Generac 006602-0 Owner’s Manual

Operator's Manual

OneWASHTM Power Washer

GENE

"Bullt In the USA using domestic

www.generac.com or 1-888-436-3722 _0°,0_0.0n_o_

WARNING!

California Proposition 65

Engineexhaustandsomeofitsconstituentsareknownto thestateofCaliforniato causecancer,

birthdefects,andotherreproductiveharm.

WARNING!

California Proposition 65

Thisproductcontainsor emitschemicalsknownto thestateofCaliforniatocausecancer,

birthdefects,andotherreproductiveharm.

Table of Contents

Section 1 - Introduction ............................................. 1

1.1 Introduction .......................................................... 1

Section 2 - Safety ....................................................... 3

2.1 Safety Rules......................................................... 3

Section 3 - General Information ................................ 7

3.1 Know Your Power Washer ................................... 7

3.2 Product Specifications ......................................... 8

3.3 Emissions Information .......................................... 8

3.4 High Altitude Operation ........................................ 8

3.5 Unpacking ............................................................ 9

Section 4 - Set-up ..................................................... 11

4.1 Assembly ........................................................... 11

4.2 Add Engine Oil ................................................... 12

4.3 Add Fuel ............................................................. 13

4.4 Connect Hose and Water Supply to Pump ........ 13

4.5 Howto Use Nozzles ........................................... 15

Section 5 - Operation ............................................... 19

5.1 Operation ........................................................... 19

5.2 Power Washer Location ..................................... 19

5.3 Checklist Before Starting Engine ....................... 19

5.4 How to Start Your Power Washer ...................... 19

5.5 Automatic Cool Down System

(Thermal Relief) ................................................. 21

5.6 How to Stop Your Power Washer ...................... 21

Section 6 - Maintenance .......................................... 23

6.1 Maintenance Recommendations ....................... 23

6.2 Maintenance Schedule ...................................... 23

6.3 Pump Oil ............................................................ 24

6.4 Emissions Control .............................................. 24

6.5 Power Dial Settings ........................................... 24

6.6 Power Washer Maintenance .............................. 24

6.7 Check and Clean Inlet Screen ........................... 24

6.8 Check High Pressure Hoses .............................. 24

6.9 Check Detergent Siphoning Tube ...................... 24

6.10 Check Spray Gun .............................................. 24

6.11 Chemical Tank Maintenance ............................. 24

6.12 Nozzle Maintenance .......................................... 25

6.13 Engine Maintenance .......................................... 26

6.14 Engine Oil Recommendations ........................... 26

6.15 Service Air Cleaner ............................................ 27

6.16 Service Spark Plug ............................................ 28

6.17 Inspect Muffler and Spark Arrester .................... 28

6.18 After Each Use ................................................... 29

6.19 Winter Storage ................................................... 29

6.20 Long Term Storage ............................................ 29

6.21 Other Storage Instructions ................................. 30

6.22 Transporting/Tipping of the Unit ........................ 30

Section 7 - Troubleshooting ................................... 31

7.1 Troubleshooting Guide ...................................... 31

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Section 1 Introduction

1.1 -- INTRODUCTION

Thank you for purchasing this power washer manufac- tured by Generac Power Systems, Inc. This model is a high performance, air-cooled, engine-driven power washer that operates at 3100 psi.The units feature cus- tom designed wheels, axial cam pump with stainless steel pistons, automatic cool down system, quick connect nozzles, high pressure hose, detergent siphoning hose

and chemical tank.

Common sense and strict compliance with the spe- cial instructions are essential to preventing acci- dents. The operator must read this manual and

thoroughly understand all of the instructions and warn- ings before using the equipment. If any portion of the manual is not understood, contact the nearest Authorized Dealer for starting, operating and servicing procedures. The owner is responsible for proper and safe use of the equipment.

The power washer can operate safely, efficiently and reli- ably only if it is properly located, operated and main- tained. Before operating, servicing or storing:

• Study all warnings in this manual and on the product

carefully.

• Become familiar with this manual and the unit before

use.

• Refer to the Assembly section of the manual for

instructions on final assembly procedures. Follow the instructions completely.

The manufacturer cannot anticipate every possible cir- cumstance that might involve a hazard. The warnings in this manual, and on tags and decals affixed to the unit are, therefore, not all inclusive. If using a procedure, work method or operating technique that the manufacturer does not specifically recommend, ensure that it is safe for others. Also make sure the procedure, work method or operating technique utilized does not render the power

washer unsafe. THE INFORMATION CONTAINED HEREIN WAS

BASED ON MACHINES IN PRODUCTION AT THE TIME OF PUBLICATION. GENERAC RESERVES THE RIGHT TO MODIFY THIS MANUAL AT ANY TIME.

Save these instructions for future reference. If you loan this device to someone, always loan these

instructions and the Owner's Manual to the individ- ual as well.

1.1.1 -- Where to Find Us

You can contact Generac Customer Service by phone at

1-888-436-3722, or on the internet at www.generac.com. Record the important information of the unit in the follow- ing chart for future reference and/or service inquiries.

Model Number Serial Number Date Purchased

OneWASHTM PowerWasher 1

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Introduction

2 OneWASH TM Power Washer

Section 2 Safety

2.1 m SAFETY RULES

Throughout this publication, and on tags and decals affixed to the power washer, DANGER, WARNING, CAU- TION and NOTE blocks are used to alert personnel to special instructions about a particular operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully. Their definitions are as follows:

Hearing Protection

Indicates a hazardous situation or action which, if not avoided, will result in death or serious injury.

Indicates a hazardous situation or action which, if not avoided, could result in death or serious injury.

CAUTION!

Indicates a hazardous situation or action which, if not avoided, could result in minor or moderate injury.

NOTE:

Notes contain additional information important to a procedure and will be found within the regular text body of this manual.

These safety warnings cannot eliminate the hazards that they indicate. Common sense and strict compliance with the special instructions while performing the action or service are essential to preventing accidents.Safety Symbols and Meanings.

ToxicFumes

Slippery Surface

Fire

Kickback Electrical Shock

Fall Fluid Injection

Explosion Operator's Manual

..-0

MovingParts

2.1.1 m Exhaust Hazards

Carbon monoxide produced during use can

kill in minutes. NEVER use indoors, in a vehi-

cle, or in other sheltered areas, EVEN IF doors and windows are open. Only use OUTSIDE and far away from windows, doors and vents.

