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HP- 30/40/50

CAUTION

！

●Be sure to unplug the pump unit.

●Replace the diaphragms and the valves with new ones at least once a year to one and

a half year regularly in order to maintain their initial performance.

●For chamber block replacement, be sure to change both chamber blocks at the same

time.

●The rod employs powerful permanent magnets. Therefore, be sure to remove your

watch and any other precision machines before operation as they may be affected by

the strong magnetic force.

●Do not put the actuating rod close to a magnetic card, a magnetic disk or other

magnetic media as the data may be destroyed.

STEP

REMOVAL OF THE CHAMBER BLOCKS

To remove the upper housing.

To remove the sound absorber.

Pull out the L-tube from the casing block.

Remove the 4 screws holding the chamber block

and the casing block. (4 screws on each side)

STEP

Remove 1 U-lock nuts from one side holding the

diaphragm mounting block to the rod.

●Use the nut driver to loosen (or tighten) the U-lock nut.

STEP

Remove one of the diaphragm mounting blocks

from the actuating rod and pull out the other

diaphragm mounting block with the rod. After

that, separate the diaphragm mounting block and

the rod.

This completes the chamber block removal

procedure.

REPLACING THE CHAMBER BLOCK