0333462 JOHNSON ORIFICE, No. 31C

Illustration 1 g03818439
Table 1
Specification for 377-7387 Air Lines Gp
Item Qty Part Specification Description
1 12 9X-8873 Bolt Before assembly, lubricate the threads, the bearing surfaces, and the inside diameter of clamps with Bostik Never-Seez Marine Grade.
2 4 9X-8881 Bolt Before assembly, lubricate the threads, the bearing surfaces, and the inside diameter of clamps with Bostik Never-Seez Marine Grade.
3 12 0S-1589 Bolt Before assembly, lubricate the threads, the bearing surfaces, and the inside diameter of clamps with Bostik Never-Seez Marine Grade.
4 8 0S-1591 Bolt Before assembly, lubricate the threads, the bearing surfaces, and the inside diameter of clamps with Bostik Never-Seez Marine Grade.
5 14 0L-2070 Bolt Before assembly, lubricate the threads, the bearing surfaces, and the inside diameter of clamps with Bostik Never-Seez Marine Grade.
6 4 9X-8880 Bolt Before assembly, lubricate the threads, the bearing surfaces, and the inside diameter of clamps with Bostik Never-Seez Marine Grade.
Illustration 2 g03818445
Left side view
Table 2
Item Qty Part Specification Description
7 1 8H-3390 Full Nut Torque to 200 20 N m (148 15 lb ft).
8 1 176-3587 Clevis Before assembly, apply blue Loctite 243 to the threads.
9 1 1A-9579 Bolt With the choke plate assembled on the shaft, fully close the plate. Tighten the adjusting bolt until the bolt contacts with the stop plate. Tighten the adjusting bolt and additional quarter turn and tighten the locking nut to the standard torque.
For the choke open position, ensure that the actuator cannot force the plate past the fully open stop. With the actuator fully extended and the full open stop plates contacting. Shortening the length of the connecting rod a half a turn will create a small gap between the two full open stop plates. Then lock the linkage into place and insure the plate can still reach the full closed stop.
10 1 3S-2713 Full Nut Torque to 25 6 N m (221 53 lb in).
11 1 211-8175 Electronic Actuator Gp Assemble the actuator so the inlet and outlet ports are aligned as shown. The actuator ports are stamped "Inlet" and "Outlet".
For the choke open position, ensure that the actuator cannot force the plate past the fully open stop. With the actuator fully extended and the full open stop plates contacting. Shortening the length of the connecting rod a half a turn will create a small gap between the two full open stop plates. Then lock the linkage into place and insure the plate can still reach the full closed stop.
12 1 1S-3584 Full Nut Torque to 25 6 N m (221 53 lb in).
13 1 384-1217 Control Rod Assemble the rod to provide equal thread engagement in each rod end.
For the choke open position, ensure that the actuator cannot force the plate past the fully open stop. With the actuator fully extended and the full open stop plates contacting. Shortening the length of the connecting rod a half a turn will create a small gap between the two full open stop plates. Then lock the linkage into place and insure the plate can still reach the full closed stop.
14 2 8B-7997 Bolt Before assembly, lubricate the threads, the bearing surfaces, and the inside diameter of clamps with Bostik Never-Seez Marine Grade.
15 4 6V-6845 Locking Bolt Assemble the choke plate to the shaft, leaving the mounting bolts loose. Then assemble the thrust washer and tighten the bolts to the standard torque. Fully close the choke plate and tighten the mounting bolts to the standard torque.
16 1 425-6727 Butterfly Plate With the choke plate assembled on the shaft, fully close the plate. Tighten the adjusting bolt until the bolt contacts with the stop plate. Tighten the adjusting bolt and additional quarter turn and tighten the locking nut to the standard torque.
For the choke open position, ensure that the actuator cannot force the plate past the fully open stop. With the actuator fully extended and the full open stop plates contacting. Shortening the length of the connecting rod a half a turn will create a small gap between the two full open stop plates. Then lock the linkage into place and insure the plate can still reach the full closed stop.
17 1 384-1216 Shaft Assemble the choke plate to the shaft, leaving the mounting bolts loose. Then assemble the thrust washer and tighten the bolts to the standard torque. Fully close the choke plate and tighten the mounting bolts to the standard torque.
18 1 6I-1644 Thrust Washer Assemble the choke plate to the shaft, leaving the mounting bolts loose. Then assemble the thrust washer and tighten the bolts to the standard torque. Fully close the choke plate and tighten the mounting bolts to the standard torque.
19 2 0S-1594 Bolt