HERO 1140GSD Operating And Maintenance Instructions Manual

AIRLESS SPRAY EQUIPMENT

1997 VERSION

BEGINNING AT

SERIAL NUMBER

120285

SAFETY, OPERATING AND

MAINTENANCE INSTRUCTIONS

AND PARTS LIST

Do Not attempt to operate this machine until you have read and

understand ALL safety precautions and operating instructions.

Equipment and chemicals when used improperly can be dangerous

H.E.R.O. Industries

division of Middlefield Bancorp Limited

2719 Lake City Way,

Burnaby, B.C., Canada

Phone: ( 604 ) 420- 6543 Fax: ( 604 ) 420-8725

Toll Free: 1-800- 494-4376

E-mail: [e-mail] Website: //www.hero.ca

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

U.S. mail: P.O. Box 75, Custer, WA 98240- 0052

Page 37

H.E.R.O. WARRANTY

H.E.R.O. INDUSTRIES, guarantees this airless pump to be free of defects
in materials and workmanship to the original owner, for a period of one full
year from the date of purchase.
The warranty entitles the owner to parts replacement at no charge. The
parts replacement warranty is valid for any necessary replacement, whither
caused by material or workmanship defect or simple wear. The hydrapulse
membrane (part# 4-04-22-4500) is warranted for LIFE. Installation costs
for the hydrapulse membrane is provided for the first 12 months only. H.
E.R.O. Industries offers no warranty on the intake ball, outgo ball, drive
belt, hoses, gun or accessories, plastic, rubber, other soft goods or motor
used in or supplied with the H.E.R.O. sprayer.
Motor, accessories, etc., which are supplied by other manufacturers and are
attached to or supplied with the H.E.R.O. airless pump, are warranted only
to the extent that these parts are warranted by their respective
manufacturers. Warranty claims must be made directly to such
manufacturers or their local authorized service depots.
The warranty is only applicable to the original purchaser and the equipment
has been properly used, operated and maintained in accordance with all
instructions, precautions and warnings contained in this manual. For the
purpose of this warranty, damage resulting from accident, abuse, improper
cleaning or operation, fire, flood, or Act of God, is not covered.
H.E.R.O.’s liability is limited to replacing parts found to be defective or
worn and does not include; transportation costs, damage or other expenses
of any kind incurred in connection with the purchase and use of this
sprayer.
Repairs claimed under warranty must be performed at an authorized
H.E.R.O. Service Center, using only genuine H.E.R.O. parts. Parts
necessary under warranty claim will be supplied by your local H.E.R.O.
Service Center.
DO NOT return worn parts to factory without authorization.
To qualify for the warranty, the warranty card (attached to this page)
supplied with this H.E.R.O. airless pump, must be completed with
equipment serial number and signed by the purchaser, and postmarked
within ten (10) days of purchase.

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 1

TABLE OF CONTENTS

or removing of any part, shut off power and relieve pressure.

For greatest user satisfaction, please familiarize

yourself with all maintenance and operational instructions

Important Safety Precautions ..............................................................................................3-4

Introduction ..........................................................................................................................5

Operating Instructions ...........................................................................................................5

Setting Up To Spray ...........................................................................................................6-7

Flushing The Unit .................................................................................................................8

Special Notes ........................................................................................................................9

Airless Spray Painting Suggestions .................................................................................10-12

Trouble Shooting ...........................................................................................................13-21

Hydrapulse Membrane Replacement ................................................................................... 22

In take Seat Replacement .....................................................................................................23

Outgo Valve ...................................................................................................................... 24

Piston Repairs ...............................................................................................................25-26

Prime Valve Repairs ........................................................................................................... 27

Pressure Control Valve Repairs ........................................................................................... 28

Accessories ......................................................................................................................... 29

Parts List And Descriptions ............................................................................................30-34

Exploded Unit Diagram .................................................................................................35-36

IMPORTANT

NOTE: AS WITH ALL MECHANICAL EQUIPMENT, PROPER OPERATING AND
MAINTENANCE PROCEDURES ARE REQUIRED TO KEEP YOUR H.E.R.O. AIRLESS
PUMP PERFORMING TO YOUR SATISFACTION. THE FOLLOWING SAFETY,
OPERATING AND MAINTENANCE INSTRUCTIONS ARE IMPORTANT.

