16
1-
Relieve the pressure.
2-
Remove the manifolds and disassemble the ball check valves as explained in
Ball Check Valve
Repair
section.
3-
Using a 5mm allen key remove the bolts connecting fluid chamber body sections from the centre
section. Remove the fluid chamber body sections.
4-
Using a13mm socket wrench on each side simultaneously loosen both the diaphragm bolts.
5-
Remove O-Ring, diaphragm and back-
up diaphragm( if pump has Teflon® diaphragms installed)
6-
Remove the other diaphragm shaft bolt from the pump centre section. Remove the shaft. Remove
the remaining diaphragm(s)
7-
Remove the cover that is holding the pilot shaft and diaphragm shaft.
8-
Check the diaphragm shaft, O-Rings and bearings for wear and abrasion.
9-
Clean all parts and inspect for wear or damage.
10-
There is text on the air side of the diaphragm.
11-
Grease the diaphragm shaft lightly.
12-
In the Teflon Diaphragmed pumps, Rubber diaphragm is protected by putting a teflon
diaphragm to the side that is in contact with the fluid.
13-
Re-assemble the parts in the reverse order.
14-
Tighten the screws applying the proper torque from the torque chart. (Fig. 7)
Figure 12 - Diaphragm Change
7.3 Air valve repair
Tools Required
- Torque wrench
- 5 mm allen key
- Lithium-base grease (non-freezing silicone grease)
NOTE:
Hold the air valve vertical position if the core is sliding with its own weight in the valve body,
valve z-rings need to be changed.
1-
Relieve the pressure.
2-
Unscrew the bolts fixing the valve.
3-
Remove the two valve covers and then push the core out using a finger and remove from the other
side.
4-
Ensure that you do not damage the o-rings when inserting the valve core.
5-
Insert valve core then only one valve cover. Push valve core in with finger until it touches valve
cover. Then insert other valve cover. (See Figure 13a)
6-
Bolts should be tightened according to the Torque Values Table (Figure 7)
Содержание B15-AX
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