The Machine

Start
Talk to the surprised man north of the Catherby bank. Then, at the place when he was standing (he cannot be walked through), dig with your spade. If you forgot where he was standing, ask him to stand where he was standing again.

Underground
Once you dig with your spade, there will be a ladder leading underground. There you will find a machine in front of you. There is a monitor screen in the most eastern part of the machine. Click it.

The computer
Press the red button and it turns on. Now click "Folder". Then, click "blprrobham.ppt". A blueprint will be on the screen now. Then, search the crates near the screen. You will find a stack of paper. Put it into the "Paper Container". Then, press the blue button. You will get something called "Robot blueprints". Then, go the the special workbench west and make a robotic clockwork hamster with 3 steel bars.. You will need at least 60 Crafting. You may fail, but at level 75 Crafting you will not. Then, use the robotic clockwork hamster with the Wheel and a cutscene happens.

The robotic clockwork hamster (I'm gonna say hamster for short) will happily run on the wheel like a hamster wheel. All of a sudden, the monitor screen turns black. Then, The hamster jumps out of the wheel and attacks you. If you do not have 50 Defense, DO NOT EVEN PUT THE HAMSTER IN THE WHEEL OR THE ROBOT WILL KILL YOU IN ONE SHOT. Melee/Ranged attacks will not affect it, so use magic spells. You will need 50 Slayer to kill the robot.

Then, after you kill it, you will get a piece of black paper. It has something written on it.

0000000000000000000000x150{{ 101010

Study it, and you find that a virus has infected the machine.

The virus fixing
Get all the items from the tool rack "Wrench, Screwdriver, Brush". Then, use the screwdriver on the pipes to loosen the screws and get them. Then, use the wrench to screw open the pipes. Use the brush to clean the dusty pipes. It was the dust that caused an error, making a virus. Then, make a new hamster, and put it on the wheel. This time, it will not get a virus. Now, use the wrench back with the pipes and screw the screws back. Now, if you use weapons or armour on the machine, it will give a +1 bonus to all stats.

Congratulations! Quest complete!

Rewards

 * Ability to use the machine