Page 2 - Contents
2 309790ZAA Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . 6 Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Major Components . . . . . . . . . . . . . . . . . . . ....
Page 4 - Warnings; Warning
Warnings 4 309790ZAA Warnings Warning Skin Injection Hazard Spray from the gun, hose leaks, or ruptured components can inject fluid through skin and cause extremely serious injury, including need for amputation. Fluid splashed in the eyes or on skin can cause serious injury. • Fluid injected into sk...
Page 6 - Theory of Operation; Use; Ratio Proportioning; Feed Systems - Feed Pumps; Feed Systems - Alternative Feed Supplies
Theory of Operation 6 309790ZAA Theory of Operation Use The 8900 Proportioner is used with two component materials where one or both components is high viscos-ity. This is typically found in the sealant and adhesive industry, where special requirements for loading and pumping necessitate the use of ...
Page 7 - Pump Fluids to the Mixer
Theory of Operation 309790ZAA 7 Pump Fluids to the Mixer Fluid is pumped through the proportioner to a mix cham-ber or to a 2-component dispense gun, where compo-nent A and component B are first introduced before being mixed with a static mixer. A fluid injector nozzle/check valve injects component ...
Page 8 - Models
Models 8 309790ZAA Models Refer to form 684041 for selection information. Model Description 890-D Power Valved Passive Propor tioner Code A Proportioner Selection (“A” Cyl. / “B” Cyl.) Module Number 1 1:1 Fixed (1000/1000) 570371 2 2:1 Fixed (1000/500) 570372 3 2.5:1 Fixed (250/100) 570373 4 4:1 Fix...
Page 10 - Installation; Typical Installation
Installation 10 309790ZAA Installation Typical Installation Figures 1-3 are only guides for selecting and installing system components and accessories. Contact your Graco distributor for assistance in designing a system to suit your needs. Location Position the feed modules so the pump and ram are e...
Page 12 - Ground
Installation 12 309790ZAA Ground Pump: use the ground wire and clamp (supplied). There are two styles of ground connections on pump air motors. If you have the ground screw (a) shown in F IG . 4 (King air motor only), order part no. 222011 ground wire, ring terminal, and clamp assembly (b). To insta...
Page 13 - Flush
Installation 309790ZAA 13 Flush • The equipment was tested with light, soluble oil. Flush the system before loading material to avoid contamination. • Flush at the lowest pressure possible and check connectors for leaks. To flush the system: 1. On the ram-mounted component A supply units, you must r...
Page 14 - Setup; Adjust ratio
Setup 14 309790ZAA Setup Set the Ratio (variable ratio models only) Adjust ratio The ratio of this unit is produced partially by the differ-ence in the area of the metering cylinders and par tially by the position of the adjustable fulcrum point in the Uni-bar linkage assembly. With the fulcrum poin...
Page 15 - Output Charts/Ratio Settings
Setup 309790ZAA 15 Output Charts/Ratio Settings 8900 Proportioner, 1:1 - 4:1 Variable Ratio Mix Ratio by Volume Scale Setting Minor Stroke 1 5.63 3.00 1.5 7.13 2.00 2 8.13 1.50 2.5 8.85 1.20 3 9.38 1.00 3.5 9.80 0.86 4 10.13 0.75 0 2 4 6 8 10 12 Mix Ratio by Volume Setting in Inches from Pivot or Mi...
Page 18 - Before You Load Material
Setup 18 309790ZAA Before You Load Material 1. Check fluid and air lines and tighten if necessary. 2. Make sure there is a minimum overhead clearance of 110 in. (279 cm) for 55 gallon supply. 3. Fill air line lubricator for the 8900 Proportioner mod-ule with SAE 10 W non-detergent oil (not included)...
Page 19 - Load Component A
Setup 309790ZAA 19 Load Component A 1. Make sure all air regulators on proportioner module are fully closed. 2. Open the main air supply shutoff valve (A), F IG . 8. 3. Place the ram lever (P-F IG . 10) in the UP position. 4. Slowly turn the ram air regulator (R) clockwise until the ram begins risin...
Page 20 - Prime Pump A
Setup 20 309790ZAA Prime Pump A 1. Place a waste container under the pump bleed valve located behind the displacement pump outlet, F IG . 11. Using an adjustable wrench, open the bleed valve counterclockwise 1/3-1/2 turn. 2. Slowly open the component A air motor shutoff valve (G), F IG . 7. Make sur...
