Graco Inc TI14427A, 313869B, TI14428A important safety instructions Reassembly

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6.Use a 1/16 hex wrench to loosen the fluid needle set screw (7a). Remove the needle

(6) from the piston (7).

7.Check the fluid needle (6) for damage or excessive wear. Replace the needle if nec- essary.

NOTICE

The needle and tip are permanently bonded. To prevent damage to the needle, do not try to separate.

8.Use the 10 mm hex nut driver to remove the fluid packing nut (2).

9.Use the 10 mm wrench to remove the nozzle (4).

Reassembly

1.Lightly grease the new nozzle (4), which includes o-ring (3). Use the 10 mm wrench to install the nozzle. Torque to 155-165 in-lb (18-19 N•m).

2.Install the new air cap assembly (5, includes air cap, o-ring, washer, and align- ment pin) and the retaining ring (21).

NOTE: Be sure to move the alignment pin if you want a horizontal spray pattern. See Posi- tion Air Cap, page 16.

3.Use the 10 mm hex nut driver to install new fluid packing nut (2, includes o-ring). Torque to 80 in-lb (9.0 N•m).

4.Insert the new needle (6) in the piston (7). Apply medium-strength thread sealant to the setscrew (7a). Use the 1/16 hex wrench to torque the setscrew to 4.5 to 5.5 in-lb (0.5 to 0.6 N•m).

Service

76

1 7a

ti14944a

1Torque to 4.5 to 5.5 in-lb (0.5 to 0.6 N•m).

FIG. 18

NOTICE

To avoid damage, the nozzle (4) must be installed before the needle (6).

5.Grease the needle shaft and piston o-ring. Push the needle/piston assembly into the gun as far as possible. Insert spring (10).

6.Turn counterclockwise to fully open the fluid adjustment knob (11). Install the knob hand-tight.

NOTE: If you have an ultra-precision fluid adjustment knob, loosen the set screw to adjust the position of the hash markings for convenient reading.

ti14947a

Set screw

FIG. 19

313869B

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Contents AirPro EFX Automatic Spray Gun Important Safety InstructionsModels ContentsFire and Explosion Hazard Equipment Misuse Hazard Toxic Fluid or Fumes Hazard Gun Selection Selection ChartsProper Needle/Nozzle Selection Models Without Manifolds Models With ManifoldsAir Caps Needle Assembly IdentificationSample Pattern Sizes and Shapes 313869B Ventilate Spray Booth InstallationConfigure Gun and Manifold Guns with ManifoldGuns without Manifold Ground SystemReciprocating Arm Rod Mount Mount GunStationary Support Connect Air Line SetupAir regulator With Manifold Connect Fluid HoseWithout Manifold Perform Pressure Relief Procedure, Flush Spray Gun Adjust Spray PatternPosition Air Cap Vertical Pattern Horizontal PatternFluid Pressure Regulator Suggested Starting Settings Spray Fan Air Atomizing AirOperation Pressure Relief ProcedureApply Fluid IncorrectDaily Gun Care Clean and Flush Gun General System MaintenanceFollow the Pressure Relief Procedure, 313869B Wrong TroubleshootingProblem Cause Solution Disassembly ServiceReassembly Guns with Manifold PartsGuns without Manifold Additional Parts for Models with Manifold Parts in CommonRepair Kits AccessoriesDimensions Mounting Hole Layouts 44.7 mm M8 x 1.25 T 35 in .9 mm deep 24.1 mm Slot Triggering Speed Technical DataConventional Sound DataHiTEch Air BrushAir Flow Spray Pattern Test Report Spray Pattern Test ReportGraco Information Graco Standard Warranty