Graco Inc. M-1265 manual

308–293 Rev . G Supersedes E and PCN G  INSTRUCTIONS-P ARTS LIST INSTRUCTIONS This manual contains important warnings and information. READ AND KEEP FOR REFERENCE. 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 [...]

2 308–293 T able of Contents W arnings 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selection Charts 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Flow and Atomizing Pressure 7 . . . . . . . . . . . . . . . . . T ypical Installation 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

308–293 3 W ARNING 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; s[...]

4 308–293 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 V olatile Organic Compounds, High-solid Polyurethanes, Heavy W aterborne Enamels P/[...]

308–293 5 Selection Charts 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 Gun Assy . Part No. Needle Assy . P/N * Nozzle P/N { High Pressure Air Cap P/N Orifice Size Material Usage (See TERMS on page 4) 236–02[...]

6 308–293 Selection Charts CHART 3: OPTIONAL ORIFICE PURGE SST NEEDLE  Optional Stainless Steel Orifice-Purge Needle Part No. Orifice Size 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 pluggi[...]

308–293 7 Air Flow and Atomizing Pressure NOTE: All tests were completed with the pattern adjustment valve fully open. Air Flow                           #! ?[...]

8 308–293 T ypical Installation KEY A Model M-1265 Spray Gun See page 4 for part numbers. B Fluid Inlet; 3/8 npsm (R3/8–19) C Air Inlet; 1/4 npsm D Air Hose Recommend 5/16” (7.9 mm) ID hose Optional 3/8” (9.5 mm) ID hose E Air Shut-of f V alve F Air Regulator G Air Filter H Air Supply Line A B C D EF G 02018 NOTE : See the Accessories secti[...]

308–293 9 Setup 1. Connect the Air Line NOTE:  Yo u 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. Dirt and moisture can ruin the appe[...]

10 308–293 Setup 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. 5 02053 W ARNING PRESSURIZED EQUIPMENT HAZARD T o reduce the risk of a serious injury whenever you[...]

308–293 1 1 Setup 6. Adjust the Spray Pattern (continued) B. Adjust the fluid flow using the fluid pressure regulator (L) installed in the gun fluid line. T ypical industrial flow rates will vary with regulator pres - sures from 5 to 10 psi (34 to 70 kPa, 0.3 to 0.7 bar). Fig. 8 L 02059 C. Hold the gun parallel to the floor and adjust the fluid p[...]

12 308–293 Setup 6. Adjust the Spray Pattern (continued) E. Open the pattern adjustment valve (13a) by turning it fully counterclockwise for a full fan pattern.  Fig. 12 13a Open (wider pattern) Close (narrower pattern*) F. Using the air pressure regulator (F), set the gun air supply pressure at 50 psi (345 kPa, 3.4 bar) at the gun[...]

308–293 13 Operation Pressure Relief Procedure W ARNING PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying acci - dentally . T o reduce the risk of an injury from acci - dental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Proce - dure whene[...]

14 308–293 Daily Gun Care, Flushing, and Cleaning W ARNING PRESSURIZED EQUIPMENT HAZARD T o reduce the risk of a serious injury whenever you are instructed to relieve pressure, follow the Pres- sure Relief Procedure on page 13. CAUTION Clean all parts with a non-conductive solvent, com - patible with the fluid being sprayed. Conductive solvents c[...]

308–293 15 Daily Gun Care, Flushing, and Cleaning W ARNING PRESSURIZED EQUIPMENT HAZARD T o 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. Fi[...]

16 308–293 Daily Gun Care, Flushing, and Cleaning 8. Remove the air cap ring (12) and air cap (19). 9. T rigger the gun while you remove the fluid nozzle (20) from the gun with the gun wrench (35). Fig. 5 02060A 35 20 12, 19 CAUTION T rigger the gun whenever you tighten or remove the nozzle. This keeps the needle seat away from the nozzle seating[...]

308–293 17 Daily Gun Care, Flushing, and Cleaning 14. T rigger 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 S m) torque. Over-tightening the nozzle can cause the nozzle hex to round, can af fect the spray pattern, and is unnecessary to guarantee a seal. [...]

18 308–293 T roubleshooting W ARNING PRESSURIZED EQUIPMENT HAZARD T o 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 CAUSE SOLUTION Fluid flow is fluttering while spraying 1. Fluid nozzle not tight enough 2. Fluid filter clogged 3. Fluid [...]

308–293 19 Notes[...]

20 308–293 Service Items Needed for Service  Gun W rench – provided  Seal Installation T ool – provided  Adjustable W rench  Screw Driver  Lubricant part no. 1 1 1–265; 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[...]

308–293 21 Service 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. 9. Push the three piece packing assembly (39) out toward the back of the gun, with the t[...]

22 308–293 Service 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. 6. Fig. 6  21 39 1 W asher U-cup; lips face down Spreader 2 3 1 2 3 2. Place the packing adjustment [...]

308–293 23 Service 8. T ighten 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. Fig. 10 02104A 31 35 9. Install the trigger (3). T orque the screw (5) to 10–15 in-lbs (1.1–1.7 N  m). See[...]

24 308–293 Parts Drawing 02025A 12 11 15 16 8 33* 14* 3 13a 34 2 4 32* 25 19 20 13c n 13b 13d n 5 39* 31 n 6 22* 21 1 Ref No. 13 Includes items 13a–13d 35 42 1 2 3 4 4 5 6 6 1 1 1 2 7 7 3 8 8 3 21 1 Needle for standard guns Needle set for optional guns Lightly lubricate Lightly lubricate threads T orque to 25–35 in-lbs (2.8–4.0 N S m) Be su[...]

308–293 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. 236–023 and 236–024, Series B M-1265 Op[...]

26 308–293 Accessories Cleaning Brush 105–749 For use in cleaning gun Lubricant 1 1 1–265 One 4 oz. (1 13 gram) tube sanitary (non-silicone) lubricant for fluid seals and wear areas. 03405 Fluid T ube Kit 236–318 Allows air and fluid hoses to be more easily strapped together and eases gun movement by the operator . High Pressure Air Cap 189[...]

308–293 27 Accessories 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. pressure cup supply air . 01726 0[...]

28 308–293 Accessories Low Pressure SST Pressure T anks For fluid pressures up to 15 psi (104 kPa, 1.0 bar) High Pressure SST Pressure T anks For fluid pressures up to100 psi (700 kPa, 7 bar) T ank Size gallons (liters) Low Pressure T ank P/N Low Pressure T ank with Agitator P/N High Pressure T ank P/N High Pressure T ank with Agitator P/N 5 (19)[...]

308–293 29 Notes[...]

30 308–293 Notes[...]

308–293 31 Notes[...]

32 308–293 Graco W arranty and Limitation of Liability W ARRANTY 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 mon[...]