VERDERAIR_VA-C manual_rev2_2020_UK_(uk) | 1.12.2020
13
Disassembly of the diaphragms and dia-
phragm shaft
.
Unscrew one diaphragm (17) (left turning) of
the diaphragm shaft (19*).
Figure 9
Pull the diaphragm shaft (19*) with the
second diaphragm out of the centre housing
(01). Unscrew the second diaphragm from
the shaft.
* For VA-C10 and VA-C20, part of the air-valve
(27).
Disassembly of the centre housing.
For VA-C50 and VA-C130 (not for VA-C10
and VA-C20). Remove carefully the dia
-
phragm shaft
bearings and o-rings (20) from their grooves
in the centre housing. (If disassembled they
need to be replaced!) Take care not to dam
-
age the edges of the grooves (see Figure
10).
Figure 10
Unscrew the muffler (07)
Unscrew both end caps of the air valve (27)
by using the special tool (see Figure 11).
Push out the main-valve and the air valve
shaft (air valve shaft not for VA-C10 and VA-
C20). Push out the air-valve housing.
Figure 11
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 (see Figure 12).
Assembly of the centre housing.
Remove the end caps, the main-valve and
the air valve shaft out of the the air-valve
(27). Screw one end cap flush into the cen
-
tre housing (01) by using the special tool
(see Figure 11). Put 1 off the six air- valves
housing o-rings part of (27) into the end
cap.
Figure 12
Push the air-valve housing in the centre
housing until it touches the end cap. Be sure
the 4 air valve- housing o-rings are kept in
their seat. Push the main-valve and the air
valve shaft (air valve shaft not for VA-C10
and VA-C20) in the centre housing.
Put the last air-valve housing o-ring on top
of it and screw the second end cap flush with
the centre housing using the special tool
(see Figure 11).
Screw the centre housing plug (04) in the
bottom connection (for standard pumps) of
the centre housing (01). Screw the muffler
(07) into the centre housing.>>
