Alfa Laval LKH Series, Инструкция по эксплуатации

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5 Maintenance
Read the instructions carefully. The items refer to the parts list and service kits section.
Lubricate the rubber seals before fitting them.
: Relates to the shaft seal.
Step Step
Step 4
4
4
1. For For For the the the double double double mechanical mechanical mechanical shaft shaft shaft seal: seal: seal:
Fit drive ring (52) on stub shaft (7).
2. Fit back plate (25), washers (21) and nuts (20) and tighten.
Step Step Step 5 5 5
1. Fit impeller (27) on stub shaft (7).
2. Ensure that the clearance between the impeller and back
plate (25) is correct: 0.5 mm (0.02 inch) for LKH10, 15, 20,
25, 35, 45, 50 and 60 and 1.0 mm (0.039 inch) for LKH40,
70, 75, 85 and 90.
3. Tighten screws (6) evenly until the stub shaft (7) cannot move
on the motor shaft.
The clearance can be adjusted by knocking gently with a plastic
hammer.
*) LKH10, 15, 20, 25, 35, 45, 50 and 60 = 0.5mm (0.02 inch)
LKH40, 70, 75, 85 and 90 = 1.0mm (0.039 inch)
Please note LKH40 impeller is marked with "1mm gap". If NOT
marked with “1mm gap” the clearance shall be 0.5mm.
Step Step Step 6 6 6
1. Remove impeller (27), back plate (25) and drive ring (52).
2. Tighten screws (6) evenly to 15 Nm (11 lbf-ft).
Tighten screws diagonally.
*) 15Nm (11 lbf-ft)
Counterhold with a screwdriver
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