D7R Series 2 Track-Type Tractor Hydraulic System Caterpillar


Control Valve (Steering)

Usage:

D7R II ABJ



图 1g02832278

表 1
271-4967 控制阀总成 的技术规格    
项目     数量     零件     技术规格说明    
1     2     243-7112 螺栓     拧紧至扭矩为
20 ± 3 N·m (177 ± 27 lb in)。    
2     2     8T-4185 螺栓     拧紧至扭矩为
60 ± 7 N·m (44 ± 5 lb ft)。    
3     2     099-3649 螺栓     拧紧至扭矩为
20 ± 3 N·m (177 ± 27 lb in)。    
4     1     100-8011 螺塞     拧紧至扭矩为
300 ± 40 N·m (221 ± 30lb ft)。    
5     3     2S-2596 弹簧     在试验力下的长度为
7.9 mm (0.31 in)。
试验力为
4.226 ± 0.338 N (0.950 ± 0.076 lb)。
试验后的自由长度为
33.3 mm (1.31 in)。    
6     1     8C-3325 螺栓     将蓝色 Loctite 242 涂抹在螺纹上。
拧紧至扭矩为
34 ± 3 N·m (301 ± 27 lb in)。    
7     1     4T-1701 弹簧     在试验力下的长度为
59 mm (2.3 in)。
试验力为
108 ± 5 N (24 ± 1 lb)。
试验后的自由长度为
64.70 mm (2.547 in)。    
8     1     4J-6806 垫片     根据需要使用。
厚度为
1.22 mm (0.048 in)。    
9     1     112-7289 杆     移动杆所需的力应为
130 至 180 N (29 至 40 lb)。 释放后,杆应自由返回到保持位置。    
10     1     9T-6316 弹簧     在试验力下的长度为
39 mm (1.5 in)。
试验力为
133.5 ± 10.6 N (30.0 ± 2.4 lb)。
试验后的自由长度为
72.3 mm (2.85 in)。    
11     2     100-8012 阀体     拧紧至扭矩为
145 ± 15 N·m (107 ± 11 lb ft)。    
12     1     4T-1860 梭阀总成     拧紧至扭矩为
32 ± 5 N·m (283 ± 44 lb in)。    
13     1     4T-4207 节流孔螺塞     拧紧至扭矩为
10 ± 1 N·m (89 ± 9 lb in)。    

Caterpillar Information System:

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