Help! My jigsaw's died!

[Phil Pascoe]

It's a Bosch GST 85 PBE. I have voltage at the switch, but when I depress the switch and test the other "live" terminal I have nothing. I'd have thought there should be a reading there?

 

[bourbon]

I know you used to be able to buy switches as an aftermarket spare but I'm not sure now

 

[Phil Pascoe]

I can get the switch, but it's £30 so I want to be as sure as possible that it is the switch at fault. One thing that's leading me to believe it's more is that it died instantly and switches often develop intermittent faults.

 

[Lons]

Can you temporarily bypass the switch Phil, have to be careful of course. That will tell you whether switch or motor.

Bob

 

[Phil Pascoe]

Not the switch, not the brushes. I think as it is twenty years old and has cut tens upon tens of tons of timber if is probably time to say goodbye.

 

[Phil Pascoe]

I can't justify the money to buy anything like as good as that one, as I no longer need it for work. I've never known any power tool that's done the work that one did. I feel an 18v DeWalt looming - £105 bare - I haven't long bought an 18v 2ah drill. I can always buy a larger pattern battery if needed.

 

[sunnybob]

Is it variable speed? the speed controllers often die first. try moving the dial back and fore several times.

 

[Phil Pascoe]

I bypassed it - nothing.

 

[Racers]

Usually a break in the mains lead with power tools, try pulling the wires that go into the mains lead with the cable clamp released, I bet one will pull out.

Peter

 

[Lons]

Usually a break in the mains lead with power tools, try pulling the wires that go into the mains lead with the cable clamp released, I bet one will pull out.

Peter

He has power at the switch Pete so it's getting through though, on second thoughts there could be a break in the neutral. More thoughts.... he isn't getting power on the out side (load) of the switch.

 

[bourbon]

any signs of burning/melting on the motor? keep at it. At least it will be fun to try out all the suggestions on here. And you may just resurrect your old friend

 

[Myfordman]

Could be one of field windings open circuit. These should be a service spare.

 

[Phil Pascoe]

Usually a break in the mains lead with power tools, try pulling the wires that go into the mains lead with the cable clamp released, I bet one will pull out.

Peter

The first thing I did was cut a few inches off the flex and rewire it (at both ends) - I've looked at too many vacuums over the years, and that was always first port of call.
I've bypassed the switch, and still nothing. In view of its age and wear I'm loathe to have it repaired as by the time I pay the labour and any parts (which are expensive) - the switch is £30, and I'm quickly getting out of my depth.

I'm also wary of doing as often is done with old gear - creating a new weakest link, paying a lot of money only to see it go wrong again shortly afterwards.

 

[Phil Pascoe]

Looks like this one -
https://www.amazon.co.uk/dp/B006WXBD1O/ ... 515&sr=8-1
Working from wheelchair it could be a plus not to have a lead to get tangled in, and I've already batteries and charger.

 

[MrDavidRoberts]

Perhaps spend the 30quid and buy an identical used one from ebay for that money? I just looked up they go for about 30-35!
If in future anything dies... you got a donor!

 

[Phil Pascoe]

But I might buy had that had been abused like my last one ...