This puzzle starts as you make your way towards the Sawmill. Check out our Sawmill Puzzle Guide to find out how you move the log blocking your path so you can search new areas in the game.
When you reach the area you are at Camp A, here you will find a Red Tape and a steam donkey (steam-powered winch) with a guage and a turning wheel missing. Play the tape and stop it at the 0:45 second mark. If you now follow the track next to the big log that's blocking your way it will take you to a maintenance shed that has been partly destroyed. If you walk around to the back of the shed and look through a window you will see a small pressure gauge on the floor. Look at it and command your dog - Bullet, to fetch it for you.
Once Bullet has retrieved the pressure guage return to the track and continue to Camp B. At Camp B you need to follow the dirt path through the broken logs and branches until you reach the top where you will find a large, fallen log that you can use to walk across and reach the steam donkey. The turning wheel you require is still attached to one side of the steam donkey.
Return to Camp A and back to the first steam donkey and add the pressure gauge and the turning wheel you found. Make sure that the Red Tape for this area is stopped at approximately 00:13 so the fire lights. Then, using the turning wheel, make sure the pressure remains in the green until the log is moved.
Check out our Red Tapes Guide to find out everything you need to know about these videotapes that must be stopped at a specific point to alter reality.