Flying Objects Hot Surface

Some chemicals or detergents may be harm- ful if inhaled or ingested, causing severe nau- sea, fainting, or poisoning.

Operate power washer ONLY outdoors. A running engine gives off carbon monoxide.

Carbon monoxide is an odorless, colorless, poisonous gas. Breathing carbon monoxide can cause headache, fatigue, dizziness, vomiting, confusion, seizures, nau- sea, fainting or death. If you start experiencing any of these symptoms, IMMEDIATELY move to fresh air.

Seek medical attention.

OneWASH TM Power Washer 3

Safety

• Keep exhaust gas from entering a confined area through windows, doors, ventilation intakes, or other openings. Warn any occupants inside about the symp- toms of carbon monoxide so they know to move to fresh air if they begin to feel ill.

• The use of a carbon monoxide detector inside any occupied premises between the power washer and the occupant is recommended.

• NEVER start or run engine indoors, in a vehicle, or in an enclosed area, even if windows and doors are open.

• Use a respirator or mask whenever there is a chance that harmful gas or vapors may be inhaled.

• Read all instructions with respirator or mask so you are certain the respirator or mask will provide the neces- sary protection against inhaling harmful gas or vapors.

If you begin to experience any of the CO symptoms listed above, IMMEDIATELY move to fresh air.

2.1.2 m Fluid Injection Hazard

NEVER aim spray gun at people, animals, or

electrical devices. Serious injury or death will

result. ALWAYS point spray gun in safe direc-

tion, squeeze spray gun trigger to release

high pressure, every time you stop engine. Engage trigger lock when not in use.

• The high pressure stream of water that this equipment

produces can cut through skin and its underlying tis- sues, leading to serious injury, possible amputation or death. Spray gun traps high water pressure, even when engine is stopped and water is disconnected, which can cause injury.

• NEVER allow CHILDREN to operate power washer or play nearby. This is NOT a toy.

• NEVER repair high pressure hose. Replace it.

• NEVER repair leaking connections with sealant of any kind. Replace o-ring or seal.

• NEVER connect high pressure hose to nozzle exten-

sion.

2.1.3 m Electrical Shock Hazard

_ Risk of electrocution.

• NEVER spray near power source.

Contact with power source can cause electric shock or burn.

2.1.4 -- Hot Surfaces Hazard

L!_ii!!_ii_;!ii_i!!iii;!!i¢I!!:C?!i!:!:¸¸iRi_i_;ij;!_Wii_iN;_iG!i_iJi_iil!!iiii_;iili:,i

Contact with muffler area can result in

serious burns. Exhaust heat/gases can

ignite combustibles, structures or damage fuel tank causing a fire.

• DO NOT touch hot parts and AVOID hot exhaust gases.

• Allow equipment to cool before touching.

• Keep at least five (5) feet (152 cm) of clearance on all sides of power washer including overhead.

• It is a violation of California Public Resource Code, Section 4442, to use or operate the engine on any for- est-covered, brush-covered, or grass-covered land

unless the exhaust system is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order. Other states or federal jurisdic- tions may have similar laws. Contact the original equip-

ment manufacturer, retailer, or dealer to obtain a spark arrester designed for the exhaust system installed on this engine.

• Replacement parts must be the same and installed in the same position as the original parts.

• Keep high pressure hose connected to pump and spray gun while system is pressurized.

• NEVER secure spray gun in open position.

• NEVER leave spray gun unattended while machine is

running.

• NEVER use a spray gun which does not have a trigger

lock or trigger guard in place and in working order.

• Always be certain spray gun, nozzles and accessories are correctly attached.

4 OneWASH TM Power Washer

Safety

2.1.5 m Fire Hazards 2.1.7 m Fall Hazard

mable and explosive. Fire or explosion

Fuel and its vapors are extremely flam-

can cause severe burns or death.

WHEN ADDING OR DRAINING FUEL

• Turn power washer OFF and let it cool at least two (2)

minutes before removing fuel cap. Loosen cap slowly

to relieve pressure in tank.

• Fill or drain fuel tank outdoors.

• DO NOT overfill tank. Allow space for fuel expansion.

• If fuel spills, wait until it evaporates before starting engine.

• Keep fuel away from sparks, open flames, pilot lights,

heat, and other ignition sources.

• DO NOT light a cigarette or smoke.

WHEN STARTING EQUIPMENT

• Ensure spark plug, muffler, fuel cap, and air cleaner are in place.

• DO NOT crank engine with spark plug removed.

WHEN OPERATING EQUIPMENT

• DO NOT tip engine or equipment at angle which causes fuel to spill.

• DO NOT spray flammable liquids.

WHEN TRANSPORTING OR REPAIRING EQUIPMENT

• Transport/repair with fuel tank EMPTY.

• Disconnect spark plug wire.

WHEN STORING FUEL OR EQUIPMENT WITH FUEL IN TANK

• Store away from furnaces, stoves, water heaters, clothes dryers, or other appliances that have pilot light or other ignition source because they can ignite fuel

vapors.

2.1.6 -- Hearing Protection Hazard

Hearing Protection Recommended.

dies and slippery surfaces. Kickback

_._/ Use of power washer can create pud-

from spray gun can cause you to fall.

• Use only on a level surface.

• The cleaning area should have adequate slopes and drainage to reduce the possibility of a fall due to slip-

pery surfaces.

• Do not use on elevated surfaces where chance of kick-

back could result in a serious fall. Firmly grasp spray gun with both hands when using

high pressure spray to avoid injury when spray gun kicks back.

2.1.8- Moving Parts Hazard

Starter and other rotating parts can entangle

hands, hair, clothing, or accessories.

• NEVER operate power washer without protective

housing or covers.

• DO NOT wear loose clothing, jewelry or anything that

may be caught in the starter or other rotating parts.

• Tie up long hair and remove jewelry.

2.1.9 -- Kickback Hazard

Starter cord kickback (rapid retraction) can

result in bodily injury. Kickback will pull hand and arm toward engine faster than you can let go. Broken bones, fractures, bruises, or sprains could result.

