For professional use only.
Not approved for use in explosive atmosphere or hazardous locations.
For portable airless spraying of architectural paints and coatings.
3300 psi (22.8 MPa, 228 bar) Maximum Working Pressure
See page 3 for model information, including maximum working pressure and approvals.
Important Safety Instructions
Read all warnings and instructions in this manual and in related manuals.
Be familiar with the controls and the proper usage of the equipment.
Save these instructions.
Related Manuals:
308491DutyMax GH230 Gun334654Pump
309495DutyMax GH300 Gun310812Electric Motor
EN
Standard Series
Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.
*Performance is limited when using electric motor vs. gas engine
OEM Kits
Kit NumberOEM ModelDescription
24W299GH230/300 OEM3300 psi (22.8 MPa, 228 bar) Maximum Working Pressure (psi)
334606C3
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. When these symbols appear in the body of this
manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols
and warnings not covered in this section may appear throughout the body of this manual where
applicable.
Electric Motor Warnings
HIGH VOLTAGE ELECTRIC SHOCK HAZARD
This equipment uses high voltage power. Improper contact with high voltage
equipment will cause death or serious injury.
• Turn off and disconnect power cord before servicing equipment.
• This equipment must be grounded. Connect only to grounded power source.
• Use only 3-wire extension cords for 240V and single phase models.
• Use only 5-wire extension cords for 400 AC and three phase models.
• Ensure ground prongs are intact on power and extension cords.
• Do not expose to rain. Store indoors.
4334606C
Warnings
120V US
230V
GROUNDING
This product must be grounded. In the event of an electrical short circuit, grounding
reduces the risk of electric shock by providing an escape wire for the electric current.
This product is equipped with a cord having a grounding wire with an appropriate
grounding plug. The plug must be plugged into an outlet that is properly installed and
grounded in accordance with all local codes and ordinances.
• Improper installation of the grounding plug is able to result in a risk of electric
shock.
• When repair or replacement of the cord or plug is required, do not connect the
grounding wire to either flat blade terminal.
• The wire with insulation having an outer surface that is green with or without
yellow stripes is the grounding wire.
• Check with a qualified electrician or serviceman when the grounding instructions
are not completely understood, or when in doubt as to whether the product is
properly grounded.
• Do not modify the plug provided; if it does not fit the outlet, have the proper outlet
installed by a qualified electrician.
• This product is for use on a nominal 120V or 230V circuit and has a grounding
plug similar to the plugs illustrated in the figure below.
• Only connect the product to an outlet having the same configuration as the plug.
• Do not use an adapter with this product.
Extension Cords:
• Use only a 3-wire extension cord that has a grounding plug and a grounding
receptacle that accepts the plug on the product.
• Make sure your extension cord is not damaged. If an extension cord is
necessary, use 12 AWG (2.5 mm2) minimum to carry the current that the product
draws.
• An undersized cord results in a drop in line voltage and loss of power and
overheating.
334606C5
Warnings
Electric Motor Warnings
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:
• Do not spray flammable or combustible materials near an open flame or sources
of ignition such as cigarettes, motors, and electrical equipment.
• Paint or solvent flowing through the equipment is able to result in static
electricity. Static electricity creates a risk of fire or explosion in the presence of
paint or solvent fumes. All parts of the spray system, including the pump, hose
assembly, spray gun, and objects in and around the spray area shall be properly
grounded to protect against static discharge and sparks. Use Graco conductive
or grounded high-pressure airless paint sprayer hoses.
• Verify that all containers and collection systems are grounded to prevent static
discharge. Do not use pail liners unless they are antistatic or conductive.
• Connect to a grounded outlet and use grounded extensions cords. Do not use
a 3-to-2 adapter.
• Do not use a paint or a solvent containing halogenated hydrocarbons.
• Do not spray flammable or combustible liquids in a confined area.
• Keep spray area well-ventilated. Keep a good supply of fresh air moving through
the area.
• Sprayer generates sparks. Keep pump assembly in a well ventilated area at
least 20 feet (6.1 m) from the spray area when spraying, flushing, cleaning, or
servicing. Do not spray pump assembly.
• Do not smoke in the spray area or spray where sparks or flame is present.
