IWAKI PUMPS AMP 40, Инструкция по эксплуатации

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7. Remove the rear casing cover (159) from the rear cas-
ing (158). Be careful not to drop the impeller (230)/
magnet capsule (859) unit from the rear casing.
When the rear casing can not be removed from the
rear casing support, hit the bottom of the rear casing to
detach it.
■ Removal of the impeller and bearing
1. Heat the lugs on the rear ring (314.4) by a plastic
welder or industrial dryer and open the lugs up.
2. Warm the impeller assembly in the hot water of 80 ˚ C.
If it is not warmed up enough, the bearing or the rear
ring may break.
Wear protective clothing for the prevention of
scald.
3. Apply the plastic round bar (34 mm dia. 100L) to the
impeller-side bearing end and then push out the bear-
ing (310) and rear ring (314.4) by the hand press.
Maintenance