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INSTRUCTIONS-PARTS LIST
This manual contains important
Model AA2000
High Efficiency Low Pressure” System
Air-Assisted Airless Spray Gun
Part Number 222-615, Series C
950 psi (66 bar) Maximum Working Fluid Pressure
100 psi (7 bar) Maximum Working Air Pressure *
10 psi (0.7 bar) Maximum Operating Air Pressure**
* The Maximum Workina Air Pressurq indicates the maxi-
mum air pressure the gun was designed to operate safely
under.
**The /&@num Operating Air Pressure indicates the maxi-
mu
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Table of Contents .............................. 11 Troubleshooting SafetyWarnings ............................... 3 Service Installation ............................ 12 Air Valve Service .................. 12 Fluid Packing Replacement ..................... Ventilate the Spray Booth 6 ........................ Required Accessories 6 14 Parts ........................................ Connect the Air Line ......................... 7 Connect the Fluid Line ....................... 7
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WARNINGS High Pressure Spray Can Cause Serious Injury. For Professional Use Only. Observe All Warnings. Read and understand all instruction manuals before operating equipment. FLUID INJECTION HAZARD General Safety Diffuser This equipment generates very high fluid pressure. The gun diffuser breaks up spray and reduces the Spray from the gun, leaks or ruptured components risk of fluid injection when the tip is not installed. can inject fluid through your skin and into your body Check di
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Static electricity is created by the flow of fluid through Air compressors and hydraulic power supplies: the pump and hose. If every part of the equipment is ground according to the manufacturer’s recom- not properly grounded, sparking may occur, and the mendations. system may become hazardous. Sparks can ignite 4. Spray gun: obtain grounding through connection fumes from solvents and the fluid being sprayed, dust to a properly grounded fluid hose and pump. particles and other flammable
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General Safety System Pressure Any misuse of the equipment or accessories, such as The High Efficiency Low Pressure System 2500 overpressurizing, modifying parts, using incompatible AA2000 spray gun has a 950 psi (66 bar) Maximum chemicals and fluids, or using worn or damaged Fluid Working Pressure and 100 psi (7 bar) Maximum parts, can cause them to rupture and result in serious Working Air Pressure (indicates the maximum air pres- injury, including fluid injection and splashing fluid in
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Installation KEY G Pump Ground Wire A Gun Air Inlet H Air Line Filter B Gun Fluid Inlet J Fluid Drain Valve C Bleed-Type Master K Gun Air Hose Air Valve L Gun Fluid Hose D Main Air Supply Line M Fluid Regulator Kit E Pump Air Regulator N Fluid Filter F Gun Air Regulator, P Air Pressure p/n 110-776, 10 psi (0.7 bar)Maximum Relief Valve Outlet Pressure Fig. 1 The typical installation shown in Fig.1 is only a guide Required Accessories for selecting and installing air-assisted
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Installation Install fluid drain valve(s) (J) to help relieve fluid Connect the Air Line pressure. Install an air line filter (H) to ensure a clean, dry air supply to the gun. Dirt and moisture in the line can ruin the appearance of your finished piece. NOTE: The gun fluid connector (6) has a l/4-18 npsm (Rl/4- 19) compound male thread that is com- Install Air Pressure Regulator 1 lo-776 (F) to control patible with NPSM and BSP female connectors. the air pressure to the gun and limit
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Operation Vertical Spray Pattern Horizontal Spray Pattern Select a Spray Tip Use the Spray Tip Selection charts on page 18, as a guide for selecting an appropriate spray tip for your application. The fluid output and pattern width depend on the size of the spray tip, the fluid viscosity, and the fluid pressure. NOTE: When spraying very low viscosity fluids, use the optional fluid needle 220-413 (see page 15). The standard needle may not provide positive shut off for such fluids. Inst
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Operation 4. When applying the fluid, keep the gun a consis- Adjust the Spray Pattern & Apply tant distance, 8 to 10 inches (200 to 250 mm), the Fluid (Continued’ from the surface of the object being sprayed. Always hold the gun at a right angle from the sur- 1. Increase the fluid pressure just to the point where face. Do not make an arc with the gun as it a further increase in fluid pressure does not sig- causes an uneven coat of fluid. See Fig. 5. nificantly improve fluid atomizatio
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Operation 5. Hold a metal part of the gun firmly against a Flush the Gun Daily grounded metal waste container and trigger the gun until all traces of paint are removed from the WARNING gun passages. See Fig. 6. Dressure Relief Procedure To reduce the risk of serious injury, including fluid 6. Follow the Pressure Relief Procedure Warning njection, splashing in the eyes or on skin, or injury at left. ‘ram moving parts, always follow this procedure Nhenever the pump is shut off, when c
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Troubleshooting WARNING I To reduce the risk of serious injury, including fluid injection, splashing fluid or solvent in the eyes or on the skin, or injury from moving parts, always follow the Pressure Relief Procedure Warning on page 10 when- ever you shut off the pump, when checking or servicing any part of the spray system, when installing, clean- ing or changing spray tips, and whenever you stop spraying. NOTE: Check all possible remedies in the Troubleshooting Charts before disassemb
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Service Fluid Packing Replacement WARNING To reduce the risk of serious injury, including fluid 1. If leakage occurs at the back of the fluid needle injection, and splashing in the eyes or on the skin, (5), replace the needle packings (47) and inspect or injury from moving parts or electric shock, al- the needle shaft. See Fig. 7. ways follow the Pressure Relief Procedure Warning on page 10 before servicing any part of 2. Remove the air cap retainer (25), air cap (27), the gun or sys
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Service 27 SERVICE NOTES: Gasket (33) must be replaced if fluid connector (67 or l-see page 14) is removed or replaced. A Fluid leakage into air chambers may result if new gasket is not installed. An/ . A Lubricate threads A Apply anaerobic pipe sealant to threads Apply high strength sealant to threads A Thread nut to bottom thread of needle A A U-cup lips face inward A Torque to 23-27 ft-lb (31-37 Nom) A Torque to 20-24 ft-lb (27-32 Nom) Torque to 15- 19 ft-lb (20-26 Nom) A To
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18 26 28 \ 3 67 A A 32 SERVICE NOTES (See Fig. 7 for additional Informatlon): A Gasket (33) must be replaced if fluid connector (67 or 1) is removed or replaced. Fluid leakage into air chambers may result if new gasket is not installed. Lubricate threads A For Direct Hose Connection Torque to 23-27 ft-lb (31-37 Nom) A (Paris shipped unassembled) A Torque to lo-14 ft-lb (14-19 Nom) 14 307-947
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Use Only Genuine Grace Parts and Accessories. Ref. Ref. No. Part No. Description No. Part No. Description Qty- Qty* 30* 217-300 DIFFUSER-SEAT 1 1 178-415 CONNECTOR, fluid 32 178-414 SEPARATOR, air 1 (not assembled) 1 33* 178-422 GASKET, fluid, Delrin@ 2 106-917 ADAPTER, air 1 (1 sent unassembled) 3 3 178-454 TRIGGER, gun 1 47*$1 218-042 PACKING KIT, needle, Delrin & 5*A 217-488 NEEDLE, fluid 1 UHMW polyethylene 7 217-489 VALVE, pattern adjustment; 49 178-767 NUT, needle, air In
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Accessories Use Only Genuine Grace Parts and Accessories Fluid Filters Fluid Pressure Regulator 222-121 7500 psi (705 bar) Maximum fluid /n/et Pressure 3000 psi (207 bar) Maximum Working Pressure 214-570 with carbon steel bowl and support. 150-1200 psi (10.5-84 bar) Regulated Pressure 218-029 with aluminum bowl and support. Stainless Steel To convert Standard Fluid Pressure Regulator Stainless Steel Screens 206-661 to 1000 psi (70 bar) working pressure, 167- 024 595 micron (30 mesh) o
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Accessories Use Only Genuine Grace Parts and Accessories 1O:l Monark Pump 217-523 Air Pressure Verification Kit 224-250 For use in checking air cap pressure at various gun 950 psi (66 bar) Maximum Working Pressure inlet pressures. Do not use the air cap for spraying. Assemble the kit as shown in the drawing below. Wall Bracket 206-220 Install the air cap on the gun. Turn on the air to the gun, then actuate the gun and read the resulting air Cart 208-210 cap pressure. The air cap pres
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Spray Tip Selection STANDARD SPRAY TIPS *Light to *Light to Inches Medlum *Heavy Inches Medium *Heavy Orlflce Fan Wldth Vlscoslty vlscoslty Orlflce Fan Wldth vlscoslty vlscoslty Size at 12” A oz/mln fl oz/mln Part Size at 12” 11 odmln fl oz/mln Part Inches) (300 mm) (Ilters/mln) (Iiterslmln) No. Inches) (300 mm) (Ilters/mln) (Iiters/mln) No. 0.007 2-4(50-100) (04; 182-107 0.017 4-6(1W-150) 182-207 S-8(150-200) 182-307 8-10(2W-250) 8-10(2W-250) 182-407 lo-12(250-300) 0.009 4-6(1W-150)
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Dimensions Technical Data Maximum Working Fluid Pressure . . . 950 psi (66 bar) *Maximum Working Air Pressure . . . . . . . 100 psi (7 bar) **Maximum Operating Air Pressure . . . . . 10 psi (0.7 bar) Weight (less filter) . . . . . . . . . . . . . . . . . . 1.2 lb (0.55 Kg) Stainless Steel, Carbide, Ultra Wetted Parts . . . . . . . Molecular Weight High Polyethylene, PTFE PTFE PTFE Delrin@ and De/h@ are registered trademarks of the PTFE PTFE PTFE DuPont co. ,9 In *The MAX/MUM WORKlN
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The Grace Warranty and Disclaimers WARRANTY Waco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Grace distributor to the original purchaser for use. As purchaser’s sole remedy for breach of this war- ranty, Grace will, for a period of twelve months from the date of sale, repair or replace any part of the equipment proven defective. This warranty applies only when the equipment is install