Read and understand this manual completely, especially with regard to all safety precautions. Read
and follow instructions on all warning labels on your equipment. Keep the warning labels clean and
readable at all times. Order new labels from your local distributor or from H.E.R.O. Industries Ltd. if
needed.

The manufacturer shall not be responsible for any loss, damages, or injury of any kind or nature
whatsoever resulting from the use the equipment other than in strict compliance with the instructions,
cautions and warnings contained in this operating and instruction manual and as displayed on the face
of the equipment.

This system is capable of producing 2400 psi. ( spray pressure ). To avoid rupture and injury DO
NOT operate this pump with components rated less than 3000 psi. working pressure (including but
not limited to spray guns, hose and connections).

Before servicing, cleaning

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 2

IMPORTANT SAFETY PRECAUTIONS

WARNING
NEVER PLACE FINGERS NEAR SPRAY TIP OF GUN. NEVER POINT GUN TOWARD
ANY PART OF YOUR BODY, OR THAT OF ANY OTHER PERSON. MATERIAL ISSUING
FROM THE SPRAY TIP IS AT HIGH PRESSURE. IF FINGERS, OR ANY PART OF THE
BODY ARE PLACED NEAR THE TIP OF THE SPRAY GUN, IT IS POSSIBLE THAT THE
SPRAY COULD BREAK THE SKIN AND INJECT SOME OF THE SPRAY MATERIAL. IF
INJURY DOES OCCUR, SEEK THE IMMEDIATE ATTENTION OF A MEDICAL DOCTOR.
BE PREPARED TO INFORM THE DOCTOR WHAT FLUID WAS INJECTED, IF THE
INJURY IS OF AN INJECTION NATURE. EQUIPMENT AND CHEMICALS WHEN USED
IMPROPERLY CAN BE DANGEROUS!

ý NEVER place any part of the body in front of the spray tip or aim the gun toward any part of the

body.

ý NEVER point the gun toward any individual.
ý NEVER treat any injury as a simple cut. If injury does occur, seek immediate medical attention. Be

prepared to inform the doctor what fluid was injected.

ý NEVER allow another person to use the sprayer unless he is thoroughly instructed on its

operation and has read all safety precautions in this manual and all safety warning labels attached to
unit.

ý NEVER use around children.
ý NEVER attempt to perform any maintenance or service on any part of the unit spray system

without first;

1. Turn off the engine.

2. Turn the engine switch to “OFF” position.

3. Relieving all pressure in the pump by triggering the gun.

4. Locking gun trigger in "LOCKED" position, with gun locked closed.

ý NEVER operate the sprayer without the tip guard complete and in place.
ý NEVER spray any material in the vicinity of open flame, pilot lights, electrical outlets or any

other source of ignition.

ý NEVER spray volatile materials with flash points lower than 140 F (60 C).
ý NEVER attempt to stop any leakage in the paint line or at any fitting with your hand or any part of

your body. Immediately shut off the unit should leakage occur.

ý NEVER allow paint hose to become kinked, or to vibrate against rough or sharp surfaces.
ý NEVER operate the unit at pressures higher than the pressure rating of the lowest rated

component in the system, or at pressure higher than factory preset.

ý NEVER spray in an enclosed area. The spraying area must be well ventilated to safely remove

chemical vapors.

ý NEVER operate the unit with worn or damaged accessories, or with accessories other than those

supplied by H.E.R.O. Industries, unless the accessories have been first specifically approved in
writing by H.E.R.O. Industries Ltd.

ý NEVER allow the unit to be serviced or repaired anywhere other than an authorized H.E.R.O.

Service Center, or with other than genuine H.E.R.O. parts or components.

ý NEVER leave unit unattended without first shutting off, triggering the gun to relieve all pump

pressure, and setting the trigger lock on gun in "LOCKED" position, with gun locked closed.

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 3

ALWAYS

þ ALWAYS follow H.E.R.O. recommendations for operation and safety completely.
þ ALWAYS set trigger lock on gun in "LOCKED" position when not in use, with gun locked close.
þ ALWAYS check connections and fittings for tightness before operating the unit.
þ ALWAYS locate the unit in a well ventilated area a minimum of 25 feet from the spray area.
þ ALWAYS ground the unit, the paint containers, and the object being sprayed to eliminate static

discharge. Ensure that all these objects remain grounded throughout the entire spraying operation.

þ ALWAYS use accessories and components approved for at least 3000 psi (working pressure) in the

spraying system.

