connection units using thread sealant and ensuring the fitting is tight
but not over tightened. Again do not react the tighten force with the
pump body or the casting may be damaged.
The tap fitment of the vacuum connection unit should be set with the
handle across the flow
through the body of the valve in its SHUT position.
The vacuum pump hose can be secured to the vacuum connection unit hose
tail and retained with a suitable hose clip.
To evacuate the car system, follow the car manufacturers manual, using
the vacuum connection unit shut off valve to seal the system once
maximum vacuum has been drawn with a suitable vacuum pump.
Fill the car system following the instruction sheet provided with the
Removal of the vacuum connection unit is a reverse of the initial stages
of this sheet. Refit the
hexagon plug to reseal the hydraulic pump unit having flushed the pump
through with neat car