Step 1
REMOVAL OF THE CHAMBER BLOCKS
Remove the upper housing. (See page18)
Remove the sound absorber.
Remove the four screws hold the chamber block. (4screws on each side.) Pull out the L-tube from the casing nozzle and remove the casing block on both side.
Step 2
Remove one of the U-lock nuts hold the diaphragm mounting block to the rod.
• Use the box driver to loosen (or tighten) the U-lock nut.
Step 3
Remove one of the diaphragm mounting block from the rod, and pull out the other diaphragm mounting block with the rod from the pump body. Remove another U-lock nut and the diaphragm mounting block from the rod.
This completes the chamber block removal procedure.
Step 4
FITTING THE CHAMBER BLOCKS
Install a new diaphragm mounting block on the actuating rod. Set the actuating rod in line with groove and tighten the U-lock nut with the box driver.
• Use new U-lock nut and washer only that come as replacement parts to prevent loosening and causing failure of the pump.
Step 5
Insert the actuating rod in accordance with the gap of the frame.
Secure the diaphragm mounting block on other side and tighten with washer and U-lock nut with the box driver.
Make sure the gaps between the actuating rod and the electromagnet are even.
Step 6
Connect L-tube to the casing block and secure the casing with the screws. (4screws on each side)
Install the other casing block at the same way.
Step 7
Install the sound absorber. (HP-50)
• Be extremely careful not to pinch the Sound Absorber in the Upper Housing.
Secure the upper housing with the bolts. Then place the filter and filter cover on the upper housing. (See page17 “FILTER CLEANING AND REPLACEMENT”)
