LGB 25910 KJF narrow gauge loco, drive problem

[Jonben]

Anyone know which screws to remove to get to the motor/drive.
Problem is the power pick up/ wheels have power but drive is intermittent.

 

[Neil Robinson]

Anyone know which screws to remove to get to the motor/drive.
Problem is the power pick up/ wheels have power but drive is intermittent.

This diagram may hep a little.
http://www.maerklin.de/service/produktservice/listengenerator.php?brand=7&artikelnummer=25910
Remove the screws numbered 7 and 18 that go through the baseplate (not all are shown in the picture) and then remove the baseplate.

I fixed a similar problem with a steam outline version. The motor tabs needed tweaking slightly to make good contact with their supply wires.

 

[dunnyrail]

Anyone know which screws to remove to get to the motor/drive.
Problem is the power pick up/ wheels have power but drive is intermittent.

There has just recently been a pretty big thread on a similar line.
JonD

 

[Jonben]

There has just recently been a pretty big thread on a similar line.
JonD

Had already read, thanks.

 

[PhilP]

Clean the 'tyres' and back of the wheels where the carbon brushes rub..

 

[Jonben]

Wheel drive gear

• Jonben
• 24 Mar 2017

Power pick up

• Jonben
• 24 Mar 2017

Drive

• Jonben
• 24 Mar 2017

Motor

• Jonben
• 24 Mar 2017

 

[PhilP]

It looks very much like the gear, driven from the worm, is worn??
It should NOT be concave.

 

[Zerogee]

Ooh, yes, that gear does look a little bit worse for wear.... has the loco had a lot of running? The gear should last a lot better than that!
Motor worm gear perhaps meshing too tightly, and chewing into the plastic gear wheel...?

Jon.

 

[Jonben]

When I tested motor disengaged from gears powered via the pickups it was very reluctant to spin.
Any idea what the circuit board does?

 

[Deleted member 1986]

Any idea what the circuit board does?