The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When
these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific
hazard symbols and warnings not covered in this section may appear throughout the body of this manual where
applicable.
WARNING
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just
a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
•Do not point gun at anyone or at any part of the body.
•Do not put your hand over the spray tip.
•Do not stop or deflect leaks with your hand, body, glove, or rag.
•Do not spray without tip guard and trigger guard installed.
•Engage trigger lock when not spraying.
•Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
•Use equipment only in well ventilated area.
•Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
•Keep work area free of debris, including solvent, rags and gasoline.
•Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
•Ground equipment and conductive objects in work area. See Grounding instructions.
•Use only grounded hoses.
•Hold gun firmly to side of grounded pail when triggering into pail.
•If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
•Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings.
•Check equipment daily. Repair or replace worn or damaged parts immediately.
•Do not alter or modify equipment.
•For professional use only.
•Use equipment only for its intended purpose. Call your Graco distributor for information.
•Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
•Do not use hoses to pull equipment.
•Comply with all applicable safety regulations.
2310726H
Page 3
Warnings
WARNING
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers and other body parts.
•Keep clear of moving parts.
•Do not operate equipment with protective guards or covers removed.
•Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
•Read MSDS’s to know the specific hazards of the fluids you are using.
•Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
•Protective eyewear
•Clothing and respirator as recommended by the fluid and solvent manufacturer
•Gloves
•Hearing protection
310726H3
Page 4
Grounding
Grounding
WARNING
Your system must be grounded. Read warnings, page
2.
Pump: use ground wire and clamp. Loosen grounding
lug locknut (A) and washer (B). Insert 12 gauge minimum ground wire end (D) into lug slot (C) and tighten
locknut securely. Connect ground clamp to a true earth
ground.
To maintain grounding continuity when flushing or
relieving pressure: hold metal part of the spray
gun/dispense valve firmly to the side of a grounded
metal pail, then trigger the gun/valve.
Operation
WARNING
Air and fluid hoses: use only electrically conductive
hoses. Check electrical resistance of hoses once a
week. Refer to the hose tag or contact supplier for maximum resistance limits. If total resistance to ground
exceeds limits, replace hose immediately.
D
C
B
A
F
IG. 1
Air compressor: follow manufacturer’s recommenda-
tions.
Spray gun / Dispense valve: ground through connection to a properly grounded fluid hose and pump.
Fluid supply container: follow local code.
Object being sprayed: follow local code.
Keep your fingers, hands, and tools away from the
priming piston and the air motor piston during operation and whenever the pump air and fluid pressure is
not fully relieved. The pump priming piston extends
below the foot valve during operation and could pinch
or amputate your fingers or hands as it moves up into
the cylinder.
Be sure all moving part shields are installed and safety
devices are operating properly before each use.
WARNING
Tighten all fluid connections securely before each use.
High pressure fluid can dislodge a loose coupling or
allow high pressure spray to be emitted from the coupling.
CAUTION
Never operate one pump alone. Do not disconnect
one pump or allow a pump to run out of material. The
system is designed to have both pumps run together.
Running one pump alone puts too much stress on the
hardware that connects the air motor to the displacement pumps and could cause the hardware to fracture.
Solvent pails used when flushing: follow local code.
Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a nonconductive surface, such as paper or cardboard, which interrupts
grounding continuity.
4310726H
Page 5
Operation
Pressure Relief Procedure
WARNING
Follow Pressure Relief Procedure when you stop
dispensing and before cleaning, checking, or servicing
equipment. Read warnings, page 2.
1. Engage trigger lock.
2. Turn off air to the pump air motor.
3. Disengage the trigger lock.
4. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
5. Engage the trigger lock.
6. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave
drain valve(s) open until you are ready to dispense
again.
6. Stand clear of the pumps. Turn the ram control to
DOWN. When the ram plates enter the pails and
material comes out the vents, close the vent valves.
Set the ram down pressure to at least 50 psi (345
kPa, 3.4 bar). More pressure can be used for high
viscosity materials.
7. Remove the mixer if one is installed.
8. Open the outlet valves on the hoses.
9. Set the President air motor regulator to 40 psi (276
kPa, 2.8 bar). Slowly open the pump control air
valve just until the pumps start moving. (Some air
will escape while the valve is partially open.) When
the pumps are primed and filling the hoses, the
pump control air valve can be fully opened. When
both materials are coming through the outlets free
of test oil, close the dispense valve.
Dispensing Mixed Material
1. Install a mixer on the outlet valve.
2. Set pump motor valve to the ON position.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen tip
guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Clear
hose or tip obstruction.
Initial Startup
1. Connect a 1/2 in. (12.7 mm) air hose to the main air
inlet connection.
2. Connect the dispense valve kit.
3. Raise the pneumatic ram:
a. Turn the ram control to UP.
b. Turn the ram air regulator up until the pumps
begin to rise.
4. Open a pail of component A and B. Place the pails
in their proper spots on the frame assembly pail levelers. Hook the pail handles over the nearby frame
bolts.
3. Open dispense valve. Adjust President air motor
regulator from 40–120 psi (0.28–0.8 MPa, 2.8–8
bar) to obtain desired flow rate.
Shutdown
When you are done dispensing, remove the disposable
mixer, and wipe off the outlet. Depending on what type
of material you are dispensing, it may be better to leave
the mixer on until the next time you use the equipment,
or it may be necessary to not only wipe off the outlet but
to seal it from air. Part No. 551327 plastic disposable
caps are available for this purpose.
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505
All written and visual data contained in this document reflects the latest product information available at the time of publication.
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2003, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
Graco reserves the right to make changes at any time without notice.
For patent information, see www.graco.com/patents.
Original instructions. This manual contains English. MM 310726
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
www.graco.com
Revised March 2013
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