Graco AirPro 313516C User manual

313516C
Instructions-Parts
Automatic AirPro®
Spray Guns
Conventional, HVLP, and Compliant guns for spraying paints and coatings.
See page 2 for model information.
100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure
100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
Part 24A749 Conventional Gun shown
mounted on Part 288217 Manifold
Part 24A753 Conventional Gun with fluid control
shown mounted on Part 288223 Manifold.
ti13585a
ti13586a
II2GcIIBT6

Models
2313516C
Contents
Models .............................2
Warnings ...........................3
Selection Charts .....................5
Air Flow ............................8
Installation .........................10
Setup .............................14
Operation ..........................18
Troubleshooting .....................21
Service ............................23
Parts..............................26
Repair Kits .........................28
Accessories ........................34
Dimensions ........................36
Mounting Hole Layouts ...............38
Technical Data ......................43
Graco Standard Warranty .............44
Graco Information ...................44
Models
NOTE: A manifold is required for each gun to be installed. Refer to the Parts section for manifold
information.
Application
Orifice Size
in. (mm) Conventional HVLP Compliant
General Metal 0.020 (0.5) 24B333 24B334 24B335
General Metal 0.030 (0.8) 24A747 24A754 24A761
General Metal 0.042 (1.1) 24A748 24A755 24A762
General Metal 0.055 (1.4) 24A749 24A756 24A763
General Metal 0.070 (1.8) 24A750 24A757 24A764
General Metal with Fluid Control Knob 0.030 (0.8) 24A751 24A758 24A765
General Metal with Fluid Control Knob 0.042 (1.1) 24A752 24A759 24A766
General Metal with Fluid Control Knob 0.055 (1.4) 24A753 24A760 24A767
High Wear 0.059 (1.5) 24A774 24A776 24A778
High Wear 0.070 (1.8) 24A775 24A777 24A779
High Wear 0.086 (2.2) 24B336
High Wear 0.110 (2.8) 24C316
Wood 0.030 (0.8) 24A768 24A770 24A772
Wood 0.040 (1.0) 24A769 24A771 24A773

Warnings
313516C 3
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 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.
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.
• 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.
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.
• Do not leave the work area while equipment is energized or under pressure. Turn
off all equipment and follow the Pressure Relief Procedure in this manual 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.
WARNING

Warnings
4313516C
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 immedi-
ately.
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 appli-
cable guidelines.
• Always wear impervious gloves when spraying or cleaning equipment.
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, 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
WARNING

Selection Charts
313516C 5
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
General Metal Applications
★With Fluid Control Knob (for fine adjustment of fluid flow).
Gun
Assembly
Part No. Type
Includes: Air Cap
Part No.
(without pin,
for reference)
Orifice
Size
in. (mm)
Material Usage
Needle/
Nozzle Kit
Part No.
Air Cap
with Pin
Part No. Viscosity
Flow
oz./min. (l/min.)
24B333 Conventional 24B332 24B544 289773 0.020 (0.5) light 2–6 (0.06–0.18)
24A747 Conventional 24A687 24B544 289773 0.030 (0.8) light 4–10 (0.12–0.30)
24A748 Conventional 24A688 24B544 289773 0.042 (1.1) light-medium 8–14 (0.24–0.42)
24A749 Conventional 24A689 24B544 289773 0.055 (1.4) medium 12–18 (0.36–0.54)
24A750 Conventional 24A690 24B545 289784 0.070 (1.8) medium-heavy 16–20 (0.48–0.60)
24B334 HVLP 24B332 24B539 289041 0.020 (0.5) light 2–6 (0.06–0.18)
24A754 HVLP 24A687 24B539 289041 0.030 (0.8) light 4–10 (0.12–0.30)
24A755 HVLP 24A688 24B539 289041 0.042 (1.1) light-medium 8–14 (0.24–0.42)
24A756 HVLP 24A689 24B539 289041 0.055 (1.4) medium 12–18 (0.36–0.54)
24A757 HVLP 24A690 24B539 289041 0.070 (1.8) medium-heavy 16–20 (0.48–0.60)
24B335 Compliant 24B332 24B540 289042 0.020 (0.5) light 2–6 (0.06–0.18)
24A761 Compliant 24A687 24B540 289042 0.030 (0.8) light 4–10 (0.12–0.30)
24A762 Compliant 24A688 24B540 289042 0.042 (1.1) light-medium 8–14 (0.24–0.42)
24A763 Compliant 24A689 24B540 289042 0.055 (1.4) medium 12–18 (0.36–0.54)
24A764 Compliant 24A690 24B540 289042 0.070 (1.8) medium-heavy 16–20 (0.48–0.60)
24A751★Conventional 24A687 24B544 289773 0.030 (0.8) light 4–10 (0.12–0.30)
24A752★Conventional 24A688 24B544 289773 0.042 (1.1) light-medium 8–14 (0.24–0.42)
24A753★Conventional 24A689 24B544 289773 0.055 (1.4) medium 12–18 (0.36–0.54)
24A758★HVLP 24A687 24B539 289041 0.030 (0.8) light 4–10 (0.12–0.30)
24A759★HVLP 24A688 24B539 289041 0.042 (1.1) light-medium 8–14 (0.24–0.42)
24A760★HVLP 24A689 24B539 289041 0.055 (1.4) medium 12–18 (0.36–0.54)
24A765★Compliant 24A687 24B540 289042 0.030 (0.8) light 4–10 (0.12–0.30)
24A766★Compliant 24A688 24B540 289042 0.042 (1.1) light-medium 8–14 (0.24–0.42)
24A767★Compliant 24A689 24B540 289042 0.055 (1.4) medium 12–18 (0.36–0.54)

