Delco Avenger 1000-3 NG User manual

Avenger
1000-3 NG/LP
2HP - Single Phase
Operators Manual and
Replacement Parts Book
Pressure Washers
Delco Pressure Washers - LIT - AVEN-1000-3 - DEL

Page 2
INTRODUCTION
ThankyouforselectingahighpressurepowerwasherfromDelcoPressureWashers.
Yourpressurewasherhasbeenmanufacturedusingthemostadvancedcompo-
nentsin thepressureindustry.
Whenoperatedproperly,ourequipmenthasbeendesignedandmanufacturedto
give you years of trouble free, reliable use, with a minimal amount of regular
maintenance.
Yourpressurewasherismechanical,aswithallmechanicalequipmentitrequires
properinstallation,operationand maintenanceasoutlinedinthis manual.
TheOperatorsManual hasbeenwrittenforyourbenefit. Foryour safetyandthe
safetyofothers,werecommend you and alloperatorsreadandunderstandthe
contents.
Should you experience any difficulty with your Delco pressure washer, please
contactyournearest DelcoDistributorimmediately.
We are aware of your investment in an Delco pressure washer, therefore, our
primeconcernis thatyoubecomeoneofour“satisfied” owners. Pleasefeelfree
tosendusyour comments andideas.
THANK YOU!!!

Page 3
PRESSURE WASHER LIMITED WARRANTY
1. DELCO Cleaning Systems, LLC warrants its products for a period of one year from the date of pur-
chase, against defects in material and/or workmanship. The warranty covers parts and labor, but excludes
transportation.
2. Normal wear and tear items such as valves, seals, etc., are warranted for the initial 30 days following
purchase by the end-user.
3. The high-pressure hose and accessories (trigger gun, extension/lance/wand and cleaning nozzles) are
warranted for the initial 30 days following purchase by the end-user.
4. The burner coil on all DELCO Cleaning Systems, LLC, hot water pressure washers and steam cleaners
is warranted for five (5) years, excluding abuse due to leaving unit in unheated building, causing coil to
freeze and burst.
5. Parts repaired or replaced under this warranty (except wear items) are warranted for the balance of the
original warranty period or ninety (90) days, whichever is longer. Defective parts replaced under this war-
ranty are the property of DELCO Cleaning Systems, LLC.
6. All warranty service will be performed by a trained technician employed by an DELCO Cleaning Systems,
LLC distributor/dealer. Servicing distributor/dealer will abide by the DELCO Cleaning Systems, LLC,
Service Center Warranty Policy.
7. Warranty does not cover damage caused by freezing, abuse or chemicals. Abuse includes but is not
limited to unauthorized repair, alterations carried out by any entity or individuals other than DELCO Clean-
ing Systems, LLC, authorized service personnel, damage caused by contaminants in the water supply or
operation in a manner which conflicts with instructions found in the Owners Manual.
8. DELCO Cleaning Systems, LLC, and its distributors/dealers disclaim responsibility for any loss of time,
use of equipment, loss of income, or any incidental or consequential damages.
9. Settlement of any warranty claim will be at the sole discretion of DELCO Cleaning Systems, LLC.
Thank You for Purchasing our Products!
Effective March 2007, and supercedes all other warranties.

