BMC 25 - Z Axis creep when servos off.

[gthlm]

Max 2 BMC 25, circa 1990. When you hit the e-stop to shut down the servos the Z axis sometimes creeps downwards. It creeps very slowly and sometimes comes to a stop by itself, others not. With a bit of effort you can push against it to bring it to a standstill.

It appears the previous owner added a piece of 2" plate to the counterweight, but this could be original, I am not sure. Either way it still doesn't hold the head up!

My question is, is there a brake on the Z axis on this machine that might be not working?

Thanks in advance, Gregor

[bloke]

No brake on there, Gregor. There should be two blocks screwed together at 90 degrees on the counterbalance. It may just need the gibs nipping up a touch.

[gthlm]

Yeah that's how the counterweight is. It's my dad's machine so I'll get a look at it next time I visit, probably christmas. Thanks Cliff.

Gregor

[hurconotes]

No brake on that machine. They added weight to the counterbalance on some older machines.