Graco XTR 7 User manual

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2004, Graco Inc. is registered to I.S. EN ISO 9001
For use with Protective Coating Materials
XTR 7, Part No. 248609
Heavy Duty RAC tip guard, no tip
7250 psi (50 MPa, 500 bar) Maximum Working Pressure
XTR 7, Part No. 248610
Standard (non-reversing) Dripless™Tip Guard, 519 Flat Tip
7250 psi (50 MPa, 500 bar) Maximum Working Pressure
XTR 7, Part Nos. 248611, 248612, 248613, 248614
Heavy Duty RAC tip guard, 519 SwitchTip™
7250 psi (50 MPa, 500 bar) Maximum Working Pressure TI5045A
310743A
Instructions
XTR™7 Airless
Spray Gun
Read warnings and instructions.
ll 2 G

2310743A
Contents
Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 3
System Requirements . . . . . . . . . . . . . . . . . . . . . . . 6
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Gun Trigger Safety . . . . . . . . . . . . . . . . . . . . . . . . . 8
Important . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 10
Operating Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Adjusting Spray Pattern . . . . . . . . . . . . . . . . . . 14
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cleaning Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
XTR 7 Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
XTR 7 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Part Nos. 248609, 248611, 248612, 248613,
248614 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
XTR 7 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Part No. 248610 . . . . . . . . . . . . . . . . . . . . . . . . 32
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
XTR 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 34
Graco Phone Numbers . . . . . . . . . . . . . . . . . . . . . 34

Manual Conventions
310743A 3
Manual Conventions
Warning Caution
Note
WARNING
A warning alerts you to possible serious injury or
death if you do not follow instructions.
Symbols, such as fire and explosion (shown), alert you
to a specific hazard and direct you to read the indi-
cated hazard warnings on pages 4-5.
CAUTION
A caution alerts you to possible equipment damage or
destruction if you do not follow instructions.
A note indicates additional helpful information.

Manual Conventions
4310743A
Warning
Injection Hazard
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just
a cut, but it is a serious injury that can result in amputation. Get immediate medical attention.
• Do not point the gun at anyone or at any part of the body.
• Do not put your hand or fingers over the gun fluid nozzle.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not “blow back” fluid; this is not an air spray system.
• Follow Pressure Relief Procedure, page 10, when you stop spraying and before cleaning, checking,
or servicing equipment.
• Use lowest possible pressure when flushing, priming, or troubleshooting.
• Never spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately. High pres-
sure hose cannot be recoupled; replace the entire hose.
Fire and Explosion Hazard
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 and plastic drop cloths (potential static
arc).
• Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.
• Keep the work area free of debris, including solvent, rags, and gasoline.
• Ground equipment and conductive objects. See Grounding, page 7.
• Hold gun firmly to side of grounded pail when triggering into pail.
• Use only grounded hoses.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
Burn Hazard
This equipment is used with heated fluid, which can cause equipment surfaces to become very hot. To
avoid severe burns:
• Do not touch hot fluid or equipment.
• Allow equipment to cool completely before touching it.
• Wear gloves if fluid temperature exceeds 110° F (43° C).

Manual Conventions
310743A 5
Equipment Misuse Hazard
Misuse can cause serious injury or death.
• For professional use only.
• Use equipment only for its intended purpose. Call your Graco distributor for information.
• Read manuals, warnings, tags, and labels before operating equipment. Follow instructions.
• Check equipment daily. Repair or replace worn or damaged parts immediately.
• Do not alter or modify equipment. Use only Graco parts and accessories.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system com-
ponent. See Repair in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Repair in all equip-
ment manuals. Read fluid and solvent manufacturer’s warnings.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not use hoses to pull equipment.
• Comply with all applicable safety regulations.
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 swal-
lowed.
• Read Material Safety Data Sheet (MSDS) 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.
PERSONAL PROTECTIVE EQUIPMENT
You must wear proper 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, and
hearing loss. This equipment includes but is not limited to:
• Protective eye wear
• Gloves, clothing, and respirator as recommended by the fluid and solvent manufacturer
• Hearing protection
Recoil Hazard
The gun can recoil when triggered at very high pressure. If unprepared, this could force your hand back
or cause you to fall and injure yourself. Be sure you have firm footing and hold the gun securely.
Warning

System Requirements
6310743A
System Requirements
• Install a bleed-type master air valve on a pneumatic pump air supply line to relieve air trapped between this valve and
the pump after air regulator is shut off. Trapped air can cause the pump to cycle unexpectedly.
• Install a fluid drain valve between the pump and gun to relieve pressure in displacement pump, hose, and gun. Trig-
gering gun to relieve pressure may not be sufficient. See Pressure Relief Procedure, page 10.

