Graco 310543E User's Manual
Contents
1. m 9 Holding the needle chuck remove the nylon nut To reduce the risk of serious injury whenever you 11 washer 10 and packing 13 are instructed to relieve pressure always follow the Pressure Relief Procedure on page 6 10 Remove the air piston 4 from the body and f f carefully remove the quad ring 20 by stretching it 1 Flush the metering valve if possible Relieve the from the groove in the piston On AMV C02078 pressure only remove the second quad ring 21 from the 2 Disconnect the air and fluid hoses Remove the piston MENN Wave TOP NS meuneng 11 Remove the spring 23 not present on AMV 3 Remove the nozzle from the retainer 2 Clean C02078 from the body 1 and inspect the nozzle 12 Remove the needle 6b from the valve body 1 4 Remove the stop screw 7 13 Stand the body 1 on the retainer end and press 5 Turn the nut 8 counterclockwise to unlock and the fluid piston 6a from the body using a dowel remove the retainer 2 and disassemble the Remove the o rings 17 16 and 14 and the retainer as follows back up ring 22 from the piston 8 310543 Service AMV Reassembly This procedure describes how to reassemble the automatic metering valve Refer to Parts information on pages 13 and 14 NOTES The numbers in parentheses in the text refer to reference numbers in the parts drawings and parts lists Repair Kit C02023 is available for AMV Part Nos C02021 C0202. Material Outlet Port 1 8 npt 7967A Fill cartridge with seal fluid item 208 to force fluid through cartridge cap bleed holes during valve shift Fill slowly to allow air to bleed out from piston cavity Accessories Use Only Genuine Graco Parts and Accessories Fluid Nozzles These nozzles fit all automatic metering valves covered in this manual Nozzle Adapter Orifice Size Orifice Size Part No Part No 3 64 in C17008 not required 3 64 Dame 1 2 mm 1 8 npt m 3 32 x 3 8 in C01025 not required C17008 Nozzle 2 4 x 9 5 mm 1 8 npt m 3 32 x 3 8 1 16 in C02048 C17007 EN Mem S Stam a pe C01025 Nozzle 1 16 Diameter fimm ore iH C02048 Nozzle C17007 Adapter Needle Chuck Tool 918482 310543 17 Technical Data Category Data Maximum fluid working pressure 3200 psi 22 0 MPa 220 bar Minimum fluid working pressure 50 psi 0 34 MPa 3 4 bar Viscosity range 3000 to 1 million centipoise Shot size range 0 204 000 Fluid inlet 1 4 npt f C02025 and C02078 1 4 npt f Mounting hole 7 16 20 unf 2B Piston Air operated spring return 14516 055 1g Fluid outlet C02021 C02022 C02026 and C02027 1 8 npt f 18 310543 Dimensions C02021 C02022 and C02025 Metering Valves C02021 Shown 5 50 in max 5 19 in min ne 139 7 mm max 131 8 mm min 7 16 20 x 5 8 in Deep 2 06 in 52 3 mm
3. body 1 while cycling the valve Adjust the piston stroke Disassemble and clean the needle valve if neces sary Fluid or air hose is kinked or blocked Clear or straighten hose Interrupted fluid supply Clear supply line Check supply and refill if necessary Turn on supply pump Insufficient operating air pressure Increase air pressure to 80 psi 0 55 MPa 5 5 bar Clear air line if blocked Worn or damaged parts Disassemble and rebuild the valve Lubricate o rings on installation 310543 7 Service AMV Disassembly a Remove the retaining ring 12 with a retaining ring compression tool This procedure describes how to disassemble the automatic metering valve Refer to Parts information b Place the retainer 2 on a flat surface with the on pages 13 and 14 threaded end up and press the needle seal 6c with a 1 4 in 6 mm dowel to remove the support washer 9 o ring 15 and seal from the cavity NOTE The numbers in parentheses in the text refer to reference numbers in the parts drawings and parts lists NOTE Needle Chuck Tool 918482 is available Order 9 Install the needle chuck tool onto the needle 6b separately See page 17 through the retainer end of the body 1 To disassemble the AMV perform the following proce 7 Remove the air cap 3 from the valve body 1 dure 8 Remove the o rings 19 from the groove in the air cap 3 A WARNING
