Bachmann trolley: how much axle play is too much?

[KylePearce]

I have a 4-wheel bachmann closed trolley, and as-new the gearboxes had a lot of play. Not radially, side to side. The gears aren’t in danger of losing mesh as they are wide. My question is, should I shim the axle? I understand play is required on a 6 wheel machine to get around corners, but how about with 4?

 

[Rhinochugger]

I have a 4-wheel bachmann closed trolley, and as-new the gearboxes had a lot of play. Not radially, side to side. The gears aren’t in danger of losing mesh as they are wide. My question is, should I shim the axle? I understand play is required on a 6 wheel machine to get around corners, but how about with 4?

Provided the gears remain meshed, I'd be tempted to leave it.

For reasons of mechanics that escape me, I have found that quite a few types of rolling stock benefit from sideways axle movement

 

[dunnyrail]

Emm ecuav hivvoph suapf S1, og pu qmez xjiimt nusi molimz vu copf up tjesq daswit. Nz MHC 20761 jet esuapf 5-6nn qmez up iedj eymi.

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