INSTRU
CTIO
N
M
AN
UAL
PART NO. A00543 Rev. 0
Copyright © 2004 Delta Machinery
ESPAÑOL: PÁGINA 17
FRANÇAIS: PAGE 33
To learn more about DELTA MACHINERY
visit our website at: www.deltamachinery.com.
For Parts, Service, Warranty or other Assistance,
please call 1-866-422-4286
11 Horsepower
Pressure Washer with
12600 Cleaning Units
(Model DTH3635)
2- ENG
A00543
IMPORTANT SAFETY INSTRUCTIONS
Do not operate this unit until you have read and understand this
Operators Manual and the Engine Owners Manual for Safety,
Operation, and Maintenance Instructions.
RISK OF EXPLOSION OR FIRE
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
• Spilled gasoline and it’s vapors can become ignited from cigarette sparks,
electrical arcing, exhaust gases, and hot
engine components such as the muffler.
• Shut off engine and allow it to cool before
adding fuel to the tank.
• Use care in filling tank to avoid spilling fuel.
Move pressure washer away from fueling area
before starting engine.
• Heat will expand fuel in the tank which
could result in spillage and possible fire
explosion.
• Keep maximum fuel level ½” below top of
tank to allow for expansion.
• Operating the pressure washer in an explosive environment could result in a fire.
• Operate and fuel equipment in well ventilated
areas free from obstructions. Equip areas with
fire extinguisher suitable for gasoline fires.
READ AND SAVE THESE INSTRUCTIONS
This product may not be equipped with a spark arresting muffler. If
the product is not equipped and will be used around flammable materials, or on land covered with materials such as agricultural crops, forest, brush,
grass, or other similar items, then an approved spark arrester must be installed and is
legally required in the state of California. It is a violation of California statutes section
130050 and/or sections 4442 and 4443 of the California Public Resources Code, unless
the engine is equipped with a spark arrester, as defined in section 4442, and
maintained in effective working order. Spark arresters are also required on some U.S.
Forest Service land and may also be legally required under other statutes and ordinances.
Engine exhaust contains chemicals known, in certain quantities, to
cause cancer, birth defects or other reproductive harm.
CONSUMER SAFETY INFORMATION
SAFETY GUIDELINES - DEFINITIONS
Indicates an imminently
hazardous situation
which, if not avoided, will result in death
or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, could result in
death or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, may result in minor
or moderate injury.
Used without the safety
alert symbol indicates a
potentially hazardous situation which, if not
avoided, may result in property damage.
This manual contains information that is important for you to know and understand. This
information relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS.
To help you recognize this information, we use the symbols below. Please read the manual and
pay attention to these symbols.
3- ENG
A00543
• Materials placed against or near the pressure washer can interfere with its proper
ventilation features causing overheating
and possible ignition of the materials.
• Never operate pressure washer in an area
containing dry brush or weeds.
• Muffler exhaust heat can damage painted
surfaces, melt any material sensitive to
heat (such as siding, plastic, rubber, or
vinyl), and damage live plants.
• Always keep pressure washer a minimum of
four feet away from surfaces (such as houses,
automobiles, or live plants) that could be damaged from muffler exhaust heat.
• Improperly stored fuel could lead to accidental ignition. Fuel improperly secured
could get into the hands of children or
other unqualified persons.
• Store fuel in an OSHA approved container, in
a secure location away from work area.
• Use of acids, toxic or corrosive chemicals,
poisons, insecticides, or any kind of flammable solvent with this product could result in serious injury or death.
• Do not spray flammable liquids.
• Breathing exhaust fumes will cause serious
injury or death!
• Operate pressure washer in a well ventilated
area. Avoid enclosed areas such as garages,
basements, etc.
• Never operate unit in a location occupied by
humans or animals.
• Some cleaning fluids contain substances
which could cause injury to skin, eyes, or
lungs.
• Use only cleaning fluids specifically recommended for high pressure washers. Follow
manufacturers recommendations. Do not
use chlorine bleach or any other corrosive
compound.
