Cleaning Drain Valve - PRONAR T683 Operator's Manual

Pronar T683
After release valve stem should automatically close and stop airflow from tank.
Draining water from air tank:

5.3.4 CLEANING DRAIN VALVE

DANGER
Before dismantling drain valve release air from tank.
Required service actions
Reduce pressure in air tank.
Unscrew valve.
Clean valve, purge with compressed air.
Change copper seal.
Screw in valve, fill air tank, and check tank tightness.
Cleaning valve:
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.
• every seven days of use.
Reduction of pressure in tank is achieved by tilting the drain valve
mandrel.
• every 12 months (before winter period).
5.18
SECTION 5