I need help with activating this machine in Power Room (Penumbra: Overture)

[DARIUSH2001]

Firstly, you must throw a big box into a hole. Get down there using the ladder and pick that battery. You will put it in...it's place. It's on that machine with many valves. Then, you must replace a broken fuse. You must search for it outside of the Power Room. Search other rooms... You'll find it. After replacing it, read carefully the instructions of starting the machine and turn the valves in the correct order.