Page 4
TABLE OF CONTENTS
Operator Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction and Machine Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
How to Prepare the Machine for Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation & Servicing Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
How to Correct Problems in the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Assembly Drawing No. 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Assembly Drawing No. 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Assembly Drawing No. 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Assembly Drawing No. 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Pump Drawing 1000-3NG/LP .................. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Electrical Schematic with shut down timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Electrical Schematic without shut down timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Page 5
OPERATOR SAFETY INSTRUCTIONS
DANGER MEANS: If you do not follow the instructions in a DANGER, severe bodily injury or death can occur to you
and/or other personnel.
WARNING MEANS: If you do not follow the instructions in a WARNING, injury can occur to you or to other personnel.
CAUTION MEANS: If you do not follow the instructions in a CAUTION, damage can occur to the machine or to other
property.
WARNING: Do not use gasoline, crankcase drainings, or oil containing gasoline or solvents.
WARNING: This machine is not to be connected to a type B gas vent.
WARNING: Risk of injection or severe injury. Keep clear of nozzle. Do not direct discharge stream at persons. This
equipment is to be used only by trained persons.
WARNING: If you smell gas, shut off the gas supply to the appliance, extinguish any open flame, and test all joints with a
soap solution. If the odor persists, call your gas supplier immediately.
DANGER: Failure to read the Owner's Manual prior to using this machine could result in injury to you or to
other personnel; damage to the machine or to other property could occur as well. You must have training in the
operation of this machine before using it. If you or your operator(s) cannot read English, have this manual
explained fully before attempting to operate this pressure washer.
DANGER: Machines can cause an explosion when operated near flammable materials and vapors. Do not use this
machine with or near fuels, grain dust, solvents, thinners, or other flammable materials.
DANGER: This machine emits carbon monoxide. Asphyxiation could occur if the unit is used in an area with poor or
inadequate ventilation. Operate unit in a well-ventilated area. Do not connect the exhaust stack directly to a
flue pipe. This may cause sooting of the combustion chamber. If you must vent to the outside use a hood type
vent or an exhaust fan. Install flue pipes in accordance with all local codes.
DANGER: Operating a machine that is not completely or fully assembled could result in injury or property damage. Do not
operate this machine until it is completely assembled. Inspect hoses, fittings, and heat exchanger for leaks or
fatigue before each use.
DANGER: Filling a machine with fuel in an explosive or poorly-ventilated area can cause an explosion. Only fill the fuel
tank in an open area. Do not fill the tank near open flames or while the unit is running. Do not smoke while filling
the tank. Do not over-fill the tank. Wipe up any spills. Tighten the cap on the tank when finished. Use kero-
sene, or #1 or #2 diesel as a fuel only. Do not use K-1 kerosene.
DANGER: Tampering with the machine's factory preset unloader valve setting and/or the pressure relief valve setting could
result in a machine explosion. Do not attempt to change the settings. Discontinue use if a malfunction occurs
and contact your local authorized Delco distributor.
DANGER: Operating a pressure washer with a malfunctioning burner or burner controls could result in a machine explosion.
Inspect burner and burner control operation before each use. If you suspect a problem with the burner, discon-
tinue use immediately and contact your local authorized Delco distributor for assistance.
DANGER: Failure to properly maintain the heat exchange coil can result in a steam explosion. Scale or lime build-up will
act as an insulation and decrease the efficiency of the heat exchanger coil and will also cause hot spots. This
can result in a weakening of the tubing which in turn may cause a rupture.
DANGER: Operating a machine with a ground fault circuit interrupter (GFIC) that has been tampered with, or one that
repeatedly trips, could result in an electrocution. Do not remove, disable, or tamper with the GFCI. If the ground
fault circuit interrupter repeatedly trips, discontinue use of the machine. Contact your local authorized Delco
distributor for assistance with the GFCI.
DANGER: Electrocution could occur if the machine is used on a power circuit that repeatedly trips or is undersized. Have a
licensed electrician check the fuse, circuit breaker or power supply, and/or contact your local authorized Delco
distributor for assistance.
DANGER: Electrocution could occur if maintenance and repairs are performed on a unit that is not properly disconnected
from the power source. Disconnect the power supply before attempting any maintenance or service.
DANGER: Use of this machine with a damaged power cord could result in an electrical shock. Do not use the machine if
the power cord is damaged. Do not use the electrical cord to move the machine.
WARNING: Water under high pressure can cause severe injury. Keep all persons away from the machine and the spray
area. Always point the wand toward the object being cleaned.

