Kärcher HDS4.0/22 User manual

WARNING:
This product and accessories may contain a chemical known to the
State of California to cause cancer and birth defects or other
reproductive harm.
For more information about this regulation: www.P65Warnings.ca.gov
9.801-508.0-AY 11/02/17
Liberty HDS Stationary Series
Hot Water - Electric Powered -
Natural Gas or LP Heated
Dealer’s Manual Pressure Washer
GROUND
8
10
12
14
160
2
4
6
TACH/HOUR
TACH/HOUR
1.Place all switches in the“OFF” position.
2.Connect powersupply to properly groundedo
utlet.Test
theGFCI(ifequipped) usingtheresetand test procedures
providedonthe GFCI device.The GFCI mustbe resetand
testedwitheveryuse.
3.Securehigh pressure hose,shut-off gun and wandto out-
let
4.Connect water supply hoseand turn on water.
5.Grasp wand
Placepump switch in the“ON” position.
6.Turngasvalvecontrolknob to“ON” position. Pilot will light
automaticallywhen burnerswitchis turned “ON”.
7.T
oheatwater,placeburnerswitch in the “ON” position and
adjustthermostat to desired temperature.
8.T
urnondetergent and proceed with cleaning.
9.After cleaning:
A.T
urnoffdetergentand rinse.
B.Place burner switchin the“OFF” position.
C.Allowmachinetodischarge waterfor2-3 minutesto
coolcoil.
D.Place pump switch in the“OFF” position.
E.Squeezetr iggerguntorelievesystem pressure.
F
. Turnoffwatersupply.
MODED’EMPLOI
LIRELEMANUEL DE L
’OPERATEURAVANTUTILISATIONUNE
MAUVAISEUTILISATIONPEUTCAUSER DES BLESSURESOU
DOMMAGESMATÉRIELS.
INSTRUCCIONESDE OPERACION
LEAELMANUAL DE OPERACIÓN ANTES DE USARSE. LA OPERACIÓN
INADECUADAPUEDEOCASIONARLESIONESPERSONALESODAÑOS
ALAS PROPIEDADES.
OPERATINGINSTRUCTIONS
READOPERATINGMANUALBEFORE OPERATINGMACHINE.
IMPROPEROPERATIONMAYRESULTIN PERSONAL INJURY OR
PROPERTYDAMAGE.
1.Coloque todos los interruptores en la posición “OFF” (APAGADO).
2.Conectela fuentede energía aun tomacorriente conectadoatierrade modo ad-
ecuado.PruebeelInterruptorAccionadoporCorrientede Pérdida aTierra(GFCI
porsussiglasen Inglés) (si hubiera) mediante losprocedimientosde reinicio y
pruebaincorporados en dicho dispositivo.El GFCI debe reiniciarse y ponerse a
pruebacada vezquese use.
3.Asegurela manguerade alta presión,pistola y varilla al acopladordel tomacor-
riente.
4.Conectela manguerade suministro de aguay abrala llave.
5.Sujete
la varilla.Coloque el interruptor de la bomba en la posición
“ON”(ENCENDIDO).
6.Coloque la perilla de controlde la válvula de gasen la posición“ON” (ENCENDI-
DO).Elpiloto se encenderá automáticamentecuando el quemador se encienda.
7.A
decalentar el agua,coloque el interruptordel quemadoren la posición“ON”
(ENCENDIDO)y ajuste el termostato a la temperaturadeseada.
8.Encienda el detergenteyprocedacon la limpieza.
9.Después de limpiar:
A.Apagueeldetergente y enjuague.
B.Pongaelinterruptordelquemador en la posición“OFF”(APAGADO).
C.Dejequela máquina descargueagua por2 ó3 minutosparaque se
enfríeel serpentín.
D.Pongaelinterruptorde la bomba en la posición“OFF” (APAGADO).
E.Presionela pistola paraaliviar la presión delsistema.
F
. Cierreel suministro de agua.
1.Metteztous les interrupteurs en position “OFF”.
2.Connectez le bloc d’alimentation électrique àune prise correctement
miseàla terre.Testez le disjoncteur de fuite de terre (lecas échéant)
àl’aidedesprocédures de réinitialisationet d’essaiindiquées surle
disjoncteur.Ledisjoncteur doit être réinitialisé et testé àchaque utili-
sation.
