The left arm rest has come off and need a new one XL2000

Try ordering it from Serta.

Remove screws on old arm rest and replace with new one. Easy straight forward job.

The center arm rest is attached to the console by 2 small Hex cap screws. The arm rest and intermediate slide panel are attached to the same hinge assembly with rivets.
to replace the upper arm rest, 1st remove the assembly from the console by removing the 2 hex screws this will allow you to work outside of the vehicle on a work bench. 3 rivets hold the arm rest to the hinge. You will need to drill out the rivets using a 1/8" drill bit. and install the replacement arm rest using new 1/8" pop rivets.
see illustration

Go to: http://www.retrevo.com/support/Hitachi-XL-Desk-2TB-Storage-manual/id/23695bh538/t/2/

you can download the manual.

Remove the arms,and place them back on where they need to go,do not turn the wipers on,do this as they set now.If the wiper blades when turned on go off the left side of the windshield ,then you will have to remove everything again,and move the wipers down in the rest position,and align everything up to the rest position,with the wipers at rest,and the motor at rest.

try calling the manufacturer or seeing if they have a website that you can download the manual from some manufacturers do have manuals online

i believe you have to get it recovered, or try a salvage yard

Here is a link to the Manual of the XL200. And a link to the belts that need to be replaced periodically.

Oreck XL2000 Manual PDF 1153 KB

Oreck XL2000 Replacement Belts

the fuse is located under the back seat behind the driver. it is one of the large silver fuses (there is one for the left and one for the right) under the black cover with a picture of the battery on it and lift the black fuse cover off of that. check inside the top cover for the fuse locations.

I have not had a problem with the seat actually going on by itself. The location of the switch is horrible in that if you use the arm rest for what it was intended (resting your arm on it) you are likely to activate the heaters. I have to warn all of my "new" passengers of this wonder in engineering.

You have one bolt under the rubber mat in the front. And 2 bolts under the arm rest compartment. The plastic compartment in the arm rest will just pull out.