Graco Hydra-Clean 208008 User manual

Instructions – Parts List

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

STAINLESS STEEL

Hydra–CleanrSpray Gun

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

Model 208008, Series D

Spray tip not included, purchase separately. See page 12 for Tip Selection Chart.

307010L

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

See page 2 for Table of Contents.

8106

2 307010

Table of Contents

Setup 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tip Selection Chart 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 14. . . . . . . . . . . . . . . . . . . . . .

Graco Information 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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.

WARNING

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 1000 psi (6.9 MPa, 69 bar) maximum fluid working pressure.

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).

DDo not use the hoses to pull the equipment.

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.

DUse fluids or solvents that are compatible with the equipment wetted parts. See the Technical

Data section of all the equipment manuals. Read the fluid and solvent manufacturer’s warnings.

DComply with all applicable local, state and national fire, electrical and other safety regulations.

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,

inhaled, or swallowed.

DKnow the specific hazards of the fluid you are using.

DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,

state and national guidelines.

DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and

solvent manufacturer.

307010 3

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 Grounding on page 4.

DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being

sprayed.

DExtinguish all the open flames or pilot lights in the spray area.

DElectrically disconnect all the equipment in the spray area.

DKeep the spray area free of debris, including solvent, rags, and gasoline.

DDo not turn on or off any light switch in the spray area while operating or if fumes are present.

DDo not smoke in the spray area.

DDo not operate a gasoline engine in the spray area.

DIf there is any static sparking while using the equipment, stop spraying immediately. Identify and

correct the problem.

SKIN 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 a serious injury.

DFluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgi-

cal treatment.

DDo not point the spray gun at anyone or at 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.

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 4 whenever you: are instructed to relieve pres-

sure; stop spraying; clean, check, or service the equipment; and install or clean the spray tip.

DTighten all the 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.

4 307010

Setup

Pressure Relief Procedure

WARNING

PRESSURIZED EQUIPMENT HAZARD

The system pressure must be manually

relieved to prevent the system from

starting or spraying accidentally. To

reduce the risk of an injury from accidental spray

from the gun, 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 nozzle.

1. Lock the gun trigger safety.

2. Shut off the power supply to the pump and close

any bleed-type master air valves in the air supply.

3. Unlock the gun trigger safety.

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

grounded metal pail, and trigger the gun into the

pail to relieve pressure.

5. Lock the gun trigger safety.

6. Open the pump fluid drain valve (required in the

system), having a container ready to catch the

drainage.

7. Leave the drain valve open until you are ready to

spray again.

If you suspect that the spray tip or hose is completely

clogged, or that pressure has not been fully relieved

after following the steps above, very slowly loosen the

tip guard retaining nut or hose end coupling to relieve

pressure gradually, then loosen completely. Now clear

the tip or hose.

Grounding

WARNING

FIRE AND EXPLOSION HAZARD

Proper electrical grounding is essential

to reduce the risk of fire or explosion

which can result in serious injury and

property damage. Also read FIRE OR

EXPLOSION HAZARD on page 3.

1. Pump or Sprayer: as instructed in your separate

pump or sprayer manual.

2. Air compressor or hydraulic power supply: accord-

ing to local code.

3. Fluid hoses: use only grounded hoses with a

maximum of 500 feet (150 m) combined hose

length to ensure grounding continuity.

4. Spray gun: obtain grounding through connection to

a properly grounded fluid hose and sprayer or

pump.

5. Fluid supply container: according to local code.

6. Object being sprayed: according to local code.

7. All solvent pails used when flushing, according to

local code. Use only metal pails, which are con-

ductive. Do not place the pail on a non-conductive

surface, such as paper or cardboard, which inter-

rupts the grounding continuity.

8. To maintain grounding continuity when flushing or

relieving pressure, always hold a metal part of the

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

the gun.

307010 5

Installation

WARNING

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the Pressure Relief

Procedure on page 4.

SKIN INJECTION HAZARD

NOTE: Numbers and letters in parentheses in the text

correspond to the reference numbers and letters in the

text and drawings.

WARNING

Be sure your system has a bleed-type

master air valve (pneumatic pumps

only) and a fluid drain valve. These two

accessories help reduce the risk of serious injury,

including fluid injection, splashing in the eyes, or

on the skin, or injury from moving parts, if you are

adjusting or repairing the pump or gun.