• Do not operate light switches, engines, or similar spark producing products in the
spray area.
• Keep area clean and free of paint or solvent containers, rags, and other
flammable materials.
• Know the contents of the paints and solvents being sprayed. Read all Material
Safety Data Sheets (MSDS) and container labels provided with the paints and
solvents. Follow the paint and solvents manufacturer’s safety instructions.
• Fire extinguisher equipment shall be present and working.
6334606C
Gas Engine Warnings
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.
• Do not fill fuel tank while engine is running or hot; shut off engine and let it cool.
Fuel is flammable and can ignite or explode if spilled on hot surface.
• 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 power or light switches on or off when
flammable fumes are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail
liners unless they are antistatic or conductive.
• Stop operation immediately if static sparking occurs or you feel a shock. Do
not use equipment until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
CARBON MONOXIDE HAZARD
Exhaust contains poisonous carbon monoxide, which is colorless and odorless.
Breathing carbon monoxide can cause death.
• Do not operate in an enclosed area.
Warnings
BURN HAZARD
Equipment surfaces and fluid that is heated can become very hot during operation.
To avoid severe burns:
• Do not touch hot fluid or equipment.
334606C7
Warnings
Electric Motor/Gas Engine Warnings
SKIN INJECTION HAZARD
High-pressure spray is able to inject toxins into the body and cause serious bodily
injury. In the event that injection occurs, get immediate surgical treatment.
• Do not aim the gun at, or spray any person or animal.
• Keep hands and other body parts away from the discharge. For example, do not
try to stop leaks with any part of the body.
• Always use the nozzle tip guard. Do not spray without nozzle tip guard in place.
• Use Graco nozzle tips.
• Use caution when cleaning and changing nozzle tips. In the case where the
nozzle tip clogs while spraying, follow the Pressure Relief Procedure for
turning off the unit and relieving the pressure before removing the nozzle tip to
clean.
• Equipment maintains pressure after power is shut off. Do not leave the
equipment energized or under pressure while unattended. Follow the Pressure Relief Procedure when the equipment is unattended or not in use, and before
servicing, cleaning, or removing parts.
• Check hoses and parts for signs of damage. Replace any damaged hoses or
parts.
• This system is capable of producing 3300 psi (22.8 MPa, 228 bar). Use Graco
replacement parts or accessories that are rated a minimum of 3300 psi (22.8
MPa, 228 bar).
• Always engage the trigger lock when not spraying. Verify the trigger lock is
functioning properly.
• Verify that all connections are secure before operating the unit.
• Know how to stop the unit and bleed pressure quickly. Be thoroughly familiar
with the controls.
8334606C
Warnings
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Always wear appropriate gloves, eye protection, and a respirator or mask when
painting.
• Do not operate or spray near children. Keep children away from equipment at
all times.
• Do not overreach or stand on an unstable support. Keep effective footing and
balance at all times.
• Stay alert and watch what you are doing.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not kink or over-bend the hose.
• Do not expose the hose to temperatures or to pressures in excess of those
specified by Graco.
• Do not use the hose as a strength member to pull or lift the equipment.
• Do not spray with a hose shorter than 25 feet.
• Do not alter or modify equipment. Alterations or modifications may void agency
approvals and create safety hazards.
• Make sure all equipment is rated and approved for the environment in which you
are using it.
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can
cause serious chemical reaction and equipment rupture. Failure to follow this
warning can result in death, serious injury, or property damage.
• Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated
hydrocarbon solvents or fluids containing such solvents.
• Do not use chlorine bleach.
• Many other fluids may contain chemicals that can react with aluminum. Contact
your material supplier for compatibility.
MOVING PARTS HAZARD
Moving parts can pinch, cut or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or
servicing equipment, follow the Pressure Relief Procedure and disconnect all
power sources.
334606C9
Warnings
ENTANGLEMENT HAZARD
Rotating parts can cause serious injury.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Do not wear loose clothing, jewelry or long hair while operating equipment.
• Equipment can start without warning. Before checking, moving, or servicing
equipment, follow the Pressure Relief Procedure and disconnect all power
sources.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or
on skin, inhaled, or swallowed.
• Read MSDSs to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to
applicable guidelines.
