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 LKH-5.
The clearance can be adjusted by knocking gently with a plastic
hammer.
*) LKH-5 = 0.5 mm (0.02 inch)
Step
Step
Step 6
6
6
Tighten screws (4) evenly to 15 Nm (11 lbf-ft).
Tighten screws diagonally.
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