3406C (PEEC III) Truck Engine Caterpillar

Illustration 1	g00501727
Model 346D

(1) Compression brake

(2) Bolt

Tighten the bolt to the following torque. ... 64 N·m (47 lb ft)

(3) Washer

(4) Solenoid valve

Tighten the solenoid valve to the following torque. ... 7 N·m (62 lb in)

(5) Nut

Tighten the nut to the following torque. ... 135 N·m (100 lb ft)

(6) Washer

(7) Slave piston adjusting screw

Adjust the brake slave piston lash while the engine is stopped. The exhaust valves must be closed in order to adjust the brake slave piston lash. Refer to the Testing and Adjusting, "Compression Brake" topic for the correct procedure for the adjustment of the compression brake.

Slave piston lash ... 1.70 mm (.067 inch)

Slave piston lash for 460 Hp engine ... 2.286 mm (.090 inch)

Note: The valve lash must be adjusted prior to adjustment of the slave piston for the compression brake.

(8) Adjusting screw locknut

Tighten the adjusting screw locknut to the following torque. ... 22 N·m (16 lb ft)

(9) Rocker arm adjustment screw

Adjust the valve lash while the engine is stopped. Refer to the Testing and Adjusting, "Air Inlet and Exhaust Syatem" topic for the correct procedure for the adjustment of the valve lash.

(10) Locknut

Tighten the locknut to the following torque. ... 30 N·m (22 lb ft)

(11) Rocker arm

(12) Shim

(13) Stud

Tighten the stud to the following torque. ... 450 N·m (330 lb ft)

(14) Bolt

Tighten the bolt to the following torque. ... 450 N·m (330 lb ft)

(15) Support bracket

(16) Bridge adjusting screw

Adjust the bridge while the engine is stopped. The exhaust valve must be closed in order to adjust the bridge. Refer to the Testing and Adjusting, "Air Inlet and Exhaust System" topic for the correct procedure for adjusting the bridge.

(17) Locknut

Tighten the locknut to the following torque. ... 32 N·m (24 lb ft)

(18) Exhaust valve bridge

(19) Nut

Tighten the nut to the following torque. ... 16 N·m (12 lb ft)

(20) Washer

(21) Leadout assembly

(22) Spacer

(23) O-ring

(24) Spacer mounting stud

Tighten the spacer mounting stud to the following torque. ... 13.5 N·m (10 lb ft)

(25) Screw

Tighten the screw to the following torque. ... 18 N·m (13 lb ft)

(26) Oil supply adapter

(27) Washer

(28) Washer

(29) Valve cover base

(30) Intake bridge

Illustration 2	g00505678
Model 349A

(1) Compression brake

(2) Flanged screw

(3) Washer

(4) Bolt

(5) Washer

Use the following procedure in order to tighten flanged screw (2) and bolt (5) :

1. Tighten flanged screw (2) .

   Tighten the flanged screw to the following torque. ... 80 N·m (60 lb ft)

2. Tighten bolt (5) .

   Tighten bolt (5) to the following torque. ... 80 N·m (60 lb ft)

3. Tighten flanged screw (2) .

   Tighten the flanged screw to the following torque. ... 165 N·m (120 lb ft)

(6) Trigger valve

Trigger adjustment ... 2.54 mm (.100 inch)

Trigger adjustment for No. 1 cylinder on 400 hp engine ... 2.54 mm (.100 inch)

Trigger adjustments for No. 2 through No. 6 cylinders on 400 hp engine ... 2.413 mm (.095 inch)

(7) Slave piston adjusting screw

Adjust the brake slave piston lash while the engine is stopped. The exhaust valves must be closed in order to adjust the brake slave piston lash. Refer to the Testing and Adjusting, "Compression Brake" topic for the correct procedure for the adjustment of the compression brake.

Slave piston lash ... 0.457 mm (.018 inch)

(8) Rocker arm adjustment screw

Adjust the valve lash while the engine is stopped. Refer to Systems Operation/Testing and Adjusting for the correct procedure on the adjustment of the valve lash.

(9) Tighten the locknut to the following torque. ... 30 N·m (22 lb ft)

(10) Bolt

(11) Hold down stud

Use the following procedure to tighten bolt (10) and hold down stud (11) .

1. Tighten bolt (10) and hold down stud (11) .

   Tighten bolt (10) and hold down stud (11) to the following torque. ... 270 N·m (200 lb ft)

2. Continue tightening bolt (10) and hold down stud (11) in 68 N·m (50 lb ft) increments. The final torque on bolt (10) and hold down stud (11) should be 450 N·m (330 lb ft) .

(12) Support base

(13) Support tube

(14) Tighten the bolt to the following torque. ... 14 N·m (10 lb ft)

(15) Exhaust valve bridge

(16) Bridge adjusting screw

Adjust the bridge while the engine is stopped. The exhaust valve must be closed in order to adjust the bridge. Refer to the Testing and Adjusting, "Air Inlet and Exhaust System" topic for the correct procedure for adjusting the bridge.

(17) Tighten the locknut to the following torque. ... 32 N·m (24 lb ft)

(18) Spacer

(19) Leadout assembly

(20) O-ring

(21) Oil supply adapter

(22) Tighten the bolt to the following torque. ... 14 N·m (10 lb ft)

(23) Washer

(24) Tighten the spacer mounting stud to the following torque. ... 13.5 N·m (10 lb ft)

(25) Washer

(26) Valve cover base

(27) Intake bridge