• NEVER pull starter cord without first relieving spray gun pressure.

• To relieve trapped pressure, point gun in safe direction and release pressure by pulling/actuating trigger on

spray gun.

• When starting engine, pull cord slowly until resistance

is felt and then pull rapidly to avoid kickback.

• After each starting attempt, where engine fails to run, always point spray gun in safe direction, and squeeze spray gun trigger to release high pressure.

• Firmly grasp spray gun with both hands when using

high pressure spray to avoid injury when spray gun kicks back.

OneWASH TM Power Washer 5

Safety

2.1.10 m Spark Hazards

fire or electric shock.

_ nintentional sparking can result in

WHEN ADJUSTING OR MAKING

REPAIRS TO YOUR Power washer.

• Disconnect the spark plug wire from the spark plug and

place the wire where it cannot contact spark plug.

WHEN TESTING FOR ENGINE SPARK

• Use approved spark plug tester.

• DO NOT check for spark with spark plug removed.

2.1.11 m Splash Hazards

- propel objects.

• Always wear safety goggles when using this equip-

• Before starting the power washer, be sure you are

• NEVER substitute safety glasses for safety goggles.

High pressure spray may damage fragile items including glass.

• DO NOT point spray gun at glass when using red (0°)

• NEVER aim spray gun at people, animals, electrical

Improper treatment of power washer can damage it and shorten its life.

• If you have questions about intended use, ask dealer

• NEVER operate units with broken or missing parts, or

• DO NOT by-pass any safety device on this machine.

• DO NOT operate power washer above rated pressure.

• DO NOT modify power washer in any way.

• Before starting power washer in cold weather, check all

• NEVER move machine by pulling on hoses. Use han-

Risk of eye injury. Spray can splash back or

ment or in vicinity of where equipment is in use.

wearing adequate safety goggles.

NOTE:

MAX nozzle.

devices or plants.

NOTE:

or contact qualified service center.

without protective housing or covers.

parts of the equipment to be sure ice has not formed

there.

dle provided on unit.

• Check fuel system for leaks or signs of deterioration, such as chafed or spongy hose, loose or missing clamps, or damaged tank or cap. Correct all defects

before operating power washer.

• This equipment is designed to be used with Generac authorized parts ONLY. If equipment is used with parts that DO NOT comply with minimum specifications, user

assumes all risks and liabilities.

6 OneWASH TM Power Washer

Section 3 General Information

3.1 -- KNOW YOUR POWER WASHER

Read this owner's manual and safety rules before operat- ing your high power washer. If you loan this device to someone, ALWAYS loan these instructions AND the owner's manual to the individual as well. Compare the illustrations with your high power washer to familiarize yourself with the locations of various controls (Figure 3-1). Save this manual for future reference. Replacement owner's manuals can be printed from the

Generac Web site. A -Spray Gun - Controls the application of water onto

the cleaning surface with trigger device. Includes a trigger lock.

B -Lance with Quick Connect - Allows you to switch

between different nozzles.

C -High Pressure Hose- Connect one end to water

pump and the other to the spray gun. D -Recoil Starter - Use for starting the engine. E -Oil Fill - Check and add engine oil. F -Air Filter - Protects engine by filtering dust and

debris out of the intake air.

G -Pump- Develops high pressure. H -Thermal Relief Valve - Cycles water through the

pump when water reaches 125°F warm water will

discharge from pump onto ground. This prevents

internal pump damage.

I -Engine On/Off Switch - Turn this switch to "ON"

before using the recoil starter. Turn the switch to

"OFF" to stop the engine. J -Unloader Valve - Controls the high pressure output. K -High Pressure Outlet - Connection for high pres-

sure hose.

L -Water Inlet- Connection for Garden Hose. M -Fuel Tank - Fill tank with regular unleaded fuel.

Always leave room for fuel expansion. O -Choke - Prepares a cold engine for starting. P -Power Dial - Provides optimal cleaning power for

each desired application. Q -Nozzles- Chemical injection, Blast (0°), Wash (25°),

Detergent for various high pressure cleaning applica-

tions. R -Chemical Tank - A drain-able tank used to hold

power washer safe detergents to be siphoned into

the low pressure stream. S -Prepare/Start Instruction - Identifies proper proce-

dure to set up and start/stop power washer

T -Drain Plug - Used to drain engine oil U -Serial Number Location

V -Chemical Tank Fill Cap W -Chemical Tank Drain Cap

Figure 3-1. Features and Controls

OneWASH TM Power Washer 7

GeneralInformation

3.1.1 m ITEMS NOT SHOWN

Identification Label (on engine blower housing) -

Provides model and serial number of power washer. Please have these readily available if calling for assis-

tance. Detergent Siphoning Tube/Filter - Use to siphon power

washer safe detergents into the low pressure stream.

3.2 m PRODUCTSPECIFICATIONS

Pressure - (PSI/BAR) .............................. 3100/213 Max

Flow Rate - (GPM / LPM) ............................ 2.8/10.6 Max

Water supply temperature - (°F / C°) ............. 100/38 Max

Hose length - (Feet / Meters) .................................. 30/9.1

Chemical Tank(s) - Number per unit ............................... 1

Chemical Tank - Capacity (Gal) N/A .......................... 0.75

Nozzles - Number per unit .............................................. 3

Lance Length (Inches / cm) ..................................... 20/51

Gun ..................................................................... Standard

Engine Displacement - (Cubic Inch / cc) ............ 12.9/212

Spark Plug Type ................................. F7TC or equivalent

Spark Plug Gap - (Inches / mm) .... 0.028-0.031/0.70-0.80

Fuel Capacity - (Quarts / Liters) ............................ 3.7/3.5

Oil Capacity - (Oz / Liters) ...................................... 20/0.6

On/Off Switch ............................................................. Yes

• Hard starting or stalling after starting

• Rough idle

• Misfiring or backfiring under load

• Afterburning (backfiring)

• Black exhaust smoke or high fuel consumption

3.4 _ HIGH ALTITUDE OPERATION

The fuel system on this engine may be influenced by operation at higher altitudes. Proper operation can be ensured by installing an altitude kit when required. See

the table below to determine when an altitude kit is required. Operating this engine without the proper alti-

tude kit installed may increase the engine's emissions and decrease fuel economy and performance. Kits may be obtained from any Dealer and should be installed by a qualified individual.