Page 21 - Load Component B; Pneumatic Pail Ram and Piston Pump
Setup 309790ZAA 21 Load Component B Follow the procedure for the type of supply equipment being used. Pneumatic Pail Ram and Piston Pump 1. Close all air regulators and air valves. 2. Set the pail ram air regulator (D) to 40 psi (0.28 MPa, 2.8 bar), F IG . 12. 3. Push the ram directional lever (C) t...
Page 23 - Pressure Tank with 15:1 Booster
Setup 309790ZAA 23 Pressure Tank with 15:1 Booster 1. Relieve tank pressure before opening. 2. Remove the pressure tank lid and any items shipped inside the tank. Make sure the tank is clean, or use the liner supplied. 3. Be sure the desiccant air dryer is mounted in the component B tank air supply ...
Page 24 - Prime with Component B
Setup 24 309790ZAA Prime with Component B 1. Place a waste container under the pump bleed valve located behind the displacement pump outlet, F IG . 16. Using an adjustable wrench, open the bleed valve counterclockwise 1/3-1/2 turn. 2. Slowly open the component B air motor shutoff valve (E), F IG . 1...
Page 25 - MD2 Disposable Mixer Gun Models; All Models
Setup 309790ZAA 25 MD2 Disposable Mixer Gun Models Follow steps 10-12. 10. Fit the hose to the gun. Trigger the gun into a waste container. 11. Open the component B feed air shutoff valve (E-F IG . 15). Component B will feed through the metering cylinder to the mix gun. 12. When bubble free material...
Page 27 - Operation; Pressure Relief Procedure
Operation 309790ZAA 27 Operation Pressure Relief Procedure 1. Purge mixed material if necessary. See page 29. 2. Close the main air shutoff valve (A), F IG . 18. 3. If a component B pressure tank is used, open its vent (refer to page 23). 4. Hold a metal part of the gun firmly to the side of a groun...
Page 28 - Dispense Mixed Material; Adjust the Flow Rate
Operation 28 309790ZAA Dispense Mixed Material 8900 Proportioner with Static Mix Chamber Kits 1. Load the material. See page 19. 2. On the variable ratio machine, set ratio (see page 14). On the fixed ratio machine, proceed to step 3. 3. Open the pump A and pump B air shutoff valve (S), F IG . 20. 4...
Page 30 - Changing Component A Drum
Operation 30 309790ZAA Changing Component A Drum When the ram plate is extended fully to the bottom of the drum and the pump begins to cavitate, you need to change the drum. It is recommended that you check and refill the component B at the same time. 1. Close the air motor shutoff valve. 2. With th...
Page 31 - Changing Component B Pail
Operation 309790ZAA 31 Changing Component B Pail If you are using a ram and pump to supply component B, the procedure to change the pail is the same as changing the Component A drum except that you use the controls on the back of the pail ram. Pressure Relief Procedure (For component B tank models o...
Page 33 - Adjust Ratio on Variable Ratio Machine
Operation 309790ZAA 33 Adjust Ratio on Variable Ratio Machine The ratio of this unit is determined partially by the differ-ence in the area of the metering cylinders and par tially by the position of the adjustable fulcrum point in the Uni-bar linkage assembly. With the fulcrum in the center, (next ...
Page 34 - Daily Procedures; Daily Start-up Procedure; General Ratio Check Procedure
Operation 34 309790ZAA Daily Procedures Daily Start-up Procedure 1. Perform daily maintenance operations, including: a. Check oil level in main air lubricator. b. Drain any water from filter in main air line. c. Tighten pump packing nuts (daily the first week, weekly thereafter). d. Visually inspect...
Page 36 - Troubleshooting; What the fluid gauges tell you
Troubleshooting 36 309790ZAA Troubleshooting 8900 Proportioner Operating Pressures There are four fluid pressure gauges on a typical 8900 Proportioner system. They are mounted on: • Component A inlet block • Component B inlet block • Component A outlet block • Component B outlet block What the fluid...
Page 37 - Air Supply Troubleshooting Chart
Troubleshooting 309790ZAA 37 Air Supply Troubleshooting Chart During normal operating conditions, the feed pump (A and B) air motors are filled with air almost instanta-neously on both changeovers. However, if the feed pump air supply is restricted, it can take significantly longer for air to fill t...
