Graco Sharpe RAZOR LVLP Series Operation manual

Instructions–Parts
RAZOR®Gravity Feed Gun
A premier gun for the automotive refinish market
Includes LVLP, HVLP,Compliant, and Conventional Series.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
II 2 G
ti8206
311684P

Models
Models / Modèles / Modelos
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
* LVLP 16 (0.1, 1.1) 1.2 Clear, Base 253823 253802 253771 288752 289500
253427 A LVLP 16 (0.1, 1.1) 1.3 Clear, Base 253823 253803 253771 288752 289500
253428 A LVLP 16 (0.1, 1.1) 1.4 Clear, Base 253823 253804 253772 253917 289500
253429 A LVLP 16 (0.1, 1.1) 1.5 Clear, Base 253823 253805 253772 253917 289500
* LVLP 16 (0.1, 1.1) 1.6 Clear, Base 253823 253806 253772 253917 289500
* HVLP 29 (0.2, 2.0) 1.0 Clear, Base 253824 253792 253769 288751 289501
253432 A HVLP 29 (0.2, 2.0) 1.2 Clear, Base 253824 253793 253771 288752 289501
253433 A HVLP 29 (0.2, 2.0) 1.3 Clear, Base 253824 253794 253771 288752 289501
253434 A HVLP 29 (0.2, 2.0) 1.4 Clear, Base 253824 253795 253772 253917 289501
253435 A HVLP 29 (0.2, 2.0) 1.5 Clear, Base 253824 253796 253772 253917 289501
* HVLP 29 (0.2, 2.0) 1.7 Clear, Base 253824 253797 253772 253917 289501
289839 A HVLP 29 (0.2, 2.0) 1.3 Primer 253828 289841 253771 288752 289505
253437 A HVLP 29 (0.2, 2.0) 1.5 Primer 253828 253789 253772 253917 289505
253438 A HVLP 29 (0.2, 2.0) 1.8 Primer 253828 253790 253772 253917 289505
253439 A HVLP 29 (0.2, 2.0) 2.3 Primer 253829 253791 253774 234779 289506
* HVLP 29 (0.2, 2.0) 2.5 Primer 253829 24B235 253775 234780 289506
24B233 A HVLP 29 (0.2, 2.0) 2.5 Sprayable
Polyester
253829 24B235 253774 234780 289506
* Compliant 35 (0.24, 2.4) 1.0 Clear, Base,
Primer
253825 253816 253769 288751 289502
253441 A Compliant 35 (0.24, 2.4) 1.2 Clear, Base,
Primer
253825 253817 253771 288752 289502
253442 A Compliant 35 (0.24, 2.4) 1.3 Clear, Base,
Primer
253825 253818 253771 288752 289502
253443 A Compliant 35 (0.24, 2.4) 1.4 Clear, Base,
Primer
253825 253819 253771 288752 289502
288654 A Compliant 35 (0.24, 2.4) 1.5 Clear, Base,
Primer
253825 288653 253772 253917 289502
253444 A Compliant 35 (0.24, 2.4) 1.6 Clear, Base,
Primer
253825 253820 253772 253917 289502
* Compliant 35 (0.24, 2.4) 2.0 Clear, Base,
Primer
253826 253821 253774 234779 289503
* Compliant 35 (0.24, 2.4) 2.5 Clear, Base,
Primer
253826 253822 253775 234780 289503
* Conventional N/A 1.2 Clear, Base 288451 288295 253772 253917 289507
* Conventional N/A 1.3 Clear, Base 288451 288296 253772 253917 289507
288281 A Conventional N/A 1.4 Clear, Base 288451 288297 253771 288752 289507
* Conventional N/A 1.6 Clear, Base 288451 288298 253772 253917 289507
* Conventional N/A 1.8 Primer 288452 288299 253772 253917 289508
* A Conventional N/A 2.5 Primer 288453 288300 253775 234780 289509

Models
* Gun not available. Table shows kits/parts available.
Needle tips
289214 A HVLP 29 (0.2, 2.0) 1.3 Metallic 289212 253794 253771 288752 289514
289215 A HVLP 29 (0.2, 2.0) 1.4 Metallic 289212 253795 253772 253917 289514
289216 A HVLP 29 (0.2, 2.0) 1.5 Metallic 289212 253796 253772 253917 289514
289388 A HVLP 26 (0.18, 1.8) 1.2 Waterborne 289374 289380 253771 288752 289599
289389 A HVLP 26 (0.18, 1.8) 1.3 Waterborne 289375 289381 253771 288752 289600
289571 A HVLP 26 (0.18, 1.8) 1.4 Waterborne 289375 289561 253771 288752 289600
289390 A Compliant 35 (0.24, 2.4) 1.2 Waterborne 289376 289382 253771 288752 289601
289391 A Compliant 35 (0.24, 2.4) 1.3 Waterborne 289377 289383 253771 288752 289602
289572 A Compliant 35 (0.24, 2.4) 1.4 Waterborne 289377 289562 253771 288752 289602
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
Grooves Needle Tip
0 234779 or 234780
3 288751
4 288752
7 253917
Grooves