RISK TO BREATHING
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
RISK OF EXPLOSION OR FIRE (continued)
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
• Your washer operates at fluid pressures
and velocities high enough to penetrate
human and animal flesh, which could
result in amputation or other serious injury.
Leaks caused by loose fittings or worn or
damaged hoses can result in injection
injuries. DO NOT TREAT FLUID
INJECTION AS A SIMPLE CUT! See a
physician immediately!
• Never place hands in front of nozzle.
• Direct spray away from self and others.
• Make sure hose and fittings are tightened
and in good condition. Never hold onto the
hose or fittings during operation.
• Do not allow hose to contact muffler.
• Never attach or remove wand or hose
fittings while system is pressurized.
RISK TO FLUID
INJECTION
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
• Injuries can result if system pressure is not
reduced before attempting maintenance or
disassembly.
• To relieve system pressure, shut off engine,
turn off water supply, and pull gun trigger
until water stops flowing.
• Use only hoses and accessories rated for
pressure higher than your pressure
washer's PSI.
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A00543
• Contact with hot surfaces, such as
engines exhaust components, could
result in serious burn.
• During operation, touch only the control
surfaces of the pressure washer. Keep
children away from the pressure washer at all
times. They may not be able to recognize the
hazards of this product.
• Spray directed at electrical outlets or
switches, or objects connected to an
electrical circuit, could result in a fatal
electrical shock.
• Unplug any electrically operated product
before attempting to clean it. Direct spray
away from electric outlets and switches.
RISK OF
ELECTRICAL SHOCK
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
RISK OF HOT
SURFACES
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
• Do not use acids, gasoline, kerosene, or
any other flammable materials in this
product. Use only household detergents,
cleaners and degreasers recommended for
use in pressure washers.
• Wear protective clothing to protect eyes
and skin from contact with sprayed
materials.
• Use of acids, toxic or corrosive chemicals,
poisons, insecticides, or any kind of flammable solvent with this product could result in serious injury or death.
RISK OF
CHEMICAL
BURN
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
• Fuel or oil can leak or spill and could
result in fire or breathing hazard, serious
injury or death can result. Fuel or oil leaks
will damage carpet, paint or other
surfaces in vehicles or trailers.
• If pressure washer is equipped with a fuel
shut-off valve, turn the valve to the off
position before transporting to avoid fuel
leaks. If pressure washer is not equipped
with a fuel shut-off valve, drain the fuel from
tank before transporting. Only transport fuel
in an OSHA approved container. Always
place pressure washer on a protective mat
when transporting to protect against damage to vehicle from leaks. Remove pressure
washer from vehicle immediately upon arrival
at your destination.
RISK OF INJURY OR PROPERTY DAMAGE
WHEN TRANSPORTING OR STORING
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
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A00543
• Reactive force of spray will cause
gun/wand to move, and could cause the
operator to slip or fall, or misdirect the
spray. Improper control of gun/wand can
result in injuries to self and others.
• Do not overreach or stand on an unstable
support. Grip gun/wand firmly with both
hands. Expect the gun to kick when triggered.
• If proper starting procedure is not
followed, engine can kickback causing
serious hand and arm injury.
• If engine does not start after two pulls,
squeeze trigger of gun to relieve pump
pressure. Pull starter cord slowly until
resistance is felt. Then pull cord rapidly
to avoid kickback and prevent hand or
arm injury.
• The spray gun/wand is a powerful cleaning tool that could look like a toy to a
child.
• Keep children away from the pressure
washer at all times.
RISK OF UNSAFE OPERATION
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
• Unsafe operation of your pressure washer
could lead to serious injury or death to
you or others.
• Do not use chlorine bleach or any other
corrosive compound.
• Become familiar with the operation and controls of the pressure washer.
• Keep operating area clear of all persons,
pets, and obstacles.
• Do not operate the product when fatigued
or under the influence of alcohol or drugs.
Stay alert at all times.
• Never defeat the safety features of this
product.
• Do not operate machine with missing,
broken, or unauthorized parts.
• Never leave wand unattended while unit is
running.