Page 38 - Pump Cavitation
Troubleshooting 38 309790ZAA Pump Troubleshooting Overview Pump Cavitation Under normal operation, when the feed pump pressures are balanced, component A and component B outlet pressures are consistent. Some up or down adjustments in feed pressures will be necessary to keep the pumps’ outlet pressur...
Page 39 - Troubleshooting Guide: Feed pumps
Troubleshooting 309790ZAA 39 Troubleshooting Guide: Feed pumps Problem Cause Solution Erratic feed pump speed. Pump cavitation. Bleed air from pump. Pumping too fast. Turn down air pressure regulator. Improper pump loading. Increase ram down pressureRam valve not in down position. Pump lower not per...
Page 40 - Troubleshooting Guide: 8900 Proportioner
Troubleshooting 40 309790ZAA Troubleshooting Guide: 8900 Proportioner Problem Cause Solution Inconsistent material mix Material inlet pressures are not set correctly. Erratic feed pump. Follow flow rate procedures and ram feed pump troubleshooting guide. Mix elements not assembled cor-rectly or need...
Page 42 - Component B Injector; Preventive Maintenance
Troubleshooting 42 309790ZAA Component B Injector In most dispense systems, an injector is included in the component B fluid line. This injector adds back pressure to the system and provides the necessary pressure bal-ance between component A and component B to achieve the proper ratio and mix. If t...
Page 43 - Service and Repair
Service and Repair 309790ZAA 43 Service and Repair Repair the Cylinder (Fixed Ratio) 1. Disconnect hose (17) on cylinder end manifold, F IG . 29. 2. Remove guard tube (116). 3. Loosen and remove 4 locknuts (30). 4. Loosen nut (10) on coupling (11) and disconnect pump rod from coupling. 5. Pull on cy...
Page 45 - Replace Air Valve
Service and Repair 309790ZAA 45 Replace Air Valve 1. Unscrew 2 socket head cap screws (311), F IG . 33. 2. Pull complete air valve assembly off cylinder and connecting rod assembly. 3. Remove retaining ring and plate off end and pull rod through. 4. Remove retaining ring off appropriate air valve (3...
Page 46 - Disassemble Fluid Valve
Disassemble Fluid Valve 46 309790ZAA Disassemble Fluid Valve 1. Relieve pressure and turn off feed supply units. Close air valve. 2. Remove valve assembly from 8900 cylinder. Take off hose (17), union (9), fitting in (5), fitting out (5). See F IG . 31. 3. Remove 4 socket head cap screws (415, F IG ...
Page 48 - Parts; 900 Proportioner, Fixed Ratio
Parts 48 309790ZAA Parts 8900 Proportioner, Fixed Ratio Item 7 Item 14 Part Number Fixed Ratio Assembly No. 57 03 6 7 57 03 6 9 57 03 6 6 24 65 5 8 C24 145 57 03 6 6 57 0367 Quantity 1:1 570371 2 1:1 24C972 2 2:1 570372 1 1 2.5:1 570373 1 1 4:1 570374 1 1 5:1 570375 1 1 9:1 246557 1 1 10:1 570376 1 ...
Page 50 - 900 Proportioner, Variable Ratio; Top View
Parts 50 309790ZAA 8900 Proportioner, Variable Ratio Item 1 Item 2 Part Number Variable Ratio Assembly No. 57 03 67 57 03 69 57 03 66 57 03 69 57 03 66 Quantity 1:1 - 4:1 570377 2 2:1 - 8:1 570378 1 1 5:1 - 20:1 570380 1 1 Ref. No. Part No. Description Qty. 1 CYLINDER; see table above and page 52 2 ...
Page 52 - Cylinder Assemblies
Parts 52 309790ZAA Cylinder Assemblies (ref. nos. 7 and 14 FR, 1 and 2 VR) Part No. 246558 Model 246557 only Part No. 570366 Models 570373 and 570374 only Part No. 570367 Models 570372, 570375, and 570377 only Part No. 570369 Models 570371 and 570376 only Part No. C24145 Models 570371,570372, 570374...
Page 53 - Limit Valve
Parts 309790ZAA 53 Limit Valve (ref. no. 26 FR, 38 VR) Part No. C24014 Ref. No. Part No. Description Qty. 301 C20439 RING, retaining ext 4 302 C24008 WASHER 2 303 C20407 RING, retainer 2 304 C22064 VALVE 2 305 C24007 SPACER 1 306 C24051 MANIFOLD 1 307 100079 WASHER, lock, spring 2 308 C19977 SCREW, ...
