Those K-Line plymouth switchers are on sale.Super low price.I’m thinking of getting one,but is it really a hassel to get the scale couplers off & fitted with the standard O-gauge couplers??? Thanks Easter
I think they just screw on
Well heck, even I know how to screw!
there are two small screws holding the coupler, youmay need to use a screwdrive form a eyeglass kit.
Yep I can do that.I was afraid it might be some complicated process. Thank you. Easter
K-Line provides an extra coupler for conversion to Lionel size couplers, however you may need some small screwdrivers to do the job with. I replaced the coupler on one of the hopper cars and put a Lionel bobber caboose at the end of the train.
Another possibility is to go with an Atlas Brand coupler or truck conversion kit for O gauge trains, you will have more parts than what you need leftover.
Lee F.
Be careful and take your time.Patience is needed.
lmbo, your too much jim 
I bought it last friday. The conversion was easy.Did it all myself,but your right,you need a keen eyesight & nimble fingers. Easter
There are a few tricks to working on small stuff; one is to have a pair of needle nose pliers handy-use the pliers to hold a screw until you start it, the other is you may have to turn the piece you are working on upside down. There is a tool in automotive work called a screw starter but I think(don’t quote me) it may be for flat tip screws only, also the size of screws we are talking about may be too small for this tool. One other type of tool that may work is a magnetic screw driver.
Lee F.