4. can cause the equipment to rupture malfunction or start unexpectedly and INSTRUCTIONS result in serious injury o 3 C Madii This equipment is for professional use only Read all instruction manuals warnings tags and labels before operating the equipment Use the equipment only for its intended purpose If you are uncertain about usage call your Graco distributor Do not alter or modify this equipment Use only genuine Graco parts and accessories Check the equipment daily Repair or replace worn or damaged parts immediately Do not exceed the maximum working pressure of the lowest rated system component These metering valves have a 3200 psi 22 0 MPa 220 bar Maximum Working Pressure Route the hoses away from the traffic areas sharp edges moving parts and hot surfaces Do not expose Graco hoses to temperatures above 82 C 180 F or below 40 C 40 F Use fluids and solvents that are chemically compatible with the equipment wetted parts See the Technical Data sections of all the equipment manuals Always read the material manufac turer s literature before using fluid or solvent in this equipment Wear hearing protection when operating this equipment Comply with all applicable local state and national fire electrical and other safety regulations TOXIC FLUID HAZARD Hazardous fluids or toxic fumes can cause a serious injury or death if splashed in the eyes or on the skin swallowed or
5. detailed grounding instructions for your area and type of equipment Your system must be connected to a true earth ground 1 Pump ground the pump by connecting a ground wire and clamp as described in your separate pump instruction manual 2 Automatic metering valve ground the metering valve by connecting it to a properly grounded fluid hose and pump 3 Fluid hoses use only electrically conductive fluid hoses 4 Fluid supply container ground according to the local code 5 All solvent pails used when flushing ground ac cording to local code Use only metal pails which are conductive placed on a grounded surface Do not place the pail on a non conductive surface such as paper or cardboard which interrupts the grounding continuity Installation NOTE Read this manual thoroughly before installing the automatic metering valve The metering valve has a tapped hole for mounting making it ideal for automatic systems and for use in multiple manifold high production operations The valve can be supplied by any standard Graco pump 1 Inspect the metering valve for shipping damage If damage is found notify the carrier immediately 2 Attach the meter to its mounting fixture by means of the 7 16 20 tapped mounting hole in the valve body 1 Keep in mind that the height of the valve must be adjustable so either the part or the valve can retract at the same instant that the valve shuts off 3 Connect the actuati
6. psi lt _ 430in 109 mm Material Outlet 1 4 npt Material Inlet 1 4 npt TI0612 310543 19 The Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale 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 warranty applies only when the equipment is installed operated and maintained in accordance with Graco s written recommendations This warranty does not cover and Graco shall not be liable for general wear and tear or any malfunction damage or wear caused by faulty installation misapplication abrasion corrosion inadequate or improper maintenance negligence accident tampering or sub stitution of non Graco component parts Nor shall Graco be liable for malfunction damage or wear caused by the incompatibility of Graco equipment with structures accessories equipment or materials not supplied by Graco or the improper design manufacture installation operation or maintenance of structures accessories equipment or materials not supplied by Graco This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized
7. 0 ELBOW 1 109 C26312 TRIGGER 1 103 C19955 SOCKET HEAD SCREW 4 110 C04083 SPRING 1 104 192331 TUBING 1 111 C20065 ROLL PIN 1 105 C20861 FITTING 10 32 x 1 8 in 1 112 101503 ROLL PIN 1 106 104636 VALVE 1 113 C02040 MOUNTING BLOCK 1 107 C20023 SOCKET HEAD SCREW 1 C02026 Material Inlet Port 1 4 npt Material Outlet Port 1 8 npt 102 Air Inlet Port 1 8 npt 113 80 psi 112 111 110 105 bi 106 109 TIO611 1038 104 107 310543 15 Part No C02027 This AMV is designed to be used with moisture sensitive materials Ref No 201 202 203 204 205 206 207 208 16 Part No c02021 C04104 C26069 C20477 C20479 C19888 C20023 206995 310543 Description AUTOMATIC METERING VALVE CARTRIDGE 2 5 oz END CAP HEX NIPPLE 1 8 npt HEX NIPPLE 1 4 npt 90 REDUCING ELBOW 1 8 x 1 4 npt SCREW cap socket head 7 16 20 x 3 4 in long SEAL FLUID Parts Qty i ll c zer 203 AMV for use with moisture sensitive materials 2 75 in 70 mm approx fill level A Air Inlet Port E 1 8 npt wes 80 psi T x 205 dio i 5 C weg B 20 a AES i p Material gm en Inlet Port E L 1 4 npt NITE mm 201 9 gt