þ ALWAYS use accessories and components supplied by H.E.R.O. Industries., or specifically

approved in writing by H.E.R.O. Industries Ltd. on with the unit.

þ ALWAYS examine accessories for wear or damage before operating the unit.
þ ALWAYS use lowest possible pressure when flushing and cleaning the unit, and hold the gun firmly

against a metal container to reduce static discharge possibility.

þ ALWAYS wear a face filter mask when operating the unit.
þ ALWAYS ;

1. Turn off the engine.

2. Turn the engine switch to “OFF” position.

3. Relieve all pressure in the pump by triggering the gun.

4. Lock gun trigger in "LOCKED" position, with gun locked closed before attempting to perform
any maintenance or service on any part of the unit spray system.

þ ALWAYS wear safety glasses when operating the unit.
þ ALWAYS ensure fire extinguishing equipment is readily available and properly maintained in the spray

area.

þ ALWAYS observe good housekeeping and keep the spray area free from obstructions.
þ ALWAYS be aware that certain chemicals may react with aluminum, carbide, or other components in

the pump system. Read the manufacturer's label on all materials to be sprayed, and follow the
manufacturer's recommendations. If in doubt, consult your material sup plier to be sure.

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 4

H.E.R.O. AIRLESS SPRAY PAINTING

Welcome to the world of H.E.R.O. airless paint spraying. We are sure you will enjoy owning and operating
your new H.E.R.O. model 1140GSD. With H.E.R.O. airless spray equipment you will avoid the
inconvenience and mess of overspray. You are spraying paint, not air, and the paint is driven to the painting
surface in a clean, fan shaped spray which penetrates all cracks and corners. To attain these results, you must
adjust the pressure as low as possible. We recommend that you become familiar with your H.E.R.O. unit.
Discuss with your dealer the useful accessory items he has to offer - various types of tips, extension poles for
hard to reach areas, extra hose, etc. Use of accessory items is often the difference between a good job and an
excellent one!

HYDRAPULSE “B”

BEGINNING AT

SERIAL NUMBER

1997

VERSION

120285

OPERATING INSTRUCTIONS

WARNING

Do not attempt to operate this machine until you have read and understood all safety precautions and
operating instructions. Equipment and chemicals when used improperly can be dangerous.

Your H.E.R.O. airless sprayer has been fully factory tested prior to shipment.

BEFORE STARTING YOUR H.E.R.O. PUMP....

CHECK to ensure that the shipping seal has been removed from under the cap on the hydraulic tank.

Hydraulic tank should be at least 3/4 full of H.E.R.O. LVO hydraulic fluid.

CHECK all fittings and connections in the pump system, hose, and gun to ensure that they are tight.
CHECK to ensure that there is a spray tip in the gun, and that the tip is the correct size for the coating you

are to spray. ( There are various tips available, for each type of coating or configuration. See " Airless Spray
Tip " on page 11 , for proper tip selection.
CHECK to ensure that you have H.E.R.O. strainer bags, H.E.R.O. Wonder Wash, appropriate thinner for
the paint, a waste container, and any other accessories you may require for the job.

READ THIS MANUAL THOROUGHLY.
READ THE HONDA ENGINE MANUAL SUPPLIED WITH THE UNIT. FOLLOW ALL THEIR
RECOMMENDED PROCEDURES FOR “START -UP” AND OPERATION

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 5

SETTING UP TO SPRAY

1. Remove unit from shipping carton.

2. Attach intake siphon assembly (ref# 1) to intake elbow (ref# 8). The intake elbow provides a swiveling
connection during assembly only. Two wrenches are required to tighten these fittings. When sufficiently
tightened the siphon hose will no longer swivel or move, as such, ensure the siphon hose is positioned in
the desired direction prior to making the final tightening. The desired position is straight back from the
intake. Use caution to avoid over tightening which may result in cracked or broken fittings.

8

3. Attach prime hose (ref# 51) to
prime valve (ref# 36) hose barb (ref#50). Secure with clamp (ref# 52).

4. Attach paint hose to outgo tee (ref# 35).

5. Attach gun to paint hose.
NOTE; Spray tip and tip guard should be attached to gun prior to attaching to hose.

36

6. Place intake siphon assembly into a clean 5 gallon pail.

7. Install strainer bag (accessory item 5GAL SB) in pail and secure
with large rubber band (accessory item 106).
NOTE; Strainer bag must remain 4 inches from the bottom of pail

8. Trigger gun to release any pressure in the unit. Use extreme caution
to ensure that the gun is not directed towards anyone or any object
which may be damaged.
NOTE; Unit may contain storage solution.

