LOTR LE Shaker Motor

I have heard recently that someone blew up their CPU (and maybe I/O Driver board too) trying to add a (non kit) Shaker Motor to their LOTR LE.  A replacement CPU part number 520-5300-00 will run you $350-400 (US dollars).  Maybe less to fix, but it may not be an economic repair.


BTW - Do not be frightened of buying the right kit (Stern rev B) and doing the install.  The LOTR LE was designed to allow you to add this feature.  Ask questions if you are unsure of something!  The Shaker Motor is a great addition , maybe the best $170 I've spent so far.


So although I covered a few things about my Shaker Motor install here, I'm going to revisit the main points.   A link to the Scan of Shaker Rev B. Install Instructions

You will have to take the measurements from the instructions and create a template.  I think printing the template example scaled to double size would be very close.  e.g.  the 2” distance measures almost exactly 1” at actual size in the PDF.

Some IMPORTANT points to note:

Wiring Harness
The BRN/GRY wire 72” it talks about on a male connector.  This connects to a BLU/YEL female connector  coming from the head that can be found at the back of the cabinet on an LOTR LE.  It has a single BLU/YEL wire in the same place as the BRN/GRY wire in the 72” harness. 
  

The RED/WHT connector is short and will exactly match another RED/WHT connector found in the wire harness on the LOTR LE around the plumb-bob tilt area..

Motor installation
Tape the bottom of the cabinet with masking tape where you expect the holes will exit, and use a sharp 7/32” wood bit.  Let the drill do the work, don’t push hard. Clean up the bottom of cabinet to your liking and tape the 4 “T-nuts” into place, but don’t hammer them in.  Then as you screw down the motor tighter from the top, make sure the T-nuts are sinking in to the cab bottom and not spinning.

If I could do it again, I would move the template for the shaker mounting holes about another .5” (half inch) away from the left edge of the cabinet and towards the coin box.  Only .812” was indicated on the template. Hole position away from front of cab at 4.375” is perfect.  Doing that would let you take the cover off the shaker motor (for adjustments or oil, in future) without having to remove the Shaker Motor PCB above.