Graco 312749G User's Manual
Contents
1. 7250 psi 50 MPa 500 bar 162024 Adapter Between Mix Tubes 3 8 npt f x f 7250 psi 50 MPa 500 bar B side Screen For low viscosity fluids only 185416 STAINER 40m 121410 PACKING screen retainer 26 Accessory Ports See FIG 13 AA Inlet Side 1 2 in npt f These ports are located before A and B shutoff check valves Use these ports for inlet gauges or recirculation They also are equipped to manifold face mount 255278 circulation valves AB A Side After Shutoff 1 4 in npt f These ports are located after A and B shutoff check valves Use these ports as an outlet pressure gauge or as a second flush inlet for materials that require dual separate flushing for complete flush material isolation AC B Side After Shutoff Before Restrictor 1 4 in npt f This port can be used as an alternate flush coming in before the restrictor on the B side AA Fic 13 Accessory Ports 312749G Technical Data Technical Data Maximum working pressure 7250 psi 50 MPa 500 bar Maximum fluid temperature 160 F 71 C Fluid inlet 1 2 in nosm union with nipple adapters for 1 2 in 3 8 in or 1 4 in hoses Fluid outlet size 1 2 npt f with 3 8 npt m adapter nipple Solvent inlet valve 1 4 npt m Wetted parts Manifold block and internal parts 302 and 303 stainless steel PTFE tungsten car bide electroless nickel plated steel zinc plated steel2. 1 2 npt f with 3 8 npt m adapter D Hardener Adapter Nipple S Static Mixer Housing E Resin Shutoff Handle blue A material T Fluid Whip Hose F Solvent Inlet Valve 1 4 npt m U Airless Spray Gun G Grounded Solvent Hose V Static Mixer Adapter H Hardener Shutoff Handle green B material W Static Mixing Element J Hardener Restrictor Adjustment K Hardener Screen inside L Integrator Hose 312749G 7 Overview Overview XM plural component sprayers can mix most two com ponent epoxy and urethane protective coatings When using quick setting materials less than 10 minute pot life a remote mix manifold must be used The left side of the mix manifold is intended for the major volume material or the higher viscosity material if using a 1 1 volume mix This side is referred to through out the manual as the resin side or A side The right side is referred to as the Hardener side or B side The B side incorporates a 40 mesh strainer and an adjustable restrictor for balancing the system back pressure and flow See FIG 2 to view flow of A and B material inside the XM Mix Manifold Resin nil SINS VA SNS SNS W Hardener 7 yy Resin an ae Mixed Material Fic 2 Cutaway View 2 z The resin and hardener enter the manifold through the manifold inlet ports The A material flows through the manifold to the material outlet port The injector tube creates
3. 10 Flush Before Using Equipment 11 ODCAlION ae eee oo see eee Sheek S 12 Pressure Relief Procedure 12 FUSI emmin eorr n aan oan ph ate ee asin ce 13 Dispensing and Spraying 14 Volume Balancing the Mix Manifold 15 Troubleshooting 0 cece eee eee 18 MCD all ise 6 Cah et oar eae a eth eeale tee 19 Remove Restrictor 00000 ee 19 Assemble Restrictor 0050 20 Assemble Cartridge Assembly 20 Maintenance i4cs eek i i ae ea 21 Clean Static Mixers 00 000 es 21 Clean B Side Screen 005 21 Clean Mix Manifold Outlet 21 PONS 6 10 Sicha ee ae ee ae eee 22 255684 Mix Manifold 22 PLO DAI Kil e655 ayers eats ee war eee Sat A 26 ACCESSONGS kere eee eee ees 28 ACCESSONY POMS 22cc22bcexuawescd he weeed 28 Technical Data amp icuce cd seh wake care eine Be 29 Graco Standard Warranty 00006 30 Graco Information Related Manuals Manuals are available at www graco com Component Manuals in U S English Manual Descriptor High Flow Severe Duty Shutoff Check 313343 Valve Instructions Parts Ball Valves Check Valves and Swiv 306861 els Instructions Parts 310797 Mix Manifold Kits Instructions Parts ee Back Pressure Valve Instructions Parts 312749G Warnings Warnings The following warnings are for the setup use grounding maintena
4. UHMWPE Flush valves and fittings 440 stainless steel plated carbon steel hardened alloy steel acetal PTFE 312749G 27 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 substitution 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 autho
5. and FIG 4 on page 9 5 If fluid heaters are used shut them off using the controls on the heater control box 6 Shut off feed pumps if used 312749G Operation 7 Disengage trigger lock ii Min A 3658mm 1S7 HI A KA al BXSIGISUNCB E S CI ti1950a jpe SS 8 Hold a metal part of the gun firmly to a grounded metal pail with a splash guard in place Trigger gun to relieve pressure in material hoses ti1953a 9 ti1949a S 10 Flush mixed material hoses mixer and gun See Flush on page 12 11 Operation Flush A wv Read warnings and grounding instructions in your sprayer manual If your system uses heaters shut off the main power to the heaters and heated hose con trol before flushing NOTICE To prevent fluid from setting up in the dispensing equipment flush the system frequently Be sure there is an adequate amount of solvent in the solvent supply before spraying NOTE e Ensure flushing fluid is compatible with dispense fluid and the equipment wetted parts e Solvent may channel through viscous fluids and leave a coating of mixed fluid on the inner tube of your hose Be sure all fluid is thoroughly flushed from the hose after each use e Remove spray tip for more thorough cleaning of the whip hose and static mixers e Use a solvent that dissolves the material you ar
