5 Maintenance
Study the instructions carefully. The items refer to the parts list and service kits section. Lubricate the rubber seals before
fitting them.
Step 6
Ensure that the clearance between impeller (11) and pump casing
(9) is 0.2-0.3 mm (tap gently with a plastic hammer).
0.2-0.3mm
3100-0051
Step 7
Remove impeller (11), pump casing (9) and bracket (2) without
moving stub shaft (3) on the motor shaft.
3100-0052
Step 8
Torque tighten screws (4) evenly to 15 Nm
3100-0053
Step 9
1. Fit thrower (21) on stub shaft (3).
2. Fit bracket (2) together with pump casing (9) on the motor.
3. Fit washers (46) and screws (45).
3100-0054
Step 10
CAUTION!
Ensure that the notch in the seal ring is opposite the driving pin
on thrower (21).
1. Fit spring (24), spacer ring (25) and washer (26) on the stub
shaft.
2. Lubricate O-ring (27) and fit it on the stub shaft.
3. Fit rotating seal ring (28) on the stub shaft.
3100-0055
Step 11
1. Fit O-ring (30) on stationary seal ring (29).
2. Fit the seal ring in pump casing (9), turn it clockwise and tighten
(use the tool supplied).
3100-0056
24
Summary of Contents for MR-166S
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