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INSTRUCTIONS-PARTS LIST 308–236
Rev. J
This manual contains important
Supersedes Rev. H
warnings and information.
First choice when
READ AND KEEP FOR REFERENCE.
quality counts.
INSTRUCTIONS
Silver Airless Spray Gun
5000 psi (345 bar) Maximum Working Pressure
Model 237–695, Series B
2 finger trigger. Tip Guard and
Spray tip not included; order separately.
Model 235–460, Series C
Includes the Standard (non-reversing) DripLess
Tip Guard and 2 finger trigger.
Spray tip not included; order separa
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Table of Contents Symbols Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warning Symbol Installation/Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 5 System Requirements . . . . . . . . . . . . . . . . . . . . . . . 5 WARNING How to Use the Gun Trigger Safety . . . . . . . . . . . 5 How to Use the Gun . . . . . . . . . . . . . . . . . . . . . . . . 6 This symbol alerts you t
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WARNING INJECTION HAZARD Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury. Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medi- cal attention. Do not point the gun at anyone or at any part of the body. Do not put your hand or fingers over the spray tip. Do not stop
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WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. If there is any static sparking or you feel an electric shock while using this equipment, stop spray- ing immediately. Do not use the equipment until you identify and correct the problem. Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid being sprayed. Keep the spray
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Installation/Operation Pressure Relief Procedure WARNING WARNING Be sure your system has a bleed-type master air valve (pneumatic pumps only) and a pressure drain INJECTION HAZARD valve. These accessories help reduce the risk of The system pressure must be manually serious bodily injury, including fluid injection, relieved to prevent the system from splashing in the eyes or on the skin, or injury from starting or spraying accidentally. Fluid moving parts, if you are adjusting or repairing the un
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Installation/Operation 7. If adjusting the pressure does not give a good How to Use the Gun spray pattern, follow the Pressure Relief Proce- dure on page 5 and then try another tip size. 1. Connect a grounded fluid hose to the gun inlet. See Fig. 2. 8. Use a full-open, full-close triggering action. Hold the gun about 14 in. (350 mm) from and at right 2. With no tip installed, start the pump. Flush the angles to the work surface. Don’t swing the gun in pump according to the instructions supplied
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Installation/Operation Clearing an Obstruction How to Clean the Spray Tip If the spray tip clogs while spraying, immediately stop and Clear a Spray Tip Obstruction spraying, then: Gun 235–460, 235–461, 235–462 WARNING – with standard tip guard To reduce the risk of fluid injection or splashing in 1. Lock the gun trigger safety, open the pressure the eyes or on the skin, do not hold a hand, body drain valve. or rag in front of the spray tip when cleaning or 2. Remove the spray tip and blow out t
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Installation/Operation How to Check the Gun Diffuser Operation 2a WARNING The Fine–Finish Gun, Model 235–462, uses a pre–orifice in the seat to develop the type of spray pattern required for fine finishes. The pre-orifice does not diffuse the spray from the nozzle into an irregular pattern, as with the other guns covered in Fig. 5 this manual. Therefore, to reduce the risk of an injection injury when the tip guard is not installed, How to Flush the Gun such as during cleaning, take extra precaut
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Service 10 CAUTION Do not attempt to install an old style needle in this gun. The front of the new needle is marked with a + below the Graco symbol. 2b* 2a* 8 Notes: 12 Use Needle Kit 235–475 for Model 235–462 and Repair Kit 235–474 for the other models. Use all the new parts for the best results. Parts included in the kit are shown with one asterisk, (2a*). Keep parts very clean. Dried paint or other contami- 02352 nants cause friction which causes parts to wear Fig. 6 faster. Needle Repl
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Service 7. Slide the rear of the needle (2c*) into the front of the gun. Slide the tool (B), provided with the repair kit, into the gun, around the needle. Lightly tap the tool with a hammer or lightly press the tool against a flat surface to seat the needle. See Fig. 9. Remove the tool. B CAUTION 2c Tapping or pressing the tool too hard may jam the tool and damage the needle. 8. Grease the end of the needle. 9. Grease the diffuser/seat threads. Place the new gasket (2b*) on the diffuser/seat (2
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Parts 10 11 9 12 8 6 2 2c* 2b* 2a* 2d* 1 13 Lubricate, then torque to 20-25 ft-lb (27-34 N.m) Lubricate Torque to 30-40 in-lb (3.4–4.5 N.m) Purchase separately 17 01477A 16 Model 235–460, Series C; Model 237–695, Series B Model 235–461, Series B Model 235–460 Includes the Standard (non-reversing) Includes the Standard (non-reversing) DripLess DripLess Tip Guard and 2 finger trigger. Tip Guard and 4 finger trigger. Includes items 1 to 15. Includes items 1 to 15. Model 237–695 is
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Parts Model 235–462, Series C Model 235–464, Series C; Model 236–531, Series C Includes the Fine-Finish (non-reversing) DripLess and Model 238–966, Series A Tip Guard and 2 finger trigger. Models 235–464 and 236–531 includes Heavy Duty Includes items 1 to 15. RAC tip, 2 finger fluid housing and 2 finger trigger. Model 238–966 includes Heavy Duty RAC tip, cus- Ref tomer specified tip, 4 finger fluid housing and 2 finger No. Part No. Description Qty. trigger . 1 220–247 FINE FINISH TIP GUARD
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Accessories FILTERS TOOLS 3000 psi (210 bar) Maximum Working Pressure. NYLON BRUSHES Use to thoroughly clean the gun’s fluid passages. Adequate filtering is important for a good surface finish and to minimize tip clogging. These filters provide 101–891 0.375” (9 mm) dia. secondary filtering. Various screen meshes are avail- 101–892 0.625” (16 mm) dia. able. Mounts in hose WRENCH 171–147 213–068 Includes filter body, spring and one Fits all hexes on the gun. 100 mesh screen. 213–069 Includes fil
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Technical Data Category Data Maximum fluid working pressure 5000 psi (345 bar) Fluid orifice size Model 235–462: 0.037 in. (0.94 mm) All other models: 0.090 in. (2.3 mm) Wetted parts Stainless steel, Polyethylene, Polyurethane, Nylon, PTFE Weight 18 oz (510 g) Inlet 1/4 npsm(m) Maximum material temperature 120F (50C) * Sound pressure level 78 dBa * Sound power level 87 dBa * Measured while spraying waterbase paint – gravity 1.36 through a 517 tip at 3000 psi (207 bar) per ISO 3744. TPTFE i
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Notes
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Graco 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. With the exception of any special extended or limited warranty published by Graco, 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 defective. This warr
