Crystal T-1-CPF Hydraulic Comparator Manuel d'utilisateur télécharger pdf (Page 18)

Support  16

Type T Pump Operation Manual

7 Examine the port for air bubbles which may adhere to the threads or parts.

Note: If air bubbles are present, repeat steps 2 through 4 until no more air bubbles appear.

8 Replace the check valve plug and tighten partially.

9 If replacing the low pressure/high volume check valve plug... Tighten the check valve plug.

The procedure for the low-pressure/high volume side is now complete.

10 If replacing the high pressure/low volume check valve plug... Use slight pressure on the hand lever to push system uid past the high

pressure/low volume check valve plug to ensure complete purging of the valve port.

Tighten the high pressure/low volume check valve plug.

12 Operate the pump handle until pumping becomes dicult.

13 Raise the pump handle to the top of its stoke.

14 Push in the valve rod selector to the high pressure/low volume position.

15 Resume pumping to verify the pump is operating properly.

Pump Does Not Hold Pressure

Problem: The pump operates but the pressure declines beyond normal thermodynamic eects.

Solution: One of two o-rings may be leaking.

As the pressure drops, observe the hand lever. If the hand lever rises, the discharge check valve is leaking and its o-ring should be replaced.

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Crystal T-1-CPF Hydraulic Comparator Manuel d'utilisateur Page 18