CYLINDER HEAD AS 4P2139 - Caterpillar

Rework Procedure
Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
Illustration 2 g06262881
(1) 9X-2045 Screw
(2) 9X-2044 Screw
(3) 9X-2043 Screw
Loosen ten screws (1), (2) and (3). Five screws shown on the right side are symmetrical with the left side.Use 6 1 N m (53 9 lb in) torque during reassembly.
Illustration 3 g06262892
(4) 340-2578 Upper Cover
Remove upper cover (4).
Illustration 4 g06262897
(5) 500-6467 Cap
Remove cap (5)
Illustration 5 g06262902
(6) 149-2906 Nut Kit
Remove nut kit (6)Use 48 5 N m (35 4 lb ft) torque during reassembly.
Illustration 6 g06262906
(7) 363-5911 Steering Wheel As
(8) 8R-2918 Knob As
(9) 361-2566 Cover
Remove steering wheel as (7), knob as (8), and cover (9)
Illustration 7 g06262911
(10) 138-8454 Screw
Remove three screws (10)Note: Removal tool should reach 48 mm (1.9 inch) deep.Use 1.7 0.4 N m (15.0 3.5 lb in) torque during reassembly.
Illustration 8 g06262913
(11) 8T-4200 Bolt
Remove two bolts (11)Use 28 7 N m (248 62 lb in) torque during reassembly.
Personal injury or death can result from fumes, gases and ultraviolet rays from the weld arc.Welding can cause fumes, burn skin and produce ultraviolet rays.Keep your head out of the fumes. Use ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing area. Wear eye, ear and body protection before working.Protect yourself and others; read and understand this warning. Fumes and gases can be dangerous to your health. Ultraviolet rays from the weld arc can injure eyes and burn skin. Electric shock can cause death.Read and understand the manufacturer's instructions and your employer's safety practices. Do not touch live electrical parts.See "American National Standard Z49.1, Safety in Welding and Cutting" published by the American Welding Society.American Welding Society
2501 N.W. 7th Street
Miami, Florida 33125
See "OSHA Safety and Health Standards, 29 CFR 1910", available from U.S. Department of Labor.U.S. Department of Labor
Washington, D.C. 20210
Illustration 9 g06263029
(A) Weld Boss
Illustration 10 g06263003
(B) Weld Boss
(W1) Welds
Weld two 3 mm (0.1 inch) fillet welds, 10 mm (0.4 inch) long, 180 degrees apart. Test weld strength to 35 N m (25.8 lb ft).
Reassemble parts in reverse order.