Lifan LFQ3690-CA Assembly instructions

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Operating Instructions
And
Owner’s Manual
PRO SERIES Pressure Washer
LFQ3690-CA
LFQ4515-CA
LFQ4515E-CA
Record Purchase Here
Model#____________________________
Engine ID#_________________________
(Unique Identifier stamped on engine crankcase)
Date of Purchase___________________
Purchase Location__________________
PLEASE KEEP AND READ THIS MANUAL CAREFULLY BEFORE OPERATING YOUR
NEW LIFAN Power USA Pressure Washer
All Lifan Hydro-Pro Pressure Washers are 50 State Compliant
( --‐ CA) Indicates this unit is CARB Certified
(E) Indicates this unit is Electric Start

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ATTENTION: Rental Companies and Private Owners who loan this
equipment to others!!!!
All persons to whom you rent/loan this pressure washer to must have access to
and read this manual. Keep this owner's manual with the pressure washer at all
times and advise all persons who will operate the machine to read it. You must
also provide personal instruction on how to safely set-up and operate the
pressure washer and remain available to answer any questions a
renter/borrower might have.
Only Trained Adults should set up and operate the Pressure Washer. DO NOT LET
CHILDREN OPERATE THIS EQUIPMENT!!!!!
Always wear safety apparel when operating this equipment, safety glasses, ear
protection, insulated waterproof gloves, and non-slip protective shoes are
recommended. When using any cleaning chemicals refer to the chemical label for
safety instructions concerning those chemicals for use of a respiration mask.
Never operate or let anyone operate this equipment while under the influence of
any alcohol, drugs, or medication or when fatigued.
Owner's Manuals are available from Lifan Power USA at 1-866-471-7464 Option 2.

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Pressure Washer
Definition of Pressure Washer: A machine that cleans dirty surfaces with high pressure water. This pressure
washer produces cold water high pressure spray. Cleaning chemicals may be incorporated into the spray if desired
on models equipped for "chemical induction through the pump". The pressure pump for this equipment is
powered by a gasoline internal combustion engine.
Equipment Protection Facts
InspectUponDelivery: FIRST! Inspectformissingordamagedcomponents.See “InitialSet-Up/Installation” section for wheretoreport missingor
damagedparts.
Add Engine Oil: Engineisshipped without oil . Seethe “Engine Manual” sectionof this manual forinstructions on capacity and viscosity
recommendations.
WaterFlow Requirements: Makesureyour supply waterflowrateis 20%higherthan thepressurewasher'sflow rate(see "Operations",
sectionfordetail),and thatyourwaterisclean andparticlefree.
Do not run Pressure Washer without proper inlet water supply to high pressure pump and for more than 1 minute without
depressing trigger on gun to circulate water to avoid damaging pump.
ChemicalSpraying: Useonlyapprovedpressurewasherchemicalsdesignedforhigh-pressureuse.Usesoap adjustmentknobtoregulatecleaning
power(onselectunits).
Storage: Do not allow water to freeze in the pump, hose, or spray gun(s). See “Storage” for more information. Maintenance Schedule:
Engine and pump require periodic inspection and servicing to keep pressure washer functioning efficiently. See “ MaintenanceSchedule
Summary ”forfrequencyofservicing.
Battery: A battery is requiredfor electric start feature (Denoted by E in model # only). A battery isnotincluded. Purchase a standard12VDC,
10Ahbattery, and furtherdetailin“Specifications”section.
WARNING: SPECIAL HAZARDS
 CO Poisoning: Exhaust from engine contains carbon monoxide, a poisonous gas that can cause carbon monoxide poisoning and
possible death if inhaled.
 Injection Injury : High-pressure spray can pierce skin and underlying tissues, leading to serious injury and possible amputation.
Such an injection injury can result in blood poisoning and/or severe tissue damage.
 Flying Debris : High-pressure spray can cause flying debris and possible surface damage.
 Electric shock : Operating equipment in wet conditions or near water can cause electric shock.
 Chemical Exposure: Cleaning chemical vapors or contact with skin may be hazardous.
 Fire/Explosion: Engine sparking can ignite fuel or other flammable liquids or vapors in the vicinity. Hot exhaust from engine can ignite
combustible materials.
 Burns : Pressure Washer pump and engine are hot surfaces that can cause burn injuries. Detailed
safety information about these hazards appears throughout this manual.

