How do I remove the set of drive wheels and Worn Wheel of Postwar Locomotive 736?

[gilberto]

Hello

I am here in Brazil and I also love my trains Lionel, MTH and Williams ...

I recently started to restore a Berk 736 Postwar locomotive, that with very bad original wheels ...

I already imported US, new wheels for replacement and has started to dismantle, remove the old wheels ...

However I found a "problem" and I was anxious to continue the dismantling of the wheels ...

My doubt is:

How do I Remove the Worm Wheel (726-125) of locomotia?

If I remove one of the wheels, usually the Worn Wheel, will leave alone?

I am concerned to take this next step without first taking all duvudas ...

Thanks for your attention.

  Big hug

Gilbero.P. Luizello

[TrainLarry]

The worm wheel is held in place with swedges on the axle. To remove the worm wheel, remove the drive wheels using a wheel puller. Using a hammer on a long, flat-bottomed punch slightly smaller than the axle bushing, drive the axle out of the chassis with the punch. You need to devise a support for the locomotive while driving out the axle.

Installation is the reverse. Drop the worm wheel in the chassis, and using the punch, drive the axle through the worm wheel. It may take some trial and error to get the worm wheel centered on the axle so the drive wheels can be pressed on properly.

Larry

[ADCX Rob]

I would use a press instead of a hammer & punch(es). But that's just the easy part of the repair.

[ADCX Rob]

The hard part is getting the quartering accurate, which usually requires quartering cups and a press from the Lionel special tools set. This is necessary on this model as power is actually tranmitted to the forward three axle sets from the rear via the side rods. Start reading up on quartering issues here.