009 Society Members Forum

Modelling => Locomotives => Topic started by: Allscales on February 18, 2014, 21:29

Title: Zillertalbahn Uh 5 Gerlos
Post by: Allscales on February 18, 2014, 21:29
Hi All,

I have an 08 model of Gerlos, and it's never really run very well, however back then I decided to have it chipped with a Lenz Silver Mini anyway. Even after that it still didn't run very well so I've largely ignored it except to take it out once in a while to give it a bit of run around the test track.

Often it needs a little nudge as it seems to lose power quite readily. Then I dropped it on the board and the rear axle bent so again I put it away.... Last year (after quite a lot of to-ing and fro-ing) I managed to obtain some new wheels (don't ask how). At least they only cost about
Title: Re: Zillertalbahn Uh 5 Gerlos
Post by: Retiarius on February 19, 2014, 10:57
If a loco runs badly under DC then installing DCC will not improve things!   Have you checked the motor brushes for wear and carbon contamination of the commutator?  It could also be that motor magnets may have weakened with time, in which case remotoring is probably the only option. Is the chassis block all square and without distortion? The older Liliput chassis castings can degrade and warp with time causing binding and rough running.

Let us know if you find a solution.
Title: Re: Zillertalbahn Uh 5 Gerlos
Post by: Allscales on February 19, 2014, 19:49
Hiya,

It seems to want to go but just not really getting there. It was new in 2008 and not running very well then either... However I have a number of old Liliput 2095 class locos (one now with sound, superb!) and they all run much better when chipped!

However I'll see about opening it up and taking a look at the motor. I don't know how as yet, but I'm a dismantling expert, I just sometimes need some help to get it back together again!


Title: Re: Zillertalbahn Uh 5 Gerlos
Post by: B.Meldon on February 20, 2014, 10:22
I know it is a bit late now but if the loco did not run well when new perhaps you should have returned it to the supplier!
No manufacturing process is faultless and occasionally something will not be made quite correctly causing the loco not to run poorly. I know Liliput/Bachmann do get locos returned to them as faulty and they then often sell them at cut down prices without warrantee at the larger exhibitions. If you get one of these it may have a minor fault, it may have a major problem, like a distorted chassis or sticky motor or it may work just fine!

I think a 2008 loco should have the MK4 chassis that looks like this one from a U class loco:

(https://forum.009society.com/proxy.php?request=http%3A%2F%2Fi663.photobucket.com%2Falbums%2Fuu358%2FM-e-l-l-o-w%2FLiliput%25200-6-2%2F0-6-2Flywheelchassis.jpg&hash=377406bc6cce09df5d1d1f5b10ca29755ac713ec)
But it may have a Mk5 with the can motor and separate cast weight?

I have not had any faults with the ones I have but from the way you describe the fault I would test the motor out of the chassis on normal 12v dc controller to make sure it starts with minimal power. (Some faulty motors take more power to start moving.) I would also make sure the motor worm gear is correctly meshing with the first drive gear. Also have a look to see the chassis and the axel bearings are all correctly aligned and not distorted. The centre wheels should be slightly higher than the outer ones so that the chassis does not rock on the centre wheels.

Finally I think you will find that a batch of Liliput Uh5
Title: Re: Zillertalbahn Uh 5 Gerlos
Post by: Allscales on April 22, 2014, 20:49
Hi Brian,

Thanks for your advice I'll take a look this weekend, I have been so busy recently modelling's had to take a back seat!

I didn't realise they had produced another batch, it was on the web-site for ages and then just vanished! Just like the first batch of D11's I might add!

Thanks,

Friso