jelliman
Hello to all on the forum from a burning Australia. Recent cooling weather and some rain will help us over this crisis. This is my first post but I do look at the weekly summary always.

I have just taken my collection  (4) of these out of storage for 10 years to give them a run on the rollers. Two of them are making a very serious grinding noise in one direction only. I've had a look inside but would like some guidance as to what I am looking for. I can't find any service sheets online. Any ideas??

Thanks

Jelliman
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jelliman
The collection is Heljan class 33. The title of my post didn't appear
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Bunkerbarge
Firstly welcome and please accept my heartfelt sympathies for everything that Australia is currently going through.  The stories and pictures we are currently seeing in our news stories, particularly as regards the animals, is heartbreaking.

Anyway locomotives that have been in storage for ten years, particularly in warmer climates, may well suffer from the volatile fractions of the lubricating oils evaporating, leaving behind the heavier waxy fractions.  You could try the short cut of simply oiling everything up again but you will not have really dealt with the issue.  What you should do is clean off all traces of the original lubrication with a solvent, then re-oil everything with fresh oil.

The serious grinding noise is overloading of the gears due to the high resistance in the bearings as a result of the thick and sticky oil.  Once you have cleaned and re-oiled the locomotives everything will be quiet again.

The sort of things you will be looking for are any areas where lubrication has been applied such as axle bearings and gearing.  The motor bearings might have also been oiled if they are visible and accessible.

The smallest amount of the lightest oil applied with the end of a cocktail stick or a fine paintbrush are all that you will need.
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jelliman
Thanks so much for that.

Next step is to work out how to get into the inner workings and have a good clean out. Good time to replace my Labelle 108.

I will be away for a few weeks so this will be number one job when I return. Cheers
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lnwr51
Hi Jellman , Heljan gearboxes are simple to get into . Turn the loco upside down and rest it in your cradle if you have one or some method so it wont roll over on its side . At the bottom of each bogie between the wheels is a keeper plate that is held on with four #1 ph screws , remove the screws and the plate can be lifted off . If this is the first time its been off it may need a little bit of persuasion like a tap with a small screwdriver thats hit with a small hammer on the joint between the plate and the gearbox housing . 
When the keeper plate is removed it will expose your gear train and the pinion drive from the motor . When you put the keeper plate back on make sure that the end with the circular machining goes at the end over the pinion .
There has been problems with Heljan gears splitting and it is always one of the gears that feeds directly off the pinion as these take the most load . You can power up the loco whilst you have the plate off but dont run it fast , this will enable you to clean any cruddy grease off the gears and will allow you to see if the gears are jamming because of a split . If they are split you will be able to run in one direction to a point and then reverse back to the same point where they will jam again .
Good luck and post on hear if you get stuck , I'm not sure if you can contact me directly offline through this forum but feel free if you can . 
Cheers Paul , from Melbourne .

  
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Bunkerbarge
Paul,  There is a private messaging system if you need to use it.  Simply click on the little speech bubble icon next to the bell and your avatar picture in the top right hand corner of the window.  You can compose and send a message from there.
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lnwr51
Bunkerbarge wrote:
Paul,  There is a private messaging system if you need to use it.  Simply click on the little speech bubble icon next to the bell and your avatar picture in the top right hand corner of the window.  You can compose and send a message from there.

Yes , thanks , i found it after i posted .
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jelliman
Thanks Paul

Thanks to you as well for such detail in your reply. When I return I will be straight in!
I'm in Melbourne as well - in the South East under the mountains.
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