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PLEASE READ THE
FOLLOWING INSTRUCTIONS!
Unit Shipped without engine oil. See Pre-operating Instructions for further information.
IMPORTANT!!!!!!!!
Before Starting or Operating the Pressure Washer
Remove the Red Cap on the oil fill of the high pressure pump and insert Yellow
Dip Stick in its place. This pump is shipped with oil in the pump and the red cap
is used for shipping purposes only. Check the oil level in the pump with the
yellow dip stick prior to operating the pump. If additional oil is required to
bring the pump to operating level adds only Annovi Reverberi High Performance
Crankcase Oil. This AR oil is available at www.arnorthamerica.com or by calling
Lifan Power USA @ 1-866-471-4764.
.

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1. Fo r re pai r und er Warr an ty o r qu e stions c on cer nin g Warr an ty, DO N OT re tu r n this p r odu ct to th e
Sto re w h ere pu rc has e d. Follo w th e p r o ce du re s as outlin e d in th e “ WARRAN TY P OLICY” and
“ WARRAN TY RE G IST RA TIO N ” in th e O w n er’ s Manual. Fo r an y qu e stions v isi t
www .lifanpo wer usa. c o m o r c all 1 -‐‐ 866 -‐‐ 471 -‐‐ 7464 Option 2 for Warranty and Service.
2. Re ad th e “O w n er’ s Manual” p r io r to op er atin g an y e quip me n t and f am ili ar i ze y ou r s e lf w ith th e
p r op er and saf e op er ation of th e e quip me nt. If y ou h ave an y qu e stions , v isi t
www .lifanpo wer usa. c o m o r c all 1 -‐‐ 866 -‐‐ 471 -‐‐ 7464 Option 2 for Warranty and Service.
This Owner’s Manual is for the Following Models:
LFQ3690-CA
LFQ4515-CA
LFQ4515E-CA
(E) Indicates unit is Electric Start Feature (Battery not included.
(CA) i n dic at es t his un i t is C ARB Cer t ified for C al ifor n i a

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TABLE OF CONTENTS
Preface 7
Product Specifications 8
Safety Instructions 9
Controls and Features 12
P RE -‐‐ O P E RA T ING IN ST RU CTIO N S
Assembly 14
Engine Oil Level Check 20
Engine Fuel Level Check 21
Air Cleaner Element Check 22
Connecting Inlet/Outlet/Chemical Injection Hose 23
Connecting Nozzle 25
Operation of Pressure Washer 26
Transporting and Storing the Unit 30
Maintenance 31
Troubleshooting 36
Pressure Washer Safety 37
Safe Operations 38
Limited Warranty Policy 41
Appendix 45

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Preface
Thank you for choosing LIFAN Power USA for your Power Equipment Needs. LIFAN Power USA prides itself
on providing quality products at affordable pricing, creating the “Best Equipment Value on Today’s Market!”
Your High Pressure Washer utilizes our Industrial Grade Gasoline Engines combined with the premium grade
Annovi Reverberi High Pressure Pump to produce a high pressure water spray for cleaning purposes. Do
not use this unit for other purposes as unforeseen hazards or equipment damage may result. This unit is
intended for OUTDOOR USE ONLY.
All LIFAN Power USA products are manufactured utilizing the latest technology. Built with quality
components, your new Power Equipment Product will give you years of dependable service. Your unit,
along with all of LIFAN Power USA products a r e designed, engineered, and manufactured with LIFAN’s
Industrial Grade Gasoline Engine.
This O w n er’ s Manual w ill p r o v id e y ou w ith all of y ou r n ee d e d info rm ation fo r y ou r n ew P o wer Equip me n t
Pr odu ct, in c ludin g Saf e Op er ation and Main te nan ce of y ou r unit. P l e as e keep and re ad this O w n er’ s
Manual c o m pl ete l y and care full y p r io r to op er ation. Kee p this O w n er’ s Manual fo r assistan ce in th e futu re,
su c h as p r op er m ain te nan ce s c h e dul e s and tips to p r olon g th e lif e and e ff ec ti ve us e of y ou r unit. If y ou
re qui re assistan ce, pl e as e v isi t ou r we bsi te ( www .lifanpo wer usa. c o m ) o r c all toll f ree 866 -‐‐ 471 -‐‐ 7464 Option 2
for Warranty and Service.
This Owner’s Manual contains information with respect to the newest products at the time of publication.
Due to revision and modifications, the information noted in the Owner’s Manual might vary from the
actual status. This Owner’s Manual is subject to change without notice. The copyright of the Owner’s Manual
belongs to EquipSource, LLC. Any group or individual is forbidden to reprint or copy any of this Owner’s
Manual without the written consent of EquipSource, LLC.
FO R ALL W ARRAN T Y AN D SE RV I C E REL AT E D ISSUES/QUES T I O NS DO N OT RE T URN Y O UR UNI T TO T HE S TO RE
O R D EALER W HERE T HE I T E M W AS P U RC HASE D. FO R SE RV I C E V ISI T LIFAN POW ER USA’S W EBSI T E
( WWW. LIFAN POW ERUS A.CO M) O R C ALL 1 - 866 - 471 - 7464 Option 2 . W E W ILL BE H APP Y TO HAN D LE Y O UR
W ARRAN T Y ISSUE O R D IRE CT Y O U TO T HE NEARES T “ AU T H O RIZE D SE RV I C E C EN T E R.”