8. 22 and C02025 For the best re sults use all the new parts in the kit when repairing the AMV Parts included in the kit are marked with an asterisk for example 11 See page 13 Repair Kit C02080 is available for AMV Part No C02078 For the best results use all the new parts in the kit when repairing the AMV Parts included in the kit are marked with a symbol for example 111 See page 14 Needle Chuck Tool 918482 is available Order separately See page 17 Clean all the parts thoroughly before reassembling the AMV Check them carefully for damage or wear replacing parts as needed Prior to installation lubricate all seals and o rings with PARKER O LUBE or an equivalent lubricant Check with the material supplier for a compatible lubricant To reassemble the AMV perform the following proce dure 1 Install the o rings 17 T 16 T and 14 T and the back up ring 22 T on the fluid piston 6aT Stand the body 1 on the retainer end Press the fluid piston into the body using a dowel Reassemble the needle valve 61 and air piston 4 as follows a Attach the needle chuck to the needle 6b and insert the needle through the fluid piston 6a threaded end first 13 14 b Install the quad ring 20 1 on the air piston 4 by carefully stretching the quad ring into the groove in the piston On AMV C02078 only install the second quad ring 211 on the piston Install the spring 23 not present
9. Graco distributor for verification of the claimed defect If the claimed defect is verified Graco will repair or replace free of charge any defective parts The equipment will be returned to the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE Graco s sole obligation and buyer s sole remedy for any breach of warranty shall be as set forth above The buyer agrees that no other remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or consequential loss shall be available Any action for breach of warranty must be brought within two 2 years of the date of sale GRACO MAKES NO WARRANTY AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES EQUIPMENT MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO These items sold but not manufactured by Graco such as electric motors switches hose etc are subject to the warranty if any of their manufacturer Graco will provide purchaser
10. Instructions Parts List G GRACO MODEL 482 310543E Automatic Metering Valves e Used to provide precise dispense of medium to high viscosity sealants and adhesives in a non hazardous location 3200 psi 22 0 MPa 220 bar Maximum Fluid Working Pressure Part No C02021 Series B Model 482 B 7 8 18 uns externally threaded fluid inlet boss and 7 16 20 unf mounting hole 1 4 npt f material inlet 1 8 npt f material outlet Part No C02022 Series C Model 482 C 7 16 20 unf mounting hole 1 4 npt f material inlet 1 8 npt f material outlet Part No C02025 Series B Model 482 E 7 16 20 unf mounting hole 1 4 npt f material inlet 1 4 npt f material outlet Part No C02078 Series B Model 482 DA with double acting air cylinder 7 16 20 unf mounting hole 1 4 npt f material inlet 1 4 npt f material outlet Part No C02026 Model 482 HA same as Part No C02022 with trigger actuated pistol grip handle Part No C02027 Model 482 MS for moisture sensitive materials same as Part No C02021 with seal fluid reservoir and plugged 7 16 20 mounting hole Important Safety Instructions 4 Read all warnings and instructions in this manual M Save these instructions U S Patent Nos 3 160 331 and 3 132 775 PROVEN QUALITY LEADING TECHNOLOGY Table of Contents Warnings 4a torn set ete Lu EHE etti eds 3 SOM D s smi niet cue dps ntu d dm ute adie ura ade 5 Ground the System ssseuuuuu
11. Mounting Hole Air Supply Inlet AL i ui npt Minimum N a X teg Outlet eS 7 C02021 and ees ASS P L C02022 f f iae i j j 1 4 npt p Z Ra C02025 ay Ium WA L EN 7 8 18 uns 2A Thread for Mounting M C02021 only r 3 00 in 76 2 mm Material Inlet 1 4 npt TI0613 C02078 Metering Valve 6 80 in max 6 49 in min A 173 mm max 165 mm min 7 16 20 x 5 8 Deep 3 37 in 86 mm Mounting Hole SORS NN 4 4 Air Supply IN gt N an B 17775777771 1 00 in Inlet 1 8 npt Z ue iy 7 ILC 25 mm Minimum ZZ ee i 80 psi THE 7 ps Z H AST YY CZ N Z CES gt gt 1 8 npt Air Supply Inlet 4 holes equally spaced valve EET close Minimum 80
