Graco Blood Pressure Monitor 288776 User Manual

Instructions-Parts  
2-Quart (1.9 Liter)  
Pressure Cup  
312111A  
For controlling atomizing air and fluid pressure for any pressure feed manual  
spray gun when more than one quart of fluid will be used.  
288776  
50 psi (0.35 MPa, 3.5 bar) Maximum Regulated Fluid Pressure  
50 psi (0.35 MPa, 3.5 bar) Maximum Air Inlet Pressure  
Important Safety Instructions  
Read all warnings and instructions in this manual.  
Save these instructions.  
This manual is available in the following languages.  
English  
Spanish  
French  
German  
Italian  
312111  
312112  
312113  
312114  
312115  
Contents  
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . .6  
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8  
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441  
Copyright 2007, Graco Inc. is registered to I.S. EN ISO 9001  
 
Warnings  
WARNING  
PRESSURIZED EQUIPMENT HAZARD  
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the  
eyes or on skin and cause serious injury.  
• Follow Pressure Relief Procedure in this manual, when you stop spraying and  
before cleaning, checking, or servicing equipment.  
• Tighten all fluid connections before operating the equipment.  
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immedi-  
ately.  
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 appli-  
cable guidelines.  
• Always wear impervious gloves when spraying or cleaning equipment.  
PRESSURIZED ALUMINUM PARTS HAZARD  
Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon  
solvents or fluids containing such solvents in pressurized aluminum equipment. Such  
use can cause serious chemical reaction and equipment rupture, and result in death,  
serious injury, and property damage.  
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  
312111A  
3
 
Description  
Description  
The Model 288776 2-quart (1.9-liter) pressure  
cup is designed to be used with any pressure  
feed manual spray gun when more than 1  
quart of fluid will be used. Pressure cups pro-  
vide a better degree of control over atomizing  
air and fluid pressure than siphon feed equip-  
ment. The Model 288776 enables you to spray  
a wider range of refinish materials and has a  
full 2-quart (1.9 liter) capacity when needed.  
The regulator assembly controls pressure of  
fluid in the cup from 0-50 psi (0.35 MPa, 3.5  
bar). The manual pressure relief valve allows  
air pressure to bleed from cup.  
Never tamper with the automatic pressure  
relief valve (6b). The automatic relief valve  
limits the maximum air pressure entering the  
cup. If the relief valve does not work properly,  
over-pressurization may occur and cause the  
cup to rupture or explode. Air pressure in the  
cup must never exceed 50 psi (0.35 MPa, 3.5  
bar).  
Set-Up  
2. Connect fluid hose to fluid inlet of gun and  
to cup fluid outlet as shown.  
Always disconnect cup assembly from air sup-  
ply and relieve pressure in cup (open manual  
relief valve counter-clockwise) before installing  
or removing canister from lid assembly.  
3. Connect handle to top of cup as shown.  
4. It is best for the air supply line to pass  
through a Graco Air Control Unit to filter  
dirt from the air and extract water and oil.  
Connect the air supply hose to the air inlet  
fitting on cup regulator.  
1. Connect air hose to air inlet of gun and to  
air outlet on cup regulator as shown.  
Note: Follow the manufacturer’s directions for the mixing and preparation of material. Strain  
material using a fine mesh screen to prevent the entry of foreign matter and the clogging of fluid  
passageways.  
4
312111A  
 
   
Operation  
Operation  
7. To decrease paint flow, pull out regulator  
knob and turn counter-clockwise to lower  
cup pressure. Open the relief valve to  
bleed off excess pressure. Reseal relief  
valve. Repeat step 6. The cup lid has a  
check valve that prevents the cup from  
losing pressure until the relief valve is  
opened.  
Always disconnect cup assembly from air sup-  
ply and relieve pressure in cup (open manual  
pressure relief valve counter-clockwise) before  
installing or removing canister from lid assem-  
bly.  
8. Atomizing air for the spray gun can be  
adjusted at the gun by means of an air  
adjusting valve on the spray gun.  
1. Pull out regulator knob and turn fully  
counter-clockwise. Open manual pres-  
sure relief valve on cup lid (counter-clock-  
wise).  
Note: To achieve desired cup pressure you  
must always start at a lower pressure and  
adjust up to the desired setting.  
2. Open lid and fill cup with desired spray-  
able material.  
3. Close lid and seal by turning clockwise  
hand-tight.  
Cup Air Outlet  
Cup Pressure  
Regulator  
Knob  
4. Close relief valve on cup lid hand-tight  
turning clockwise.  
Manual  
Pressure  
Relief Valve  
5. Set wall-mounted regulator (not supplied)  
to desired air pressure. (This is your  
atomizing air.)  
Automatic  
Pressure  
Relief Valve  
6. Slowly turn the cup regulator knob clock-  
wise while pulling the gun trigger fully  
back. Continue clockwise until desired  
flow is achieved. Push in regulator knob to  
lock. Maximum cup pressure is 50 psi  
(0.35 MPa, 3.5 bar).  
Fluid Outlet  
ti7063  
312111A  
5
 
