Related Manuals for CAT Pumps 3570 Series
Summary of Contents for CAT Pumps 3570 Series
- Page 1 SERVICE MANUAL 3570 SERIES PLUNGER PUMPS PUMP MODELS INCLUDED 3570 3570S 3570C Product Quality, Reliability and Support You Expect www.catpumps.com...
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Page 2: Table Of Contents
Torque Chart symbol to avoid possible injury or death. Inlet Manifold Screws Torque Sequence Discharge Manifold Screws Torque Sequence Technical Bulletin Reference Chart Notes Diagnosis and Maintenance SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... -
Page 3: General Safety Information
2. Wear mask, goggles or eye protection while operating high-pressure equipment. 3. Obtain a Safety Data Sheet (SDS) and take appropriate safety measures for the liquid being handled. (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps... -
Page 4: General Safety Information And Symbols
3. Do not operate the pump at temperatures higher than the maximum recommended temperatures. 4. Do not use accessories that are not compatible or rated for the pump. SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... - Page 5 1. Fill pump crankcase to specific capacity indicated on data sheet or service manual prior to startup. 2. Cat Pumps premium custom-blend oil is available worldwide in 21-ounce bottles, (single and 12-pack cases), 2.5 gallon jugs (single and 2-pack) or 30 gallon drums. Use of other oils may void the warranty.
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Page 6: Seal & Valve Kits
The seals on our pumps, operating under normal conditions, will perform for a minimum of 1500 hours, with most lasting much longer. The valves typically perform for 3000 hours, with many lasting much longer. Cat Pumps always recommends replacing these items as a kit since components usually wear at about the same rate. -
Page 7: Seal & Valve Kit Pump Diagram
9. Reverse Pliers (PN 30696) 10. 21 mm Combination Wrench 11. Rubber Mallet 12. Oil Bubble Gauge Tool (PN 44050) 13. Lubricating Oil 14. Liquid Thread Sealant (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps... -
Page 8: Servicing The Seals
1.09 Inspect the female adapters for wear or the V-packing cylinder bore on the small end, damage. with the smaller inside diameter facing upwards. push the springs and V-packing assemblies out of the cylinders. SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... - Page 9 1.18 Insert two (2) flat tip screwdrivers on opposite (4) HSH screws from the inlet manifold. wrench to create separation between the sides to pry the manifold away from the manifold and crankcase. crankcase. (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps...
- Page 10 1.27 Remove the low-pressure seal adapters from plungers, wipe plungers clean and apply a wrench to create separation between the the plungers. light oil. low-pressure seal adapters and the seal retainers. SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com...
- Page 11 1.34 Inspect the manifold bores to ensure sealing surfaces are smooth and free from corrosion. (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps...
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Page 12: Plunger Removal
Clean with a wire- barrier slingers located behind the plungers. wheel brush if necessary. Inspect for damage. Loctite and 242 are registered trademarks of the Henkel Corporation. SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... -
Page 13: Plunger Reassembly
220 in-lbs, 18 ft-lbs or 24 Nm. Loctite and 242 are registered trademarks of the Henkel Corporation. (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps... -
Page 14: Manifold And Seal Installation
O-rings. inlet manifold with the grooved sides of the bores are facing upwards. low-pressure seals facing down. Loctite and 242 are registered trademarks of the Henkel Corporation. SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... - Page 15 1.69 Install V-packing spacer with the smaller grooved sides also facing down. facing down into the V-packing cylinders. diameter sides facing down and press them into place. (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps...
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Page 16: Manifold Reassembly
1.76 Install four (4) HSH screws by hand. 1.77 Using a 12 mm hex wrench, tighten hex head screws using appropriate cross-pattern for even alignment. Torque to 480 in-lbs, 40 ft-lbs, or 54 Nm. SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... - Page 17 Torque to 355 in-lbs, 30 ft-lbs, assemblies and that seals are not binding. or 40 Nm. (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps...
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Page 18: Servicing The Valves
2.07 Use needle-nosed pliers to grasp under the head of the bolt to pull the complete valve assemblies loose from the manifold. Lift up and straight out. SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... -
Page 19: Valve Disassembly
NOTICE: Pitting on the valve seat or valve is an indication of cavitation. Review our Cavitation Troubleshooting Support Document for assistance. www.catpumps.com/cavitation-troubleshooting 2.13 Inspect tapered surfaces of valve seats for wear, pitting or damage. (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps... -
Page 20: Valve Reassembly
2.20 Using a rubber mallet, lightly tap spring 2.21 Replace valve seat O-rings into the top of retainers into place. the groove, then backup rings at the bottom. SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... -
Page 21: Valve Installation
2.30 Using a 41 mm hex socket with ratchet, valve plugs. hand. tighten valve plugs. Torque to 1305 in-lbs, 109 ft-lbs, or 148 Nm. Loctite and 242 are registered trademarks of the Henkel Corporation. (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps... -
Page 22: Crankcase Component Inspection
If contamination is suspected, inspect and replace the seals in the pump manifold, then clean out the inside of the crankcase and change the oil. Spot-check the following areas for signs of leaks and contact Cat Pumps or a local distributor for servicing crankcase if needed. Bearing Covers... - Page 23 Crankshaft Oil Seals (Check for leaking oil) Oil Bubble Gauge (Check oil level, color for contamination, leaking oil) Drain Plug (Check for leaking oil) (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps...
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Page 24: Reference Information
Cat Pumps recommends using our custom-blend premium grade hydraulic oil formulated to meet Cat Pumps specifications. For best results, perform an initial oil change after the first 50 hours of operation and every 500 hours thereafter. -
Page 25: Torque Chart
7CP models 35 and 38 Frame Crankcase All 35 and 38 Frame Changes Plunger Pumps DISCHARGE MANIFOLD SCREWS TORQUE SEQUENCE Piston and Plunger Pump All Models Crankcase Capacities (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps... -
Page 26: Notes
Notes SERVICE MANUAL | 3570 Series Plunger Pumps (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com... - Page 27 Notes (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com SERVICE MANUAL | 3570 Series Plunger Pumps...
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Page 28: Diagnosis And Maintenance
For International Inquiries go to www.catpumps.com and navigate to the “Contact” link. ©2022 Cat Pumps. All written and visual data contained in this document reflects the latest product information available at the time of publication. Cat Pumps reserves the right to make changes at any time without notice.
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