5 Maintenance
Study 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.
S
Stteepp 55
1. FFoorr ddoouubbllee m
meecchhaanniiccaall sshhaafftt sseeaall:: Fit drive ring (52) on stub
shaft (7).
2. Fit back plate (25), washers (21) and nuts (20) and tighten.
3007-0049
S
Stteepp 66
1. Fit impeller (37) 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 LKHUP-10 to 60 and 1.0
mm (0.039 inch) for LKHUP-70.
3. Tighten screws (6) evenly until the stub shaft (7) cannot move
on the motor shaft.
LKHUP-10 to -60 = 0.5 mm (0.02 inch)
LKHUP-70 = 1.0 mm (0.039 inch)
3007-0050
S
Stteepp 77
1. Remove impeller (37), back plate (25) and drive ring (52).
2. Tighten screws (6) evenly to 15 Nm (11 lbf-ft).
Counterhold with a screwdriver
3007-0051
15Nm
(11 lbf-ft)
32
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