1. The bleed-type master air valve relieves air

trapped between this valve and the 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

pressure in the displacement pump, hose,

and gun; triggering the gun to relieve pressure

may not be sufficient.

SKIN INJECTION HAZARD

1. Connect a grounded fluid hose to the gun inlet.

2. With no tip installed, start the pump/sprayer. Flush

it according to the instructions supplied with it.

Prime the system with the fluid you are using.

3. Relieve the pressure.

Fig. 1 8105

4. WIth the gun safety latch engaged, unscrew the tip

guard (9) and install the tip (A) and gasket (B) in

the nut of the tip guard. Screw the assembly firmly

onto the gun. TIghten with a wrench. See Fig. 1.

NOTE: Failure to install the tip gasket (B) will result in

leaking.

5. Strain the fluid you are spraying if it contains

particles which could clog the spray tip.

6 307010

Operation

WARNING

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the Pressure Relief

Procedure on page 4.

Whenever you stop spraying for a moment, en-

gage the gun safety latch. See Fig. 2.

SKIN INJECTION HAZARD

WARNING

The wallet-sized warning card provided with this

gun should be kept with the operator at all times.

The card contains important treatment informa-

tion should an injection injury occur. Additional

cards are available at no charge from Graco Inc.

1. Start the pump. Adjust the fluid pressure so the

spray is completely atomized. Always 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.

2. If adjusting the pressure does not give a good

spray pattern, try another tip size. Be sure to relive

pressure completely before changing tips.

3. 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. Do not swing the gun in an

arc. Practice to find the best length and speed of

stroke.

Fig. 2

8122

Safety Off

Safety On

307010 7

Operation

WARNING

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the Pressure Relief

Procedure on page 4.

SKIN INJECTION HAZARD

Adjust the Spray Pattern

1. To adjust the spray pattern, relieve the pressure.

Engage the safety latch and loosen the tip guard

retaining nut. Turn the spray tip so the groove is

horizontal for a horizontal spray pattern, and

vertical for a vertical pattern. Tighten the nut.

2. The spray tip orifice size and spray angle deter-

mines the coverage and size of pattern. When

more coverage is needed, use a larger spray tip

rather than increasing fluid pressure.

WARNING

To reduce the risk of a fluid injection

injury, never use the gun with the tip

guard or trigger guard removed.

SKIN INJECTION HAZARD

CAUTION

Openings in the tip guard are designed to reduce

paint buildup on the guard while spraying. Any

damage to the sharp edges of the openings causes

paint to collect at that area. To reduce the risk of

damage, never hang the gun by the tip guard.

Cleaning and Clearing the Spray Tip

Clean off the front of the tip frequently during the day’s

operation and at the end of the work day. Always

relieve the pressure and use a solvent soaked brush

to clean the spray tip and to keep fluid buildup from

drying and clogging the spray tip.

If the spray tip clogs while spraying, release the spray

gun trigger, engage the trigger safety, shut off the

pump, and relieve the pressure. Then, remove the air

spray tip and blow out the obstruction with air from the

front of the spray tip, or let the spray tip and gun

nozzle soak long enough to dissolve the obstruction. If

the obstruction will not dissolve, jar it out by tapping

the back of the spray gun against a flat surface.

CAUTION

Never soak the entire gun in solvent. Prolonged

exposure to solvent can ruin the packings.

Flushing the Gun

WARNING

Before flushing, be sure the entire sys-

tem and flushing pails are properly

grounded. Refer to Grounding on page

4. Relieve the pressure and remove the spray

tip from the gun. Always use the lowest possible

fluid pressure, and maintain firm metal-to-metal

contact between the gun and the pail during flush-

ing to reduce the risk of a fluid injection injury,

static sparking, and splashing.

SKIN INJECTION HAZARD

Relieve the pressure, remove the spray tip, and then

flush the gun and spray system with a compatible

solvent. Always flush the gun before the fluid being

sprayed can dry in it.

8 307010

Troubleshooting

If the gun leaks at the swivel (21), see Swivel

Repair, below.

If the gun leaks at the nozzle, try adjusting the

trigger free play. See Needle Adjustment on page 9.