3.Fixezle tuyauàhaute pression, le pistolet et le tube rigide au raccord
desortie.
4.Connectez le tuyau à eau et faites couler l’eau.
5.Tenez le tube rigide fermement.Mettezl’interrupteurde la pompe en
position“ON”.
6.Tournez le bouton du robinet de gaz en position“ON”.La veilleuse
s’allumeautomatiquementlorsque l’interrupteur du brûleur est missur
“ON”.
7.Pour chaufferl’eau, mettez l’interrupteurdu brûleur sur“ON” et réglez
lethermostat à la températurevoulue.
8.A
ctivezledétergentet commencez le nettoyage.
9.A
prèsle nettoyage:
A.Coupezle détergent et rincez.
B.Mettezl’interrupteurdubrûleursur“OFF”.
C.Laissezlamachine évacuer l’eaupendant 2 à 3minutes,le
tempsque la bobine refroidisse.
D.Mettezl’interrupteurdela pompe sur“OFF”.
E.Actionnezle pistolet pour réduire la pression du système.
F
.Coupezl’eau.
WARNING
PRECAUCION/ AVERTISSEMENT
TOREDUCE THE RISK
OFINJURY READ
OPERATOR’SMANUAL
CAREFULLYBEFORE
USING.THISMACHINE
TOBE USED ONLYBY
QUALIFIEDOPERATORS.
LEAEL MANUALOPERACIONANTES
DEUSARSE.ESTE EQUIPODEBESER
USADOSOLAMENTE POR OPERA-
DORESCALIFICADOS.
LIRELEMANUEL DE L’OPERATEUR
AVANTUTILISATION.CETAPPAREIL
DOITETREUTILISEPAR DES OPERA-
TEURSQUALIFIES.
RISKOF INJURY—
PROTECTIVEEYE-
WEARAND CLOTHING
MUSTBEWORN.
whenoperatingthis
machine.
PROTEJASELOSOJOS CU-
ANDOseopereesteequipo.
DESLUNETTESDE SECURITE
DOIVENTETRE PORTEES
lorsquevousoperez cet appareil.
RISKOF
ASPHYXIATION.Use
onlyin wellventi-
latedarea.
RIESGODE ASFIXIA.Use el
productoen un area de venti-
laciónadecuada.
RISQUED’ASPHYXIE.Utiliser
dansun endroitbienaéré.
RISKOF
ELECTROCUTION.Connectonly to
properlygroundedoutlet. Keep all con-
nectionsdry and off the ground. Keep
sprayawayfromelectrical wiring and
components.Disconnectfrom electrical
supplybefore servicing.
RIESGODE ELECTROCUCIÓN—Co-
necteel enchufeenun contacto adecuado.
Mantengatodas lasconnecciones secas
yarriba del suelo.Norocie componentes
eléctricos.Desconectela
corrienteeléctrica antes de
darservicio.
RISQUE
D’ELECTROCUTION
— Relier à des prises avec
miseà la terre seulement.
T
ousles
doiventêtre
maintenussecset étre sus-
pendus.Nojamaisprojeter
del’eau sur les com-
posanteset
électriques.
Couperl’alimentatation
électriqueavant de faire une
réparation.
RISKOF INJECTION OR SE-
VEREINJURYTO PERSONS.
Keepclear of nozzle.
HOTDISCHARGE FLUID —Do
nottouch or direct discharge
streamat persons.
RIESGODE PENETRACIÓNO
LESIONESSEVERAS A PERSO-
NAS.Manténgasefueradelalcance
deboquilla.
DESCARGADE AGUACALIENTE
AALTAPRESION—No toque
nidirija el delagua a otras
personas.
RISQUEDE BLESSURES.Setenir
loindes buses.
EAUCHAUDE SOUS PRESSION A
LASORTIE— Ne pas diriger le jet
d’eauversdes personnes.
SPRAYGUNKICKS BACK
—Holdwith both hands.
LAPISTOLASE MUEVE CON
LAPRESIÓN — Sostenga con las
dosmanos.
LAPOIGNEE PISTOLETRE-
POUSSE—Tenir àdeux mains.
