Cleaning Drain Valve - PRONAR T669 Operator's Manual

Pronar T669
Required service actions
Open out drain valve (1) placed in lower part of tank (2).
After release valve stem should automatically close and stop airflow from tank.
Draining water from air tank:

5.3.5 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:
The compressed air in the tank causes the removal of water to the
exterior.
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.
• after each week of use.
Reduction of pressure in tank is achieved by tilting the drain valve
mandrel.
• every 12 months (before winter period).
5.20
SECTION 5