Annovi Reverberi SRMW Série Instructions D'utilisation page 8

Operating Instructions and Parts Manual
Plunger Pumps
Service Pumps (Continued)
7. Put a thin coat
oil on the plungers and
packings. (See figure 15)
8. Carefully install the
manifold and torque
the bolt to the proper
specifications. (See figure 16)
(See Table C or parts
breakdown)
Valve life is dependant on many
variables. Hard water, cavitation,
corrosion, chemicals and
equipment care. The valves are
a wear item and need periodic
replacement. Worn O-rings or
damaged valves will cause pressure
loss and pulsations.
Servicing the Packings/Seals
Packings:
Disassembly:
To access the water seals for inspection or
replacement, you will first need to remove the
head of the pump.
NOTE: It is important to make note of the order
in which the components of the packing stack
are arranged and facing during disassembly.
1. Remove the head bolts.
2. Insert small pry bars between the head
and body at opposite corners and apply
pressure down on one pry bar and up on
the other pry bar. (See figure 17)
3.
of
Figure 15
4.
5.
Figure 16
6.
7.
8.
en 8
SRMW Series Pumps
Lift the head up and
away from the body.
NOTE: The packing
stacks will not always
stay in the head of
the pump when it is
removed. Sometimes
one or more components
of the packing stack will come out of
the head and stay on the plunger.
To remove any components that stay
on the plungers simply twist back and
forth while pulling up. (See figure 18)
Remove low pressure
seals insert screwdriver
under seal lip and lift up.
(See Figure 19)
Remove the piston
guides from the head
by using a reverse plier
(preferably rubber
coated) inserted into
the center of the piston
guide.
Use a back and forth twisting motion
while pulling up (clockwise and
counterclockwise).
Another method is to use a two-prong
slide hammer puller. Insert the prongs
into the piston guide allowing the
prongs to grab under the support ring
then use the
Figure 17
Figure 18
Figure 19
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