RISK OF INJURY FROM SPRAY
HAZARD
WHAT CAN HAPPEN
HOW TO PREVENT IT
• High velocity fluid spray can cause
objects to break, propelling particles at
high speed.
• Light or unsecured objects can become
hazardous projectiles.
• Always wear ANSI approved Z87 safety
glasses.Wear protective clothing to protect
against accidental spraying.
• Never point wand at, or spray people or
animals.
• Always secure trigger lock when wand is not
in service to prevent accidental operation.
• Never permanently secure trigger in pull
back (open) position.
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A00543
ASSEMBLY INSTRUCTIONS
NOTE: The high pressure pump was
filled with oil at the factory. There is no
need to add oil at this time, see the
Maintenance section of this manual
for Maintenance information.
5. Connect wand to gun. Tighten
securely.
4. Attach high
pressure hose to
gun. Tighten
securely.
1. Place the nozzle holder onto the
panel (located on the handle
assembly) and push each nozzle
holder into place.
2. Remove five colored quick
connect nozzles from plastic bag
and insert them into correct
grommet on the nozzle holder.
NOTE: Nozzles are color coded to
match colored nozzles on panel.
3. Place handle assembly onto frame,
depress the snap buttons, and slide
the handle assembly onto the frame
until snap buttons snap into place.
CARTON CONTENTS
Bagged Parts
Nozzle
Cleaning
Tool
Engine Frame
and Wheel
Assembly
High Pressure
Hose
Chemical
Hose
Spray Gun
Quick Connect Spray Wand
Quick
Connect
Nozzles
Nozzle
Holder
The shipping plug
must be removed
and replaced with the dipstick/oil
plug before operating pressure
washer.
7. Using a 17 mm
wrench, remove
shipping plug from
pump by turning it
counterclockwise.
Discard plug.
8. Remove dipstick/oil plug from
plastic bag and install into pump,
tighten securely.
Engine
Manual
Handle
English/
Spanish
Operator’s
Manual
Engine
Oil
6. Add engine oil (supplied) to engine.
Refer to Engine Owners Manual
supplied by engine manufacturer for
correct procedure.
NOTE: There will be a slight amount of
oil in the engine from factory testing.
7- ENG
A00543
OPERATING INSTRUCTIONS
BASIC ELEMENTS OF A
PRESSURE WASHER
High Pressure Pump: Increases the
pressure of the water supply.
Engine: Drives the high pressure
pump.
High Pressure Hose: Carries the
pressurized water from the pump to
the gun and spray wand.
Spray Gun: Connects with spray wand
to control water flow rate, direction,
and pressure.
Quick Connect Spray Wand: Allows
the user to quickly change out highpressure nozzles. See How To Use
Spray Wand instructions in this section.
Chemical Hose: Feeds cleaning
agents into the pump to mix with the
water. See How To Apply
Chemicals/Cleaning Solvents
instructions in this section.
Compare the illustrations with your unit to familiarize yourself with the location of
various controls and adjustments. Save this manual for future reference.
Engine
High
Pressure
Hose
Spray
Gun
Quick
Connect
Spray Wand
BASIC ELEMENTS OF AN
ENGINE
Refer to the engine manual for location
and operation of engine controls.
Choke Control: Opens and closes
carburetor choke valve.
Starter Grip: Pulling starter grip
operates recoil starter to crank engine.
Fuel Valve Lever: Opens/closes
connection between fuel tank and
carburetor.
Engine Switch: Enables and disables
ignition system.
High
Pressure
Pump
PRESSURE WASHER
TERMINOLOGY
PSI: Pounds per Square Inch. The unit
of measure for water pressure. Also
used for air pressure, hydraulic
pressure, etc.
GPM: Gallons Per Minute. The unit of
measure for the flow rate of water.
CU: Cleaning Units. GPM x PSI = CU.
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A00543
PRESSURE WASHER
OPERATING FEATURES
PRESSURE ADJUSTMENTS
The pressure setting is preset at the
factory to achieve optimum pressure
and cleaning. If you need to lower the
pressure, it can be accomplished by
these methods.