6. area To prevent contact with isocyanates appropriate per sonal protective equipment including chemically impermeable gloves boots aprons and goggles is also required for everyone in the work area Material Self Ignition Some materials may become self igniting if applied too thick Read material manufacturer s warnings and material MSDS 312749G Isocyanate Hazard Moisture Sensitivity of Ilsocyanates Isocyanates ISO are catalysts used in two component foam and polyurea coatings ISO will react with moisture such as humidity to form small hard abrasive crystals which become suspended in the fluid Eventually a film will form on the surface and the ISO will begin to gel increasing in viscosity If used this partially cured ISO will reduce performance and the life of all wetted parts NOTE The amount of film formation and rate of crystallization varies depending on the blend of ISO the humidity and the temperature To prevent exposing ISO to moisture e Always use a sealed container with a desiccant dryer in the vent or a nitrogen atmosphere Never store ISO in an open container e Keep the ISO lube pump reservoir filled with Graco Throat Seal Liquid TSL Part 206995 The lubri cant creates a barrier between the ISO and the atmosphere e Use moisture proof hoses specifically designed for ISO such as those supplied with your system e Never use reclaime
7. ase T Little or no resin output or no resin output Fluid inlet is plugged inlet is plugged Clean inlet remove obstruction See inlet remove obstruction See Clean Mix Manifold Outlet page 20 Fluid container is empty container is Fluid container is empty Refill Little or no hardener output Fluid inlet is plugged A oan inlet remove obstruction See Clean Mix Manifold Outlet page 20 Fluid container is empty container is Fluid container is empty Refill Hardener screen 28 is plugged Only Clean hardener screen See Clean Mix applies if it is installed Manifold Outlet page 20 Mixed fluid will not flush out Fluid is hardened in static mixers or whip Clean with compatible solvent See Main tenance page 20 Replace as neces sary Solvent supply container is empty Refill Solvent is not compatible with fluid Change to compatible solvent Hardener is cold Correct heat problem See fluid heater section of XM Plural Component Sprayer Repair manual 313289 Open restrictor or clean screen See Clean Mix Manifold Outlet page 20 Correct heat problem See fluid heater section of XM Plural Component Sprayer Repair manual 313289 Hardener pressure higher than normal Restrictor or screen plugging up Hardener pressure lower than normal Resin is cold Flow rate is low Worn hardener restrictor Adjust restrictor See Adjust B Mix Mani fold Restriction on XM Sprayers While Spra
8. 1139 120 151630 121 113500 ve Not shown 312749G Description SPRING compression BALL solvent check SEAT foot valve carbide BALL carbide SPRING SEAL u cup UHMWPE SPACER backup seal STEM PACKING o ring PTFE white SEAL seat retainer PACKING o ring black solvent resist PACKING o ring white PTFE PACKING o ring TOOL u cup and manifold ADHESIVE anaerobic Qty meek ek ek h h eC a N Repair Kit 25 Accessories Accessories 255747 Shutoff Check Valve Cartridge Assembly See manual 313343 for parts 255278 Complete High Flow Sever Duty Shutoff Check Valve Includes housing screws and o ring for recirculation or machine with outlet valves See manual 313343 for parts 10 000 psi Fluid Pressure Gauge 2 5 in 114434 1 4 npt m back mount pressure gauge can be used in port AB as gun pressure gauge Includes 316 stainless steel wetted 551387 1 4 npt bottom mount version 262522 Remote Mix Manifold Carriage 101 The carriage holds and protects the mix manifold assembly This requires four 5 16 18 x 1 2 in screws 262478 7250 psi Static Mixer Housing 3 8 npt m holds 1 2 in 12 element stick from 25 pack 248927 248927 Plastic Mix Elements 25 pack of 1 2 in x 12 elements plastic sticks 511352 Mixer Stainless 3 8 npt m pipe with 12 element stainless welded stick 7250 psi 50 MPa 500 bar 15B729 Adapter Mixer Inlet 3 8 npt m x f
