844H Wheel Dozer Machine Systems Caterpillar


Pilot Operated Hydraulic Control (Joystick) - Disassemble

Usage:

844H BTW

拆卸步骤

开始:

  1. 拆下先导控制阀。 请参阅拆解和组装, "先导操作液压控制装置(操纵手柄)- 拆卸"。

注: 清洁度是一项重要的因素。 拆卸步骤开始之前,应彻底清洁部件外部。 这将有助于防止污垢进入部件的内部。




    图 1g01257817



    图 2g01257821

    ------ WARNING! ------

    被弹簧力爆出的零件击中,会招致人员伤害。

    确保穿上所有必要的保护装备。

    遵照建议的程序,并使用所有建议的工具以释放弹簧力。


  1. 拆卸螺钉 (5) 和手柄 (3) 。

  1. 拆卸护罩 (16) 、连杆 (8) 和螺母 (13) 。

  1. 拆卸螺栓 (4) 、板 (2) 和操纵杆组件 (7) 。

  1. 拆卸线圈组件 (12) 、板 (1) 和垫片 (6) 。

  1. 从先导阀 (17) 拆卸适配器 (9) 、O 形密封圈 (10) 、孔环 (11) 和板组件 (14) 。

  1. 卸下芯组件 (15) 。

  1. 采用以下步骤解体芯组件 (15) 。

    1. 拆下 O 形密封圈 (29) 、 (30) 和 (32) 。

    1. 小心地压缩环 (21) 以拆卸挡圈 (19) 。

    1. 卸下护圈 (20) 和弹簧 (21) 。

    1. 拆卸止动块 (35) 、O 形密封圈 (36) 、弹簧 (34) 和节流孔 (33) 。

    1. 从保持架 (31) 上拆下适配器 (28) 。

    1. 从适配器 (28) 上拆卸柱塞 (22) 、O 形密封圈 (23) 和钢球 (24) 。

    1. 压缩弹簧 (27) 以从滑阀 (25) 拆卸护圈 (26) 。

    1. 从保持架 (31) 上拆下弹簧 (27) 和滑阀 (25) 。

  1. 从先导阀 (17) 上卸下螺塞 (18) 和 O 形密封圈。

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