1. Back away from the surface to
be cleaned. The further away you
are, the less the pressure will be
on the surface to be cleaned.
2. Change to the 40º nozzle -
(white) this nozzle delivers a less
powerful stream of water and a
wider spray pattern.
DO NOT attempt to
increase pump
pressure. A higher pressure setting
than the factory set pressure may
damage pump.
PRESSURE WASHER
TERMINOLOGY (continued)
Bypass Mode: Allows water to
re-circulate within pump when the gun
trigger is not pulled.
Allowing the unit to
run for more than
two minutes without the gun trigger
pulled could cause overheating and
damage to the pump.
Thermal Relief Valve:
When the temperature
inside the pump rises
too high the valve will
open and release a
gush of water in an
effort to lower the
temperature inside the
pump. The valve will then close.
Chemical Injection System: Mixes
cleaners or cleaning solvents with the
water to improve cleaning
effectiveness.
Water Supply: All pressure washers
must have a source of water. The
minimum requirements for a water
supply are 20 PSI and 5 gallons per
minute.
3. Adjust the pressure regulator
on the pump.
Turn the pressure
regulator knob
counterclockwise
to lower pressure.
Refer to the
illustrations to identify your pressure regulator. Once you have finished using your pressure washer,
return the pressure regulator to its
original position by turning it
clockwise.
DO NOT try to turn
pressure regulator
knob past the built-in stop or damage
to pump will result.
Pressure
Adjustment
Knob
Thermal
Relief
Valve
9- ENG
A00543
READ AND UNDERSTAND ALL WARNINGS BEFORE STARTING UNIT
When using the high pressure setting, DO NOT allow the
high pressure spray to come in contact with unprotected skin,
eyes, or with any pets or animals. Serious injury can occur.
Your washer operates at fluid pressures and velocities high enough to penetrate
human and animal flesh, which could result in amputation or other serious injury.
Leaks caused by loose fittings or worn or damaged hoses can result in injection
injuries. DO NOT TREA
T FLUID INJECTION AS A SIMPLE CUT! See a
physician immediately!
NEVER fill fuel tank when engine is running or hot. Do not
smoke when filling fuel tank.
NEVER
fill fuel tank completely. Fill tank to 1/2" below bottom of filler neck to
provide space for fuel expansion. Wipe any fuel spillage from engine and
equipment before starting engine.
NEVER
run engine indoors or in enclosed, poorly ventilated areas. Engine
exhaust contains carbon monoxide, an odorless and deadly gas.
DO NOT
let hoses come in contact with very hot engine muffler during or
immediately after use of your pressure washer. Damage to hoses from contact
with hot engine surfaces will NOT be covered by warranty.
NEVER
pull water supply hose to move pressure washer. This
could damage hose and/or pump inlet.
DO NOT
use hot water, use cold water only.
NEVER
turn water supply off while pressure washer engine is running or
damage to pump will result.
DO NOT
stop spraying water for more than two minutes at a time. Pump
operates in bypass mode when spray gun trigger is not pressed. If pump is left
in bypass mode for more than two minutes internal components of the pump
can be damaged.
If you do not understand these precautions, please call 1-866-422-4286 to
speak to a service representative for further instructions.
TO USE SPRAY WAND
The nozzles for the spray wand are stored in nozzle holder on the panel
assembly. Colors on the panel identify nozzle location and spray pattern. See
chart to choose the correct nozzle for the job to be performed.
Nozzle Color Red Yellow Green White Black
Spray Pattern
0º 15º 25º 40º low pressure
Uses
powerful
pinpoint for
very intense
cleaning
intense
cleaning of
small areas
intense
cleaning of
larger areas
covers wide
areas of
cleaning
applies
cleaning
solutions
Surfaces *
Metal or
concrete
DO NOT use
on wood
metal,
concrete, or
wood
metal,
concrete, or
wood
metal,
concrete,
wood, or vinyl
metal,
concrete,
wood, or vinyl
* The high pressure spray from your pressure washer is capable of
causing damage to surfaces such as wood, glass, automobile paint,
auto striping and trim, and delicate objects such as flowers and shrubs. Before spraying,
check the item to be cleaned to assure yourself that it is strong enough to resist damage
from the force of the spray.
