need help again,933 not charging batts.

mate not sure if this will work
not to flash at this computer stuff but if piccy comes up ok should be for 933 traxcervator with a generator maybe ??? I just punched it into google and there it was should have power between A and GRD on generator and should also have power F for the field it will switch on and off to control voltage if F has no power short F to A and see if genny starts to charge might need to give it some revs but it wont regulate if genny starts to charge gennys fine regulator is crook if there is no power at A check for power at GEN on the regulator if no power there check BAT at regulator and so on till you find were the power is not getting to good luck and Im sure some one much smarter than me can put you right if I have buggered it up seeya
Paul

thanks paul for that infor.you sent me for my 933 charging prob,

Easiest check on a generator is to remove all connections and drive and see if it will motor. Use jumper cables Neg to field, Pos to armature.
If it runs as a motor the generator is ok.

[quote="Old Magnet"]Easiest check on a generator is to remove all connections and drive and see if it will motor. Use jumper cables Neg to field, Pos to armature.
If it runs as a motor the generator is ok.[/quote]

I didn't know that. It's stuff like this that needs to go into our Technical Library too...one day when it gets built.

If you really want to get exotic while doing the motor test, break out the volmeter. Connect the red meter lead to the Pos jumper, remove the Neg jumper from the field terminal and immediately clip to the Neg (black) meter lead. The generator should speed up and the voltage reading steadily rise beyond its voltage rating. If either fails to happen the armature is starting to fail.

Not holding my breath for any meaninful technical library to evolve on this BB.

I have never heard of that test either. I have a few to test. Thanks for sharing.

The motoring test of a generator requires removal of the belt if belt driven or dismounting a gear drive generator so it can rotate without any load.

Then, Old Magnet, do you mean to remove the negative jumper cable clamp from the Field terminal and instead clamp it on the frame of the generator somewhere? This should be done quickly before the generator ("motor") slows down.

I understand that disconnecting it from the field terminal will kill the shunt field and it's counter EMF, so the "motor" will speed up, perhaps to a dangerous rpm if all is well with it. Amperage will also rise rapidly, so this is a test of only a very short duration!

The voltage measurement you mention........... should that be measured between Armature terminal (+) and frame (-)?

If the "motor" speeds up steadily when you move the negative cable to the frame, that means the voltage is rising even though we don't know exactly how much.



Note, the process of trouble shooting a generator by shorting it's field (or supplying Bat + to it's field) or motoring it is going to depend on how it's field is connected internally. Some generators' field is grounded to the frame of the generator and supplied Bat + through the F terminal to increase voltage, while others' field is connected to Armature terminal (+) and the F terminal is grounded through the regulator to increase voltage.