tank and drops to a preset low level,
the pressure switch automatically turns
the motor back on. In the "off"
position, the compressor will not
operate. This switch should be in the
"off" position when connecting or
disconnecting the power cord from the
electrical outlet.
When the pressure switch turns the
motor off you will hear air leaking out
of the pressure switch unloader valve
for a short time. This releases the air
pressure from the discharge tube and
allows the compressor to restart easier.
For units without a manual switch,
whenever the procedures call for
turning the switch to the OFF position,
use the switch at the disconnect
instead.
Unloader
- Device on pressure switch
which allows pressurized air to vent
alleviating motor restarts under load.
Regulator
- The regulator controls the
amount of air pressure released at the
hose outlet (Sold separately).
ASME Safety Valve
- This valve
automatically releases air if the tank
pressure exceeds the preset maximum.
Discharge tube
- This tube carries
compressed air from the pump to the
check valve. This tube becomes very
hot during use. To avoid the risk of
severe burns, never touch the
discharge tube.
General Safety
(Con’t)
deterioration, weakness or leakage.
Repair or replace defective items
before using.
8. Check all fasteners at frequent
intervals for proper tightness.
Motors, electrical
equipment and controls
can cause electrical arcs
that will ignite a
flammable gas or vapor. Never operate
or repair in or near a flammable gas or
vapor. Never store flammable liquids
or gases in the vicinity of the
compressor.
Never operate compressor
without a beltguard. This
unit can start automatically
without warning. Personal
injury or property damage
could occur from contact with moving
parts.
9. Do not wear loose clothing or
jewelry that will get caught in the
moving parts of the unit.
Compressor parts may be
hot even if the unit is
stopped.
10. Keep fingers away from a running
compressor; fast moving and hot
parts will cause injury and/or burns.
11. If the equipment should start to
vibrate abnormally, STOP the
engine/motor and check
immediately for the cause. Vibration
is generally a warning of trouble.
12. To reduce fire hazard, keep
engine/motor exterior free of oil,
solvent, or excessive grease.
An ASME code
safety relief valve
with a setting no higher than 150 psi
MUST be installed in the tank for this
compressor. The ASME safety valve
must have sufficient flow and pressure
ratings to protect the pressurized
components from bursting.
See compressor
specification decal
for maximum operating pressure. Do
not operate with pressure switch or
pilot valves set higher than the
maximum operating pressure.
13. Never attempt to adjust ASME
safety valve. Keep safety valve free
from paint and other accumulations.
Never use plastic
(PVC) pipe for
compressed air. Serious injury or death
could result.
!
WARNING
!
CAUTION
!
WARNING
!
CAUTION
!
WARNING
!
WARNING
2
Operating Instructions
Never attempt to repair or
modify a tank! Welding,
drilling or any other
modification will weaken the tank
resulting in damage from rupture or
explosion. Always replace worn,
cracked or damaged tanks.
Drain liquid from
tank daily.
14. Tanks rust from moisture build-up,
which weakens the tank. Make sure
to drain tank regularly and inspect
periodically for unsafe conditions
such as rust formation and corrosion.
15. Fast moving air will stir up dust and
debris which may be harmful. Release
air slowly when draining moisture or
depressurizing the compressor system.
SPRAYING PRECAUTIONS
Do not spray flammable
materials in vicinity of
open flame or near
ignition sources including
the compressor unit.
16. Do not smoke when spraying paint,
insecticides, or other flammable
substances.
17. Use a face mask/
respirator when
spraying and spray in a
well ventilated area to
prevent health and fire
hazards.
18. Do not direct paint or other
sprayed material at the compressor.
Locate compressor as far away from
the spraying area as possible to
minimize overspray accumulation
on the compressor.
19. When spraying or cleaning with
solvents or toxic chemicals, follow
the instructions provided by the
chemical manufacturer.
Introduction
Refer to Figure 2.
INSTALLING A SHUT-OFF VALVE
A shut-off valve should be installed on
the discharge port of the tank to
control the air flow out of the tank.
The valve should be located between
the tank and the piping system.
Pressure switch
- Auto/Off Switch - In
the "auto" position, the compressor
shuts off automatically when tank
pressure reaches the maximum preset
pressure. After air is used from the
!
WARNING
NOTICE
!
DANGER
Drain Petcock
Discharge Tube
Belt Guard
Check
Valve
Safety
Valve
Pressure
Switch
Tank
Outlet
Figure 2
Tank Drain Valve
Tank
Pressure
Gauge