Changing Nozzles on Spray Wand
DO NOT attempt to
change nozzles
while pressure washer is running.
Turn engine off before changing
nozzles.
1. Pull quick connect coupler back
and insert nozzle.
2. Release quick connect coupler
and twist nozzle to make sure it is
secure in coupler.
Risk Of Injury.
Ensure nozzle is
completely inserted in QC socket,
and QC snap ring is fully engaged
(forward) before squeezing gun
trigger.
Risk of injection or
injury to person. Do
not direct discharge stream toward
persons, unprotected skin, eyes, or
any pets or animals. Serious injury
can occur.
10- ENG
A00543
STARTING
Prior to starting, refer to your engine
manual for proper starting
procedure.
1. In a well ventilated outdoor area
add fresh, high quality, unleaded
gasoline with a pump octane
rating of 86 or higher. Do not
overfill. Wipe up spilled fuel before
starting the engine. Refer to
Engine Owners Manual for correct
procedure.
2. Check engine oil level. See
Engine Owners Manual for correct
procedure. NOTE: There will be a
slight amount of oil in the engine
from factory testing.
3. Verify the filter
screen is in
water inlet of
pump. NOTE:
Cone side faces
out.
HOW TO APPLY CHEMICALS
AND CLEANING SOLVENTS
Applying chemicals or cleaning
solvents is a low pressure operation.
NOTE: Use only soaps and chemicals
designed for pressure washer use. Do
not use bleach.
To Apply chemicals:
1. Press chemical
hose onto barbed
fitting located near
high pressure hose
connection of
pump as shown.
Barbed
Fitting
2. Place other end of chemical hose
with filter on it into container holding
chemical/cleaning solution. NOTE:
For every 7 gallons of water
pumped 1 gallon of
chemical/cleaning solution will be
used.
3. Install low pressure (black) nozzle
into quick connect fitting of spray
wand, see How To Use Spray Wand
paragraph in this section.
4. After use of chemicals, place
chemical hose into container of
clean water and draw clean water
through chemical injection system
to rinse system thoroughly. If
chemicals remain in the pump it
could be damaged. Pumps
damaged due to chemicals will not
be covered under warranty.
NOTE: Chemicals and soaps will not
siphon when spray wand is in the high
pressure setting.
Filter Screen
STARTING (continued)
4. Connect water source to pump
inlet. NOTE: Water source must
provide a minimum of 5 gallons per
minute at 20 PSI.
5. Connect high pressure hose to
pump outlet.
6. If applying a chemical or
cleaning solution, see How To
Apply Chemicals/Cleaning
Solvents instructions in this
section.
7. Turn water source on. NOTE:
Failure to do so could cause
damage to the pump.
8. Start engine. See Engine Owners
Manual for correct procedure.
NOTE: When engine rope is
pulled, pressure starts building in
the gun. If the engine does not
start after two pulls, pull the gun
trigger to relieve this pressure.
11- ENG
A00543
High Pressure Hose
Water
Source
9. Depress trigger on gun to start
water flow. NOTE: Stand on a
stable surface and grip
gun/spray wand firmly with both
hands. Expect the gun to kick
when triggered.
10. Release trigger to stop water
flow.
11. Adjust spray for the task being
performed by changing quick
connect nozzle. See How To Use
Spray Wand instructions in this
section.
SHUTTING DOWN
1. After each use, if you have
applied chemicals, place chemical
hose into container of clean water
and draw clean water through
chemical injection system to rinse
system thoroughly. NOTE: Failure
to do so could cause damage to
the pump.
2. Turn engine off. See Engine
Owner’s Manual. NOTE: NEVER
turn the water off with the engine
running.
3. Turn water source off.
4. Pull trigger on spray gun to
relieve any water pressure in hose
or spray gun.
5. See Storage section in this
manual for proper storage
procedures.
