You should have an off set rod that is a hand crank, one end attachs to the face of the motor that has a spring clip though the end of the shaft and you should notice that on one end of the hand crank there is a round barrel with two slot just opposit from each other, that slides over the shaft and the slots lock over the spring clip so you can turn the shaft and then begain turning I believe clock wise to slide the slide out in.
Look under the slide-out for something similar to this.
This photo shows the slide motor with the hand crank inserted over the motor pin.
If it's made different than this, look for an access hole on the opposite side of the trailer, in-line with the slide-out. This is where you'd insert the hand crank to move the room back in.
Although you refer to the electric motor, you haven't mentioned whether the slide system is electric or hydraulic oilburner.... if hydraulic, the above advice, though accurate for electric systems, won't work. for hydraulic, there is a hex socket on the end of the hydraulic pump motor to attch a drill (with flex extension) to run the hydrualics. In here somewhere you shoud see a link to the main manufacturer of FR slides, Lippert Systems or LSI
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Salem 401-2b; 31" Sony Trinitron and two channels on the antenna.
Smokin' hot wife... 2 boys, 25 and 10.
83 sweet sweet days camped in 2008 - not easy in my neck of the woods!