9. To remove storage solution, add one gallon of thinner, compatible
with the type of paint to be used, to the siphon pail.

7

11

Paint
Hose

52 51

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Strainer bag and si-

phon tube.

ALWAYS

strain paint before

starting

Page 6

46

75

SETTING UP TO SPRAY - CONTINUED

10. Turn pressure control knob (ref# 75) counter clockwise to lowest pressure
setting.

11. Observe and perform all pre-operation checks as required by the engine
manufacturer, ( Honda ). See your Honda owner’s manual.

12. Start engine. See Honda owner’s manual for correct procedures.

13. Turn prime valve handle (ref# 46) counter clockwise until fully open. Allow
thinner to circulate back into the siphon pail for a few minutes. Then turn the
prime valve knob clockwise to close the valve ( close tightly ), and direct the
flow to the paint hose and gun. Leave the pressure setting low.

14. Trigger gun into a waste container.

15. Remove rinse / prime fluid and pour paint through strainer bag into siphon pail.

16. Repeat step 13, until paint flows freely.

NOTE; Never turn prime valve back to "prime" position when the unit is
under pressure.
NOTE: The thicker paint will require a longer time to complete the initial
prime circulation through the prime valve. Leave the valve in the prime
position to ensure the complete removal of all air and pre-prime fluid. Several
minutes may be required, particularly with thicker viscosity products.

17. Spray a test pattern. Begin by spraying a test pattern onto old newspaper or
other scrap material.

18. Increase the pressure, slowly at first, by turning the pressure control knob
clockwise. Continue increasing the pressure until the spray pattern is
uniformed from top to bottom, with no heavy areas. Secure pressure control
setting, by turning the silver lock ring (ref# 77) counter clockwise until snugly
against the face of the pressure control knob. If heavy areas are still visible at
maximum pressure setting, thin the paint with the correct thinner, according to
the paint manufacturer's recommendations.

19. Spray paint.

It is recommended that all products entering the sprayer, be pre-strained to remove any large
particles and contaminants, BEFORE they are drawn into the sprayer. The strainer bag should
remain in place throughout the painting
operation. This will prevent foreign matter from falling into the bucket and
contaminating the previously strained paint. The gun filter should not be relied upon to do all the
paint filtration. Any dirt, grime or other undesirable particles which reach the gun filter have
passed through the entire paint pump and have possibly created unnecessary damage and
inconvenience. Always strain the paint before siphoning.

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Paint Straining

Page 7

FLUSHING THE UNIT AT SHUTDOWN

OR COLOR CHANGE

If shutting down for a short period of time, it is sufficient to trigger the gun
to relieve pressure. Then set the safety lock on gun to "locked" position with
the gun locked closed and immerse the gun in a container of the correct
thinner for the paint you are spraying.

1. Remove spray tip from gun.

2. Turn pressure control knob counter clockwise to low pressure setting.
Only use sufficient pressure to allow material to move through the
sprayer. DO NOT operate at or near full pressure.

3. Remove siphon assembly from paint container.

4. Trigger gun, back into paint container, until unit runs dry.
NOTE: Pump and spray hose will continue to contain paint. This paint
may be recovered by placing prime hose into paint container and draining
the remainder while re-priming with cleaning fluid. See step 5* and 6*.

5. Place siphon assembly in container of correct thinner, for the spray
product being used,, and prime the pump as shown in step 13, of
"Spraying". *See special notes from step 4. Allow thinner to circulate
back into the container for a few minutes to flush the prime valve.

6. Close prime valve.

7. Trigger gun into paint container until thinner comes through. *See special
notes from step 4. Re-direct flow into waste container and continue
spraying until thinner runs clear. Heavily soiled thinners may have to be
changed to complete cleaning job.

8. Lift siphon assembly and allow pump to run dry.

9. Repeat procedure using a gallon of H.E.R.O. Equipment Wonder
Wash solution. If not using Wonder Wash, unit must not be stored with
water. Only store with a non corrosive material ( Paint thinner, solvent ).