Page 54 - Air Control
Parts 54 309790ZAA Air Control (ref. no. 41 FR, 62 VR) Part No. 949666 Ref. No. Part No. Description Qty. 201 626086 BRACKET 1 202 624225 AIR MANIFOLD 1 203 157191 ADAPTER; 3 204 206197 AIR REGULATOR; 1/2 x 3/4 npt 2 205 100840 ELBOW; 1/4-18 npt 2 206 160430 GAUGE, air pressure 2 207 1554701 UNION, ...
Page 56 - 0:1 President on 5 Gallon Ram
Parts 56 309790ZAA Pump Feed Module Selection for Component A or Component B 20:1 President on 5 Gallon Ram (See Graco Manuals 308026 and 306838) Module No. 965571 Ref. No. Part No. Description Qty. 4 237207 PUMP, President, 20:1 1 13 222812 PLATE, wiper, 5 gallon 1 22 102556 RIVET, blind 4 24 15682...
Page 58 - 4:1 Senator on 5 Gallon Ram
Parts 58 309790ZAA 34:1 Senator on 5 Gallon Ram (See Graco Manuals 308026 and 306838) Module No. 965597 Ref. No. Part No. Description Qty. 1 222769 PUMP, senator (4.5 cm) 1 2 100468 SCREW, cap, hex head 4 3 100133 WASHER, lock 4 4 222812 PLATE, wiper, 5 gallon 1 7 101154 PIN, driv-lok 1 10 102556 RI...
Page 60 - 3:1 Monark on 5 Gallon Ram
Parts 60 309790ZAA 23:1 Monark on 5 Gallon Ram (See Graco Manuals 308026 and 306838) Module No. 570142 Ref. No. Part No. Description Qty. 1 184147 SHIELD, 5 gallon ram (not shown) 1 2 206994 FLUID, TSL 8 oz bottle (not shown) 1 4 222782 PUMP, Monark 1 11 222812 PLATE, wiper, 5 gallon 1 19 156823 UNI...
Page 70 - Mix Kit Selection
Parts 70 309790ZAA Mix Kit Selection Cartridge Fill Medium Viscosity Wide Ratio Module No. 570248 Ref. No. Part No. Description Qty. 4 626748 BRACKET, mount disp valv C24342 1 5 552204 ACTUATOR, air, 8900 metered shot 1 6 C30021 BOLT, u 1 10 504327 HOSE, nylon 3/4 in. id 4 11 504621 COUPLING, hose 4...
Page 79 - High Volume Static Mix Manifold
Parts 309790ZAA 79 High Volume Static Mix Manifold Module No. 570391 Ref. No. Part No. Description Qty. 1 157785 UNION, swivel 2 2 512151 VALVE, ball 2 3 175013 NIPPLE, pipe 4 4 235497 VALVE, check 2 5 160327 UNION, adapter, 90° 2 6 100615 BUSHING, hex steel 1 7 501392 FITTING, cross 3/4 in. npt cs ...
Page 81 - Stanchion
Parts 309790ZAA 81 Stanchion Module No. 570071 Ref. No. Part No. Description Qty. 1 167636 BASE, ram 1 2 167639 BRACKET, cylinder 4 3 176629 CYLINDER, ram 1 4 166552 CAP, cylinder 1 4 3 2 1
Page 82 - Boom Assembly
Parts 82 309790ZAA Boom Assembly Module No. 246589 Ref. No. Part No. Description Qty. 1 947039 FRAME, boom, swivel, 55 gal 1 2 158383 FTIING, union, adapter, straight 1 3 157262 WASHER, plain 4 4 158555 NIPPLE, reducing 2 5 156971 NIPPLE, short 2 6 155495 UNION, swivel, 90° 1 7 156175 FITTING, union...
Page 84 - Technical Data
Technical Data 84 309790ZAA Technical Data Maximum system working pressure . . . . . . . . . . . . . . . . . 2000 psi (13.8 MPa, 138 bar) Maximum air input pressure . . . . . . . . . . . . . . . . . . . . . . . 100 psi (0.7 MPa, 7 bar) Main air inlet size (8900 Proportioner) . . . . . . . . . . . . ...
Page 86 - Graco Standard Warranty
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. Original instructions. This manual contains English. MM 309790 Graco Headquarters: Minneapolis Int...
