TM 3-6665-209-35
calibrator plate or housing, retap the
contactor insulator and the needle
threaded holes.
bushing are flush.
(g) Make certain the flanged mating
(4) Assembly.
surface of the contactor needle
(a) Make certain that the diaphragm (5),
bushing (12) is clean and apply a
calibrator plate (4), and the
light coat of silicon grease to the
calibrator housing (8) are clean and
flange. This grease will serve as a
free of dirt. Apply a light coat of
seal against possible leakage.
silicon grease as a seal about the
Position this bushing with the
edge of the diaphragm, and position
contactor insulator (13) against the
the diaphragm in the recess of the
calibrator' housing (8) and secure
calibrator plate (4) with the button of
them in place with four lockwashers
the diaphragm (5) facing away from
(32) and screws (31).
the calibrator plate. Position the
(h) Coat three grommets (14) with
calibrator housing (6) over the
silicon grease and install the
diaphragm onto the plate and
grommets over the shaft end of the
secure the three components
needle assembly (15). Insert and
together with four lockwashers (9)
thread the needle assembly with the
and screws (10).
three grommets into the contactor
(b) Install the nipple (3) in the calibrator
insulator (13).
plate (4) and install the adapters (1
(i) Insert the top shaft (25) in its
and 48) and the elbow (47) into the
mounting holes in the calibrator
cross (2). Install the plug cock (45)
bracket (16) and install the spring
into the elbow (47) and install the
(22) and the flat washer (23) on the
cross with its attached parts onto
shaft between the two sides of the
the nipple (3).
bracket.
Note
Note
Before installing any threaded pipe
The longest end of the shaft must
connection, apply lead compound
extend beyond the bracket on the
around the threads to form a seal.
same side of the calibrator assembly
as the plug cock (43).
(c) Install the adapter (41), the elbow
(42), and the plug cock (43) in the
(j) Install the retaining rings (19, 20,
cross (40). Install the elbow (38) in
and 29) in their respective slots in
the calibrator housing (8) and install
the stop shaft (25). The retaining
the nipple (39) in the elbow (38).
ring (20) will be outside the
Install the cross with its attached
calibrator bracket (16) while the
parts onto the nipple (39).
retaining ring (29) will be inside the
(d) Install the copper tube (44) on the
calibrator bracket.
The retaining
plug cock (43) and the copper tube
ring (19) will secure the flat washer
(46) on the plug cock (45) by
(23) and the spring (22).
connecting the tube coupling nuts to
(k ) Insert the worm shaft (21) through
the respective plug cocks.
its mounting holes in the calibrator
(e) Install the pipe to tube elbow (11) in
bracket (16) making certain the
the calibrator housing (8).
large diameter end of the shaft will
(f) Apply a light coat of silicon grease
protrude through the front panel
to the contactor insulator (13). With
when the calibrator assembly is
the threaded end of the contactor
installed. As the shaft is inserted in
insulator positioned so that it will be
the bracket, install the worm (24) on
at the flanged end of the contactor
the worm shaft. Aline the hole in the
needle bushing (12) when the two
worm (24) with the hole in the worm
components are assembled, press
shaft (21) and secure the worm and
the contactor insulator into the
the worm shaft with the pin (.10).
needle bushing until the ends of the
AGO 8069A
39