Altitude* Kit Number PSI

0 - 5000 Feet Not Required 3100

5000 - 7000 Feet 0K2016 3100

* Elevation above sea level.

3.3 m EMISSIONSINFORMATION

The U.S. Environmental Protection Agency (and Califor- nia Air Resource Board for equipment certified to CA standards) requires that this engine comply with exhaust and evaporative emission standards. Locate the emis- sions compliance decal on the engine to determine what standards the engine meets, and to determine which emissions warranty applies. The engine is certified to meet the applicable emission standards on gasoline. It is important to follow the maintenance specifications in the Maintenance section to ensure that the engine complies with the applicable emission standards for the duration of the product's life. This engine utilizes lean carburetion settings and other systems to reduce emissions. Tamper- ing with or altering the emission control system may increase emissions and may be a violation of Federal or California Law. Acts that constitute tampering include but

are not limited to:

• Removal or alteration of any part of the intake, fuel, or exhaust systems

• Altering or defeating the governor linkage or speed- adjusting mechanism to cause the engine to operate outside its design parameters

NOTE:

If the altitude kit has been installed and the engine will be operated at an altitude where the kit is not required, the engine should be returned to the origi- nal factory configuration. Operating the engine at lower altitudes with the kit installed may cause the engine to overheat and result in serious engine dam- age, and may result in decreased performance and

increased emissions.

If you are aware of any of the following symptoms, have your engine inspected and repaired by your servicing

dealer:

8 OneWASH TM Power Washer

GeneralInformation

3.5 m UNPACKING

1. Remove the parts bag, accessories, and inserts included with power washer.

2. Open carton completely by cutting each corner from top to bottom.

3. Ensure you have all included items prior to assembly.

• Main Unit

• Handle Assembly

• High Pressure Hose

• Siphon Hose & Filter

• Spray Gun

• Lance with Quick Connect Fitting

• Oil Bottle

• Hose Hook Wire form

• Parts Bag (which includes the following):

-- Operator's Manual

-- Warranty Statement

-- Emission Warranty Statement

-- CARB Emission Warranty Statement

-- Owner's Registration Card

-- Bag containing Color-coded Nozzles

-- 4mm Allen wrench

-- Screw (Qty 4)

-- Tree clips (Qty 4)

-- Plastic Gun Holder

-- Plastic Lance Holder

4. If you are missing any items from your carton, please call Generac Customer Service at 1-888-436-3722.

When calling for assistance, please have the model and serial number from the data tag available.

5. Fill out and send in registration card. Write Model number, Serial number & date of purchase in the

table located in the "Where to Find Us" section.

OneWASH TM Power Washer 9

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General Information

10 OneWASH TMPower Washer

Section 4 Set-up

4.1 m ASSEMBLY

Read entire operator's manual before you attempt to assemble or if you have any problems with the assembly of your power washer, please call Generac Customer Service at 1-888-436-3722. When calling for assistance, please have the model and serial number from the data tag available.

Install gun hook to handle assembly using the (2) supplied tree clips. Align holes and push the tree clips into holes until they sit flush with gun hook (Figure 4-1).

Figure 4-2. Attach Lance Hook to Unit

Place handle assembly (A) onto cradle supports (B). Allow handle to slide into position. Locate the (4)

screws and Allen wrench. Install the four screws using supplied Allen wrench as shown in

(Figure 4-3).

Figure 4-1. Attach Gun Hook to Handle

Assembly

2. Install lance hook to unit frame using (2) supplied tree clips. Align holes and push the tree clips into holes until they sit flush with gun hook (Figure 4-2).

Figure 4-3. Attach Handle to Unit

OneWASHTMPowerWasher 11

Set-up

4. Install hose hook (Figure 4-4). 7. Place recoil rope into holder as shown (Figure 4-7).

Figure 4-7. Recoil Rope Hook

Figure 4-4. Install Hose Hook

Insert color-colored nozzles in spaces provided in front panel (Figure 4-5).

Figure 4-5. Insert Nozzles

6. Place spray gun/lance extension onto spray gun holder as shown (Figure 4-6).

8. Attach siphon tube to location A (Figure 4-8).

Figure 4-8. Siphon Tube Location

4.2 m ADD ENGINE OIL

1. Place power washer on a flat, level surface.

2. Clean area around oil fill and remove orange oil fill cap/dipstick.

3. Using oil funnel, slowly pour oil into fill opening. See "Maintenance" section for oil type recommendation.

NOTE:

On some units there is more than one oil fill location. In these instances it is only necessary to use one of

the oil fill points.

4. Check periodically until the oil level is between "L" and "H" on the dipstick (Figure 4-9). Do not overfill.

Figure 4-6. Gun/Lance

12 OneWASHTMPowerWasher

Set-up

Acceptable Oil

Level Range

Figure 4-9. Dipstick

NOTE:

Any attempt to crank or start the engine before it has been properly serviced with the recommend oil may result in engine failure.

5. Replace oil fill cap/dipstick and fully tighten.

Fill fuel tank outdoors. DO NOT overfill tank. Allow space for fuel expansion.

If fuel spills, wait until it evaporates before starting

engine.

Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition sources.

DO NOT light a cigarette or smoke.

Clean area around fuel fill cap, remove cap.

Slowly add regular unleaded fuel to fuel tank. Be careful not to overfill. Fill to bottom of filter screen,

this will allow for fuel expansion (Figure 4-10).

Install fuel cap and let any spilled fuel evaporate before starting engine.

4.3 m FUEL

Fuel must meet these requirements:

• Clean, fresh, unleaded gasoline.

• A minimum of 87 octane/87 AKI (91 RON).

• Gasoline with up to 10% ethanol (gasohol) is accept- able.

NOTE:

Avoid power washer damage, Failure to follow Oper- ator's Manual for fuel recommendations voids war-

ranty.

• DO NOT use unapproved gasoline such as E85.

• DO NOT mix oil in gasoline.

• DO NOT modify engine to run on alternate fuels.

To protect the fuel system from gelling, mix in a fuel stabi- lizer when adding fuel. See Storage. All fuel is not the same. If you experience starting or performance prob- lems after using fuel, switch to a different fuel provider or change brands.

