PM20R-X-X-A02
Page 2 of 8
OPERATING AND SAFETY PRECAUTIONS
READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
EXCESSIVE AIR PRESSURE
STATIC SPARK
HAZARDOUS MATERIALS
HAZARDOUS PRESSURE
WARNING
EXCESSIVE AIR PRESSURE. Can cause person-
al injury, pump damage or property damage.
S
Do not exceed the maximum inlet air pressure as stated on the
pump model plate.
S
Be sure material hoses and other components are able to with-
stand fluid pressures developed by this pump. Check all hoses
for damage or wear. Be certain dispensing device is clean and
in proper working condition.
WARNING
STATIC SPARK. Can cause explosion resulting in
severe injury or death. Ground pump and pumping system.
S
Use the pump grounding screw terminal provided. Use Aro
Part No. 66885-1 Ground Kit or connect a suitable ground wire
(12 ga. min.) to a good earth ground source.
S
Secure pump, connections and all contact points to avoid
vibration and generation of contact or static spark.
S
Consult local building codes and electrical codes for specific
grounding requirements.
S
After grounding, periodically verify continuity of electrical path
to ground. Test with an ohmmeter from each component (e.g.,
hoses, pump, clamps, container, spray gun, etc.) to ground to
insure continuity. Ohmmeter should show 0.1 ohms or less.
S
Submerse the outlet hose end, dispensing valve or device in
the material being dispensed if possible. (Avoid free streaming
of material being dispensed.)
S
Use hoses incorporating a static wire.
S
Use proper ventilation.
S
Keep inflammables away from heat, open flames and sparks.
S
Keep containers closed when not in use.
WARNING
Pump exhaust may contain contaminants. Can
cause severe injury. Pipe exhaust away from work area and per-
sonnel.
S
In the event of a diaphragm rupture, material can be forced out
of the air exhaust muffler.
S
Pipe the exhaust to a safe remote location when pumping haz-
ardous or inflammable materials.
S
Use a grounded 1” minimum i.d. hose between the pump and
the muffler.
WARNING
HAZARDOUS PRESSURE. Can result in serious
injury or property damage. Do not service or clean pump,
hoses or dispensing valve while the system is pressurized.
S
Disconnect air supply line and relieve pressure from the sys-
tem by opening dispensing valve or device and / or carefully
and slowly loosening and removing outlet hose or piping from
pump.
WARNING
HAZARDOUS MATERIALS. Can cause serious in-
jury or property damage. Do not attempt to return a pump to the
factory or service center that contains hazardous material.
Safe handling practices must comply with local and national
laws and safety code requirements.
S
Obtain Material Safety Data Sheets on all materials from the
supplier for proper handling instructions.
WARNING
EXPLOSION HAZARD. Models containing alumi-
num wetted parts cannot be used with III.-Trichloroethane, Me-
thylene Chloride or other Halogenated Hydrocarbon solvents
which may react and explode.
S
Check pump motor section, fluid caps, manifolds and all
wetted parts to assure compatibility before using with solvents
of this type.
WARNING
MISAPPLICATION HAZARD. Do not use models
containing aluminum wetted parts with food products for hu-
man consumption. Plated parts can contain trace amounts of
lead.
CAUTION
Verify the chemical compatibility of the pump
wetted parts and the substance being pumped, flushed or re-
circulated. Chemical compatibility may change with tempera-
ture and concentration of the chemical(s) within the
substances being pumped, flushed or circulated. For specific
fluid compatibility, consult the chemical manufacturer.
CAUTION
Maximum temperatures are based on mechani-
cal stress only. Certain chemicals will significantly reduce
maximum safe operating temperature. Consult the chemical
manufacturer for chemical compatibility and temperature lim-
its. Refer to PUMP DATA on page 1 of this manual.
CAUTION
Be certain all operators of this equipment have
been trained for safe working practices, understand it’s limita-
tions, and wear safety goggles / equipment when required.
CAUTION
Do not use the pump for the structural support of
the piping system. Be certain the system components are
properly supported to prevent stress on the pump parts.
S
Suction and discharge connections should be flexible connec-
tions (such as hose), not rigid piped, and should be compatible
with the substance being pumped.
CAUTION
Prevent unnecessary damage to the pump. Do
not allow pump to operate when out of material for long periods
of time.
S
Disconnect air line from pump when system sits idle for long
periods of time.
CAUTION
Use only genuine ARO replacement parts to as-
sure compatible pressure rating and longest service life.
NOTICE
Replacement warning labels are available upon
request: “Static Spark & Diaphragm Rupture” PN \ 94080.
WARNING
CAUTION
NOTICE
= Hazards or unsafe practices which could
result in severe personal injury, death or
substantial property damage.
= Hazards or unsafe practices which could
result in minor personal injury, product or
property damage.
= Important installation, operation or
maintenance information.
CALL 1-800-577-8111 FOR SALES AND SUPPORT
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