Page 6
WARNING: Injury to the operator or bystanders could occur if the machine is operated without all of the guards being in
place on the unit. When operating the machine, all guards must be in place.
WARNING: Operating a pressure washer under high pressure without a securely fastened hose, gun and spray nozzle(s)
could result in bodily injury or property damage. Make sure the spray nozzle, gun and hose are securely
fastened before operating the machine. Do not remove the nozzle or disconnect the high pressure hose while
the system is pressurized and/or running.
WARNING: Machines have moving parts and hot areas that can cause injury. Keep hands, feet, and loose clothing away
from the pressure washer while it is running. After use, allow an adequate amount of cool-down time before
attempting to perform any maintenance or service to this unit.
WARNING: Failure to wear safety goggles and protective clothing when operating a pressure washer reduces operator
safety. Always wear safety goggles and protective clothing when the machine is running or when operating
machine.
WARNING: Operating this pressure washer without the appropriate decals could result in operator injury or damage. Make
sure all labels and instructional information are fastened to the machine. Get new labels and decals from your
Delco distributor.
WARNING: Any alterations or modifications of this machine could result in damage to the machine or injury to the operator or
other bystanders. Alterations or modifications not authorized by the manufacturer voids any and all warranties
and liabilities.
CAUTION: Electrical damage can occur if the machine is exposed to direct and/or over spray. Always point the wand
toward the object being cleaned.
CAUTION: Using an extension cord with your pressure washer will result in a voltage drop and loss of power. Use of an
extension cord is not recommended.
CAUTION: Use of this machine to move other objects or to climb on could result in injury or damage.
CAUTION: Operating a pressure washer when the pump is low on oil could cause pump damage. Always check your oil
before using the machine. Use SAE 30 weight oil.
CAUTION: Operating a pressure washer with insufficient water flow can damage the pump. Water should be turned on full-
force to avoid insufficient water flow.
CAUTION: Pump damage could occur if the pressure washer is ran for more than five (5) minutes with the trigger released
(closed).
CAUTION: Maintenance and repairs performed by unauthorized personnel will void your warranty. Servicing of this unit
must always be referred to an authorized Delco distributor.
CAUTION: Maintenance and repairs performed by unauthorized personnel could result in damage or injury.
Servicing of this unit must always be referred to an authorized Delco distributor.
CAUTION: Your machine warranty will be voided if anything other than genuine Delco parts are used on your pressure
washer. Always use Delco parts for replacement.

Page 7
INTRODUCTION & MACHINE SPECIFICATIONS
The Avenger 1000-3 LP and NG fired system can tackle the toughest industrial cleaning tasks. Standard features
include dual belt driven triplex ceramic plunger pumps with low-water shut-off, 4.5 minute system shut down protection plus
many more features, all built into a compact space-saving design. When you need a quick and efficient cleaning system
in your maintenance program, you need the Avenger.
5.0
1500
230-1 Ø
23
30
NG
469,000
1400 F RISE
5 HP
Triplex Plunger
1/4"
Tubing 7/8 X 12 GA
6 P/C 193 FT
Trigger
50' Wire Braid
L51"xW22 1/2"xH51 3/4"
625 LBS
Flow Rate (GPM)
Pressure (Psi)
Volts
Amps
Min. Circuit Amp
Fuel
BTUH input
Temp.
Motor
Pump
Metering Valve
Heat Exchanger
Coil
Spray Control
Hose
Dimensions (in)
Weight (lbs)
3.0
1000
120 -1 Ø
18
20
LP
367,000
1400 F RISE
5 HP
Triplex Plunger
Trigger
50' Wire Braid
L51"xW22 1/2"xH51 3/4"
625 LBS
5.0
1500
230 -1 Ø
23
30
LP
489,000
1400 F RISE
5 HP
Triplex Plunger
1/4"
Tubing 7/8 X 12 GA
6 P/C 193 FT
Trigger
50' Wire Braid
L51"xW22 1/2"xH51 3/4"
625 LBS
1000 - 3LP
09152A
1500 - 5 NG
09145A
1000 - 3NG
09151A
1500 - 5 LP
09146A
3.0
1000
120 -1 Ø
18
20
NG
255,000
1400 F RISE
2HP
Triplex Plunger
1/4"
Tubing 7/8 X 12 GA
6 P/C 193 FT
Trigger
50' Wire Braid
L51"xW22 1/2"xH48
600 LBS

