j (Cont'd.)
REQUIRED
ACTION:
Use
long
nose
pliers
to
insert the three
vanes
(49)
into
the slots in the
second
stage
rotor
(48)
(see
Figure 5-8).
j. Attach the
front
end plate (44)
to
the partially
assembled
module
as
follows:
(1) NOTE: The side
of
the
front
end
plate (44)
that
has
the threaded studs (62) extending
out
of
it
faces
the
second
stage
cylinder (46)
(see
Figure 5-21). The
edge
of
the
front
end
plate
that
has
a small hole
is
the bottom
edge.
REQUIRED
ACTION: While keeping the partially assembled module vertical, align the
front-end-plate bushing hole with the shaft and align the threaded studs
(62)
with their
mating holes in the rear end plate
(60).
Slide the front end plate (44) down over the shaft
until
the
plate (44) fits
tight
against the second stage cylinder (46). Install the washers
and nuts hand-tight onto the threaded studs.
(2)
NOTE:
If
the
two
remaining cylindrical pins (64)
have
a beveled end, the beveled
end
should face away from the center
of
the module.
REQUIRED
ACTION:
Align the
two
alignment holes in the
front
end plate (44) with
the
two
alignment holes in the
second
stage
cylinder
(46)_
Using a rubber hammer,
drive the remaining
two
cylindrical pins (64)
into
the alignment holes
until
the pins (64)
extend about
3/16
inch
out
of
the outside surface
of
the
front
end plate (44)
(see
Figure
5-22).
k.
CAUTION:
NICKS OR
TEARS
IN THE
RADIAL
SHAFT
SEAL COULD RESULT IN A LUB-
RICATING
FLUID
LEAK
AND
POOR
PUMP
PERFORMANCE.
NOTE: The side
of
the
seal
that
has
a small circular spring around the ID
faces
the bronze bushing
in the
front
end plate.
Figure 5-21. Driving the
Short Cylindrical
Pins
that Align the
Rear
End
Plate
and the
HV
Cylinder (D2A
Pump
Model Shown)
TRIVAC
"A"
Manual, Edition L
fTA-6.13
39
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