Graco A Series Instructions-Parts List Manual

33:1 ratio bulldog carbon steel cart-mounted zinc spray package with dura-flo 750 displacement pump

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INSTRUCTIONS-PARTS LIST

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INSTRUCTIONS

33:1 RATIO BULLDOG CARBON STEEL

Cart-Mounted Zinc Spray Package

WITH DURA-FLO

Part No. 238–255, Series A

207 bar (3000 psi) Maximum Working Pressure

6.3 bar (90 psi) Maximum Air Inlet Pressure

Part No. 238–588 Zinc Circulation Kit

Converts a 33:1 Bulldog Airless Sprayer

to a Zinc Sprayer

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

750 DISPLACEMENT PUMP

Graco Inc. is registered to I.S. EN ISO 9001

308–629

Rev. A

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Summary of Contents for Graco A Series

Page 1 6.3 bar (90 psi) Maximum Air Inlet Pressure Part No. 238–588 Zinc Circulation Kit Converts a 33:1 Bulldog Airless Sprayer to a Zinc Sprayer 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 system as explained below. Also read NOTE: Always use Genuine Graco Parts and Acces- the section FIRE OR EXPLOSION HAZ- sories, available from your Graco distributor. Refer to ARD on page 4.
Page 6 Setup Supplied Components The air relief valve (211) opens automatically to prevent overpressurization of the pump. Refer to Fig. 2. The air line lubricator (43) provides automatic air motor lubrication. WARNING The fluid return line valve (205) is required in A red-handled bleed-type master air valve (35) and your system to relieve fluid pressure in the hose a fluid return line valve (205) are supplied.
Page 7 Setup SUPPLIED COMPONENTS INCLUDED IN CIRCULATION KIT 238–588 COMPONENTS YOU MUST SUPPLY Pump Electrically Conductive Air Supply Hose 205 Fluid Return Line Valve Cart Bleed-Type Master Air Valve 206 Fluid Return Line Pump Intake Bushing (for accessories) 209 Fluid Return Tube Suction Hose Air Line Moisture Trap and Drain Valve 211 Air Relief Valve (partially hidden)
Page 8 Installing Kit 238–588 NOTE: Model 238–255 Sprayer is shipped with the NOTE: Apply thread sealant to all male threads, Zinc Circulation Kit 238–588 installed, so this proce- except at swivel connections. dure is unnecessary. However, if you have ordered the kit separately to convert a 33:1 Bulldog airless sprayer into a zinc sprayer, you must perform this procedure.
Page 9 Installing Kit 238–588 Remove the ball valve (9) from the fluid filter (T, see Fig. 3) and reinstall here. Fig. 4...
Page 10 Pressure Relief Procedure Packing Nut/Wet-Cup Before starting, fill the packing nut (F) 1/3 full with WARNING Graco Throat Seal Liquid (TSL) or compatible solvent. See Fig. 5. INJECTION HAZARD The system pressure must be manually relieved to prevent the system from WARNING starting or spraying accidentally.
Page 11 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 To reduce the risk of serious injury whenever you injury or equipment damage. are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10.
Page 12 Operation Shutdown and Care of the Pump WARNING WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the To reduce the risk of serious injury whenever you Pressure Relief Procedure on page 10. are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10.
Page 13 Operation Bleed-Type Master Air Valve 35 Red-Handled Bleed-Type Master 103 Electrically Conductive Fluid Supply Hose (for accessories) Air Valve (required, for pump) 104 Electrically Conductive Fluid Whip Hose Packing Nut 37 Air Line Male Coupler 205 Fluid Return Line Valve Suction Hose 38 Air Line Female Coupler 206 Fluid Return Line...
Page 14 Parts Part No. 238–255, Series A 18 (Ref)
Page 15 Parts Part No. 238–255, Series A Ref. Ref. Part No. Description Qty. Part No. Description Qty. 237–366 PUMP, Bulldog, 33:1 ratio; 113–428 SCREW, hex socket; See manual 308–417 for parts 1/4–20 x 25 mm (1 in.) long 238–271 CART, portable 102–040 NUT, lock, hex;...
Page 16 Notes...
Page 17 Notes...
Page 18 Technical Data Category Data Maximum fluid working pressure 207 bar (3000 psi) Maximum air input pressure 6.3 bar (90 psi) Ratio 33:1 Pump performance data See pump manual 308–417 Air consumption data See pump manual 308–417 Air inlet size 3/4 npsm(f) Fluid outlet size (at fluid shutoff valve) 3/8 npt(m) Fluid inlet size...
Page 19 Dimensions Pump Model Width Across Weight Wheels 238–255 1276 mm (50.25 in.) 724 mm (28.5 in.) 787 mm (31 in.) 660 mm (26 in.) 106 kg (234 lb)
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.

This manual is also suitable for:

238-255 238-588