Series II wipers

[onion]

I've tried today with holding the brushes to the armature, and I was getting some rotation but no more than half a turn.

I'm going to get some new brushes. Do you think I should grease the armature (and if so, with what). And what would you suggest as a suitable replacement for that holding spring? (I was thinking an elastic band, but that's liable to melt/snap)

[bmcecosse]

What 'holding spring' ??? With the rack disconnected - the armature should spin easily. No point fitting new brushes unless you can see that the old brushes are obviously worn out!

[onion]

The brushes are definitely worn down a long way, so they'll need changing soon enough anyway. By holding spring I mean the spring holding the brushes to the armature, managed to solve that bit though, my mum had a spring that fitted nicely.

What does it mean that is doesn't spin freely? Does it just need a good dose of 3-in-1/WD40, or is it more serious?

[bmcecosse]

Try some WD40 -can't do any harm. But it should spin easily.

[onion]

well, WD40 and a good clean freed it up nicely. However, when I put voltage through it, it locks up and I can't turn it at all. Ideas?

[bmcecosse]

'When you put voltage through it' - what do you mean? With the motor reassembled - it should spin away nicely when you apply volts to it - but you won't get your fingers to it........

[onion]

When I connect it up it doesn't spin by itself, it just sticks :/

[bmcecosse]

Windings may be burned out if it's been stopped with current running through.............

[onion]

That sounds expensive If the windings were burnt out, surely the armature would spin even with current?

[onion]

HAPPY TIMES! I tried the old hit it and hope, and job's a good'un. Just need to regrease the gears and connect it back up

Thank you so much for your help, I reckon I'd probably have ended up with a new motor if I didn't have some guidance.

[bmcecosse]

Errr - have you got to Mr Fleming's Left Hand Rule at skool yet??

[onion]

Yep, just still not quite used to applying theory to practice yet.

[onion]

Damn, it's stopped again. just getting really hot