10. Switch unit "off" and trigger gun to relieve remaining pressure.

11. Remove and rinse gun handle filter in correct thinner.

SPECIAL STORAGE INSTRUCTIONS

In areas where the sprayer is NOT used 12 months of the year, special
preparations must be used for winter or off season storage. Because solvents
evaporate quickly, they should not be used for long term storage. A petroleum
based solution ( solvent and oil ) should be used as an extended storage
material. DO NOT allow storage solution to freeze in the sprayer.

H.E.R.O. Equipment Wonder Wash, available from your H.E.R.O.
distributor, will provide the added cleaning benefits of solvent at a much
lower cost. Suitable as a short term ( 1- 2 days ) storage solution only

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 8

SPECIAL NOTES AND INSTRUCTIONS

ose = 3 of 50’ x 1/4” paint hose and 2 of 50’ x 3/8 paint hose.

= 3 of 50’ x 1/4” paint hose and 3 of 50’ x 3/8 paint hose.

NEVER LEAVE THE UNIT UNDER PRESSURE WHEN NOT SPRAYING (ENGINE TURNED
OFF). RELIEVE PRESSURE BY TRIGGERING GUN. NEVER STORE THE UNIT WITH PAINT
OR WATER IN THE PUMP SYSTEM, EVEN OVERNIGHT.

ý NEVER attempt to start the engine when the unit is under pressure. Relieve pressure and follow
instructions in "Setting up to spray"

ý Avoid operating the unit while tilted. Keeping it level assures greater operating efficiency.
þ Always follow flushing and cleaning instructions exactly.
þ In hot weather, locate unit in shade.
þ Regularly check the level of H.E.R.O. LVO hydraulic fluid in the hydraulic tank. It should be kept near

full, top up as needed with only genuine H.E.R.O. LVO hydraulic fluid.
þ Crankshaft eccentric bearing should be greased at regular intervals consistent with hours of use. Use
MO-2 grease (i.e. common auto grease) approximately every 10 hours of operation.
þ A minimum 50’ and a maximum of 300’ of airless spray hose may be used.
NOTE: 50’ x 3/8” paint hose ( part # 117 ) should be used for every 50’ x 1/4” paint hose
( part # 114 ) over 100’.
100’ total length of paint hose = 2 of 50’ x 1/4” paint hose.
150’ total length of paint hose = 2 of 50’ x 1/4” paint hose and 1 of 50’ x 3/8 paint hose.
200’ total length of paint hose = 2 of 50’ x 1/4” paint hose and 2 of 50’ x 3/8 paint hose.
250’ total length of paint h
300’ total length of paint hose
þ Product viscosity, altitude ( feet above sea level ) and vertical reach can effect pump performance and
special accessories may be required. Product viscosity may have to be further reduced at higher
elevations. The larger diameter 3/8” paint hose should be used.

þ Check drive belts ( part# 66/100 ) tension frequently. The belt will stretch with use, and should be

adjusted after 20 hours of operation and again after 50 hours. Periodic checks after 50 hours should be
made. Failure of the drive belt is not covered by the equipment warranty, so proper maintenance of the
belt is important.

þ Regularly check fittings, bolts, nuts and connections for damage. Tighten, adjust or replace as required.
þ Check crankshaft alignment often. An out of alignment crankshaft will cause the damage to the

eccentric bearing.

GAS ENGINE

þ Check the engine oil level daily. Top up only with the manufacturer’s recommended oil. Running the

engine with insufficient oil can cause serious engine damage.

þ Check the engine air cleaner daily. NEVER operate without an air cleaner.
þ Use only UNLEADED or low leaded gasoline.
þ The engine requires regular operation and should not be stored for prolonged periods without operating.

Run for a minimum 15 minutes each week while in storage.

þ Remove gas before storing.
þ Have the engine professionally serviced by an approved service technician on a regular bases as

recommended by the manufacturer ( Honda ).

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 9

SPRAY TIP SELECTION

TIP SIZE FOR APPLICATION OF
.021 Exterior Latex on large unobstructed areas.(max. size allowed) ( 60 OZ. )

.018 Interior Latex, Exterior Latex, Shake Paint, Exterior Flat Paints. ( 46 OZ. )
.015 Alkyd Flat Enamel, Interior Latex, Semi-Gloss Enamel, Stains. ( 30 OZ. )
.013 Fine ground Gloss Enamels, and good quality Stains. ( 23 OZ. )
.011 Clear Varnishes and Lacquers. ( 15 OZ. )
.009 Clear Varnishes and Lacquers. ( 10 OZ. )

NOTE: The above volumes achieved with gun wide open for 1 minute and pump spraying at
2000 psi. All volumes are approximate. To test worn tips, spray water through the tip at 2000 psi.
for 1 minute. Spray into bucket and weigh amount (less weight of bucket). If it is substantially
greater than what is listed above, then the tip should be discarded or reclassified. As a tip wears, the
hole gets larger and the fan pattern becomes narrower.