9. 5x 162449 NIPPLE 1 2 x 1 4 npt 2 101 262522 CARRIAGE remote manifold 1 102 15R529 BLOCK fluid distribution 2 103 255278 VALVE shutoff check 2 includes 11 see page 22 108f 121139 PACKING o ring 2 109 121295 SCREW cap sch 8 110 111801 SCREW cap hex hd 5 16 18 4 111 100361 PLUG pipe 2 112 551387 GAUGE pressure fluid 1 113 162505 UNION 3 8 male x 1 2 female 1 114 222200 VALVE restrictor 1 115 155699 ELBOW street 3 8 18 npt 1 116 156849 NIPPLE pipe 2 x 3 8 18 npt 1 117 164672 ADAPTER 3 8 18 npt x 1 4 18 1 npsm 118 126786 WRENCH restrictor 1 119 16N367 COUPLING 1 2 x 3 5 in 1 Use to adapt to any combination of one 1 2 in two 3 8 in and one 1 4 in hoses t Provided in mix manifold repair kit 256238 See manual 313343 for repair instructions amp Not shown 24F284 Remote Manifold Restrictor Kit Qty Ref Part No Description 32 158491 NIPPLE 1 2 npt 33 159239 NIPPLE pipe 1 2 x 3 8 npt 113 162505 UNION 3 8 male x 1 2 female 114 222200 VALVE restrictor 115 155699 ELBOW street 3 8 18 npt 116 156849 NIPPLE pipe 2 x 3 8 18 npt 118 126786 WRENCH restrictor Ce ee b d 24 33 or 116 or 117 312749G Repair Kit 256238 XM Mix Manifold without Circulation Repair Kit See parts lists on pages 22 and 23 Ref 2 3 11a 11b 11c 11d 11e 11f 11g 11j 16 17 108 Part 117558 101947 15A968 116166 15M530 15M529 15M189 15K347 121138 15K692 113137 110004 12
10. 84_256980_312749_13a Fic 11 312749G Repair 4 Loosely install lock nut 20 on stem 18 5 Tighten restrictor housing 19 into manifold 1 6 Tighten stem 18 down until it bottoms on seat 14 Then back stem out to previously noted position or two full turns and lock in place with lock nut 20 Assemble Cartridge Assembly 1 Apply blue thread lock to external threads of car tridges 11 and install in manifold with stem backed out fully counter clockwise Place wrench on car tridge flats and torque to 125 ft lbs 170 Nem See FIG 6 on page 18 2 Install handle CH and cap nut CN on cartridge so that the handles point toward each other when closed WY i WY ors CN CH FIG 12 19 Maintenance Maintenance Clean Static Mixers See FIG 1 page 7 Typically two static mixer housings S Part No 262478 are connected to the static mixer adapter V on the integrator hose L These housings use plastic mix elements available in a package of 25 W Part No 248927 NOTICE Never use a swivel union on the mixer inlets The union will compress the tube and make it impossible to remove the mix element To clean the housing and replace the mix element 1 Relieve pressure see page 11 Remove mixer housings S from integrator hose L and from whip hose T 2 Place flats of mixer housing S in
11. Instructions Parts 7 GRACO XM Mix Manifold Kits 3127496 For mixing two component reactive materials with XM plural component sprayers Not for use on mechanical proportioners Approved for use in explosive atmospheres For professional use only Part No 255684 Mix Manifold Part No 256980 Remote Mix Manifold Conversion Kit with protective guard 7250 psi 50 MPa 500 bar Maximum Working Pressure 160 F 71 C Maximum Fluid Temperature Important Safety Instructions Read all warnings and instructions in this manual Save these instructions Mix Manifold and Remote Mix Manifold Conversion Kit PROVEN QUALITY LEADING TECHNOLOGY Related Manuals Contents Related Manuals 00 0c eeeeaee 2 WARNINGS sits carnats e ate hee 3 Isocyanate Hazard 00 0c eee 5 Material Self Ignition 000 ce eee 5 Moisture Sensitivity of Isocyanates 5 Keep Components A and B Separate 6 Changing Materials 00 eee eee 6 Component Identification 7 OV CRVICW 55 45 5 ees ee i te ee Se ae 8 installation eeuwen eid a es 9 FGETS ces eS ok eck ha Ae ek ON eae Ik 9 Remote Mounted Manifolds 9 Remote Circulation Control Valves 9 Solvent Inlet 0 0 0 cee ee eee 10 FUIT QUIED s 3 ssch cate ee eo eed oe eae ae ae 10 MOUNINO 6 3 5 cans aco Baie ed Fae meee 10 Grounding 64 65 diced ba octet eet ae aoe
12. a grounded vise Push mix element W out of the inlet end 3 If necessary use a 1 2 in drill bit to drill out old material and clean the mix element from the inlet end down to the internal shoulder at the outlet end 4 Use a brush to clean any debris in housing S 5 Insert new mix element wide end first Clean B Side Screen NOTE The following instructions apply only when using the strainer accessory for low viscosity fluids See Acces sories on page 26 1 Remove B inlet union 31 from manifold block 1 TA 20 2 Pull V screen 28 and retainer o ring 29 straight up and out with a needle nose pliers Clean or replace screen 28 4 Reinstall screen 28 and white plastic o ring 29 with tool 15T630 included in repair kit 256238 NOTE The o ring 29 is used as a retainer ring not a seal It may be scratched or deformed from pushing the screen 28 back in 5 Install B inlet union 31 on manifold block 1 Clean Mix Manifold Outlet 1 Remove outlet fitting 33 to expose B center injec tion tube 9 2 Clean any build up on around or inside the tube 9 3 Reinstall outlet fitting 33 312749G Parts 255684 Mix Manifold FLOW DIRECTION SOLVENT DIRECTION FLOW DIRECTION r_ 255684 _256980_312749_15a 1 312749G Parts Detail A A Apply lithium grease A Apple an
