NAG/IM/PHP 10-40/01/22
9
5.
FUNCTIONAL DESCRIPTION
Pressure Release Valve (3):
Used to reduce or release the vacuum /
pressure in the system. Minimal force is
required to seal the system.
Fine Adjustment Valve (4):
The vacuum / pressure can be finely adjusted
by turning this fine adjustment valve either
clockwise or anticlockwise to increase or
decrease pressure accordingly.
Pressure or Vacuum Selector (5):
Press the selector as indicated in Figure 1 to
engage the desired mode. Ensure that the
release valve is closed firmly (clockwise
motion) prior to pumping.
Knurling Thumb Nut (2) (Over Pressure
Protection):
To adjust maximum output pressure of the
pump turn the knurling thumb nuts (2) to
increase or decrease the stroke length so
that the maximum pressure is controlled per
stroke.
