Graco 312414D User Manual
Instructions-Parts
™
AirPro
Pressure
Feed Airspray Gun
Conventional, HVLP, and compliant guns for specialty industrial applications.
100 psi (0.7 MPa, 7 bar) Maximum Air Inlet Pressure
300 psi (2.1 MPa, 21 bar) Maximum Fluid Inlet Pressure
Important Safety Instructions
Read all warnings and instructions in
this manual. Save these instructions.
See page 2 for model information.
312414D
ll 2 G
ti1109
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
General Metal with Stainless Steel Tip . . . . . . . . 3
Automotive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Stain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Waterborne . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
High Wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Adhesives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Spatter Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Gun Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Conventional Guns . . . . . . . . . . . . . . . . . . . . . . . 6
HVLP Guns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Compliant Guns . . . . . . . . . . . . . . . . . . . . . . . . . 6
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connect Air and Fluid Lines . . . . . . . . . . . . . . . . 7
Ground the Gun . . . . . . . . . . . . . . . . . . . . . . . . . 7
Flush Before Using Equipment . . . . . . . . . . . . . . 7
Adjust Spray Pattern . . . . . . . . . . . . . . . . . . . . . . 8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 9
Apply Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Volatile Organic Compounds (VOC) Regulation . 9
Daily Gun Maintenance . . . . . . . . . . . . . . . . . . . . . 10
General Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Flush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Clean Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Compliant Cleaning Methods . . . . . . . . . . . . . . 11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 24
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 24
2 312414D
Models
General Metal Spray Guns
Conventional HVLP Compliant
Models
Max.
Orifice
Size
in. (mm)
0.020 (0.5)
0.030 (0.8)
0.042 (1.1)
0.055 (1.4)
0.070 (1.8)
0.086 (2.2)
0.110 (2.8)
Model Series
288726 A N/A 288935 A 19 (0.13, 1.3) 288942 A 29 (0.2, 2.0)
288929 A N/A 288936 A 19 (0.13, 1.3) 288943 A 29 (0.2, 2.0)
288930 A N/A 288937 A 19 (0.13, 1.3) 288944 A 29 (0.2, 2.0)
288931 A N/A 288938 A 19 (0.13, 1.3) 288945 A 29 (0.2, 2.0)
288932 A N/A 288939 A 19 (0.13, 1.3) 288946 A 29 (0.2, 2.0)
288933 A N/A 288940 A 19 (0.13, 1.3) 288947 A 29 (0.2, 2.0)
288934 A N/A 288941 A 19 (0.13, 1.3) 288948 A 29 (0.2, 2.0)
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Model Series
General Metal with Stainless Steel Tip
Conventional HVLP Compliant
Max.
Orifice
Size
in. (mm)
0.042 (1.1)
0.055 (1.4)
0.070 (1.8)
Model Series
288949 A N/A 288952 A 19 (0.13, 1.3) 288955 A 29 (0.2, 2.0)
288950 A N/A 288953 A 19 (0.13, 1.3) 288956 A 29 (0.2, 2.0)
288951 A N/A 288954 A 19 (0.13, 1.3) 288957 A 29 (0.2, 2.0)
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Model Series
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Model Series
Model Series
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Automotive
Conventional HVLP Compliant
Max.
Orifice
Size
in. (mm)
0.030 (0.8)
0.040 (1.0)
0.042 (1.1)
0.047 (1.2)
0.055 (1.4)
Model Series
288929 A N/A -- -- -- -- -- --
-- -- -- 289034 A 29 (0.2, 2.0) 289036 A 35 (0.24, 2.4)
288930 A N/A -- -- -- -- -- --
-- -- -- 289035 A 29 (0.2, 2.0) 289037 A 35 (0.24, 2.4)
288931 A N/A 289541 A 29 (0.2, 2.0) 289542 A 35 (0.24, 2.4)
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Model Series
312414D 3
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Model Series
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Models
Stain
Conventional HVLP Compliant
Orifice
Size
in. (mm)
0.020 (0.5)
0.030 (0.8)
0.040 (1.0)
Model Series
288958 A N/A 288960 A 22 (0.15, 1.5) 288962 A 29 (0.2, 2.0)
288959 A N/A 288961 A 22 (0.15, 1.5) 288963 A 29 (0.2, 2.0)
289109 A N/A 289110 A 22 (0.15, 1.5) 289111 A 29 (0.2, 2.0)
Waterborne
Orifice
Size
in. (mm)
0.030 (0.8)
0.042 (1.1)
0.055 (1.4)
Model Series
288964 A N/A 288967 A 23 (0.16, 1.6) 288970 A 23 (0.16, 1.6)
288965 A N/A 288968 A 23 (0.16, 1.6) 288971 A 23 (0.16, 1.6)
288966 A N/A 288969 A 23 (0.16, 1.6) 288972 A 23 (0.16, 1.6)
High Wear
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Conventional HVLP Compliant
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Model Series
HVLP/Compliant
Model Series
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Max.
Air Pressure
psi (MPa, bar)
Model Series
Model Series
HVLP/Compliant
Air Pressure
psi (MPa, bar)
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Max.
Max.
Conventional HVLP Compliant
Orifice
Size
in. (mm)
0.059 (1.5)
0.070 (1.8)
0.086 (2.2)
Max.
HVLP/Compliant
Air Pressure
Model Series
288973 A N/A 288976 A 20 (0.14, 1.4) 288979 A 29 (0.2, 2.0)
288974 A N/A 288977 A 20 (0.14, 1.4) 288980 A 29 (0.2, 2.0)
288975 A N/A 288978 A 20 (0.14, 1.4) 288981 A 29 (0.2, 2.0)
psi (MPa, bar)
Model Series
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Adhesives Spatter Gun
Conventional
Max.
HVLP/Compliant
Orifice Size
in. (mm)
0.051 (1.3)
0.070 (1.8)
Model Series
288982 A N/A
288983 A N/A
Air Pressure
psi (MPa, bar)
Orifice Size
in. (mm)
0.042 (1.1)
Model Series
288985 A 30 (0.21, 2.1)
Model Series
HVLP
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Max.
HVLP/Compliant
Air Pressure
psi (MPa, bar)
Max.
4 312414D
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers
to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings
may be found 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 lights on or off when flammable fumes
are present.
• Ground all equipment in the work area. See Grounding instructions.
• 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.
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 Tech-
nical Data in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about your material, request MSDS forms from
distributor or retailer.
• 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.
312414D 5
Gun Selection
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 Pressure Relief Procedure in this manual, when you stop spraying and
before cleaning, checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
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 MSDS’s to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
• Always wear impervious gloves when spraying or cleaning equipment.
WARNING
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, including
eye injury, inhalation of toxic fumes, burns, and hearing loss. This equipment includes
but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
•Gloves
• Hearing protection
Gun Selection
Conventional Guns
Excellent atomization and high production
rates typically with some reduction in transfer
efficiency.
HVLP Guns
An HVLP gun is a high transfer efficiency gun
which 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.
Compliant Guns
A compliant gun is a high transfer efficiency
gun which has been tested to have a transfer
efficiency greater than or equal to HVLP guns.
The Graco compliant guns have no restrictions
on air cap pressures, but the gun inlet pressure must remain under the maximum compliant pressure shown on pages 3-4 to remain in
compliance.
6 312414D
Setup
At least one hose must provide a static
ground to the gun.
Connect Air and Fluid Lines
1. Shut off the air supply.
Setup
5. Connect a fluid hose to the fluid inlet fitting.
See FIG. 1.
2. Install a shutoff valve (not supplied) downstream of the air regulator to shut off gun
air.
3. Install an inline air filter (not supplied) to
clean and dry the gun air supply.
4. Connect a clean, dry, filtered air supply to
the air inlet fitting. See FIG. 1.
• Recommended 5/16 in. (7.9 mm) ID
hose, optional 3/8 in. (9.5 mm) ID hose.
• Check that your shop air provides adequate air flow. See Technical Data,
page 23, for minimum cfm
requirements.
• Set shop air pressure regulator (not
supplied) according to fluid manufacturer’s recommendation. See maximum
compliant air pressure on air cap.
• Make sure no air restrictions, such as
low-volume cheater valves, obstruct the
air flow.
air inlet
FIG. 1
6. Connect other end of the fluid hose to a
regulated fluid supply line.
fluid inlet
ti11094a
Ground the Gun
Check your local electrical code and pump
manual for detailed grounding instructions.
Ground the spray gun through connection to a
Graco-approved grounded fluid or air supply
hose.
Flush Before Using Equipment
The equipment was tested with lightweight oil,
which is left in the fluid passages to protect
parts. To avoid contaminating your fluid with
oil, flush the equipment with a compatible solvent before using the equipment. See Flush,
page 10.
312414D 7
Setup
Adjust Spray Pattern
1. Rotate the air cap to achieve desired spray
pattern. See FIG. 2.
ti4839a
FIG. 2
2. To achieve full fan pattern, open the air
control valve by turning the knob fully counterclockwise. See FIG. 3.
3. To create a round pattern, turn the pattern
air off by turning the air control valve fully
clockwise. See FIG. 3.
4. Trigger gun and adjust gun air pressure.
Refer to Technical Data, page 23, for inlet
air pressure recommendations.
7. To reduce fluid flow, turn the fluid control
valve clockwise.
• If the fluid control valve is turned clockwise all the way, the gun will emit only
air.
• If you cannot achieve the correct fluid
flow with the fluid control valve, a different sized nozzle may be necessary. For
smaller fluid flow, use the next size
smaller nozzle. For a larger fluid flow,
use the next size larger nozzle.
8. Spray a test pattern. Evaluate the spray
pattern size and atomization.
9. To achieve a narrow spray pattern, turn air
control valve clockwise.
10.To improve atomization, reduce the fluid
flow rate. Increasing the air pressure can
improve atomization but may result in poor
Transfer Efficiency (TE) or non-compliant
operation.
5. To establish the correct fluid flow, turn the
fluid control valve counterclockwise until no
restriction of the trigger movement is felt,
then turn out another half turn.
air control valve
fluid control valve
air inlet valve
ti11097a
IG. 3
F
6. Adjust fluid pressure to achieve desired
fluid flow rate.
8 312414D
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