12. TON fluid 6b n a NEEDLE 6c n a SEAL 7 C02030 SCREW stop 8 C02042 NUT lock 9 C02035 WASHER back up Il l l cl oc C02021 Exploded View Ref No 10 11 12 13 14 15 16 17 19 20 22 23 These parts are included in Repair Kit CO2023 Part No 114027 C02032 111317 168518 168110 106555 C20314 C20317 111095 C02033 C20846 C02031 Description WASHER flat no 6 NUT lock nylon no 5 40 RING retaining O RING fluoroelastomer O RING fluoroelastomer O RING fluoroelastomer O RING fluoroelastomer O RING fluoroelastomer O RING buna N QUAD RING BACK UP RING SPRING which may be purchased separately 19 23 As 3 10 20 ae p A pU j M AA ru Bog Be il UN 14 6a 777 DD II IS ll Ir ug Qty S N x IT PEE 6b 12 15 17 2 T10613 310543 13 Parts Part No C02078 Model 482 DA with double acting air cylinder and 1 4 npt f outlet Ref Ref No PartNo Description Qty No PartNo Description Qty 1 C02079 BODY valve meter 1 121 111317 RING retaining 2 C02044 RETAINER outlet 1 191 168518 O RING fluoroelastome
13. aco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 2000 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revised November 2012 20 310543
14. eses in the text refer to reference numbers in the parts drawings and parts lists NOTE The gun handle assembly should not be disassembled unless there is damage or wear to the original parts Relieve Fluid Pressure 3 Remove the four socket head screws 103 from To relieve the fluid pressure to the AMV perform the the gun handle 108 following procedure 4 Unscrew the 10 32 x 1 4 fitting 105 to discon nect the tubing 104 from the gun handle 108 A WARNING 5 Unscrew the valve 106 that controls the air inlet To reduce the risk of serious injury whenever you pressure to the gun are instructed to relieve pressure always follow the Pressure Relief Procedure on page 6 6 Carefully remove the roll pin 111 that controls the tension of the spring 110 from the gun handle 108 1 Perform the Pressure Relief Procedure to relieve pressure to the metering valve Flush the meter 7 ing valve if possible Carefully remove the roll pin 112 that holds the trigger 109 in the gun handle 108 Remove the trigger from the handle Remove the spring 110 2 Disconnect the air and fluid hoses from the handle Gun Handle Disassembly Procedure Metering Valve Disassembly Procedure To remove the metering valve from the gun handle To disassemble the metering valve refer to the AMV perform the following procedure Disassembly procedure on page 8 10 310543 Service AMV Reassembly C02026 This procedu
15. inhaled e Know the specific hazards of the fluid you are using Read the fluid manufacturer s warnings e Store hazardous fluid in an approved container Dispose of the hazardous fluid according to all local state and national guidelines e Wear appropriate protective clothing gloves eyewear and respirator 310543 3 A WARNING SKIN INJECTION HAZARD Spray from the metering valve hose leaks or ruptured components can inject fluid into your body and cause extremely serious injury including the need for amputation Splashing fluid in the eyes or on the skin can also cause serious injury Fluid injected into the skin might look like just a cut but it is a serious injury Get immediate surgical treatment Do not point the metering valve at anyone or at any part of the body Do not put your hand or fingers over the nozzle Do not stop or deflect fluid leaks with your hand body glove or rag Do not blow back fluid this is not an air spray system Follow the Pressure Relief Procedure on page 6 if the nozzle clogs and before cleaning checking or servicing the equipment Tighten all fluid connections before operating the equipment Check the hoses tubes and couplings daily Replace worn damaged or loose parts immedi ately Do not repair high pressure couplings you must replace the entire hose Fluid hoses must have spring guards on both ends to help protect them from rupture caused by kinks or bends near
16. le incline and cycle the valve repeatedly A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure at left 3 Relieve the pressure 4 Install a suitable nozzle in the fluid outlet of the retainer 2 See page 17 for available nozzle sizes 5 Turn the nut 8 counterclockwise to unlock Turn the retainer 2 counterclockwise until it engages the stop screw 7 but does not hinder the free sliding action of the needle valve 6 NOTE Agjusting the retainer to the extreme open position may cause the valve to malfunction due to cocking of internal components 6 Adjust the shot size by turning the retainer clock wise for less fluid counterclockwise for more fluid NOTE The valve must be cycled and adjusted simul taneously when attempting to reduce shot size A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 6 Problem Cause Troubleshooting 1 Relieve the pressure 2 Check all possible problems and solutions before disassembling pump Solution Metering valve fails to dispense when actuator is tripped Check nozzle for cured or foreign fluid Clean or clear nozzle Observe the action of the needle valve 6 and the spring 23 not pres ent on Part No C02078 AMV through the vent hole in the valve