RECOIL HAZARD
Gun may recoil when triggered. If you are not standing securely, you could fall and
be seriously injured.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent
serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and
burns. Protective equipment includes but is not limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and
solvent manufacturer.
CALIFORNIA PROPOSITION 65
The engine exhaust from this product contains a chemical known to the State of
California to cause cancer, birth defects or other reproductive harm.
This product contains a chemical known to the State of California to cause cancer,
birth defects or other reproductive harm. Wash hands after handling.
10334606C
Component Identification
3.
13.
2.
7.
OFF
ON
on
off
bar/MPa
PSI
8.
OI
4.
1.
11.
9.
10.
5.
6.
14.
15.
ti25307a
12.
16.
Component Identification
Standard Models (EH/GH™230, 300)
1Pressure Gauge
2Pressure Control
3Hydraulic Pump Valve
4Threaded Pump Connection
5Displacement Pump
6Inlet Strainer
7Engine On/Off Switch
8Engine Controls
334606C11
9Electric Motor On/Off Switch
10GunTrigger Lock
11Grounding Clamp
12Serial Number Tag
13Prime/Drain Valve
14Hydraulic Oil Cap / Dipstick
15Hydraulic Oil Filter
16Paint Filter
Component Identification
3.
13.
2.
12.
7.
OFF
ON
on
off
bar/MPa
PSI
8.
OI
4.
1.
11.
9.
10.
5.
6.
14.
15.
16.17.
ti25308a
18.
Component Identification
ProContractor Models (EH/GH™230, 300)
1Pressure Gauge
2Pressure Control
3Hydraulic Pump Valve
4ProConnect
5Displacement Pump
6Inlet Strainer
7Engine On/Off Switch
8Engine Controls
9Electric Motor On/Off Switch
12334606C
10GunTrigger Lock
11Grounding Clamp
12Serial Number Tag
13Prime/Drain Valve
14Hydraulic Oil Cap / Dipstick
15Hose Reel Lock
16Hose Reel Handle
17Hydraulic Oil Filter
18Paint Filter
Grounding
ti18197a
Grounding Procedure for
Gas Engine
The equipment must be grounded to
reduce the risk of static sparking. Static
sparking can cause fumes to ignite or
explode. Grounding provides an escape
wire for the electric current.
To ground sprayer: Attach sprayer
grounding clamp to earth ground.
Air and fluid hoses: Use only electrically
conductive hoses with a maximum of 500ft.
(150 m) combined hose length to ensure
grounding continuity. Check electrical
resistance of hoses. If total resistance to
ground exceeds 29 megaohms, replace hose
immediately.
Spray gun: Ground through connection to a
properly grounded fluid hose and pump.
Grounding
Grounding Procedure for
Electric Motor
HIGH VOLTAGE ELECTRIC SHOCK
HAZARD
This equipment uses high voltage power.
Improper contact with high voltage
equipment will cause death or serious
injury.
• Turn off and disconnect power cord
before servicing equipment.
• This equipment must be grounded.
Connect only to grounded power
source.
• Use only 3-wire extension cords for
240V and single phase models
• Use only 5-wire extension cords for
400 AC and three phase models.
• Ensure ground prongs are intact on
power and extension cords.
• Do not expose to rain. Store indoors.
• All electrical wiring must be done by a
qualified electrician and comply with
all local codes and regulations.
The equipment must be grounded to
reduce the risk of static sparking and
electric shock. An electric or static spark
can cause fumes to ignite or explode. An
improper ground can cause electric
shock. A good ground provides an escape
wire for the electric current.
The sprayer cord includes a grounding wire
with an appropriate grounding contact.
If using the electric motor, plug must be
plugged into an actual outlet that is properly
installed and grounded in accordance with all
local codes and ordinances.
Do not modify the plug provided; if it does not
fit the outlet, have the proper outlet installed
by a qualified electrician.
334606C13
Grounding
ti25360a
Power Requirements
•110-120V units require 100-120 VAC,
50/60 Hz, 15A, 1 phase.
•230V units require 230 VAC, 50/60 Hz,
16A, 1 phase
•380-400V units require 400 VAC, 50 Hz,
16A, 3 phase, 3P+N+E, 6H power
connection
•To operate the EH300DI (24W965)
sprayer, the generator needs to be sized
for 15 kW output (minimum).
