PLATE AS 2488184 - Caterpillar

Illustration 1 g00894620
Left side view of the air choke for in-line engines with TPS turbochargers
Illustration 2 g00894621
Left side view of the air choke for in-line engines with VTC turbochargers
(1) Choke plate (2) Shaft Bore in housing for shaft bearings ... 15.081 0.009 mm (.5937 .0004 inch)Outside diameter of shaft bearings ... 15.120 0.018 mm (0.5953 0.0007 inch) (3) Bolt (4) Thrust washer Width of groove in shaft for thrust washer ... 6.48 0.10 mm (0.255 0.004 inch)Thickness of thrust washer ... 6.00 0.05 mm (0.236 0.002 inch) (5) Bolt (6) Locking nut (7) Adjusting bolt (8) Stop plate (9) Plate (10) Inlet port for the actuator (11) Outlet port for the actuator (12) Full nut Torque for full nut ... 200 20 N m (150 15 lb ft) (13) Rod Distance between the center bores of the rod ends ... 25.36 cm (9.984 inch) (14) Clevis (15) Full nut Torque for full nuts ... 25 6 N m (18 4 lb ft) (16) Bolt (17) O-ring seal
Illustration 3 g00894722 (A) Angle for the lever in the fully closed position ... 20 degrees (B) Angle for the lever in the fully open position ... 55 degreesUse the following procedure to assemble the air choke:
Assemble choke plate (1) to shaft (2). Loosely install bolts (3).
Install thrust washer (4) and tighten bolts (5).
To ensure that bolts (3) are properly seated in shaft (2), fully close choke plate (1) and tighten bolts (3).
Make sure that choke plate (1) is fully closed. Loosen locking nut (6) and turn adjusting bolt (7) until the bolt is seated against stop plate (8). Tighten the bolt for an additional 1/4 turn (90 degrees) and then tighten the locking nut.
Assemble the actuator with inlet port (10) in the upward position and with outlet port (11) in the downward position. Tighten full nut (12) to the specified torque.
Assemble rod (13). Provide equal engagement of the threads at both ends of the rod until the distance between the center bores of the rod ends is approximately the specified length.
Apply 4C-4030 Thread Lock Compound to the threads of clevis (14).
For final adjustment of the linkage, ensure that the actuator does not try to force stop plate (8) past plate (9) when the choke plate is moved to the fully open position.
Fully extend the actuator. Make sure that the choke plate is in the fully open position and that stop plate (8) contacts plate (9).
Then reduce the length of rod (13) by 1/2 turn (180 degrees). This allows a clearance between stop plate (8) and plate (9).
Make sure that the choke plate can achieve the fully closed position. Tighten full nuts (15) to the specified torque.
Apply 4C-5597 Anti-Seize Compound to the threads and to the face of bolts (16).
Apply glycerin to O-ring seal (17).