Crystal T-1-CPF Hydraulic Comparator - Manual (Page 13)

Operation and Maintenance  11
Type T Pump Operation Manual
12 Slowly pump two and one-half strokes, positioning the pump lever at approximately 45 degrees, halfway through its stroke.
13 Allow system fluid to flow out of the high pressure check valve, flushing entrapped air.
14 Examine the port for air bubbles which may adhere to the threads or parts.
Note: If air bubbles are present, repeat steps 12 through 14 until no more air bubbles appear.
15 Replace the high pressure/low volume check valve plug and tighten partially.
16 Use slight pressure on the hand lever to push system fluid past the high pressure/low volume check valve plug to ensure complete purging of the
valve port.
17 Tighten the high pressure/low volume check valve plug.
18 Operate the pump handle until pumping becomes difficult.
19 Raise the pump handle.
20 Push in the valve rod selector to the high pressure/low volume position.
21 Resume pumping to verify the pump is operating properly.
Note: If the high pressure/low volume setting does not operate properly, there is more air trapped in the high pressure/low volume check valve. The priming
procedure must be repeated.