13. a hollow stream of A material for the B mate rial to fill once the hardener exits the injector tube The mixed resin and hardener material enters the mix mani fold outlet R before the mixed material enters the inte grator fluid hose Adjust the restrictor housing to balance the system back pressure and flow NOTE Always use the integration hose supplied with your XM plural component sprayer after the mix mani fold NOTE Please follow these recommendations for setup e Use atleast a 3 8 in 10 mm x 25 ft 7 m integra tor hose e Install at least 24 elements of static mixer after the integration hose and before the spray gun whip hose Hardener Z ii r_255684_256980_312749_17a 312749G Installation yp I C MPaibar PSI nine ee This manifold is designed for use on proportioning pumps with independent drive motors Use of this manifold on a mechanically linked sprayer without using mechanically linked on off A and B valves may cause hazardous fluid pressures that can rupture equipment For assistance in setting up a plural component sprayer contact your Graco distributor to ensure that you select the proper type and size equipment for your system Fluid Inlets The A and B fluid inlets are equipped with 1 2 nosm unions in 1 2 in npt f ports Connect 1 2 in 3 8 in or 1 4 in nosm f fluid hoses using the two adapter nipples pr
14. aerobic pipe thread sealant A Apply blue thread lock to external threads A Torque to 125 ft lbs 170 Nem A Plastic assembly tool for 28 29 and 11d included in repair kit 256238 A U cup open lips face spring x After tightening valves 11 into housing 1 orient handles 23 24 to face each other when closed Large end of inside taper faces out Accessory only 21 Parts 255684 Mix Manifold 34 35 45 118 Part 15M229 117558 101947 15E367 214037 15R378 15R067 255747 15A968 116166 15M530 15M529 15M189 15K347 121138 15K199 15K692 117623 183951 15R382 113137 110004 235205 15M969 110005 100721 101754 15R380 247789 156684 158491 159239 100361 156823 162449 126786 Description BLOCK manifold SPRING compression BALL solvent check ELBOW street lapped VALVE ball see manual 306861 TUBE injector hardener PIPE outlet mixer manifold CARTRIDGE valve shutoff check includes 11a 11j SEAT foot valve carbide BALL carbide SPRING SEAL u cup UHMWPE SPACER backup seal STEM PACKING o ring PTFE white HOUSING top check valve SEAL seat retainer NUT cap 3 8 16 SEAT valve carbide SCREW set hollow 3 4 16 PACKING o ring black solvent resist PACKING o ring white PTFE STEM valve carbide HOUSING restrictor NUT jam hex 5 16 24 unf PLUG pipe 1 4 npt f PLUG pipe 3 8 npt f HANDLE green HANDLE blue UNION ada
15. d Set Machine Restriction With the restriction stem on the remote mix manifold open counter clockwise adjust the restriction stem 222200 on the outlet of the proportioner to optimize the B side dosing control window The goal is to create constant flow on the A side and frequent dosing or near constant flow on the B side See the XM operation man ual for instructions Set Mix Manifold Restriction 1 Adjust the restriction stem clockwise until the bar graph on the Ratio Mode screen starts moving to the left The B dosing valve blue light will get brighter and the B dosing valve will open further 2 Turn the restriction valve counter clockwise a half turn and then lock the adjustment by tightening the nut Adjust Restriction on Early Xtreme Mix Sprayers To check if the system is balanced watch the B dosing valves The valve should be open up most of the time when the gun is triggered If the B valve is giving only short on shots adjust the restrictor in further B fluid should flow most of the time making only short off cor rections Hose Selection For Feeding A Remote Mix Manifold Hoses should be sized to match the hose volume ratio to the mix ratio The hose size should also allow for min imum pressure drop on the major volume side to meet your flow requirements Use Table 1 to match mix ratio hose selection and vol ume ratio Use Table 2 on page 15 to reference amou
16. d solvents which may contain moisture Always keep solvent containers closed when not in use e Never use solvent on one side if it has been con taminated from the other side e Always park pumps when you shutdown e Always lubricate threaded parts with Part 217374 ISO pump oil or grease when reassembling Keep Components A and B Separate Keep Components A and B Separate NOTICE To prevent cross contamination of the equipment s wet ted parts never interchange component A isocyanate and component B resin parts The gun is shipped with the A side on the left The fluid manifold fluid housing side seal assembly check valve cartridge and mix chamber are marked on the A side Changing Materials When changing materials flush the equipment mul tiple times to ensure it is thoroughly clean e Always clean the fluid inlet strainers after flushing e Check with your material manufacturer for chemical compatibility e Most materials use ISO on the A side but some use ISO on the B side e Epoxies often have amines on the B hardener side Polyureas often have amines on the B resin side 6 312749G Component Identification Component Identification Fic 1 Typical Installation Key A Resin High Volume Supply Hose A material M Solvent Check Valve B Hardener Low Volume Supply Hose B material P Hardener Injector not shown inside outlet R C Resin Adapter Nipple R Mix Manifold Outlet