Page 8
HOW TO PREPARE THE MACHINE FOR OPERATION
NOTE: Following delivery of your Delco pressure washer, inspect the unit for shipping damage.
ASSEMBLY
1. Uncrate machine. Remove cleaner, parts package, gun and hose from shipping carton.
2. Assemble cleaner, gun, and hose. Do not install the pressure nozzle at this time.
3. Install the draft divertor.
4. Refer to the machine drawing in the service section for specific locations of parts you assemble.
INSTALLATION *(Read tags on junction box and gas valve)
1. Do not install the machine in small confined areas, near exhaust fans or in a wash bay where the unit could be
subjected to overspray and cleaning chemicals. Install only in well ventilated areas where adequate flow of air is
available. Adequate oxygen is needed for combustion or dangerous carbon monoxide will result. Stationary units
should be installed in accordance with local plumbing and electrical codes.
2. In all installations, this machine must be vented to the outside with a draft divertor and rain protection.
3. This machine is designed to be installed indoors and must be protected from any direct spray or overspray of
water.
WARNING: Adequate oxygen is needed for proper combustion or dangerous carbon monoxide can result.
GAS FIRED UNITS:
Natural gas units operate on 3-1/2" of water column pressure at the solenoid valve, and it must have 9" water column
or 5 oz.pressure supplied to the unit at the inlet. The water column check points are as follows: Check the 3-1/2"
water column pressure from the plug on the bottom of the solenoid valve with the burner operating. The water column
pressure is checked with a manometer. A gas shut-off valve should be installed on the gas line, with a union between
the shut-off and the unit. Also a sediment trap should be installed after the shut-off valve.
Standard butane or propane gas fired units operate on 11" W.C. Use a gas Manometer when checking gas pressure
or when making adjustments to the regulator. For top efficiency, a 100 lb. or larger gas bottle should be used.
Minimum gas line iron pipe size required for gas supply per length of gas line from the meter (Natural Gas). (Based on
a pressure drop of 0.3" water column pressure and 0.6 specific gravity.)
NOTE: Do not use flexible gas lines. Check total BTU consumption to be assured of proper gas supply to operate
pressure washer.
Pipe
Length 10 20 30 40 50 60 70 80 100 125 150 175 200
Feet
Pipe
Diameter 1 1 1 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2
Inches

Page 9
Stacking the Unit:
If the cleaner is used in an enclosed area be sure there is plenty of ventilation.. Be sure the chimney is the same size
as the stack on the cleaner. Poor draft will cause the unit to soot and not operate efficiently. When placing the unit
for installation, keep in mind that the unit should be positioned in such a manner that the stack will be as straight as
possible and protrude through the roof of the building at a proper location and at sufficient height to eliminate
downdraft.
A gas fired unit should have a draft divertor and proper rain protection on the vent pipe.
DANGER: All gas burner equipped cleaners should be installed and serviced in accordance with the
requirements of your local gas company and all applicable state laws or local ordinances.
Water Supply:
1. Connect the machine to the water supply with 3/4" water hose and 3/4" connections.
2. Insure that the water supply is capable of suppyling sufficient water flow volume.
CAUTION: Insufficient water flow can cause pump damage and failure.
Gas Supply:
1. Insure that the gas cock knob is in the "Off" position.
2. Installation of gas service to this machine is to be made with 1" plumbing or larger. Refer to chart on page 4.
Electrical:
CAUTION: This machine must be electrically grounded.
1. Connect only to grounded outlets with 30 ampere, 230 volt a/c (alternating current), 60 Hz, single phase circuits
protected by fuses or circuit breakers and GFCI protection.
Installation Checkout:
Before Starting:
1. Connect discharge hose and gun. Remove pressure nozzle.
2. Connect the water supply hose to the water inlet. Turn the water on and allow the water float tank to fill. When
the tank has filled and the flow through the float valve has stopped, check to insure that there is at least 1" be-
tween the water level and the float valve opening.
3. Before connecting the power supply be sure that the control switch is in the "Off" position.
WARNING: For your safety, if you smell gas:
1. Open windows.
2. Do not touch electrical switches.
3. Extinguish any open flame.
4. Immediately evacuate premises and call your gas supplier.
Pilot Lighting Procedure:
1. Turn the control switch to the #2 burner position.
2. When the trigger is pulled and water starts being pulled into the pump, the vac switch closes. In a couple
of seconds the pilot valve opens and simultaneously the spark starts. This operation will continue for 15
seconds or until the pilot ignites. If the pilot fails to light in 15 seconds the ignition systems "locks out"
and the power must be turned off to reset the ignition system.

