345C Excavator Machine System Specifications Caterpillar


Final Drive

Usage:

345C BWY



图 1g01437242

注: 组装前,必须清洁螺栓、垫圈和拧紧零件的接触表面,确保没有防护涂层和机油。

(1) 20 个螺栓的扭矩 ... 900 ± 100 N·m (660 ± 75 lb ft)

(2) 2 个管塞的扭矩 ... 80 ± 10 N·m (60 ± 7 lb ft)

(3) 组装前,将 4C-5599 防咬合剂 涂抹在 6 个定位销配件的内径和外径上。

(4) 组装时,必须清洁和干燥橡胶曲面密封圈和与密封圈接触的所有表面。 安装前,在金属密封的接触表面上涂抹一薄层 6V-4876 润滑剂 。 该密封的组装必须与孔相符。 胶曲面密封圈不得有凸起。 不得扭曲胶曲面密封圈。

(5) 必要时,使用下面的垫片调整间隙 (C) :

7Y-0808 垫片 的厚度 ... 1.6 (0.06 in)

(C) 间隙 ... 1.0 到 2.6 mm (0.04 到 0.10 in)

(6) 将 4C-5599 防咬合剂 涂抹在 2 个轴承内圈配件的内径和外径上。

(7) 将 4C-5599 防咬合剂 涂抹在 2 个轴承外圈配件的内径和外径上。

(8) 组装前,必须清洁螺栓、垫圈和拧紧零件的接触表面,确保没有防护涂层和机油。

(9) 组装前,将 1U-8846 垫片密封胶 涂抹在配件上。

(10) 组装前,将 1U-8846 垫片密封胶 涂抹在齿圈的表面上。

注: 使用下面的步骤调整轴承预负载:

  1. 在轴承内圈上放置 10000 kg (22050 lb) 重的负载 (13) 。

  1. 转动壳体 (14) 以座放轴承。

  1. 将负载 (13) 降低至 3500 ± 350 kg (7715 ± 770 lb)。

  1. 测量尺寸 (G) 。

  1. 连接器齿轮 (11) 的测量尺寸 (F) 。

  1. 利用垫片 (12) 在轴承和连接器齿轮 (11) 之间获得正确的间隙。 获得正确间隙的公式是 (G-F) ± 0.05 mm (0.002 in)。

(12) 必要时,使用下面的垫片。 如果需要两个垫片,请将较薄的垫片靠连接器齿轮 (11) 安装:

7Y-1472 垫片
数量 ... 1
垫片厚度 ... 0.15 ± 0.03 mm (0.006 ± 0.001 in)
7Y-1473 垫片
数量 ... 1
垫片厚度 ... 0.30 ± 0.04 mm (0.012 ± 0.002 in)
7Y-1474 垫片
数量 ... 1
垫片厚度 ... 0.40 ± 0.05 mm (0.016 ± 0.002 in)
7Y-1475 垫片
数量 ... 1
垫片厚度 ... 0.50 ± 0.05 mm (0.020 ± 0.002 in)
7Y-1476 垫片
数量 ... 1
垫片厚度 ... 0.60 ± 0.06 mm (0.024 ± 0.002 in)
7Y-1477 垫片
数量 ... 1
垫片厚度 ... 0.70 ± 0.06 mm (0.028 ± 0.002 in)
7Y-1478 垫片
数量 ... 1
垫片厚度 ... 0.80 ± 0.07 mm (0.031 ± 0.003 in)
7Y-1479 垫片
数量 ... 1
垫片厚度 ... 1.00 ± 0.08 mm (0.039 ± 0.003 in)
7Y-1480 垫片
数量 ... 1
垫片厚度 ... 1.60 ± 0.10 mm (0.063 ± 0.004 in)

(15) 组装前,必须清洁螺栓、垫圈和拧紧零件的接触表面,确保没有防护涂层和机油。 将 4C-4030 螺纹固定剂 涂抹在螺栓螺纹上。




图 2g01437249

D 区视图

注: 安装 6 条弹簧销 (16) 后,在弹簧销孔附近稍作标桩记号。

(J) 弹簧销孔边缘到标桩记号的距离 ... 1.5 to 3.0 mm (0.06 to 0.12 in)

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