Graco AirPro EFX Parts list manual

Instructions/Parts
AirPro™EFX Automatic
Spray Gun 313869K
EN
Conventional, HVLP, HiTEch, and LVMP automatic guns for small component finishing
applications. For professional use only.
100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure
100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure
See page 3 for model information.
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
TI14428A
Guns with manifold
TI14427A
Guns without manifold
II 2 G c IIB T6

2313869K
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Selection Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Gun Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Proper Needle/Nozzle Selection . . . . . . . . . . . . . 8
Models With Manifolds . . . . . . . . . . . . . . . . . . . . 9
Models Without Manifolds . . . . . . . . . . . . . . . . . 10
Air Caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Sample Pattern Sizes and Shapes . . . . . . . . . . 11
Needle Assembly Identification . . . . . . . . . . . . . 11
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Ventilate Spray Booth . . . . . . . . . . . . . . . . . . . . 12
Configure Gun and Manifold . . . . . . . . . . . . . . . 12
Ground System . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mount Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connect Air Line . . . . . . . . . . . . . . . . . . . . . . . . 15
Connect Fluid Hose . . . . . . . . . . . . . . . . . . . . . 17
Flush Spray Gun . . . . . . . . . . . . . . . . . . . . . . . . 18
Position Air Cap . . . . . . . . . . . . . . . . . . . . . . . . 18
Adjust Spray Pattern . . . . . . . . . . . . . . . . . . . . . 18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Pressure Relief Procedure . . . . . . . . . . . . . . . . 20
Apply Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Daily Gun Care . . . . . . . . . . . . . . . . . . . . . . . . . 21
General System Maintenance . . . . . . . . . . . . . . 22
Clean and Flush Gun . . . . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Mounting Hole Layouts . . . . . . . . . . . . . . . . . . . . . 34
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Air Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Spray Pattern Test Report . . . . . . . . . . . . . . . . . 39
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 40
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 40

Models
313869K 3
Models
* Needle tip and nozzle exit constructed from tungsten carbide.
** Models with manifold have fully stainless steel fluid passages.
Spray Type
Orifice Size
in. (mm)
Models with Manifold** Models without Manifold
Gun Part No. Series Gun Part No. Series
Conventional 0.028 (0.7) 24B857 C 24B877 C
Conventional 0.035 (0.9) 24B858 C 24B878 C
Conventional 0.039 (1.0) 24M390* A 24M392* A
Conventional 0.043 (1.1) 24B859 C 24B879 C
Conventional 0.051 (1.3) 24B860 C 24B880 C
Conventional 0.059 (1.5) 24B861* C ----- C
HVLP 0.020 (0.5) 24B862 C----- C
HVLP 0.028 (0.7) 24B863 C24B881 C
HVLP 0.043 (1.1) 24B864 C24B882 C
HVLP 0.051 (1.3) 24B865 C24B883 C
HiTEch 0.028 (0.7) 24B866 C 24B884 C
HiTEch 0.039 (1.0) 24B867* C 24B885* C
HiTEch 0.059 (1.5) 24B868* C 24B886* C
LVMP 0.020 (0.5) 24B869 C24B887 C
LVMP 0.028 (0.7) 24B870 C24B888 C
LVMP 0.035 (0.9) 24B871 C24B889 C
LVMP 0.039 (1.0) 24M391* A24M393* A
LVMP 0.039 (1.0) 24P993 A24P995 A
LVMP 0.043 (1.1) 24B872 C24B890 C
LVMP 0.051 (1.3) 24B873 C24B891 C
LVMP 0.051 (1.3) 24P994 A24P996 A
LVMP 0.059 (1.5) 24B874* C----- C
Air Brush 0.028 (0.7) 24B875 C 24B892 C
Gun without needle,
nozzle, or air cap N/A 24B876 C24B893 C

Warnings
4313869K
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equip-
ment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer
to procedure-specific risks. When these symbols appear in the body of this manual or on warning
labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered
in this section may appear throughout the body of this manual where applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or
explode. To help prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric
lamps, and plastic drop cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when
flammable fumes are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not
use equipment until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.

Warnings
313869K 5
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest
rated system component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See
Technical Data in all equipment manuals. Read fluid and solvent manufacturer’s
warnings. For complete information about your material, request MSDS from dis-
tributor or retailer.
• Do not leave the work area while equipment is energized or under pressure. Turn
off all equipment and follow the Pressure Relief Procedure when equipment is
not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately
with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and
hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the
eyes or on skin and cause serious injury.
• Follow the Pressure Relief Procedure when you stop spraying and before clean-
ing, checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts imme-
diately.
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can
cause serious chemical reaction and equipment rupture. Failure to follow this warning
can result in death, serious injury, or property damage.
• Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocar-
bon solvents or fluids containing such solvents.
• Many other fluids may contain chemicals that can react with aluminum. Contact
your material supplier for compatibility.
WARNING

Warnings
6313869K
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on
skin, inhaled, or swallowed.
• Read MSDSs to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to appli-
cable guidelines.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when
in the operating area of the equipment to help protect you from serious injury, includ-
ing eye injury, hearing loss, inhalation of toxic fumes, and burns. This equipment
includes but is not limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and sol-
vent manufacturer.
WARNING

Warnings
313869K 7

Selection Charts
8313869K
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 Volatile Organic Compounds, High-solid
Polyurethanes, Heavy Waterborne Enamels
Gun Selection
HVLP Guns
An HVLP gun is a high transfer efficiency gun
that limits the air pressure at the air cap to
10 psi (0.07 MPa, 0.7 bar) maximum. In some
areas, an HVLP gun is required for compliance
with environmental standards. See the Air Cap
chart, page 11, for maximum inlet pressure.
LVMP Guns
An LVMP gun is a high transfer efficiency gun
that has been tested to have a transfer effi-
ciency greater than or equal to HVLP guns. In
addition, the LVMP air cap consumes much
less air than the HVLP air cap. Graco LVMP
guns have no restrictions on air cap pressures.
Conventional Guns
A conventional gun has excellent atomization
and high production rates typically with some
reduction in transfer efficiency.
HiTEch Guns
A HiTEch gun is a high transfer efficiency gun
with excellent atomization. Graco HiTEch guns
have no restrictions on air cap pressures.
Proper Needle/Nozzle Selection
The spray gun's needle/nozzle kits range in
size to provide different fluid flow rates. As a
general guideline, use the fluid nozzle that will
give the required flow with the needle fully trig-
gered at a fluid pressure of 5–20 psi
(0.035–0.14 MPa, 0.35–1.4 bar).
• For low flow rates or light viscosity fluid,
select the smaller nozzle sizes.
• For high flow rates or high viscosity fluid,
select the larger nozzle sizes.
• For abrasive fluids, the gun models with
tungsten carbide needle tip and nozzle are
recommended.
Orifice Size
Viscosity
Flow
in. mm oz/min cc/min
0.020 0.5 light 0.2-1.7 5-50
0.028 0.7 light 0.3-3.4 10-100
0.035 0.9 light-medium 0.5-5.1 15-150
0.039 1.0 light-medium 0.7-6.8 20-200
0.043 1.1 light-medium 0.8-8.5 25-250
0.051 1.3 medium 1.2-11.8 35-350
0.059 1.5 medium 1.5-15.2 45-450

Selection Charts
313869K 9
Models With Manifolds
Gun
Assembly
Part No. Type
Includes: Orifice Size
Construction
of Needle Tip/
Nozzle Exit
Fluid
Adjustment
Knob
Construction
of Fluid
Fitting
Needle/
Nozzle Kit
Part No.
Air Cap
with Pin
Part No. in. mm
24B857
Conven-
tional 24D177 24C182 0.028 0.7 Stainless Steel Indexing Plastic
24B858
Conven-
tional 24C198 24C182 0.035 0.9 Stainless Steel Indexing Plastic
24M390
Conven-
tional 24C221 24C182 0.039 1.0 Carbide Indexing Plastic
24B859
Conven-
tional 24C199 24C182 0.043 1.1 Stainless Steel Indexing Plastic
24B860
Conven-
tional 24C200 24C182 0.051 1.3 Stainless Steel Indexing Plastic
24B861
Conven-
tional 24D178 24C182 0.059 1.5 Carbide Indexing Plastic
24B862 HVLP 24D302 24C183 0.020 0.5 Stainless Steel Indexing Plastic
24B863 HVLP 24D179 24C183 0.028 0.7 Stainless Steel Indexing Plastic
24B864 HVLP 24D305 24C183 0.043 1.1 Stainless Steel Indexing Plastic
24B865 HVLP 24D306 24C183 0.051 1.3 Stainless Steel Indexing Plastic
24B866 HiTEch 24D303 24D703 0.028 0.7 Stainless Steel Ultra Precision Stainless Steel
24B867 HiTEch 24C221 24D703 0.039 1.0 Carbide Ultra Precision Stainless Steel
24B868 HiTEch 24C201 24D704 0.059 1.5 Carbide Ultra Precision Stainless Steel
24B869 LVMP 24D277 24C184 0.020 0.5 Stainless Steel Ultra Precision Plastic
24B870 LVMP 24D278 24C184 0.028 0.7 Stainless Steel Ultra Precision Plastic
24B871 LVMP 24D279 24C184 0.035 0.9 Stainless Steel Ultra Precision Plastic
24M391 LVMP 24C221 24C184 0.039 1.0 Carbide Ultra Precision Plastic
24P993 LVMP 24R001 24C184 0.039 1.0 Stainless Steel Ultra Precision Plastic
24B872 LVMP 24D280 24C184 0.043 1.1 Stainless Steel Ultra Precision Plastic
24B873 LVMP 24D281 24C184 0.051 1.3 Stainless Steel Ultra Precision Plastic
24P994 LVMP 24R002 24C184 0.051 1.3 Stainless Steel Ultra Precision Plastic
24B874 LVMP 24D284 24C184 0.059 1.5 Carbide Ultra Precision Plastic
24B875 Air Brush 24C197 24D705 0.028 0.7 Stainless Steel Indexing Plastic
24B876 N/A N/A N/A N/A N/A N/A Indexing Plastic

Selection Charts
10 313869K
Models Without Manifolds
Gun
Assembly
Part No. Type
Includes: Orifice Size
Construction
of Needle Tip/
Nozzle Exit
Fluid
Adjustment
Knob
Construction
of Fluid
Fitting
Needle/
Nozzle Kit
Part No.
Air Cap
with Pin
Part No. in. mm
24B877
Conven-
tional 24D177 24C182 0.028 0.7 Stainless Steel Lock Ring Plastic
24B878
Conven-
tional 24C198 24C182 0.035 0.9 Stainless Steel Lock Ring Plastic
24M392
Conven-
tional 24C221 24C182 0.039 1.0 Carbide Lock Ring Plastic
24B879
Conven-
tional 24C199 24C182 0.043 1.1 Stainless Steel Lock Ring Plastic
24B880
Conven-
tional 24C200 24C182 0.051 1.3 Stainless Steel Lock Ring Plastic
24B881 HVLP 24D179 24C183 0.028 0.7 Stainless Steel Indexing Plastic
24B882 HVLP 24D305 24C183 0.043 1.1 Stainless Steel Indexing Plastic
24B883 HVLP 24D306 24C183 0.051 1.3 Stainless Steel Indexing Plastic
24B884 HiTEch 24D303 24D703 0.028 0.7 Stainless Steel Ultra Precision Stainless Steel
24B885 HiTEch 24C221 24D703 0.039 1.0 Carbide Ultra Precision Stainless Steel
24B886 HiTEch 24C201 24D704 0.059 1.5 Carbide Ultra Precision Stainless Steel
24B887 LVMP 24D277 24C184 0.020 0.5 Stainless Steel Indexing Plastic
24B888 LVMP 24D278 24C184 0.028 0.7 Stainless Steel Indexing Plastic
24B889 LVMP 24D279 24C184 0.035 0.9 Stainless Steel Indexing Plastic
24M393 LVMP 24C221 24C184 0.039 1.0 Carbide Indexing Plastic
24P995 LVMP 24R001 24C184 0.039 1.0 Stainless Steel Indexing Plastic
24B890 LVMP 24D280 24C184 0.043 1.1 Stainless Steel Indexing Plastic
24B891 LVMP 24D281 24C184 0.051 1.3 Stainless Steel Indexing Plastic
24P996 LVMP 24R002 24C184 0.051 1.3 Stainless Steel Indexing Plastic
24B892 Air Brush 24C197 24D705 0.028 0.7 Stainless Steel Indexing Plastic
24B893 N/A N/A N/A N/A N/A NA Indexing Plastic