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GENERAL SAFETY INFORMATION
Follow all safety codes and the Occupational Safety and
Health Act (OSHA).
These User Instructions contain specific safety markings
where non-observance of an instruction would cause hazards.
The specific safety markings are:
This symbol indicates safety instructions where non-compliance
would affect personal safety and could result in serious injury.
CAUTION
This symbol indicates safety instructions where non-
compliance will involve some risk to safe operation and personal
safety and would damage the equipment and or property.
Do NOT pump Gasoline or flammable fluids with flash
point below 98°F (37°C) Explosion or serious injury may occur.
Incompatible fluids may cause premature failure of the
pump. It is the customer's responsibility to ensure that
fluids are compatible with pump materials.
If used with C0 2 or N 2
ventilated.
CAUTION
If pump is to be used in high flow, low pressure
applications, adjust air pressure to 20 PSI (1.38 bar) above
discharge pressure.
Do NOT Exceed 100 PSI (6.9 bar) Air Inlet
CAUTION
Pressure.
CAUTION
Continuous operation above 120°F (48.9°C)
will reduce pump life.
CAUTION
Inlet air must be dry and oil free - use an air/oil
filter and air dryer.
CAUTION
Mount with ports facing down.
To Reduce the risk of static sparking, ground the pump
and all other equipment used or located in the pumping
area. Check your local electrical code for detailed
grounding instructions for your area and type of equipment.
Symptom
TROUBLESHOOTING CHART
Pump will not start (stalls)
Pump runs, but no fluid
Pump leaks through exhaust port
Flow rate is low
Pump leaks
be sure the area is well
Possible Cause(s)
1. Inadequate air supply (20 PSI Min.)
2. Contaminated air supply
3. Ruptured diaphragm (2)
4. Check shuttle valve for wear (11)
1. A leak or break in the product inlet line
2. A leak or break in the product discharge line
1. Leak at upper exhaust port o-ring (13)
2. Shaft seal o-rings damaged or worn
3. Inadequate slide lubrication
1. Tubing or hose is damaged or blocked
2. Check viscosity of medium being pumped
3. Check valves not seated correctly (6)
1. Ruptured or worn out diaphragm (2)
2. Pump housing screws not torqued adequately
When using high pressure gas tanks make sure a
secondary regulator is used to avoid accidental damage to
pump.
CAUTION
Do not clean or service FLOJET pumps,
hoses or valves while the system is pressurized.
CAUTION
This is not a submersible pump - use only in
dry environments.
PREVENTIVE MAINTENANCE TIPS
Tips to help prolong your pump's life.
• If pumping liquid other than water, pump should be
flushed with water (if applicable) after every use.
• Before freezing conditions occur, pump must be liquid free.
• If mounting pump in an outdoor environment, shield
pump from environmental extremes (i.e. sunlight, water
from washdown spray, rain, etc.). Avoid high heat and
humid installations.
• When using an air compressor, use an inline air dryer
(PN# FJ520B) before the pump to limit water build-up.
WARRANTY
RETURN PROCEDURE
Prior to returning any product to FLOJET, call customer
service for an authorization number. This number must be
written on the outside of the shipping package. Place a note
inside the package with an explanation regarding the
reason for return as well as the authorization number.
Include your name, address and phone number.
Corrective Action
1. Increase air inlet pressure
2. An air dryer might be required
3. Replace diaphragm (2)
4. Replace shuttle valve if necessary (11)
1. Replace product line
2. Replace product line
1. Replace exhaust port (13)
2. Replace shaft seal o-rings
3. Replace with shuttle valve kit
1. Clean or replace
2. Reduce viscosity of medium, increase
hose diameter or contact factory for
recommendation
3. Reinstall check valves (6)
1. Replace diaphragm (2)
2. Torque screws to 20 in lb
For more information visit us
online at www.flojet.com
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