PRONAR T028KM, Operator'S Manual

Page: 82 / 101

PRONAR T028KM PRONAR T028ML SECTION 5
5.20
5.4.1 DRAINING WATER FROM AIR TANK
Required maintenance activities
Tilt drain valve stem (2) located in the
lower part of tank (1).
The compressed air in the tank causes
the removal of water to the exterior.
Released valve stem should
automatically close and stop flow of air
from the 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 CLEANING DRAIN VALVE.
5.4.2 CLEANING DRAIN VALVE
DANGER
Release air from tank before dismantling drain valve.
Required maintenance activities
Completely reduce pressure in air tank.
Reduction of pressure in tank is achieved by tilting the drain valve
stem.
Unscrew both valves.
Clean the valve and blow it with compressed air.
Change copper seals.
Screw valves in, fill tanks with air, check tightness.
FIGURE 5.10 Draining water from the
tank
(1) air tank, (2) drain valve