So ... the neighbor has a manlift that died. He is an older farmer that I am trying to help out.

It stopped moving ... did some searching and found the foot switch in the basket was bad.

Pulled it apart ... it has two BA-2R62-A4 Mirco Switches in it ... one is bad.

So ... pulled up the cut sheets on Honeywell Micro Switch ... No 62 in any of their part number!

I called them to see what the 62 meant .... they looked and could not tell me!

They still make a BA-2R-A2 (and A4 ... this is just a #6 or #8 screw terminal).

They sent me a drawing of the BA-2R62-A4 and BA-2R-A4 ... both seem to be identical! I compared everything .. ratings .... sizes .... travel .....

The only difference I can see is an added note on the "62" saying "switch must withstand 2000 volt dielectric between common and normally open terminals" ... which really means nothing to me as the lift as a 12 volt system in it.

So is there any way of knowing what the 62 in the part number meant?

I just want to make sure I don't miss anything when I get a replacement switch.

Thanks!

 

It's only rated for 2 amps; you should be able to fit almost any of the micro switches out there. There is no lever or operating mechanism evidently??
You can get all kinds on Amazon for cents

 

It's only rated for 2 amps; you should be able to fit almost any of the micro switches out there. There is no lever or operating mechanism evidently??
You can get all kinds on Amazon for cents

Actually, it is rated for 20 amps. Yes, no lever ... just a small pin sticking up about an 1/8".

Super heavy duty casting foot pedal to enclose it.

Thanks

 

The 62 appears to be an arbitrary numbering for extended features - 24 is 250 temp range, 72 is gold contacts etc

If your application is 12V then I wouldn't be too concerned about the 62.

 

Actually, it is rated for 20 amps. Yes, no lever ... just a small pin sticking up about an 1/8".
Super heavy duty casting foot pedal to enclose it.
Thanks

I very much doubt it! I have never come across a micro switch rated that high?
What is it directly operating? A relay ?

Here is what I found on it.

 

Hello,

https://assets.alliedelec.com/image...tasheets/e1e45752d626c015ba5aaf0ae5713abe.pdf

https://us.rs-online.com/product/linemaster/534-ss/70183970/

Bertus

 

I very much doubt it!

I'm afraid your doubt is misplaced - it is a 20A microswitch.

Here is the datasheet

 

Hello,

https://assets.alliedelec.com/image...tasheets/e1e45752d626c015ba5aaf0ae5713abe.pdf

https://us.rs-online.com/product/linemaster/534-ss/70183970/

Bertus

Oops, sorry, you beat me to it.

 

I'm afraid your doubt is misplaced - it is a 20A microswitch.

I stand corrected!
It would be interesting, however, to know what the micro-switch controlled.

 

I stand corrected!
It would be interesting, however, to know what the micro-switch controlled.

There are two of them in the foot switch (on the basket) of a JLG man lift. Looks like they are wired together to "flip" the polarity of two wire.

You can see this on page 3-25 of the manual (there is a full schematic there ... link below).

JLG 40HA manual

 

Could not quite decipher the device they appear to be switching?

 

Could not quite decipher the device they appear to be switching?

View attachment 355511

It is a very very sad drawing but usually what equipment manufactures give you. That is a circuit breaker ... small automotive type mounted on two screws. They use one of the screws as a ground terminal.

 

So what device is finally being switched by the micro?

 

So what device is finally being switched by the micro?

The wiring diagram is soooo bad, I am having problems reading the numbers and tracing wires.

My hint was, they were driving it and it stopped moving.

He stamped on the foot pedal a few time .. it moved a bit and stopped completely.

I took the pedal apart .. one switch i fine. The other has the pin just loose. No tension against it ... will go in and out when you turn the switch right side up and up side down. The one that works has a definite snap action to it.

Before I go too far, I will replace the switch and see what happens.

Just want to get the lift working for them. They are trying to get the roof on a barn before the snow flies.