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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
HYDRA–SPRAY
30:1 RATIO BULLDOG PUMP
3000 psi (21.0 MPa, 210 bar) MAXIMUM FLUID WORKING PRESSURE
100 psi (0.7 MPa, 7 bar) MAXIMUM AIR INPUT PRESSURE
Model 237–004, Series A
With Reduced Icing Quiet Air Motor and Severe–Duty Displacement Pump*
Model 221–068, Series A
With Quiet Air Motor and Severe–Duty Displacement Pump*
Model 217–579, Series B
With Standard Air Motor and Severe–Duty Displacement Pump*
Model 237–067, Series A
With Standard Air Motor and PTFE–Packed Displacement Pump
* Severe–Duty Displacement Pumps have an abra-
sion and corrosion–resistant displacement rod and
sleeve. Refer to Technical Data in manual 307–862
for Wetted Parts information.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1997, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
306–694
Supersedes Rev U
First choice when
quality counts.
MODEL 217–579 SHOWN
Rev. W
and PCN W
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Related Manuals for Graco 237-004
Summary of Contents for Graco 237-004
- Page 1 Refer to Technical Data in manual 307–862 for Wetted Parts information. MODEL 217–579 SHOWN GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1997, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
- Page 2 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.
- Page 3 Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately. Permanently coupled hoses cannot be repaired; replace the entire hose. Use only Graco approved hoses. Do not remove any spring guard that is used to help protect the hose from rupture caused by kinks or bends near the couplings.
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Page 4: Fire And Explosion Hazard
WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. Ground the equipment and the object being sprayed. Refer to Grounding on page 5. If there is any static sparking or you feel an electric shock while using this equipment, stop spray- ing immediately. -
Page 5: Installation
Installation Grounding 5. Object being sprayed: according to your local code. WARNING 6. Fluid supply container: according to your local code. FIRE AND EXPLOSION HAZARD Before operating the pump, ground the 7. All solvent pails used when flushing, according to system as explained below. - Page 6 Installation Typical Installation Pump Runaway Valve Spray Gun Air Line Lubricator Back Pressure Regulator Bleed–Type Master Air Valve (required) Director Valve Pump Air Regulator Fluid Suction Hose Air Line Filter Suction Tube Check Valve Packing Nut/Wet–Cup Fluid Drain Valve (required) Drain Back Tube Surge Tank Drain Tube...
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Page 7: System Accessories
Contact your Graco distributor A second bleed–type air valve (C) isolates the air for help in designing a system to suit your particular line accessories for servicing. -
Page 8: Operation
Operation Pressure Relief Procedure 3. Close the bleed-type master air valve (required in your system). WARNING 4. Unlock the gun trigger safety. INJECTION HAZARD 5. Hold a metal part of the gun firmly to the side of a The system pressure must be manually grounded metal pail, and trigger the gun to relieve relieved to prevent the system from pressure. - Page 9 6. If there IS NO solvent in the system: Daily System Startup, Circulating Supply Systems NOTE: Be sure the wet–cup is 1/2 full with Graco Throat a. Turn the director valve (N) to circulate. Seal Liquid or compatible solvent.
- Page 10 Operation 7. If the pump is hard to prime, follow steps 1 to 4. 11. Adjust the air line lubricator (B) and pump runaway Place a waste container under the fluid drain valve valve (A). See the instructions supplied with them. and open the valve.
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Page 11: Maintenance
Pressure Relief Procedure on page 8. Pressure Relief Procedure on page 8. Keep the packing nut/wet–cup (R) half filled with Graco For overnight shutdown relieve the pressure. Always Throat Seal Liquid (TSL) or compatible solvent, to help stop the pump at the bottom of the stroke to prevent the prolong the packing life. -
Page 12: Troubleshooting
Troubleshooting 1. Relieve the pressure. WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the 2. Check all possible causes and problems before Pressure Relief Procedure on page 8. disassembling the pump. PROBLEM CAUSE SOLUTION... -
Page 13: Disconnecting The Displacement Pump
(5) supplied, so it is just snug – no tighter. WARNING Fill the wet–cup half full with Graco Throat Seal Liquid or compatible solvent. Start the pump and run it slowly, at about 20 psi (140 MPa, 1.4 bar) air To reduce the risk of serious injury whenever you pressure, to check that it is operating properly. - Page 14 Parts Model 237–004, Series A 30:1 Ratio Bulldog Pump, with Reduced Icing Quiet Air Motor and Severe–Duty Displacement Pump Includes items 1–17 REF PART NO. NO. DESCRIPTION 100–103* PIN, cotter; 0.12” (3.2 mm) x 1.5” (38 mm) 101–712 NUT, lock; w/nylon inserts; 5/8–11 101–936 NUT, hex, jam;...
- Page 15 Parts Model 221–068, Series A 30:1 Ratio Bulldog Pump, with Quiet Air Motor and Severe–Duty Displacement Pump Includes items 1–17 REF PART NO. NO. DESCRIPTION PIN, cotter; 100–103* 0.12” (3.2 mm) x 1.5” (38 mm) 101–712 NUT, lock; w/nylon inserts; 5/8–11 101–936 NUT, hex, jam;...
- Page 16 Parts Model 217–579, Series B 30:1 Ratio Bulldog Pump, with Standard Air Motor and Severe–Duty Displacement Pump Includes items 1–17 REF PART NO. NO. DESCRIPTION PIN, cotter; 100–103* 0.12” (3.2 mm) x 1.5” (38 mm) 101–712 NUT, lock; w/nylon inserts; 5/8–11 101–936 NUT, hex, jam;...
- Page 17 Parts Model 237–067, Series A 30:1 Ratio Bulldog Pump, with Standard Air Motor and PTFE–Packed Displacement Pump Includes items 1–17 REF PART NO. NO. DESCRIPTION PIN, cotter; 100–103* 0.12” (3.2 mm) x 1.5” (38 mm) 101–712 NUT, lock; w/nylon inserts; 5/8–11 101–936 NUT, hex, jam;...
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Page 18: Mounting Hole Layout
Dimensions Mounting Hole Layout Model 217–579 Shown See 307–049 or 307–304 for Air Motor Dimensional Drawing. USE GASKET 161–806 3/4 npt(f) AIR INLET 4” (102 mm) 1.375” (34.9 mm) R Four 0.437” (11.1 dia. holes on 42.34 in. 10.5” (267 mm) (1075.5 mm) bolt circle 9.75”... -
Page 19: Technical Data
Technical Data Maximum fluid working pressure ......3000 psi (21.0 MPa, 210 bar) Air input pressure operating range . -
Page 20: Graco Warranty
Graco distributor 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.
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