Extension Cords
Use an extension cord with an undamaged
ground contact. If an extension cord is
necessary, use a 3-wire, 12 AWG (2.5 mm²)
minimum.
NOTE: Smaller gauge or longer extension
cords may reduce sprayer performance.
Grounding of Pails
Solvent pails used when flushing: Follow
local code. Use only conductive metal pails,
placed on a grounded surface. Do not place
the pail on a non-conductive surface, such as
paper or cardboard, which interrupts
grounding continuity.
Alwaysground a metal pail: connect a
ground wire to the pail. Clamp one end to the
pail and the other end to a true earth ground
such as a water pipe.
To maintain ground continuity when
sprayer is flushed or pressure is relieved:
hold metal part of spray gun firmly to the side
of a grounded metal pail then trigger the gun.
ti24585a
Circuit Protection
Connect sprayers only to circuits which have
the properly sized circuit breaker and/or
fuses (for unit power requirements see
Technical Data,
pages 60-63).
14334606C
Pressure Relief Procedure
Pressure Relief Procedure
Follow the Pressure Relief
Procedure whenever you see this
symbol.
This equipment stays pressurized until
pressure is manually relieved. To help
prevent serious injury from pressurized
fluid, such as skin injection, splashing fluid
and moving parts, follow the Pressure Relief Procedure when you stop
spraying and before cleaning, checking,
or servicing the equipment.
1.Engage trigger lock.
2.Turn gas engine or electric motor
ON/OFF switch to OFF. Unplug power
cord to electric motor.
3.Move pump valve to OFF and turn
pressure control knob fully
counterclockwise to lowest setting.
4.Disengage trigger lock. Hold metal part
of gun firmly to side of grounded metal
pail, and trigger gun to relieve pressure.
5.Engage gun trigger lock.
6.Turn prime valve down to DRAIN
position. Leave prime valve down until
ready to spray again.
7.If you suspect the spray tip or hose is
clogged or that pressure has not been
fully relieved:
a.VERY SLOWLY loosen tip guard
retaining nut or hose end coupling to
relieve pressure gradually.
b.Loosen nut or coupling completely.
c.Clear hose or tip obstruction.
334606C15
Setup
WLE
ti18812a
ti7529a
OI
OFF
ON
ti18193a
ti5387a
ti5389a
ti5382a
ti5384a
ti18192a
Setup
Change Gas Engine or
Electric Motor
1Turn motor OFF and unplug or turn
engine switch OFF. Loosen belt guard
knob and motor clamp. Perform
Pressure Relief Procedure, page 15.
5.Standard Series: Screw inlet strainer to
bottom of suction hose and hand tighten
securely.
6.When spraying texture, remove inlet
strainer and filter bowl screen.
3.Engage gun trigger lock.
ti22700a
4.Remove Tip Guard.
334606C17
Setup
Safe Range (cold)
ti5243a
ti18197a
$SSUR[LPDWH
)LOO/HYHO
WLD
FROG
WLD
ti5242a
7.Fill throat packing nut with TSL to
prevent premature packing wear. Do this
each time you spray.
8.Check engine oil level.
9.Fill fuel tank.
10. Check hydraulic oil level. Add only Graco
Hydraulic Oil, ISO Grade 46, 169236 (5
gallon/18.9 liter) or 207428 (1 gallon/3.8
liter). Hydraulic tank capacity is 1.25
gallon (4.75 liters).
11. Attach sprayer grounding clamp to earth
ground.
18334606C
Startup (Gas Models)
ti9692a
WLE
ti9686a
ti5248a
ti5249a
ti5250a
ti5262a
Startup (Gas Models)
1.Place displacement pump in grounded
metal pail partially filled with flushing
fluid. Attach ground wire to pail and to
earth ground.
2.Turn prime valve down to DRAIN
position. Turn pressure control
counterclockwise to lowest pressure.
4.Start engine.
a.Move fuel valve to open.
b.Move choke to closed.
c.Set throttle to fast.
3.Set hydraulic pump valve OFF.
d.Set engine switch to ON.
