Table of Contents
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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
Model M-1265, Series B
Optimiser
HVLP Spray Gun
100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure
100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure
65 psi (444 kPa, 4.4 bar) Maximum Compliant Inbound Air Pressure
U.S. Patent Pending
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1993, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
308–293
Rev. G
Supersedes E
and PCN G
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Table of Contents
Related Manuals for Graco Optimiser 02017
Summary of Contents for Graco Optimiser 02017
- Page 1 INSTRUCTIONS-PARTS LIST This manual contains important warnings and information. READ AND KEEP FOR REFERENCE. INSTRUCTIONS Model M-1265, Series B Optimiser HVLP Spray Gun 100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure 100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure 65 psi (444 kPa, 4.4 bar) Maximum Compliant Inbound Air Pressure U.S.
- Page 2 Table of Contents Warnings ........Selection Charts .
- Page 3 PRESSURIZED EQUIPMENT HAZARD Spray from the gun, hose leaks or ruptured components can splash fluid in the eyes or on the skin and cause serious injury. Do not stop or deflect fluid leaks with your hand, body, glove or rag. Follow the Pressure Relief Procedure on page 13 when: you are instructed to relieve pressure;...
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Page 4: Selection Charts
TERMS: Light Fluid: Up to 18 seconds with No. 2 Zahn cup (20 centipoise) Medium Fluid: 19 to 28 seconds with No. 2 Zahn cup (20–64 centipoise) Heavy Fluid: Greater than 28 seconds with No. 2 Zahn cup (greater than 64 centipoise) -- 2.8 Volatile Organic Compounds, High-solid Polyurethanes, Heavy Waterborne Enamels P/N: Part number... - Page 5 CHART 1: GUN ASSEMBLIES, Series B (continued) Optional Non-HVLP Compliant Gun Assemblies With standard needle and nozzle and optional high pressure air cap Includes: Optional Complete Needle Gun Assy. Assy. Nozzle Part No. 236–023 238–217 276–293 236–024 238–218 276–294 Maximum recommended torque to install molded fluid nozzle in the spray gun is 35 in-lbs (4 N m). See atomizing air pressure chart on page 7.
- Page 6 CHART 3: OPTIONAL ORIFICE PURGE SST NEEDLE Optional Stainless Steel Orifice-Purge Orifice Size Needle Part No. 186–931 0.042” (1.067 mm) 186–932 0.055” (1.397 mm) 186–933 0.070” (1.778 mm) 186–934 0.086” (2.184 mm) Use these needles to purge fluid out of the nozzle orifice to prevent plugging of the tip with fast drying material.
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Page 7: Air Flow And Atomizing Pressure
Air Flow and Atomizing Pressure NOTE: All tests were completed with the pattern adjustment valve fully open. Air Flow Models 236–023 & 236–024 All other models Atomizing Air Pressure (inlet pressure versus atomizing pressure) Models 236–013 to 236–016 and 236–020 to 236–028 GUN INLET PRESSURE (psi) Gun Inlet Pressure Nominal Atomizing Pressure... -
Page 8: Typical Installation
Typical Installation NOTE: See the Accessories section for accessories recommended to install the system. Model M-1265 Spray Gun See page 4 for part numbers. Fluid Inlet; 3/8 npsm (R3/8–19) Air Inlet; 1/4 npsm Air Hose Recommend 5/16” (7.9 mm) ID hose Optional 3/8”... -
Page 9: Connect The Air Line
1. Connect the Air Line NOTE: You must install an air pressure regulator (F) on the gun air line to control air pressure to the gun. See Fig. 2. If your regulated air source does not have a filter , install an air filter (G) on the air line to ensure a dry, clean air supply to the gun. - Page 10 3. Flush the Spray Gun. Before running any paint through the spray gun, flush the gun out with a solvent that is compatible with the fluid to be sprayed, using the lowest possible fluid pressure and a grounded metal container. Fig.
- Page 11 6. Adjust the Spray Pattern (continued) B. Adjust the fluid flow using the fluid pressure regulator (L) installed in the gun fluid line. Typical industrial flow rates will vary with regulator pres- sures from 5 to 10 psi (34 to 70 kPa, 0.3 to 0.7 bar).
- Page 12 6. Adjust the Spray Pattern (continued) E. Open the pattern adjustment valve (13a) by turning it fully counterclockwise for a full fan pattern. Open (wider pattern) Fig. 12 F. Using the air pressure regulator (F), set the gun air supply pressure at 50 psi (345 kPa, 3.4 bar) at the gun inlet.
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Page 13: Operation
Pressure Relief Procedure WARNING PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying acci- dentally. To reduce the risk of an injury from acci- dental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Proce- dure whenever you: are instructed to relieve the pressure,... -
Page 14: Daily Gun Care, Flushing, And Cleaning
Daily Gun Care, Flushing, and Cleaning WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury whenever you are instructed to relieve pressure, follow the Pres- sure Relief Procedure on page 13. Solvent left in gun air passages could result in a poor quality paint finish. Do not use any cleaning method which may allow solvent into the gun air passages. - Page 15 Daily Gun Care, Flushing, and Cleaning WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury whenever you are instructed to relieve pressure, follow the Pres- sure Relief Procedure on page 13. 1. Relieve the pressure. 2. Disconnect the fluid supply hose (J) from the gun; do not disconnect the air supply hose.
- Page 16 Daily Gun Care, Flushing, and Cleaning 8. Remove the air cap ring (12) and air cap (19). 9. Trigger the gun while you remove the fluid nozzle (20) from the gun with the gun wrench (35). 12, 19 Fig. 5 CAUTION Trigger the gun whenever you tighten or remove the nozzle.
- Page 17 Daily Gun Care, Flushing, and Cleaning 14. Trigger the gun while you install the fluid nozzle (20) with the gun wrench (35). CAUTION When tightening the nozzle, do not exceed 35 in-lbs (4 N m) torque. Over-tightening the nozzle can cause the nozzle hex to round, can affect the spray pattern, and is unnecessary to guarantee a seal.
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Page 18: Troubleshooting
WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury, follow the Pressure Relief Procedure on page 13 before checking or repairing any part of the gun or sys- tem. PROBLEM Fluid flow is fluttering while spraying Fluid flow fades while spraying high viscosity fluids No round pattern control Pattern becomes off-set or heavy... - Page 19 Notes 308–293...
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Page 20: Items Needed For Service
Items Needed for Service Gun Wrench – provided Seal Installation Tool – provided Adjustable Wrench Screw Driver Lubricant part no. 111–265; see Accessories to order Compatible Solvent NOTE: Gun Repair Kit 236–007 is available. The kit in- cludes the air valve assembly (14), ring packing (22) u-cup seals (32, 33), and packing assembly (39). - Page 21 CAUTION Do not use excessive force to push out the packing assembly (39) or the u-cup seal (33) as this may bend the fluid needle (21). Refer to Fig. 3 and 4. If packings are difficult to remove, use a 3/16 in. plastic rod to push them out.
- Page 22 Assembly 1. Insert the fluid needle (21) through the front of the gun as shown in Fig. 6. Install the new packing assembly (39) by placing them on the end of the needle tip. Orientate the packings as shown in Fig.
- Page 23 8. Tighten the packing adjustment screw (31) with the gun wrench (35), as shown in Fig. 10, until you can feel a slight drag on the fluid needle. Do not over- tighten the screw as this may bind the needle movement.
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Page 24: Parts Drawing
Lightly lubricate Lightly lubricate threads Torque to 25–35 in-lbs (2.8–4.0 N m) Be sure the baffle protrusion is properly inserted into the gun insert hole before tightening the nozzle Torque to 10–15 in-lbs (1.1–1.7 N m) 308–293 Parts Drawing U-cup lips face air valve (14) U-cup lips face spring (16) Optional gun hook to replace plate (34) Torque to 35–40 in-lb (3.9–4.5 N m) -
Page 25: Parts List
Part No. 236–013 to 236–016, Series B M-1265 Standard HVLP Spray Gun With standard needle, nozzle, and air cap Includes items 1–42 Part No. 236–020 to 236–028, Series B M-1265 Optional HVLP Spray Gun With optional needle, nozzle, and air cap Includes items 1–42 Part No. - Page 26 Cleaning Brush 105–749 For use in cleaning gun Lubricant 111–265 One 4 oz. (113 gram) tube sanitary (non-silicone) lubricant for fluid seals and wear areas. Fluid Tube Kit 236–318 Allows air and fluid hoses to be more easily strapped together and eases gun movement by the operator.
- Page 27 SST Pressure Cup Kit 235–374 with double air regulator 1 qt. (0.95 liter) capacity, 304 stainless steel cup. Includes a pressure relief valve, a 0–100 psi (0–0.7 MPa, 0–7 bar) air regulator for gun atomization, and a 0–15 psi (0–104 kPa, 0–1.0 bar) air regulator for the 1 qt.
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Page 28: Technical Data
Low Pressure SST Pressure Tanks For fluid pressures up to 15 psi (104 kPa, 1.0 bar) Tank Size Low Pressure Tank gallons (liters) 5 (19) 236–143 10 (38) 236–144 15 (57) 236–145 Low Pressure Tank Dimensions 6.39 in. (163 mm) 308–293 Accessories High Pressure SST Pressure Tanks... - Page 29 Notes 308–293...
- Page 30 Notes 308–293...
- Page 31 Notes 308–293...
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Page 32: Graco Warranty And Limitation Of Liability
Graco Warranty and Limitation of Liability WARRANTY Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. 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 defec- tive.