Graco Inc. 295530 Paint Sprayer User Manual
Contents
1. 32 311320G Technical Data Technical Data Category Data Maximum Fluid Working Pressure 1000 psi 7 MPa 70 bar Maximum Air Inlet Pressure 100 psi 0 75 MPa 7 5 bar Minimum Air Inlet Pressure 90 psi 0 6 MPa 6 bar Maximum Output flow rate 16 Ibs min 7 3 kg min Minimum Output flow rate 2 Ibs min 0 9 kg min Air Inlet Size x npt A Component ISO Inlet Size 5 JIC 1 2 20 UNF R Component Resin Inlet Size 6 JIC 9 16 18 UNF Length 9 25 in 24 cm Height 8 in 20 cm Width without coupling block 2 4 in 6 cm Weight 3 Ibs 1 4 kg Wetted Parts Stainless steel carbon steel brass nylon ace tal PTFE Theoretical actual results will vary with operating conditions 311320G 33 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 Graco2. 1 second bursts toward target while simultaneously with drawing valving rod adjustment screw 14 from retainer case by 1 4 turn incre ments in counterclockwise direction c Point of valving is reached when chemi cal stream mists as shown in FIG 11 Al m FIG 11 Point of Valving 4 Adjust spray pattern Note position of notch in hexhead of adjustment screw then back screw out counterclockwise the number of turns specified in Table 1 Notice spray pat 311320G tern opens as adjustment is made FIG 12 Fic 12 Opening Spray Pattern 5 Fine tune spray pattern a After you back out adjustment screw make fine adjustments 1 8 turns or less in either direction as required to obtain pattern shown in FIG 13 Moving the screw out beyond this point may cause the pattern to split as shown in FIG 14 Fic 13 Desired Pattern 311320G b Spray Pattern Adjustment Fic 14 Split Pattern If full round pattern cannot be achieved ensure that material temperature and spray pressure are correct lf pattern remains closed upon reaching maxi mum specified number of turns out from point of valving material temperature is too low If pattern splits or has hollow center even with the adjustment screw at mini mum number of turns from point of valv ing material temperature is too high Refer to FIG 12 After reaching satisfactory spray pat tern note temperatures at
3. insert new felt wiper and washer then install retaining ring Loosely thread felt wiper retainer into rear of mixing cham ber DO NOT TIGHTEN If not installing to gun block store assembly in plastic vial with corresponding cleanout spade 23 Repair Centerline Component Installation NAI gun block parts must be clean and free of damage before installation 1 Remove felt wiper assembly from rear of mixing chamber 2 Ensure internal mixing chamber parts are in place 3 Insert chamber into gun block Align key way in chamber with pin protruding from top of hole in block S gt Fic 25 Mixing Chamber Insertion 4 Press chamber into block so that flange is 1 32 1 16 in above face of gun block 1 32 in 1 16 in FIG 26 Chamber Positioning 24 5 Thread felt wiper assembly into back of mixing chamber Do not tighten CAUTION Failure to install felt wiper in rear of chamber allows internal chamber parts to fall out when chamber is tapped into place 6 With rear of gun block facing palm of your hand place mixing chamber insertion block over nose of chamber so it rests squarely on the chamber flange Firmly tap insertion block with hammer until flange of chamber is flush with face of gun block FIG 27 Chamber Insertion Block Fic 27 Chamber Seating 7 With o ring in place on underside of gun frame assemble block to frame 8 Install valving rod assembly If u
4. 304 8 mm 2 turns 3 turns 24 in 609 6 mm Table 1 Valving Rod Adjustment for Standard Mixing Chambers 14 in 355 6 mm 311320G Maintenance Maintenance Gun Service Kits Use either the 1 Quart Gun Service Kit 296980 or 3 Gallon Gun Service Kit 296981 to perform daily flushing of spray gun without disassembly FIG 16 3 Gallon Gun Service Kit For more information about the 3 Gallon Gun Service Kit see manual 311341 Fic 15 1 Quart Gun Service Kit For more information about the 1 Quart Gun Service Kit see manual 311340 311320G 17 Maintenance Clean Spray Gun Procedure Mesana Thoroughly flush gun block with gun cleaner before removing valving rod or mixing compo nents from gun block Also allow chemicals in spray gun to cool before cleaning This procedure makes use of the 1 Quart or 3 Gallon Gun Service Kit 1 Close both manual valves 2 Remove gun from coupling block 3 Attach service block of gun service kit to spray gun and then tighten using 5 16 in nut driver 4 Pressurize container to 100 psi 5 Open one manual valve on service block 6 Trigger gun while holding against a grounded waste container until there is a fine unobstructed mist of gun cleaner 7 Release trigger of gun and 1 quart kit and close manual valves on service block 8 Repeat steps 5 7 for other side of gun 9 After initial cleaning remove air cap and flush a second
5. Gun may be held within 4 in 10 2 cm of target without blowing away freshly applied foam Pattern diameter is approximately 4 in with gun 4 in 10 2 cm distance from target Output is approximately 2 to 3 1 4 pounds min 9 to 1 5 kg min 46 Size 296595 N 810 296585 L 810 296591 L 810 LM For the same uses as above These chambers have an increased output of approximately 3 to 4 1 2 pounds min 1 4 to 2 0 kg min 55 Size 296597 N 296586 L 296592 L LM Designed for stud areas of trucks and small to medium sized wall applica tions Pattern diameter is about 8 in 20 3 cm with gun 18 to 20 in 45 7 to 50 8 cm from target Output is approximately 6 to 8 pounds min 2 7 to 3 6 kg min 62 Size For very large area applications Pattern diameter is about 9 in 22 9 cm with gun 18 to 20 in 45 7 to 50 8 cm from target Output range is about 7 296598 N to 10 pounds min 3 2 to 4 5 kg min 296587 L 70 Size For very large area applications Pattern diameter is about 10 in 25 4 cm with gun 18 to 20 in 45 7 to 50 8 cm from target Output range is about 9 296599 N to 12 pounds min 4 1 to 5 4 kg min 296588 L 78 Size For very large area applications Pattern diameter is about 14 in 35 6 cm with gun 24 in 60 9 cm from target Output range is about 13 1 2 to 16 1 2 296600 N pounds min 6 1 to 7 5 kg min 297592 L 311320G 29 Parts Air C
6. Spadex page 31 Tool Kit 295530 D 55 296579 296597 296634 295934 295887 296636 D 55 295531 RECIRC 296579 296597 296634 295934 295884 296636 295532 D 62 296580 296598 296634 295935 295887 296636 295533 D 70 296581 296599 296635 295935 295887 296636 Table 1 Model D Gun Assembly Parts by Model Number 311320G 27 Parts Mixing Chamber Size Reference Size 46 55 62 70 78 K valving rod 296578 296579 296580 296581 296582 296594 N 800 296597 N 296598 N 296599 N 296600 N 296595 N 810 296586 L 296587 L 296588 L 297592 L 296584 L 800 296592 L LM 296590 L 800 LM 296585 L 810 AC chamber 296591 L 810 LM AK air cap 296838 296634 296634 296635 296635 Cleanout 297007 295934 295935 295935 295935 spade pack of 2 pack of 2 pack of 2 pack of 2 pack of 2 Table 2 Model D Gun Assembly Parts by Mixing Chamber Size 28 311320G Parts Standard Mixing Chambers Six standard mixing chambers are available The following table provides a general description about use and operational performance of each chamber Actual pattern sizes and outputs achieved may vary depending on material viscosity hose length condition of equipment environ ment working pressure and additional factors 46 Size 296594 N 800 296584 L 800 296590 L 800 LM Designed for operation in confined areas and for spraying 3 8 to 1 2 in 7 to 1 3 cm thicknesses
7. cham ber in gun cleaner Mixing Chamber Chamber Knockout Tool Fic 22 Mixing Chamber Removal CAUTION Matching tapers on mixing chamber and center hole in gun block are machined to an exact fit to hold chambers in place and cre ate a leak proof seal When handling or cleaning these parts be careful not to dam age finish Do not use metal tools to clean these parts 12 Remove closure screw in top of gun block Place screw in gun cleaner and clean entire gun using appropriate cleanout tools and brass brushes Then flush thoroughly with gun cleaner 13 Disassemble check valve assemblies Screw FIG 23 Check Valves 311320G a Remove ball and spring assembly Hold ball and unscrew assembly If dirt or material build up prevents complete removal of the spring screw it back in Soak assembly in gun cleaner and try to remove it again If ball and spring assembly cannot be removed undam aged replace it Use check valve cleanout drill to clean inside of closure screw Insert the flat tened end of cleanout drill into opening at end of screw avoiding spurs in the closure screw Do not spin drill until the flat on the drill has cleared spurs Spin drill with your fingers to loosen any buildup then remove drill and flush inside of screw with gun cleaner Next check area where ball seats for dam age Also check sleeve for damage it should fit tightly on the end of the screw If ther
8. low Clean Spray Gun Procedure page 18 NOA If fluid in hose and proportioner is still under pressure follow Pressure Relief Procedure in proportioner manual To relieve pressure in hose after gun is removed place fluid manifold over containers facing away from you Very carefully open fluid valves Under high pressure fluid will spray sideways from fluid ports 311320G Pressure Relief Procedure Spray Pattern Adjustment Spray Pattern Adjustment NG This adjustment may create a large mass bun of urethane foam Very high tempera tures created by chemical reaction inside a bun may not dissipate after outside surface has cooled A large bun may continue to react for several hours after spraying until flash burning point of foam is reached ALWAYS break buns into smaller pieces so heat can escape 1 Check valving rod clearance in closed posi tion Rod should extend approximately 1 32 in 1 mm beyond tip of mixing chamber If it does not see Valving Rod Adjustment procedure page 21 1 32 in sa pi LES Sa Fic 10 Valving Rod Closed Position 2 Adjust valving rod travel to initial setting a Loosen friction lock Turn valving rod adjustment screw clockwise until it stops b Turn valving rod adjustment screw 11 times counterclockwise 3 Locate point of valving a Aim gun at disposable target b Dispense short
9. proportioner and hose and position of notch on the adjustment screw As spraying pro ceeds pattern may occasionally streak or change If this happens inspect chamber tip and remove any build up of solid foam with wooden stick or brass wire brush 15 Spray Pattern Adjustment e If buildup recurs shortly after cleaning tip remove air cap and ensure inside is clean Reinstall air cap and ensure airflow is properly set If no buildup occurred on air cap check the fol lowing items in this order and readjust if neces sary e Check Valving Rod Adjustment Screw Sleeve setting Chamber Turns Out From Point of Valving Minimum Maximum Check hose temperature setting Check primary heater temperature setting Ensure spray pressures between chemi cals are balanced If they are not refer to Troubleshooting section of Proportioning Unit Operation Manual for the proportioner in use Ensure flow of air to air cap is adequate but not excessive Recommended Distance of Gun from Surface Pattern Size 1 2 turn 2 turns 12 in 304 8 mm 6 in 152 4 mm 1 2 turn 2 turns 12 in 304 8 mm 6 in 152 4 mm 1 3 4 turns 2 5 8 turns 18 to 20 in 457 2 to 508 mm 8 in 203 2 to 228 6 mm 2 turns 3 turns 18 to 20 in 457 2 to 508 mm 8 to 9 in 203 2 to 228 6 mm 2 turns 3 turns 18 to 20 in 457 2 to 508 mm 10 to 12 in 254 to
10. 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 authorized 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
11. time to ensure thorough cleaning 10 Remove service block of gun service kit from spray gun 11 Disconnect air supply 18 12 Clean screens check valves and screen screw See Filter Screw Removal and Ser vice procedure page 19 N Inspect air cap mixing chamber and gun block for build up of material and clean as required Do not use metal cleaning devices to clean plastic components 311320G Repair BA AN Shut down proportioner and allow chemicals to cool before performing any repair proce dures Clean Center Line Components using Gun Service Kit prior to performing any repair pro cedures Filter Screen Removal and Service 1 Perform Pressure Relief Procedure page 13 and Clean Spray Gun Procedure page 18 2 Unthread screen mounting screw Remove screen mounting screw and filter screen assembly from gun block Screen Screw N pa Seal Screen Snap Ring Mounting Screw FIG 17 Filter Screen Assembly 3 Remove screen screw retainer snap ring at end of screw and screen If screen is dirty and clogged replace it 311320G Repair 4 Clean and inspect screen cavity If particles are visible remove with cleanout drills and flush thoroughly with gun cleaner CAUTION Any remaining material in cavity on down stream side of screen will clog mixing cham ber 5 Inspect seal and replace if worn or dam aged 6 Reinstall f
12. Operation Parts Service and Repair a GRACO ENG Model D Spray Gun 311320G For use with non flammable polyurethane foams For professional use only Not for use in explosive atmospheres See page 2 for model information 1000 psi 7 MPa 70 bar Maximum Working Pressure Important Safety Instructions g Read all warnings and instructions l in this manual Save these instructions GRACO GUSMER Hoos PROVEN QUALITY LEADING TECHNOLOGY Models Contents Models aa a NATA AA Ee 2 Warnings is sociale Rea 3 Overall View L Li 5 Major Components 5 Centerline Components 6 Operation Basics 7 Isocyanate Hazard 7 Keep A and B Components Separate 7 Grounding LL 7 Coupling Block 0000 eee eee 7 Air Hose Connection 9 Valving Rod Adjustment Screw 9 Air Cap Adjustment Valve 10 Felt Wiper i a Ban dh eh and bed 10 Initial Set UP eee eee 11 Daily Start Up 0 12 Daily Shutdown 0 0 12 Pressure Relief Procedure 13 Models Spray Pattern Adjustment Maintenance Gun Service Kits Clean Spray Gun Procedure Repair Filter Screen Removal and Service Clean Injection Slots Valving Rod Adjustment Centerline Component Removal Centerline Component Ins
13. a FS LZ i e FIG 9 Valving Rod Closed Position 3 Adjust valving rod travel to initial setting a Loosen friction lock Turn valving rod adjustment screw clockwise until it stops b Turn valving rod adjustment screw 11 turns counterclockwise 4 Connect air supply hose to gun 5 Connect A isocyanate hose red taped to notched fitting on coupling block Then con nect R resin hose blue taped to fitting without notches on coupling block 6 Close both manual valves 7 Pressurize the A and R chemical hoses and check for leaks See Proportioning Unit manual 8 Bleed air from chemical hoses a Hold coupling block with exit ports pointed into disposable container 311320G Initial Set Up b Open each manual valve to allow trapped air to escape Bleed each side until chemical is free of air c Close both manual valves 9 Use clean cloth soaked in gun cleaner to wipe clean coupling block and its mating surfaces CAUTION To avoid accumulation of dirt and other con taminants do not apply grease to mating surfaces of coupling block 10 Install coupling block to gun block 11 Proceed with Daily Start up procedure or Shutdown procedure as required Daily Start Up Daily Start Up Ensure gun is attached to coupling block and air hose and the proportioning unit is at desired temperature and pressure 1 Connectair supply to gu
14. an check valves page 22 Install tall hexhead check valve on Isocya nate side and short hexhead on Resin side 10 Adjust valving rod adjustment screw one turn clockwise 311320G Valving Rod Adjustment In closed position valving rod should extend approximately 1 32 in 1 mm beyond tip of mixing chamber If it does not follow this pro cedure 1 32 in Fic 19 Valving Rod Closed Position 1 Perform Pressure Relief Procedure page 13 and Clean Spray Gun Procedure page 18 2 Disconnect air supply from gun 3 Remove spring retainer case Firmly grasp spring retainer case push in and rotate counterclockwise Pull spring out of air cyl inder Spring Retainer Case Spring Fic 20 Retainer Case Removal 4 Loosen felt wiper retainer 2 3 turns DO NOT REMOVE 311320G Repair 5 Remove valving rod Push back firmly on piston rod until end of Stop Bar emerges from cylinder Positioner FIG 21 Valving Rod Removal 6 Loosen stop bar from positioner Turn posi tioner to adjust length of valving rod as required Retighten stop bar against posi tioner 7 Replace valving rod spring and spring retainer case Grasp firmly push in and turn clockwise to lock in place 8 Adjust felt wiper and soak with gun cleaner 9 Connect air supply to gun 10 Check action of valving rod With manual valves closed press trigger several times and ensure va
15. c tion lock 2 Turn adjustment screw as required and tighten friction lock until screw no longer easily turns by hand 3 Check friction lock periodically and tighten as required to prevent screw from slipping during operation FIG 6 Valving Rod Adjustment Screw Operation Basics Air Cap Adjustment Valve 3 Use 5 16 in open end wrench to tighten retainer another half turn Use to control amount of air that passes through air cap and over mixing chamber tip Airflow helps keep tip free of sprayed chemical Too much air may distort spray pattern and create overspread Too little air will not prop erly clean end of valving rod To OPEN valve turn knob approximately 1 8 turn counterclockwise To CLOSE valve turn knob fully clockwise FIG 8 Felt Wiper Clean Felt Wiper 1 Insert nozzle of flush can into holes of felt wiper Open Sis FIG 7 Air Valve Adjustment 2 Saturate felt with gun cleaner Felt Wiper Adjust Felt Wiper 1 Use 5 16 in open end wrench to loosen retainer slightly 2 Slowly tighten it by hand until it seats against rear packings in mixing chamber 10 311320G Initial Set Up Meaga 1 Remove coupling block from gun 2 Check valving rod clearance in closed posi tion Rod should extend approximately 1 32 in 1 mm beyond tip of mixing chamber If it does not see Valving Rod Adjustment procedure page 21 1 32 in s
16. closed may cause crossover if gun ports contain residual chemical Never open manual valves unless coupling block is secured to gun or exit port is directed into flush pail 1 Open manual valves using 5 16 in nut driver turn manual valves counterclock wise approximately three full turns Do not open until it bottoms out 2 Close manual valves by turning fully clock wise Fic 4 Manual Valves Remove Coupling Block To prevent release of pressurized chemical close both manual valves before removing coupling block 1 Disconnect air hose 2 Close both manual valves 3 Remove coupling block mounting screw FIG 3 4 Separate coupling block from gun Do not lose gaskets 5 Use gun cleaner to wipe clean mating sur face of gun block and coupling block Cover exposed opening with grease 311320G Air Hose Connection To CONNECT air hoses pull back sleeve of female fitting insert male fitting and slide sleeve forward to secure connection To DISCONNECT air hoses pull back sleeve of female fitting and remove male fitting Pull Sleeve Fic 5 Air Hose Connection 311320G Operation Basics Valving Rod Adjustment Screw Use to regulate amount of valving rod travel when gun trigger is depressed with air supply connected Turn clockwise to decrease travel and counterclockwise to increase travel 1 Use 5 64 in hex key wrench to loosen fri
17. ds of the fluids you are using e Store hazardous fluid in approved containers and dispose of it according to applicable guidelines 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 surgi cal 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 Follow Pressure Relief Procedure in this manual when you stop spraying and before cleaning checking or servicing equipment HA 311320G 3 Warnings 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 e Use equipment only in well ventilated area e Eliminate all ignition sources such as pilot lights cigarettes portable electric lamps and plastic drop cloths potential static arc e Keep work area free of debris including solvent rags and gasoline e Donot 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 sta
18. e is damage or if the sleeve fits loosely replace it Replace sleeve if check valve can be threaded all the way into gun block by hand A good check valve requires the use of a 5 16 in nut driver to make the last 1 4 turn com pressing the sleeve This compression is required to create an internal seal in the gun block Remove damaged check valve sleeve Remove ball and spring Insert check valve into check valve sleeve removal block FIG 24 While holding block and keeping pressure on head of check valve slice check valve sleeve with razor knife at a 10 15 degree angle rel ative to the plane of removal block Remove check valve from block and peel sleeve off If check valve sleeve remains in gun block after removing 311320G Repair check valve use extractor tool to remove sleeve Insert threaded end of tool into cleanout port and while press ing tool into gun block turn it clockwise several times Withdraw tool from gun block sleeve should slide out with tool Check Valve Sleeve Insert Check Valve Na Fic 24 Sleeve Removal Block d Insert spring assembly into check valve and turn the screw clockwise When the spring is fully inserted stem will jump over spurs in screw and make clicking sound Ensure ball fully seats in check valve If not or ball is damaged replace with new ball and spring assembly 14 Remove retaining ring washer and felt wiper from retainer Flush retainer with gun cleaner
19. ecautions related to isocyanates Prevent inhalation of isocyanate mists vapors and atomized particulates by provid ing sufficient ventilation in the work area If sufficient ventilation is not available a sup plied air respirator is required for everyone in the work area To prevent contact with isocyanates appro priate personal protective equipment includ ing chemically impermeable gloves boots aprons and goggles is also required for everyone in the work area Keep A and B Components Separate CAUTION To prevent cross contamination of the gun s wetted parts do not interchange A compo nent isocyanate and B component resin parts The gun is shipped with the A side on the left 311320G Operation Basics Grounding ma Check your local electrical code and propor tioner manual for detailed grounding instruc tions Ground the spray guy through connection to a Graco approved grounded fluid supply hose Coupling Block Install Coupling Block 1 Inspect coupling block gaskets for damage and wear Replace if necessary 2 With gaskets in place fit coupling block to gun block 3 Insert coupling block mounting screw and tighten securely with 5 16 in nut driver Coupling Block Gaskets A SS NAT AY 7 S J Coupling Block Mounting Screw PA Fic 3 Coupling Block Operation Basics Manual Valves Ay Tiggering gun with manual valves
20. ilter screen assembly With seal in place install screen and retainer clip on screen screw 7 Install screen assembly to gun block Ensure screw is tight to prevent leakage 8 Flush gun after cleaning cavity and screen See Clean Spray Gun Procedure page 18 19 Repair Clean Injection Slots 1 Perform Pressure Relief Procedure page 13 and Clean Spray Gun Procedure page 18 Remove check valves A Iso Check Valve tall hexhead bo Cc I Clean out Port both sides R Resin Check Valve short hexhead Fic 18 Check Valves Inspect check valves to ensure sleeve is secured and place check valves in sepa rate containers of gun cleaner Flush cleanout ports with gun cleaner Turn valving rod adjustment screw one full turn counterclockwise to ensure valving rod will be withdrawn completely past injection slot Clean mixing chamber injection slots With air supply connected to gun depress and hold trigger to keep valving rod in open position Insert appropriate cleanout spade into cleanout hole and mixing chamber CAUTION To prevent damage to chamber do not release trigger while cleanout spade is in chamber slot 20 Flush injection slots With valving rod in open position flush each injection slot with gun cleaner Press flush can needle firmly into cleanout hole to create seal Continue until gun cleaner sprays out chamber tip Inspect and cle
21. ir convenu que la redaction du pr sente document sera en Anglais ainsi que tous documents avis et procedures judiciaires ex cut s donn s ou intentes a la suite de ou en rapport directement ou indirectement avec les proc dures concern es Graco Information For the latest information about Graco products visit www graco com 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 Original instructions This manual contains English MM 311320 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 2006 Graco Inc is registered to ISO 9001 www graco com Revised 02 2010
22. ll and spring assembly Of 5 pack of 10 297139 Felt wiper pack of 15 and D 296091 Check valve sleeve retainer washers pack of 3 pack of 10 Z 111450 O ring 1 E 296614 Kit A check valve includes C AA 296629 iu a gasket and D pack of 10 F 296615 Kit R check valve includes C AB 296121 D gun block complete L and D pack of 10 includes G AA AP G 295592 Rollpin 1 16 x 5 16 in SST 1 AC Mixing chamber includes Y 1 H Snap ring see J 1 see Table 1 J 296616 Trigger button includes H 1 K Valving rod see Table 1 4 AD 295590 Gun frame 1 M 296617 _ Valving rod stop bar 1 N includes L AF Air cylinder see page 30 1 N 295171 Valving rod stop adjustment 1 AG 296633 Needle valve and packing kit 1 screw AJ 295182 Needle valve body 1 R R AK Air cap see Table 1 1 R 296618 Valving rod closure sprin 1 S Air UA pang 1 AL 295183 Retainer nut dust cover 1 T 296620 Pipe nipple 1 AM 296126 Gun air tube includes D U 296621 Screen screw seal ati aya i pack of 10 ir nose V 296622 7 Screen 80 mesh pack of 10 He nai i i 296623 Screen 80 mesh pack of 50 55 oupler plug A AR 295597 Coupler 1 W 295595 Snap ring 1 AS 103557 O ri 1 X 296624 Kit gun block screen screw 1 aling includes U V W AT 100030 Fitting 1 Purchase Air Valve Repair Kit 296125 purchase sep arately Includes Needle Valve Packing Kk Not shown Mixing Coupling Valving Chamber Air Cap Cleanout Block see Model No Description Rod K AC AK
23. lving rod moves freely If you have encountered no problems spray gun is ready for test spray Follow Daily Start up procedure page 12 and Spray Pat tern Adjustment procedure page 14 21 Repair Centerline Component Removal Refer to Figure 2 to view centerline com ponents 1 Perform Pressure Relief Procedure page 13 and Clean Spray Gun Procedure page 18 2 Remove air cap by hand turning it counter clockwise 3 Remove screen screw assembly Flush and place in gun cleaner 4 Remove check valves Flush and place in gun cleaner 5 Flush screen screw and check valve ports 6 Remove spring retainer case by firmly grasping knob of case Push in and rotate counterclockwise to remove from air cylin der Pull spring out of air cylinder 7 Loosen felt wiper retainer 2 3 turns DO NOT REMOVE 8 Remove valving rod Push back firmly on piston rod until end of valving rod stop bar emerges from cylinder 9 Remove gun block from frame 10 Unscrew felt wiper assembly from rear of mixing chamber Keep rear of mixing cham ber in upright position to prevent possible loss of internal chamber parts Ensure brass retaining sleeve is not stuck to felt wiper Place wiper assembly in gun cleaner 11 Remove mixing chamber Hold gun block in one hand with chamber tip pointing into your palm Insert mixing chamber knockout 22 tool into rear of gun block and tap with hammer until chamber ejects Place
24. n page 9 2 Adjust air cap valve page 10 3 Saturate felt in felt wiper with gun cleaner using flush can 4 Trigger gun multiple times to ensure valving rod moves the full travel quickly and freely CAUTION Sluggish valving rod action may result in valving rod sticking in open position when fluid pressure is applied Always have a 5 16 in nut driver available to quickly close manual valves on coupling block 5 Open both manual valves page 8 6 Test spray on disposable surface and adjust spray pattern as needed See Spray Pattern Adjustment procedure page 14 Do not exceed 1000 psi 7 MPa 70 bar maximum fluid working pressure even in static de triggered conditions or check valve damage may result 12 Daily Shutdown Me 4Q Aw R Follow when gun is out of service for any length of time Daily disassembly of gun for cleaning is not recommended if it has been operating properly However if you remove the gun from the coupling block flush and clean thoroughly e 1 Follow Pressure Relief Procedure page 13 2 Shut down proportioning unit as required 311320G Pressure Relief Procedure Relieve pressure before cleaning or repairing gun 1 Close both manual valves 2 Trigger gun once onto waste area to relieve fluid pressure in front end of gun 3 Disconnect gun air supply page 9 4 If gun is removed from coupling block fol
25. 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 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 avo
26. re 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 4 311320G Overall View Overall View Major Components Spring Retainer Case Valving Rod Closure Spring Valving Rod Adjustment Screw Valving Rod Stop Bar Valving Rod Gun Block Piston Rod Trigger Air Cap Adjustment Valve Coupling Block Coupling Block Mounting Screw c FIG 1 Major Components 311320G 5 Overall View Centerline Components Gun Block Mounting Screw Screen Screw DO O Ring A Iso Check Valve NY Closure ng Ko l O W a Valving Rod Assembly Felt Wiper Retainer Gun Block R Resin Check Valve f Screen Mounting Screw i Ea Coupling Block Gaskets FIG 2 Centerline Components Snap Ring a Mixing Chamber Case WON 6 311320G Operation Basics NA To prevent accidental gun operation always disconnect air supply before servicing gun or anytime gun is not in use Isocyanate Hazard is la Nw 4 2 Spraying materials containing isocyanates creates potentially harmful mists vapors and atomized particulates Read material manufacturer s warnings and material MSDS to know specific hazards and pr
27. sing new felt wiper push valving rod through felt with retainer case off chamber Remove felt wiper and any felt buildup on tip of rod Install wiper hand tighten into rear of chamber in gun block Then insert valving rod through piston in air cylinder guiding it through center of felt wiper retainer Use firm pressure to carefully push valving rod into mixing chamber until piston of air cylin der bottoms out 9 Check valving rod clearance If it does not extend approximately 1 32 in 1mm beyond tip of mixing chamber see Valving Rod Adjustment page 21 311320G 10 Replace valving rod spring and spring retainer case Grasp knob push in and turn clockwise to lock in place 11 Replace air cap 12 Replace check valves and screen screw assembly 13 Replace closure screw in top of gun block 14 Mount gun onto coupling block 15 Connect air supply to gun 16 Adjust felt wiper and soak felt with gun cleaner 17 Close manual valves and press trigger sev eral times to ensure valving rod moves freely 311320G Repair 25 Parts Parts Model D Spray Gun Assembly 311320G 26 Model D Spray Gun Assembly Parts Ref Ref No Part No Description Qty No Part No Description Qty i i Y 296611 Felt wiper assembly includes A 295591 Hex nipple 1 8 in MPT steel 1 retainer wiper washer pack B 295185 Mounting screw 1 2 in LG 2 e per p C 296090 Ba
28. tallation Parise ete kA NN A lia Model D Spray Gun Assembly Air Cylinder Assembly Coupling Block Assembly li AA Technical Data Graco Standard Warranty Graco Information Part No Description Mix Module 295530 D 55 296597 295531 D 55 RECIRC 296597 295532 D 62 296598 295533 D 70 296599 311320G Warnings Warnings The following general warnings are for the setup use grounding maintenance and repair of this equipment Additional more specific warnings may be found throughout the body of this manual where applicable Symbols appearing in the body of the manual refer to these general warnings When these symbols appear throughout the manual refer back to these pages for a description of the specific hazard Fb PERSONAL PROTECTIVE EQUIPMENT S 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 9 TOXIC FLUID OR FUMES HAZARD ARN Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin inhaled or swallowed e Read MSDS s to know the specific hazar
29. tic sparking or you feel a shock stop operation immediately Do not use equipment until you identify and correct the problem e Keep a fire extinguisher in the work area DE L EQUIPMENT MISUSE HAZARD Ls 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 e 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 com plete information about your material request MSDS forms from distributor or retailer e Check equipment daily Repair or replace worn or damaged parts immediately with genuine Graco Gusmer replacement parts only e Do not alter or modify equipment e Use equipment only for its intended purpose Call your Graco Gusmer distributor for infor mation e Route hoses and cables away from traffic areas sharp edges moving parts and hot sur faces e Do not kink or over bend hoses or use hoses to pull equipment e Keep children and animals away from work area e Comply with all applicable safety regulations 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 Pressu
30. ylinder Assembly Part Number 296632 Ref No Part No Description Qty A 107083 O ring fluoroelastomer 1 B 295494 Pan head machine screw 1 8 32 x 3 16 in C 295177 Front head blank 1 D 296627 U cup pack of 5 E 296628 U cup pack of 5 F 295178 Cylinder G 296631 Wear ring H 295179 Buttonhead cap screw J 295484 Piston assembly KA 295492 Label warning AA VA A Parts included in Air Cylinder Seal Kit 296725 purchase separately A Replacement Danger and Warning labels tags and cards are available at no cost 30 311320G Coupling Block Assembly Model 295887 Model 295887 Standard Ref No Part No A 295662 B 295888 C 295889 D 296626 E 295619 F 295693 G 295886 311320G Description Flush seal pipe plug 1 8 in R swivel fitting A swivel fitting Manual valve assembly pack of 2 Mounting screw 15 16 in Flush seal pipe plug 1 36 in Coupling block Qty A Parts Model 295884 Model 295884 Recirc Ref OTTIMO ub z Part No Description 295889 296626 295619 295693 112307 295886 295888 A swivel fitting Manual valve assembly pack of 2 Mounting screw Pipe plug Street elbow Coupling block R swivel fitting Qty N NN 31 Notes Notes
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