C9.3 Tier 4 Final Engines Caterpillar

Cylinder Head Valves

Usage:

D6T 2B3

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图 1	g06055872

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表 1
技术规格，用于 432-5470 缸盖总成
项目	数量	零件	技术规格说明
1	24	247-9908 弹簧	测试力下的长度为 67.12 mm (2.643 inch)。测试力为 320 ± 25 N (72 ± 6 lb)。测试后的近似自由长度为 76.70 mm (3.020 inch)。
2	24	211-3122 弹簧	测试力下的长度为 60.14 mm (2.368 inch)。测试力为 150 ± 12 N (34 ± 3 lb)。测试后的近似自由长度为 71.70 mm (2.823 inch)。
A	-	-	从缸盖顶部到气门导管顶部的高度为 35.0 ± 0.5 mm (1.38 ± 0.02 inch)。
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。气门的气门导管中的孔为 9.502 ± 0.013 mm (0.3741 ± 0.0005 inch)。
4	12	464-4668 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。表面角度为 45.75 ± 0.25 度。气门杆直径为 9.441 ± 0.010 mm (0.3717 ± 0.0004 inch)。气门头直径为 41.81 ± 0.13 mm (1.646 ± 0.005 inch)。
5	12	490-7198 进气阀	在安装到缸盖中之前，在气门杆上涂覆清洁的发动机机油。表面角度为 60.75 ± 0.25 度。气门杆直径为 9.441 ± 0.010 mm (0.3717 ± 0.0004 inch)。气门头直径为 47.00 ± 0.13 mm (1.850 ± 0.005 inch)。
6	12	300-3565 气门座镶圈	端面角度为 45.25 ± 0.25 度。外径为 42.850 ± 0.013 mm (1.6870 ± 0.0005 inch)。气门座镶圈的缸盖中的孔为 42.774 ± 0.025 mm (1.6840 ± 0.0010 inch)。气门座镶圈的缸盖中的孔的深度为 13.90 ± 0.05 mm (0.547 ± 0.002 inch)。
7	12	280-3979 气门座镶圈	端面角度为 30.25 ± 0.25 度。外径为 48.025 ± 0.013 mm (1.8907 ± 0.0005 inch)。气门座镶圈的缸盖中的孔为 47.950 ± 0.025 mm (1.8878 ± 0.0010 inch)。气门座镶圈的缸盖中的孔的深度为 14.00 ± 0.05 mm (0.551 ± 0.002 inch)。

Caterpillar Information System:

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