MAINTENANCE
When performing
maintenance, you
may be exposed to hot surfaces,
water pressure, or moving parts that
can cause serious injury or death!
Before performing any maintenance
or repair, disconnect spark plug
wire, let engine cool and release all
water pressure. The engine contains
flammable fuel. DO NOT smoke or
work near open flames while
performing maintenance.
To ensure efficient operation and
longer life of your pressure washer, a
routine maintenance schedule should
be prepared and followed. If the
pressure washer is used in unusual
conditions, such as high-temperatures
or dusty conditions, more frequent
maintenance checks will be required.
ENGINE
Consult the Engine Owners Manual for
the manufacturer's recommendations
for any and all maintenance. NOTE:
The frame is equipped with an oil drain
hole to help make changing the engine
oil easier.
12- ENG
A00543
4. Remove the high-pressure nozzle
from the spray wand. Remove any
obstructions with the nozzle
cleaning tool provided and
backflush with clean water.
5. Direct water supply into spray
wand to backflush loosened
particles for 30 seconds.
6. Reassemble the nozzle to the
wand.
7. Reconnect spray wand to gun and
turn on water supply.
8. Start pressure washer and place
spray wand into high pressure
setting to test.
HOW TO CLEAN THE WATER
INLET FILTER
This screen filter should be checked
periodically and cleaned if necessary.
1. Remove filter by
grasping end and
removing it from
water inlet of pump
as shown.
2. Clean filter by flushing it with
water on both sides.
3. Re-insert filter into water inlet of
pump. NOTE: Cone side faces
out.
NOTE: Do not operate pressure
washer without filter properly installed.
HOW TO REMOVE THE
WHEELS
1. Using a 1/8" hex
head wrench
loosen set screw
in hub collar.
2. Slide hub collar
from axle and remove the tire.
To Check Oil:
1. Remove
dipstick/oil
plug from
pump and
wipe clean.
2. Insert
dipstick/oil
plug fully
into pump, then remove it.
3. Oil level is correct when oil covers
the lower 1/2 inch of end of
dipstick/oil plug.
How To Change Pump Oil
1. Loosen dipstick/oil plug.
2. Place a container under the oil
drain plug.
3. Remove oil drain plug.
4. After oil is drained replace oil drain
plug. Tighten securely.
5. Remove dipstick/oil plug and fill with
13.5 oz of 30W non detergent oil.
6. Replace dipstick/oil plug and
tighten securely.
Dipstick/oil plug
PUMP
NOTE: The pump was filled with oil at
the factory.
1. Change pump oil after the first ten
(10) hours of operation and every
fifty (50) hours thereafter.
Oil Drain Plug
NOZZLE CLEANING
If the nozzle becomes clogged with
foreign materials, such as dirt,
excessive pressure may develop. If
the nozzle becomes partially clogged
or restricted, the pump pressure will
pulsate. Clean the nozzle immediately
using the nozzle kit supplied and the
following instructions:
1. Shut off the pressure washer and
turn off the water supply.
2. Pull trigger on gun handle to
relieve any water pressure.
3. Disconnect the spray wand from
the gun.
Filter Screen
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A00543
STORAGE
ENGINE
Consult the Engine Owners Manual for
the manufacturer's recommendations for
storage.
PUMP
The manufacturer recommends using
a pump protector/winterizer when
storing the unit for more than 30 days
and/or when freezing temperatures are
expected. If a pump
protector/winterizer is not available,
*RV antifreeze needs to be run through
the pump as outlined in the steps
below.
NOTE: Using a pump
protector/winterizer or *RV antifreeze is
to provide proper lubrication to the
internal seals of the pump regardless
of temperature or environment.
1. Obtain a funnel, six ounces of
*RV antifreeze, and 16 - 36 inches
of garden hose with a male hose
connector attached to one end.
Use only RV
antifreeze. Any other
antifreeze is corrosive and can
damage pump.
2. Disconnect spark plug wire.
3. Connect length of garden hose
to water inlet of pump.
4. Add *RV antifreeze to hose as
shown.
