Taking the lever apart



The 156 lever is different as one half of the lever casing is the mounting plinth. Wiring looks the same. I discovered later that I needed a replacement casing - something the 156 unit couldn't provide - so unless you happen to need replacement switches or the lever itself, there is really no need to get a replacement lever. You can work with the one you have.

To get the lever apart, drill the back end of each brass rivet (there are four). I used a pin punch to knock the rivets out.

The trick is to sand down both casing halves (only half of each can be sanded, plus the rings around the screw holes) to tighten the casing's hold on the lever. I used 80-grit sandpaper on a concrete floor as you see in the pictures below.

Several test assemblies will be necessary - don't sand off too much, or you will later have to add washers/tape between the two halves.

Next you have to rummage in your spring collection (I'm sure everyone has a collection of assorted springs. If you want the lever to be easier to push, replace the stiff standard springs - but check that the lever still returns to the centre.

To keep the casing together, you will need to find your own nuts and bolts rather than attenThe ones I found were much too long, so in
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