Page 10
3. The pilot is ignited, the electronic flame sensing proves the ignition source and turns on the second
valve allowing main gas to flow. (If pilot ignition does not occur within 60 seconds, the system will lock-
out and turn off power to gas circuit.)
4. The proved pilot ignites the main burner. (Pilot operation continues until Burner is shut off.)
5. The spark continues several seconds after the burner is lit to provide stable ignition.
Test for Gas Leaks:
WARNING: DO NOT OMIT THIS TEST. With the main burner in operation, paint the pipe joints, pilot gas tubing
connections, and valve gasket lines with rich soap and water solution. Bubbles indicate gas leakage. To
stop leak, tighten the joints and screws or replace the gasket. Failure to do this test procedure could
cause serious injury.
Manual Shut Down Of Burner:
Complete shutdown can be accompished by turning the cock knob to the "Off" position.
INSTALLATION & SERVICING INSTRUCTIONS
WARNING: To avoid possible injury, fire, and explosion, please read and follow these precautions and all instruc-
tions on this machine. Maintenance and repairs performed by unauthorized personnel could result in
damage or injury. Servicing of this unit must always be referred to an authorized Delco distributor.
Repairs, adjustments, and servicing should be limited to the operations listed below.
1. Installation and servicing of gas appliances and ignition systems must only be performed by qualified personnel.
2. Turn off gas and electricity before starting installation or service. Turn back on after completion.
3. Caution must be taken to ensure that no raw gas is present in the surrounding area before attempting to put the
machine into operation.
WARNING: For your safety, if you smell gas: (A) turn off gas at line valve or meter, (B) open windows, (C) do not
touch electrical switches, (D) extinguish all open flames, (E) immediately call your gas supplier.
4. When using L.P.gas, the Control must be equipped with a regulator. Make sure that no gas is present in the area
before putting machine in operation. L.P. gas is heavier than air. Sniff at floor level for presence of gas. If
present do not attempt to start the machine. (See Warning on page 8.) When changing from natural gas to L.P.,
or L.P. to Natural Gas using a convertible control, the burner orifice and pilot orifice must also be changed.
5. Make certain that the pilot orifice being used is the correct size for the gas used.
6. To install or remove control, use a special body wrench on inlet boss. Do not grip body with pipe wrench
or vise.
7. Insert only correct size pipe or tubing into inlet or outlets of control. Insertion of any other objects can cause
internal damage resulting in a hazardous condition.
8. Make sure gas piping is pressure tested before control is connected. High pressure can damage control causing
a hazardous condition. Do not subject control to more than 1/2 P.S.I., (14" W.C.) inlet pressure.
9. Use only new, unused, and correct model controls as replacements. Do not re-use old controls.
10. Make sure piping is clean and free from burrs. Apply a small amount of good quality pipe thread compound
suitable for the gas being used. Thread compound should be used sparingly on male threads only, leaving the
first two threads clean. NOTE: Blow lines out with compressed air to remove all dirt or debris.
11. A drip leg (dirt trap) must be installed, after the shut-off valve, in the gas supply line to the control to prevent dirt
from entering control. See figure #1. All piping must conform to local codes and ordinances and with National
Gas code (ANSI Z223.1 and NFPA No. 54).
12. After installation has been completed, leak test all gas connections with soap solution with the main burner on.
Bubbles indicate leaks that must be corrected.

Page 11
Figure # 1
13. If control has been exposed to water in any way, it must be replaced.
14. Keep combustible material away from gas machine. Keep burner area clean and free of dust and lint.
15. If gas valve fails to shut off, do not turn off electrical power. Turn off gas supply allowing water pump to continue
running until system has cooled. Replace control.
16. The manual valve should not be used to adjust gas flow.
17. All components must be securely mounted with screws, bolts, etc., within the machine.
3 in. 176.2 mm
MINIMUM
3 in. 176.2 mm
MINIMUM
3 in. 176.2 mm
MINIMUM
GAS
VALVE
GAS
VALVE
GAS
VALVE
TUBING
GAS
SUPPLY
DROP
HORIZONTAL
PIPED
GAS
SUPPLY
PIPED
GAS
SUPPLY
DROP
HORIZONTAL
RISER
RISER
ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH
The following warning applies to installations using L.P., Propane Gas:
WARNING: To avoid possible injury, fire and explosion, please read and follow these precautions and all instruc-
tions on this machine before lighting the pilot. This machine uses L.P. (Propane) gas which is heavier
than air and will remain at floor level if there is a leak. Before lighting, sniff at floor level. If you smell
gas, follow these rules:
a) Get all people out of building.
b) DO NOT light matches. DO NOT turn electric lights or switches on or off in area. DO NOT use an electric fan to
remove gas from area.
c) Shut off gas at L.P. tank outside of building.
d) Phone the gas company and fire department. Ask for instructions.
Before hanging up, give your name, address, and phone number. DO NOT go back into the building. If help is
coming wait for them to arrive.
If your L.P. tank runs out of fuel, turn off gas at the machine. After L.P. tank is refilled, machine must be re-lit accord-
ing to manufacturer's instructions. If the gas control has been exposed to WATER in any way, DO NOT try to use it. It
must be replaced. DO NOT attempt repair on gas valve . It must be replaced. DO NOT attempt repair on gas
control or machine. Call an authorized Delco distributor for repairs.
Tampering is DANGEROUS and voids all warranties.
18. Do not short gas valve terminals. This may burn out the controls.
19. Make certain all wiring connections are tight. The spark ignitor and electrode connection to the ignition control
must be tight, or damage to the unit may result.
20. The ignition control and pilot burner must both be chassis grounded.
21. Handle the pilot-electrode assembly carefully. If damaged, replace entire assembly. The correct spark gap
should be 7/64" to 1/8".

