Annovi Reverberi XJ Series Manual de instruções e de peças - Página 10
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Operating Instructions and Parts Manual
Plunger Pumps
Service Pumps (Continued)
8.
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 slide
hammer to pull the
packing stack up and out
of the head. (See Figure 25)
NOTE: Damage to the piston
guides and or the seals may occur
during removal. Inspect carefully
before reusing any components of
the packing stack.
9.
Remove the high-pressure
packing by pulling
straight out with your
finger. (See Figure 26)
Assembly:
1.
Install the high-pressure
seal into the head.
NOTE: It should fit snugly. The
packing support is part of the valve
cage.
2.
Place the high-
pressure seal at an
angle and work it
into the cylinder. (See
Figure 27)
NOTE: The point of
the "V" or flat side of
the packing is pointed at
you.
3.
Lubricate the packing retainer
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Figure 25
4.
5.
6.
Figure 26
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.
NOTE: Water seals are wear items.
Life of the seals is dependent on
many factors. Water seals should be
Figure 27
replaced when water leak or a loss of
performance is noticed. Prompt
Service Pumps (Continued)
SJ & XJ Series Pumps
O-ring with a light
film of oil and install
it into the cylinder.
Push it completely into
place. (See Figure 28)
NOTE: The O-ring
will seat just inside the
manifold and you will hear
a slight pop.
Insert the low-pressure seal by
placing it into the
cylinder in at an angle
and pushing it into
place. (See Figure 29)
Put a thin coat of
oil on the plungers and
packings. (See
Figure 30)
Carefully install
the manifold
and torque
the bolt to
proper specifications.
(See Figure 31)
Figure 28
Figure 29
Figure 30
the
Figure 31
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