emergency hand pump opertions

[cessnadriver]

Herb. I fired up the front engine (with the hyd. pump) and cycled the landing gear lever from Down-neutral to full down, and nothing. When in the down position I do hear the hyd. pump under load. I checked the schematic for the landing gear system (hydraulic and electrical) and I see that the only way the solenoid gets electric power is with all three of the down lock micro switches are closed. I check and verified that the solenoid was getting electric power? Since the jacks and hyd. mule are located at a distant airport I was going to see if I can depressurize the the gear doors actuators and manually close them?? Thoughts?
Many thanks, BILLS