Graco RAZOR 288588 Operation manual

Instructions - Parts List

RAZOR®Siphon

Feed Gun

II 2 G

TI8222A

312106F

ENG

A premier gun for the automotive refinish market for use with thin to medium viscosity

materials (14-20 seconds Zahn #2 cup). If spraying heavier materials, use a pressure or

gravity feed spray gun.

Includes HVLP, Compliant, and Conventional Series.

See page 2 for List of Models and maximum working pressures.

See page 10 for Parts.

This manual is available in the following languages.

Contents

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

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

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 12

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 12

Important Safety Instructions

Read all warnings and instructions in this

manual. Save these instructions.

English 312106

Spanish 312107

French 312108

German 312109

Italian 312110

Models

2312106F

Models

Needle Tips

Part

Number Series Spray Type

Max HVLP/

Comp

Pressure psi

(MPa, bar)

Nozzle

(mm) Application Air Cap Nozzle

Needle

Assy

Needle

Tip

Air Cap

with

Retaining

Ring

288588 A HVLP 30 (0.21, 2.1) 2.2 Clear, Base 253827 253778 253777 234779 289504

288589 A Compliant 35 (0.24, 2.4) 1.0 Clear, Base 288454 288301 288640 288751 289510

288590 A Compliant 35 (0.24, 2.4) 1.2 Clear, Base 288454 288302 288641 234778 289510

288591 A Compliant 35 (0.24, 2.4) 1.3 Clear, Base 288454 288303 288641 234778 289510

288592 A Compliant 35 (0.24, 2.4) 1.4 Clear, Base 288454 288304 288642 288752 289510

288593 A Compliant 35 (0.24, 2.4) 1.6 Clear, Base 288454 288305 288642 288752 289510

288594 A Compliant 35 (0.24, 2.4) 1.8 Primer 288454 288306 288643 253917 289510

288595 A Conventional N/A 1.5 Clear, Base 288455 288307 288642 288752 289511

288596 A Conventional N/A 1.8 Clear, Base 288455 288308 288642 288752 289511

288597 A Conventional N/A 2.0 Primer 288456 288309 253777 234779 289512

288598 A Conventional N/A 2.5 Primer 288457 288310 253777 234779 289513

Grooves Needle Tip

0 234779

3 288751

4 288752

6 234778

7 253917

Grooves

ti14043a

Warnings

312106F 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. Refer back to these warnings. Additional, product-

specific warnings may be found throughout the body of this manual where applicable.

WARNING

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as 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, portable electric

lamps, and plastic drop cloths (potential static arc).

• Keep work area free of debris, including solvent, rags and gasoline.

• Do not plug or unplug power cords or turn lights on or off when flammable fumes

are present.

• Ground all equipment in the work area. See Grounding instructions.

• If there is static sparking or you feel a shock, stop operation immediately. Do not

use equipment until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

PRESSURIZED EQUIPMENT HAZARD

Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the

eyes or on skin and cause serious injury.

• Follow Pressure Relief Procedure in this manual, when you stop spraying and

before cleaning, checking, or servicing equipment.

• Tighten all fluid connections before operating the equipment.

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

immediately.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not exceed the maximum working pressure or temperature rating of the lowest

rated system component. See Technical Data in all equipment manuals.

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

Technical Data in all equipment manuals. Read fluid and solvent manufacturer’s

warnings.

• Check equipment daily. Repair or replace worn or damaged parts immediately.

• Do not alter or modify equipment.

• Use equipment only for its intended purpose. Call your Graco distributor for

information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and

hot surfaces.

• Do not kink or overbend hoses or use hoses to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

Setup

4312106F

Setup

1. Shut off the air supply.

2. Connect a clean, dry, filtered air supply to

the air inlet fitting (25). See page 10.

3. If this is the first time using the equipment,

flush the gun. See page 5.

Operation

Pressure Relief Procedure

1. Turn off the gun air supply.

2. Trigger the gun to relieve pressure.

Spraying

1. Fill the cup with material. Do not fill past the

shoulder on cup.

2. Turn on the shop air to the gun and set

atomizing pressure with the gun fully

triggered.

3. Adjust the pattern size and shape with the

fluid adjust knob (8). Fluid adjust knob (8) is

factory set for maximum needle trigger

travel and material flow. Turn knob

clockwise to reduce pattern size/ fluid flow

and counterclockwise to increase it.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate 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, burns, and hearing loss. This equipment includes

but is not limited to:

• Protective eyewear

• Clothing and respirator as recommended by the fluid and solvent manufacturer

•Gloves

• Hearing protection

WARNING

• Check that your shop air provides

adequate air flow.

• Use a minimum 3/8 in. (10 mm) ID air

hose.

• Set shop air pressure regulator (not

supplied) according to paint manu-

facturer’s recommendation. See

maximum pressures and compliant

air pressures on page 2.

