Once again Atlas has presented me with a chinese puzzle. This one trumps the RS1s. There are no obvious acrews to remove the body from the frame. I assume there are tabs on the hoods and cab but before I try too much pressure to remove them I'd appreciate any tips on where to start.
TIA
Pete
Replies sorted oldest to newest
Pete,
Have you looked at the gp7 exploded parts diagram on the Atlas O website. It looks like there might be two screws at each end through the chassis and into the shell? Best I can offer at this time. I have a couple gp9's, but they are packed away.
Jim
Pete,
as I understand your text, you want to remove a RS1 Body from the Frame.
According to th Manual there are 2 Body screws öocated under the front and rear truck.
the text says: you Need a #0 Phillips head srewdriver that has a Long and very thin shaft thin enough to fit between drive wheels and side Frames of the truck.
Be patient, it is possible as I did so already in the past.
Regards
Albrecht
to be continued:
2 more screws that are located where the long hood meets the cab.
Albrecht
and for the GP7 have a look at both bolster plates for the body srews.
Albrecht
I have an Atlas GP9 and I believe they're made the same way as the GP7.
Remove the truck side frames first, then you can see where the screws are located and get to them easily. They're small in diameter.
There's also a set of tabs on the bottom of the shell (below the top hatch location).
Insert pieces of index card on both sides of the cab so when you pop out the handrails they won't scratch the paint. Remember to use the index cards when putting it back together too.
Pull the shell off slowly to make sure no wiring is pulled.
I've had my GP9 apart so many times I've lost count. It was a dummy unit when I bought it but have since installed PS2. I also had a piece of ballast get stuck in the gear train once and had to take it apart to get it out. Can't recall why I took it apart all the other times 
I really appreciate the input. I haven't worked on very many Atlas engines, being mostly a steam guy so wasn't aware of the link to the parts diagram. That will help a lot along with the other tips. Thanks again.
Pete
A few pictures. The cab should lift up but can be left intact if you are removing the shell from the frame. Be careful, as the frame comes off, of the wires to the optical sensor on the motor located in the short hood.
There should be (6) screws from the bottom into the shell. They are difficult to get to with a Philips driver. You may have to take the side frames off the trucks. to get to the body mount screws. With an EOB system, the wiring and control boards under the hood are a tight fit.
Access to this requires an OGR Forum Supporting Membership
