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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
33:1 RATIO BULLDOG AND 68:1 RATIO KING
Cart-Mounted Airless Package
WITH DURA-FLO
33:1 RATIO BULLDOG PUMPS
228 bar (3300 psi) Maximum Working Pressure
7 bar (100 psi) Maximum Air Inlet Pressure
Part No. 238–253, Series A
With High Pressure Fluid Filter
Part No. 238–257, Series A
With High Pressure Fluid Filter,
hose and gun
Part No. 238–254, Series A
With High Pressure Surge Tank
68:1 RATIO KING
422 bar (6120 psi) Maximum
Working Pressure
6.3 bar (90 psi) Maximum
Air Inlet Pressure
Part No. 238–265, Series A
With High Pressure Fluid Filter
Part No. 238–266, Series A
With High Pressure Fluid Filter,
hose and gun
Refer to page 2 for Table of Contents.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
750 DISPLACEMENT PUMP
PUMPS
Model 238–257 Shown
COPYRIGHT 1995, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
308–628
CARBON STEEL
Rev. A
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Summary of Contents for Graco RATIO BULLDOG 238-253
- Page 1 With High Pressure Fluid Filter, hose and gun Refer to page 2 for Table of Contents. Model 238–257 Shown GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1995, 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 not sure, call your Graco distributor. Do not alter or modify this equipment.
- Page 3 WARNING INJECTION HAZARD Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed 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.
- Page 4 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 FIRE AND EXPLOSION HAZARD Before operating the pump, ground the NOTE: Always use Genuine Graco Parts and Acces- system as explained below. Also read sories, available from your Graco distributor. Refer to the section FIRE OR EXPLOSION HAZ- the Product Data Sheet for the pump, Form No.
- Page 6 Setup Supplied Components The fluid filter (7) or surge tank includes a 60 mesh (250 micron) stainless steel element to filter Refer to Fig. 2. particles from the fluid as it leaves the pump. It includes the fluid drain valve (D), which is re- quired in your system to relieve fluid pressure in the WARNING hose and gun (see the WARNING at left).
- Page 7 Setup SUPPLIED WITH ALL MODELS SUPPLIED WITH MODELS 238–257 AND COMPONENTS YOU MUST SUPPLY 238–266 ONLY Pump Cart Electrically Conductive Air Supply Hose 102 Airless Spray Gun Pump Intake Bushing Bleed-Type Master Air Valve 103 Electrically Conductive Fluid Supply Hose Fluid Filter (includes drain valve) (for accessories) 104 Electrically Conductive Fluid Whip Hose...
- Page 8 Pressure Relief Procedure Packing Nut/Wet-Cup WARNING Before starting, fill the packing nut (F) 1/3 full with Graco Throat Seal Liquid (TSL) or compatible solvent. INJECTION HAZARD See Fig. 3. The system pressure must be manually relieved to prevent the system from starting or spraying accidentally.
- Page 9 Operation Set the Air and Fluid Pressure CAUTION WARNING To avoid tip-over, the cart must be on a flat and level surface. Failure to follow this caution could result in injury or equipment damage. To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8.
- Page 10 Operation Shutdown and Care of the Pump CAUTION WARNING Never leave water or water-base fluid in the pump overnight. If you are pumping water-base fluid, flush To reduce the risk of serious injury whenever you with water first, then with a rust inhibitor such as are instructed to relieve pressure, always follow the mineral spirits.
- Page 11 Operation Fluid Filter (surge tank on Model 238–254) Suction Hose Fluid Shutoff Valve 11 Suction Tube Detail of Air Line Connections 35 Red-Handled Bleed-Type Master Air Valve (required, for pump) 37 Air Line Male Coupler 38 Air Line Female Coupler 41 Pump Air Filter/Regulator 102 Airless Spray Gun 103 Electrically Conductive Fluid Supply Hose...
- Page 12 Parts Part No. 238–253, Series A (includes items 1–50) Part No. 238–257, Series A (includes items 1–107) 18 (Ref) (Ref)
- Page 13 Parts Part No. 238–253, Series A (includes items 1–50) Part No. 238–257, Series A (includes items 1–107) Ref. Ref. Part No. Description Qty. Part No. Description Qty. 237–366 PUMP, Bulldog, 33:1 ratio; 237–569 GROUND WIRE AND CLAMP See manual 308–417 for parts 113–218 BLEED VALVE, red-handled;...
- Page 14 Parts Part No. 238–254, Series A 18 (Ref)
- Page 15 Parts Part No. 238–254, Series A Ref. Ref. Part No. Description Qty. Part No. Description Qty. 237–366 PUMP, Bulldog, 33:1 ratio; 190–411 ADAPTER; 3/4 npt(m); carbon steel See manual 308–417 for parts 190–412 NUT; 1–3/8 unf–2b; carbon steel 238–271 CART, portable 100–721 PLUG, pipe;...
- Page 16 Parts Part No. 238–265, Series A (includes items 1–50) Part No. 238–266, Series A (includes items 1–107) 18 (Ref) (Ref)
- Page 17 Parts Part No. 238–265, Series A (includes items 1–50) Part No. 238–266, Series A (includes items 1–107) Ref. Ref. Part No. Description Qty. Part No. Description Qty. 236–459 PUMP, King, 68:1 ratio; 190–411 ADAPTER; 3/4 npt(m); carbon steel See manual 308–417 for parts 190–412 NUT;...
- Page 18 Category Data Fluid inlet size 1–1/2 in. npt(f) Maximum operating temperature 82 C (180 F) * Sound level King Pumps at 90 psi, 25 cycles/min: 98 dBa Bulldog Pumps at 100 psi, 25 cycles/min: 93 dBa * Sound power level King Pumps at 90 psi, 25 cycles/min: 113 dBa Bulldog Pumps at 100 psi, 25 cycles/min: 108 dBa Wetted parts...
- Page 19 Dimensions Model 238–253 Shown Pump Model Width Across Weight Wheels 238–253 1276 mm (50.25 in.) 724 mm (28.5 in.) 787 mm (31 in.) 660 mm (26 in.) 108 kg (237 lb) 238–257 1276 mm (50.25 in.) 724 mm (28.5 in.) 787 mm (31 in.) 660 mm (26 in.) 113 kg (248 lb) 238–254...
- Page 20 Graco distributor to the original purchaser for use. 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 defec- tive.
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