Grounding
310743A 7
Grounding
Check your local electrical code and pump/sprayer manual for detailed grounding instructions.
•Spray gun: ground through connection to a grounded fluid hose and pump/sprayer.
•Fluid hose: use only grounded hoses.
•Fluid supply container: follow local code.
•Object being sprayed: follow local code.
WARNING
Read warnings, page 3.
•Solvent flushing pails: follow local code. Use only con-
ductive metal pails placed on a grounded surface. Do
not place pail on a non conductive surface, such as
paper or cardboard, which interrupts grounding continu-
ity. TI11021 TI11022
•To maintain grounding continuity when flushing or
relieving pressure: hold metal part of gun firmly to side
of grounded metal pail, then trigger gun.
TI5047A
TI5046A

Gun Trigger Safety
8310743A
Gun Trigger Safety
WARNING
Read warnings, page 3.
A wallet-sized warning card with important injec-
tion treatment information is included with the gun.
Additional cards are available at no charge. Pro-
vide a card to all operators.
1. To engage trigger lock: turn it to position A. If engaged,
gun will not trigger. Engage trigger lock whenever you stop
spraying to avoid accidental triggering
2. To disengage trigger lock: turn it to position B.
A
Ti1950A
B
Ti1949A

Important
310743A 9
Important
Do not try to unscrew the gun housing from the handle. Do not use a vice grips or place the gun in a vice to separate the
gun handle from the head. Separating the gun head from the handle in this way may damage or break off the alignment
notch on the gun handle.
Trigger Lock Positions
Locked
Unlocked (Disengaged) (Engaged)
Ti1948A Ti1949A

Pressure Relief Procedure
10 310743A
Pressure Relief Procedure
WARNING
Read warnings, page 3.
1. Engage trigger lock.
TI5049A
2. Shut off pump.
3. Disengage trigger lock.
TI5048A
4. Hold a metal part of the gun firmly to a grounded metal pail.
Trigger gun to relieve pressure.
T12178A

Pressure Relief Procedure
310743A 11
5. Engage trigger lock.
TI5049A
6. Open drain valve. Leave drain valve open.
TI5175A
7. If pressure is not fully relieved:
• Spray tip is clogged
SwitchTip:Follow procedure on page 16.
Flat Tip: Slowly loosen tip guard retaining nut to relieve pressure. Remove and clear tip.
• Hose is clogged
Slowly loosen hose end coupling to relieve pressure. Clean hose obstruction.

Operating Gun
12 310743A
Operating Gun
WARNING
Read warnings, page 3.
Strain the fluid if it contains particles that could clog the fluid tip.
1. Connect a grounded fluid hose.
2. Without spray tip, flush pump. Use lowest pressure possi-
ble.
Solvent
TI5047A
3. Prime.
Paint

Operating Gun
310743A 13
4. Follow Pressure Relief Procedure, page 10.
TI5047A
5. Install spray tip and tip guard.
TI5047A
6. Start pump and spray onto test paper.
a. Adjust fluid pressure until spray is completely
atomized.
b. If adjusting pressure does not give a good spray
pattern, follow Pressure Relief Procedure, page
10, then try another tip size.
7. Trigger gun full-open or full-close.

Operating Gun
14 310743A
Adjusting Spray Pattern
Spray Pattern Size
The spray tip orifice and spray angle determine pattern coverage and size. When you need more coverage, use a
larger spray tip rather than increasing fluid pressure.
Spray Pattern Direction
1. Follow Pressure Relief Procedure, page 10. Engage trig-
ger lock.
TI5046A
2. Loosen tip guard retaining nut (C).
C
TI5177A
3. For a vertical pattern, turn tip guard to position E. For a
horizontal pattern turn to position D.
ED
TI5178A TI5179A
4. Tighten nut (C). C
TI5180A

Maintenance
310743A 15
Maintenance
Cleaning Spray Tip and Tip Guard
2. Clean spray tip with a solvent-soaked brush.
•Clean front of tip frequently to reduce fluid buildup.
•Clean tip and tip guard at end of each work day.
WARNING
Read warnings, page 3.
CAUTION
• To avoid ruining packings, do not soak entire gun
in solvent.
• Never hang gun by the tip guard. Damaging tip
guard edges causes paint to collect there.
1. Follow Pressure Relief Procedure, page 10. Engage
trigger lock.
TI5046A

Maintenance
16 310743A
If RAC Spray Tip Clogs
1. If spray tip clogs while spraying, stop spraying immediately.
WARNING
Read warnings, page 3.
2. Engage trigger lock.
TI5049A
3. Rotate (G) 180° (arrow points back).
TI5181A
G
TI5181A
4. Disengage trigger lock.
TI5049A
5. To remove clog, trigger gun into a pail or onto the ground.
TI5046A

Maintenance
310743A 17
8. If tip is still clogged:
6. Engage trigger lock.
TI5049A
7. Rotate (G) 180° to spraying position (arrow points
forward).
a. Engage trigger lock.
G
TI5182A
TI5048A
b. Shut off sprayer and disconnect power source.
c. Open fluid drain valve to relieve pressure.

Flushing
18 310743A
Flushing
Flush pump and gun before fluid can dry in it. If available, use flushing procedure provided in your pump or sprayer
manual instead of this procedure.
d. Remove and clean GHD RAC spray tip.
WARNING
Read warnings, page 3.
TI5183A
1. Follow Pressure Relief Procedure, page 10. Engage trig-
ger lock.
TI5046A TI5049A
2. Remove tip guard and spray tip. Clean with solvent. See
page 15.
TI5183A

Flushing
310743A 19
6. Trigger gun into solvent pail. Circulate fluid until system is thoroughly flushed.
3. Put the pump intake in a grounded pail of compatible
solvent.
4. Start pump at its lowest pressure.
5. Disengage trigger lock, then trigger gun into the
paint pail. When solvent appears, release trigger.
TI5047A
TI5048A

Cleaning Filter
20 310743A
Cleaning Filter
1. Follow Pressure Relief Procedure, page 10.
7. Follow Pressure Relief Procedure, page 10.
Engage trigger lock.
WARNING
Read warnings, page 3.
TI5046A TI5049A
2. Engage trigger lock.
TI5049A