334606C19
Startup (Gas Models)
ti5263a
ti5264a
ti5251a
ti9687a
15
SEC
WLE
ti18198a
FLUSH
WLD
e.Pull starter rope.
f.After engine starts, move choke to
open.
g.Set throttle to desired setting.
5.Increase pressure enough to start
hydraulic motor stroking and allow fluid
to circulate for 15 seconds; turn pressure
down, turn prime valve horizontal.
6.Disengage spray gun trigger lock.
7.Hold gun against grounded metal
flushing pail. Trigger gun and increase
fluid pressure slowly until pump runs
smoothly. Release trigger and allow
sprayer to build pressure. Engage
trigger lock.
h.Set hydraulic pump valve ON
(hydraulic motor is now active).
20334606C
High-pressure spray is able to inject toxins
ti9695a
into the body and cause serious bodily
injury. Do not stop leaks with hand or rag.
8.Inspect for leaks. If leaks occur, turn
sprayer OFF immediately. Perform
Pressure Relief Procedure, page 15.
Tighten leaky fittings. Repeat Startup
procedure steps 2-8. If no leaks,
continue to trigger gun until system is
thoroughly flushed.
9.Place siphon tube in paint pail.
Startup (Gas Models)
10. Trigger gun again into flushing fluid pail
until paint appears.
FLUSH
WLD
11. Assemble Tip and Guard, page 24.
334606C21
Startup (Electric Models)
ti9692a
WLE
ti9686a
ti18704a
ti18691a
OI
I
O
ti18419a
ti9687a
Startup (Electric Models)
1.Place displacement pump in grounded
metal pail partially filled with flushing
fluid. Attach ground wire to pail and to
earth ground.
2.Turn prime valve down. Turn pressure
control counterclockwise to lowest
pressure.
4.Plug cord into outlet.
For three phase electric motors: If red
phase sequence light is on, remove plug
from outlet and turn phase sequence
screw 180°.
5.Turn motor ON.
3.Set hydraulic pump valve OFF.
6.Set hydraulic pump valve ON (hydraulic
motor is now active).
22334606C
7.Increase pressure enough to start
15
SEC
WLE
ti18198a
FLUSH
WLD
ti9695a
hydraulic motor stroking and allow fluid
to circulate for 15 seconds; turn pressure
down, turn prime valve horizontal.
8.Take spray gun trigger safety OFF.
9.Hold gun against grounded metal
flushing pail. Trigger gun and increase
fluid pressure slowly until pump runs
smoothly
Startup (Electric Models)
High-pressure spray is able to inject toxins
into the body and cause serious bodily
injury. Do not stop leaks with hand or rag.
10. Inspect fittings for leaks. If leaks occur,
turn sprayer OFF immediately. Perform
Pressure Relief Procedure, page 15.
Tighten leaky fittings. Repeat Startup
procedure steps 2-8. If no leaks,
continue to trigger gun until system is
thoroughly flushed.
11. Place displacement pump in paint pail.
12. Trigger gun again into flushing fluid pail
until paint appears.
1.Spray test pattern. Increase pressure to
eliminate heavy edges. Use smaller tip
size if pressure adjustment can not
eliminate heavy edges.
2.Hold gun perpendicular, 10-12 in. (25-30
cm) from surface. Spray back and forth.
Overlap by 50%. Trigger gun after
moving and release before stopping.
2.Engage trigger lock. Return Switch Tip to
original position. Disengage trigger lock
and continue spraying.
1.Make sure hose is routed through hose
guide.
2.Lift and turn pivot lock 90° to unlock hose
reel. Pull on hose to remove it from hose
reel.
3.Pull reel handle down and turn clockwise
to reel in hose.
Hose Reel
(ProContractor Series only)
4.NOTE: The hose reel can be locked into
two positions: Usage and Storage.
To avoid injury, keep your head clear of
hose reel while winding up hose.
334606C25
Clean Up
ti8687a
21
WLD
OI
I
O
ti25161a
OFF
ON
ti5271b
PAINT
ti5272a
ti9692a
Clean Up
1.Perform Pressure Relief Procedure,
page 15.
2.Remove Guard and SwitchTip.
3.Remove displacement pump from paint
and place in flushing fluid. Use water for
water-based paint and mineral spirits for
oil based paint.
