper bearings (not matching the exact code) will cause the vibrator to fail.
• Bearing fit is C4.
• Protect electric vibrators from excessive moisture. This series is not designed to operate submerged.
• External temperature range is -40° to +110° F.
• Vibrator's housing surface temperature should not exceed 210° F

Weight Settings

• • When adjusting the force output, set weights at a lower force setting and then gradually increase the weight settings until the unit produces enough vibration to do the job. This will allow the longest possible life of the motor.
• • Make sure weight adjustments are the same at both ends of the rotorshaft.
• • Never run the vibrator with end caps off.

External Factors Affecting the Vibrator

Incorrect Voltage

• Besides a thorough maintenance and testing program, one of the best ways to guarantee economical performance and long motor life is to make sure your motors operate at nameplate voltage. Applying too high a voltage may reduce the motor's efficiency and increase core losses. This, in turn, shortens motor life by overheating the insulation system. Under-voltage can also shorten motor life. Operating on too low a voltage reduces the motor's effective horsepower. For example, a 5-hp motor operated at 10% below rated voltage becomes a 4-hp motor. The motor tries to drive the load it was intended to drive, becomes overloaded, draws more current and overheats. The result: premature failure.

Unbalanced Voltage

• Operating a three-phase motor with unbalanced voltage can also cause serious overheating that will shorten the vibrator's life dramatically. Voltage unbalance should not exceed 2%.

Moisture

• Moisture is detrimental to long motor life because it can deteriorate the insulation. To prevent condensation, one of two common methods is usually effective. One is to install electric heaters in the motor. The other is to apply a low DC voltage to one phase of the motor windings whenever the motor is at rest. With either method, the objective is to keep the temperature of the windings 10° F to 20° F above the ambient temperature.

Mounting Guidelines

• • When mounting a rotary vibrator, the objective is to vibrate the material in the bin - not the bin wall.
• • Maximum vibration transfer efficiency occurs when the vibrator is rigidly mounted, and the force and frequency are transmitted over a large reinforced surface area.
• • A mounting channel or W-beam (better!) should be as long as is practical to install (2/3 the length of the slope - minimum), and as wide as the vibrator base. It should be stitch-welded to the hopper, bin, or chute to be vibrated. Weld 3", skip 11/2" - never weld closer than 1" from the end or corners of the W-beam. If using channel, it can be notched to provide access to mounting bolts.
• • When mounting the vibrator, make sure mounting surfaces are dry and free of dirt, rust, scale, paint, grease, oil, etc.
• • Install the vibrator on the lowest 1/3 of the slope cone section.
• • Regularly examine the mounting vibrator for loose bolts, nuts, structural cracks, gussets, legs, W-beam (or channel), etc. to ensure performance of unit. Correcting those problems will reduce structural damage, reduce noise levels, and increase vibration transfer.