Graco 245820 User manual

309495G
EN
Operation, Parts
Inline HD™
Texture Gun
Waterbase Compatible
4000 psi (28 MPa, 280 bar) Maximum Working Pressure
Model 245820, Series C
Ball and valve needle – abrasive material compatible
Important Safety Instructions
Read all warnings and instructions in this manual. Refer to your sprayer instruction
manual for Pressure Relief, priming and spray instructions. Save these instructions.
Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Gun Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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Warnings
2309495G
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this
equipment.Theexclamationpointsymbolalertsyoutoageneralwarningandthehazardsymbols
refer to procedure-specific risks. When these symbols appear in the body of this manual or on
warninglabels,refer backto theseWarnings.Product-specifichazardsymbols and warnings not
covered in this section may appear throughout the body of this manual where applicable.
SKIN INJECTION HAZARD
High-pressure spray is able to inject toxins into the body and cause serious bodilyinjury.
In the event that injection occurs, get immediate surgical treatment.
•Do not aim the gun at, or spray any person or animal.
•Keep hands and other body parts away from the discharge. For example, do not try
to stop leaks with any part of the body.
•Always use the nozzle tip guard. Do not spray without nozzle tip guard in place.
•Use Graco nozzle tips.
•Use caution when cleaning and changing nozzle tips. In the case where the nozzle
tipclogswhilespraying,followthePressure Relief Procedureforturningofftheunit
and relieving the pressure before removing the nozzle tip to clean.
•Equipment maintains pressure after power is shut off. Do not leave the equipment
energized or under pressure while unattended. Follow the Pressure Relief
Procedure when the equipment is unattended or not in use, and before servicing,
cleaning, or removing parts.
•Check hoses and parts for signs of damage. Replace any damaged hoses or parts.
•This system is capable of producing 4000 psi. Use Graco replacement parts or
accessories that are rated a minimum of 4000 psi.
•Always engage the trigger lock when not spraying. Verify the trigger lock is
functioning properly.
•Verify that all connections are secure before operating the unit.
•Knowhowtostoptheunitand bleedpressurequickly.Bethoroughlyfamiliarwiththe
controls.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode.
Paintorsolventflowingthroughtheequipmentcancausestaticsparking.Tohelpprevent
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 sparking).
•Ground all equipment in the work area. See Grounding instructions.
•Never spray or flush solvent at high pressure.
•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.
•Use only grounded hoses.
•Holdgunfirmlytosideofgroundedpailwhentriggeringintopail.Donotusepailliners
unless they are anti-static or conductive.
•Stopoperationimmediatelyifstaticsparkingoccursoryoufeelashock.Donotuse
equipment until you identify and correct the problem.
•Keep a working fire extinguisher in the work area.

Warnings
309495G 3
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•Always wear appropriate gloves, eye protection, and a respirator or mask when
painting.
•Do not operate or spray near children. Keep children away from equipment at all
times.
•Donotoverreachorstandonanunstablesupport.Keepeffectivefootingandbalance
at all times.
•Stay alert and watch what you are doing.
•Do not operate the unit when fatigued or under the influence of drugs or alcohol.
•Do not kink or over-bend the hose.
•Do not expose the hose to temperatures or to pressures in excess of those specified
by Graco.
•Do not use the hose as a strength member to pull or lift the equipment.
•Do not spray with a hose shorter than 25 feet.
•Do not alter or modify equipment. Alterations or modifications may void agency
approvals and create safety hazards.
•Make sure all equipment is rated and approved for the environment in which you are
using it.
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can cause
seriouschemicalreactionandequipmentrupture.Failuretofollowthiswarningcanresult
in death, serious injury, or property damage.
•Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated
hydrocarbon solvents or fluids containing such solvents.
•Do not use chlorine bleach.
•Many other fluids may contain chemicals that can react with aluminum. Contact your
material supplier for compatibility.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious
injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This
protective equipment includes but is not limited to:
•Protective eyewear, and hearing protection.
•Respirators,protectiveclothing,andglovesasrecommendedbythefluidandsolvent
manufacturer.
CALIFORNIA PROPOSITION 65
This product contains achemical known to the State of California to cause cancer, birth
defects or other reproductive harm. Wash hands after handling.