_,_ uel and its vapors are extremely flamma-

4.3.1 m WHEN ADDING FUEL

• Turn power washer OFF and let it cool at least two (2)

minutes before removing fuel cap. Loosen cap slowly

to relieve pressure in tank.

ble and explosive. Fire or explosion can cause severe burns or death.

Figure 4-10. Adding Fuel

4.4 m CONNECT HOSE AND WATER

SUPPLY TO PUMP

NOTE:

DO NOT run the pump without the water supply con- nected and turned on. Damage to equipment result- ing from failure to follow this instruction will void warranty.

NOTE:

Remove and discard the shipping cap from the pump's water inlet before attaching hose.

Run water through your garden hose for 30 seconds to clean out any debris.

Before connecting garden hose to water inlet, inspect inlet screen (A) (Figure 4-11). Clean screen if it con- tains debris or have it replaced if damaged. DO NOT run power washer if inlet screen is damaged.

OneWASH TMPower Washer 13

Set-up

IMPORTANT: DO NOT siphon standing water for the water supply. Use ONLY cold water (less than 100°F). Water supply must be adequate to handle greater than

3.8 gallons per minute and no less than 30 psi. NOTE:

Using a One Way Valve (vacuum breaker or check valve) at pump inlet can cause pump or inlet connec- tor damage.

• There MUST be at least ten feet of unrestricted garden

hose between the power washer inlet and any device,

such as a vacuum breaker or check valve.

• Damage to equipment resulting from failure to follow

this instruction will void warranty.

• Always wear safety goggles when using this equip- ment or in vicinity of equipment in use.

• Before starting the power washer, be sure you are

wearing adequate safety goggles.

• NEVER substitute safety glasses for safety goggles.

4. Connect lance to spray gun (Figure 4-13). Tighten by

hand.

Figure 4-13. Attach Lance

Attach end of high pressure hose to base of spray gun (Figure 4-14). Tighten by hand.

Figure 4-11. Inspect Inlet Screen

3. Connect the garden hose (not to exceed 50 feet in length) to the water inlet (Figure 4-12). Tighten by

hand.

Figure 4-12. Connect Garden Hose

Figure 4-14. Connect Hose to Spray Gun

equipment produces can cut through skin and

The high pressure stream of water that this

its underlying tissues, leading to serious injury and possible amputation.

• NEVER connect high pressure hose to lance.

• Keep high pressure hose connected to pump and spray gun while system is pressurized.

• Always be certain spray gun, nozzles and accessories are correctly attached.

_4_ Risk of eye injury. Spray can splash back or

. propel objects.

14 OneWASH TM Power Washer

Set-up

6. Connect high pressure hose to pump (uncoil hose before connecting to pump or spray gun) (Figure 4-15). Tighten by hand.

CAUTION!

/_The hose can be damaged if it comes in con-tact with a hot engine or muffler.

Figure 4-15. Connect High Pressure Hose

to Pump

• If you get nozzle too close, especially using a high pressure nozzle (RED), you may damage surface being cleaned.

The high pressure stream of water that this equipment produces can cut through skin and

its underlying tissues, leading to serious injury and possible amputation.

• NEVER exchange nozzles without the trigger lock being engaged on the spray gun.

• DO NOT twist nozzles while spraying.

NOZZLE PSI GPM

Blast 3100 2.4

Wash 2600 2.8

The OneWash power washer is equipped with a Power dial to provide optimal cleaning power for each applica- tion (Figure 5-4).

1. Pull back collar on quick-connect lance (Figure 4-17) and install the GREEN wash nozzle (Figure 4-18) for the following cleaning applications.

7. Turn ON the water, squeeze the trigger to purge the pump system of air (Figure 4-16).

Figure 4-16. Squeeze Trigger

4.5 m HOW TO USE NOZZLES

The quick-connect on the nozzle lance allows you to switch between different nozzles. Nozzles can be

changed while power washer is running once spray gun trigger is locked in the safety position. The nozzles vary the pressure and spray pattern.

• For most effective cleaning, keep nozzle from 8 to 24 inches (20 to 61 cm) away from cleaning surface.

Figure 4-17. Nozzles

Figure 4-18. Wash Pressure Nozzle (Green)

OneWASHTMPowerWasher 15

, Turn the Power Dial so that it matches the material

you would like to clean (Figure 4-19).

Car icon - This setting is best for cleaning

Set-up

q_, cars, boats and RV's as it delivers the right

balance of power and flow to clean these types of surfaces effectively. House Icon - This setting is best for clean- ing vinyl and aluminum siding on your home, as it delivers the right balance of power and flow to clean these types of sur- faces effectively. Wood Fence Icon - This setting is best for

_ leaning wood decks fences and siding on

your home, as it delivers the right balance of power and flow to clean these types of surfaces effectively.

Brick Icon - This setting is best for clean-

mmmm ing brick, concrete and masonry materials,

mmmm

lmm_ as it delivers the right balance of power and

mill flow to clean these types of surfaces effec-

tively.

Figure 4-20. Blast Pressure Nozzle (Red)

When applying detergent, use only the black nozzle

(Figure 4-21). Only use power washer safe detergents/ soaps to help break down stubborn dirt and grime on a variety of surfaces.

Figure 4-19. Power Dial

To remove persistent stains on concrete or masonry

Figure 4-21. Detergent Nozzle (Black)

surfaces, use the red blast nozzle within the stained area (Figure 4-20).

CAUTION!

This tip (Red Nozzle) can damage work sur- face if it is too close or held in one position for

an extended time.

16 OneWASHTMPowerWasher

Set-up

4.5.1 m Cleaning and Applying Detergent

CAUTION!

_ hemicals can cause bodily injury, and/orproperty damage.

• NEVER use caustic liquid with power washer.

• Use ONLY power washer safe detergents/soaps. Fol- low all manufacturer's instructions.

To apply detergent, follow these steps:

1. Review use of nozzles.

2. Remove chemical tank cap (Figure 4-22).

3. Prepare detergent solution as required by job.

Figure 4-22. Chemical Tank & Cover

4. Insert filter on end of siphoning tube through the hole

in the chemical tank cap (Figure 4-23).

5. Make sure siphoning tube remains fully submerged

into detergent.

