Cashco Premier - Manual (Page 21)

IOM-148 21
(9); nut (44) is “left-handed”.
u. For Premier EZO and Premier Unlined
ONLY. Ref er ence VI.C.2. for procedure
to adjust downtravel stop screw (35).
v. Release all air pressure in actuator up-
per casing (1). Repeat loading-unloading
to cycle the valve unit (AA, BA). Repeat
adjustments as necessary.
w. Completion to this point completes the
benchset range adjustment. Proceed to
the next subsection (VI.C.) to adjust 90°
travel stop, if necessary.
C. 90° Rotation Adjustment:
1. Units with ATO-FC (Reverse) Action:
a. Pressurize actuator (AA) to the higher
value of benchset range. This pressure
should cause 90° rotation as shown by
travel indicator (16).
1. Travel short of 90°. Hub of lower
L.H. rod end (9) may be touching on
downtravel stop screw’s (35) upper
end.
a. Loosen jam nut (45).
b. Rotate downtravel stop screw
(35) CCW (viewed from below
screw (35)) until 90° rotation is
reached on the travel indicator
(16).
c. Retighten jam nut (45).
2. Travel beyond 90°. Hub of lower L.H.
rod end (9) may or may not be touch-
ing on downtravel stop screw’s (35)
upper end.
a. Loosen jam nut (45) about four
revolutions.
b. Very slowly release air pressure
into actuator (AA) until travel
in di ca tor (16) is showing at 90°.
c. Rotate downtravel stop screw
(35) CW (viewed from below
screw (35)) until the screw’s (35)
upper edge touch es the hub of
lower L.H. rod end (9).
d. Retighten jam nut (45).
2. Units with ATC-FO (Direct) Action:
a. Loosen jam nut (45).
b. Rotate downtravel stop screw (35) CW
(viewed from below screw (35)).
c. Pressurize actuator (AA) slowly until the
travel in di ca tor (16) indicates that travel
is at 0°; the valve should be in the “fully
closed” position.
d. Adjust gap between downtravel stop screw
(35) and hub of lower L.H. rod end (9) as
indicated in following table.
e. Retighten jam nut (45).
m. Adjust the push rod (10) by rotating CW
(viewed from above) until the holes of
the lever arms (5) and the lower L.H.
rod end (9) are centered and the valve
is in the “closed” position.
n. Reinstall the shoulder bolt (40) through
the lever arm (5) and lower L.H. rod end
(9) holes. Finger-tighten lock nut (46)
onto shoulder bolt (40). Using a 1/4"
allen key wrench to secure the head
of shoul der bolt (40), torque wrench-
tighten nut (46) to 15-20 ft-lbs (20-27
N-m).
o. Loosen double jam nuts (43,43) on top
side of uptravel stop washer (54).
p. With valve in “closed” position, reinstall
travel indicator dial (15) and dial lens
(14), securing with two socket head
screws (31). Position dial (15) such
that travel indicator (16) shows “0°”
travel (no “bright orange” showing from
indicator (16)) be fore fully tightening
screws (31).
q. Fully release air pressure in actuator
(AA). Observe position of valve on
travel in di ca tor (16). Travel should be
short of “full open”; i.e. 90° rotation.
1. Travel short of 90°. Adjust the push
rod (10) by rotating CCW (viewed
from above) until the travel reaches
90° as shown by travel indicator
(16).
2. Travel beyond 90°. Adjust the push
rod (10) by rotating CW (viewed
from above) until the travel is
reduced to 90° as shown by the
travel indicator (16).
r. Rotate lower jam nut (43) to raise up-
travel stop wash ers (54) until the gap
clearance between the lower casing (2)
and the top side of the washer (54) is
1/8"±1/16" (3mm±1.5mm).
s. Repressurize actuator (AA) to upper
val ue of benchset range. Tighten the
lower of the two upper jam nuts (43)
until it is tight, and secure the uptravel
stop washer (54). Tighten the upper of
the two upper jam nuts (43) down to
secure the double jam nut (43) locking
effect. Retighten lower jam nut (43) on
underneath side of wash er (54).
t. Tighten lower L.H. jam nut (44) down
until locked against lower L.H. rod end
Benchset
Range
Higher Value
of Benchset
Range - “A”
Adder
Value -
“B”
Loading
Pressure
- “C”
_ psig _ psig 2 psig _ psig
_ Barg _ Barg .14 Barg _Barg