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PRODUCT SPECIFICATIONS
HYDRO-PRO PRESSURE WASHERS
Model Size
LFQ3690-CA
LFQ4515-CA
LFQ4515E-CA
Pump Manufacturer
Annovi Reverberi
Annovi Reverberi
Annovi Reverberi
Pump Type
AR RRV Tri-Plex
AR RRV Tri-Plex
AR RRV Tri-Plex
Pressure Output (psi
1
)
3600 psi
4500psi
4500 psi
Delivery Output (gpm
2
)
3 gpm
4 gpm
4 gpm
ENGINE
Manufacturer LIFAN LIFAN LIFAN
Model LF177F-BQ LF190F-BQ LF190F-BDQ
Maximum Horsepower (MHP) 9mhp 15 mhp 15 mhp
Engine Displacement 270 cc 420 cc 420 cc
Starting System Recoil Recoil Recoil/Electric (E)
Fuel Tank Capacity 1.6 Gallons 1.7 Gallons 1.7 Gallons
Engine Type 4 Stroke OHV 4 Stroke OHV 4 Stroke OHV
Fuel Type 87 Octane Gasoline 87 Octane Gasoline 87 Octane Gasoline
Fuel Compliance 10% Ethanol or Less 10% Ethanol or Less 10% Ethanol or Less
Oil Type & Amount SAE10w30w 32oz SAE10w30w 32oz SAE10w30w 32oz
Low Oil Shutoff Protection Yes Yes Yes
CARB Certified (CA) CARB/EPA Models (CA) CARB/EPA Models (CA) CARB/EPA Models
DIMENSIONS
Length (inch)
Width (inch)
Height (inch)
Weight (lbs)
ACCESSORIES
Lance
1 ea.
1 ea.
1 ea.
Gun
1 ea.
1 ea.
1 ea.
Inlet Hose
1 ea.
1 ea.
1 ea.
Outlet Hose
1 ea.
1 ea.
1 ea.
Chemical Injector
N/A
1 ea.
1 ea.
5 Spray Tip Nozzle 0 , 1 5 , 2 5 , 4 5 s o a p 0 , 1 5 , 2 5 , 4 5 s o a p 0 , 1 5 , 2 5 , 4 5 s o a p
Wand & Hose Bracket
1 ea.
1 ea.
1 ea.
Mobility/Wheel Kit
2 Wheels/2 handles
2 Wheels/2 handle
2 Wheels/ handles
Comments
PSI
1
= Pounds per Square Inch
GPM
2
= Gallons perMinute

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Safety Instructions
For your safety read this manual carefully. Become familiar with the proper operation, care, and maintenance of your LIFAN Hydro-Pro
Pressure Washer.
The safety and alert symbol ( ) is used with a signal word ( CAUTION, DANGER, WARNING ), a pictorial
and/or safety message to alert you to hazards. CAUTION indicates a hazard that, if not avoided, could result in
minor or moderate injury. DANGER indicates a hazard that, if not avoided, could result in death or serious injury.
WARNING indicates a hazard that, if not avoided, could result in death or serious injury.
Hazard Symbols and Meanings
WARNING!
Running pressure washer emits carbon monoxide: an odorless, colorless, poison gas.
Breathing carbon monoxide can cause nausea or death!
ONLY operate pressure washers outdoors.
Exhaust gas must be prevented from entering confined areas.
Direct exhaust gas away from windows, doors, ventilation and other openings. Do not
operate pressure washer inside or under any buildings.
WARNING!
The Engine exhaust from this pressure washer contains chemicals known to the State of California to cause birth
defects, reproductive harm and cancer.
This is t he s a fe t y al er t sy mb o l. It is u sed t o al er t yo u t o p o t e nt i al p erso nal
i nju ry h a z a rds . Ob ey all s a fe t y m ess ag es t h at fo ll o w t his sy mb o l t o a void
p ossi bl e i nju ry or de at h .
Explosi
on
Fir
e
Electrical
Shock