NOTE:

Make sure the filter remains fully submerged in detergent while applying detergent.

NOTE:

Contact with the hot muffler can damage detergent siphoning tube.

• When inserting the siphon into a detergent solution bottle, route the tube so as to keep it from inadvertently

contacting the hot muffler.

6. Make sure black detergent nozzle is installed.

NOTE:

Detergent cannot be applied with the high pressure nozzle (Green or Red). Only use the Black nozzle with detergent.

7. Confirm set-up instructions have been followed.

NOTE:

You must attach all hoses before you start the engine.

• Starting the engine without all the hoses connected

and without the water turned ON will damage the

pump.

• Damage to equipment resulting from failure to follow

this instruction will void warranty.

8. Start engine following instructions How to Start Your

Power Washer.

9. Apply detergent to a dry surface, starting at lower

portion of area to be washed and work upward using long, even, overlapping strokes.

10. Allow detergent to "soak in" for 3-5 minutes before washing and rinsing. Reapply as needed to prevent surface from drying. DO NOT allow detergent to dry on surface being cleaned (prevents streaking).

IMPORTANT: You must flush the detergent siphoning system after each use by placing the filter into a bucket of clean water, then run the power washer in low pressure

for 1-2 minutes.

4.5.2 m Power Washer Rinsing

1. Remove black detergent nozzle from lance.

2. Select and install desired high pressure nozzle fol- lowing instructions How to Use Nozzles.

3. Point spray gun in safe direction and away from peo- ple, animals and plants. Squeeze trigger to flush any

Figure 4-23. Install Siphoning Tube

OneWASHTMPowerWasher 17

remaining chemical from system.

4. Keep spray gun a safe distance from area you plan to spray.

Set-up

_,,_, _,_ Kickback from spray gun can cause

• Use only on a level surface.

• Do not use on elevated surface to prevent the risk of a serious fall.

• Firmly grasp spray gun with both hands when using

high pressure spray to avoid injury when spray gun kicks back.

5. Apply a high pressure spray to a small area and then

check surface for damage. If no damage is found, you can assume it is okay to continue rinsing.

6. Start at top of area to be rinsed, working down with

same overlapping strokes as you used for cleaning.

you to fall.

4.5.3 m Cleaning Detergent Siphoning Tube

If you used the detergent siphoning tube, you must flush it with clean water before stopping the engine.

1. Place detergent siphoning tube/filter in a bucket full of clean water.

2. Remove high pressure nozzle from nozzle extension.

3. Select and install black detergent nozzle following instructions "How to Use Nozzles".

4. Flush for 1-2 minutes.

5. Shut off engine following instructions How to Stop Power Washer and turn off water supply.

6. ALWAYS point spray gun in a safe direction, squeeze spray gun trigger to release retained high water pres- sure. Engage trigger lock when not in use.

IMPORTANT: Spray gun traps high water pressure, even when engine is stopped and water is disconnected.

The high pressure stream of water that this equipment produces can cut through skin and

its underlying tissues, leading to serious injury and possible amputation. Spray gun

traps high water pressure, even when engine

is stopped and water is disconnected, which

can cause injury.

• Keep high pressure hose connected to pump and

spray gun while system is pressurized.

• ALWAYS point spray gun in safe direction, and

squeeze spray gun trigger to release high pressure, every time you stop engine. Engage trigger lock when

not in use.

18 OneWASHTMPowerWasher

Section 5 Operation

5.1 m OPERATION

If you have any problems operating your power washer, please call Generac customer service at

1-888-436-3722.

5.2 m POWER WASHER LOCATION

5.2.1 m Clearances and Air Movement

Running engine gives off carbon monoxide,

an odorless, colorless, poisonous gas.

Breathing carbon monoxide can cause head-

ache, fatigue, dizziness, vomiting, confusion, seizures, nausea, fainting or death. For more

information, reference the CO warnings in the

"Safety" section.

Place power washer outdoors in an area that will not accumulate deadly exhaust gas. NEVER place power washer where exhaust gas could accumulate and enter inside or be drawn into a potentially occupied building. Ensure exhaust gas is kept away from any windows, doors, ventilation intakes, or other openings that can allow exhaust gas to collect ina confined area. Prevailing

winds and air currents should be taken into consideration when positioning power washer (Figure 5-1).

• Operate power washer ONLY outdoors.

• Keep exhaust gas from entering a confined area

through windows, doors, ventilation intakes, or other openings.

• NEVER start or run engine indoors, in a vehicle or in

an enclosed area, EVEN if windows and doors are open.

5 Foot Minimum

Figure 5-1. Building Clearances

5.3 -- CHECKLIST BEFORE STARTING

ENGINE

1. Be sure to read and understand the "Safety" section and "Operation" section before using power washer.

2. Check that the oil is at the full mark on the dipstick, and that fuel has been added to the fuel tank.

3. Review the unit's assembly and ensure fitting are properly secured and make sure there are no kinks, cuts, or damage to high pressure hose.

4. Provide a proper water supply at an adequate flow, clear screens of debris, and confirm that the system is purged of air.

5. Confirm unit is secure on level ground and surround- ing work area is clear.

5.4 _ HOW TO START YOUR POWER

WASHER

tibles, structures or damage fuel tank

Exhaust heat/gases can ignite combus-

causing a fire.

Keep at least 5 ft. (152 cm) clearance on all sides of power washer including overhead.

OneWASHTMPowerWasher 19

DO NOT run the pump without the water supply con- nected and turned on. Damage to equipment result- ing from failure to follow this instruction will void warranty.

NOTE:

1. Turn the ON/OFF switch to the "ON" position (Figure 5-2).

ON/OFF SWITCH

Figure 5-2. ON/OFF Switch

2. Rotate pressure control knob to the position shown on "Start" decal (Item #2) (Figure 5-3).

Figure 5-4. Choke Knob

Secure unit from movement when pulling recoil.

When starting the engine, grasp starter grip handle (Figure 5-5) and pull slowly until you feel some resis- tance. Then pull rapidly to start engine.

Operation

Figure 5-3. Power Dial

Choke the engine by slowly pulling out on the choke knob until it stops in the "ON" position (Figure 5-4).

Hearing Protection Recommended.