ORIFICE SIZE

All tips are rated by the size of the orifice or bore size. The bore size is measured in thousandths of an inch
( .018 = 18 thousandths of an inch ). The size of tip required is based on the consistency of the material to be
sprayed. The thicker the paint, the larger the tip size required. Always consult the product label or ask the
paint retailer for the manufacturer's recommendations with regard to proper tip sizes.

FAN WIDTH

Fan width or pattern width is determined by the spray tip's "fan width" classification. This size is measured in
inches, and is determined when spraying 12 inches from the spray surface. Various methods of noting the fan
widths are used by tip manufacturers. Ask your distributor for assistance.
NOTE: Two tips having the same tip size, but different fan widths will deliver the same amount of paint
over a different area (wider or narrower strip). A spray tip with a narrow pattern width makes it
easy to spray in tight places. Use only good quality, high-pressure tungsten carbide spray tips.

SPRAY TIP REPLACEMENT

During use, especially with Latex paint, high pressure and material abrasion will cause the orifice to grow
larger. As the orifice grows larger, the fan width grows smaller. Replace tips before they become excessively
worn. Worn tips waste paint, cause overspray, make cutting in difficult, and decrease sprayer performance.
NOTE: When using Latex paint, a spray tip will wear at the rate of one size for approximately every 100
gallons of material sprayed.

An excessively worn tip can be the cause of apparent operating problems with the unit. If a tip is worn
past the aperture size which the unit can support, pulsation will become evident in the spray fan/pattern.
Added strain is placed on the Hydrapulse membrane as it attempts to keep the spray pressure consistent.
When the tip wears beyond .031, its is releasing more material than the unit is bringing in. The natural
reserve of product in the paint chamber is reduced an d harm to the membrane begins. ALWAYS check
your tips for wear when trouble shooting the equipment. The 1140GSD can support up to a maximum of

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 10

AIRLESS SPRAY PAINTING
SUGGESTIONS AND TECHNIQUE

A good airless spray application is the result of many factors. Surface preparation, which includes cleaning

and degreasing, priming, material compatibility, quality finish product and correct applicatio n technique, are
all important to the finished results.

The key to all good applications is a good spray gun technique. The finished results are what the client will
look at and base his opinion on. Your skill and abilities are as important as good equip ment and good paint.
Proper application techniques can easily be learned by using the following simple guidelines. If you are not
familiar with the basic spray techniques we recommend that you study this portion of the manual and
practice the techniques shown. Practice your technique on scrap cardboard or old newspaper until you feel
confident.

FOR EXCELLENT RESULTS, READ AND PRACTICE THESE TECHNIQUES

1. Always strain all paint through a H.E.R.O. strainer bag.
The most common reason for airless sprayers to malfunction is foreign matter jamming the valves or
plugging the tip. Always strain the paint before putting through the pump.

2. Always spray at the lowest pressure setting which will provide a uniform spray fan. (fig. 1, page 10)
Adjust pressure control knob so that paint is completely atomized . Insufficient pressure will result in
"tailing". Too much pressure will result in excess fog and over spray, excess tip wear, and increased
sprayer wear and tear. See setting up to spray, page 5.

3. Alway s spray at right angles to the surface being sprayed. (fig. 2, page 10)
Angling or arcing the nozzle toward the surface will cause uneven coverage and excessive
overspray.

4. Always hold spray gun 12-15 inches from spray surface. (fig. 3, page 10)
Too close and the fan width will be reduced and material will be applied too heavily (runs).
Too far from the surface and you will have excessive overspray and light coverage (transparent).

5. Always move the gun parallel to the surface being sprayed, at a consistent speed.
This avoids uneven coverage (thick or thin areas).

6. Always start the spray stroke before triggering the gun and release the trigger before completing the
stroke. (fig. 4, page 10)
This avoids heavy build up of paint at either end of the spray stroke.

7. Always lap your spray pattern by one half. (fig. 5, page 10)
This assures full coverage of the surface being painted.

H.E.R.O. Industries . 1140GSD Owner’s Manual - “B” Series

Page 11