120H and 135H Motor Graders Hydraulic and Steering System Caterpillar


Control Valve (Snow Plow/Dozer Lift)

Usage:

120H 124



图 1g01388478

带备用环 (6) 的控制阀横截面




图 2g01946574

不带备用环 (6) 的控制阀横截面

(1) 两个单向阀总成的扭矩 ... 80 ± 4 N·m (60 ± 3 lb ft)

(2) 用密封的润滑剂稍加润滑 O 形密封圈。

(3) 管塞扭矩 ... 35 ± 7 N·m (26 ± 5 lb ft)

(4) 安全阀总成的扭矩 ... 35 ± 3 N·m (26 ± 2 lb ft)

(5) 用密封的润滑剂稍加润滑 O 形密封圈。

(6) 用密封的润滑剂稍加润滑备用环。

(7) 102-7423 弹簧

在试验力下的长度 ... 25.10 mm (0.988 in)
试验力 ... 180.00 ± 9.50 N (40.5 ± 2.1 lb)
试验后的自由长度 ... 51.40 mm (2.024 in)
外径 ... 26.00 mm (1.024 in)

(8) 111-8234 弹簧

颜色代码 ... 浅蓝色条纹
在试验力下的长度 ... 21.00 mm (0.827 in)
试验力 ... 11.00 ± 0.60 N (2.5 ± 0.1 lb)
试验后的自由长度 ... 29.234 mm (1.1509 in)
外径 ... 15.00 mm (0.591 in)

(9) 6E-5153 弹簧

在试验力下的长度 ... 14.00 mm (0.551 in)
试验力 ... 18.00 ± 1.44 N (4.0 ± 0.3 lb)
试验后的自由长度 ... 18.38 mm (0.724 in)
外径 ... 7.2 mm (0.28 in)

(10) 6E-3007 弹簧

在试验力下的长度 ... 8.60 mm (0.339 in)
试验力 ... 0.234 ± 0.024 N (0.1 ± 0.0 lb)
试验后的自由长度 ... 10.00 mm (0.394 in)
外径 ... 4.6 mm (0.18 in)

(11) 组装时将球体轻轻座合到阀体中。

(12) 102-7412 弹簧

在试验力下的长度 ... 28.00 mm (1.102 in)
试验力 ... 46.00 ± 2.40 N (10.3 ± 0.5 lb)
试验后的自由长度 ... 48.417 mm (1.9062 in)
外径 ... 18.20 mm (0.717 in)

(13) 手柄的扭矩 ... 25 ± 6 N·m (18 ± 4 lb ft)

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