Operation
4309495G
Operation
Pressure Relief Procedure
Follow the Pressure Relief
Procedure whenever you see this
symbol.
1. Turn sprayer OFF.
2. Engage the trigger lock. Always engage
the trigger lock when sprayer is stopped
to prevent the gun from being triggered
accidentally.
3. Turn pressure control knob to lowest
setting.
4. Put drain tube into a waste pail and turn
Prime/Spray valve in PRIME position
(drain) to relieve pressure.
5. Hold the gun firmly to a pail. Point gun
into pail. Disengage the trigger lock and
trigger the gun to relieve pressure.
6. Engage the trigger lock.
7. If you suspect the spray tip or hose is
clogged or that pressure has not been
fully relieved:
a. VERY SLOWLY loosen the tip
guard retaining nut or the hose end
coupling to relieve pressure
gradually.
b. Loosen the nut or coupling
completely.
c. Clear airless hose or spray tip
obstruction. See Clear Tip Clog,
page 7.
Gun Trigger Lock
This equipment stays pressurized until
pressure is manually relieved. To help
prevent serious injury from pressurized fluid,
suchasskininjectionorsplashedfluid,follow
the Pressure Relief Procedure whenever
sprayer is stopped and before sprayer is
cleanedorchecked,and beforeequipmentis
serviced.
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To prevent injury when the gun is not in
use, always engage the gun’s trigger lock
if unit is being shut down or left
unattended.
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Operation
309495G 5
Setup
Connect Gun to Sprayer
Make sure sprayer is turned off and
unplugged from power source. Refer to your
sprayer instruction manual for priming and
spray instructions.
1. Attach Graco airless hose to sprayer
fluid outlet.
2. Attach other end of hose to gun swivel.
Use two wrenches (one on the swivel
and one on the hose), to tighten all
connections securely.
3. Refer to sprayer instruction manual for
priming instructions.
Installing Tip and Tip Guard on Gun
Topreventspraytip leaksmakecertainspray
tip and tip guard are installed properly.
1. Perform Pressure Relief Procedure,
page 4.
2. Engage trigger lock.
3. Verify spray tip and tip guard parts are
assembled in the order shown.
a. Use spray tip to align gasket and
seal in the tip guard.
b. Spray tip must be pushed all the
wayintothetipguard.Turnspraytip
to push down.
c. Turn the arrow shaped handle on
the spray tip forward to the spray
position.
4. Screw spray tip and tip guard assembly
onto the gun and tighten.
If equipment has recently been operated
Pressure Relief Procedure, page 4, and
engage trigger lock. To avoid serious
injuryfromskininjection,donotplaceyour
hand in front of the spray tip when
installing or removing the spray tip.
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SPRAY TIP
RUBBER
GASKET/METAL
SEAL
RETAINING
NUT
TIP GUARD
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Operation
6309495G
Spraying
1. Unlock trigger lock.
2. Be sure the arrow shaped tip faces
forward (spray).
3. Hold gun perpendicular and
approximately 12-inches (30 cm) from
surface. Move gun first, then pull gun
trigger to spray a test pattern.
4. Slowly increase pump pressure until
coverage is uniform and even (see
sprayerinstructionmanualforadditional
information).
5. Periodically inspect gun handle vent for
fluid buildup, this could indicate an
internal leak. Service fluid tube and
o-ring as necessary.
Aligning Spray
1. Perform Pressure Relief Procedure,
page 4.
2. Loosen tip guard retaining nut.
3. Align tip guard horizontally to spray a
horizontal pattern.
4. Align tip guard vertically to spray a
vertical pattern.
Vent
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HORIZONTAL VERTICAL
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Operation
309495G 7
Clear Tip Clog
In the event that particles or debris clog the
spray tip, this sprayer is designed with a
reversible spray tip that quickly and easily
clearstheparticleswithoutdisassemblingthe
sprayer.
1. Engage trigger lock. Rotate spray tip to
unclog position. Disengage trigger lock.
Trigger gun at waste area to clear clog.
UNCLOG
NOTE: If spray tip is difficult to rotate when
turning to the unclog position perform,
Pressure Relief Procedure, page 4, then
turn Prime/Spray valve to spray position and
repeat step 1.
2. Engage trigger lock. Rotate spray tip
back to spray position. Disengage
trigger lock and continue spraying.
SPRAY
Cleanup
Flush gun after each work shift and store in
a dry location. Do not leave the gun or any
parts in water or cleaning solvents.
Maintenance
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Before performing any maintenance on
the gun, read all warnings in this manual
and the equipment manual.
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Repair
8309495G
Repair
1. Perform Pressure Relief Procedure,
page 4, and engage trigger lock.
2. Whenremovinggunfromhose,holdhex
end of fluid tube assembly (19) securely
to avoid loosening fluid tube from gun
body.
3. If fluid continues to flow after trigger is
released, gun valve may need
adjustment, be obstructed or damaged,
or valve stem (24), seat (26), or seal (3)
may be worn or damaged.
a. Adjust valve or spring tension as
instructed on page 8.
b. Replacevalveseal,stem,orseatas
instructed on page 10.
c. To inspect valve for obstruction or
damage, disassemble gun as
instructed on page 10. Clean and
inspect parts. Replace any worn or
damaged parts and assemble gun
as instructed on page 10.
4. Follow torque, sealant and lubrication
notes.
After adjusting or servicing the gun make
certain fluid does not flow or spray when
trigger lock is engaged. If fluid does flow or
spray, gun is not assembled properly or
trigger lock is damaged. Reassemble gun or
take to your nearest Graco distributor. Do not
use the gun until problem is corrected.
Valve Adjustment
Triggertravelandvalve openingisfactoryset
to 1 in. (25.4 mm). Use following procedure
to adjust setting,
1. Perform Pressure Relief Procedure,
page 4, and engage trigger lock.
2. Disconnect gun from hose.
3. Loosen stem nut (1) and spring housing
(28).
4. Insert a 1/8 hex allen wrench through
holeinspringadjustmentscrew(21)and
into spring housing (28).
5. Turn spring housing (28) and stem nut
(1) to change trigger travel and size of
valve opening.
6. Tighten stem nut (1) to set adjustment.
7. Adjust spring adjustment screw (21) to
desired trigger pull force.
Spring Tension
Adjustment
1. Perform Pressure Relief Procedure,
page 4, and engage trigger lock.
2. Disconnect gun from hose.
3. Turn spring adjustment screw (21) as
needed until spring force is adjusted to
close valve.
Before performing any repairs on the gun,
read all warnings in this manual and the
equipment manual.