NOTE:

For a warm engine, push the choke knob down until it stops in the "OFF" position (Figure 5-4),

STARTER

GRIP

Figure 5-5. Starting the Engine

Return starter grip handle slowly. DO NOT let rope "snap back" against holder.

When engine starts, slowly push the choke knob in to the "OFF" position as engine warms. If engine falters, pull choke knob out to the "ON" position, then push in to the "OFF" position (Figure 5-6).

20 OneWASH TM Power Washer

Operation

OKE OFF

Figure 5-6. Choke Knob

8. After each starting attempt, where engine fails to run,

always point gun in safe direction, and squeeze spray gun trigger to release high pressure.

9. If engine fails to start after six pulls, push choke knob

in to the "OFF" position, and repeat steps 6 through

10.

equipment produces can cut through skin and

The high pressure stream of water that this

its underlying tissues, leading to serious injury and possible amputation. Spray gun

traps high water pressure, even when engine

is stopped and water is disconnected, which

can cause injury.

• DO NOT allow CHILDREN to operate power washer or

play nearby.

• Keep high pressure hose connected to pump and

spray gun while system is pressurized.

• NEVER aim spray gun at people, animals or electrical

devices. Serious injury will result.

• DO NOT secure spray gun in open position.

• DO NOT leave spray gun unattended while machine is

running.

• NEVER use a spray gun which does not have a trigger

lock or trigger guard in place and in working order.

• Always be certain spray gun, nozzles and accessories

are correctly attached.

Contact with muffler area can result in

serious burns. Exhaust heat/gases can

ignite combustibles, structures or damage fuel tank causing a fire.

• DO NOT touch hot parts and AVOID hot exhaust gases.

• Allow equipment to cool before touching.

• Keep at least 5 feet (152 cm) of clearance on all sides of power washer including overhead.

• It is a violation of California Public Resource Code, Section 4442, to use or operate the engine on any for- est-covered, brush-covered, or grass-covered land

unless the exhaust system is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order. Other states or federal jurisdic- tions may have similar laws.

• Replacement parts must be the same and installed in the same position as the original parts.

5.5 m AUTOMATIC COOL DOWN SYSTEM

(THERMAL RELIEF)

If you run the engine on your power washer for 3-5 min- utes without pressing the trigger on the spray gun, circu- lating water in the pump can reach temperatures above

125°F. The system engages to cool the pump by dis-

charging the warm water onto the ground.

5.6 m How TO STOP YOUR POWER

WASHER

1. Release spray gun trigger.

2. Turn the engine ON/OFF switch to the "OFF" position

(Figure 5-7).

3. ALWAYS point spray gun in a safe direction, and

squeeze spray gun trigger to release retained high water pressure. Engage trigger lock when not in use.

4. Turn OFF water supply.

OneWASH TM Power Washer 21

ON/OFF SWITCH

Figure 5-7. ON/OFF Switch

IMPORTANT: Spray gun traps high water pressure, even

when engine is stopped and water is disconnected.

The high pressure stream of water that this equipment produces can cut through skin and

its underlying tissues, leading to serious injury and possible amputation. Spray gun

traps high water pressure, even when engine

is stopped and water is disconnected, which

can cause injury.

Operation

• Keep high pressure hose connected to pump and spray gun while system is pressurized.

• ALWAYS point spray gun in safe direction, squeeze spray gun trigger to release high pressure, every time you stop engine. Engage trigger lock when not in use.

22 OneWASH TM Power Washer

Section 6 Maintenance

6.1 m MAINTENANCERECOMMENDATIONS

Regular maintenance will improve the performance and extend the life of the power washer. See any qualified

dealer for service. The power washer's warranty does not cover items that

have been subjected to operator abuse or negligence. To receive full value from the warranty, the operator must maintain the power washer as instructed in this manual, including proper storage as detailed in "Winter Storage" and "Long Term Storage".

NOTE:

Should you have questions about replacing compo- nents on your power washer, please call

1-888-436-3722 for assistance.

Some adjustments will need to be made periodically to properly maintain your power washer.

All service and adjustments should be made at least once each season. Follow the requirements in the "Main-

tenance Schedule" chart.

NOTE:

Once a year you should clean or replace the spark plug, clean or replace the air filter, and check the spray gun and nozzle extension assembly for wear. A new spark plug and clean air filter assure proper fuel- air mixture and help your engine run better and last

longer.

6.2 m MAINTENANCESCHEDULE

Follow the hourly or calendar intervals, whichever occurs first. More frequent service is required when operating in

adverse conditions.

First 5 Hours

Change engine oil

Every 8 Hours or Daily

Check/clean water inlet screen*

Check high pressure hose Check detergent siphoning hose/filter Check spray gun and assembly for leaks

Clean debris

Check engine oil level

Every 20 Hours or Every Season

Change engine oil**

Every 50 Hours or Every Season

Check/clean air cleaner filter**

Inspect muffler and spark arrester*

Every 100 Hours or Every Season

Service spark plug * Clean if clogged. Replace if perforated or torn.

** Service more often under dirty or dusty conditions.

OneWASH TM Power Washer 23

Maintenance

6.3 m PUMP OIL

DO NOT attempt any oil maintenance on this pump. The pump is pre-lubricated and sealed from the factory, requiring no additional maintenance for the life of the

pump.

6.4 m EMISSIONSCONTROL

Maintenance, replacement, or repair of the emissions control devices and systems may be performed by any non-road engine repair establishment or individ- ual. However, to obtain "no charge" emissions control

service, the work must be performed by a factory autho- rized dealer. See the Emissions Warranty.

6.5 _ POWER DIAL SETTINGS

Tampering, maintenance, adjustment or replacement of the throttle settings will impact the performance and may void the warranty of the unit.

6.6 _ POWER WASHER MAINTENANCE

6.6.1 m Clean Debris

Daily or before use, clean accumulated debris from cleaning system. Keep linkage, spring and controls clean. Keep area around and behind muffler free from any combustible debris. Inspect cooling air slots and openings on the power washer. These openings must be kept clean and unobstructed.

Power washer parts should be kept clean to reduce the risk of overheating and ignition of accumulated debris.

• Use a damp cloth to wipe exterior surfaces clean.

NOTE:

Improper treatment of power washer can damage it and shorten its life.

