Alfa Laval LeviMag, Instruction Manual, Page: 32 / 68

6 Checklists
To ensure correct installation, before using the Alfa Laval LeviMag
®
, make sure to complete each step in the checklists below.
Beware of additional checklist for ATEX option see section 7.7 Additional maintenance for ATEX.
6.1 Unpacking/delivery
Step Description Checked
1
Read and understand the manual thoroughly.
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2 Inspect the delivery for visible transportation damages.
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3
Checklist for "Welding guidelines for Alfa Laval LeviMag
®
" done.
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4 Check name plates for data.
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6.2 Installation
Step Description
Checked
Ensure all parts are clean, dry and free from foreign material.
1)
Weld plate and thread connection.
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2) Male bearing and O-ring.
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3)
Impeller.
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1
Install the male bearing and O-ring.
1)
Lubricate the O-ring with purified water – mount on the male bearing.
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2)
Place the male bearing on the tool.
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3)
Tighten the bearing to metal-to-metal contact.
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4)
Tighten according to the specified torque – see 8.9 Tightening torque for screwed connections.
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2
Install the impeller including female bearing.
1)
Mount the impeller on the male bearing.
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2) Ensure the impeller rotates smoothly.
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3
Install the drive unit
1)
Ensure all incoming power is connected with an emergency stop or an on/off switch.
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2) Install the frequency converter – see 8.12 Connection to frequency converter.
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3) Program frequency converter ensuring that maximum speed can never be exceeded - see 8 Tech-
nical data.
4)
Ensure cables are long enough and shield motor cables.
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5)
Ensure that the drive rotor rotates in a clockwise direction as seen from above.
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6) Ensure the magnetic drive rotor run-out is maximum 0.2 mm.
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4
Mount the drive unit including the magnetic drive rotor into the weld plate.
1)
Tighten the screws (WP81) or clamp (WP50) according to the specified torque – see
8.9 Tightening torque for screwed connections.
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5
Check the impeller for levitation after installing the drive unit into the weld plate. 6
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Verify the impeller is rotation clockwise.
1)
Turn on the motor and verify that the impeller rotates smoothly clockwise.
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7
8 Verify that the Speed Sensor is detecting impeller rotation.
1)
Rotate the impeller slowly and verify that one short flash is seen for each rotation of the impeller.
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