4
MAINTENANCE:
To obtain best efficiency
and longest periods of trouble-free operation
the air supply must be kept clean as dirt is the
most common cause of erratic regulator
operation. Only a few parts require occasional
replacement most troubles can be cured and
prevented by a thorough and careful cleaning
procedure. To clean it is not necessary to
remove unit from its piping or line. At the
bottom of the bowl is a manual drain valve
which should be periodically opened particu-
larly when sediment is visible in bowl.
DISASSEMBLY FOR CLEANING:
Depressurize the air line, unscrew and
remove the bowl. Unscrew filter element
and let down bottom disc, filter, top disc,
spring and plunger. Note orientation of
plunger and top disc. Clean filter element
and assemble parts as removed. Make sure
“o” ring seal for bowl is in place. Tighten the
filter element and bowl hand tight.
CLEANING:
For best results clean parts with soap water.
After cleaning blow out parts including body
of unit with compressed air. The bronze filter
should be blown out from the inside,blocking
one end with folded rag.
Plastic bowl must
be cleaned with household soap only!
R-75 Regulator and Filter
Installation,
Operation
and Maintenance
WARNING!
The polycarbonate plastic
material used to manufacture the plastic
bowls may be attacked by certain
chemicals. Do not use this filter system with
air supplied by a compressor lubricated with
synthetic oils or oils containing phosphate
esters or chlorinated hydrocarbons. These
oils can carry over into the air lines and
chemically attack and possibly rupture the
bowl. Also, do not expose the bowl to
materials such as carbon tetrachloride,
trichlorethylene, acetone paint thinner,
cleaning fluids, or other harmful materials,
for they too will cause the plastic to craze
and/or rupture. For use in environments
where any of these chemicals may be
present, consult the factory.
INSTALLATION:
Install in vertical position
with air supply connected to the
in
port
stamped on body of unit. Before piping-in,
blow out line to remove scale and other
foreign matter. If pipe compound is used
apply only to male threads and just enough
to make tight connections.
WARNING:
Maximum primary air
pressure 135 p.s.i. Temperature
Range 40°F to 125°F. Accurate
regulation between 2 and 60 p.s.i. De-
pressurize regulator before servicing.
AIR PRESSURE
ADJUSTING KNOB
PULL KNOB TO
REGULATE - PUSH
KNOB TO LOCK
AIR IN
BRONZE FILTER
PLASTIC BOWL
MANUAL MOISTURE
DRAIN
AIR OUT
PUSH UP VALVE TO
DRAIN MOISTURE -
ATTACH HOSE TO
NIPPLE TO DIRECT
WATER TO CONTAINER.
