1/4" HYDRAULIC 

 SWIVEL FITTING 



OUTLET PRESSURE 

 RELIEF (65 - 70 psi 



INLET PRESSURE 

 RELIEF (100 psi 



INLET PROBE CAP — 



* PROBE CAP BOLT 

 RETAINING PIN, 

 (NEAR INLET CONNECTIONS) 



100 psi GAGE 

 OUTLET PROBE CAP 



LEGRIS TUBE FITTINGS 



RETAINING PIN 



— INTERMEDIATE PROBE CAP 



Figure 5. --Probe cap fittings. 



C0 2 Supply System 



The C0 2 tanks are held in tilting frames so the outlet is lower than the rest of 

 the tank, thus eliminating the need for siphons. The tanks are connected with T- 

 fittings and 12-inch (30.5 cm) lengths of 1/4-inch (6.3 mm) hydraulic hose. A gage 

 measuring at least 1,000 psia (6.89 MPa) is mounted between the tanks and the main 

 supply hose. The main supply hose is SAE 100R3 3/8-inch I.D. hydraulic hose. A 

 shut-off valve and the measuring gage are mounted on the end of the hose. The hose 

 and valve connect to a manifold which distributes the C0 2 through four wire screen 

 filters to an 18-inch (45 cm) SAE 100R3 hydraulic hose connected to the probe 

 throttle valves. All hoses and fittings are exposed to full tank pressure during 

 operation. The gage readings determine if the C0 2 is flowing normally. 



Lifting Apparatus 



Figure 6 describes the ice anchors used to lift the sample. Figure 7 shows the 

 aluminum tripod lifting frame extracting the sample. The telescoping legs are 

 adjustable to fit variation in streambed contour (fig. 7 and 8). The frame lifting 

 capacity is 5,000 lb (2 268 kg). 



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