Haven't had an "exploding" Accumate happen but it has been reported on the Web. I am fixing an Atlas N-Scale truck. The cover wouldn't stay on.
#00-90 Tap and Drill
1/16" Dia Drill
1/8" Dia Drill
#00-90 x 3/16"lg Flathead screws
The coupler cover has a lug with a hole.
Drill through the cover with the
#00-90 tap drill.
Put the cover back on the truck. Drill through the truck with the tap drill.
1/16" Dia drill through the cover hole.
Attach the cover with a #00-90 x 3/16 lg Flathead screw.
Didn't have one, that is a MicroTrains 1015 mounting screw.
Cut off the screw and file the screw flush.
Use the 1/8" dia drill to make a small countersink in the top of the cover.
Put the truck back together and mount on the car.