Assembling brake on Sands SLC4000 wheel motor

[Bill Turtle]

The circlip which holds the belleville washer that applies the handbrake popped off the back of one of the wheel motors. This seems to happen once a year on the same wheel motor. Does anyone have advice on how to compress the spring (washer) enough to get the circlip back in its groove.
I am contemplating taking the motor assembly off the axle to put it in a press, but the six Allen bolts won’t budge at the moment. I assume they are assembled with high strength loctite and may need warming up? The machine is 20 years old, which doesn’t help with disassembly.

 

[cosmagedon]

It will be similar to doing a clutch pack in situ, you need to make up a strong back that uses something on the hub to hold it.

Have you changed the circlip? It's probably got round edges, I would definitely replace that and fingers crossed it doesn't happen again.

In the past I've made up a locking device that slots into the circlip holes to stop it compressing and popping out.

 

[Mr Happy]

If it's a Poclain motor you'll need a compression tool which can be made. There should be a service book available on the inter web.

 

[Bill Turtle]

Yes, it’s a Poclain MS18. I spent some time looking on the internet today but couldn’t find the relevant information.

 

[Mr Happy]

This info might help .

 

[Bill Turtle]

That is fantastic information thanks. I think I can make that and get it all back together. Will let you know how I get on.

 

[Bill Turtle]

All fixed thanks to the advice on here. Very easy with the right tool.