5. Pull engine starter rope slowly
several times until antifreeze
comes out of high pressure hose
connection of pump.
6. Remove garden hose from water
inlet of pump.
7. Reconnect spark plug wire.
*Windshield washer fluid may also be
used
PRESSURE WASHER
1. Drain all water from high pressure
hose, coil it, and store it in cradle
of the pressure washer handle.
2. Drain all water from spray gun and
wand by holding spray gun in a
vertical position with nozzle end
pointing down and squeezing
trigger. Store in gun holder.
3. Store chemical hose so it is
protected from damage.
4. If space is needed, remove
handles and replace as shown.
14- ENG
A00543
TROUBLE SHOOTING GUIDE
PROBLEM
Engine will not
start (see Engine
Manual for
further engine
troubleshooting)
No or low
pressure
(initial use)
CAUSE
CORRECTION
No fuel.
Add Fuel.
Pressure builds up after two pulls
on the recoil starter or after initial
use.
Squeeze gun trigger to relieve
pressure.
Spark plug wire not attached.
Attach spark plug wire.
Engine ON/OFF switch in OFF
position.
Place engine ON/OFF switch in
ON position.
Choke lever in the “Choke”
position on a “hot” engine or an
engine that has been exposed to
thermal heat for a long period of
time.
Move choke to the “No Choke”
position.
Spray wand not in high pressure. See How to Use Spray Wand
instructions in the Operation
Section.
Low water supply.
Water supply must be at least 5
GPM @ 20 PSI.
Leak at high pressure hose fitting.
Repair leak. Apply sealant tape
if necessary.
Nozzle obstructed.
See Nozzle Cleaning instructions
in the Maintenance section.
Water filter screen clogged. Remove and clean filter.
Defective E-Z start valve.
Check with Authorized Warranty
Service Center (AWSC.)
Air in hose.
Turn off the engine, then the
water source. Disconnect the
water source from the pump inlet
and turn the water source on to
remove all air from the hose.
When there is a steady stream of
water present, turn water source
off. Re-connect water source to
pump inlet and turn on water
source. Squeeze trigger to remove remaining air
Choke lever in the “Choke” position.
Move choke to the “No Choke”
position.
High pressure hose is too long.
Use high pressure hose under
100 feet.
Choke lever in the “No Choke”
position.
Move choke to the “Choke”
position.
Fuel valve closed
Move the fuel valve lever to the
“Open” position.
Low oil
Add required amount of oil.
15- ENG
A00543
Water leaking
at pump
Water leaking at
gun/spray wand
connection
No or low
pressure
(after period of
normal use)
PROBLEM
CAUSE
CORRECTION
Spray wand not in low pressure.
See How to Use Spray Wand
paragraph in the Operation
Section.
Chemical screen not in cleaning
solution.
Clean filter.
Chemical too thick.
Dilute chemical. Chemical should
be the same consistency as water.
Pressure hose is too long
Lengthen water supply hose
instead of high pressure hose.
Chemical build up in chemical
injector.
Have parts cleaned or replaced
by AWSC.
Worn seal or packing
Have replaced by AWSC.
Worn or obstructed valves.
Have replaced by AWSC.
Worn unloader piston.
Have replaced by AWSC.
Worn E-Z start valve.
Check and replace.
Loose hose connection.
Loose connections.
Tighten.
Piston packings worn.
Have replaced by AWSC.
Worn or broken o-rings.
Have replaced by AWSC.
Pump head or tubes damaged
from freezing.
Have replaced by AWSC.
Will not draw
chemicals
Make sure end of chemical hose
is fully submerged into cleaning
solution.
Chemical filter clogged.
Worn or broken o-ring.
Tighten.
Have replaced by AWSC.
Oil leaking at
pump
Oil seals worn. Have replaced by AWSC
Loose drain plug.
Worn drain plug o-ring
Worn fill plug o-ring.
Pump overfilled.
Incorrect oil used.
Vent plug is clogged.
Tighten.
Check and replace.
Check and replace.
Check for correct amount.
Drain and fill with correct amount
and type of oil.