Repair
309495G 9
NOTES:
M
E
O
A
F
A
KG
24
5
21
4
28
27
3
1
20
7
2
17
29
15
914 32
19
8
42
6
44
43
E H
a
b
F
F
F
13
F
35
F
F
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F
CN
A
Ref. Description
Torque to 6–10 in-lb (0.68–1.13 N•m)
Torque to 26–32 ft-lb (35.3–43.4 N•m)
Apply lithium base grease to threads
Apply lithium base grease
Whenremoving fluidhose,use wrenchon endoffluidtubeassembly (19)
hex to avoid loosening fluid tube assembly (19)
Torque to 100–125 in-lb (11.3–14.1 N•m)
Torque to 200–250 in-lb (22.6–28.2 N•m)
Apply low strength anaerobic sealant (blue)
Apply high strength anaerobic sealant (red)
Apply anti-seize lubricant to threads
A
C
E
F
G
H
K
M
N
O

Repair
10 309495G
Valve Stem and Seal
Replacement
Iffluidleakspastv-blockseal(3),v-blockseal
or valve stem (24) may be worn or damaged.
Use following procedure to replace v-block
seal or valve stem.
1. Perform Pressure Relief Procedure,
page 4, and engage trigger lock.
2. Disconnect gun from hose.
3. Unscrew spring retainer (21) and
remove spring (4).
4. Unscrew spring housing (28) with a 1/8
inch hex allen wrench.
5. Unscrew valve seat (35).
6. Remove adjustment bracket (20) and
stem nut (1) from stem.
7. Remove valve stem (24).
8. Remove seal retainer (27) and v-block
seal (3). Replace v-block seal.
9. Secure gun body (17) in an assembly
fixture.
10. Lubricateand installv-blockseal(3)into
gunbody(17) withlipsofsealfacinginto
housing.
11. Lubricate and torque seal retainer (27)
into gun body (17) to 100–125 in-lb
(11.3–14.1 N•m).
12. Lubricate and install valve stem threads
(24) into gun body (17). Thread stem
assembly through v-block seal (3).
13. Thread nut (1) all way onto valve stem
(24).
14. Install adjustment bracket (20) and
springhousing(28)ontovalvestem(24).
15. 15. Apply high strength anaerobic
sealant (red) to threads on valve seat
(35). Torque valve seat into gun body
(17) to 26–32 ft-lb (35.3–43.4 N•m).
16. Lubricateandinstallspring(4)andspring
retainer threads (21) in gun body (17).
17. Insert a 1/8 inch hex allen wrench
through spring retainer (21) and into
springhousing (28).Adjust triggertravel
and valve opening to desired position.
18. Tighten stem nut (1) to set adjustment.
19. Adjust spring adjustment screw (21) to
desired trigger pull force.
Gun Disassembly and
Assembly
Disassembly
1. Perform Pressure Relief Procedure,
page 4, and engage trigger lock.
2. See Valve Stem and Seal
Replacement and perform Steps 2 – 7.
3. Remove two retaining rings (8), rod (13)
and trigger (29).
4. Unscrew setscrew (42), then unscrew
fluid tube assembly (19) from gun body
(17).
5. Remove gun handle screws (9), gun
handle(14),triggerlock(15),ball(2)and
spring (7).
6. Remove seal retainer (27), seal (3) and
o-rings (5 and 6).
Assembly
1. See Valve Stem and Seal
Replacement andperformSteps 9–11.
2. Lubricate o-ring (6) and install into gun
body.
3. See Valve Stem and Seal
Replacement and perform Steps 12 –
14.
NOTICE
Installing valve stem (24) without
turning it clockwise could damage
v-block seal and result in fluid leakage.
NOTICE
To avoid loosening connections and
damaging gun, grip gun body (17), not
handle (14), when removing fluid tube
assembly (19).