VERDER VERDERAIR PURE Manual page 13

Disassembly of the diaphragms and
diaphragm shaft.
Unscrew one diaphragm (17) (left turning)
of the diaphragm shaft (19*).
17
Pull the diaphragm shaft (19*) with the
second diaphragm out of the centre housing
(01). Unscrew the second diaphragm from
the shaft.
* For VA-P8 and 10, part of the air-valve (27).
Disassembly of the centre housing.
For VA-P15 up to VA-P50 (not for VA-P8
and VA-P10). Remove carefully the
diaphragm shaft bearings and o-rings (20)
from their grooves in the centre housing.
(If disassembled they need to be replaced!)
Take care not to damage the edges of
the grooves (see Figure 10).
20
Unscrew the muffler (07) and the air inlet
connector (05).
For unscrewing the centre housing plug (04)
the special tool (see Figure 3) can be used.
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-P08 and
VA-P10). Push out the air-valve housing.
Assembly
Figure 9
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
centre 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.
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-P08
Figure 10
and VA-P10) 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) and the air inlet connector (05) into the
centre housing.>>
VA-P_man_Rev06-2013_UK_(uk) | 18.06.2013
27
Figure 11
Figure 12
13