Graco Inline HD 245820 Guide

309495L

Operation, Parts

Inline HD™

Texture Gun

For portable spraying of water-based materials. Can be used for application of

solvent-based materials only when solvent compatible seals are installed and solvent

compatible, conductive hoses are used. For professional use only.

Not approved for use in European explosive atmosphere locations.

Model: 245820 (Series C)

4000 psi (28 MPa, 280 bar) Maximum Working Pressure

Ball and valve needle – abrasive material compatible

Model: 17Y907

1000 psi (6.9 MPa, 69 bar) Maximum Working Pressure

Important Safety Instructions

Read all warnings and instructions in this manual and the sprayer manual before using the

equipment. 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

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Related Manuals:

3A6748 Operation, Repair, Parts

Warnings

2309495L

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 symbols

refer to procedure-specific risks. When these symbols appear in the body of this manual or on

warning labels, refer back to these Warnings. Product-specific hazard symbols 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 bodily injury.

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 spray tip guard. Do not spray without spray tip guard in place.

•Use Graco spray tips.

•Use caution when cleaning and changing spray tips. In the case where the spray tip

clogs while spraying, follow the Pressure Relief Procedure for turning off the unit

and relieving the pressure before removing the spray 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.

•Know how to stop the unit and bleed pressure quickly. Be thoroughly familiar with the

controls.

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode.

Paint or solvent flowing through the equipment can cause static sparking. 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 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.

•Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners

unless they are anti-static or conductive.

•Stop operation immediately if static sparking occurs or you feel a shock.Do not use

equipment until you identify and correct the problem.

•Keep a working fire extinguisher in the work area.

Warnings

309495L 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.

•Do not overreach or stand on an unstable support. Keep effective footing and balance

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

serious chemical reaction and equipment rupture. Failure to follow this warning can result

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, protective clothing, and gloves as recommended by the fluid and solvent

manufacturer.

Operation

4309495L

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,

such as skin injection or splashed fluid, follow

the Pressure Relief Procedure whenever

sprayer is stopped and before sprayer is

cleaned or checked, and before equipment is

serviced.

ti29239a

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.

ti29240a

Operation

309495L 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

To prevent spray tip leaks make certain spray

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.

If equipment has recently been operated,

perform Pressure Relief Procedure,

page 4, and engage trigger lock. To avoid

serious injury from skin injection, do not

place your hand in front of the spray tip

when installing or removing the spray tip.

High-pressure spray is able to inject toxins

into the body and cause serious bodily

injury. Do not stop leaks with hand or rag.

ti29241a

SPRAY TIP

RUBBER

GASKET/METAL

SEAL

RETAINING

NUT

TIP GUARD

ti29242a

Operation

6309495L

b. Spray tip must be pushed all the

way into the tip guard. Turn spray tip

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.

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

sprayer instruction manual for additional

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.

ti29243a

ti29244a

Vent

ti29245a

HORIZONTAL VERTICAL

ti29246a

Operation

309495L 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

clears the particles without disassembling the

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.

To avoid serious injury from skin injection

do not put your hand in front of the spray tip

when installing or removing the spray tip

and tip guard.

ti29247a

ti29248a

Repair

8309495L

Repair

1. Perform Pressure Relief Procedure,

page 4, and engage trigger lock.

2. When removing gun from hose, hold hex

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. Replace valve seal, stem, or seat as

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

Trigger travel and valve opening is factory set

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

hole in spring adjustment screw (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

309495L 9

NOTES:

914 32

E H

ti13869b

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

When removing fluid hose, use wrench on end of fluid tube assembly (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

Repair

10 309495L

Valve Stem and Seal

Replacement

If fluid leaks past v-block seal (3), v-block seal

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. Lubricate and install v-block seal (3) into

gun body (17) with lips of seal facing into

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

spring housing (28) onto valve stem (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. Lubricate and install spring (4) and spring

retainer threads (21) in gun body (17).

17. Insert a 1/8 inch hex allen wrench

through spring retainer (21) and into

spring housing (28). Adjust trigger travel

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), trigger lock (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 and perform Steps 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).

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