The included fax contains LNC2 info from Lancair on "new" pump wiring.  This was located in the LML archives under Hydraulic landing gear: New style Pump Wiring from the factory.  The claim is that at some time the pumps became "newer" where internal checks for load and temperature over the limit could cause the pump to stop and that the black wire should go to ground.

 

See the archives:

 

 

BTW, WED xx-23-98  Occurred in Sept and Dec.

 

Even if you are confused,

(1) make sure there can be no power to the INTERMITTENT relays when the motor power circuit breaker is pulled,

(2) guarantee that the "I" terminals of the relays are isolated from each other and

(3) protect the wire that goes to the transition light. 

How these are to be accomplished is an exercise for the reader.  Any other pump wiring innovations should be determined by your ability to seek and find information appropriate to your installation in your own custom-built experimental aircraft.

 

I withdraw my previous diagram(s) except for the first where the black wire is an unmentionable.

 

From the LML Archives: