GFG HD - Finishing Brands Europe
Contents
1. DEVILBISS SB E 2 811 ISS 03 CE oN2GX Technical Bulletin GFG HD Gravity Spray Gun Table of Contents Topic Page EC Declaration of Conformity 3 Part Numbers 3 Operational Description 3 Kit contents 4 Construction Features 4 Materials of Construction 4 Specifications amp Technical Data 4 Safety Precautions 5 Parts List 6 Exploded parts View 7 Installation Operation Preventive Maintenance amp Cleaning 8 Parts Replacement Maintenance 9 A Servicing Air Valve 9 B Replacing Air Valve 10 C Needle Packing Fluid Insert Soreader Valve Assembly 11 D Spray Head Seal 12 E Chart 1 Air Caps Chart 2 Fluid Nozzles amp Fluid Needles 13 Accessories 13 Troubleshooting Possible Problems in Operation 14 Warranty 15 2 2008 ITW Finishing Systems and Products EC Declaration of Conformity We ITW Finishing UK Ringwood Rd Bournemouth Dorset BH11 9LH UK as the manufacturer of the Spray gun model GFG HD declare under our sole responsibility that the equipment to which this document relates is in conformity with the following standards or other normative documents BS EN 292 1 PARTS 1 amp 2 1991 BS EN 1953 1999 and thereby conform to the protection requirements of Council Directive 98 37 EEC relating to Machinery Safety Directive and EN 13463 1 2001 council Directive 94 9 EC relating to Equipment and Protective Systems intended for use in Potentially Explosive Atmospheres protection lev2. Personnel should be given adequate training in the safe use of spraying equipment Misuse Never aim a spray gun at any part of the body Never exceed the maximum recommended safe working pressure for the equipment The fitting of non recommended or non original spares may create hazards Before cleaning or maintenance all pressure must be isolated and relieved from the equipment The product should be cleaned using a gun washing machine However this equipment should not be left inside gun washing machines for prolonged periods of time Noise Levels The A weighted sound level of soray guns may exceed 85 dB A depending on the set up being used Details of actual noise levels are available on request It is recommended that ear protection is worn at all times when spraying Operating Spray equipment using high pressures may be subject to recoil forces Under certain circumstances such forces could result in repetitive strain injury to the operator 2008 ITW Finishing Systems and Products 5 PARTS LIST A m 7 DESCRIPTION PART NO QTY DESCRIPTION PART NO Air Valve Spring Pad Retaining Ring Seal Air Valve Seal 5N 34 K5 34 K5 C1 Aircap amp Ring PROC 120 C1 K JEJ E3 Air Valve Assembly SN 402 K COES oon any Screw 38 tiger ps Fluid Nozzle See chart 2 p13 a ra SN 21 K aa Spray Head Seal kit of 2 SN 18 1 K2 42 Air Airinlet 40 K He fon re SSR eens 2 BoeyeustingSeat 2 4 amowvave for
3. if discharged to an earthed object could create an incendive spark and cause solvent vapours to ignite Only use a dampened cloth or antistatic wipes if manual cleaning is required within a hazardous area 2008 ITW Finishing Systems and Products Parts Replacement Maintenance AIR VALVE INSTRUCTIONS Servicing Air Valve Reasons to service air valve A Air valve not functioning correctly may need cleaning B Routine maintenance C Air leaks advise replacement see p10 1 Remove trigger using the tool supplied SPN 8 or TORX T20 key See fig 1 amp 2 2 Unscrew air valve using SN 28 14 mm spanner See fig 3 Remove air valve by gripping stem See fig 4 Remove spring with spring pad See fig 5 DO NOT REMOVE REAR SEAL 35 FROM GUN BODY See fig 6 6 DONOT REMOVE PLASTIC CAGE FROM AIR VALVE BODY AS THIS MAY DAMAGE THE CAGE See fig 7 7 CLEAN a Remove all paint build up See fig 8 b The 4 poppet holes must be clear See fig 9 c Stem must be free to float in poppet See fig 10 d Stem must slide through cage bore with slight resistance due to seal e Rear seal must look clean and in position in the bore See fig 6 f If any of the above cannot be rectified replace the air valve See Replacing Air Valve p10 8 Replace spring ensuring the end with the plastic bearing pad goes in first See fig 5 9 Insert air valve assembly into gun and carefully feed over the spring an
4. Finishing Systems and Products Parts Replacement Maintenance NEEDLE PACKING REPLACEMENT INSTRUCTIONS 13 Remove trigger using SPN 8 or TORX T20 driver See figs 25 amp 26 14 Remove fluid adjusting knob and needle spring with spring pad from gun See figs 27 amp 28 15 Remove fluid needle from gun body See fig 29 16 Loosen and remove packing nut using SPN 8 Key ora straight blade screwdriver See figs 30 amp 31 17 Discard old packing and packing spring if replacing Clean packing if reusing Also clean packing spring and nut See fig 32 18 Re assemble the packing See fig 32 Assemble into gunbody by hand see fig 33 and then tighten See figs 30 and 31 19 Insert fluid needle all the way into gun body seating in fluid nozzle See fig 34 20 Insert needle spring spring pad and fluid adjusting knob See figs 28 amp 27 Reinstall trigger See figs 25 amp 26 21 Trigger gun fully and screw in fluid adjusting knob until it stops Back it off 1 2 turn and gun will have full needle travel 22 Trigger gun several times to verify correct operation FLUID SUPPLY INSERT The fluid insert and seal are NOT replaceable Do not remove these parts No maintenance is required for these parts other than regular cleaning SPREADER VALVE ASSEMBLY REPLACEMENT MAINTENANCE The spreader valve assembly can be replaced if damaged Remove using SN 28 14 mm Spanner See figs 35 amp 36 Th
5. NOTE If an air adjusting valve is used at the gun inlet use DGI 501 bar Digital Gauge Some competitive adjusting valves have significant pressure drop that can adversely affect spray performance The DGI Digital Gauge has minimal pressure drop 2 Attach the gravity feed cup to the material inlet NOTE Before using the gun flush it with solvent to ensure that the fluid passages are clean OPERATION 1 Mix coating material to manufacturer s instructions and strain material 2 Fillthe cup to no more than 20 mm from the top of the cup DO NOT OVERFILL 3 Attach Cup Lid 4 Turn fluid adjusting knob 18 clockwise to prevent fluid needle movement 5 Turn spreader valve adjusting knob 23 counter clockwise to fully open 6 Adjust inlet air pressure see chart 1 p12 7 Turn fluid adjusting knob counter clockwise until first thread shows 8 Test spray If the finish is too dry reduce airflow by reducing air inlet pressure 9 If finish is too wet reduce fluid flow by turning fluid adjusting knob 18 clockwise If atomisation is too coarse increase inlet air pressure If too fine reduce inlet pressure 10 The pattern size can be reduced by turning spreader valve knob 23 clockwise 11 Hold gun perpendicular to surface being sprayed Arcing or tilting may result in uneven coating 12 The recommended spray distance is 150 200 mm 13 Spray edges first Overlap each stroke a minimum of 75 Move gun at a constan
6. SAFETY WARNINGS Fire and explosion Solvents and coating materials can be highly flammable or combustible when sprayed ALWAYS refer to the coating material supplier s instructions and COSHH sheets before using this equipment Users must comply with all local and national codes of practice and insurance company requirements governing ventilation fire precautions operation and house keeping of working areas This equipment as supplied is NOT suitable for use with Halogenated Hydrocarbons Static electricity can be generated by fluid and or air passing through hoses by the spraying process and by cleaning non conductive parts with cloths To prevent ignition sources from static discharges earth continuity must be maintained to the spray gun and other metallic equipment used It is essential to use conductive air and or fluid hoses Personal Protective Equipment Toxic vapours When sprayed certain materials may be poisonous create irritation or be otherwise harmful to health Always read all labels safety data sheets and follow any recommendations for the material before spraying If in doubt contact your material supplier The use of respiratory protective equipment is recommended at all times The type of SV equipment must be compatible with the material being sprayed gt O DPE Always wear eye protection when spraying or cleaning the spray gun O Gloves must be worn when spraying or cleaning the equipment Training
7. and screw in Fluid Adjusting Knob until it stops Back it off 1 2 turn and gun will have full needle travel 14 Trigger gun several times to verify correct operation 2008 ITW Finishing Systems and Products Parts Replacement Maintenance Chart 1 Air Caps PART No FOR AIR TECHNOLOGY MARKING ON AIR RECOMMENDED AIR FLOW CAP CAP INLET PRESSURE L min bar PROC 120 C1 K CONVENTIONAL 2 5 3 0 250 300 PROC 120 C2 K CONVENTIONAL 2 5 4 0 255 400 NOTE When removing air cap from retaining ring don t remove the Slip Ring 2 or Retaining Ring Seal 5 from the Retaining Ring Damage to the parts may occur Slip ring and Retaining Ring seal are not available as replacements Simply wipe parts clean and reassemble with new or clean air cap Chart 2 Fluid Nozzle Range amp Fluid Needle PART No ON FLUID NOZZLE PART No NEEDLE PROC 220 14 K PROC 220 16 K GFGHD 320 K PROC 220 18 K NOTE When replacing the fluid nozzle or fluid needle replace both at the same time Torque to 18 20 nm 13 15 ft lbs Don t over tighten the fluid nozzle Use SN 28 10mm Spanner supplied with the gun and check with a torque wrench ACCESSORIES DGi Digital DGI 501 BAR e Gun Stand GFV 50 F Pressure Gauge A 600 cc Mixing Spanner MC 1 K50 Cups pack of 50 10m x 8mm bore rubber air hose with 1 4 fittings be N a Pack of four MPV Swivel MPV 60 K3 a be QD fittings Cleaning Brush 4900 5 1 K3 2008 ITW Finishing S
8. ass for long durability 10 Fan Air Adjustment stepless regulation for fan to round spray Air Cap Retaining Ring allows easy rotation of air cap 11 PUIG ACIUSHNE nL ete plese rEEUlAtION Ot fug volume 3 ha Fluid Nozzle ideal for automotive topcoat systems Removable Spray Head for long gun service life A Fluid Needle grooved stem for easy removal 13 Uicieneneeale SCOR ees yale Colonie rings supplied 5 Fluid Inlet 3 8 BSP thread accepts DeVilbiss and 14 Anodised forged aluminium gun body most other cup systems ergonomic good looking amp durable easy to 6 Air Inlet universal thread accepts G 1 4 amp 1 4 NPS 500cc Acetal Cup easy clean anti static Self Adjusting Needle Packing for trouble free operation Trigger ergonomic for comfort 17 Air Valve design offers low pull force amp low pressure drop Trigger Stud amp Screw easy replacement design 18 ai ace pan poner Omen een borne applications Materials of Construction Fluid Nozzle Fluid Needle Fluid Inlet Trigger Stud Trigger Air Inlet Body Bushing Spreader Valve Body Air Valve Nut Air Cap Retaining Ring Knobs Chrome plated brass Air Valve Assembly Stainless Steel HPDE Cup Lid with Drip Free Vent avoid drips Specifications amp Technical Data Maximum Static Air Inlet Pressure Gun Air Inlet Pressure all caps with gun triggered Gun Weight gun only 585g with cup 768g 4 2008 ITW Finishing Systems and Products
9. d through the rear seal See fig 11 10 Tighten air valve assembly using fingers first and then tighten with SN 28 14mm Spanner See figs 12 amp 3 11 Replace trigger See figs 2 amp 1 12 If there is an air leak through the gun the air valve may need replacing See Replacing Air Valve 2008 ITW Finishing Systems and Products 9 Replacing Air Valve Reasons to replace air valve 10 11 12 A Air leak through the gun B Air valve not operating correctly Remove trigger using SPN 8 or TORX T20 key provided in the kit See figs 13 amp 14 Unscrew air valve using SN 28 14 mm Spanner See fig 15 Remove air valve by gripping the stem See fig 16 Remove spring with spring pad See fig 17 Hook out rear seal using Service Tool 56 See figs 18 amp 19 Clean air valve bores in gun body with the brush supplied in the kit Place new rear seal onto Service tool 56 grooves must fit in service tool form See fig 20 Push rear seal firmly into hole up to shoulder using Service tool See figs 21 amp 22 Insert new spring ensuring the end with the plastic bearing pad goes in first See fig 17 Insert air valve assembly into gun and carefully feed over the spring and through the rear seal See fig 23 Tighten air valve assembly using fingers first then tighten with SN 28 14 mm Spanner See figs 24 amp 15 Replace trigger See figs 14 amp 13 2008 ITW
10. e internal seal can be replaced and is included in the PRO 415 1 Gun Rebuild Kit 2008 ITW Finishing Systems and Products 11 Parts Replacement Maintenance SPRAY HEAD SEAL REPLACEMENT Remove air cap and retaining ring See fig 37 2 Remove fluid adjusting knob spring and spring pad See figs 38 amp 39 Remove fluid needle from gun body See fig 40 Remove fluid nozzle using SN 28 10 mm ring Spanner and the Front Plate See figs 41 42 amp 43 Remove Spray Head See fig 44 Clean Spray Head with a soft brush See fig 45 Remove Spray Head seal using a small screwdriver or pick See fig 46 8 Clean front of gun if required using a soft brush as well as the Spray Head fluid nozzle air cap and retaining ring See fig 47 9 Place a new Spray Head Seal onto the front of the gun making sure the flat on the seal is aligned with the flat in the gun See fig 48 10 Fit the Front Plate onto the Spray Head fit Spray Head to the Gunbody ensuring the flat on the underside of the Spray Head locates with the flat in the Gun Body Fit Fluid Nozzle Air Cap and Retaining Ring Torque the Fluid Nozzle to 14 16 nm Don t over torque the fluid nozzle See figs 44 43 42 41 and 37 11 Insert Fluid Needle all the way into the Gun Body seating in the Fluid Nozzle See fig 40 12 Reassemble Needle Spring Spring Pad and Fluid adjusting Knob See figs 39 amp 38 13 Trigger gun fully
11. el Il 2 G X B Holt Vice President 31 March 2008 ITW Finishing Systems and Products reserve the right to modify equipment specification without prior notice Part Numbers The GFG HD Sprayguns are available with 2 alternative Aircaps and 3 Nozzles C1 for base and clearcoat application C2 is used for higher viscocity materials The ordering code for the spray guns is Eg GFGPRO C1 14 where C1 C1 Aircap Alternative is C2 14 14 Nozzle Alternatives are 16 or 18 Operational Description This GFG HD Spray Gun is a professional quality gun designed with conventional high pressure technology IMPORTANT These Sprayguns are suitable for use with both waterbased and solvent based coating materials These guns are not designed for use with highly corrosive and or abrasive materials and if used with such materials it must be expected that the need for cleaning and or replacement of parts will be increased If there is any doubt regarding the suitability of a specific material contact your DeVilbiss Distributor or DeVilbiss direct NOTE This gun is not to be used with halogenated hydrocarbon solvents or cleaning agents such as 1 1 1 Trichloroethane or methylene chloride These solvents can react with the aluminium components used in this gun and cup The reaction can become violent and lead to an equipment explosion 2008 ITW Finishing Systems and Products 3 Kit contents Construction Features Air Cap nickel plated br
12. ial flow Material too thin Gun tilted on an angle or gun motion too slow 15 Wind fluid adjusting knob out or change to larger fluid nozzle size Clean lid and unblock vent Increase air pressure and rebalance gun Reduce air pressure Adjust to correct distance Reduce air pressure Adjust to correct distance Slow down Wind out needle adjusting screw or use larger nozzle size Replace fluid nozzle and fluid needle Clean Clean Replace fluid nozzle and fluid needle Tighten Clean Turn fluid adjusting knob clockwise or switch to smaller fluid nozzle and fluid needle size Mix correctly or apply light coats Hold gun at right angle to work and adapt to correct gun technique WARRANTY This product is covered by ITW Finishing Systems and Products Limited one year warranty ITW Finishing Systems and Products Ringwood Road Bournemouth BH11 9LH UK Tel No 01202 571111 Telefax No 01202 581940 Website address http www infoifeuro com ITW Finishing Systems and Products is a Division of ITW Ltd Reg Office Admiral House St Leonard s Road Windsor Berkshire SL4 3BL UK Registered in England No 559693 Vat No 619 5461 24 16 2008 ITW Finishing Systems and Products
13. oan 2 ps9 ewwveunng a as form E CACO a a ee E E eae Needle Spring Needle Spring 48 Valve Body 18 Fluid Adjusting Knob Fluid Adjusting Knob Knob Baffle plate SN 41 K Fluid Adjusting Knob l ry Spring amp Pad Kit PRO 3 K rm se Gravity Cup Kit GFC 501 23 Spreader Valve Adjusting Filter KGP 5 K5 Knob Needle Packing Stud and Screw kit SN 405 K5 Packing Nut 4 Spray Gun repair kit includes PRO 415 1 items marked Packing Spring amp Seal and Pin Kit kit of 5 ea Packing Nut Kit Pires items 20 22 and 24 AURR E 30 Air Valve Body o s Fo For accessories see page 13 2008 ITW Finishing Systems and Products Air Cap Retaining Ring Slip Ring Air Cap Air Cap Retaining Clip JGA 156 K5 2 J m felel ejeje H O PATENT GB2417 544 2008 ITW Finishing Systems and Products T INSTALLATION For maximum transfer efficiency do not use more pressure than is necessary to atomise the material being applied 1 Connect the gun to a clean moisture and oil free air Supply using a conductive hose of at least 8 mm I D NOTE Depending on hose length larger D hose may be required Install an air gauge at the gun handle When gun is triggered on adjust regulated air pressure to the required setting See chart 1 p12 Do not use more pressure than is necessary to atomise the material being applied Excess pressure will create additional overspray and reduce transfer efficiency
14. rect pattern Spreader adjusting valve set too high Turn in clockwise to achieve correct pattern Loose or damaged fluid nozzle seat Tighten or replace Loose or broken cup fluid nipple Tighten or replace cup Material level too low Refill Container tipped too far Hold more upright Obstruction in fluid passage Back flush with solvent Loose fluid needle packing nut Tighten Damaged fluid needle packing Replace Fluid nozzle not tight Fluid ttight Tighten to 14 Cup lid loose Push in or replace Clean Fluid leaking or dripping from cup lid Dirty cup or lid Cracked cup or lid Replace cup and lid 14 2008 ITW Finishing Systems and Products Troubleshooting Possible Problems in Operation cont Starved spray pattern Excessive overspray Dry spray Fluid leaking from packing nut Fluid leaking or dripping from front of gun Fluid dripping or leaking from bottom of cup 2008 ITW Finishing Systems and Products Inadequate material flow Blocked vent in Cup lid Low atomisation air pressure Air pressure to high Gun too far from work surface Air pressure too high Gun too far from work surface Gun motion too fast Fluid flow too low Packing worn Fluid nozzle or fluid needle worn or damaged Foreign matter in fluid nozzle Fluid needle dirty or stuck in needle packing Wrong size fluid needle or fluid nozzle Cup loose on gun Cup fluid inlet seat dirty Too much mater
15. t speed 14 Always turn off air Supply and relieve pressure when gun is not in use PREVENTIVE MAINTENANCE amp CLEANING To clean air cap and fluid nozzle brush exterior with a Stiff bristle brush If necessary to clean cap holes use a 8 broom straw or toothpick if possible If a wire or hard instrument is used extreme care must be used to prevent scratching or burring of the holes which will cause a distorted spray pattern To clean fluid passages remove excess material from cup then flush with gun wash solution Wipe the gun exterior with a dampened cloth Never completely immerse in any solvent as this is detrimental to the lubricants and life of the spray gun NOTE When replacing the fluid nozzle or fluid needle replace both at the same time Using worn parts can cause fluid leakage See page 13 Chart 2 Also replace the needle packing at this time Torque the fluid nozzle to 14 16 nm Do not over tighten CAUTION To prevent damage to fluid nozzle 8 or fluid needle 15 be sure to either 1 pull the trigger and hold while tightening or loosening the fluid nozzle or 2 remove fluid adjusting knob 18 to relieve spring pressure against needle collar CAUTION IMPORTANT the Gravity cup is made from special anti static materials but it still important to avoid generating static charges The Cup must not be cleaned or rubbed with a dry cloth or paper It is possible to generate a static charge by rubbing which
16. ystems and Products 13 Torx driver SPN 8 K2 Troubleshooting Possible Problems in Operation CONDITION CAUSE CORRECTION Heavy top or A Horn holes plugged Clean Ream with non metallic point bottom Z pattern Zu os Clean ie Obstruction on top or bottom of fluid nozzle Clean Cap and or nozzle seat dirty Clean Ream with non metallic point Left or right side horn holes plugged Clean Dirt on left or right side of fluid nozzle Heavy right or left side pattern Remedies for the top heavy bottom heavy right heavy and left heavy patterns 1 Determine if the obstruction is on the air cap or the fluid nozzle Do this by making a test spray pattern Then rotate the cap one half turn and spray another pattern If the defect is inverted obstruction is on the air cap Clean the air cap as previously instructed Also check for dried paint just inside the cap center hole opening remove by washing with solvent 2 If the defect is not inverted it is on the fluid nozzle Clean nozzle If problem persists renew nozzle Heavy A Spreader adjustment valve set too Turn out counter clockwise to centre Za low achieve correct pattern pattern a Atomising pressure too low Increase pressure Material too thick Thin to correct consistency Split spray _z4 _ Air pressure too high Reduce at regulator or gun handle pattern Fluid adjusting knob turned in too far Turn out counter clockwise to achieve cor
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