17. ng air supply minimum 80 psi 0 55 MPa 5 5 bar from a three way normally closed air valve to the 1 8 npt f air inlet Cycle the valve Observe the action of the needle valve 6 and the spring 23 not present on Part No C02078 AMV through the vent hole in the valve body 1 310543 5 Operation Pressure Relief Procedure A WARNING INJECTION HAZARD U i The system pressure must be manually relieved to prevent the system from starting or spraying accidentally Fluid under high pressure can be injected through the skin and cause a serious injury To reduce the risk of an injury from injection splashing fluid or mov ing parts follow the Pressure Relief Procedure whenever you e are instructed to relieve the pressure stop dispensing check or service any of the system equipment e orinstall or clean the nozzle 1 Shut off the fluid supply line to the automatic metering valve 2 Close the bleed type master air valve required in your system to shut off the air to the automatic metering valve 3 Repeatedly actuate the automatic metering valve until no fluid flows 4 Open the pump drain valve to help relieve fluid pressure in the pump hose and automatic meter ing valve Actuating the valve to relieve pressure may not be sufficient Have a container ready to catch the drainage 5 Leave the drain valve open until you are ready to dispense again 6 If you think that the valve nozzle or fluid ho
18. on AMV C02078 and the air piston 4 into the body 1 Press the piston firmly into the body so the threads appear Install the o ring 13 T washer 10 and nut 11 T Install the o ring 19 T into the groove inside the air cap 3 and reinstall the cap onto the body 1 Remove the needle chuck Install the o ring 17 T and reassemble the retain er 2 as follows a Place the retainer 2 on a flat surface with the threaded end down Press the needle seal 6c into the cavity using a 1 4 in 6 mm dowel Install the o ring 15 T and support washer 9 b Install the retaining ring 12 T with a retaining ring compression tool Thread the retainer 2 into the body 1 Turn the nut 8 clockwise to install and lock the retainer 2 Reinstall the stop screw 7 Reinstall the nozzle in the retainer 2 Reinstall the AMV on its mounting fixture Reconnect the air and fluid hoses Turn on the air pressure and apply power to the fluid supply system Return the AMV to normal operating condition 310543 9 Service AMV Disassembly C02026 1 Disconnect the tubing 104 from the elbow 102 This procedure describes how to disassemble the 2 Remove the socket head screw 107 and the pistol grip metering valve Refer to Parts information second screw not listed that secures the meter on page 15 ing valve 101 to the mounting block 113 Remove the metering valve NOTE The numbers in parenth
19. r 3 C02077 CAP cylinder 1 14T 168110 O RING fluoroelastomer 4 C02074 PISTON air 1 151 106555 O RING fluoroelastomer 5 C02076 CYLINDER 1 16t C20314 O RING fluoroelastomer 6T C02036 NEEDLE VALVE lapped 17T C20317 O RING fluoroelastomer includes items 6a 6b and 6c 181 C20987 O RING buna N 6at n a PISTON fluid 191 157195 O RING buna N 6bt n a NEEDLE 201 C02073 QUAD RING 6cT n a SEAL 211 C02033 QUAD RING 7 C02030 SCREW stop 8 C02042 NUT lock 9 C02035 WASHER back up 10 114027 WASHER flat no 6 1lif CO02032 NUT lock nylon no 5 40 22 C20846 RING back up 25 C19252 PLUG pipe 1 8 npt owe Ss Anu t These parts are included in Repair Kit CO2080 which may be purchased separately l l l l l l oc C02078 Exploded View 7 19 oF 5 25 tt 1 ae 17t 9 151 8 13t xA fmm l l i fic ee Ma eZ h 14T 6at 6bt 121 6ct 17t 2 T0612 14 310543 Parts Part No C02026 Model 482 HA Model 482 C with trigger actuated pistol grip handle Ref Ref No PartNo Description Qty No PartNo Description Qty 101 C02022 METERING VALVE 1 108 C02039 HANDLE 1 102 C2085