4.Turn motor switch ON or turn engine ON
and start engine. Turn hydraulic pump
valve ON. Turn prime valve forward to
SPRAY position.
5.Hold gun against pail. Disengage trigger
lock. Turn pressure control up until motor
begins to drive pump. Trigger gun until
flushing fluid appears.
26334606C
Clean Up
WLE
ti8692a
ti2776a
ti25424a
ti18418a
ti9694a
6.Move gun to waste pail, hold gun against
pail, trigger gun to thoroughly flush
system. Release trigger and engage
trigger lock.
7.While continuing to trigger gun, turn
prime valve down. Then release gun
trigger. Allow flushing fluid to circulate
until fluid comes out of drain tube clear.
8.Raise displacement pump above
flushing fluid and run sprayer for 15 to 30
seconds to drain fluid. Turn hydraulic
valve OFF. Turn engine OFF or turn
electric motor OFF and unplug.
9.Engage trigger lock. Remove filters from
gun and sprayer, if installed. Clean and
inspect. Reinstall filters.
ti15018a
10. Unscrew and remove inlet strainer.
Clean and replace strainer if necessary.
11. If flushing with water, flush again with
mineral spirits, or Pump Armor, to leave
a protective coating to prevent freezing
or corrosion.
12. Wipe sprayer, hose and gun with a rag
soaked in water or mineral spirits.
334606C27
Maintenance
Maintenance
NOTE: For detailed engine maintenance and
specifications, refer to separate Honda
Engines Owner's Manual, supplied.
DAILY: Check engine oil level and fill as
necessary.
DAILY: Check hydraulic oil level and fill as
necessary.
DAILY: Check hose for wear and damage.
DAILY: Check gun trigger lock for proper
operation.
DAILY: Check prime/drain valve for proper
operation.
DAILY: Check and fill the gas tank.
DAILY: Check that displacement pump is
tight.
DAILY: Check level of Throat Seal Liquid
(TSL) in displacement pump packing nut. Fill
nut, if necessary. Keep TSL in nut to help
prevent fluid buildup on piston rod and
premature wear of packings and pump
corrosion.
AFTER THE FIRST 20 HOURS OF
OPERATION: Drain engine oil and refill with
WEEKLY: Remove engine air filter cover and
clean element. Replace element, if
necessary. If operating in an unusually dusty
environment: check filter daily and replace, if
necessary.
Replacement elements can be purchased
from your local HONDA dealer.
WEEKLY/DAILY: Remove any debris or
media from hydraulic rod.
AFTER EACH 100 HOURS OF
OPERATION: Change engine oil. Reference
Honda Engines Owner's Manual for correct
oil viscosity.
SEMI-ANNUALLY: Check belt wear.
Replace if necessary.
YEARLY OR 2000 HOURS: Replace
hydraulic oil and filter with Graco hydraulic oil
169236 (5 gallon/20 liter) or 207428 (1
gallon/3.8 liter) and filter 116909.
Replace belt.
SPARK PLUG: Use only BPR6ES (NGK) or
W20EPR-U (NIPPONDENSO) plug. Gap
plug to 0.028 to 0.031 in. (0.7 to 0.8 mm). use
spark plug wrench when installing and
removing plug.
28334606C
Troubleshooting
Troubleshooting
ProblemCauseSolution
Gas engine pulls hard (won’t
start)
Gas engine does not startSwitch OFF, low oil, no gasolineConsult engine manual
Gas engine does not work
properly
Electric motor does not start
starts slowly
334606C29
Hydraulic pressure is too highTurn hydraulic pressure knob
Fuel shut off valve closedOpen fuel shut off valve
Faulty engineConsult engine manual
ElevationRefer to Engine Repair Kit, 4.0
No powerCheck power source; check
Cord not connected to power
source
Switch OFF1 phase motors: Turn on/off
Incorrect power source
Incorrect amp setting on motor
starter (3 phase motor only)
Over current switch has tripped
Hydraulic pressure is too high
counterclockwise to lowest
setting
hp - 288678 / 5.5 hp - 248943 /
6.5 hp - 248944 / 9.0 hp 248945
circuit breakers and/or fuses.
Reset/replace as required.
