ROD 2559649 - Caterpillar

Illustration 1(1) Bolt(2) Washer(3) Air inlet cover
Remove bolt (1) and the washer (2) from the airinlet cover (3). Discard the bolt (1) and the washer (2).
Disconnect the electrical connector of the injectionactuation pressure control valve (7). Remove the injection actuation pressurecontrol valve (7) from the pump. Retain the injection actuation pressurecontrol valve (7) for the reinstallation.
Modifications to the tools may needto be made in order to reduce interference with engine components. Illustration 2 (Modified 2P5494 crowfoot wrench)
Remove the hose assembly (5), the connector (8),and the elbow (6). Discard these parts.
Illustration 3(4) HEUI pump(5) Flexible oil line(6) Elbow(7) Injection actuation pressure control valve(8) Connector
Installation of 2400716 Tube Kit
Illustration 4(4) HEUI pump(7) Injection actuation pressure control valve(9) Connector(10) Clip(11) Washer(12) Bolt(13) Spacer(14) Tube assembly(15) O-ring(16) O-ring(17) Elbow
Illustration 5(7) Injection actuation pressure control valve(9) Connector(15) O-ring(16) O-ring(17) Elbow
Apply a light coat of oil to the O-rings (15)and (16) during installation. Install the O-ring (15) on the connector(9). Install the O-ring (16) on the connector (9). Thread the connector(9) into the port on the cylinder head by hand. Tighten to 48 + 5 Nm (35+ 4 lb ft).
Apply a light coat of oil to the O-rings (15)and (16) during installation. Install the O-ring (15) on the elbow (17).Install the O-ring (16) on the elbow (17).
Back off the jam nut on the elbow (17) to thetop of the threads on the elbow assembly (17). Push the washer tightlyagainst the jam nut. Check that the washer is as tight as possible. Threadthe elbow assembly (17) into the port of the HEUI pump (4). Hand tightenthe elbow (17) into the port of the HEUI pump until the washer is tightagainst the HEUI pump (4). Unscrew the elbow assembly (17) no more thanone complete turn to 40 degrees.
Align the tube assembly (14) with the connector(9) and the elbow (17). Loosely thread each end of the tube assembly (14)onto the connector (9) and the elbow (17). Position the elbow (17) in orderto not create stress in the tube assembly (14).
Attach the clip (10) to the tube assembly (14).The flat side of the clip (10) must be toward the air inlet cover. Placethe washer (11) onto the bolt (12). Insert the bolt (12) through the clip(10) and the spacer (13).
Insert the bolt (12) through the air inlet cover(3).
Thread the bolt (12) into the cylinder head.
Hand tighten the bolt (12).
Hand tighten both connections on the tube assembly(14).
Ensure that there is no stress on thetube assembly (14) from any components or fittings.
Use a wrench to prevent the elbow assembly (17)from turning. Tighten the bottom tube fitting to the elbow assembly (17)to 40 + 4 Nm (29.5 + 3 lb ft).
Tighten the top tube fitting to the connector(9) to 40 + 4 Nm (29.5 + 3 lb ft).
Use a wrench to prevent the elbow assembly (17)from turning. Tighten the jam nut of the elbow assembly (17) to 24 + 2Nm (18 + 1.5 lb ft).
Tighten the bolt (12) to 28 +/- 7 Nm (21 +/- 5lb ft).
Illustration 6(7) Injection actuation pressure