17. e mixing e Always leave equipment filled with fluid to avoid dry ing and scaling 1 Relieve pressure see page 11 2 Engage trigger lock Remove spray tip ae gt i1949a ti1948a 12 3 Close blue E A material and green H B material supply valves NOTE The valve handles point at each other in the closed posi tion 5 Turn on solvent flush pump 6 Disengage spray gun trigger lock ti1950a 7 Trigger gun into a grounded metal pail with lid Use a lid with a hole to dispense through to avoid splash ing Be careful to keep fingers away from front of gun Flush out mixed material until clean solvent dispenses ti1953a 8 Turn off solvent pump air supply 312749G 9 Hold the metal part of the gun firmly to a grounded metal pail with lid in place Trigger gun until all fluid pressure is relieved ti1949a WE 11 Close solvent inlet valve F 312749G Operation Dispensing and Spraying 1 Close solvent inlet valve F 2 Open blue E A material and green H B material valves im a mh E Q z Ly H 3 Ensure sprayer is in Spray Mode and push start 4 Disengage spray gun trigger lock ye ti1950a 5 Hold the metal part of the gun firmly to a grounded metal pail with a lid to avoid splashing Trigger the gun until mixed coating material is evident and purge solvent is gone 6 Proceed spraying 13 Operation Volume Ba
18. ginal instructions This manual contains English MM 312749 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES e P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 2009 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com Revised April 2014
19. he hose core must be chemically compatible with the solvent being used such as nylon or PTFE Fluid Outlet Connect a 3 8 in ID x 25 ft minimum integrator hose L to the fluid outlet R Then connect the static mixers S and whip hose T to the 3 8 npt f integrator hose L Two static mixers are often used in series Mounting To mount the bare manifold drill four holes in the mounting surface and secure with four 5 16 18 x 1 2 in 50 mm screws See the following illustration for details and dimensions a 6 38 in 162 05 mm 11 32 diameter 1 44 in 36 57 mm Grounding Aw Your system must be grounded Read warnings in your sprayer manual Check your local electrical code e Pump use a ground wire and clamp as instructed in your sprayer operation manual e Air and fluid hoses use only electrically conduc tive hoses with a maximum of 500 ft 150 m com bined hose length to ensure grounding continuity Check electrical resistance of hoses If total resis tance to ground exceeds 29 megohms replace hose immediately 10 e Mix manifold and solvent flush system use only a Graco approved grounded solvent hose Not all heated hoses are grounded and the mix manifold primary ground is through the solvent hose Ensure that the solvent pump is properly grounded as instructed in your solvent pump manual Ensure there is electrical continuity from the spray tip to the gro
20. hildren and animals away from work area Comply with all applicable safety regulations TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if solashed in the eyes or on skin inhaled or swallowed e Read MSD9 s to know the specific hazards of the fluids you are using e Store hazardous fluid in approved containers and dispose of it according to applicable guidelines e Always wear impervious gloves when spraying or cleaning equipment PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating servicing or when in the operating area of the equipment to help protect you from serious injury including eye injury inhalation of toxic fumes burns and hearing loss This equipment includes but is not limited to e Protective eyewear e Clothing and respirator as recommended by the fluid and solvent manufacturer e Gloves e Hearing protection 4 312749G Ilsocyanate Hazard Spraying materials containing isocyanates creates potentially harmful mists vapors and atomized partic ulates Read material manufacturer s warnings and material MSDS to know specific hazards and precautions related to isocyanates Prevent inhalation of isocyanate mists vapors and atomized particulates by providing sufficient ventila tion in the work area If sufficient ventilation is not available a supplied air respirator is required for everyone in the work