RISKOF INJURY—HOT
SURFACESCANCAUSE
BURNS— Use only
designedgripping areas of
spraygun and wand.
SUPERFICIESCALIENTES
—Usesolamentelas áreas
aisladasdelgatillo yla lanza.
SURFACESCHAUDES—
T
oucherseulement les parties
isoléesdes poignée pistolets
etlances.
RIESGODEEXPLOSION —Use
elproducto en áreas donde el fuego
ollamasean permitidos.No rocie
liquidos
RISQUED’EXPLOSION— Utiliser
auxendroits où une nueest
permise.Nepas vaporiserde liquides
RISKOF
EXPLOSION.Operateonly
whereopen
ortorch is permitted.
Donot spray
liquids.
RISQUEDE FEU OU D’EXPLOSION
RIESGODE INCENDIOO EXPLOSIÓN
RISKOF FIREOR EXPLOSION
• Machineneedst
obeinstalledonnon-combustible
with minimum clearanceof18”.
Beforelighting, smell allaround the appliance area for
gas.Besuretosmell nexttothebecausesomegas
isheavierthan air and will settle on theIf you smell
gas,immediatelycallyourgassupplierforinstructions.If
gassuppliercannotbereached,callthedepartment.
Donot use tools to push in or turn the gas control knob.
Ifknob will not push in or turn byhand, calla
servicetechnician.Using forceor attemptingrepairmay
resultina
or explosion.
Shouldpilotoutage occur, turncontrol knobto OFF
position.Wait5minutesbefore relighting.
Do not use this equipment if any parthas been under
water.Immediatelycall aservice technician to inspect
forrepair.
Elequipo debe ser instalado sobre un piso resistente
alincendio, con un espacio libre de 18” minimo.
Antesde encender,olfatee alrededor del aparatopara
detectargas. Esté seguro de revisar cerca del piso,
porqueciertos gases son más pesados que el aire.Si
olfateagas,avise inmediatamente a su proveedor de
gas.Alnolocalizar el proveedor, llame a los bomberos.
No use herramientaspara mover el control del gas.
Sila manijanose puedeoperarconlamano, llame a
untécnico capacitado.Forzar o intentar reparareste
controlpuede resultar en un incendio o explosión.
En el caso de apagarse el piloto,apague yespere 5
minutosantes de encender.
No utilice este equipo en el caso que hubiera estado
sumergidoenagua parcialototalmenteun compo-
nente.Consulte con un técnico de servicio.
Ne pas installerce machine aux endroits où il y a des
combustibles(mêmelesplancher)dedansun demi-mètre.
Avantl’allumage,
a
utourdel’appareilpour des
senteursde gaz.
lesodeurs près du plancher car
certainsgaz sont plus lourds que l’air et s’accumulent sur
leplancher. Si vous détectez une odeur de gaz, appelez
immédiatementvotre fournisseur de gaz.Sicelui -cine
peutêtre joint, appeler le département des incendies.
Nepasutiliser d’outilspour pousseroutournerlasoupape
decontrôledugaz.Silasoupapene peutêtreenfoncéeou
tournéeàlamain,appeleruntechnicienForcerou
essayerde réparer peut causer un feu ou une explosion.
Si lepilote s’éteint,tournerla soupapede contrôleen
positionOFF. Attendre 5minutesavant de réallumer.
Nepasutiliser cet équipement siune partieaété immergée
dansl’eau. Appeler un technicien pour inspecter celui-ci.
8.900-990.0
CHAUD!
MODELS:
HDS3.5/20
HDS4.0/22
HDS3.9/30
HDS5.0/23
HDS4.8/30
HDS6.3/32
HDS8.0/32
HDS9.5/30
For the Kärcher Dealer nearest
you, consult our web page at
www.karchercommercial.com

2Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY
Machine Data Label
Pump Switch
Voltage
When the light is on, it means power supply is on
Hour Meter
Burner Switch
Steam Combination
Detergent
Identification of Operational Label Symbols
Not all machines have all symbols
Motor Overload
When the light is on, it means the overload is tripped.
Reset overload.
Pilot Light
When the light is on, it means there is power to the pilot control.
If there is no light, see troubleshooting guide.

