325D and 329D Excavators and 325D Material Handler Machine System Specifications Caterpillar


Stick Cylinder

Usage:

325D L A3R



图 1g01622702

注: 组装前,将锁紧螺母 (1) 的端面和螺纹用 248-7522 液压油 全部润滑一遍。

(1) 锁紧螺母扭矩 ... 10800 ± 550 N·m (7960 ± 410 lb ft)

(2) 用清洁润滑脂润滑 3 个环的内径和外径。

(3) 用清洁润滑脂润滑密封组件的内径和外径。

注: 压装期间,将套筒轴承 (4) 从锥形侧开始插入到盖组件和连杆组件中。

(4) 186-5477 套筒轴承

数量 ... 2
内径 ... 80.12 ± 0.02 mm (3.154 ± 0.001 in)
外径 ... 95.102 ± 0.011 mm (3.7442 ± 0.0004 in)
盖组件套筒轴承的安装深度 ... 7.35 ± 0.30 mm (0.290 ± 0.012 in)
连杆组件套筒轴承的安装深度 ... 7.5 ± 0.3 mm (0.30 ± 0.01 in)

(A) 缸盖组件孔 ... 150.00 ± 0.10 mm (5.906 ± 0.004 in)

(B) 连杆直径 ... 104.93 ± 0.03 mm (4.131 ± 0.001 in)

(C) 二棱头孔 ... 105.63 ± 0.03 mm (4.159 ± 0.001 in)

(5) 组装后挡块的自由直线运动 ... 0.50 ± 0.26 mm (0.020 ± 0.010 in)

(6) 组装后 2 个挡圈最大外径 ... 70.4 mm (2.77 in)

(7) 密封圈的裂缝必须沿活塞方向旋转。

(8) 114-0760 套筒轴承

外径 ... 110.148 ± 0.033 mm (4.3365 ± 0.0013 in)
厚度 ... 2.475 ± 0.025 mm (0.0974 ± 0.0010 in)

(9) 在要密封的缓冲器密封唇上稍涂润滑剂。

(10) 在要密封的 U 形杯密封唇上稍涂润滑剂。

(11) 在要密封的唇型密封唇上稍涂润滑剂。

(12) 将 4C-4032 轴承安装固定胶 涂在刮油密封槽上,然后再组装。

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