Page 12
22. The pilots must be securely mounted relative to the main burner in such a position that main burner ignition will
occur with minimum delay with a low pilot flame just sufficient to open the main gas valve.
23. If the pilot fails to light when the control circuits are closed it may require manual resetting. Always wait at least 5
minutes before resetting the system. To reset turn the main switch to pump #1 only then back to burner #2.
Repeat if needed.
OPERATING INSTRUCTIONS
Following delivery and installation of your Delco pressure washer, inspect the unit for shipping damage and follow
these directions.
1. Observe all danger, warning, and caution statements.
2. Squeeze the trigger. Turn the control switch to position one (cold water wash). Allow the air to purge from the
system. Check the system for leaks.
3. Point the wand toward the floor. Flush out the system.
4. Turn the machine to the "OFF" position.
5. Install the nozzle onto the wand.
6. Turn the control switch to position one to establish the water flow. Turn the control switch to position two (hot
water wash). The burner should automatically come on. The burner should light in approximately 1 to 30 sec-
onds. If delay is longer adjust the pilot and check spark gap (7/64").
NOTE: When the trigger is released for more than 4.5 minutes, the machine will shut off. You must turn the
control switch to the "OFF" position, then "ON" to restart. The timer is to protect the pump and is not intended
to take the place of the main "ON-OFF" switch.
WARNING: If the water should stop flowing from the gun, turn the unit off immediately and contact an authorized
Delco service person.
7. Point the wand toward the object to be cleaned and proceed.
8. For chemically enhanced cleaning, place the chemical feed line in liquid detergent. Open the metering valve.
Dial the metering valve to obtain the desired chemical concentration. Close the metering valve for rinsing.
DANGER: The detergent level should never fall below the chemical line strainer. If you should discover this
condition, immediately turn the metering valve off. Air introduced into the system will cause pump
damage and create steam space if the burner is on which may lead to a steam explosion.
CAUTION: To prevent damage to your new cleaner:
1. Do not pump acids.
2. Do not allow the pump to run dry.
3. Do not fail to winterize.
9. Following the hot water wash, turn the control switch to position one. Allow the unit to run and adequately cool
down the heat exchanger. This period of time maybe spent on a cold water rinse.
10. Turn the control switch to position zero "OFF". Turn the water supply off and disconnect. Disconnect the pres-
sure hose, then drain.