3
Table of Contents
Machine Data Label. . . . . . . . . . . . . . . . . . . . . . . . . .2
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . .3
How To Use This Manual . . . . . . . . . . . . . . . . . . . . .4
Safety
Introduction & Safety Information . . . . . . . . . . . . . . .5
Important Safety Information. . . . . . . . . . . . . . . . . . .5
Propane Tank Safety Instructions. . . . . . . . . . . . . .10
Operations
Component Identification - All Models . . . . . . . . . .11
Installation HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30
12
Installation HDS 6.3/32, 8.0/32, 9.5/30. . . . . . . . . .13
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Gas Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Pipe Sizing Chart for Natural Gas. . . . . . . . . . . . . .15
LP-Gas (Liquid petroleum gas or propane). . . . . . .15
Filling the LP-Gas Container. . . . . . . . . . . . . . . . . .15
Propane Tank Disposal. . . . . . . . . . . . . . . . . . . . . .15
Room Vents for Combustion and Ventilation Air. . .16
Water Source:. . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Inspection and Testing Gas Piping: . . . . . . . . . . . .17
Gas Valve Replacement: . . . . . . . . . . . . . . . . . . . .18
Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Check List Before Starting:. . . . . . . . . . . . . . . . . . .20
Assembly Instructions. . . . . . . . . . . . . . . . . . . . . . .21
Operating Instructions. . . . . . . . . . . . . . . . . . . . . . .22
Applying Detergent & General
Operating Techniques. . . . . . . . . . . . . . . . . . . . .23
Shutting Down & Cleanup. . . . . . . . . . . . . . . . . . . .24
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Maintenance
Maintenance & Service. . . . . . . . . . . . . . . . . . . . . .26
Spray Nozzles: . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Unloader Valves:. . . . . . . . . . . . . . . . . . . . . . . . . . .26
Low Pressure Diagnosis: . . . . . . . . . . . . . . . . . . . .26
High Limit Hot Water Thermostat:. . . . . . . . . . . . . .26
Pumps: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Heating Coils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Gas Valve Regulator Adjustment . . . . . . . . . . . . . .27
Propane Gas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
General Safety Precautions . . . . . . . . . . . . . . . . . .28
Burner Features . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Replace regulator adjustment screw cap.. . . . . . . .28
Burner Basic Facts . . . . . . . . . . . . . . . . . . . . . . . . .29
Pressure Equivalents . . . . . . . . . . . . . . . . . . . . . . .30
Oil Change Record . . . . . . . . . . . . . . . . . . . . . . . . .30
Preventative Maintenance . . . . . . . . . . . . . . . . . . .31
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . .31
Parts
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Frame 38
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Frame 40
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Burner 41
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Burner 42
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Coil . . 43
HDS 6.3/32, 8.0/32, 9.5/30 Frame . . . . . . . . . . . . 46
HDS 6.3/32, 8.0/32, 9.5/30 Frame . . . . . . . . . . . . 48
HDS 6.3/32, 8.0/32, 9.5/30 Burner . . . . . . . . . . . . 49
HDS 6.3/32, 8.0/32, 9.5/30 Coil . . . . . . . . . . . . . . 51
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Float Tank
53
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Float Tank
54
HDS 6.3/32, 8.0/32, 9.5/30 Float Tank . . . . . . . . . 55
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Pump. 57
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Pump. 58
HDS 6.3/32, 8.0/32, 9.5/30 Pump. . . . . . . . . . . . . 59
HDS 6.3/32, 8.0/32, 9.5/30 Pump. . . . . . . . . . . . . 60
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Tensioner
61
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Tensioner
62
HDS 6.3/32, 8.0/32, 9.5/30 Tensioner . . . . . . . . . 63
Tensioner Torque Specs & Assembly Parts. . . . . 65
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Electrical
Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
HDS 6.3/32, 8.0/32, 9.5/30 Electrical Box. . . . . . . 69
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Control
Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
HDS 6.3/32, 8.0/32, 9.5/30 Control Panel. . . . . . . 74
HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30 Panels &
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
HDS 6.3/32, 8.0/32, 9.5/30 Panels & Doors . . . . . 78
Hose & Spray Gun . . . . . . . . . . . . . . . . . . . . . . . . 80
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
NG Burner Specifications . . . . . . . . . . . . . . . . . . . .81
LP Burner Specifications. . . . . . . . . . . . . . . . . . . . .81
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
VRT3 Unloader . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
VRT100 Unloader . . . . . . . . . . . . . . . . . . . . . . . . . 87
HDS 4.0/22, 3.9/30 M.3 Series Pump. . . . . . . . . . 89
HDS 5.0/23, 4.8/30, 6.3/32 KT.2 Series Pump . . . 91
HDS 8.0/32, 9.5/30 X.2 Series Pump . . . . . . . . . . 93
HDS 3.5/20 KB Series Pump . . . . . . . . . . . . . . . . 95
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

4
How To Use This Manual
This manual contains the following sections:
• How to Use This Manual
•Safety
• Operations
• Maintenance
• Parts List
The HOW TO USE THIS MANUAL section will tell you
how to find important information for ordering correct
repair parts.
