Graco 965660 Instructions And User Manual
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Graco 965660 Instructions And User Manual

Graco 965660 Instructions And User Manual

Variable ratio mini-cat proportioner
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Instructions - User Guide
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
Air Powered, Falcon™
Variable Ratio Mini-Cat
Variable Ratio Mini-Cat
Variable Ratio Mini-Cat
Variable Ratio Mini-Cat
Proportioner
Proportioner
Proportioner
Proportioner
50 psi (0.345 MPa, 3.5 bar) Maximum Air Inlet Pressure
Model 965660, 1:1 to 4:1 Ratio Range
550 psi (3.8 MPa, 37.0 bar) Maximum Fluid Working Pressure
Model 965661, 2:1 to 8:1 Ratio Range
625 psi (4.3 MPa, 42.0 bar) Maximum Fluid Working Pressure
U.S. Patent No. 5,158,438
U.S. Patent No. 5,209,152
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
COPYRIGHT 2000, Graco Inc.
Graco Inc. is registered to I.S. EN ISO 9001
309239
First choice when
quality counts™
Rev. A

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Summary of Contents for Graco 965660

  • Page 1 Model 965661, 2:1 to 8:1 Ratio Range 625 psi (4.3 MPa, 42.0 bar) Maximum Fluid Working Pressure U.S. Patent No. 5,158,438 U.S. Patent No. 5,209,152 Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441 COPYRIGHT 2000, Graco Inc. Graco Inc. is registered to I.S. EN ISO 9001...
  • Page 2 309239 Instructions - Parts List...

  • Page 3: Table Of Contents

    Flushing the System ....14 Graco Phone Number ..... . . 34 Starting the Pump .

  • Page 4: Symbols

    Symbols Symbols Symbols Symbols Symbols Warning Symbol Warning Symbol Warning Symbol Warning Symbol Caution Symbol Caution Symbol Caution Symbol Caution Symbol WARNING CAUTION This symbol alerts you to the possibility of serious injury This symbol alerts you to the possibility of damage to or or death if you do not follow the instructions.

  • Page 5: Warnings

    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. Use only genuine Graco parts and accessories.

  • Page 6: Pressurized Equipment Hazard

    WARNING WARNING WARNING WARNING WARNING PRESSURIZED EQUIPMENT HAZARD Fluid dispensed from the spray gun, leaks or ruptured components can splash in the eyes or on the skin and cause serious injury. • Do not point the valve at anyone or at any part of the body. •...

  • Page 7: Fire And Explosion Hazard

    PLURAL COMPONENT MATERIAL HAZARD Graco does not manufacture or supply any of the reactive chemical components that are used in this equipment and is not responsible for their effects. Because of the vast number of chemicals that could be used and their varying chemical reactions, the buyer and user of this equipment should determine all facts relating to the materials used, including any of the potential hazards involved.

  • Page 8: Specifications

    1.1 GPM (4.2 primary pump compared to the volume of fluid of the liter/min). The minimum volumetric ratio for Model secondary pump. 965660 is 1:1 and the combined output at that setting is 0.7 GPM (2.6 liters/min). Output Volume Stall Pressure at...
  • Page 9 309239 Instructions - Parts List Catalyst TI0740A Figure 1 - Typical Installation for One Color System Color 1 Catalyst Color 2 TI0740A Figure 2 - Typical Installation for Two Color System Installation...

  • Page 10: Connect The Air Supply Line

    Use only genuine Fire and Explosion Hazard Graco parts and accessories. Before operating the system, ground it as explained below. Also read the Fire or Explosion Hazard section In the air line, install an air filter to remove harmful dirt on page 7.

  • Page 11: Ratio Adjustment

    Some reducers have very little ability to lubri- cate and many cause seals to dry out. To pro- long the seal life, be sure your pump seals are compatible with the base’s reducer. Contact your Graco representative for the correct seals to use. Ratio Adjustment...

  • Page 12: Calculating The Scale Setting

    Ratio Adjustment Calculating the Scale Setting Calculating the Scale Setting Calculating the Scale Setting Calculating the Scale Setting Ratio Setting for Model 965660 Volumetric Ratio Ratio Setting The scale setting is determined either from the appropri- ate chart or by using the formulas below.

  • Page 13: Operation

    309239 Instructions - Parts List Operation Operation Operation Operation Pressure Relief Procedure Pressure Relief Procedure Pressure Relief Procedure Pressure Relief Procedure Flushing Flushing Flushing Flushing WARNING WARNING Pressurized Equipment Hazard To reduce the risk of fire, explosion, and serious injury from static sparking and splashing, be sure to follow The system pressure must be manually relieved to pre- these precautions before and during system flushing:...

  • Page 14: Flushing The System

    Operation Flushing the System Standard Operation Flushing 1. Put the pump intake hoses into a 5 gallon (20 liter) Use the solvent valves to flush contaminants and mixed fluids from the mixer manifold, hose and spray gun. Fol- container of a compatible solvent. Refer to the fluid low the procedure, below.
  • Page 15 309239 Instructions - Parts List 4. Open the sampling valve on the secondary pump 8. Open the mixer manifold. Check the ratio; make side approximately three turns. Open the sampling sure the pressure is within 20% of your normal valve on the primary pump side one turn. This will operating pressure.

  • Page 16: Two Color Flushing

    Operation Two Color Flushing 8. Place a grounded waste container under the sam- pling valves. When using a two color system, follow the procedure below to obtain good color change results. Refer to Fig- ure 2 on page 9. 9. Slowly open the resin sampling valve (E) located on the mix manifold (F) and allow the fluid to drain until 1.

