773D Off-Highway Truck and 775D Quarry Truck Hydraulic System Caterpillar


Hoist Cylinder

Usage:

773D 7CS



图 1g01811574

油缸的冲程

第 1 阶段的冲程 ... 822.8 mm (32.39 in)
第 2 阶段的冲程 ... 796.9 mm (31.37 in)
油缸的总冲程 ... 1619.7 mm (63.77 in)

(A) 油缸组件的内径 ... 209.55 ± 0.10 mm (8.250 ± 0.004 in)

(B) 杆组件的外径 ... 126.950 ± 0.038 mm (4.9980 ± 0.0015 in)

(C) 活塞外径(两道凸台上) ... 162.56 ± 0.03 mm (6.400 ± 0.001 in)

(1) 油缸组件

油缸组件的内径 ... 165.15 ± 0.08 mm (6.502 ± 0.003 in)
油缸组件的外径 ... 190.450 ± 0.038 mm (7.4980 ± 0.0015 in)
两个凸台上方油缸组件的外径 ... 208.28 ± 0.13 mm (8.200 ± 0.005 in)

(D) 两个凸台上方缸盖的内径 ... 190.57 ± 0.03 mm (7.503 ± 0.001 in)

(E) 三个凸台上方缸盖的内径 ... 127.50 ± 0.05 mm (5.020 ± 0.002 in)

(2) 利用所密封的润滑剂轻轻润滑 U 形杯密封件的密封唇。

(3) 利用所密封的润滑剂轻轻润滑刮油密封件的密封唇。

(4) 8 只螺栓的扭矩 ... 430 ± 60 N·m (317 ± 44 lb ft)

(5) 6 只螺栓的扭矩 ... 240 ± 40 N·m (177 ± 30 lb ft)

注: 将缸盖 (6) 组装至油缸组件 (1) 前,必须涂抹下列两种密封胶。 在油缸组件 (1) 杆端的内螺纹上涂抹 4C-4032 轴承安装固定胶 。 在缸盖 (6) 的最后三个螺纹上涂抹 4C-9614 硅密封胶 。

(6) 缸盖的最大扭矩 ... 1000 N·m (738 lb ft)

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