• DO NOT insert any objects through cooling slots.

• Use a soft bristle brush to loosen caked on dirt, oil, etc.

• Use a vacuum cleaner to pick up loose dirt and debris.

6.7 -- CHECK AND CLEAN INLET SCREEN

Examine the screen on the pump's water inlet. Clean it if the screen is clogged or replace it if screen is damaged.

6.8 _ CHECK HIGH PRESSURE HOSES

The high pressure hoses can develop leaks from wear, kinking, or abuse. Inspect the hoses each time before using them. Check for cuts, leaks, abrasions or bulging of cover, damage or movement of couplings. If any of these conditions exist, replace the hose immediately.

equipment produces can cut through skin and

The high pressure stream of water that this

its underlying tissues, leading to serious injury and possible amputation.

• NEVER repair high pressure hose. Replace it.

• Replacement hose rating MUST meet or exceed maxi- mum pressure rating of unit.

6.9 m CHECK DETERGENT SIPHONING

TUBE

Examine the filter on the detergent tube and clean if clogged. The tube should fit tightly on the barbed fitting. Examine the tube for leaks or tears. Replace the filter or tube if either is damaged.

6.10 -- CHECK SPRAY GUN

Examine the hose connection to the spray gun and make sure it is secure. Test the trigger by pressing the trigger, it "springs back" into place when you release it. Replace spray gun immediately if it fails to "spring back".

6.11 _ CHEMICAL TANK MAINTENANCE

Periodically you will need to drain and clean the chemical tank.

Use the following these instructions:

1. Shut off engine and turn off water supply.

2. ALWAYS point spray gun in a safe direction, squeeze

spray gun trigger to release retained high water pres- sure.

3. Remove chemical fill cap and siphon hose

(Figure 6-1 ).

4. Obtain a container to drain the excess chemical into.

24 OneWASH TM Power Washer

Maintenance

Figure 6-1. Chemical Cap/Siphon Hose

5. Place container under the chemical tank drain. (Figure 6-2).

6. Remove drain cap and allow chemical to drain.

7. Insert garden hose into fill neck allow water to flush out tank.

8. Once tank is clean re install drain cap with gasket, do not over tighten.

The high pressure stream of water that this equipment produces can cut through skin and

its underlying tissues, leading to serious injury and possible amputation. Spray gun

traps high water pressure, even when engine

is stopped and water is disconnected, which

can cause injury.

Keep high pressure hose connected to pump and

spray gun while system is pressurized.

ALWAYS point spray gun in safe direction, and squeeze spray gun trigger to release high pressure every time you stop engine. Engage trigger lock when

not in use.

3. Remove nozzle from end of nozzle extension.

4. Use a small paper clip to free any foreign material clogging or restricting nozzle (Figure 6-3).

5. Remove lance from spray gun.

Figure 6-3. Free Foreign Material

Figure 6-2. Chemical Drain Cap

Using a garden hose, remove additional debris by back flushing water through lance (Figure 6-4). Back

flush between 30 to 60 seconds.

6.12 m NOZZLE MAINTENANCE

A pulsing sensation felt while squeezing the spray gun trigger may be caused by excessive pump pressure. The principal cause of excessive pump pressure is a nozzle clogged or restricted with foreign materials, such as dirt, etc. To correct the problem, immediately clean the nozzle following these instructions:

Shut off engine and turn off water supply.

ALWAYS point spray gun in a safe direction, squeeze spray gun trigger to release retained high water pres-

sure.

7. Reinstall nozzle into lance.

8. Reconnect lance to spray gun.

9. Make sure garden hose is connected to pump water

OneWASH TM Power Washer 25

Figure 6-4. Back Flush Lance

inlet. Check that high pressure hose is connected to spray gun and pump. Turn on water.

Maintenance

10. Start engine following instructions "How to Start Your Power Washer".

11. Test power washer by operating with each quick con- nect nozzle.

6.13 m ENGINE MAINTENANCE

_ Unintentional sparking can result in fire

WHEN ADJUSTING OR MAKING REPAIRS TO YOUR POWER WASHER

• Disconnect the spark plug wire from the spark plug and place the wire where it cannot contact spark plug.

WHEN TESTING FOR ENGINE SPARK

• Use approved spark plug tester.

• DO NOT check for spark with spark plug removed.

or electric shock.

6.14 m ENGINE OIL RECOMMENDATIONS

We recommend the use of high-quality detergent oils acceptable if classified for service SF, SG, SH, SJ or higher. DO NOT use special additives.

Outdoor temperatures determine the proper oil viscosity for the engine. Use the chart to select the best viscosity for the outdoor temperature range expected.

4ml zmm

I°F =20 -10 0 10 20 32 40 60

'c-_o -2'o -1; 6 1; 2'o

Temperature Range of Expected Use

80 100

6.14.1 m Check Oil Level

Oil level should be checked prior to each use or at least every 8 hours of operation. Keep oil level maintained.

1. Make sure power washer is on a flat, level surface.

2. Clean area around oil fill and wipe dipstick clean remove oil fill cap (Figure 6-5).

3. Verify oil is at the proper level on the dipstick.

4. Insert the dipstick into filler neck but do not screw it in.

5. Replace and tighten oil fill cap.

Figure 6-5. Fill Engine Oil

6.14.2 m Adding Engine Oil

1. Make sure power washer is on a flat, level surface.

2. Check oil level as described in Checking Oil Level.

3. If needed, slowly pour oil into oil fill opening until the proper level on the dipstick is reached.

4. Insert the dipstick into filler neck but do not screw it in.

5. If level is low, fill until the oil level is between "L" and "H" on the dipstick (Figure 6-6).

6. Replace and tighten oil fill cap.

* Below 50°F (10°C) the use of SAE 30 will result in hard start-

ing.

** Above 80°F (27°C) the use of 10W30 may cause increased

oil consumption. Check oil level more frequently.

NOTE:

Acceptable Oil

Level Range

Synthetic oil meeting ILSAC GF-2, API certification mark and API service symbol with "SJ/CF ENERGY CONSERVING" or higher, is an acceptable oil at all temperatures. Use of synthetic oil does not alter required oil change intervals.

Figure 6-6. Dipstick

26 OneWASH TM Power Washer

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