Clean vent plug; blow air through it
to remove any blockage. If problem persists, replace plug.
Nozzle obstructed.
See Nozzle Cleaning paragraph in
the Maintenance section for the
correct procedure.
Pump Pulsates
16- ENG
A00543A00543A00543A00543A00543
WARRANTY
DELTA MACHINERY warrants to the original purchaser that all products covered under this warranty are free
from defects in material and workmanship. Products covered under this warranty include air compressors, air
tools, service parts, pressure washers, and generators, which have the following warranty periods:
3 YEARS - Limited warranty on 2-stage oil-free air compressor pumps that operate at 1725 RPM.
2 YEARS - Limited warranty on oil-lubricated air compressor pumps.
1 YEAR - Limited warranty on all other air compressor components.
2 YEARS - Limited warranty on electric generator alternators.
1 YEAR - Limited warranty on other generator components.
2 YEARS - Limited warranty on pneumatic air tools as described in Delta general catalog.
1 YEAR - Limited warranty on pressure washers used in consumer applications (i.e. personal residential
household usage only).
90 DAY - Pressure washers used for commercial applications (income producing) and service parts.
Delta will repair or replace, at Delta's option, products or components which have failed within the warranty
period. Service will be scheduled according to the normal work flow and business hours at the service center
location, and the availability of replacement parts. All decisions of Delta Machinery with regard to this limited
warranty shall be final.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
RESPONSIBILITY OF ORIGINAL PURCHASER (initial User):
• To process a warranty claim on this product, DO NOT return it to the retailer. The product must be evaluated
by a Delta Authorized Warranty Service Center. For the location of the nearest Delta Authorized Warranty
Service Center call 1-866-422-4286, 24 hours a day, 7 days a week.
• Retain original cash register sales receipt as proof of purchase for warranty work.
• Use reasonable care in the operation and maintenance of the product as described in the Owners Manual(s).
• Deliver or ship the product to the nearest Delta Authorized Warranty Service Center. Freight costs, if any,
must be paid by the purchaser.
• Air compressors with 60 and 80 gallon tanks will be inspected at the site of installation. Contact the nearest
Delta Authorized Warranty Service Center that provides on-site service calls, for service call arrangements.
• If the purchaser does not receive satisfactory results from the Delta Authorized Warranty Service Center, the
purchaser should contact Delta.
THIS WARRANTY DOES NOT COVER:
• Merchandise sold as reconditioned, used as rental equipment, and floor or display models.
• Merchandise that has become damaged or inoperative because of ordinary wear, misuse*, cold, heat, rain,
excessive humidity, freeze damage, use of improper chemicals, negligence, accident, failure to operate the
product in accordance with the instructions provided in the Owners Manual(s) supplied with the product,
improper maintenance, the use of accessories or attachments not recommended by Delta, or unauthorized
repair or alterations.
* An air compressor that pumps air more than 50% during a one hour period is considered misuse because
the air compressor is undersized for the required air demand.
• Repair and transportation costs of merchandise determined not to be defective.
• Costs associated with assembly, required oil, adjustments or other installation and start-up costs.
• Expendable parts or accessories supplied with the product which are expected to become inoperative or
unuseable after a reasonable period of use, including but not limited to sanding disks or pads, saw and shear
blades, grinding stones, springs, chisels, nozzles, o-rings, air jets, washers and similar accessories.
• Merchandise sold by Delta which has been manufactured by and identified as the product of another
company, such as gasoline engines. The product manufacturer's warranty, if any, will apply.
• ANY INCIDENTAL, INDIRECT OR CONSEQUENTIAL LOSS, DAMAGE, OR EXPENSE THAT MAY RESULT
FROM ANY DEFECT, FAILURE OR MALFUNCTION OF THE PRODUCT IS NOT COVERED BY THIS
WARRANTY. Some states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation or exclusion may not apply to you.
• IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, ARE LIMITED TO ONE YEAR FROM THE DATE OF ORIGINAL PURCHASE. Some states do
not allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you.
Jackson, TN USA
1-866-422-4286
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