Lady_Ava_Hay Posted October 20, 2009 Share Posted October 20, 2009 I am not sure if Bachmann fitted loco's can be operated on normal DC, if so perhaps try a test. You may not get the sound but it should move? cheers Keit ESU decoders operate quite well on DC. You only get sound when you open the throttle and, usually, all functions are lost. TheOP's problem defintely sounds mechanical. The ESU decoder won't play engine sounds unless there is a motor connected. The fact that the motor hums means that power is getting through. My money is on a screw or other piece of detritus jammed in the works. Link to post Share on other sites More sharing options...
wollastonblue Posted October 20, 2009 Share Posted October 20, 2009 I'm a little stuck. Having just recently bought a Bachmann Class 37 with Sound, it was working fine, and sounds brilliant on my layout. I came to do some testing with the Kadees, and I got the sound working but it wouldn't move. The motor just hums quite loudly. I'm currently working on a Hornby Select, so I couldn't have messed with the CVs could I? Any advice would be brilliant, as it was the last one in the shop I don't want to swap it. Cheers in advance Link to post Share on other sites More sharing options...
Piemanlarger Posted October 20, 2009 Share Posted October 20, 2009 d I got the sound working but it wouldn't move. The motor just hums quite loudly. Have you taken the body off to have a look underneath? Link to post Share on other sites More sharing options...
wollastonblue Posted October 20, 2009 Share Posted October 20, 2009 No not yet. Just wondered if I had messed something up? Link to post Share on other sites More sharing options...
Bruce Depot Posted October 20, 2009 Share Posted October 20, 2009 try taking the body off and test again. then you can see if there is any friction etc I am not sure if Bachmann fitted loco's can be operated on normal DC, if so perhaps try a test. You may not get the sound but it should move? cheers Keit Link to post Share on other sites More sharing options...
wollastonblue Posted October 21, 2009 Share Posted October 21, 2009 I removed the body, and gave everything a good going over, to no avail. Will take back to the shop on Friday, see what they say. Thanks for all the help guys. Link to post Share on other sites More sharing options...
Piemanlarger Posted October 21, 2009 Share Posted October 21, 2009 did you try spinning the flywheels by hand / finger? Link to post Share on other sites More sharing options...
wollastonblue Posted October 21, 2009 Share Posted October 21, 2009 To be honest I wouldn't know what the flywheel would look like. I took the body off, and loosened the bogies, and gave everything a squirt of compressed air. Link to post Share on other sites More sharing options...
Piemanlarger Posted October 21, 2009 Share Posted October 21, 2009 i suspect something has become stuck in the mechs. The flywheels are either end of the can motor which is in the centre. From the centre of the flywheels two drive shafts connect to the bogies. It may well be one of these has dropped out. Should take no more than 5 mins to sort. Link to post Share on other sites More sharing options...
wollastonblue Posted October 21, 2009 Share Posted October 21, 2009 Thanks for that, I will have another attempt later on tonight. Is there a way of removing the block that covers the motor without damaging the seal on the decoder? Link to post Share on other sites More sharing options...
Piemanlarger Posted October 21, 2009 Share Posted October 21, 2009 will go and have a look at one of my 37, but from memory the pcb (the thing the chip is attached to + wiring etc) is held on by 2 screws. Undo these and you may be able to peak at the motor and brass flywkeels and see if something is lodged, or dislodged. Another and perhaps better alternative as i suspect its a drive shaft popped out is to undo the screws holding the bogies in place and let them drop away. You would need to do this to re-insert the drive shaft should this be the problem anyway. Link to post Share on other sites More sharing options...
wollastonblue Posted October 21, 2009 Share Posted October 21, 2009 Piemanlarger, Just to let you know I have fixed, and you were right. Many thanks again for all your help. Link to post Share on other sites More sharing options...
Piemanlarger Posted October 21, 2009 Share Posted October 21, 2009 thats ok, i seem to remember a batch of bachy 37 had the problem of drive shafts dropping out. Link to post Share on other sites More sharing options...
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