to make the trigger work again only one works out of 4. lubricate it or another suggestion?

There is a small spring that holds the bars in place. Be sure its
OK. There was also a hammer assy sold with the plastic holders
& hammers. In the olden days when I was a kid we just ordered a
whole new hand unit as a rule. You can find plenty of hand units on e-bay
BUT a SC600 from different years may not work the same. Best way to
be sure is get the part # & look for one. The part # is in the
format of "S-#####".
Other problem with E-bay is the price !!!!

73 Zeno:smoke:
LFOD !

Every thing is there I didn't know of I should try lubrication or if that wasn't a good idea
For some reason

Every thing is there I didn't know of I should try lubrication or if that wasn't a good idea
For some reason

Sounds like you need to open it and compare the bad ones with the one that's working to see if something is broken, or what is different about the action.

In a pinch you can do what we did back in the shop in the 60's. Get a set of metal keys on a metal key ring and shake them until you get the desired action. :D
But does anyone use keys anymore?

Wait - I 'm not sure I understood. Do you mean the remote clicker unit itself isn't working on three buttons, or the receiver isn't responding to three functions?

I don't have the set just the remote.
I do remember them quite well.
I was checking it out.at 1st none of them work.
Just working the buttons the one started and another but very intermittent

I don't have the set just the remote.
I do remember them quite well.
I was checking it out.at 1st none of them work.
Just working the buttons the one started and another but very intermittent

Ok - then I would say again, open it up and see what's happening - should be able to tell if broken or just sticking.