Sluggish kline switches

[pennsyelectrics]

Hi,

I would appreciate any suggestions on getting my kline 045 switches to operate more reliably. In order to get them to move in one direction the ZW is set all the way up which will surely burn bulbs. I can't feel any binding but when the slide is moving away from the motor it needs a push. I am not sure what help that light spring gives.

Thanks in advance, Bob