Page 13
MAINTENANCE
1. Use a water softener on your water system if it is known to be high in mineral content.
2. Use only high quality Delco chemicals and follow the manufacturer's mixing instructions.
3. The cleaner should be flushed thoroughly after using the chemical solutions.
4. Follow the fuel specifications as outlined in the machine specifications.
5. Clean the strainer screen in the hose connection at float tank periodically.
6. Pump lubricant: Periodically check the oil level. Change the oil after 50 hours of operation, and then after every
500 hours. Use SAE 30 weight non-detergent oil.
7. Use teflon tape or approved sealer on the plumbing connections when reassembling to prevent leakage.
CAUTION: If the machine is to be out of service for a long period of time, we recommend that the system be flushed
out with anti-freeze water solution. Do not run the pump dry for extended periods of time or severe
damage will occur.
8. Deliming coils: Periodic flushing of the coils is recommended to extend coil life and prevent lime build up. See
note on page 11.
How To Check The Oil
It is critical that the oil in your pump be checked regularly. To check the oil follow this procedure:
1. Locate the oil dipstick in the plug on the top of the pump.
2. Turn the oil plug counterclockwise.
3. Wipe the dipstick with a clean cloth.
4. Screw the dipstick in. Pull it back out and check for the oil level mark. The oil level should be at the top mark.
5. If the oil is below the notch, add SAE 30 weight, non-detergent oil.
6. Put the dipstick back into the hole.
7. Turn the plug clockwise until it stops.
NOTE: Change the oil after the first 50 hours of use and then after every 500 hours of use. SAE 30 weight oil must be
used.
Freeze-Up Prevention:
To prevent freeze-up follow these instructions:
1. Drain the float tank.
2. Remove the spray nozzle from the wand.
3. Mix antifreeze concentrate and water in a large container. Read the recommended mixing instructions given with
the antifreeze.
4. Fill the float tank with the antifreeze mixture.
5. Put the end of the chemical line in the float tank. Fully open the metering valve.
6. Turn the control switch to position one.
7. Let the pump run until the antifreeze moves through the pump, coils, and pressure hose.
NOTE: The trigger on the gun must be pulled to allow antifreeze to pass through the coils, and then the trigger must be
released to allow the antifreeze to pass through the bypass line.
8. Turn the control switch to the "O" position and close the metering valve.
9. Unplug the cord and put the machine in a dry building.

Page 14
How to Check / Clean the Heat Exchange Coil:
(NOTE: See the Operators Safety Manual
The heat exchange coil should be inspected for deposit build-up after 40 hours of use, or once a month, whichever
comes first. In hard water areas a water softening system should be employed.
Scaling or liming of the coils is caused by mineral deposits from the water and occurs much faster in hard- water
areas and with heavier machine usage. Lime build-up can also be caused by inferior cleaning compounds.
DANGER: Failure to properly maintain the heat exchange coil can result in a steam explosion! Scale or lime build-
up will act as an insulation and decrease the efficiency of the heatexchanger coil and will also cause
"hot spots". This can result in a weakening of the tubing which can lead to a steam explosion.

Page 15
HOW TO CORRECT PROBLEMS IN THE MACHINE
Problem Cause Action
Oil is dripping The oil seal is worn. Contact an authorized Delco service person.
Chemical not Chemical control valve Tighten all fittings. Check for leaks in plastic
picking up. leaking around fittings. chemical lines.
Chemical control valve Tighten jam nut. Replace valve.
leaking around stem.
Screens on chemical Clean or replace.
suction lines stopped up.
Pop-off valve Not adjusted properly. Contact an authorized Delco service person.
leaking
Seat bad or worn. Replace pop-off valve.
Nozzle stopped up or Remove nozzle and clean. Turn hi-pressure
restricted in discharge. pump on and flush lines, then replace nozzle.
The pump The oil level is low. Fill to the proper oil level with high quality SAE
overheats. 30-weight non-detergent oil.
The machine has been Immediately press the gun release lever
running for an extended to allow cool water to flow into the pump.
period of time with the trigger gun off.
Pressure excessive, rises too fast, and Scale or dirt in coils See "Preventative Maintenance" descaling of
pops off at relief valve coils.
High pressure nozzle. Remove nozzle at tip of gun and clean. Flush
There is/has been water in the oil and The oil seal is worn. Contact an authorized Delco service person.
water is dripping from under the pump.
The humidity is high. Contact an authorized Delco service person.
Cracked plunger. Contact an authorized Delco service person.
The plunger packing is Contact an authorized Delco service person.
worn.
The plunger retainer Contact an authorized Delco service person.
o-ring is worn.
Excessive vibration to gun and hose Worn, clogged or defective Contact an authorized Delco service person.
check valves in pump.
Restricted or under size nozzle. Clean and or replace with proper size.
The pump is drawing air. Contact an authorized Delco service person.
The motor will not start. Power cord may not be connected. Connect the power cord.
Switch may not be turned "ON", Turn switch "ON".
Ground fault circuit Reset the ground fault circuit interrupter.
interrupter did not reset.
The power cord may be Contact a licensed electrician.
connected to a dead outlet.
May have a defective motor or switch. Contact your authorized Delco dealer.
The thermal overload switch tripped. Allow motor to cool, reset thermal switch.
Cause