20. re and apply power to the fluid supply system Check the air and fluid hoses on the AMV for leakage Return the AMV to normal operating condition 310543 11 Service AMV Disassembly C02027 This procedure describes how to disassemble the automatic metering valve Refer to Parts information on page 16 NOTE The numbers in parentheses in the text refer to reference numbers in the parts drawings and parts lists Relieve Fluid Pressure To relieve the fluid pressure to the AMV perform the following procedure A WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure always follow the Pressure Relief Procedure on page 6 1 Perform the Pressure Relief Procedure to relieve pressure to the metering valve Flush the meter ing valve if possible 2 Disconnect the air and fluid hoses Metering Valve Disassembly Procedure To disassemble the AMV perform the following proce dure 1 Remove the metering valve from its mounting 2 Unscrew the 1 4 npt hex nipple 205 from the 90 elbow 206 to disconnect the cartridge 202 from the AMV 201 Exercise care to avoid spilling seal fluid 208 from the cartridge NOTE This unit is assembled using a C02021 meter ing valve 3 Disassemble the C02021 metering valve Refer to the AMV Disassembly procedure on page 8 12 310543 AMV Reassembly C02027 This procedure describes how to reassemble the automatic metering
21. re describes how to reassemble the pistol grip metering valve Refer to Parts information on page 15 NOTES e The numbers in parentheses in the text refer to reference numbers in the parts drawings and parts lists e Clean all the parts thoroughly before reassembling the AMV Check them carefully for damage or wear replacing parts as needed Metering Valve Reassembly Procedure To reassemble the metering valve refer to the AMV Reassembly procedure on page 9 Gun Handle Reassembly Procedure To reassemble the gun handle perform the following procedure 1 Install the spring 110 trigger 109 and roll pin 112 in the gun handle 108 2 Install the roll pin 111 that controls the tension of the spring 110 in the gun handle 108 3 Install the valve 106 that controls the air inlet pressure to the gun Reconnect the 10 32 x 1 4 fitting 105 that con nects the tubing 104 to the gun handle 108 Reinstall the four socket head screws 103 to lock the gun handle 108 components together Mount and secure the metering valve 101 to the mounting block 113 using the socket head screw 107 and the second screw not listed Reconnect the tubing 104 to the elbow 102 on the metering valve 101 Metering Valve Air and Fluid Connections To reconnect the AMV to the air and fluid lines per form the following procedure 1 2 Reconnect the air and fluid hoses Turn on the air pressu
22. se is completely clogged or that pressure has not been fully relieved after following the steps above very slowly loosen the hose end coupling and relieve pressure gradually then loosen the coupling completely Clear the nozzle or hose obstruction How the Metering Valve Operates The metering valve is an automatic air operated single acting valve for dispensing accurately metered amounts of fluid repeatedly The valve can dispense from 0 2 cc to 4 cc of fluid with a viscosity range from 3000 to 1 million centipoise 6 310543 An air operated spool valve directs pressurized fluid to either side of a floating piston Shot size is easily and quickly changed by simply lengthening or shortening the piston stroke see Adjusting the Valve At its maximum of 4 cc of moderate viscosity fluid the valve will dispense up to 15 shots per minute Lower viscosities or smaller shots permit even faster opera tion A special snuffer action at the end of the dispensing cycle draws fluid back preventing dripping or stringing Adjusting the Valve 1 Connect the fluid supply line to the fluid inlet or to the external threads of the boss C02021 only 2 Gradually apply fluid pressure while cycling the valve Increase pressure until the desired dispens ing rate is attained and all air is purged from the fluid supply line NOTE To purge air from the fluid supply line hold the valve higher than the fluid source with the hose on a gent
