Crystal T-1-CPF Hydraulic Comparator - Manual (Page 19)

Support  17
Type T Pump Operation Manual
X To Replace the Discharge Check Valve O-ring
1 Remove the plug and O-Ring from the front of the pump body.
2 Replace the O-ring at the base of the plug.
3 Replace the plug.
Replacing the discharge check valve o-ring.
X To Replace the Vent Valve O-ring
1 Apply a wrench to the nut at the base of the pressure relief valve.
2 Remove the vent valve.
3 Replace the O-ring at the base of the valve.
4 Install the valve.
Replacing the vent valve o-ring.