If the leakage is not stopped, the needle (10) or valve

seat (8) may need to be replaced. See Gun Repair on

page 10.

If the gun leaks at the packing nut (14), check the

tightness of the packing nut. Remove the tip guard or

nozzle extension. Insert a 0.125 in. (3.18 mm) diame-

ter rod into the needle tip and tighten just enough to

stop leakage. See Fig. 3. If leakage is not stopped, the

packings or needle may need to be replaced. See Gun

Repair, page 10.

Fig. 3

8125

Safety Off

307010 9

Service

WARNING

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the Pressure Relief

Procedure on page 4.

SKIN INJECTION HAZARD

Swivel Repair

1. Relieve the pressure.

2. Unscrew the swivel stud (21) from the gun. Re-

move the spring (22), glands (24†, 25†), and

packings (23†) from the swivel housing (26). See

Fig. 4.

3. Clean all parts and inspect. The ball bearing in the

swivel stud should rotate freely. Replace any worn

or damaged parts.

NOTE: Repair kit 207308 is available for the swivel.

Use all the parts in the kit for the best results.

4. Install the spring (22), male gland (24†) and five

v-packings (23†) one at a time, make sure the lips

of the v-packings face into the housing. Install the

female gland (25†) and the swivel stud.

Needle Adjustment

WARNING

Proper adjustment of the needle is essential to

be sure the trigger safety latch makes the gun

inoperative when engaged. Improper adjustment

may allow the gun to be triggered, even with the

trigger safety latch engaged, resulting in serious

injury, including fluid injection and splashing in

the eyes or on the skin.

1. Relieve the pressure. Disconnect the hose.

2. With the trigger safety latch (29) engaged,

squeeze the trigger. There should be about 0.125

in. (3.18 mm) free play at the end of the trigger.

See Fig. 6 on page 10.

3. To adjust, remove the tip guard or nozzle exten-

sion. Release the safety latch. Squeeze the

trigger and loosen the locknut (4). Insert the

wrench (3) into the tip of the needle (10) and turn it

in or out until the proper free play is obtained.

Tighten the locknut (4).

4. Install the tip guard. Start the system. Trigger the

gun and release; fluid flow should stop immediate-

ly. Now engage the trigger safety latch. Try to

trigger the gun; no fluid should flow. If the gun

fails either test, relieve the pressure and re-

adjust the needle.

Fig. 4

8124

24†

23†

25†

Fig. 5 8102

10 307010

Service

WARNING

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the Pressure Relief

Procedure on page 4.

SKIN INJECTION HAZARD

Gun Repair (See Fig. 6)

NOTE: Repair kit 208328 is available for the needle

packings. Use all the parts in the kit for the best re-

sults.

1. Relieve the pressure. Disconnect the hose.

Remove the tip guard (9) or nozzle extension.

2. Unscrew the seat housing (18) and valve seat (8*)

from the gun body.

3. Using the wrench (3), loosen the packing nut (14).

Then use the wrench (3) to unscrew the needle

(10) from the adjusting nut.

4. Pull back the trigger (27) and remove the packing

nut (14) and two glands (11*, 13*), four packings

(12*) and locknut (4).

5. Clean and inspect all parts. Replace worn or

damaged parts as needed. If using a repair kit, use

all the parts in the kit during reassembly.

6. Lubricate the needle and slide it into the front of

the gun body (2).

7. Lubricate the new packings and glands. One at a

time, place these parts on the needle; the male

gland (11*), four v-packings (12*) with the lips of

the v-packings facing the front of the gun, and the

female gland (13*).

8. Screw the packing nut (14) into the center of the

gun body. Screw the locknut (4) onto the needle.

9. Be sure the spring (16) is in the gun body at the

rear of the center opening. Then, install the adjust-

ing nut (7). Using the wrench (3), insert through

the front of the gun, screw the needle (10) into the

adjusting nut until its end is flush with the valve

body.

10. Press the new valve seat (8*) into the body. Screw

on the seat housing.

11. Adjust the needle before operating the gun. See

Needle Adjustment on page 9.

12. Be sure the tip guard and trigger guard are

installed before using the gun.

Fig. 6

8104

8123

*11

*12

13*

Safety On

1.25in. (3.18 mm)

Free Travel

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