Graco XHF A Series Bedienungsanleitung

3A2799D

Instructions

XHF™Spray Gun

For spraying viscous materials at high flow rates. For professional use only.

262854, Series A

Includes an XHD™RAC®Guard and XHD429 SwitchTip™

7250 psi (50 MPa, 500 bar) Maximum Working Pressure

26C793, Series A

Includes an XHD™RAC®Guard and XHD429 SwitchTip™

7250 psi (50 MPa, 500 bar) Maximum Working Pressure

Important Safety Instructions

Read all warnings and instructions in this

manual before using the equipment. Save

these instructions.

Important Medical Information

Read the medical alert card provided with

the gun. It contains injection injury

treatment information for a doctor. Keep it

with you when operating the equipment.

WLD

ti19264a

26C793

262854

II 2 G Ex h IIB T6 Gb

2 3A2799D

Contents

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Component Identification . . . . . . . . . . . . . . . . . . . . 5

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

System Requirements . . . . . . . . . . . . . . . . . . . . . 6

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Pressure Relief Procedure. . . . . . . . . . . . . . . . . . 7

Gun Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . 7

Tip Guard Installation and Removal. . . . . . . . . . . 8

Spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Adjust the Spray Pattern . . . . . . . . . . . . . . . . . . . 8

Gun Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Disassemble the Gun . . . . . . . . . . . . . . . . . . . . . 11

Reassemble the Gun . . . . . . . . . . . . . . . . . . . . . 12

Test the Gun After Service . . . . . . . . . . . . . . . . . 13

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

262854 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

26C793 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Technical Specifications . . . . . . . . . . . . . . . . . . . . 17

California Proposition 65 . . . . . . . . . . . . . . . . . . . . 17

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 18

Graco Information. . . . . . . . . . . . . . . . . . . . . . . . . . 18

Warnings

3A2799D 3

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.

WARNING

SKIN 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 surgical treatment.

• Do not spray without tip guard and trigger guard installed.

• Engage trigger lock when not spraying.

• Do not point gun at anyone or at any part of the body.

• Do not put your hand over the spray tip.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

• Follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or

servicing equipment.

• Tighten all fluid connections before operating the equipment.

• Check hoses and couplings daily. Replace worn or damaged parts immediately.

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

4 3A2799D

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 Specifications in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical

Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For

complete information about your material, request Safety Data Sheets (SDSs) from distributor or

retailer.

• Do not leave the work area while equipment is energized or under pressure.

• Turn off all equipment and follow the Pressure Relief Procedure 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. 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.

• 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.

RECOIL HAZARD

Gun may recoil when triggered. If you are not standing securely, you could fall and be seriously injured.

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 Safety Data Sheets (SDSs) 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

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. 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.

WARNING

Component Identification

3A2799D 5

Component Identification

WLD

(

01:

)

Key

A Gun Body

B Valve Seat

C Gasket

D Needle

E Seal Retainer

F Seal

G SwitchTip

H Tip Guard

K Hex Screw

L Set screw

M Spring Guide

N Socket Head Set screw

P Spring

Q Adjusting Screw

R Fluid Housing

S Pivot Pin

T Gun Trigger

U E-Clip

V Swivel

W Trigger Pin

Z Fluid Hose

ZA Trigger Lock

Key

Setup

6 3A2799D

Setup

System Requirements

Pressure drain valves are recommended in the system.

Pressure drain valves assist in relieving fluid pressure in

the displacement pump, hose and gun in the event that

the gun is clogged and triggering the gun does not

relieve all pressure.

Grounding

Check your local electrical code and pump or sprayer

manual for detailed grounding instructions.

Spray gun: ground through connection to a properly

grounded fluid hose and pump.

Pump: follow manufacturer’s recommendations.

Fluid hose: use only electrically conductive hoses with

a maximum of 500 ft. (150 m) combined hose length to

ensure grounding continuity. Check electrical resistance

of hoses. If total resistance to ground exceeds 29

megohms, replace hose immediately.

Fluid supply container: follow local code.

Object being sprayed: follow local code.

Solvent pails used when flushing: follow local code.

Use only conductive metal pails, placed on a grounded

surface. Do not place the pail on a nonconductive

surface, such as paper or cardboard, which interrupts

grounding continuity.

To maintain grounding continuity when flushing or

relieving pressure: hold metal part of the spray gun

firmly to the side of a grounded metal pail, then trigger

the gun.

The equipment must be grounded to reduce the risk

of static sparking. Static sparking can cause fumes to

ignite or explode. Grounding provides an escape wire

for the electric current.

Operation

3A2799D 7

Operation

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever

you see this symbol.

1. Engage the gun trigger lock.

2. Shut off power to the pump.

3. Disengage the gun trigger lock.

4. Hold a metal part of the gun firmly to a grounded

metal pail. Trigger the gun to relieve pressure.

5. Engage the gun trigger lock.

6. Open the system drain valve, having a container

ready to catch the drainage. Observe the pressure

gauge. The gauge reads 0 psi/bar when fully

drained. Close the system drain valve.

7. If you suspect that the spray tip or hose is

completely clogged or that pressure has not been

fully relieved after following the previous steps, very

slowly loosen the tip guard retaining nut or hose end

coupling to relieve pressure gradually. Clean the tip

or hose obstruction.

Gun Trigger Lock

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. A wallet-sized medical alert card

with important injection treatment information is

included with the gun. Additional cards are available at

no charge. Provide a card to all operators.