Connect plug to receptacle
(grounded with properly sized
circuit breaker and/or fuses).
switch to ON.
3 phase motors: Push ON
switch.
Have a certified electrician or
authorized Graco Repair Center
evaluate and repair.
See Technical Data, pages
60-63.
NOTE: If using the EH300DI
sprayer, the generator must be
sized for 15 kW output
minimum.
Have a certified electrician or
authorized Graco Repair Center
evaluate and repair.
See Technical Data, pages
60-63.
Have a certified electrician or
authorized Graco Repair Center
evaluate and repair.
See Technical Data, pages
60-63.
Turn hydraulic pressure knob
counter clockwise to lowest
setting.
Troubleshooting
ProblemCauseSolution
Electric motor does not work
properly
Gas engine / electric motor
operates but displacement
pump does not operate
Incorrect power sourceHave a certified electrician or
Low voltage to motor
3 phase motors: A phase of
three phase power has open
circuit
Faulty motor
Hydraulic pump valve is OFF
Pressure setting too low
Displacement pump outlet filter
(if used) is dirty or clogged
Tip or tip filter (if used) is
clogged
Hydraulic fluid too lowShut off sprayer. Add fluid*.
Belt is off pulley, worn or brokenReplace. See Repair manual.
Hydraulic pump worn or
damaged
Dried paint seized paint pump
rod
Hydraulic motor not shiftingSet pump valve OFF. Turn
For 3 Phase electric motor
only: Red phase sequence light
is ON, indicating motor rotating
in the wrong direction
authorized Graco Repair Center
evaluate and repair.
See Technical Data, pages
60-63.
Have a certified electrician or
authorized Graco Repair Center
evaluate and repair.
See Technical Data, pages
60-63.
Have a certified electrician or
authorized Graco Repair Center
evaluate and repair.
See Technical Data, pages
60-63.
Have a certified electrician or
authorized Graco Repair Center
evaluate and repair.
See Technical Data, pages
60-63.
Set hydraulic pump valve ON.
Increase pressure, page 20.
Clean the filter.
Remove tip and/or filter and
clean.
Bring sprayer to Graco
distributor for repair.
Service pump. See manual
334654
pressure down. Turn engine
OFF. Pry rod up or down until
hydraulic motor shifts. See
Repair manual.
Remove plug from receptacle
and rotate plug phase screw.
See Operation manual.
30334606C
Troubleshooting
PROBLEMCAUSESOLUTION
Displacement pump operates,
but output is low on upstroke
Displacement pump operates
but output is low on downstroke
and/or on both strokes
Paint leaks and runs over side of
wet-cup
Excessive leakage around
hydraulic motor piston rod wiper
Fluid delivery is lowPressure setting too lowIncrease pressure, see
Sprayer overheatsPaint build up on hydraulic
Spitting from gunAir in fluid pump or hoseCheck for loose connections on
*Check hydraulic fluid level often. Do no allow it to become too low. Use only Graco approved hydraulic fluid, page 18.
Piston ball check not seating
properly
Piston packings worn or
damaged
Piston packings worn or
damaged
Intake valve ball check not
seating properly
Displacement pump air leak
Loose wet-cup
Throat packings worn or
damaged
Piston rod seal worn or
damaged
Displacement pump outlet filter
(if used) is dirty or clogged
Hydraulic motor is worn or
damaged
Large pressure drop in fluid
hose
components
Oil level is lowFill with oil. See Operation
Inlet to hydraulic pump
pulley/cooling fan is obstructed
Inlet to 3 phase electric motor
cooling fan is obstructed.
Fluid supply is low or emptyRefill supply container.
Air in hydraulic linesBleed lines. See Repair manual.
Service piston ball check. See
manual 334654
Replace packings. See manual
334654
Tighten packing nut or replace
packings. See manual 334654
Service intake valve ball check.
See manual 334654
Tighten wet-cup enough to stop
leakage.
Replace packings. See manual
334654
Replace these parts. See
Repair manual.
Operation manual.
Clean filter.
Bring sprayer to Graco
distributor for repair.
Use larger diameter or shorter
hose.
Clean hydraulic components.
manual.
Remove obstructions.
Remove obstructions.
siphon assembly, tighten, then
reprime pump.