21. ing or servicing equipment 312749G 3 Warnings PRESSURIZED EQUIPMENT HAZARD Fluid from the gun dispense valve leaks or ruptured components can splash in the eyes or on skin and Cause serious injury e Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment e Tighten all fluid connections before operating the equipment e Check hoses tubes and couplings daily Replace worn or damaged parts immediately EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury e Do not operate the unit when fatigued or under the influence of drugs or alcohol e Do not exceed the maximum working pressure or temperature rating of the lowest rated system component See Technical Data in all equipment manuals Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturer s warnings For complete information about your material request MSDS forms from distributor or retailer Check equipment daily Repair or replace worn or damaged parts immediately with genuine manu facturer s replacement parts only Do not alter or modify equipment Use equipment only for its intended purpose Call your distributor for information Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep c
22. lancing the Mix Manifold When the mix manifold is remote mounted ratio errors can occur between the sprayer and the mix manifold even when the sprayer output ratio is accurate The following can occur when the hoses are not volume balanced to the mix ratio e Hoses fill to high pressure while metering on ratio e Only the A material hose comes up to spray pres sure e Off ratio at the mix point until hose pressures equal ize Lead Lag Imbalance When resin and hardener volume requirements ratio and or viscosities are different an imbalance can occur each time the gun is triggered This occurs because the fluids can rush out of the manifold near a 1 1 ratio before the sprayer starts To avoid this imbalance e Add restriction on the hardener low volume side to balance the flow at the mix manifold e f the mix manifold is remote pressurize hoses to spray pressure before starting soray mode when mix manifold is remote e If the mix manifold is remote size the fluid delivery hose volume to nearly match the mix ratio See Table 1 Adjust B Mix Manifold Restriction on XM Sprayers While Spraying Machine Mounted Mix Manifold Adjust the restriction stem on the mix manifold to opti mize the B side dosing control window The goal is to create a constant flow on the A side and frequent dosing or a near constant flow on the B side See the XM oper ation manual for instructions 14 Remote Mounted Mix Manifol
23. nce and repair of this equipment The exclama tion point symbol alerts you to a general warning and the hazard symbol refers to procedure specific risk Refer back to these warnings Additional product specific warnings may be found throughout the body of this manual where applicable FIRE AND EXPLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode To help prevent fire and explosion Use equipment only in well ventilated area When flammable liquid is sprayed or used for flushing or cleaning keep sprayer at least 20 feet 6 meters away from explosive vapors Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc Keep work area free of debris including solvent rags and gasoline Do not plug or unplug power cords or turn power or light switches on or off when flammable fumes are present Ground all equipment in the work area See Grounding instructions Use only grounded hoses Hold gun firmly to side of grounded pail when triggering into pail If there is static sparking or you feel a shock stop operation immediately Do not use equipment until you identify and correct the problem Keep a working fire extinguisher in the work area EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury e Do not operate the unit when fatigued or under the influence of drugs or alcohol e Do not exceed the maxim
24. nt of pressure drop for 50 ft lengths of different hose sizes Size remote mix manifold hoses to Minimize pressure drop on the high volume and often higher viscosity resin side to achieve higher flow and pressure at the gun while spraying e Allow both A and B material hoses to come up to spray pressure together when A and B fluids are metered into the hoses on ratio 312749G e Balance the inherent stall pressure between the resin A and hardener B sides when the gun closes and also when triggered This reduces the lead lag error at the mix point when the spray gun is triggered Table 1 Volume Ratio of A to B Hose Hose Selection Hose Volume A X B Ratio Sse 1 1 2 1 oe Operation Example At a 4 1 mix ratio a 1 2 in ID resin hose and a 1 4 in ID hardener hose matches the 4 1 volume ratio Table 2 Hose Selection by Pressure Drop Pressure drop per 50 ft section per 1000 cps at 1 gal min 1 Example What is the pressure loss of a 2000 cps material through 150 ft of 3 8 in ID hose at 0 75 gpm 690 psi from chart x 2 viscosity factor 2 x 1000 cps x 3 3 x 50 ft hoses x 0 75 of gpm 3105 psi loss That is a lot of pressure loss before the spray gun Let s try 1 2 in hose See example 2 312749G Pressure Drop per 15 24 meter section per 1000 cps at 1 liter min Bar Reference Formula Pressure drop 0 0273 QVL D Key Q Vis p
