Any input on Cutler-Hammer Starter?

td456

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& h' c. Y, U+ {7 iTwo  cutler –hammer advantage  starters are  doing the same thing:
# ?  v' H( S3 R0 G* l After start 2-3 times, they will quit working, if you toggle the  start and stop buttons on DCS screen  , you will get another 2-3 running before they quit working again.
' t. E9 R* y  j" O- J1 gIt is a cycle.
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We isolate the network control and use the local start and stop only, the problem remains.
$ j1 s) a- @  |+ H! H7 u: CSwap one of the defective buckets with a good one, the new bucket works fine.
The problem should be inside the bucket.

5 T/ J2 _( W5 `& `; OWhen the problem happened, we observed that  the contactor has a pulling action but will not seal.
Use a terminating screw divers to push in the contactor, it will not seal either.
Confirm with TECH support this should be a problem with the control circuit board inside the advantage starter, we  bought two new control circuit boards and replaced the old ones, the problem is still the same.
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The next thing we can think of  is the coil, we took the coil out to have a close look.
' B5 t  k9 V2 R% u0 VThey  have a fork to pinch inside the two leads to make connection, it is not a good design at all. We soldered  the connection and tried again.
5 E1 c7 I! ]" j, U! R It is getting better  this time, we have 7-8 times of running before it quit working.
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# y2 s' V3 H) j: c0 T! `8 jThe coil should be the problem, we ordered two of them. But it will take 5-6 weeks for us to get them.
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Do you guys have any input on this issue?

侠客行

有时候主接触点太脏，也会造成启动器无法正常工作

贾电工

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: s" O, w) Z$ `$ Z$ Z/ v4 a3 a中国人在这里最好说中国话！说英语或想学英语请人到洋人论坛！

homestay

Don't know cutler –hammer advantage  starters very well, but had been worked on AB switch gears for a little while, which has two different coils, one to pull the vacum bottles up which employs larger current, another one uses less current to hold the connection---if the second coil fails, it won't be able to seal the connection.
. q) u9 @+ w1 r% O8 |) R: YSince your cutler -hammer works couple times,  I guess 侠客行 is right, or the sealing connection is just worn out.

td456

2# 侠客行
" V2 g& y1 s6 d: y1 n3 O5 }$ g也想到这一点，不过这是新装的设备。
检查过触点没问题。