Plug problem.

[shumungus]

Does anyone know the super secret way of opening this plug? And yes I have tried all the usual ways. It's off a set of Truetest load bars.

 

[MrNoo]

Same as a Vaderstad drill box controller, afraid one of the few things I've not had apart, would have thought the main body would unscrew leaving the connectors and the male section of the plug but guess you've tried that already.

 

[Zebbedee]

Looks like an amphenol plug I also have struggled with one but I just cannot remember the outcome google amphenol it may show something

 

[Wombat]

The outer should unscrew but they might have potted it by filling it full of silicon or glue

 

[traineefarmer]

Anchor it into its socket and try to gently rotate the body, but as @Wombat stated, it could be sealed with resin, so go easy.

 

[shumungus]

I have come to the conclusion that it must be glued or potted. Am ordering new ones when they arrive I will perform a grinder-ectomy.

 

[335d]

As trainee farmer has suggested, normally you would screw the plug to the connector, then unscrew the outer plastic part. But they are usually 3 part with a rubber compression gland to seal the cable.
In your first picture, if you poke down in the cable end with a scribed, you should be able to feel if it’s rubber or an epoxy potting compound.
There are special tools available, but they are usually expensive, so normally you just use the other half of the connector to hold the end while you unscrew the cover. You will never be able to hold it with pointy nosed pliers, circlip pliers etc. Shouldn’t be tight, will just be nipped tight. onto a rubber seal

Tool would be something like this.