...;..--60
1TA·7.5
Figure 5-12. Removing
the
Radial
Shaft
Seal From
the
End Plates (D2A
Pump
Model
Shown)
NOTE:
The
D60A
and
D90A
pump
model has
two
retaining brackets (59)
and
two
valve plates (58)
that
must
be
removed.
NOTE:
For
use
during
reassembly,
the
thicker
viton section
of
the
valve plate (58) faces up.
D-12
NOTE: When removing
the
valve
stop
(51), observe
the
orientation
of
the
valve
stop,
valve plate (50), and
pump
cylinder (46). It
is
important
that
these parts are placed in this same
orientation
during reassembly (see Figure
5-14).
Unscrew and remove
the
four
screws
that
attach
the
valve
stop
(51)
to
the
top
of
the
second stage
pump
cylinder
(46). Remove
the
valve
stop
(51)
and
thin metal valve plate (50)
from
the
pump
cylinder (46). (See Figure 5-14.)
NOTE:
The
valve
stops
(51)
on
the
larger
pumps
are cast aluminum. On
most
of
the
smaller pumps,
the
valve
stops are a black plastic.
67168
1TA-3.14A
Figure 5-13. D4A Module Showing Retaining Bracket
and
Valve Plate
TRIVAC "A" Manual, Edition L
25
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