Page 2 - Warning Symbol; Caution Symbol; CAUTION; WARNING; EQUIPMENT MISUSE HAZARD
Table of Contents Warnings 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selection Chart 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Flow and Atomizing Pressure 5 . . . . . . . . . . . . . . . . . Installation 6 . . . . . . . . . . . . . . . ...
Page 3 - PRESSURIZED EQUIPMENT HAZARD
WARNING PRESSURIZED EQUIPMENT HAZARD Spray from the gun, hose leaks or ruptured components can splash fluid in the eyes or on the skin andcause serious injury. Do not stop or deflect fluid leaks with your hand, body, glove or rag. Follow the Pressure Relief Procedure on page 7 when: you are instruct...
Page 4 - Selection Chart; Selection Problems and Solutions
Selection Chart Includes: Needle/ Nozzle/Air Cap Kit P/N Needle Assembly P/N Air Cap P/N Nozzle P/N Replacement Needle Tip P/N Orifice Size 949–276 238–703 185–794 185–756 191–564 0.020” (0.508 mm) 949–277 238–703 185–794 185–757 191–564 0.026” (0.660 mm) 949–278 238–703 185–794 185–700 191–564 0.03...
Page 5 - Air Flow and Atomizing Pressure; Air Flow; Atomizing Air Pressure
308-341 5 Air Flow and Atomizing Pressure NOTE: All tests completed with the fan air fully open. Air Flow 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 15 25 35 45 55 65 75 85 95 AIR FLOW (scfm) GUN AIR INLET PRESSURE (psi) Atomizing Pressure Versus Activator Inlet Pressure Air flowing through the gun ...
Page 6 - Installation; Fluid Compatibility of Accessories
6 308-341 Installation KEY A Optimiser 2K Spray Gun B Air Inlet; 1/4 npsm C Air HoseRecommend 5/16” (7.9 mm) ID hose;Optional 3/8” (9.5 mm) ID hose D Gun Air Shut-off Valve E Gun Air Regulator F Air Filter G Air Supply Line H Pressure Pot Air Shut-off Valve J Pressure Pot Air Regulator K Activator P...
Page 7 - Air Line Accessories; Setup and Shutdown; Pressure Relief Procedure
308-341 7 Installation Air Line Accessories The gun air line must have an air regulator (E) tocontrol air pressure to the gun. See Fig. 1. If the gun air source does not have a filter, install a filter (F) on the gun air line to ensure a dry, cleanair supply. To eliminate the need to shut off the ai...
Page 8 - Removing and Installing the Fluid Nozzle
Setup and Shutdown Removing and Installing the Fluid Nozzle Follow this procedure whenever you remove and installa fluid nozzle. See page 4 to select a nozzle orneedle/nozzle/air cap kit. 1. Follow the Pressure Relief Procedure onpage 7. 2. Remove the air cap ring (12), air cap (19), and aircap seal...
Page 9 - Flush the adhesive and activator fluid
308-341 9 Setup and Shutdown WARNING EQUIPMENT MISUSE HAZARDThis gun is for use with water-based contact adhe-sives only. Any other use of the gun could causeunsafe operating conditions or damage to the gun. 1. Connect the air line. A. Connect the air hose (C) to the gun air inlet (B). See Fig. 6. C...
Page 10 - Position the Air Cap for a vertical or
Setup and Shutdown 4. Connect the activator tube. A. Connect the fitting (V) and tube (M) to the gun activator inlet. See Fig. 10. B. Connect the other end of the fluid tube (M) to a regulated fluid supply line or a pressure tank. Fig. 10 02784 V M 5. Position the Air Cap for a vertical or horizonta...
Page 12 - Shut down the system; Place the gun nozzle in soapy water
Setup and Shutdown 6. Adjust the spray pattern. (continued) F. Set the gun air supply pressure at 40 psi (2.8 bar), using the gun atomizing air regulator(E). See Fig. 18. NOTE: Use the fluid manufacturer recommendations ifavailable and refer to the Atomizing PressureVersus Activator Inlet Pressure c...
Page 13 - Ratio Check
Ratio Check NOTE: You cannot sample the adhesive and activatorat the same time. The adhesive must be checked withthe atomizing air off, while the activator must bechecked with the atomizing air on. 1. Check the ratio of the adhesive. A. Weigh an empty beaker. B. Close the atomizing air shut-off valv...
Page 16 - Lubricate the following gun parts daily,
16 308-341 Daily Gun Care, Flushing, and Cleaning 3. Clean the gun. (continued) G. Install the fluid nozzle (20) air cap seal (47), air cap ring (12), and air cap (19) as instructed onpage 8. H. Dampen a soft cloth with soapy water; squeeze out the excess water. Point the gundown and wipe off the ou...
Page 17 - Troubleshooting
308-341 17 Troubleshooting PROBLEM CAUSE SOLUTION Fluid flow is fluttering whilespraying 1. Fluid nozzle is not tight enough 2. Fluid filter is clogged 3. Fluid adjustment knob is not properly set 4. Baffle (item 11) is installed wrong ordamaged 1. See page 8 to install the fluid nozzlecorrectly 2. ...
Page 18 - Service; Items Needed for Service; Disassemble
Service Items Needed for Service Gun Wrench – provided Seal Installation Tool – provided Adjustable Wrench Screw Driver Part No. 111–265 Lubricant Soap and water NOTE: Gun Repair Kit 949–285 is available; see page25. The following procedure covers the replacement ofall the kit parts. Disassemble 1. ...
Page 20 - Assemble
Service Assemble NOTE: See Fig. 34, page 19, for the parts that need tobe lubricated. 1. Insert the fluid needle (21) through the front of thegun as shown in Fig. 35. Install the new packingassembly (39) by placing them on the end of theneedle tip. Orientate the packings as shown in Fig.35. 02763 Fi...
Page 24 - Parts Drawing
Parts Drawing 12 11 15 16 8 33 14 3 13a 2 4 32 25 19 20 13c 13b 13d 5 39 31 6 22 21 1 Ref No. 13Fan Air Valve AssemblyIncludes items 13a–13d Ref No. 49Activator Valve AssemblyIncludes items 49a–49r 35 42 02765A 47 48 49 51 55 52 52 53 49a 49c 49b 49e 49f 49h 49r 49d 49j 49k 49m 17 49p 49q 49g 49n 49...
Page 25 - Parts List
Parts List Part No. 949–239, Series C Optimiser 2K HVLP Spray Gun RefNo. Part No. Description Qty 1 238–139 GUN BODY 1 2 190–247 PLATE, gun 1 3 185–761 TRIGGER, gun 1 4 625–723 PIN, pivot 1 5 203–953 SCREW, lock; No. 10–24 UNC-2Ax 0.375” 1 6 188–490 NUT, fluid adjustment 1 8 185–745 KNOB, fluid adju...
Page 27 - Notes
Page 28 - The Graco Warranty and Disclaimers; Graco Phone Number
The Graco Warranty and Disclaimers Graco warrants all equipment listed in this manual which is manufactured by Graco and bearing its name to be free from defects inmaterial and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the exception of...