Warnings
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
Setup
1. Shut off the air supply.
2. Connect a clean, dry, filtered air supply to
the air inlet fitting (25). See page 26.
3. Every Razor gun is spray tested with blue
paint to ensure quality prior to shipment. If
this is the first time using the equipment,
flush the gun. See page 6.
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
full markings 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 SHARPE Air Adjusting
Valve (part nos. 2210, 3310, U04410)
or Digi-tell (part no. U05510).
• 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 9, if you
experience an irregular pattern.

Maintenance
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 7.
Maintenance
• Frequently lubricate the gun moving
parts with a drop of non-silicone oil
(part no. 8255).
• Do not disassemble the spray gun if you
are having a spray pattern problem. See
Troubleshooting, page 9, 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 5.
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 5.
Cleaning Gun and Cup
1. Flush, page 6.
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 6.
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.
Clean air line filters as directed by the
manufacturer.
See Compliant Cleaning Methods, page 7,
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 7,
to comply with air quality laws if applicable.
Maintenance Kit 8260 is available. Kit
includes cleaning brushes and pen oiler.
When reassembling, make sure the
air cap matches the color etched onto
the side of the nozzle (gold, brown, grey,
blue, etc.).

Repair
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.
Repair
See Parts, page 26, 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 6.
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).

Repair
Fluid Inlet Fitting Replacement
1. Remove fluid inlet fitting (4).
2. Remove fluid inlet gasket (3) from gun body
and discard.
3. Apply thread sealant to replacement fluid
inlet fitting (4) threads.
4. Snap the fluid inlet gasket (3) securely onto
the fluid inlet fitting (4).
5. Screw in fluid inlet fitting (4) and torque to
155-165 in.-lb (17.5-18.6 N•m).
6. Replace washer (28) as required.
PRESSURIZED EQUIPMENT HAZARD
• Fluid inlet gasket (3) must be replaced if
fluid inlet fitting (4) is removed from spray
gun.
• Failure to replace gasket (3) may result in
air leakage into the fluid section causing a
non-vented gravity cup to become
pressurized.

Troubleshooting
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 mate-
rial 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.
Replace fluid inlet gasket (3).
Damaged fluid nozzle seal (21). Replace seal (21).
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

Troubleshooting
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:
LVLP gravity feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 psi (0.1MPa, 1.1 bar)*
HVLP gravity feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 psi (0.2 MPa, 2.0 bar)*
Compliant gravity feed. . . . . . . . . . . . . . . . . . . . . . . . . . . 35 psi (0.24 MPa, 2.4 bar)*
Air Consumption:
LVLP Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8 CFM at 16 psi (0.1 MPa, 1.1 bar)
HVLP Gun. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4 CFM at 29 psi (0.2 MPa, 2.0 bar)
Compliant Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 CFM at 35 psi (0.24 MPa, 2.4 bar)
Conventional Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.3 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)
Weight with cup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 lbs (0.6 kg)
Sound Data:
LVLP sound pressure
at 16 psi (0.1 MPa, 1.1 bar). . . . . . . . . . . . . . . . . . . . . . . 80.8 dB(A)**
LVLP sound power
at 16 psi (0.1 MPa, 1.1 bar). . . . . . . . . . . . . . . . . . . . . . . 87.6 dB(A)**
HVLP sound pressure
at 29 psi (0.2 MPa, 2.0 bar). . . . . . . . . . . . . . . . . . . . . . . 83.9 dB(A)**
HVLP sound power
at 29 psi (0.2 MPa, 2.0 bar). . . . . . . . . . . . . . . . . . . . . . . 90.8 dB(A)**
Compliant sound pressure
at 35 psi (0.24 MPa, 2.4 bar). . . . . . . . . . . . . . . . . . . . . . 81.8 dB(A)**
Compliant sound power
at 35 psi (0.24 MPa, 2.4 bar). . . . . . . . . . . . . . . . . . . . . . 88.7 dB(A)**
Conventional sound pressure
at 43 psi (0.3 MPa, 3.0 bar). . . . . . . . . . . . . . . . . . . . . . . 79.52 dB(A)**
Conventional sound power
at 43 psi (0.3 MPa, 3.0 bar). . . . . . . . . . . . . . . . . . . . . . . 88.05 dB(A)**
Gravity Cup Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 oz. (0.68 liter) cup
Wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 SST, 17-4 PH SST, PEEK, acetal,
UHMWPE