         
Maintenance  
Maintenance  
page 5 and spray until clean solvent  
appears. Cup and gun material passages  
should be clean now.  
4. Depressurize cup (See Operation, step  
1) and empty remaining solvent from cup  
and wipe clean with a solvent soaked  
cloth.  
Paint can erupt from the cup due to rapid  
depressurization. Never open the cup prior to  
turning cup pressure regulator knob to the full  
“off” position (counter-clockwise) and reliev-  
ing cup pressure by opening (counter-clock-  
wise) manual pressure relief valve.  
CAUTION  
Never clean your Model 288776 in a gun  
washer. The automatic pressure relief valve,  
regulator body, and gauge will be damaged  
by use in a gun washer. The canister only  
can be cleaned in a gun washer.  
1. After relieving cup pressure and turning  
cup pressure regulator to the full “off”  
position (counter-clockwise), open cup lid  
by turning counter-clockwise.  
2. Pour out any remaining material and add  
a compatible solvent.  
Troubleshooting  
Problem  
Cause  
Solution  
Excess pressure in cup.  
Leak at regulator valve assem- Replace.  
bly.  
Replace.  
Replace.  
Replace.  
Replace.  
Gauge registering incorrectly.  
Automatic relief valve setting too  
high.  
Valve spring broken or distorted.  
Diaphragm damaged.  
Insufficient pressure in cup. Check valve stuck shut.  
Clean or Replace.  
Automatic relief valve setting too Replace.  
low.  
Replace.  
Gauge registering incorrectly.  
Leak at cup lid threads.  
Tighten cup or replace gasket.  
Tighten.  
Manual pressure relief valve par-  
tially open.  
6
312111A  
 
 
Troubleshooting  
312111A  
7
 
Parts  
Parts  
1
7
2
6e  
9
6b  
6d  
6c  
Fluid Pressure Regulator  
Part Number 234434  
4
10  
6a  
11  
12  
5
3
13  
14  
15  
8
16  
17  
18  
Model 288776  
8
312111A  
 
Technical Data  
Ref.  
No. Part No. Description  
Qty.  
1
1
1
1
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
104655 GAUGE, fluid pressure  
234434 REGULATOR, fluid pressure  
288777 TUBE, fluid  
2
3
4
288799 LID, cup  
5
288800 GASKET, lid  
6
288801 VALVE/FITTING KIT  
CHECK VALVE ASSEMBLY  
VALVE, pressure relief, automatic  
VALVE, pressure relief, manual  
FITTING, INLET  
6a  
6b  
6c  
6d  
6e  
7
FITTING, tee  
288837 CUP, handle, nut, and fluid outlet  
288836 CANISTER, 2-Quart  
288778 NIPPLE, 1/4 npt  
ADJUSTING KNOB  
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
CAGE, spring  
SCREW, adjusting, assembly  
SPRING, top  
DIAPHRAGM, assembly  
BODY  
VALVE ASSEMBLY, inner  
SPRING, valve  
PLUG, bottom and o-ring assembly  
TAGS, warning (not shown)  
Replacement Danger and Warning labels, tags, and cards are available at no cost.  
Technical Data  
Maximum regulated cup pressure (fluid pressure). . . . . . . 50 psi (0.35 MPa, 3.5 bar)  
Maximum air inlet pressure . . . . . . . . . . . . . . . . . . . . . . . . 50 psi (0.35 MPa, 3.5 bar)  
Automatic pressure relief valve release . . . . . . . . . . . . . . . 40 psi (0.28 MPa, 2.8 bar)  
Weight (empty). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 lbs (1.5 kg)  
Hose connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air 1/4 in. nps (m)  
Fluid 3/8 in. nps (m)  
Wetted parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum, polyethylene foam  
312111A  
9
 
 
Graco Standard Warranty  
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  
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 reserves the right to make changes at any time without notice.  
This manual contains English. MM 312111  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441  
312111A 2/2007  
 
   

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