Replacing The Diaphragm (Due To Breakage) - WAGNER Zip 52 Finishing Operating Manual

VERSION 11/2018

10.6 REPLACING THE DIAPHRAGM (DUE TO BREAKAGE)

If the diaphragms are replaced as a result of breakage, all the internal parts of the motor
must be cleaned and the condition of the seals and reversing valve, which may have been
damaged by contact with the pump fluid, must be checked.
Mark the coupled parts (diaphragm covers, manifold, covers) with a felt-tip pen so as to
make subsequent reassembly easier.
a) According to Chapter 8.4, points a), b), c) d) and e):
b) Follow the disassembly procedure of the
diaphragms.
c) Remove the reversing valve (2).
d) Remove the shaft's plastic bushings (3) located at
each end of the motor block, the lip seals (4) and
the feeler pins (5).
e) Clean all the components, openings and spaces
within the motor block. Blow the housing cavity
of the reversing valve out thoroughly with a jet of
compressed air (wear safety goggles).
f ) Check the condition of the reversing valve. If
necessary replace.
g) Assemble all the parts described under point c)
paying attention to properly orient the seals lips
(see Chapter 11, exploded view).
h) Grease feeler pins (5) with lip seal (4) once more
from outside.
i) Put the reversing valve back in its housing. When
doing so, apply the correct torque. Position the
valve slider (6) on one of the stroke stop positions.
There are four possible positions, each of them is
suitable.
j) According to Chapter 8.4, points f ), g), h), i) k) and
l):
Reassemble the remaining components.
ORDER NUMBER DOC 2332848
Zip 52 Finishing
B_04018
3.5 Nm
2.6 lbft
1
2 Nm; 1.5 lbft
2
6
5
4
3
2 Nm
1.5 lbft
43