Instructions – Parts List
Parts
1:1 MIX RATIO PRESIDENT
Plural Component
Proportioning Pump
For use in Hydra–Cat and Foam–Cat Sprayers
1440 psi (9.2 MPa, 92 bar) Maximum Working Pressure
Part No. 208851, Series F
12:1 Pressure Ratio
Model 208851 meets certification.
306989L
Part No. 239389, Series A
12:1 Pressure Ratio
1:1 mix ration by volume. See page 10 for other possible mix ratios.
Read warnings and instructions.
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Chart 9. . . . . . . . . . . . . . . . . . . . . . . . . .
Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List and Drawing 12. . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Hole Layout 13. . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Information 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
06915
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441
Copyright 1968, Graco Inc. is registered to I.S. EN ISO 9001
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
INSTRUCTIONS
This equipment is for professional use only.
Read all instruction manuals, tags, and labels before operating the equipment.
Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco
distributor.
Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
Check equipment daily. Repair or replace worn or damaged parts immediately.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
Do not exceed the maximum working pressure of the lowest rated system component. This equip-
ment has a 1440 psi (9.2 MPa, 92 bar) maximum working pressure.
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 180F (82C) or below –40F (–40C).
Do not use the hoses to pull the equipment.
Use only Graco approved hoses. Do not remove hose spring guards, which help protect the hose
from rupture caused by kinks or bends near the couplings.
Use fluids and solvents that are compatible with the equipment wetted parts. Refer to the Techni-
cal Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
Wear hearing protection when operating this equipment.
Comply with all applicable local, state, and national fire, electrical, and safety regulations.
MOVING PARTS HAZARD
Moving parts can pinch or amputate your fingers.
Do not operate the equipment with the air motor plates removed.
Keep clear of all moving parts when starting or operating the pump.
Before checking or servicing the equipment, follow the Pressure Relief Procedure on page 6 to
2 306989
prevent the equipment from starting unexpectedly.
WARNING
INJECTION HAZARD
Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause
extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin
can also cause serious injury.
Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medi-
cal attention.
Do not point the spray gun at anyone or at any part of the body.
Do not put your hand or fingers over the spray tip.
Do not stop or deflect leaks with your hand, body, glove or rag.
Do not “blow back” fluid; this is not an air spray system.
Be sure the gun trigger safety operates before spraying.
Lock the gun trigger safety when you stop spraying.
Follow the Pressure Relief Procedure on page 6 whenever you: are instructed to relieve pres-
sure; stop spraying; clean, check, or service the equipment; and install or clean the spray tip.
Tighten all fluid connections before operating the equipment.
Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames, or sparks can cause a hazardous condition and
result in fire or explosion and serious injury.
Ground the equipment and the object being sprayed. See Grounding on page 5.
Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
Keep the spray area free of debris, including solvent, rags, and gasoline.
Before operating this equipment, electrically disconnect all equipment in the spray area.
Before operating this equipment, extinguish all open flames or pilot lights in the spray area.
Do not smoke in the spray area.
Do not turn on or off any light switch in the spray area while operating or if fumes are present.
Do not operate a gasoline engine in the spray area.
If there is any static sparking while using the equipment, stop spraying immediately. Identify and
correct the problem.
306989 3
WARNING
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
Know the specific hazards of the fluid you are using.
Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
Graco does not manufacture or supply any of the reactive chemical components that may be used
in this equipment and is not responsible for their effects. Graco assumes no responsibility for loss,
damage, expense or claims for personal injury or property damage, direct or consequential, arising
from the use of such chemical components.
Installation
General Information
NOTE:
Reference numbers and letters in parentheses in
the text refer to the callouts in the figures and the
parts drawing.
Use Genuine Graco Parts and Accessories, avail-
able from your Graco distributor.
WARNING
Two accessories, a bleed-type master air valve,
and a fluid drain valve are required for your system
to reduce the risk of serious injury from moving
parts, fluid injection, or splashing in the eyes or on
the skin, when shutting off the pump.
This pump is designed to be part of a Hydra-Cat
Foam-Cat
polyurethane material. Refer to the separate instructions supplied with each component in your system, as
well as any system manuals, for specific installation
instructions, or contact your Graco representative.
sprayer that will proportion, mix, and spray
or
The bleed-type master air valve relieves trapped air
between the valve and the pump, after the pump is
shut off. Trapped air can cause the pump to cycle
unexpectedly and result in serious injury if you are
adjusting or repairing the pump.
The fluid drain valve helps relieve fluid pressure in
the displacement pump, hose, and gun/dispensing
valve when shutting off the pump. Triggering the
gun/valve to relieve pressure may not be sufficient,
especially if there is a clog in the hose, gun/valve,
or tip/nozzle.
4 306989
Installation
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 3.
1. Pump: To ground the pump, loosen the grounding
lug locknut (W) and washer (X). See Fig. 1. Insert
one end of a 12 gauge (1.5 mm2) minimum ground
wire (Y) into the slot in lug (Z) and tighten the
locknut securely. Connect the other end of the
ground wire to a true earth ground. Order part no.
222011, Ground Wire and Clamp.
2. Air and fluid hoses: use only electrically conductive
hoses with a maximum of 500 feet (150 m) combined hose length to ensure maximum grounding
continuity.
5. Fluid supply container: follow your local code.
6. Object being sprayed: follow your local code.
7. Solvent pails used when flushing: follow your local
code. Use only metal pails, which are conductive,
placed on a grounded surface. Do not place the
pail on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding continuity.
8. To maintain grounding continuity when flushing or
relieving pressure, hold a metal part of the spray
gun firmly to the side of a grounded metal pail,
then trigger the gun.
XYZ
3. Air compressor: follow the air compressor
manufacturer’s recommendations.
4. Spray gun or dispensing valve: ground by connecting the gun/valve to a properly grounded fluid hose
and pump.
Fig. 1
W
0720
306989 5
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