This is a collection of manuals for vintage Herman Nelson
BT400 heaters
It includes manuals For the Continental engines used on
the BT400-10.
BT400-10 Technical Manual Part 1 16.8 MB
BT400-10 Technical Manual Part 2 12.4 MB
BT400-40 BT400-40-1 Manual 2.25 MB
Continental Engine Manuals. Some are actually for David Bradley
Tractors but come close enough to use.