Cashco Premier - Manual (Page 16)

IOM-148 16
at least one bolt hole of the yoke (12) with one
bolt hole in the arm housing (4). Insert one cap
screw (24) from behind the yoke’s (12) bolt
hole and engage with the tapped opening in
the arm housing (4); fi nger tighten cap screw
(24).
8. Reposition actuator assembly (AA) as re quired
to align the three remaining bolt holes secur-
ing yoke (12) with arm housing (4). In sert the
three cap screws (24) and fi nger-tighten.
9. Use cardboard, or some tool that can pro vide
ap prox i mate ly 1/32" (0.80 mm) thick ness,
and wedge three such spacers be tween the
cir cum fer en tial edge of dust cover plate (23)
and the round opening in the arm housing (4).
10. Wrench-tighten in one-half revolution in cre-
ments and alternating cross-pattern the four
cap screws (24) securing actuator as sem bly
(AA) to body assembly (BA). Final tightening
should be by torque wrench to 30-35 ft-lbs
(40-47 N-m).
11A. For units (AA, BA) with Model 73N-B P/P
positioner:
a. Secure characterization cam (12) prop er ly
oriented over the two rolled spring pins
(50) stuck into the inner lever arm (5).
b. Place the outer lever arm (5) over the
two spring pins (50) with the bolt holes
align ing. Press the apparatus (5,50,50,5)
to geth er.
11B. For Units (AA, BA) with no positioner, Model
9540R P/P positioner or 991 or PS2 I/P po-
sitioner:
a. Similar to 11A. above, except a spacer
wash er (12) replaces the cam (12) of a
Model 73N-B P/P positioner.
12. Position valve plug (Ranger (6)) / disc (Pre mier
(3.1) in the proper “Full Closed” or “Full Open”
position. NOT FOLLOWING THIS ARTICLE
WILL CAUSE ME CHAN I CAL DAMAGE TO
THE UNIT’S (AA, BA) MECH A NISM! See
Figure 13.
13. Place properly oriented lever arm ap pa ra tus
(5,50,12,50,5) over shaft’s (Ranger (7), Pre-
mier (3.2)) square end and push into place
while holding lower L.H. rod end (9) “swung”
aside so as to not interfere. NOTE: For units
(AA, BA) with 73N-B P/P positioner, it will be
nec es sary to “swing” the feedback linkage
subassembly ((72)) out of the way as the
lever arm apparatus (5,50,12,50,5) is pushed
into place. Center-align lever arm apparatus
(5,50,12,50,5) transversely within the arm
housing (4), directly over stop screw (35).
14A. For units (AA, BA) with Model 73N-B P/P po-
sitioner: Place indicator spacer (17) over end
of shaft (Ranger (7), Premier (3.2)) prop er ly
oriented for travel indicator (16) to be “located”
by spring pin (51). See Fig. 13.
14B. For units (AA, BA) with Model 9540R P/P
positioner or 991 oR PS2 I/P positioner:
Reference the IOM-9540R or 991 or PS2 for
proper instructions on reinstallation of in di ca tor
spacer (17) and drive coupling ((32)).
15. Align the bolt holes in lever arms (5) and lower
L.H. rod end (9). NOTE: For units (AA, BA)
with ATO-FC action it will be necessary to
offset “stem windup” by –
a. Rotating manual handwheel operator
(MHWO) handwheel (58.1) ap prox i mate ly
1-3 rev o lu tions CW (viewed from above
handwheel) until the bolt holes of lever
arms (5) and lower L.H. rod end (9) are
aligned.
b. Pressurize actuator casing (1) only until
the bolt holes of the lever arms (5) and
the lower L.H. rod end (9) align.
16. Insert shoulder bolt (40) through the round
opening of the arm housing (4) and into the
bolt holes of lever arms (5) and lower L.H. rod
end (9).
17. Ensure that lever arm apparatus (5,50,12,50,5)
is transversely centered within the arm hous-
ing (4). Engage lock nut (46) together with
shoulder bolt. Wrench-tighten to a torque of
15-20 ft-lbs (20-27 N-m).
18. Place ball bearing (18) into cover plate (13).
Place cover plate (13) into arm housing (4) in
correct orientation. There should be a prob lem
with the cover plate (13) not aligning properly.
Slowly remove the “stem windup” in tro duced
in Article 15 above by reversing the loading
forces from the manual handwheel operator
(MHWO) or the air pressure to ac tu a tor upper
casing (1). Removal of the forces will allow
the cover plate (13) bolt holes to align with
those of the arm housing (4), and allow the
cover plate (13) to properly shoulder into the
arm housing (4).
19. Secure cover plate (13) to arm housing by
engaging the four cap screws (34) into the
arm housing (4); fi nger-tighten. In a crossing
pattern wrench-tighten the four cap screws (34)
in 1/4 revolution increments using a 7/32" allen