Filling; Priming The System; Vacuum Priming; Pre-Filling - GE Druck PV 411A Manuel D'utilisation

Filling

Unscrew the reservoir cover lock nut (1) and remove the reservoir cover (2).
Using clean, recommended fluid fill the reservoir to approximately 2/3 full.
Refit the reservoir cover and re-tighten the reservoir cover lock nut (1).
Connect the required pipes and equipment to the outlet ports.

Priming the system

There are two methods: vacuum priming to extract the air or pre-filling the
system.
1. If air remains in the system, full pressure cannot be achieved as the air
in the fluid compresses. Air must be removed from the system fluid.
2. Both priming methods require the pump to be held in the vertical
position to keep the reservoir bleed hole (4) in fluid. Do not allow air to
enter the system through this bleed hole (4).

Vacuum priming

Connect the equipment as detailed on page 3.
Air can be removed using the vacuum facility on the pump.
Note: This method should not be used with vacuum-sensitive equipment.
Turn selector valve fully out, anti-clockwise (vacuum) position.
Turn the volume adjuster valve fully anti-clockwise (out) position.
Pump until bubbles stop appearing in the reservoir, (this generates a
vacuum in the system).
Turn the selector valve fully in, (this action releases the vacuum and rapidly
fills the system with fluid from the reservoir).
The pump and connected system is ready for use.

Pre-filling

Connect the equipment as detailed on page 3.
Turn the selector valve fully clockwise (in) position.
Loosen the reservoir cover lock nut (1) to open the reservoir cover (2) and
let atmospheric pressure into the top of the reservoir.
Open the bleed valve on the UUT.
Carefully operate the scissor-action handles to fill the system. Stop
pumping when fluid comes out of the bleed valve.
Close the bleed valve on the UUT.
If necessary, top-up the reservoir to the 2/3 level with clean fluid.
Secure the reservoir cover by tightening the reservoir cover lock nut (1).
The pump and connected system is ready for use.
GE Druck PV 411A User Manual
Notes
7 K258 Issue No. 3