SWITCH 7S9625 - Caterpillar

Illustration 1 g06195220
Table 1
Specification for 508-7702 Cylinder Head As
Item Qty Part Specification Description
1 2 475-6595 Valve Seat During installation, shrunk the valve seat insert with reduced temperature (Reference temperature : −60° C (−76° F)) and ress the insert into the cylinder heads counterbore.
2 2 456-0411 Valve Seat During installation, shrunk the valve seat insert with reduced temperature (Reference temperature : −60° C (−76° F)) and ress the insert into the cylinder heads counterbore.
3 7 3B-0623 Cup Plug Apply Loctite 540 to the bores for the cup plugs prior to the installation.
4 3 3B-0645 Cup Plug Apply Loctite 540 to the bores for the cup plugs prior to the installation.
E - - Installation depth for cup plug is 9.0 0.5 mm (0.35 0.02 inch).
F - - Installation depth for cup plug is 1.0 0.5 mm (0.04 0.02 inch).
Illustration 2 g06195231
Table 2
Bolt Tightening Procedure in the 416-8282 Block Spacer Gp
Item Qty Part Specification Description
5 6 448-3955 Cylinder Head Fastener Gp Use the following procedure to tighten the bolts for the cylinder head as shown in Illustration 2.
1. Before assembly, apply clean engine oil to the bolt threads.
2. Tighten bolt 1 through 8 in the numerical sequence to 30 5 N m (22 4 lb ft).
3. Again, retighten bolts 1 through 8 in the numerical sequence to 100 15 N m (74 11 lb ft).
4. Again, retighten bolts 1 through 8 in the numerical sequence to 450 15 N m (330 11 lb ft).
5. Loosen bolts 1 through 8 in the numerical sequence to an angle of 180 5 degrees.
6. Tighten bolts 1 through 8 in the numerical sequence to 180 15 N m (133 11 lb ft).
7. Again, retighten bolts 1 through 8 in the numerical sequence to 180 15 N m (133 11 lb ft) and turn an extra angle of 180 5 degrees.
Note: Tighten bolts (7) only after bolts 1 through 8 have been given the final torque.
8. Tighten bolts (7) to 55 10 N m (40 7 lb ft).
6 2 448-3958 Cylinder Head Fastener Gp
7 2 5B-0213 Bolt