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关于离合器故障排除

2024-02-04

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离合器作为汽车传动系中直接与发动机相联系的总成件,是汽车传动系中直接与发动机相联系的总成件,用于保证车辆平稳起步和平顺换挡,所以也是消耗较大及故障出现较多的部位,于是小编总结了几条故障排除办法,但愿对大家行车能够有所帮助。 

一、离合器打滑 

1、故障现象:

卡车功率明显不足,低挡起步困难,重载无法起步,而发动机仍然稳定运转。

2、故障原因及排除

①摩擦片表面有油污、引起打滑;

应拆开离合器,清洗摩擦片和从动盘。

②压力弹簧弹力变小或折断,导致正压力减小、摩擦力不足;

应更换弹簧。

③摩擦片磨损大或铆钉露出,摩擦力减小;

应换摩擦片或重新铆好。

④从动盘、摩擦片烧损或变形;

应进行校正或更换新新的离合器片。

⑤离合器调整间隙过小或不一致,导致踏板无自由行程;

应调整间隙到规定范围内,并使三个分离杠杆在同一平面内。

二、离合器分离不彻底 

1、故障现象:

将离合器踏板踩到底,离合器主动、从动盘之间的动力仍不能完全切断,致使挂挡困难、打齿或不能停车、离合器发热。

2、故障原因及排除

①离合器分离爪与分离轴承的间隙过大;

应调整至0.3-0.5毫米范围内。

②离合器踏板自由行程过大;

应调整至20-40毫米范围内。

③离合器从动盘翘曲变形严重或锈蚀;

应校正或更换新件或清除锈蚀。

④离合器轴花链磨损,从动盘不能移动;

应修整或更换新件。

⑤三个分离杠杆不易在同一个回转平面上,造成弹簧力清除不一;

应按规定重新调整。

⑥摩擦片破裂;

应更换新片。

⑦离合器轴承损坏,致使分离离合器时离合器产生轴向移动

应更换新轴承。

三、离合器颤动 

1、故障现象:

起步时整车抖震,特别是怠速运转、挂低挡逐渐放松离合器踏板起步时,车出现连续性冲击。

2、故障原因及排除

①三个分离杠杆头部端面不在同一平面内;

应正确调整离合器。

②压盘弹簧的弹力不相同或个别弹簧折断;

应检查弹簧,需要时更换。

③摩擦片拱曲变形;

应校正、修理或更换。

四、离合器响声异响 

1、故障现象:

当踩下离合器踏板少许时,分离轴承内端面与分离杠杆刚一接触,离合器即发出“嚓、嚓、嚓”的连续响声;起步时接合或行进中分离时产生响声并伴有发抖。

2、故障原因及排除

①分离轴承缺有或损坏;

应向分离轴承加注润滑油,无效则更换。

②从动盘或压盘破裂;

应分解离合器,更换损坏机件。

(来源:陕汽)