C13, C15, and C18 Tier 4 Final Engines Caterpillar

Cylinder Head Valves

Usage:

826K 232

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图 1	g02574216

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表 1
223-9250 缸盖总成的技术规格
项目	数量	零件	技术规格说明
1	24	247-9908 弹簧	在测试力下的长度为 67.12 mm (2.643 in)。测试力为 320 ± 25 N (72 ± 6 lb)。测试后的自由长度约为 76.70 mm (3.020 in)。
2	24	211-3122 弹簧	在测试力下的长度为 60.14 mm (2.368 in)。测试力为 150 ± 12 N (34 ± 3 lb)。测试后的自由长度约为 71.70 mm (2.823 in)。
A	-	-	从缸盖顶部至气门导管顶部的高度为 35.0 ± 0.5 mm (1.38 ± 0.02 in)。
3	24	122-7375 气门导管	装配前，将清洁的发动机机油涂覆到孔中。缸盖中用于安装气门导管的孔径为 15.97 mm (0.629 in)。
4	12	153-7024 排气门	在安装到缸盖中之前，在气门杆上涂覆清洁的发动机机油。端面角度为 45.75 ± 0.25 度。气门杆直径为 9.441 ± 0.010 mm (0.3717 ± 0.0004 in)。气门头直径为 41.81 ± 0.13 mm (1.646 ± 0.005 in)。
5	12	153-7023 进气门	在安装到缸盖中之前，在气门杆上涂覆清洁的发动机机油。端面角度为 60.75 ± 0.25 度。气门杆直径为 9.441 ± 0.010 mm (0.3717 ± 0.0004 in)。气门头直径为 47.00 ± 0.13 mm (1.850 ± 0.005 in)。
6	12	226-5561 气门座镶圈	气门座端面角度为 45.25 ± 0.25 度。外径为 42.840 ± 0.013 mm (1.6866 ± 0.0005 in)。缸盖中用于安装气门座镶圈的孔径为 42.774 ± 0.025 mm (1.6840 ± 0.0010 in)。缸盖中用于安装气门座镶圈的孔深度为 13.90 ± 0.05 mm (0.547 ± 0.002 in)。
7	12	224-3983 气门座镶圈	气门座端面角度为 30.25 ± 0.25 度。外径为 48.025 ± 0.013 mm (1.8907 ± 0.0005 in)。缸盖中用于安装气门座镶圈的孔径为 47.950 ± 0.025 mm (1.8878 ± 0.0010 in)。缸盖中用于安装气门座镶圈的孔深度为 14.00 ± 0.05 mm (0.551 ± 0.002 in)。

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