  • Page 17: Troubleshooting

    309239 Instructions - Parts List Troubleshooting Troubleshooting Troubleshooting Troubleshooting Troubleshooting Techniques Troubleshooting Techniques Troubleshooting Techniques Troubleshooting Techniques For example, the secondary pump pressure, as read on the gauge, is low and sluggish during the pump change- over. The most likely problem is a binding primary WARNING pump.

  • Page 18: Troubleshooting Chart

    Troubleshooting Troubleshooting Chart Troubleshooting Chart Troubleshooting Chart Troubleshooting Chart Problem Cause Solution The system will not run or it stops while Air pressure or volume is too low. Increase the air pressure. Check the air running. compressor. Air line or an air valve is closed or Open or clean the air line or air valve as restricted.

  • Page 19: Service

    Lubricate the Mini-Cat proportioner’s main pivot beam 1. With the four adjusting knobs loose, install the cata- periodically with Graco Gear Reducer Oil. lyst pump assembly from the front of the Mini-Cat proportioner. Slide the mounting plate between the Service instructions are in the manuals for the separate rails and the frame.

  • Page 20: Air Motor Service

    Service Air Motor Service Air Motor Service Air Motor Service Air Motor Service Throat Packing Disassembly Proportioning Pump Removal 1. Follow the procedure on page 19. 2. Remove the air motor cover (69). See Figure 5. 3. Disconnect the air motor (1) from the displacement pump, as explained in displacement pump manual 307944.

  • Page 21: Cylinder And Piston Disassembly

    309239 Instructions - Parts List Cylinder and Piston Disassembly Cylinder and Piston Reassembly Proportioning Pump Removal 1. Grease the large o-ring (22) and the two small 1. Follow the procedure o-rings (34) and install them on the top cylinder cap on page 19.

  • Page 22: Actuator Valve Disassembly

    Service Actuator Valve Disassembly Actuator Valve Reassembly Proportioning Pump Removal 1. If the o-ring (24) was removed, it must be installed 1. Follow the procedure from the inside of the top cap (5). Lubricate the on page 19. Cyl- o-ring. See Figure 6. Reinstall the top cap. See inder and Piston Reassembly 2.
  • Page 23 309239 Instructions - Parts List Lubricate with grease Torque to 14–17 in-lb (1.6–1.9 N•m) Torque to 60–80 in-lb (6.8–9.0 N•m) Grease inner wall Long end of pin must point toward inside of motor Torque to 35–45 in-lb (4.0–5.1 N•m) Chamfer faces down into o-ring (3g). 17 (REF) 8760D Figure 6 - Air Motor...

  • Page 24: Director Valve Disassembly

    Service Director Valve Disassembly Director Valve Reassembly Proportioning Pump Removal 1. Follow the procedure 1. Install the valve gasket (13) and plate (8) on the cyl- on page 19. inder (2). Be sure the surface of the plate facing out is free of scratches or damage.
  • Page 25 309239 Instructions - Parts List 8759B Torque to 4–6 in-lb (0.5–0.7 N•m) Lubricate with grease Grease inside diameter Clips (3f) must be installed from inside of housing (3a) Torque to 14–17 in-lb (1.6–1.9 N•m) Lips point toward center of spool Figure 7 - Director Valve Service...

  • Page 26: Parts

    Parts Parts Parts Parts Parts Model 244143 Air Motor Model 244143 Air Motor Model 244143 Air Motor Model 244143 Air Motor Ref. Ref. No. Part No. Description Qty. No. Part No. Description Qty. 112106 O-RING; buna-N 194715 CYLINDER, motor 112107 O-RING;...
  • Page 27 309239 Instructions - Parts List See parts on page 25 REF 17 TI0743A Figure 8 - Air Motor Parts Parts...

  • Page 28: Models 965660 And 965661 Variable Ratio Mini-Cat Proportioner

    Parts Models 965660 and 965661 Variable Ratio Mini-Cat Proportioner Models 965660 and 965661 Variable Ratio Mini-Cat Proportioner Models 965660 and 965661 Variable Ratio Mini-Cat Proportioner Models 965660 and 965661 Variable Ratio Mini-Cat Proportioner Ref. Part Ref. Part Number Description Qty.
  • Page 29 309239 Instructions - Parts List 72 39 76 22 27 33 REF 51 40, 77 16, 19 40, 77 18 57 35 55 REF TI0720A TI0720A 28 REF NOTE: Also see the parts drawing on page 30. TI0722A Figure 9 - Variable Ratio Mini-Cat Proportioner Parts...
  • Page 30 Parts REF 39 TI0721A See Detail A 72 REF 70 REF REF 68 9, 79, 80 DETAIL A 38, 77 30, 75 Apply sealant to the outside of the bearing and inside of connecting rod before assembling Apply lubricant and torque to 20–25 ft-lb ( N•m) TI0721A Figure 10 - Variable Ratio Mini-Cat Proportioner 309239 Instructions - Parts List...

  • Page 31: Accessories

    309239 Instructions - Parts List Accessories Accessories Accessories Accessories Siphon Extension Color Selector Manifold Part No. 168458 Part No. 948025 For siphon feeding paint into the inlet of the master For use as a two color selector manifold. Has porting for pump.

  • Page 32: Technical Data

    Maximum pump operating temperature ....180° F (82° C) Air to fluid pressure ratio ......Model 965660 — 7:1 to 11:1 Model 965661 —...
  • Page 33 309239 Instructions - Parts List Notes Notes Notes Notes ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Technical Data...

  • Page 34: Graco Standard Warranty

    Graco distributor to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, 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 defective.

This manual is also suitable for:

965661

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