HP 5973 Hardware Manual page 53

Vent valve knob
: $ 5 1 , 1 * $W ƒ& DQDO\]HU SDUWV DUH VWLOO KRW HQRXJK WR EXUQ EDUH VNLQ 'R QRW KDQGOH KRW SDUWV
& $ 8 7 , 2 1
Always wear clean gloves while handling any parts that go inside the vacuum manifold.
Vent valve knob
YES NO
Operating the MSD
2
To vent the MSD
53