BELLOWS AS 2102531 - Caterpillar

Engine: G3406 (S/N: 4FD1-UP; 1RK1-UP; 5NW1-UP; CTS1-UP)Introduction
This Special Instruction provides the procedure that is necessary for installing the 223-6519 Cylinder Head Gp or the 223-6521 Cylinder Head Gp and the 228-8397 Cylinder Head Gasket on the G3406 Engines.Do not perform any procedure that is outlined in this Special Instruction until the entire Special Instruction has been read and understood.Installation
Illustration 1 g00918966
(1) Bolts (3/4 inch) (2) Bolts (3/8 inch) (3) StudsUse the following procedure to tighten the cylinder head bolts:
Apply 6V-4876 Lubricant to all bolt threads.
Tighten bolts 1 through 20 according to the number sequence to the following torque.Torque ... 270 27 N m (200 20 lb ft)
Tighten bolts 1 through 20 according to the number sequence to the following torque.Torque ... 390 10 N m (288 7 lb ft)
Tighten bolts 1 through 20 according to the number sequence again to the following torque.Torque ... 390 10 N m (288 7 lb ft)
Install the rocker arm group.
Tighten bolts 21 through 26 according to the number sequence to the following torque.Torque ... 270 27 N m (200 20 lb ft)
Tighten bolts 21 through 26 according to the number sequence to the following torque.Torque ... 390 10 N m (288 7 lb ft)
Tighten bolts 21 through 26 according to the number sequence again to the following torque.Torque ... 390 10 N m (288 7 lb ft)
Tighten the 3/8 inch bolts (2) to the following torque.Torque ... 43 7 N m (32 5 lb ft)
Apply 6V-4876 Lubricant to the stud threads.
Tighten studs (3) to the following torque.Torque ... 35 5 N m (26 4 lb ft)