25. oise V Gallons per minute L Length ft D Inside diameter in 2 Example What is the pressure loss of a 2000 cps material through 150 ft of 1 2 in ID hose at 0 75 gom 218 psi from chart x 2 viscosity factor 2 x 1000 cps x 3 3 x 50 ft hoses x 0 75 of gpm 981 psi loss 15 Operation Optional Recirculation Ports are provided on the A and B sides for recircu lating the material hoses back to the machine supplies To add remote recirculation install shutoff check valves 255278 on front of mix manifold assembly This is a high quality carbide ball and seat valve designed to close and be leak free when in spray mode Use adjustable restrictor valves 222200 to control the flow rate back into the supply r_255684_256980_312749_4 Fic 5 Remote Mix Manifold Recirculation NOTE When recirculation valves are moved remote down stream of the dosing valves the machine can no longer automatically check that the recirculation valves are closed and leak free when going into Spray Mode If the recirculation valves leak while you are spraying you will be off ratio with no indication See XM sprayer operation manual 312359 for more information 16 312749G Troubleshooting Troubleshooting 1 Relieve the pressure before you check or service 2 Check all possible causes and solutions in the trou any system equipment bleshooting chart before disassembling the mani fold Problem
26. ovided Remote Mounted Manifolds Machine Outlet Check Valves The XM sprayer must have outlet check valves CV in order to accurately measure pump outlet flow These check valves are provided in the mix manifold when it is mounted on the sprayer When the mix manifold is removed and used remotely you must add outlet check valves on the machine Use shutoff check valves 255278 as the outlet check valves as provided in conversion kit 256980 The valves act as severe duty check valves when the check valve handle is open They act as manual shutoff valves when the handle is closed CV FIG 3 Machine Outlet Check Valves 312749G Installation Machine Mounted Restrictor Valve When the mix manifold is used remotely a restrictor valve 222200 is added to the B side outlet of the pro portioner This configuration requires that the machine outlet restrictor be used to set the bar graph on the Ratio Mode screen Remote Circulation Control Valves Shutoff check valves CV may also be face mounted on the remote mix manifold to circulate heated material before spraying i y L F Po N R r_255684_256980_312749_4 Fic 4 Remote Mix Manifold Options on Carriage Grounding Solvent Inlet Connect the solvent supply line G from the solvent pump to the 1 4 npt m solvent inlet valve F Use a Graco approved grounded hose rated to withstand the maximum fluid working pressure of the solvent pump T
27. pter 1 2 npt NIPPLE 1 2 npt see page 23 NIPPLE pipe 1 2 x 3 8 npt see page 23 PLUG pipe 1 2 in 14 npt UNION swivel 2 x 1 4 18 npt NIPPLE 1 2 x 1 4 npt see page 23 WRENCH restrictor t Provided in mix manifold repair kit 256238 See manual 313343 for repair instructions amp Not shown 22 Qty N a e 4 4 ss es ae tt N S ae ek eS eS ee ONN a ma a N SS Nh P 312749G Parts 256980 Remote Mix Manifold Conversion Kit with outlet check shut off valves and machine mounted restrictor valve Shutoff check valves must be used when using the mix manifold remote on an XM sprayer Includes everything needed to move the existing mix manifold remote except the A and B fluid hoses which should be chosen according to the guidelines starting on page 14 NOTE Extra hose nipples are included to accommodate 1 2 in or 3 8 in A hose and 1 2 in 3 8 in or 1 4 in B hose my o a S his Ane lt D i VIPAT s 31 r_255684_256980_312749_8 A Mix manifold 255684 is not included purchase separately See page 21 for parts A Face down A B outlet to hose ti23371b 312749G 23 Parts 256980 Remote Mix Manifold Kit Parts Qty Ref Part No Description 13 117623 NUT cap 3 8 16 unc 2 23 15R380 HANDLE green 1 24 15J916 HANDLE blue 1 31 156684 UNION adapter 2 32x 158491 NIPPLE 1 2 npt 3 33x 159239 NIPPLE pipe 1 2 x 3 8 npt 5 4
28. reen for hardener 1 Relieve the pressure see page 11 2 Clean B side screen See page 20 3 Remove cap nut CN and handle CH from car tridge assembly 11 Use wrench to remove car tridge assemblies from manifold 1 See manual 313343 for repair instructions r_255684_256980_312749_18a FIG 6 4 Clean all parts thoroughly in a compatible solvent Use a soft bristle brush to clean the manifold pas sageways 18 Remove Restrictor 1 Note number of turns from open to closed position Remove restrictor housing 19 from manifold 1 2 Place restrictor housing 19 in a vice and remove nut 20 DPDq 20 r_255684_256980_312749_9a 3 Unscrew stem 18 clockwise and remove from restrictor housing 19 19 r_255684_256980_312749_10a FIG 8 4 Remove and inspect o rings 16 17 Replace as necessary 5 Remove set screw 15 and seat 14 from manifold 1 r_255684_256980_312749_11a 312749G Assemble Restrictor 1 Insert seat 14 with larger tapered end facing up in manifold 1 20 19 kS 18 J 16 black 17 white y 15 14 Fic 10 2 Apply blue thread lock to external threads of set screw 15 and install in manifold 3 Install o rings 16 17 on stem 18 and insert stem into restrictor housing 19 Turn stem 18 coun ter clockwise until in open position 16 black 17 white r_2556
