776D, 777D and 777D HAA Off-Highway Truck/Tractors Power Train Caterpillar


Rear Axle Housing End Play - Adjust

Usage:

777D 2YW



图 1g00649772

(1) 螺栓

(2) 盘

(3) 盖

(4) 螺栓




图 2g00649773

剖面 A-A

(5) 销组件

(6) 止推垫圈

(7) 轴承

(8) 螺栓

(9) 垫片

轴向间隙调整步骤

  1. 使用三个彼此间隔 120° 的螺栓 (1) 将挡板 (2) 组装到销 (5) 上。 此时请勿使用垫片 (3) 。

  1. 均匀地拧紧螺栓 (1) 至 200 ± 25 N·m (148 ± 18 lb ft)。 安装螺栓 (4) 和垫圈,但此时不要拧紧螺栓 (4) 。

    注: 止推垫圈 (6) 内侧的斜面必须背对轴承 (7) 。 该斜面可提供销 (5) 止推面上的半径间隙。

  1. 使用深度千分尺测量从挡板 (2) 顶部到销 (5) 末端的间距。 通过挡板 (2) 上的孔测量这段间距。

  1. 拆下螺栓 (1) 和挡板 (2) 。 使用外千分尺测量挡板 (2) 的厚度。

  1. 将挡板 (2) 的厚度从步骤 3 中得到的间距中减去。 这是销 (7) 和挡板 (2) 之间的间隙。

  1. 将 0.25 mm (0.010 in) 加上在步骤 5 中得到的间距。 所得即为垫片组的厚度。 安装正确数量的垫片组 (9) 中的垫片。

  1. 使用六只螺栓 (1) 和垫圈来安装挡板 (2) 和垫片 (9) 。 拧紧螺栓 (1) 至 750 ± 90 N·m (553 ± 66 lb ft)。

  1. 拧紧螺栓 (4) 和垫圈至 1125 ± 100 N·m (830 ± 75 lb ft)。

    注: 组装前,在盖的孔上涂敷 4C-5593 防咬合润滑剂 。

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