Pressure Relief Procedure
8309909H
Pump to Fluid Manifold
1. Close shutoff valves GA and GB.
2. Place waste container under sampling valves HA
and HB.
3. Turn function knob to pressure relief/park .
4. Press . Indicator A comes on, and Pump A pres-
surizes.
TI4699a
HB
GB
HA
GA
5. Open sampling valve A slowly to bleed off pressure.
Indicator A will stay on for 5 sec after Pump A
reaches Park position, then go off.
6. Indicator B comes on and Pump B pressurizes.
7. Open sampling valve B slowly to bleed off pressure.
Indicator B will stay on for 5 sec after Pump B
reaches Park position, then go off.
If both pumps are not parked after 1 min, Alarm
26 will sound.
8. Close sampling valves A and B before restarting
system.
Pump air supply pressure must be sufficient to
cause pumps to stroke to bottom-most position
when function knob to is set to pressure relief/park
.