Documents page
Generator manuals
ST manual. In .pdf format
YHG manual In .pdf format
How to set RPM of a generator
How to set RPM of a generator. In .pdf format
STC 3 phase 12-wire wiring diagram. In .pdf format
Wiring diagram for ST generator. Single phase 120/240
AVR wiring pictures
AVR110 Silver
AVR115 Black
AVR115-Black Wiring to remove the harmonic excitation winding
AVR230 Silver, Gray end
AVR230 Silver Bottom, single or 3-phase
Diesel Engine controller
Help in determing bell housing size
Document to help in determining SAE size for bellhousing and flywheel. In .pdf format
You will need to take the gen head off the engine and do some measuring. Click on the link above for a document to aid in determining the size of bell housing and and fly wheel you have. The important dimensions are:
1) Bell housing inside diameter: XD Dimension
2) Bolt hole center to center straight across the bell housing diameter: XB dimensions
3) Number of bolt holes in the bell housing and match with the diagram.
4) The inside diameter of the machined portion of the flywheel where the flex plate from gen head bolted to.
5) The number of bolt holes where the flex plate bolts to the flywheel.
6) The bolt hole center to center across the diameter of the flywheel: XF dimension
7) Put a straight edge, USE A LEVEL so as to make sure it is straight, and measure the XG dimension. ( from the inside of the straight edge to the place on flywheel that flex plate bolts to.)
If after reading this document and still are having difficulties, have the above information before emailing us.
If you have any quetions, email us or give us a call.

