Search the skeleton several times until you find the keys.
Open the white car with the rusty key.
Search the car until you find an empty canister and a knife.
In the waiting room, a screwdriver lies on the windowsill.
Use the screwdriver on the bench in front of the waiting room to obtain a metal pipe.
Use the pipe on one of the cars to pry up the hood.
Use the screwdriver on the car with the opened hood and remove the battery.
Combine the battery, the knife, and the screwdriver — you will get a module.
Use the knife on the wooden workshop door to make a hole.
Use the metal pipe on the workshop door to break the lock.
Use the screwdriver on a drawer in the workshop and obtain acid.
Take the cables from the table.
Use the acid to open the locomotive door.
Cut the cables with the knife from the car with the open hood.
Use the module and the cables to repair the Power Box next to the locomotive’s engine.
After repairing the Power Box, you can work on the engine.
Go to the parking lot, use the rubber hose on a car, then use the empty canister to fill it with fuel.
Go to the locomotive’s engine and pour fuel from the canister into the engine — repeat this several times.
Check the engine several times — a key needed to start the locomotive may be nearby.
Go to the locomotive’s control panel and use the key.
To be continued :)