Graco 3A0149C Instructions And Parts List
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Graco 3A0149C Instructions And Parts List

Model g40 gun with rac tip
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Instructions - Parts List
G15/G40 Spray Gun
A lightweight line of air-assisted spray guns for spraying and finishing a variety of paints
and coatings, particularly in applications requiring uniform atomization and high transfer
efficiency. For professional use only.
Important Safety Instructions:
Read all warnings and instructions in this manual. Save these
instructions. See page 2 for model information including maxi-
mum working pressure.
Model G40
Model G15
Model G40 w/RAC tip
TI6844A
TI6553A
3A0149C
ENG
TI7204B
II 2 G

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Summary of Contents for Graco 3A0149C

  • Page 1 Important Safety Instructions: Read all warnings and instructions in this manual. Save these instructions. See page 2 for model information including maxi- mum working pressure. Model G40 TI6553A Model G15 Model G40 w/RAC tip TI6844A 3A0149C TI7204B II 2 G...

  • Page 2: Table Of Contents

    4000 (28, 280) Ball, Reverse-A-Clean ® (RAC) Tip ....16 Description Includes: 24C866 Air Cap with pin 249180 Air Cap without 24C921 ® (RAC) Tip Air Cap 3A0149C...

  • Page 3: Related Manuals

    Related Manuals This manual is available in the following languages: Manual Language 3A0149A English 3A0283A French 3A0282A Spanish 3A0442 Chinese 3A0443 Japanese 3A0444 Korean 3A0149C Related Manuals...

  • Page 4: Warnings

    • Follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or servicing equipment. • Tighten all fluid connections before operating the equipment. • Check hoses and couplings daily. Replace worn or damaged parts immediately. WARNING 3A0149C...
  • Page 5 This equipment includes but is not limited to: • Protective eyewear, and hearing protection. • Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer 3A0149C WARNING Warnings...

  • Page 6: Installation

    . 1 is only a • Check your local electrical code and pump man- ual for detailed grounding instructions. Use only electrically conductive fluid hoses. • Ground the spray gun through connection to a properly grounded fluid supply hose and pump. TI6554A 3A0149C...

  • Page 7: Air Line

    . 2. TI6556A 6. Connect the other end of the air hose (G) to the out- let of the air shutoff valve. See F 3A0149C Fluid Line • Before connecting the fluid line, blow it out with air and flush it with solvent. See Flushing and Clean- ing, page 14.

  • Page 8: Setup

    Tighten the air cap retaining ring (6) firmly by hand to ensure a good seal between the tip gasket and the dif- fuser (5). Horizontal air cap position (standard) TI6847A . 5. TI6558A 3A0149C...

  • Page 9: Reverse-A-Clean ® (Rac) Tip

    To assemble the RAC tip, insert the seat housing into the air cap assembly. Insert the SwitchTip. Insert the gasket seat. TI7198A 3A0149C ® Screw the RAC tip assembly onto the gun and tighten (RAC) tip. firmly by hand. TI7196A .

  • Page 10: Operation

    . 12. Trigger Lock Always engage the trigger lock when you stop spraying to prevent the gun from being triggered accidentally by . 12. hand or if dropped or bumped. ENGAGED . 12 TI6555A . 12. DISENGAGED TI6581A TI6582A 3A0149C...

  • Page 11: How The Air-Assisted Spray Gun Operates

    3. Slowly increase the fluid pressure, just to the point where a further increase in fluid pressure does not significantly improve fluid atomization. 3A0149C 4. Close off the pattern adjustment air by turning the knob clockwise (in) all the way. See F sets the gun for its widest pattern.

  • Page 12: Hvlp Operation

    (200 to 300 mm) from the object being sprayed. 2. To obtain an even finish, use smooth, even strokes across the object being sprayed with 50% overlap. 3. Paint using parallel strokes. This spray gun applies all coatings evenly without cross coating. TI6561A CORRECT TI6562A 3A0149C...

  • Page 13: Daily Gun Care, Flushing, And Cleaning

    Do not point the gun up while cleaning it. Do not immerse the gun in solvent. 3A0149C Methylene chloride with formic or propionic acid is not recommended as a flushing or cleaning solvent with this gun as it will damage aluminum and nylon components.

  • Page 14: General System Maintenance

    (33). Soak the spray tip in a compati- ble solvent. 3. Disconnect the fluid supply hose (F) and air supply hose (G) from the gun. . 17 4. Connect the solvent supply hose (T) to the gun. TI6735A . 18 TI6566A TI6567A TI6566A 3A0149C...
  • Page 15 9. If it is necessary to remove the diffuser (5) to clean, trigger the gun while you remove the diffuser with the gun tool (30). 3A0149C 10. Dip the end of a soft-bristle brush into a compatible solvent. Do not continuously soak the brush's bris- tles with solvent and do not use a wire brush.

  • Page 16: Reverse-A-Clean ® (Rac) Tip

    NOTE: Do not soak the RAC tip seat gasket (33a) in sol- vent for extended periods of time or swelling may occur. Clearing a clogged RAC tip Release the trigger and engage the trigger lock. TI6568A . 27 TI6571A TI6553A ® (RAC) Tip TI6581A ENGAGED 3A0149C...
  • Page 17 . 29 Trigger the gun into a pail to clear the clog. Do not point gun at anyone or at any part of the body. . 30 3A0149C Engage the trigger lock . 31 TI7200A Return the SwitchTip to its original position.

  • Page 18: Troubleshooting

    (2). Clean spray tip. See page 14. After tip removal (see above), very slowly loosen the hose end coupling at the gun and relieve pressure gradually. Then loosen com- pletely to clear the obstruction. Clean or replace filter (12). 3A0149C...
  • Page 19 Fluttering or spitting spray. Striping spray. Irregular pattern. Pattern pushed to one side, same side of air cap gets dirty. Material build up on air cap. 3A0149C Cause Insufficient fluid supply. Air in paint supply line. Attempting to “feather” (partially trigger the gun).

  • Page 20: Repair

    5. Remove the seat nut (5d), seat (5c) and seat gasket (5b, carbide models only) using a 7/32 in. hex wrench. Torque to 90 in-lb 6. Inspect the seat (5c) and seat gasket (5b) and (10.5 N•m). replace if necessary. TI6576A . 35. TI6568A 3A0149C...
  • Page 21 2. Remove the trigger pivot pin nut (14‡), pivot pin (13‡), and trigger (3‡) using the gun tool (30) and nut driver (29). See F . 37. 3A0149C 13‡ 3‡ . 37 3. Remove the fluid needle assembly (2) from the front of the gun by using the nut driver tool (29).
  • Page 22 2. Unscrew the fluid inlet fitting (18). Remove and clean or replace the inline fluid filter (12). 3. Unscrew the fluid tube connector (C) from the gun’s fluid inlet. Carefully remove the gasket (22*). TI6577B . 40 TI6573A 3A0149C...
  • Page 23 Repair 3A0149C...
  • Page 24 (1) using the gun tool (30). Torque to 155-165 in-lb (18-19 N•m). When properly tightened, the flange TI6578A will bottom out on the gun. 11. Attach the retaining ring (6), air cap (21), and spray tip (33). . 42. 2† TI6575A . 43. Lubricate both sides 3A0149C...
  • Page 25 Torque to 50-60 in-lb (6-7 N•m). Torque to 210-220 in-lb (24-25 N•m). Torque to 45-50 in-lb (5-6 N•m). Use low-strength thread locker. Torque to 175-185 in-lb (20-21 N•m). . 43 3A0149C (24C856 & 24C857) (24C853, 24C854 and 24C855 only) (24C853, 24C854, and 24C855) 5b✖...

  • Page 26: Parts

    21a (G15 only) *6a (G40 only) 6 (G40 only) ◆*6b 6 (G15 only) (24C856 only) (24C853, 24C854, and 24C855 only) (24C853, 24C854, and 24C855 only) ◆*6a 13‡ 3‡ 5b✖ (carbide only) 5c†✖ 5d†✖ 14‡ (24C853, 24C854, and 24C855 only) TI6579D 3A0149C...
  • Page 27 14‡ 15F740 PIN, pivot, nut 114069 SPRING, compression 24D436 TUBE, assy.; includes item 22 15F202 FITTING, air inlet 24D437 FITTING, hose; see Accessories for fitting with JIC threads 3A0149C Ref. Part No. Description Qty. 119767 SPRING, compression (24C854 only) 115141...
  • Page 28 Included in Seal Repair Kit 249422 (purchase separately). ✖ Included in Carbide Seat Repair Kit 249456 (purchase separately). ‡ Included in Trigger Repair Kit 249585 (purchase separately). ◆ Included in Air Cap Seal Kit 253032 (purchase separately). ✓ Not for sale separately. Qty. 3A0149C...
  • Page 29 Parts 3A0149C...
  • Page 30 Parts Part No. 24C857, G40 Gun with RAC Tip ★✖5b 5c✖★ ★*5g 5d✖★ ★*5f ★4 ★5a 13‡ ★35 ★*6a ★6 3‡ 14‡ TI7203B TI6580A 3A0149C...
  • Page 31 114069 SPRING, compression 249317 TUBE, assy 15F202 FITTING, air inlet 115141 SPRING, compression 119996 SCREW, cap, socket hd; 1/4-20 x 3/8 in. (10 mm) 3A0149C Ref. No. Part No. Description Qty. 22*✓ 115133 GASKET, tube, acetal TOOL, installation; seal 117642 TOOL, nut driver 15F446 TOOL, gun 31▲...

  • Page 32: Spray Tip Selection Chart

    10 to 12 (100) (150) (200) (250) (300) Spray Tip ★107 207 ★ GG4 tips only. ❄ AAM tips only. 12 to 14 14 to 16 16 to 18 18 to 20 (350) (400) (450) (500) ❄711 ★925 ★833 3A0149C...

  • Page 33: Rac Switchtips, For Use With G40 Rac Air Cap

    QT = fluid output (fl oz/min) from the above table for the selected orifice size. ❖ Measured with NO airflow. Air assist will tend to reduce pattern lengths by 1 in. to 2 in. 3A0149C Maximum Pattern Width at 12 in. (305 mm) in.

  • Page 34: Rac Switchtips, For Use With G40 Rac Air Cap, Continued

    8 to 10 10 to 12 (150) (200) (250) (300) Spray Tip ❖ Maximum Pattern Width at 12 in. (305 mm) 24 in. (610 mm) Spray Tip 1221 1223 1225 1227 1229 1231 1233 1235 1237 1239 12 to 14 (350) 3A0149C...

  • Page 35: Accessories

    Spray Guns. G40 Gun Flush Box Insert 15G346 Insert for use with Gun Flush Box 244105 and G40 Spray Guns. 3A0149C Gun Lubricant 111265 One 4 oz. (113 g) tube sanitary (non-silicone) lubricant for fluid seals and wear areas. High Pressure Fluid Ball Valve 238694 5000 psi (35 MPa, 350 bar) Maximum Working Pressure 3/8 npt(mbe).
  • Page 36 Kit includes picks for unclogging gun tip. Fan Valve Fine Adjustment Kit 289499 Kit includes a replacement fan valve assembly with more adjustment accuracy. Fluid Fitting Kit 24C356, JIC Threads Kit includes a 1/2-20 JIC threaded fluid inlet fitting. 3A0149C...

  • Page 37: Part Interchangeability Guide

    NOTE: The new retaining ring is black and has coarse threads, while the old retaining ring is silver and has fine threads. Any interchange will damage the threads on the ring and gun body. Older model part numbers include 288xxx, 287xxx, 249xxx. 3A0149C Part Number, Older Models*...

  • Page 38: Dimensions

    Dimensions 6.9 in. (17.5 cm) 8.0 in. (20.3 cm) 6.9 in. (17.5 cm) 8.0 in. (20.3 cm) Model G15 5.0 in. (12.7 cm) 6.1 in. (15.5 cm) Model G40 5.8 in. (14.7 cm) TI6845A 6.9 in. (17.5 cm) TI6583A 3A0149C...

  • Page 39: Technical Data

    All readings were taken with the fan valve fully closed (full fan size), at 20 psi (140 kPa, 1.4 bar) and 100 psi (0.7 kPa, 7 bar), and at the assumed operator position. Sound Power was tested to ISO 9614-2. Air Flow (SCFM) 3A0149C Data Model G40: 4000 psi (28 MPa, 280 bar) °...

  • Page 40: Graco Standard Warranty

    Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale 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 manual is also suitable for:

G15G4024c85324c85424c85524c856 ... Show all

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