Alfa Laval ALTB-SB-20, Инструкция по эксплуатации

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4 Operation
Study the instructions carefully and pay special attention to warnings! Always check the Agitator before operation. Alfa Laval
recommends a soft starter for the Agitator to reduce the load on tank and Agitator.
4.1 Operation
Rotation of agitator must always be clockwise.
Use of gear motor covers is not permitted due to risk of reduced cooling on motor.
If batch rotation is observed during operation, the optimum effect of the agitator is achieved by interval agitation. If interval
agitation is used, the gear motor must be installed with a soft-starter to increase gear motor life time and reduce forces on the
tank system.
If a sensitive product is processed, agitation speed and time should be reduced as much as possible.
If the agitator is equipped with an aeration valve, it is possible to aerate the product through the shaft during the agitation.
4.2 Inspection
Part Inspection Interval
Gear motor
-
Clean surfaces to avoid overheating
- Check for oil leakages
Monthly
Monthly
Sealing
-
Verify that the seals are not leaking Monthly
Bottom console bearing
-
Check for wear – radial movement < 5 mm Semi-annually
4.3 Troubleshooting
Problem Cause/result Remedy
Not starting
Gear motor
- Defect - Dismantle gear motor, check for
correct rotation
- Replace gear motor
- Fault at power supply - Check power supply connection
- Check voltage and frequency
correspond with motor name plate
- Check frequency converter adjustment
correspond with motor name plate
Agitator
- Obstructed - Check that Agitator can rotate freely
without striking anything
Vibrations
Guidance
- Bottom Console Bearing - Change Bearing / Bushing
Propeller - Damaged
- Unbalanced
- Contact Alfa Laval
- Clean propeller
Shaft - Damaged - Contact Alfa Laval
Unusual sounds
Guidance
- Shaft rotation – radial movement > 5 mm - Change Bearing / Bushing
Leakage
Gear motor
- Oil leakage
- CIP fluid or other from drain
- Renovate or change gear motor
- Replace sealing
Performance
- Deviation from normal operation - Operation must be according to
specification
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