HERO HRO-ST3131 User manual

Page 1HRO-ST3131 Mar 8, 2004
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.

Page 2HRO-ST3131 Mar 8, 2004
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. 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.

Page 3HRO-ST3131 Mar 8, 2004
UNIT LAYOUT
Prime/Drain
Valve
Filter
Manifold
Pressure
Gauge
Suction
Hose
Pump
Wet Cup
Hydraulic
Motor
Prime/Drain
Hose
Pump Outlet
Spray Hose Hook Up
Hydraulic Fluid
Level Gauge
Hydraulic Pump
Shut Off Valve
Hydraulic Fluid
Fill & Vent
Suction Tube &
Suction Filter
Hydraulic Pump
& Pressure Control
Drive Belt
Paint Piston
Pump

Page 4HRO-ST3131 Mar 8, 2004
GAS / HYDRAULIC POWERED AIRLESS
SPRAY PUMPS.
Gas / Hydraulic powered airless spray equipment is an
industrial paint sprayer which uses a gas engine to drive a
hydraulic pump which in turns produces hydraulic pres-
sure. This pump delivers pressure fluid to a hydraulic mo-
tor which drives a high pressure airless piston pump. All
of these components make this unit a heavy duty portable
airless sprayer which is capable of high volume and high
production able to pump and spray light to very high vis-
cous materials. Airless spray is fast, economical and
needs no atomizing air.
Airless spray systems use a high pressure pump
to supply fluid to the spray tip, where it is atomized
by the pressure and sprayed onto a desired surface.
Control of the atomizing pressure is done by regulating
the hydraulic fluid pressure in the hydraulic pump.
The spray is controlled by triggering a hand gun,
or activating the controls of an automated system.
The spray pattern and flow rate is controlled by
choosing the spray tip best suited to your needs.
GENERAL SAFETY WARNING
•High pressure spray can cause serious injury.
•Because of the high pressure and velocity of the fluid
being atomized, paint, solvent or other fluids could
penetrate through your skin, into your body or eyes.
•Never point the spray gun at yourself or anyone else.
•Never put your hands, fingers or any part of the
body over the spray tip/nozzle.
•Even after you shut off the pump, there is still high
pressure in the system, You must always follow the
“PRESSURE RELIEF PROCEDURE” before ser-
vicing, or removal of the spray tip/nozzle.
SAFETY WARNING!
•Use of this high-pressure equipment could result in serious injury and is for
professional use only!
•You must operate this equipment only after the instruction manual is clearly understood.
•Workman and assistant must always wear protective eyewear, gloves, clothing,
and respirators as recommended by the material manufacturer.
SPRAY GUN SAFETY WARNING
•Never point the gun at yourself or anyone
else: This can result in serious injury.
•Safety latch: Engage trigger safety latch in
the closed or “LOCK” Position see FIG 1,
whenever you stop spraying, even for a mo-
ment. Failure to engage trigger safety latch
can result in serious injury.
•Trigger safety guard: This prevents the
gun from triggering accidentally when it is
dropped or bumped. You must not operate
without the trigger safety guard.
•When cleaning or changing the tips use ex-
treme caution and follow the “PRESSURE
RELIEF PROCEDURE” then remove the
spray tip.
•Aim the spray gun into a grounded metal
pail using the lowest pressure possible,
then trigger the spray gun.
•If the fluid sprayed is not diffused into a
irregular stream, replace the diffuser at once.
•If the spray tip clogs while spraying, engage
trigger safety latch in “SAFE” position
immediately.
•Never wipe off around the spray tip until
pressure is fully relieved and the trigger
safety latch in “SAFE” position.
Trigger safety lock
Push up to engage
lock
Fig 1

Page 5HRO-ST3131 Mar 8, 2004
EQUIPMENT PRESSURE
The HRO ST-3131 pump can develop 3500
P.S.I. (225 Bar) maximum working pressure at
Never exceed this maximum pressure to the pump.
Exceeding the maximum working pressure can
result in serious equipment damage or rupture.
FIRE OR EXPLOSION WARNING
The flow of fluid through the inside of pump
and hose can give occasion to static electricity
by the high velocity, so be sure to ground
every part of the spray equipment properly.
Sparking can ignite fumes from solvents and
fluid being sprayed, dust particles and other
flammable substances, whether you are spraying
indoors or outdoors, It can result in serious
bodily injury or property damage.
Never plug in or unplug any power supply cords
in the spray area where there is any chance of
igniting fumes still in the air.
If you experience any static sparking or even a
slight shock while using this equipment, stop
spraying immediately and check the entire
system for the grounding situation.
Do not use again until the problems have been
identified and corrected.
EQUIPMENT ALTERATION WARNING
Never alter any part of spray equipment or
other accessories. Altered or modified. such as
over-pressurizing, modifying parts, using
incompatible chemicals and fluids including
worn or damaged parts can result in malfunction
causing serious bodily injury, fire, explosion or
property damage. Always check all spray
equipment regularly and repair or replace
worn or damaged parts without delay.
Workman and assistant must always wear
protective eyewear, gloves, clothing, and
respirator as recommended by the material
manufacturer.
PRESSURE RELIEF PROCEDURE
Always follow “PRESSURE RELIEF PROCEDURE’’
before servicing, cleaning or removal of the spray tip to
prevent serious bodily injury, fluid injection, or splashing
in the eyes.
1 Engage the spray guns safety latch in “LOCK” position
2 Shut off the power to the gas engine.
3 Disengage the spray gun safety latch and aim the spray
gun into the side of grounded metal pail, and trigger the
gun to relieve pressure.
1 Re engage the spray gun safety latch in “LOCK”
position.
2 Open the drain valve to release pressure. Leave drain
valve in open position during all service operations.
3 Leave drain valve open until you are ready to spray
again.
If you feel that the spray tip or hose is completely clogged
or pressure has not been fully relieved after following the
steps above, remove the tip retaining nut and release
pressure gradually.
HOSE SAFETY
Because of the high pressure in the hoses, if the hose
develops a leak, rupture, or other damage, High pressure
fluid could penetrate the skin, causing serious bodily injury.
•Never use damaged hoses. Before using check the en-
tire hose for cuts, leaks, abrasion, or a bulging cover. If
any type of damage is noticed, replace the hose immedi-
ately.
•Spring guard : Hoses must have spring guard on both
ends where easy to damage or wear than other parts.
•Tighten all fluid connections securely before use. High
pressure fluid can dislodge a loose coupling.
•Do not pull on hoses to move, only lift the hoses up to
move them.
•Do not exceed the hoses to temperatures above 180 de-
grees F. (82 degrees C.) or below –40 degrees F. (-40
degrees C.)
•Before using be sure to check a tag on it which speci-
fies the maximum electrical resistance and do not
exceed the recommended limits.
•Ungrounded or poorly grounded hose can give way
to serious system hazards or fire/explosion hazard.