29. rized 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 purcha
30. ser with reasonable assistance in making 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 reconnaissent 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 For the latest information about Graco products visit www graco com For patent information see www graco com patents TO PLACE AN ORDER contact your Graco distributor or call to identify the nearest distributor Phone 612 623 6921 or Toll Free 1 800 328 0211 Fax 612 378 3505 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 Ori
31. um working pressure or temperature rating of the lowest rated system component See Technical Data in all equipment manuals Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturer s warnings For complete information about your material request MSDS forms from distributor or retailer Check equipment daily Repair or replace worn or damaged parts immediately with genuine manu facturer s replacement parts only Do not alter or modify equipment Use equipment only for its intended purpose Call your distributor for information Route hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep children and animals away from work area Comply with all applicable safety regulations SKIN INJECTION HAZARD High pressure fluid from gun hose leaks or ruptured components will pierce skin This may look like just a cut but it is a serious injury that can result in amputation Get immediate surgical treatment e Do not point gun at anyone or at any part of the body Do not put your hand over the spray tip Do not stop or deflect leaks with your hand body glove or rag Do not spray without tip guard and trigger guard installed Engage trigger lock when not spraying Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning check
32. unded solvent hose e Air compressor Follow manufacturer s recom mendations e Spray gun dispense valve ground through con nection to a properly grounded fluid hose and pump e Fluid supply container follow local code e Object being sprayed follow local code e Solvent pails used when flushing follow local code Use only conductive metal pails placed ona grounded surface Do not place the pail on a non conductive surface such as paper or cardboard which interrupts grounding continuity e To maintain grounding continuity when flushing or relieving pressure hold metal part of the spray gun dispense valve firmly to the side of a grounded metal pail then trigger the gun valve Flush Before Using Equipment The equipment was tested with lightweight oil which is left in the fluid passages to protect parts To avoid con taminating your fluid with oil flush the equipment with a compatible solvent before using the equipment See Flush page 12 312749G Operation Pressure Relief Procedure AS 2 Follow pressure relief procedure when you stop spray ing or dispensing and before cleaning checking ser vicing or transporting equipment Relieve A and B Fluid Pressure 1 Engage trigger lock Z ti1949a 2 Press Stop 2 to turn off sprayer 3 Close all air motor supply valves or any source of fluid pressure 4 Open A and B circulation valves if equipped See Fic 3
33. ying page 14 Static mixer and or whip hose plugging Replace restrictor up Clean Static Mixers page 20 Clean spray gun and tip See gun man ual Low pressure from sprayer Check air supply pressure Check inlet air gauges while spraying Cold material Increase heat See XM Plural Compo nent Sprayer Operation manual 312359 Too much pressure drop Use larger hoses or more heat Resin or hardener does not shut off Damaged ball or seat or seal in valve Replace or rebuild valve 11 See repair 11 section of High Flow Severe Duty Shutoff Check Valve manual 313343 Spray pattern developing tails Off ratio condition after increasing spray Hoses not volume balanced Volume balance A and B remote material pressure in spray mode with a remote mix hoses closer to volume mix ratio See manifold Volume Balancing the Mix Manifold page 14 312749G 17 Repair Repair AN Follow Pressure Relief Procedure when you stop spraying and before cleaning checking servicing or transporting equipment Read warnings in your sprayer manual NOTICE Be sure to label all fluid parts resin or hard ener when disassembling them Doing so pre vents interchanging resin and hardener parts during reassembly which will contaminate the materials and the fluid path through the equip ment Color coded chemically resistant tape may be used to label the parts Use blue for resin and g
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