Graco 3A2257C- Manuals

Page 2 - Warnings; WARNING

Warnings 2 3A2257C Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-tion point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manua...

Page 4 - Pressure Relief Procedure; Installing the Pump; Grounding; Mounting Pump

Warnings 4 3A2257C Pressure Relief Procedure 1. Stop lube pump. 2. If installed, close oil supply valve located upstream from pump. 3. If installed, open drain valve located downstream from the pump. 4. Slowly crack open fluid line fittings to relieve pres-sure. Installing the Pump Grounding Ensure ...

Page 5 - Setup

Setup 3A2257C 5 b. For all installations (whether the tube needs to be trimmed or can be used without trimming), press strainer onto end of the suction tube until it “bottoms” (F IG . 3). 4. Orient pump so the roller bearing on the bottom of the pump is aligned with the cam inside the reser-voir. 5....

Page 6 - Suction Fed Models (F; Gravity Fed Models (F

Setup 6 3A2257C Suction Fed Models (F IG . 4) 1. Remove the sight well plug (1) and outlet plug (5). Discard outlet plug (5). 2. Fill the sight well (2) to the top with appropriately fil-tered oil. 3. Operate the hand priming assembly (3) until the oil level drops below the end of the drip tube (4)....

Page 7 - Pressure Fed Models (F

Setup 3A2257C 7 Pressure Fed Models (F IG . 6) NOTE: In the following instructions, the fill line refers to the inlet line. 1. Remove and discard the inlet plug (1) and outlet plug (5). 2. Apply thread sealant (user supplied) to fill line fitting. 3. Connect fill line to inlet (2). 4. Torque fill li...

Page 8 - Adjusting the Pump

Setup 8 3A2257C Connecting Lube Lines to Pump: Suction, Gravity and Pressure Fed Pump Models Only NOTE: The lube line refers to the outlet line supplying lubricant to the lubrication points. 1. Apply thread sealant (user supplied) to lube line fit-ting. 2. Connect lube line to pump outlet (6), (F IG...

Page 9 - Calculating Output Capacity

Setup 3A2257C 9 3. For Suction Fed and Gravity Fed models only: With the lubricator operating, count the drops from the drip tube (4) falling into the sight well (2) for one minute. The number of drops seen falling in the sight well equals the amount of oil discharged by the pump. See Specifi-cation...

Page 10 - Specifications; Table 1

Specifications 10 3A2257C Specifications Table 1 Drops per Stroke Table Section of Table Applies to Suction and Gravity Fed Models Only • Allowable viscosity range independent of temperature: 80-5000 SUS. • Strokes/Minute - Maximum - 50; Minimum - 3 • Stroke Length - Maximum 1/2 inch (12.7 mm) † Ref...

Page 11 - Troubleshooting

Troubleshooting 3A2257C 11 Troubleshooting * Oil level in sight well will rise and fall during normal operation. If condition persists refer to Cause/Solution sections. I Problem Cause Solution Pump does not flow Pump stroke is adjusted to zero. Adjust pump stroke for desired out-put. See page 8. Pu...

Page 12 - Maintenance; Sight Well Fills With Oil

Maintenance 12 3A2257C Maintenance Sight Well Fills With Oil The oil level in the sight well (2) will rise and fall slightly during pump operation. Should the oil level in the sight well rise above the drip tube (4): 1. Remove the sight well plug (1). 2. Allow the pump to continue to operate until t...

Page 13 - Technical Data

Technical Data 3A2257C 13 Technical Data * Sensor output will open at 100-200 psi (0.68 MPa, 6.89 bar). Suction, Gravity Pressure Fed Box Lubricator Pump or Shaft Rotation Alarm Pump Maximum Working Pressure US Metric All 3/16” Piston Models 7500 psi 51.7 MPa, 517 bar All 1/4” Piston Models 6000 psi...

Page 14 - Pump Dimensions

Technical Data 14 3A2257C Pump Dimensions Dimension Inches mm A 3.10 76.20 B 1.97 50.04 C 0.50 12.70 D Pump Min. 2.58 Pump Max. 3.18 Pump Min. 65.53Pump Max.78.23 E 5.37 136.40 F Min. 4.14 Max 4.90 Min. 105.20 Max 124.50 G 1.50 38.10 H 0.50 12.70 J 0.50 12.70 K 0.39 9.90 L 0.92 23.37 M 0.28 7.11 N 5...

Page 15 - Gravity Fed; Pressure Fed

Technical Data 3A2257C 15 Gravity Fed Pressure Fed Inlet P A Outlet C D Outlet Inlet A B C D

Page 16 - Suction Fed

Technical Data 16 3A2257C Suction Fed Outlet C D A P N Inlet

Page 17 - Alarm Pump

Technical Data 3A2257C 17 Alarm Pump C D P N Inlet R Return toReservoir 1/4 NPT SensorOutput

Page 18 - Graco Standard Warranty; Graco Information

All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. For patent information, see www.graco.com/patents. Original instructions. This manual contains Eng...