Selection Charts
6313516C
High Wear Applications
✠Needle tip and nozzle exit constructed from tungsten carbide.
Wood Applications
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 7, for maximum inlet pressures.
Compliant Guns
A compliant gun is a high transfer efficiency
gun that has been tested to have a transfer
efficiency greater than or equal to HVLP guns.
In addition, the compliant air cap consumes
much less air than the HVLP air cap. Graco
compliant guns have no restrictions on air cap
pressures. See the Air Cap chart, page 7, for
maximum inlet pressures.
Gun
Assembly
Part No. Type
Includes: Air Cap
Part No.
(without pin,
for reference)
Orifice
Size
in. (mm)
Material Usage
Needle/
Nozzle Kit
Part No.
Air Cap
with Pin
Part No. Viscosity
Flow
oz./min. (l/min.)
24A774✠Conventional 24A693 24B537 288861 0.059 (1.5) medium 12–18 (0.36–0.54)
24A775✠Conventional 24A694 24B536 289049 0.070 (1.8) medium-heavy 16–20 (0.48–0.60)
24B336✠Conventional 24B358 24B536 289049 0.086 (2.2) heavy >20 (>0.60)
24C316✠Conventional 24C142 24B536 289049 0.110 (2.8) heavy >25 (>0.74)
24A776✠HVLP 24A695 24B541 289115 0.059 (1.5) medium 12–18 (0.36–0.54)
24A777✠HVLP 24A696 24B542 289325 0.070 (1.8) medium-heavy 16–20 (0.48–0.60)
24A778✠Compliant 24A695 24B538 289050 0.059 (1.5) medium 12–18 (0.36–0.54)
24A779✠Compliant 24A696 24B543 289327 0.070 (1.8) medium-heavy 16–20 (0.48–0.60)
Gun
Assembly
Part No. Type
Includes: Air Cap
Part No.
(without pin,
for reference)
Orifice
Size
in. (mm)
Material Usage
Needle/
Nozzle Kit
Part No.
Air Cap
with Pin
Part No. Viscosity
Flow
oz./min. (l/min.)
24A768 Conventional 24A691 24B533 288862 0.030 (0.8) light 4–10 (0.12–0.30)
24A769 Conventional 24A692 24B533 288862 0.040 (1.0) light-medium 8–14 (0.24–0.42)
24A770 HVLP 24A691 24B535 288864 0.030 (0.8) light 4–10 (0.12–0.30)
24A771 HVLP 24A692 24B535 288864 0.040 (1.0) light-medium 8–14 (0.24–0.42)
24A772 Compliant 24A691 24B534 288863 0.030 (0.8) light 4–10 (0.12–0.30)
24A773 Compliant 24A692 24B534 288863 0.040 (1.0) light-medium 8–14 (0.24–0.42)

Selection Charts
313516C 7
Conventional Guns
An airspray gun has excellent atomization and
high production rates typically with some
reduction in transfer efficiency.
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 high wear gun mod-
els are recommended.
Air Caps
Air Cap
Part
No. Type Application
Nozzle
Orifice
in. (mm)
Atomizing Air
Max. HVLP/Compliant
Manifold Inlet Pressure
psi (MPa, bar)
Fan Air
Max. HVLP/Compliant
Manifold Inlet Pressure
psi (MPa, bar)
289773 Conventional General Metal
0.020–0.055
(0.5–1.4) N/A N/A
289784 Conventional General Metal 0.070 (1.8) N/A N/A
289041 HVLP General Metal
0.020–0.070
(0.5–1.8) 17 (0.12, 1.2) 29 (0.20, 2.0)
289042 Compliant General Metal
0.020–0.070
(0.5–1.8) 29 (0.20, 2.0) 33 (0.23, 2.3)
288861 Conventional High Wear 0.059 (1.5) N/A N/A
289049 Conventional High Wear
0.070–0.086
(1.8–2.2) N/A N/A
289115 HVLP High Wear 0.059 (1.5) 18 (0.12, 1.2) 28 (0.19, 1.9)
289325 HVLP High Wear 0.070 (1.8) 18 (0.12, 1.2) 27 (0.19, 1.9)
289050 Compliant High Wear 0.059 (1.5) 28 (0.19, 1.9) 31 (0.21, 2.1)
289327 Compliant High Wear 0.070 (1.8) 29 (0.20, 2.0) 32 (0.22, 2.2)
288862 Conventional Wood
0.030–0.040
(0.8–1.0) N/A N/A
288864 HVLP Wood
0.030–0.040
(0.8–1.0) 24 (0.17, 1.7) 26 (0.18, 1.8)
288863 Compliant Wood
0.030–0.040
(0.8–1.0) 27 (0.19, 1.9) 42 (0.29, 2.9)

Air Flow
8313516C
Air Flow
See the chart to determine air consumption. Add the air consumption values shown for the atom-
izing air and fan air pressures to get the total air consumption. For example, air cap 24B544 with
20 psi atomizing air pressure uses 3 scfm atomizing air. A 30 psi fan inlet pressure adds 5 scfm
fan air for a total of 8 scfm air consumption.
Air cap
Atomizing Air Fan Air
Manifold Inlet Pressure
psi (MPa, bar)
Air Flow
SCFM
Manifold Inlet Pressure
psi (MPa, bar)
Air Flow
SCFM
289773
10 (0.07, 0.7) 2 10 (0.07, 0.7) 2
20 (0.14, 1.4) 3 20 (0.14, 1.4) 4
30 (0.21, 2.1) 5 30 (0.21, 2.1) 5
40 (0.28, 2.8) 7 40 (0.28, 2.8) 7
50 (0.34, 3.4) 8 50 (0.34, 3.4) 9
289041
10 (0.07, 0.7) 3 10 (0.07, 0.7) 4
20 (0.14, 1.4) 7 20 (0.14, 1.4) 7
30 (0.21, 2.1) 10 30 (0.21, 2.1) 11
40 (0.28, 2.8) 13 40 (0.28, 2.8) 14
50 (0.34, 3.4) 17 50 (0.34, 3.4) 18
17* (0.12, 1.2) 6 29* (0.20, 2.0) 10
288861
10 (0.07, 0.7) 2 10 (0.07, 0.7) 2
20 (0.14, 1.4) 4 20 (0.14, 1.4) 5
30 (0.21, 2.1) 6 30 (0.21, 2.1) 7
40 (0.28, 2.8) 8 40 (0.28, 2.8) 10
50 (0.34, 3.4) 11 50 (0.34, 3.4) 12
289115
10 (0.07, 0.7) 3 10 (0.07, 0.7) 4
20 (0.14, 1.4) 7 20 (0.14, 1.4) 7
30 (0.21, 2.1) 10 30 (0.21, 2.1) 11
40 (0.28, 2.8) 14 40 (0.28, 2.8) 15
50 (0.34, 3.4) 17 50 (0.34, 3.4) 19
18* (0.12, 1.2) 6 28* (0.19, 1.9) 10
289050
10 (0.07, 0.7) 1 10 (0.07, 0.7) 2
20 (0.14, 1.4) 3 20 (0.14, 1.4) 4
30 (0.21, 2.1) 4 30 (0.21, 2.1) 6
40 (0.28, 2.8) 5 40 (0.28, 2.8) 8
50 (0.34, 3.4) 7 50 (0.34, 3.4) 10
28* (0.19, 1.9) 4 31* (0.21, 2.1) 6
288862
10 (0.07, 0.7) 2 5 (0.035, 0.35) 1
20 (0.14, 1.4) 4 10 (0.07, 0.7) 3
30 (0.21, 2.1) 6 15 (0.10, 1.0) 4
40 (0.28, 2.8) 7 20 (0.14, 1.4) 5
50 (0.34, 3.4) 9 25 (0.17, 1.7) 7

Air Flow
313516C 9
* Maximum HVLP/Compliant inlet manifold pressure.
288863
10 (0.07, 0.7) 2 10 (0.07, 0.7) 3
20 (0.14, 1.4) 4 20 (0.14, 1.4) 5
30 (0.21, 2.1) 5 30 (0.21, 2.1) 8
40 (0.28, 2.8) 7 40 (0.28, 2.8) 11
50 (0.34, 3.4) 9 50 (0.34, 3.4) 13
27* (0.19, 1.9) 5 42* (0.29, 2.9) 11
289784
10 (0.07, 0.7) 2 10 (0.07, 0.7) 2
20 (0.14, 1.4) 4 20 (0.14, 1.4) 4
30 (0.21, 2.1) 6 30 (0.21, 2.1) 5
40 (0.28, 2.8) 8 40 (0.28, 2.8) 7
50 (0.34, 3.4) 10 50 (0.34, 3.4) 9
289042
10 (0.07, 0.7) 2 10 (0.07, 0.7) 2
20 (0.14, 1.4) 4 20 (0.14, 1.4) 4
30 (0.21, 2.1) 6 30 (0.21, 2.1) 6
40 (0.28, 2.8) 8 40 (0.28, 2.8) 8
50 (0.34, 3.4) 10 50 (0.34, 3.4) 10
29* (0.20, 2.0) 6 33* (0.23, 2.3) 7
289049
10 (0.07, 0.7) 1 10 (0.07, 0.7) 2
20 (0.14, 1.4) 3 20 (0.14, 1.4) 4
30 (0.21, 2.1) 4 30 (0.21, 2.1) 7
40 (0.28, 2.8) 6 40 (0.28, 2.8) 9
50 (0.34, 3.4) 7 50 (0.34, 3.4) 11
289325
10 (0.07, 0.7) 4 10 (0.07, 0.7) 4
20 (0.14, 1.4) 7 20 (0.14, 1.4) 7
30 (0.21, 2.1) 11 30 (0.21, 2.1) 11
40 (0.28, 2.8) 14 40 (0.28, 2.8) 14
50 (0.34, 3.4) 18 50 (0.34, 3.4) 18
18* (0.12, 1.2) 6 27* (0.19, 1.9) 10
289327
10 (0.07, 0.7) 2 10 (0.07, 0.7) 2
20 (0.14, 1.4) 4 20 (0.14, 1.4) 4
30 (0.21, 2.1) 6 30 (0.21, 2.1) 6
40 (0.28, 2.8) 7 40 (0.28, 2.8) 8
50 (0.34, 3.4) 9 50 (0.34, 3.4) 10
29* (0.20, 2.0) 5 32* (0.22, 2.2) 7
288864
10 (0.07, 0.7) 4 10 (0.07, 0.7) 3
20 (0.14, 1.4) 7 20 (0.14, 1.4) 6
30 (0.21, 2.1) 11 30 (0.21, 2.1) 10
40 (0.28, 2.8) 14 40 (0.28, 2.8) 13
50 (0.34, 3.4) 18 50 (0.34, 3.4) 16
24* (0.17, 1.7) 9 26* (0.18, 1.8) 8
Air cap
Atomizing Air Fan Air
Manifold Inlet Pressure
psi (MPa, bar)
Air Flow
SCFM
Manifold Inlet Pressure
psi (MPa, bar)
Air Flow
SCFM

Installation
10 313516C
Installation
The Automatic AirPro spray gun can spray
most coatings or finishes currently being used
for automotive, industrial, aerospace, marine,
wood, plastic and architectural applications,
while easily operating from paint delivery sys-
tems, such as pressure pots or remote pumps
for production line operation.
The air regulator must have a minimum air flow
capacity of 30 scfm at 100 psi (0.7 MPa, 7.0
bar) air pressure.
Ventilate Spray Booth
• Check and follow all national, state, and
local codes regarding air exhaust velocity
requirements.
• Check and follow all local safety and fire
codes.
Configure Gun and Manifold
The gun is supplied with an internal fluid plug
and seals (19, 20, 21). To use the gun in a cir-
culating system, remove the internal plug. In a
non-circulating system, leave the plug in place
to minimize flush time.
Circulating System
1. Apply anti-seize lubricant to the threads
and mating faces of the manifold (101) and
the elbows (107), supplied unassembled.
2. Install the elbows (107) in both fluid ports of
the manifold (101).
3. Connect the fluid supply line to one elbow
and the fluid return line to the other. The
manifold fluid ports are reversible.
4. Install the gun on the manifold, using the
four screws (13). Start the threads of all
four screws. Tighten the front two screws
first, and then tighten the back two. Torque
all four screws evenly to 65 in-lb (7.3 N•m).
Non-circulating System
1. See FIG. 1. Apply anti-seize lubricant to the
threads and mating faces of the manifold
(101), plug (109), and elbow (107), sup-
plied unassembled.
2. Install an elbow (107) in one fluid port of
the manifold (101), and a plug (109) in the
other port.
3. Install the internal plug (19) in the gun fluid
port on the same side as the manifold plug.
4. Connect the fluid supply line to the fluid
inlet elbow (107).
5. Install the gun on the manifold, using the
four screws supplied. Start the threads of
all four screws. Tighten the front two
screws first, and then tighten the back two.
Torque all four screws evenly to 65 in-lb
(7.3 N•m).
FIG. 1: Non-Circulating Setup Shown (cutaway view)
Remove when used in circulating systems.
1
ti8587b
1
Replace with elbow (107) when used in
circulating systems.
2
2
19
101
107
109
21
20