• Make sure no air restrictions, such as

low-volume cheater-valves, obstruct

the air flow. If an air adjusting valve is

desired, use a Graco Air Adjusting

Valve (288744 or 234387).

• Install a shutoff valve (not supplied)

downstream of the air regulator to

shut off gun air.

• Install an inline air filter (not supplied)

to clean and dry the gun air supply.

CAUTION

Excessive atomizing air pressure can

increase over-spray, reduce transfer

efficiency, and result in a poor quality finish.

Regulatory agencies in certain states

prohibit the operation of a spray gun above

10 psi (69 kPa, 0.7 bar) atomizing air cap

pressure.

See Troubleshooting, page 7, if you expe-

rience an irregular pattern.

Maintenance

312106F 5

Volatile Organic Compounds

(VOC) Regulation

In certain states, spraying solvents that release

VOCs into the atmosphere when cleaning

a spray gun is prohibited. To comply with these

air quality laws, you must use a cleaning

method that prevents the escape of VOC

vapors into the atmosphere. See Compliant

Cleaning Methods, page 5

Maintenance

• Frequently lubricate the gun moving

parts with a drop of non-silicone oil.

• Do not disassemble the spray gun if you

are having a spray pattern problem. See

Troubleshooting, page 7, for information

on how to correct the problem.

• Check for fluid leakage. Tighten fittings

or replace equipment as needed.

Flush

Flush before using the equipment, before

changing colors, and when you are done

spraying. Use solvent that is compatible with

gun wetted parts and fluid that will be sprayed.

1. Relieve pressure, page 4.

2. Dispose of any paint in the cup.

3. Fill the cup with a small amount of solvent.

4. Spray into a grounded metal waste

container until the equipment is clean.

5. Relieve pressure, page 4.

Cleaning Gun and Cup

1. Flush, page 5.

2. Use a rag moistened in solvent to wipe

outside of gun and cup.

3. Make sure cup lid vent hole is clear.

4. Blow dry gun inside and out. Lubricate, see

Maintenance, page 5.

Cleaning Nozzle and Air Cap

1. Remove air cap (13), trigger gun, remove

nozzle (11), and soak both in a compatible

cleaning solution.

2. Clean them and the front of the gun with

a soft-bristle brush dipped into compatible

solvent. Do not use a wire brush or metal

tools.

3. Use a soft implement, such as a toothpick

to clean out air cap holes.

Compliant Cleaning Methods

1. Place spray gun in a gun washer that com-

pletely encloses the gun and components

during cleaning, rinsing, and draining.

2. Spray solvent through the spray gun into

a closed gun cleaning station.

Clean air line filters as directed by the

manufacturer.

See Compliant Cleaning Methods, page 5,

to comply with air quality laws if applicable.

CAUTION

• Do not submerge gun in solvent. Solvent

dissolves lubricant, dries out packings,

and clogs air passages.

• Do not use metal tools to clean air cap

holes as this may scratch them and distort

the spray pattern.

• Use a compatible solvent.

See Compliant Cleaning Methods, page 5,

to comply with air quality laws if applicable.

Repair

6312106F

Repair

See Parts, page 10, for callout references.

Needle Replacement

1. Remove knob (8), spring (29), and needle

(9). Inspect. Replace tip (9a) or needle (9)

as necessary. See page 2.

2. Insert needle (9), spring (29), and knob (8).

Nozzle Replacement

1. Unscrew retaining ring (14) to remove air

cap assembly (13).

2. Trigger gun while unscrewing nozzle (11) to

prevent needle damage.

3. Check o-ring (21) and replace if necessary.

4. Trigger gun while replacing nozzle (11).

5. Insert air cap assembly (13) into gun.

6. Screw retaining ring (14) into place.

Air Control Valve Replacement

1. Remove air control valve assembly (5).

2. Insert replacement assembly (5) into gun.

Air Valve Replacement

1. Remove trigger nut (24), trigger pin (23),

wave washer (18), and trigger (10).

2. Remove knob (8), spring (29), needle (9)

and nut (7).

3. Remove spring (31) and push the air valve

assembly (6) out the back of the gun.

4. Inspect u-cup seals (22) and replace if

necessary.

5. Lubricate gun as described in Mainte-

nance, page 5.

6. Insert replacement air valve assembly (6).

Replace spring (31) and nut (7).

7. Replace trigger (10), wave washer (18),

trigger pin (23), trigger nut (24), needle (9),

spring (29), and knob (8).

Needle Packing Replacement

1. Remove trigger nut (24), trigger pin (23),

wave washer (18), and trigger (10).

2. Remove knob (8), spring (29), and needle (9).

3. Unscrew nut (17) and remove u-cup (16)

and spreader (15).

4. Insert replacement spreader (15) facing

back of gun, u-cup (16) facing front of gun,

and nut (17).

5. Replace trigger (10), wave washer (18),

trigger pin (23), trigger nut (24), needle (9),

spring (29), and knob (8).