Page 16
HOW TO CORRECT PROBLEMS IN THE MACHINE
Problem Cause Action
The motor has difficulty Circuit may be too long, Locate the outlet nearest to the circuit
starting, or is overheating. overloaded, or conductors panel which can be reached with the
may be undersized. cord supplied with the machine.
Incorrect voltage or frequency. Check the voltage and frequency.
The motor is wet. Contact an authorized Delco service person.
The coils are limed. Delime the coils. See Operator Safety Manual
The nozzle is dirty. Remove and clean the nozzle.
Low Pressure Loose belt on pump. Tighten the belt.
Leaks in plumbing. Tighten all connections.
Insufficient water supply Increase water supply by using larger lines.
Insufficient water. Check water pressure and flow to machine.
Check float valve and float valve adjustments.
Nozzle is worn. Replace the nozzle.
Wrong nozzle size. Replace with proper size.
Dirty or worn check valves in pump. Contact an authorized Delco service person.
V-packings. Contact an authorized Delco service person.
The pump is noisy. There is air in the suction line. Check the water supply. Make sure all fittings
are tight.
The valves are dirty. Contact an authorized Delco service person.
The bearings are worn. Contact an authorized Delco service person.
The pump check valve springs are worn. Contact an authorized Delco service person.
Low temperature Scale or dirt inside coils. Clean per procedure in deliming.
Low gas pressure. Call your local gas supplier.Consult
specification plate for proper gas pressure.
Insufficient air supply. Insure air supply.
Gas line too small or too long. Call your local gas supplier. Gas line must be
the same size as valve inlet or larger. See chart
on page 4.
The gas burner will not light. Gas is turned off. Call the gas supplier.
Defective main control switch, Disconnect the electrical supply from the
vacuum switch, hi-limit switch. machine and turn the gas cock knob to "OFF".
Check the 24 volt supply circuit.
Remove wires at vacuum switch and
manually activate the vacuum switch. Continuity
should be present.

Page 17
HOW TO CORRECT PROBLEMS IN THE MACHINE
Problem Cause Action
Pilot light will not remain burning. Insufficient pilot pressure. Adjust per instructions in gas valve section.
Cross drafts. Machine must have draft divertor installed.
Close all out-side doors which may allow
windy conditions to blow the pilot out.
No spark and no pilot gas. No main Power. Check breakers or fuses.
Faulty transformer. Contact an authorized Delco service person.
Faulty vac switch. Contact an authorized Delco service person.
Faulty limit switch, high limit switch. Contact an authorized Delco service person.
Faulty ignition control unit. Contact an authorized Delco service person.
Spark but no pilot gas No gas supplied to pilot valve. Check manual pilot in line valve.
Manual valve(s) in the "Off" position. Check knob position and gas shut off.
Restricted pilot line or plugged pilot orifice. Contact an authorized Delco service
person.
Faulty pilot valve. Contact an authorized Delco service
person.
Faulty wiring. Contact an authorized Delco service
person.
Faulty ignition control. Contact an authorized Delco service
person.
Pilot gas but no spark. Broken or shorted electrode assembly. Contact an authorized Delco service
person.
Faulty ignition control unit. Contact an authorized Delco service
person.
Pilot flame is lit but main Low pilot flame. Check manual pilot valve.
burner does not come on.
Improper alignment of sensor in pilot flame Contact an authorized Delco service person.
Faulty main gas operator in gas control. Contact an authorized Delco service person.
Faulty wiring Contact an authorized Delco service person.
Faulty flame sensor. Contact an authorized Delco service person.
Faulty ignition control unit. Contact an authorized Delco service person.
Pilot cycles on and off by itself. Faulty pilot valve. Contact an authorized Delco service person.
Faulty wiring. Contact an authorized Delco service person.

Page 18
Notes:
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________

Page 19
Delco Avengers
1000-3NG/LP, (Single Phase)
Assembly Drawing No. 1
Machine Layout

Page 20
Delco Avengers
1000-3NG/LP (Single Phase)
Assembly Drawing No. 2