Page 2 - Warnings; WARNING
Warnings 2 306642F Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point sym-bol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Addi-tional, product-s...
Page 3 - Installation; Grounding
Installation 306642F 3 Installation Grounding In a low pressure air spray system, static sparking is generally not a problem; however some simple precau-tions should be taken to reduce the risk. Check your local code for detailed grounding instructions for your area and type of equipment. Ground all...
Page 4 - Air and Transfer Lines (F; Install the Pump
Installation 4 306642F Air and Transfer Lines (F IG . 2) The typical installation shown in F IG . 2 is only provided as a guide for selecting and installing required and optional accessories. Be sure all air and fluid accessories are properly sized for your system and are compatible with the fluid y...
Page 5 - Operation; Pressure Relief Procedure; Startup; Clearing Obstructions
Operation 306642F 5 Operation Pressure Relief Procedure 1. Shut off main air supply. 2. Close the air regulator and bleed-type master air valve. 3. Loosen a fluid fitting near the pump outlet to relieve fluid pressure. Startup 1. Turn on the main air supply. 2. Open Air Valve (E) and slowly open the...
Page 6 - Troubleshooting
Troubleshooting 6 306642F Troubleshooting L Problem Cause Solution Pump doesn’t operate Insufficient air supply Be sure adequate volume of air is supplied to pump. See Technical Data on back cover. Check for restriction in air line or closed valves or regulators. Check valve plate held closed by obs...
Page 7 - Repair; Throat Packing Repair (F
Repair 306642F 7 Repair F IG . 4 Throat Packing Repair (F IG . 4) 1. Relieve pressure, page 5. 2. Disconnect air hose and transfer hose. Remove air inlet fittings. 3. Remove pump from inductor plate (20). 4. Unscrew priming piston (13) from connecting tube (A). The priming piston has a 1-3/4 in. hex...
Page 8 - Pump Intake Repair (F
Repair 8 306642F 13. One at a time, install a washer (H), bearing (J), female gland (K), four leather v-packings (L) with lips of the v-packings facing out of the base, male gland (M), spring (N) and retainer (G). 14. Turn retainer in about 3 times. 15. Lubricate connecting tube (A) with light, wate...
Page 9 - Parts
Parts 306642F 9 Parts F IG . 5 Model 205148 Pump, 3:1 Bulldog * Recommended “tool box” spare parts. Keep on hand. Model 205028 Pump, 3:1 Bulldog with inductor * Recommended “tool box” spare parts. Keep on hand. 3/4” npt air inlet 21 8 2” npt(f)fluid outlet 11 18 10 12 17 14 13 19 4, 2 5 1, 3 16 Foll...
Page 10 - Technical Data
Technical Data 10 306642F Technical Data Fluid Pressure Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3:1Air Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 - 100 psi (0.28 - 0.7 MPa, 2.8 - 7 bar)Maximum Working Fluid Pressure . . . . . . . . . . . . . . ...
Page 11 - Notes
Page 12 - Graco Warranty and Disclaimers; Warranty
Graco Warranty and Disclaimers 12 306642F Graco Warranty and Disclaimers Warranty Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and work-manship on the date of sale by an authorized Graco distributor to the original purchaser for use. As pur...