Just after the point where the first bypass vacuum line 110 branches from the processing line 84, a second bypass line 112, having {TAIL ~ air valve} 75 and hand valve 73, is connected to the processing line 84 on {HEAD ~ either side} of an air valve 74 
Just after the point where the first bypass vacuum line 110 branches from the processing line 84 , a second bypass line 112 , having { TAIL ~ air valve } 75 and hand valve 73 , is connected to the processing line 84 on { HEAD ~ either side } of an air valve 74
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH