Graco 510 Manual

Instructions
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441
Copyright 1994, Graco Inc. is registered to I.S. EN ISO 9001
MODEL 510
Airless Spray Gun
7400 psi (50.8 MPa, 510 bar) Maximum Working Pressure
Part No. 236995, Series B
Includes a Heavy-Duty 510 RAC IV Tip Guard and size 619 SwitchTip.
308438F
Read warnings and instructions.
See page 2 for Table of Contents.
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II 2 G

3084382
Table of Contents
Symbols 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation/Operation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Requirements 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Use the Gun Trigger Safety 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Relief Procedure 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Operate the Gun 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Adjust the Spray Pattern 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Care of the Spray Tip and Tip Guard 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Flush the Gun 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Check the Gun Diffuser Operation 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Information 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.

308438 3
WARNING
INJECTION HAZARD
Spray from the gun, hose leaks or ruptured components can inject fluid into your body and cause an
extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin
can also cause serious injury.
DFluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medi-
cal attention.
DDo not point the spray gun at anyone or any part of the body.
DDo not put hand or fingers over the spray tip.
DDo not stop or deflect fluid leaks with your hand, body, glove or rag.
DDo not “blow back” fluid; this is not an air spray system.
DAlways have the tip guard and the trigger guard on the spray gun when spraying.
DCheck the gun diffuser operation weekly.
DBe sure the gun trigger safety operates before spraying.
DLock the gun trigger safety when you stop spraying.
DFollow the Pressure Relief Procedure on page 7 if the spray tip clogs and whenever you: are
instructed to relieve pressure; stop spraying; clean, check, or service the equipment; and install or
clean the spray tip.
DTighten all fluid connections before operating the equipment.
DCheck the hoses, tubes and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
TOXIC FLUID HAZARD
Hazardous fluids or toxic fumes can cause serious injury or death if splashed in the eyes or on the
skin, swallowed, or inhaled.
DKnow the specific hazards of the fluid you are using. Read the fluid manufacturer’s warnings.
DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
DWear the appropriate clothing, gloves, eyewear and respirator.

3084384
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor air ventilation, open flames or sparks can cause a hazardous condition and
result in fire or explosion and serious injury.
DGround the equipment and the object being sprayed. See Ground the System on page 6.
DIf there is any static sparking while using the equipment, stop spraying immediately. Identify and
correct the problem.
DProvide fresh air ventilation to avoid the buildup of flammable vapors from solvent or the fluid being
sprayed.
DDo not smoke in the spray area.
DExtinguish all open flames or pilot lights in the spray area.
DDo not turn on or off any light switch in the spray area while operating or if fumes are present.
DElectrically disconnect all equipment in the spray area.
DKeep the spray area free of debris, including solvent, rags, and gasoline.
DDo not operate a gasoline engine in the spray area.
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture, malfunction or start unexpectedly and result in
serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco
distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck the equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated system component. This equip-
ment has a 7400 psi (50.8 MPa, 510 bar) Maximum Working Pressure.
DUse fluids or solvents which are compatible with equipment wetted parts. See the Technical Data
section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
DRoute the hoses away from the traffic areas, sharp edges, moving parts, and hot surfaces. Do not
expose Graco hoses to temperatures above 180_F (82_C) or below –40_F (–40_C).
DUse only Graco approved hoses. Do not remove hose spring guards, which help protect the hose
from rupture caused by kinks or bends near the couplings.
DWear hearing protection when operating this equipment.
DComply with all applicable local, state and national fire, electrical and other safety regulations.
RECOIL HAZARD
Due to the very high fluid pressure, a strong recoil action will occur when you trigger this gun. If you
are unprepared, your hand could be forced back toward your body or you could lose your balance and
fall, resulting in serious injury.

308438 5
Notes

3084386
Installation/Operation
System Requirements
WARNING
INJECTION HAZARD
Keep the wallet-sized warning card,
provided with this gun, with the operator
at all times. The card contains important
treatment information should an injection injury
occur. Additional cards are available at no charge
from Graco Inc.
WARNING
The equipment must have a bleed-type master air
valve (pneumatic pumps only) and a fluid drain
valve. These accessories help reduce the risk of
serious injury from injection, splashing in the eyes
or on the skin, or moving parts, when adjusting or
repairing the pump or gun.
1. The bleed-type master air valve relieves air
trapped between this valve and the pneumatic
pump after the air regulator is shut off. Trapped air
can cause the pump to cycle unexpectedly.
2. The fluid drain valve assists in relieving fluid pres-
sure in the displacement pump, hose and gun;
triggering the gun to relieve pressure may not be
sufficient.
Ground the System
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding could cause static
sparking, which could cause a fire or
explosion. To reduce the risk of property
damage or serious injury, ground the
pump and all other equipment used or
located in the spray area. Also read FIRE OR
EXPLOSION HAZARD on page 4.
Check your local electrical code for detailed grounding
instructions for your area and type of equipment. Also
follow the grounding instructions provided in your
pump or sprayer manual. The gun obtains grounding
through connection to a properly grounded fluid hose
and pump or sprayer.
How to Use the Gun Trigger Safety
1. To lock the gun trigger safety, turn the safety to a
right angle with the gun body. See Fig. 1.
2. To unlock the gun trigger safety, push the safety
out and turn it parallel with the gun body. See
Fig. 1.
Fig. 1
1
2
Gun trigger safety shown locked
Gun trigger safety shown unlocked
1
2
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308438 7
Installation/Operation
Pressure Relief Procedure
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. Fluid
under high pressure can be injected through the
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:
Dare instructed to relieve the pressure,
Dstop spraying,
Dcheck or service any of the system equipment,
Dor install or clean the spray tip.
1. Lock the gun trigger safety.
2. Shut off the power to the pump. Open the bleed-
type master air valve (pneumatic pumps only).
3. Unlock the gun trigger safety.
4. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
5. Lock the gun trigger safety.
6. Open the fluid drain valve, having a container
ready to catch the drainage. Leave the drain valve
open until you are ready to spray again.
7. If you suspect that the spray tip or hose is com-
pletely clogged or that pressure has not been fully
relieved, very slowly loosen the tip guard retaining
nut or hose end coupling and relieve pressure
gradually. Clean the tip or hose obstruction.

3084388
Installation/Operation
How to Operate the Gun
WARNING
RECOIL HAZARD
Due to the very high pressure, a strong
recoil action will occur when you trigger
the gun. If you are unprepared, your
hand could be forced back toward your body or you
could lose your balance and fall, resulting in seri-
ous injury.
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
including injection:
DDo not exceed the maximum working pressure
of the gun or the lowest rated component in the
system.
DFollow the Pressure Relief Procedure on page
7 whenever you are instructed to relieve the
pressure.
Fig. 2
30
8
A
03967
NOTE: Strain the fluid you are spraying if it contains
particles which could clog the spray tip.
1. Connect a grounded fluid hose (A) to the gun inlet.
See Fig. 2.
2. With no tip installed, start the pump. Flush the
pump according to the instructions supplied with it.
Use the lowest pressure possible. Be sure you
have a firm footing and hold the gun securely.
Prime the system with the material.
3. Relieve the pressure.
4. Install the SwitchTip (8) and tip guard (30). Follow
the instructions in the manual, supplied. See
Fig. 2.
5. Start the pump. Trigger the gun onto test paper.
Adjust the fluid pressure until the spray is
completely atomized. Use the lowest pressure
necessary to get the desired results. Higher pres-
sure may not improve the spray pattern and will
cause premature tip and pump wear.
6. If adjusting the pressure does not give a good
spray pattern, relieve pressure and then try
another tip size.
7. Use a full-open, full-close trigger action. Hold the
gun about 14 in. (350 mm) from and at right angles
to the work surface. Don’t swing the gun in an arc.
Practice to find the best length and speed of
stroke.
How to Adjust the Spray Pattern
1. To adjust the spray pattern direction, relieve pres-
sure. Loosen the tip guard retaining nut (B). Turn
the tip guard/tip groove horizontally (C) for a
horizontal pattern and vertically (A) for a vertical
pattern. Tighten the nut. See Fig. 3.
2. The spray tip orifice and spray angle determines
the coverage and size of pattern. When more
coverage is needed, use a larger spray tip rather
than increasing fluid pressure.
CAUTION
Openings in the tip guard reduce paint buildup on the
guard while spraying. Damage to the sharp edges of
the openings causes paint to collect at that area.
Never hang the gun by the tip guard.
Fig. 3
A
B
C
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308438 9
Installation/Operation
Care of the Spray Tip and Tip Guard
WARNING
INJECTION HAZARD
To reduce the risk of injection or
splashing in the eyes or on the skin:
DDo not place a hand, body or rag in front of the
spray tip when cleaning or checking a clogged
tip. Point the gun toward the ground or into a
waste container when checking to see if the
spray tip is cleared.
DDo not try to “blow back” paint; this is not an air
spray gun.
DDo not wipe fluid buildup off the gun or spray tip
until pressure is relieved. Follow the Pressure
Relief Procedure on page 7 whenever you
are instructed to relieve the pressure.
Cleaning during the day
1. Relieve the pressure.
2. Clean the front of the tip frequently during the day
to help reduce fluid buildup. Also clean the tip and
tip guard at the end of each work day. Use a
solvent-soaked brush to clean the spray tip.
If the spray tip clogs while spraying
1. Stop spraying immediately.
2. Lock the gun trigger safety. Rotate the RAC IV tip
handle back 180_. See Fig. 4.
3. Unlock the gun trigger safety. Trigger the gun into
a pail or onto the ground to remove the clog.
4. Lock the gun trigger safety. Rotate the tip handle
to the spraying position. See Fig. 4.
5. If the tip is still clogged, engage the gun trigger
safety, shut off the sprayer and disconnect the
power source, and open the fluid drain valve to
relieve pressure. Clean the spray tip as shown in
manual 307991, supplied with the RAC IV.
CAUTION
Do not soak the entire gun in solvent. Prolonged
exposure to solvent can ruin the packings.
Fig. 4
Spraying position shown. Turn
handle 180_and trigger gun to
clear clog.
1
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30843810
Installation/Operation
How to Flush the Gun
WARNING
To reduce the risk of serious injury, including
splashing fluid in the eyes or on the skin, or static
electric discharge when flushing:
DBe sure the entire system, including flushing
pails, are properly grounded.
DRemove the tip guard and spray tip.
DMaintain metal to metal contact between the
gun and the flushing pail.
DUse the lowest possible pressure.
ÄÄÄÄ
ÄÄÄÄ
ÄÄÄÄ
WARNING
INJECTION HAZARD
To reduce the risk of an injection injury,
follow the Pressure Relief Procedure
on page 7 whenever you are instructed
to relieve the pressure.
Flush the pump and gun before the fluid can dry in it.
If it is available, the flushing procedure provided in your
pump or sprayer manual should be used instead of this
procedure.
1. Relieve the pressure.
2. Remove the tip guard and spray tip. Soak and
clean the parts.
3. Put the pump intake in a grounded pail of compat-
ible solvent.
4. Start the pump at its lowest pressure.
5. Trigger the gun into the original pail. When solvent
appears, release the trigger.
6. Now trigger the gun into the solvent pail. Circulate
the fluid until the system is thoroughly flushed.
7. Relieve the pressure.