Cashco 5100 - Manual (Page 7)

7 IOM-5100
NOTE: Support plate (40) and pressure pal-
let stem(10) assembly will also lift out of
the body (1). (continue with step i. unless
changing gasket (49)).
To Remove Adapter Gasket: steps (e - h).
e. Lay the (AA) and weatherhood assy on
ƀ at surface.
f. Paint or embed a match mark between
weatherhood (17) and lower case adapter
assy (32).
g. Loosen and remove adapter bolts (38)
and washers (39). Set weatherhood (17)
to the side and remove pressure plate (29).
Remove and replace adapter gasket (49).
h. Align bolt holes in pressure plate (29)
and weatherhood (17) with lower case
adapter assy (32) and install lock washers
(39) and adapter bolts (38). Tighten se-
curely.
i. Remove cylinder of wire screen (27) .
Inspect seating surface of seat ring (3).
j. Straighten the bent ends of cotter pin
(62) and remove pin from support plate
(40). Slide pallet(4) assembly out of tube
end.
k. Carefully secure stem (10) in a vise,
oriented such that the pallet (4) assembly
is directed upwards.
l. Remove cotter pin (61), nut (23), lock
washer (19), washer (24), diaphragm re-
tainer plate (6), diaphragm (5) and pallet
(4) from stem (10).
m. Re-install pallet (4) on stem (10).
NOTE: Apply small amount of TFE paste
around the center opening (top surface) of
the pallet (4).
n. Place a new diaphragm (5) on the pal-
let (4). NOTE: Apply small amount of TFE
paste around the center opening (top sur-
face) of the diaphragm (5).
o. Install the diaphragm retainer plate (6),
washer (24), lock washer (19) and nut (23).
Secure nut tight to lock washer (19).
p. Push cotter pin (61) into hole in stem
(10) and secure. Remove pallet (4) assem-
bly from vise.(continue with step t. unless
changing gasket (13)).
To Remove Seat Ring/Gasket: steps (q - s).
q. Place a wrench on the milled ƀ ats of
the pallet guides (16), rotate CCW to re-
move the guides (16) and stud spacers
(69). Mark the location of guides on the
seat ring (3) for reference at re-assembly.
r. Remove four socket head cap screrws
(11) and lift out the seat ring (3). Remove
seat gasket (13) and clean sealing sur-
face.
s. Apply TFE paste to both sides of new
gasket and install in body(1). Position
seat ring (3) on gasket (13) and install cap
screws (11), guides (16) and stud spacers
(69). Tighten cap screws (11) and sup-
ports (16) to 15 ft. lbs.
t. Reposition cylinder of wire screen (27)
around top surface of seat ring (3).
u. Install stem (10)/pallet (4) assembly in
the tube end of support plate (40). Align
the drilled holes and insert cotter pin (62).
Bend prongs of pin around the stem to se-
cure it in place.
v. Grasp the case assembly (AA) (32/33)
and install on pallet guides (16). Ensure
alignment of weatherhood (17) and body
(1) per step a. above.
w. Install jack screw (7) on threaded end
of pallet guides and tighten securely. Ro-
tate jack nut (54) CW in equal increments
until they rest tight against lower case (32)
x. Rotate jam nut (55) CW to secure tight
to jack nut (54).
y. Install pilot body assembly on nipple
(53) tight with CW rotation. Ensure straight
connector (244) of the pilot valve assembly
is directly above sensing tube connector
(48) of the main valve assembly.
z. Reconnect tubing (243) to ſ ttings
(232), (234) and tubing (57) to ſ ttings
(48),(244).