23. the couplings FIRE AND EXPLOSION HAZARD Improper grounding poor air ventilation open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury Ground the equipment and the object being sprayed See Ground the System on page 5 Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being dispensed Extinguish all the open flames or pilot lights in the dispense area Electrically disconnect all the equipment in the dispense area Keep the dispense area free of debris including solvent rags and gasoline Do not turn on or off any light switch in the dispense area while operating or if fumes are pres ent Do not smoke in the dispense area Do not operate a gasoline engine in the dispense area If there is any static sparking while using the equipment stop dispensing immediately Identi fy and correct the problem 4 310543 Setup Ground the System A WARNING FIRE AND EXPLOSION HAZARD To reduce the risk of a fire explosion and serious injury proper electrical grounding of every part of your system is essential Read the warning section FIRE AND EXPLOSION HAZARD on page 4 and follow the grounding instructions below The following grounding instructions are minimum requirements for a basic dispensing system Your system may include other equipment or objects which must be grounded Check your local electrical code for
24. un 5 Installation 00 0 cee eee eee 5 Operation xg retool eae eae eet 6 Pressure Relief Procedure 6 How the Metering Valve Operates 6 Adjusting the Valve 0 eee eee eee eee 6 Troubleshooting 00 c cece eee eee 7 SONICE 2 MM E 8 AMV Disassembly 00000 eee eee 8 AMV Reassembly 00 eee eee ene 9 AMV Disassembly C02026 10 AMV Reassembly C02026 11 AMV Disassembly C02027 12 AMV Reassembly C02027 12 2 310543 PAIS odi nri ri ctae iuit fetus 13 Part Nos C02021 C02022 C02025 13 Part No C02078 cos crga eU atid ace 14 Part No CO2026 0 ccc cece eee 15 Part No C02027 1 0 ccc ee ee 16 ACCOSSOTL OS Daily ebd wb B te bes o9 ela oe 17 Fluid Nozzles 0 0 ccc ee eee 17 Needle Installation Tool 918482 17 Technical Data 0 0 cece eee ee 18 Dimensions 000 c eee eee eee eee ee 19 Graco Standard Warranty 000 0005 20 Graco Information 0 00 c cece eee eee 20 Symbols Warning Symbol Caution Symbol This symbol alerts you to the possibility of serious This symbol alerts you to the possibility of damage to injury or death if you do not follow the instructions or destruction of equipment if you do not follow the instructions A WARNING EQUIPMENT MISUSE HAZARD Equipment misuse
25. valve Refer to Parts information on page 16 NOTE The numbers in parentheses in the text refer to reference numbers in the parts drawings and parts lists NOTE Clean all the parts thoroughly before reassem bling the AMV Check them carefully for damage or wear replacing parts as needed Metering Valve Reassembly Procedure To reassemble the AMV perform the following proce dure 1 Reassemble the C02021 metering valve Refer to the AMV Reassembly procedure on page 9 2 Reinstall the 1 4 npt hex nipple 205 into the 90 elbow 206 to reconnect the cartridge 202 with the AMV 201 Exercise care to avoid spilling seal fluid 208 from the cartridge 3 Reinstall the AMV on its mounting fixture 4 Reconnect the air and fluid hoses 5 Fill the cartridge 202 with seal fluid 208 Do not exceed the 2 75 in 70 mm level measured from the top of the cartridge Install the end cap 203 6 Turn on the air pressure and apply power to the fluid supply system 7 Check for leakage at the AMV 8 Return the AMV to normal operating condition Parts Part Nos C02021 C02022 and C02025 Ref No PartNo Description Qty 1 C02029 BODY used on C02022 C02025 1 C02028 BODY used on C02021 1 2 C02043 RETAINER outlet used on C02021 and C02022 1 C02044 RETAINER outlet used on C02025 3 C02041 CAP cylinder 1 4 C02045 PISTON air 1 6 C02036 NEEDLE VALVE lapped includes items 6a 6b and 6c 6a n a PIS
26. with reasonable assistance in mak ing any claim for breach of these warranties In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equipment hereunder or the furnishing performance or use of any products or other goods sold hereto whether due to a breach of contract breach of warranty the negligence of Graco or otherwise FOR GRACO CANADA CUSTOMERS The parties acknowledge that they have required that the present document as well as all documents notices and legal proceedings entered into given or instituted pursuant hereto or relating directly or indirectly hereto be drawn up in English Les parties reconnais sent avoir convenu que la r daction du pr sente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s a la suite de ou en rapport directement ou indirectement avec les procedures concern es Graco Information TO PLACE AN ORDER contact your Graco distributor or call to identify the distributor closest to you Phone 612 623 6921 or Toll Free 1 800 328 0211 Fax 612 378 3505 All written and visual data contained in this document reflect 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 English MM 310543 Gr
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