Wiring diagram
HP2050 and HP2051 (without flash light)
For Great Britain, low voltage
Choke coil
Set choke coil in the position illustrated.
Fix field lead wire (black) for connecting to switch, with lead holder.
Brush holder
Fix the following lead wires with this lead holder.
* Switch lead wire (red) for connecting to brush holder
* Lead wire (black) connecting field terminals A and B
Switch
Fix with lead holder the lead wires passed through this portion
Noise suppressor 
P 16 /17
Fix choke coil lead wire (orange) with lead holders.
Fix grounding lead wire (transparent) for connecting to field core, with lead holder.
Brush holder
Fix Lead wire (black) connecting field terminals A and B, with lead holder.
Fix the following lead wires with this lead holder.
*Switch lead wire (blue) for connecting to brush holder
*Field lead wire (white)
for connecting to switch
Fix with lead holder the lead wires passed through this portion