One further word about the vacuum pump.
You will notice that the red wire is common to both the motor and the internals of the box. Inside the box are two electric valves. These valves must be energized to seal the vacuum chamber. This is a safety feature to prevent runaway. I don't know whether it matters what polarity you use. Red could be positive or negative. But the other three wires must be the opposite. The pump motor is either a DC permanent magnet type with a piston or diaphragm, and will work in either direction. The electric valves may prefer one polarity or the other. It is common for electronic controls to turn things on by controlling the ground connection. So the enlightened betting man will connect the red to positive and ground the others.
Proceed at your own risk.
One of those "Y" type vacuum connectors on the output of the pump would allow for pump connection, vacuum gauge connection and an output line to the vacuum system under service.
Good luck and Good day.
Bogy.
| Reply via web post | Reply to sender | Reply to group | Start a New Topic | Messages in this topic (2) |
No comments:
Post a Comment