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I have a bosch impact drillgsb20-2 re

The problem is it only rotates when you rattle it about or slightly touch the reverse or forwrd mode switch,its like something is just not biting,im a joiner not an electrician any ideas

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The wires that go to the switches are usually attached using a spade lug that can get loose over time. Take the drill apart carefully, gently tug on the wires one at a time, and pinch the "female" part of any that seem loose to you.


Posted on Feb 23, 2009

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If the generator has been sitting for a long time or was shut off with the load connected it has likely lost the residual magnetism that is required to excite the winding. This is a common problem. Always disconnect the load from the generator before stopping the engine!

The generator needs to be flashed. There are several was to achieve this, but safest would be to use an electric drill.
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If you want to do this job yourself, it depends entirely on your ability. If you're happy pulling apart and assembling dog gears & layshafts then go for it. Take a look at this explanation of gears on youtube to see what you are letting yourself in for.

The likelihood is that something to do with the reverse shaft (the transfer of motion form the gear stick) , or reverse idler gear (usually teeth are stripped) is causing the problem. The parts are generally cheap but the labour to fit them isn't.

There is a little less labour costs in fitting a new gearbox but higher cost in the box itself. So it comes down to economics, do it yourself is cheapest.

Rebuilding the gearbox? Is the vehicle worth it? Is it a vehicle that you can't get a new transmission for? (Depending on the age and worth of the vehicle personally I'd buy a rebuilt transmission).

Buy a new box? Is the car so old that it may need a compete gearbox renewal? ... and if you invested in the cost of a new fitted box, would it be worth it?

I can't answer these questions for you, it's one for you and your bank manager to discuss.

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Hope this helps You
please rate me

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