VERDER VERDERAIR HC-PURE FD Series Manual page 12

Disassembly of the ball valves
To have access to the ball valves you need to
disassembly of the side housings first. To get the
ball valves (11), unscrew the valve stoppers (15)
by unscrewing the bolts. O-rings manifold outside
(21) and o-rings valve stoppers can be replaced if
necessary. The shock absorbers (6) are bolted with
a dome nut.
Figure 4
Disassembly of the center housing, diaphragms
and air valve
Unscrew the air inlet connector (5) and the muffler (7)
Diaphragms (17) to the diaphragm shaft (19)
are bolted with the diaphragm shaft screw (18).
Unscrew one diaphragm (left turning) of the
diaphragm shaft. Pull the diaphragm shaft with the
second diaphragm out of the center housing (1).
Unscrew the second diaphragm from shaft then
unscrew the diaphragm shaft screw from both
diaphragms.
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Remove carefully the diaphragm shaft bearings
and o-rings (20) from their grooves in the center
housing (If disassembled, they need to be
replaced!). Take care not to damage the edges of
the grooves.
Unscrew both end caps of the air valve (27) by
using the AV tool (Figure 7b). Push out the main-
valve and the air valve shaft. Push out the air-valve
housing.
Figure 7a
Figure 7c
Assembly
Before starting to assemble please check all parts
on possible damages. Especially the sealing area
of the diaphragms have to be free from scratches
Figure 5
Assembly of the center housing
Remove the end caps of the air valve, the main-
valve and the air valve shaft out of the air-valve
(27). Screw one end cap flush into the center
housing (1) by using the AV tool (see figure 9b). Put
one of the six air-valves housing o-rings part of
(27) into the end cap.
Push the air-valve housing in the center housing
until it touches the end cap (use the revered side of
the AV tool for this – figure 9c). Be sure the four air
valve-housing o-rings are kept in their seat. Push
the main-valve on the air valve shaft in the center
Figure 6
housing.
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Figure 7b
Figure 7d
Figure 8
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