Trigger Locked Trigger unlocked

ti19265a

(no spray) (spray)

1. To engage the gun trigger lock, rotate the lock so it

is perpendicular to the gun body. See FIG. 1.

2. To disengage the gun trigger lock, push the lock out

and rotate it so it is parallel with the gun body. See

FIG. 1.

This equipment stays pressurized until pressure is

manually relieved. To help prevent serious injury from

pressurized fluid, such as skin injection, and

splashing fluid, follow the Pressure Relief Procedure

when you stop spraying and before cleaning,

checking, or servicing the equipment.

The trigger lock must move freely, and easily snap

into the locked position. If the trigger lock is damaged

or movement is restricted, replace with new trigger kit

immediately.

FIG. 1: Trigger Lock Positions

Operation

8 3A2799D

Tip Guard Installation and

Removal

Spray

ti19266a

• Do not pull hose with gun. Always pull hose with a

separate hand.

• Periodically verify that the set screw in the fluid

housing remains tight.

1. Connect a fluid hose (Z) to the gun inlet. Use swivel

17G980 or 17G981 if desired (order separately).

2. With SwitchTip (G) and tip guard (H) removed, start

the pump. Flush the pump according to the

instructions supplied with it. Use the lowest

pressure possible.

3. Prime the system with the material.

4. Follow the Pressure Relief Procedure, page 7.

5. Install the SwitchTip (G) and tip guard (H). See Tip

Guard Installation and Removal.

6. Start the pump. Trigger the gun onto test paper.

Adjust the fluid pressure until the spray is

completely atomized.

NOTE: Use the lowest pressure necessary to get the

desired results. Higher pressure may not improve the

spray pattern and will cause premature tip and pump

wear.

7. If adjusting the pressure does not give a good spray

pattern, relieve pressure and try another tip size.

8. When spraying, use a full-open, full-close trigger

action to get uniform coverage of applied media.

Hold the gun about 14 in. (350 mm) from and at

right angles to the work surface. Do not swing the

gun in an arc. Practice to find the best length and

speed of stroke.

Adjust the Spray Pattern

ti19267a

Vertical Spray Pattern Horizontal Spray Pattern

1. Follow the Pressure Relief Procedure, page 7.

2. Loosen the tip guard retaining nut (RN).

3. Rotate the tip guard (H) as necessary to achieve a

vertical or horizontal spray pattern. Tighten the nut

(RN).

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.

NO YES

NOTICE

Pulling hoses with the gun can cause the fluid housing

to loosen. This could result in the gun not shutting off

when the trigger is released.

Operation

3A2799D 9

4. 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.

Gun Care

• Do not try to “blow back” material; this is not an air

spray gun.

• Do not wipe fluid buildup off the gun or spray tip

until pressure is relieved.

Clean the Gun

1. Follow the Pressure Relief Procedure, page 7.

2. Use a solvent-soaked brush to clean the spray tip.

Clean the front of the tip frequently during the day to

help reduce buildup.

3. Clean the tip and tip guard at the end of each work

day.

Clean the Spray Tip / Clear Clogs

Spraying position shown. Rotate tip handle 180°

and trigger gun to clear clog.

ti19268a

NOTICE

1. Engage the gun trigger lock.

2. Rotate the RAC SwitchTip handle 180° (see FIG. 2).

3. Disengage the gun trigger lock.

4. Trigger the gun into a pail or onto the ground to

remove the clog.

5. Engage the gun trigger lock.

6. Rotate the tip handle back to the spraying position.

7. Disengage the gun trigger lock and continue

spraying.

8. If the tip is still clogged:

a. Engage the gun trigger lock.

b. Follow the Pressure Relief Procedure, page 7.

c. Remove the RAC SwitchTip and clean. See Tip

Guard Installation and Removal, page 8.

NOTICE

Openings in the tip guard reduce material buildup on

the guard while spraying. Damage to the sharp edges

of the openings causes material to collect in the

damaged area. To prevent this, never hang the gun

by the tip guard.

To reduce the risk of fluid injection or splashing in the

eyes or on the skin, do not point gun at anyone or at

any part of the body 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.

FIG. 2: Rotate RAC tip handle for cleaning

Never soak the entire gun in solvent. Prolonged

exposure to solvent can damage the packings.

Operation

10 3A2799D

Flushing

• Be sure the entire system, including flushing pails,

is properly grounded.

• Remove the tip guard and SwitchTip.

• Maintain metal to metal contact between the gun

and the flushing pail.

• Use the lowest possible pressure.

ti19269a

NOTICE

NOTE: This procedure requires a grounded pail of

compatible flushing fluid.

1. Follow the Pressure Relief Procedure, page 7.

2. Remove the tip guard (H) and SwitchTip (G). Soak

and clean the parts.

3. Single component systems only: Remove the

pump intake from the original pail. Put the pump

intake in a grounded pail of compatible solvent.

4. Start the pump at its lowest pressure.

5. Single component systems only: Trigger the gun

into the original pail. When flushing fluid appears,

release the trigger.

Two-component systems only: Trigger the gun

into a waste container. When flushing fluid appears

release the trigger.

6. Trigger the gun into the flushing fluid supply pail.

Circulate the fluid until the system is thoroughly

flushed.

7. After gun is thoroughly flushed, follow the Pressure

Relief Procedure, page 7.

To reduce the risk of serious injury, including

splashing fluid in the eyes or on the skin, or static

electric discharge when flushing:

Always flush the pump and gun before the sprayed

fluid cures.

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