349E Excavator Machine System Specifications Caterpillar


Bucket Cylinder

Usage:

349E L VG DGE



图 1g01502575

(1) 087-5533 套筒轴承

内径 ... 90.27 ± 0.02 mm (3.554 ± 0.001 in)
外径 ... 106.200 ± 0.013 mm (4.1811 ± 0.0005 in)
套筒轴承的安装深度 ... 9.85 ± 0.30 mm (0.388 ± 0.012 in)

(2) 用清洁润滑脂润滑 3 个环的内径和外径。

(3) 用清洁的润滑脂润滑密封的内径和外径。

(A) 活塞外径(两道棱上) ... 158.00 ± 0.10 mm (6.220 ± 0.004 in)

(B) 油缸组件孔 ... 160.00 ± 0.10 mm (6.299 ± 0.004 in)

(C) 连杆组件外径 ... 109.93 ± 0.03 mm (4.328 ± 0.001 in)

(D) 二棱头孔 ... 110.63 ± 0.03 mm (4.356 ± 0.001 in)

(4) 087-5548 套筒轴承

内径 ... 100.29 ± 0.02 mm (3.948 ± 0.001 in)
外径 ... 116.230 ± 0.013 mm (4.5760 ± 0.0005 in)
套筒轴承的安装深度 ... 10.0 ± 0.3 mm (0.39 ± 0.01 in)

(5) 组装前,在接头板的底部涂抹 1U-8846 垫片密封胶 。

注: 组装前,用 154-9731 螺纹锁固胶 涂抹挡圈 (6) 的螺纹。

(6) 挡圈的扭矩 ... 35 ± 5 N·m (26 ± 4 lb ft)

注: 用清洁的液压油润滑活塞 (7) 的螺纹。

(7) 活塞的扭矩 ... 13500 ± 700 N·m (9960 ± 520 lb ft)

(8) 在要密封的缓冲器密封件的密封唇上稍涂润滑剂。

(9) 在要密封的 U 形杯密封件的密封唇上稍涂润滑剂。

(10) 在密封的地方,用润滑剂将唇型密封的密封唇稍加润滑。

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

注: 组装前,用 154-9731 螺纹锁固胶 涂抹内六角头调整螺钉 (12) 的螺纹。

(12) 2 个内六角头调整螺钉的扭矩 ... 125 ± 20 N·m (90 ± 15 lb ft)

(13) 内六角头调整螺钉的扭矩 ... 30 ± 7 N·m (22 ± 5 lb ft)

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