Airless DP-3400 User manual

Operating Instruction
Product model:DP-3400
Please read and keep this manual, Read carefully before attempting to assemble, install, operate or maintain the
product described. Protect yourself and others by observing all safety information. Failure to comply with instructions
could result in personal injury and/or property damage! Retain instruction for future reference.
www.dpairless.com
DP-3400
5.5 hp 4.0L

Warning
Warning
The following warnings include general safety information for this equipment. Further product specific warnings may
be included in the text 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.
• 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.
• When flammable liquid is sprayed or used for flushing or cleaning, keep sprayer at least 20 feet (6 m)
away from explosive vapors.
• 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 equipment and conductive objects in work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just
a cut, but it is a serious injury that can result in amputation. Get immediate medical attention.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
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.
MOVING PARTS HAZARD
Moving parts can pinch 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 in this manual. Disconnect power or air supply.

WARNING
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.
• For professional use only.
• 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 use hoses to pull equipment.
• Comply with all applicable safety regulations.
PRESSURIZED ALUMINUM PARTS HAZARD
Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids
containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical
reaction and equipment rupture, and result in death, serious injury, and property damage.
SUCTION HAZARD
Never place hands near the pump fluid inlet when pump is operating or pressurized. Powerful suction
could cause serious injury.
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.
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 MSDS’s 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.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe
burns, do not touch hot fluid or equipment. Wait until equipment/fluid has cooled completely.
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
RECOIL HAZARD
Brace yourself; gun may recoil when triggered and cause you to fall, which could cause serious injury.
WARNING

1 Engine controls Commandes moteur Controles del motor
2 Engine ON/OFF switch Bouton MARCHE/ARRÊT
du moteur
Interruptor encendido/apagado
(ON/OFF) del motor
3 Pump On/Off Switch Bouton marche/arrêt de la pompe Interruptor On/Off de la bomba
4 Pressure control Régulation de la pression Dispositivo de control de la presión
5 Prime valve & Filter Vanne d’amorçage et filtre Válvula de cebado y filtro
6 Suction tube Tube d’aspiration Tubo de aspiración
7 Pump Pompe Bomba
8 Drain hose Flexible de vidange Manguera de drenaje
-+
1
1
2
3
4567 8
9
OFF
ON
ON
9 Trigger Lock Verrouillage gâchette Seguro del gatillo

Setup
Setup
1 Connect appropriate Graco
high-pressure hose to
sprayer. Tighten securely.
2 Connect other end of hose
to gun.
3 Tighten securely. 4 Remove tip guard.
Setup
5 Install clean inlet strainer.
Fill throat packing nut with
TSL to extend pump life. Do
this each time you spray
and store.
6 Check engine oil level.
Add SAE 10W-30
(summer) or 5W-30
(winter), if necessary.
See Honda Engines
Owner’s Manual.
7 Fill fuel tank. 8 Attach sprayer grounding
clamp to earth ground.
Approximate
Fill Level
(cold)
Startup
1 Place suction tube and drain
tube 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 counter-
clockwise to lowest
pressure.
3 Set pump switch OFF.
PAINT
FLUSH
/&&

Startup
4 Start engine.
a Move fuel valve to open. b Move choke to closed. c Set throttle to fast. d Set engine switch to ON.
5 Set pump switch ON.
- Pump/clutch is now active -
e Pull starter rope. f After engine starts, move
choke to open.
g Set throttle to desired setting.
/.
6 Increase pressure enough
to start pump stroking and
allow fluid to circulate for
15 seconds; turn pressure
down, turn prime valve
horizontal.
7 Take spray gun trigger safety
OFF.
8 Hold gun against grounded
metal flushing pail. Trigger
gun and increase fluid
pressure slowly until pump
runs smoothly.
Inspect fittings for leaks. Do not
stop leaks with your hand or a rag!
If leaks occur, turn sprayer OFF
immediately. Do Pressure Relief
in Cleanup, 1. - 3. on page 17.
Tighten leaky fittings. Repeat
Startup, 1. - 5. If no leaks, con-
tinue to trigger gun until system is
thoroughly flushed. Proceed to 6.
15 SEC
safety
OFF

Startup
SwitchTip and Guard Assembly
9 Place siphon tube in paint
pail.
10 Trigger gun again into
flushing fluid pail until paint
appears. Assemble tip and
guard, page 15.
1 Put trigger safety ON.
Insert SwitchTip. Insert
seat and OneSeal.
2 Screw assembly onto gun.
Hand tighten.
PAINT FLUSH
safety
ON
Switch
Tip
OneSeal
seat
Spray Test Pattern Clearing Tip Clogs
1 Trigger gun and spray
test pattern. Slowly adjust
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. Use strokes over-
lapped by 50%. Start
gun movement before
triggering gun and release
trigger before stopping gun
movement.
1 Release trigger, put trigger
safety ON. Rotate
SwitchTip. Take trigger
safety OFF and trigger gun
to clear the clog.
2 Put trigger safety ON,
return SwitchTip to original
position, take trigger safety
OFF and continue spraying.
heavy
edges
15 SEC
ti5402a ti5402a

Pressure Relief
PressureRelief
1 Set pump valve OFF.
Turn engine OFF.
2 Turn pressure to lowest
setting. Trigger gun into pail
to relieve pressure.
3 Turn prime valve down. 4 Remove guard and
SwitchTip.
/&&
PAINT
Cleanup
1DoPressure Relief,
page 17.
Unscrew bowl, remove
filter. Assemble without
filter. Clean fliter
2 Clean filter, guard and
SwitchTip in flushing fluid.
3 Remove siphon tube set
from paint and place in
flushing fluid.
Use water for water base
paint and mineral spirits
for oil base paint.
4 Turn engine ON and start
engine.
Set pump valve ON.
Turn prime valve horizontal.
FLUSH
PAINT
FLUSH
/.

Cleanup
5 Hold gun against paint pail.
Take trigger safety OFF.
Turn pressure control up
until motor begins to drive
pump. Trigger gun until
flushing fluid appears.
6 Move gun to flushing pail,
hold gun against pail,
trigger gun to thoroughly
flush system.
Release trigger and put
trigger safety ON.
7 Turnprimevalvedown
and allow flushing fluid to
circulate for approximately
20 seconds to clean drain
tube.
8 Raise siphon tube above
flushing fluid and run
sprayer for 15 to
30 seconds to drain
fluid. Turn pump valve
OFF. Turn engine OFF.
PAINT
FLUSH
20 SEC
/&&
PAINT
FLUSH
Caution: If flushing with water,
do not leave water in sprayer.
Flush again with mineral spirits,
oil or Pump Armor and leave this
protective coating in the sprayer
to help prevent freezing or corro-
sion and increase sprayer life.
9 Close prime valve. Trigger
gun into flushing pail to
purge fluid from hose. Open
prime valve.
10 Install filter into filter bowl.
Make sure plastic center
tube is tightened securely.
Hand tighten filter bowl.
Hand tighten gun handle.
11 Clean tip, guard and gas-
ket with a soft bristle brush
to prevent part failure due
to dried materials. Assem-
ble parts and attach loosely
onto gun.
Wipe sprayer, hose and gun
with a rag soaked in water
or mineral spirits.
Pump Armor
ti2895a
ti5973a
ti5979a
FLUSH
ti5963a
FLUSH