Troubleshooting

312106F 7

Troubleshooting

Problem Cause Solution

Normal pattern. No action necessary.

Dirty or damaged air cap or fluid

nozzle. Rotate air cap 180°.

If pattern follows air cap, problem is in air

cap (13). Clean and inspect. If pattern is

not corrected, replace air cap.

If pattern does not follow the air cap, the

problem is with the fluid nozzle. Clean

and inspect the nozzle. If the pattern is

not corrected, replace nozzle.

Pressure too high for viscosity of

material being sprayed.

Reduce air pressure and increase

material viscosity.

Correct pattern by narrowing fan size with

spray width adjustment knob (8).

Dirty or distorted air horn holes. Clean and inspect air cap. If pattern is not

corrected, replace air cap.

Gun spitting Air getting into paint stream. Check if cup is empty and fill.

Tighten fluid nozzle (11).

Check and tighten needle packing nut (17).

Check fluid nozzle (11) for damage.

Will not spray Cup is empty. Fill cup.

Fluid adjustment knob (8) turned

too far clockwise.

Adjust knob (8) counterclockwise.

Excessive air

blowing back Loose fluid nozzle (11). Tighten fluid nozzle (11).

Damaged fluid nozzle seal (21). Replace seal (21).

Right

Wrong

Heavy top

or bottom

pattern

Wrong

Split pattern

Wrong

Technical Data

8312106F

Technical Data

*Produces 10 psi (0.07 MPa, 0.7 bar) spraying pressure at air cap.

** All readings were taken with the fan valve fully open (fan full size) at the assumed operator

position. Sound power was tested per ISO 9614-2.

Maximum Air Inlet Pressure . . . . . . . . . . . . . . . . . . . . . . 100 psi (0.7 MPa, 7 bar)

Maximum HVLP/Compliant Inbound Air Pressure

HVLP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 psi (0.21 MPa, 2.1 bar)

Compliant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 psi (0.24 MPa, 2.4 bar)

Air Consumption

HVLP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 CFM at 30 psi (0.21 MPa, 2.1 bar)

Compliant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4 CFM at 35 psi (0.24 MPa, 2.4 bar)

Conventional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.2 CFM at 43 psi (0.3 MPa, 3.0 bar)

Fluid and Air Operating Temperature Range. . . . . . . . . 32°F to 109°F (0°C to 43°C)

Spray Gun:

Air Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npsm (R1/4-19)

Fluid Inlet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/8 npsm (R3/8-19)

Weight with cup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 lbs (1.0 kg)

Sound Data:

HVLP sound pressure at 30 psi (0.21 MPa, 2.1 bar). . . . 81.8 dB(A)**

HVLP sound power at 30 psi (0.21 MPa, 2.1 bar). . . . . . 88.7 dB(A)**

Compliant sound pressure at 35 psi (0.24 MPa, 2.4 bar) 74.68 dB(A)**

Compliant sound power at 35 psi (0.24 MPa, 2.4 bar) . . 83.07 dB(A)**

Conventional sound pressure at 43 psi (0.3 MPa, 3.0 bar) 78.22 dB(A)**

Conventional sound power at 43 psi (0.3 MPa, 3.0 bar) . 86.68 dB(A)**

Siphon Cup Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 qt. (0.95 liter)

Wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 SST, 17-4 PH SST, PEEK, acetal,

UHMWPE

Accessories

312106F 9

Accessories

Repair Kits

Air Valves

Test Gauges

Part No. Description

253748 Needle Packing Repair Kit

253783 Gun Repair Kit

253784 Air Cap Seal Kit

253785 Trigger Repair Kit

253933 Air Inlet Fitting Repair Kit

253934 Air Valve Repair Kit

24C269 Fluid Inlet Fitting Kit

24C310 Nozzle O-Ring Kit, 5-Pack

Part No. Description

288744 High Volume Air Adjusting Valve with Gauge

234387 High Output Precision Air Valve

Part No. Description

253747 HVLP Verification

Parts

10 312106F

Parts

Pull trigger before installing nozzle (11).

Insert spreader (15) with tapered end facing rear of gun.

Insert u-cup (16) with open end facing front of gun.

Apply lubricant.

Apply low strength thread retainer.

Apply high strength thread retainer.

Torque to 85-90 in-lbs (9.6-10.2 N•m).

Torque to 15-20 in-lbs (1.7-2.2 N•m).

Torque to 175-185 in-lbs (19.8-20.9 N•m).

Torque to 155-165 in-lbs (17.5-18.6 N•m).

Install with valve assembly turned fully CCW to outermost

position.

Torque to 205-215 in-lbs (23.2-24.3 N•m).

‡8

‡29

7‡

*‡22

‡31

*‡6

*‡22

**24

23**

18**

21* 11

19*◆✓

13✓

*◆✓20

14✓

^25 10**

^30a

*†16

*†15

4 3 7

(sold separately)

TI8223b

311 5

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