Maintenance
Startup 250:Users:Danny:Desktop:Operation manuals:line pumps:maverick
(P305):pHseriesMAINTENANCE.fm
53
Operation Manual - SP 305
5. On the charge valve assembly, locate the T-handle
of the gas chuck (Figure 39). Rotate it
counterclockwise (outward) completely before
attaching the swivel nut to the accumulator gas
valve stem.
6. On the charge valve assembly, close the bleed
valve (Figure 40), and disconnect the hose from the
gas valve stem. This step closes the charge valve
stem to prevent the gas pressure from escaping out
of the hose and ensures that the initial pressure
reading is accurate.
Figure 39
Charge valve assembly
200
150
100
500
1000
1500
2000
2500
50
0
bar
PSI
Gas chuck
Bleed valve
Pressure
gauge
T-handle
Swivel nut
Gas
valve stem
Valve body
accum charge assy.eps
200
150
100
500
1000
1500
2000
2500
50
0
bar
PSI
Bleed valve
Close valve
Remove hose
charge assy/bleed/hose.eps
Figure 40
Close bleed valve and
disconnect hoses
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