I have an LGB 20271 "Heidi", fitted with Loksound, that has started operating strangely. It stopped on the track, although the sound kept going. When I moved it slightly thinking it might be dirty track it suddenly shot off a high speed for a few seconds before returning to speed setting on the handset. It has now done this on several occasions. Obviously when it stops the wheels are not turning. but as mentioned the 'chuffing' sound continues. I've stopped using it now in case I'm doing any serious damage to it. Any ideas as to what is causing its erratic behaviour please?
LGB 20271 with problems
- Thread starter LGB-Phil
- Start date
Wheels and track are ok, but no rollers I’m afraid.
PhilP
G Scale, 7/8th's, Electronics
You can put the Heidi on blocks, and clip power to the skates, perhaps?
Do you know if there is a chuff trigger, or does it go by motor voltage? - I think it might be the latter, and am wondering if an axle has jumped a tooth (or more) and the quartering is now out?
PhilP
Do you know if there is a chuff trigger, or does it go by motor voltage? - I think it might be the latter, and am wondering if an axle has jumped a tooth (or more) and the quartering is now out?
PhilP
Greg Elmassian
Guest
Sounds like it was in DC mode for a bit... then "heard" the DCC signal.
Could a mechanical lockup do this as PhilP has suggested? To me it would seem that once the quartering was out, it would stay out, and not sort of reset as stated in post #1.
Greg
Could a mechanical lockup do this as PhilP has suggested? To me it would seem that once the quartering was out, it would stay out, and not sort of reset as stated in post #1.
Greg
PhilP
G Scale, 7/8th's, Electronics
I have seen where the quartering was only slightly out, a 'jiggle' of the loco would free it again. - There is a lot of slack in LGB rods and linkages..
I would also clean the tyres and wheel-backs (where the bushes rub)..
Also continuity between tyres and skates, along each side of the loco.
PhilP
I would also clean the tyres and wheel-backs (where the bushes rub)..
Also continuity between tyres and skates, along each side of the loco.
PhilP
Greg Elmassian
Guest
So when it stops again, check each siderod and see if they are loose or tight. Loose, it's not the siderods, tight, something is binding, out of quarter, etc.
But why would pushing the loco put it back in quarter unless the gears are so worn that it skipped a tooth and pushing puts it back.
You can also take a picture and see if your drivers are out of sync.
Greg
But why would pushing the loco put it back in quarter unless the gears are so worn that it skipped a tooth and pushing puts it back.
You can also take a picture and see if your drivers are out of sync.
Greg
Sometimes it will run very well for quite a while, but then stop suddenly for no apparent reason. Not always on the same piece of track of course. The sound continues And then it flies off down the track almost as if it were trying to catch up the time it had stopped. It then slows down with the sound correct for the speed.
Cleaning the wheels and inner rims was the first thing I tried. Most of the time it runs really well. One thing I haven’t tried is running it without the sound turned on. Could that make a difference?
It would be good if it was that simple. Obviously I’m going to have to have it looked at. My capabilities, apart from very basic service, are low