334606C31
Standard Series Pump
ti25423a
ti2272c
ti2272b
ti2272d
Standard Series Pump
Removal
See pump manual 334654 for pump repair.
1.Flush pump.
2.Perform Pressure Relief Procedure,
page 15.
3.Remove strainer and paint hose.
4.Push retaining ring up; push out pin.
5.Loosen jam nut. Unscrew pump.
Installation
NOTICE
If pump jam nut loosens during operation,
the threads of the bearing housing and
drive train will be damaged. Tighten jam
nut as specified.
1.Screw jam nut to bottom of pump
threads. Screw pump completely into
manifold. Unscrew pump from manifold
until pump outlet aligns with hose. Hand
tighten jam nut, then tap 1/8 to 1/4 turn
with hammer.
32334606C
ProContractor Series Pump
ti18418b
ti8828a
ti2272e
ti2272f
If pin is loose, parts could break off and
project through the air, resulting in serious
injury or property damage. Make sure pin is
properly installed.
2.Slowly pull engine starter rope until
pump rod pin hole is aligned with
hydraulic rod hole. Push pin into hole.
Push retaining ring into groove.
3.Fill packing nut with Graco TSL.
ProContractor
Series Pump
Removal
See pump manual 334654 for pump repair.
1.Flush pump.
2.Perform Pressure Relief Procedure,
page 15.
3.Remove paint hose fitting and paint hose
from pump fitting.
334606C33
ProContractor Series Pump
ti8829a
ti8830a
ti8831a
ti8833a
ti8832a
ti8834a
4.Slide coupler cover up to fully expose rod
couplers.
5.Remove rod couplers.
6.Remove pin.
7.Open clamp.
8.Remove pump from unit.
Installation
1.If needed, place pump rod in adjustment
casting and pull pump to extend rod.
NOTE: Support pump with your hand before
opening t-handle.
NOTE: Under voltage release coil in motor starter for EH300DI will not energize if voltage is less than 85%
of listed voltage in Technical Data table.
Under voltage release coil in motor starter for EH300DI will de-energize and sprayer will stop if voltage drops
to 85% of rated nominal voltage. Voltage will need to be increased and sprayer will need to be restarted.
NOTE: To operate the EH300DI (24M056) sprayer with a generator, the generator must be sized for 5 kW
output (minimum).
Mounting Screw (4),
Socket Cap Screw 1in
3/8-16 UNC
Paint Outlet,
3/8-18 NPT Male
Paint Suction Fitting,
1.312-12 UN-2A Male
GH130 OEM
GH200 OEM
GH230/300 OEM
68334606C
Graco Standard Warranty
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing
its name to be free from defects in material and workmanship on the date of sale to the original purchaser
for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will,
for a period of twelve months from the date of sale, repair or replace any part of the equipment
determined by Graco to be defective. This warranty applies only when the equipment is installed,
operated and maintained in accordance with Graco’s written recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction,
damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or
improper maintenance, negligence, accident, tampering, or substitution of non-Graco component parts.
Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco
equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper
design, manufacture, installation, operation or maintenance of structures, accessories, equipment or
materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an
authorized Graco distributor for verification of the claimed defect. If the claimed defect is verified, Graco
will repair or replace free of charge any defective parts. The equipment will be returned to the original
purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material
or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of
parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY
OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above.
The buyer agrees that no other remedy (including, but not limited to, incidental or consequential
damages for lost profits, lost sales, injury to person or property, or any other incidental or consequential
loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the
date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IN CONNECTION WITH
ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED
BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose,
etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with
reasonable assistance in making any claim for breach of these warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from
Graco supplying equipment hereunder, or the furnishing, performance, or use of any products or other
goods sold hereto, whether due to a breach of contract, breach of warranty, the negligence of Graco, or
otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents,
notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or
indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la rédaction du
présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés,
donnés ou intentés, à la suite de ou en rapport, directement ou indirectement, avec les procédures
concernées.
334606C69
Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the
nearest distributor.
All written and visual data contained in this document reflects the latest product information available at
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 334606
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2014, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
the time of publication.
Graco Headquarters: Minneapolis
www.graco.com
Revision C, April 2015
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