• Initial Start-up

• Dryer Maintenance

• Troubleshooting

Initial Startup

1. Check fan rotation direction by manually pushing motor starter contacts in momentarily. Each producer is marked for correct rotation. If the rotation direction is incorrect, it may be changed by switching any two or three leads from the starter to the motor.
2. Make sure the fan doesn't rub the inlet cone. Units are preset and run at factory but may be jarred during shipment. Inlet cone adjustment may be accomplished by loosening the eight 1/4" bolts which hold the inlet cone in place and then moving the cone around as needed. Identify where the cone is rubbing and move it accordingly. Typically, 1/16" to 1/8" adjustment is sufficient.
3. Manually run each dryer motor and check motor amps on all three legs. Starting amps will exceed motor full load amps for approximately one to two seconds. Then they should run at 80% to 100% of full load as indicated on the motor name plate. Excessive running amps after startup are usually caused by one of three things:
   a) Motor and fan rotating in wrong direction
   b) Motor incorrectly wired. (Most commonly, #6 & #9 wires are crossed)
   c) Motor wired for incorrect voltage.
   Other reasons for excessive amp draw are:
   a) Input voltage drop.
   b) Wire used is too small or too long of a run for load.
4. Apply the input voltage to the dryer starter control. Check dryer step start and see that each unit functions properly. Set delay time between the motor starts as needed. Typically, three seconds is a good interval.

Dryer Maintenance

Fan Inspection: Fans used in Premier dryers are manufactured to very close tolerances using the finest material available. If maintained properly and operated under normal conditions, they should provide many years of trouble-free service. Although there is not substitute for good judgment and common sense, the following precautions should be followed to ensure safe, efficient fan operation.

• Periodically check fans for any stress fractures and welds.
• Do not allow fans to come in contact with inlet welds.
• Keep inlet screen free of all debris.
• Periodically clean all debris clinging to fan blades to maintain precision balance which is critical to safe, high-speed operation.
• Should an unusual noise or vibration develop, shut the fan down immediately and investigate the cause. DO NOT RESTART UNTIL CAUSE IS IDENTIFIED AND CORRECTED.
• If you have any questions about the maintenance or safety of your Premier fans, call your equipment supplier or Premier Systems at 866-539-3100.

Cleaning:

• Painted Surfaces: Soap and water or household cleansers will work satisfactorily. Do not use solvents or hard degreasers which will destroy the paint and mar the finish. Automotive wax will prolong finish quality.
• Aluminum Structures and Housings: Industrial strength cleaners. Descale with vinegar or mild acid solution. Rinse immediately with fresh water.

Lubrication: (Use moly grease or some grease applicable for wet environment.)

• Motors: Most motors are furnished with permanently lubed bearings. If motor is equipped with grease fitting, then motor may be grease once each year. Apply two or three strokes only with a hand grease gun.
• Oscillating arm bearings and drive rod bearings: Grease once per month. Apply two or three strokes only with a hand grease gun. DO NOT over grease. DO NOT use air powered grease gun.

Troubleshooting

Motor won't start.

1. Reset the circuit breaker by turning it off and back on.
2. Check the motor starter overload relay, push reset and check dial setting.
3. Check the fuses, if applicable.
4. Check the wire connections to the motor.
5. Verify the control voltage is correct for magnetic starter coil.

Motor makes bussing noise and runs slowly.

1. Motor may be single phasing, check for correct wiring at motor.
2. Reset the circuit breaker.
3. Reset the starter overload.
4. Check each voltage leg to ground.
5. Check motor wire connections.

Motor runs, fan blows but amps are very high.

1. Visually check motor and fan rotation direction.
2. Verify correct rotation for location of impeller.
3. Note: Blower will move approx. 50% less air when impeller is running backwards and will draw excessive amp load.

Motor starts and runs but magnetic starter trips out.

1. Check all wire connections. There may be loose connection, crossed wire or motor may be wired for incorrect voltage.
2. Check overloads on starter. They should be approximately 10% above full load for motor. (Not to exceed 25%).
3. Fan rotation direction may be incorrect causing motor overload.

Motor runs normally but starter or circuit breaker trip.

1. Circuit breaker may be too small or too weal.
2. Starter overload may be too low.
3. Wire size may be too small.
4. Incoming power supply may be low or fluctuating.

Motor runs hot.

1. Wire used may be too small.
2. Excessive starts and stops in a short period of time.
3. Incoming voltage may be too low.
4. Note: Newer, high efficiency motors normally run hot to the touch.

Oscillating motor doesn't run.

1. Check for voltage to motor contactor.
2. Check wire connections at oscillator motor.
3. Check circuit breaker and motor contactor overload.

Oscillator motor runs hot, trips out circuit breaker or starter.

1. Check for bind in drive rods.
2. Check oil level in oscillator gearbox.
3. Motor may be wired incorrectly or have incorrect voltage.