QUOTE (Thunder @ 9 May 2008, 11:33) <{POST_SNAPBACK}>.. especially my bachman jinty, will not travel over this section of track work at slow speed with out stalling, ..
Before working on the track, check that all the pick up collectors bear properly on the wheelbacks. It's a rare RTR loco that has the pick ups as well set as they can be. If so inclined take off the keeper plate. You will see that the centre axle is on a sprung plunger; a useful feature, except that the keeper plate holds the axle rigid. If you make two semi-circular rebates in the keeper plate sides under the axle position, and a broader rectangular cut out under the plunger the axle will be free to travel downwards. Take a half millimetre off the top surface of the plunger if there is no upward travel as supplied. That should mean 5 out of 6 wheels available for current collection at all times. Many Bachmann 'blue riband' steam models have a sprung driven axle, and without exception to date all my examples have been supplied with the axle constrained to a near fixed position.
Before working on the track, check that all the pick up collectors bear properly on the wheelbacks. It's a rare RTR loco that has the pick ups as well set as they can be. If so inclined take off the keeper plate. You will see that the centre axle is on a sprung plunger; a useful feature, except that the keeper plate holds the axle rigid. If you make two semi-circular rebates in the keeper plate sides under the axle position, and a broader rectangular cut out under the plunger the axle will be free to travel downwards. Take a half millimetre off the top surface of the plunger if there is no upward travel as supplied. That should mean 5 out of 6 wheels available for current collection at all times. Many Bachmann 'blue riband' steam models have a sprung driven axle, and without exception to date all my examples have been supplied with the axle constrained to a near fixed position.