PRONAR T669, Operator'S Manual

Page: 108 / 135

Pronar T669 SECTION 5
5.20
Required service actions
Open out drain valve (1) placed in lower part of tank (2).
The compressed air in the tank causes the removal of water to the
exterior.
After release valve stem should automatically close and stop airflow from tank.
In the event, that the valve stem resists returning to its setting, then
the whole drain valve must be unscrewed and cleaned, or replaced (if
it is damaged) - see section 5.3.5.
Draining water from air tank:
•
after each week of use.
5.3.5 CLEANING DRAIN VALVE
DANGER
Before dismantling drain valve release air from tank.
Required service actions
Reduce pressure in air tank.
Reduction of pressure in tank is achieved by tilting the drain valve
mandrel.
Unscrew valve.
Clean valve, purge with compressed air.
Change copper seal.
Screw in valve, fill air tank, and check tank tightness.
Cleaning valve:
•
every 12 months (before winter period).