故障排除

故障排除

故障

原因

解决的办法

 

 

 

 

 

 

汽油发动机很难拉动 (无法起动)

液压太高

逆时针旋转液压旋钮至最低值

 

 

 

汽油发动机不起动

开关没有接通,油位低,无汽油

参阅所提供的发动机手册

 

 

 

汽油发动机工作不正常

发动机有问题

参阅所提供的发动机手册

 

 

 

 

升高

参见发动机修理配件包。

 

 

4.0 hp - 288678 / 5.5 hp - 248943 /

 

 

6/5 hp - 248944 / 9.0 hp - 248945

 

 

 

汽油发动机工作,但活塞泵不工作

液压泵阀位于关断位置

将液压泵阀置于接通位置

 

 

 

 

压力设定值太低

增大压力,第 21

 

 

 

 

活塞泵出口过滤器 (若使用)脏污或堵塞

清洗过滤器

 

 

 

 

喷嘴或喷嘴过滤器 (若使用)堵塞

卸下喷嘴和/或过滤器,并进行清洗

 

 

 

 

液压流体液位太低

关闭喷涂机。添加流体 *。见第 17

 

 

 

 

皮带磨损或断裂或脱落

更换。参见手册 311797

 

 

 

 

液压泵磨损或损坏

将喷涂机送至 Graco 经销商处进行修理

 

 

 

 

涂料泵的活塞柱被干涂料卡住

对泵进行维修。参见手册 311845

 

 

 

 

液压电动机不动

将泵阀置于关断位置。将压力降低。关闭发动

 

 

机。上下撬动活塞柱直到液压电动机能动。

 

 

手册 311797

 

 

 

活塞泵工作,但上行程的输出量低

活塞止回球未正确就位

修理活塞止回球。参见手册 311845

 

 

 

 

活塞密封圈磨损或损坏

更换密封圈。参见手册 311845

 

 

 

活塞泵工作,但下行程和/或上下两个行程的

活塞密封圈磨损或损坏

紧固密封螺母或更换密封圈。参见手册 311845

输出量低

 

 

吸料阀的止回球未正确就位

修理吸料阀止回球。参见手册 311845

 

 

 

 

 

吸料管漏气

 

 

 

 

涂料沿油杯侧面泄漏并流出

油杯松动

将油杯拧紧使之刚好止住渗漏

 

 

 

 

喉部密封垫磨损或损坏

更换密封圈。参见手册 311845

 

 

 

液压电动机活塞柱刮刷四周渗漏过多

活塞柱密封件已磨损或损坏

更换这些部件。参见手册 311797

 

 

 

流体输出速度低

压力设定值太低

增大压力,第 21

 

 

 

 

活塞泵出口过滤器 (若使用)脏污或堵塞

清洗过滤器

 

 

 

 

接至泵入口的吸料管路未拧紧

拧紧

 

 

 

 

液压电动机磨损或损坏

将喷涂机送至 Graco 经销商处进行修理

 

 

 

 

流体软管内的压力下降太多

使用直径较大的软管或较短的软管

 

 

 

喷涂机过热

涂料积聚在各液压部件上

清理

 

 

 

 

机油油位低

注满机油。见第 17

 

 

 

从喷枪中喷溅出

流体泵或软管里有空气

检查吸料管组件的连接有无松动,拧紧,然后

 

 

重新给泵填料

 

 

 

 

吸料口的吸力变松

拧紧

 

 

 

 

流体供应量太低或没有供应

重新装满供料桶

 

 

 

液压泵的噪声太大

液压流体的液位低

关闭喷涂机。添加流体 *。见第 17

 

 

 

电动机不工作

电源开关未接通

接通电源开关

 

 

 

 

断路器跳闸

检查电源处的断路器。复位电动机开关

 

 

 

* 经常检查液压流体的液位。不要让液位太低。只能使用 Graco 公司认可的液压流体,见第 17

页。

 

 

 

30

311796B

Page 30
Image 30
Graco Inc 311796B important safety instructions 故障排除, 解决的办法

311796B specifications

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