Parts may be ordered from authorized dealers. When
placing an order for parts, the machine model and
machine serial number are important. Refer to the
MACHINE DATA box which is filled out during the
installation of your machine. The MACHINE DATA box
is located on the inside of the front cover of this manual.
The model and serial numbers will be found on a decal
attached to the pressure washer.
The SAFETY section contains important information
regarding hazardous or unsafe practices of the
machine. Levels of hazards are identified that could
result in product damage, personal injury, or severe
injury resulting in death.
The OPERATIONS section is to familiarize the operator
with the operation and function of the machine.
The MAINTENANCE section contains preventive main-
tenance to keep the machine and its components in
good working condition. They are listed in this general
order:
• Maintenance And Service
• Spray Nozzles
• Unloader Valves
• Winterizing Procedure
• Low Pressure Diagnosis
• High Limit Hot Water Thermostat
• Pumps
• Heating Coils
• Pressure Relief Valve
• Propane Gas
• Burner Features
• Basic Facts
• Pressure Equivalents
• Oil Change Record
• Troubleshooting
The PARTS LIST section contains assembled parts
illustrations and corresponding parts list. The parts lists
include a number of columns of information:
•REF – column refers to the reference number
on the parts illustration.
•PART NO. – column lists the part number for
the part.
•QTY – column lists the quantity of the part used
in that area of the machine.
•DESCRIPTION – column is a brief description
of the part.
•NOTES – column for information not noted by
the other columns.
NOTE: If a service or option kit is installed on your
machine, be sure to keep the KIT INSTRUCTIONS
which came with the kit. It contains replacement parts
numbers needed for ordering future parts.
NOTE: The manual part number is located on the
lower right corner of the front cover.
Model:
Date of Purchase:
Serial Number:
Dealer:
Address:
Phone Number:
Sales Representative:
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

5
Safety
Introduction & Safety Information
Thank you for purchasing this Pressure Washer. We
reserve the right to make changes at any time
without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this pressure washer. Warning information
should be emphasized and understood. If the operator
is not fluent in English, the manufacturer’s instructions
and warnings shall be read to and discussed with the
operator in the operator’s native language by the
purchaser/owner, making sure that the operator
comprehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
The operator must know how to stop the machine
quickly and understand the operation of all controls.
Never permit anyone to operate the engine without
proper instructions.
SAVE THESE INSTRUCTIONS
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number. Use only identical replacement
parts.
This machine is to be used only by trained opera-
tors.
Important Safety Information
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result, causing
property damage, personal injury or loss of life.
AVERTISSEMENT: Si ces directives ne sont pas
suivies à la lettre, un incendie ou une explosion
pourrait survenir et entraîner des dommages à la
propriété, des lésions corporelles ou la mort.
WARNING: To reduce the risk of
injury, read operating instructions
carefully before using.
AVERTISSEMENT: Pour réduire le
risque de blessures, lire attentive-
ment les instructions de
fonctionnement avant l'utilisation.
1. Read the owner's manual thoroughly. Failure to
follow instructions and warnings could cause
malfunction of the machine and result in death,
serious bodily injury and/or property damage.
2. Know how to stop the machine and bleed pressure
quickly. Be thoroughly familiar with the controls.
3. Stay alert — watch what you are doing.
4. Use only your hand to push in or turn the gas
control knob. Never use a tool. If the knob will not
push in or turn by hand, don't try to repair it; call a
qualified service technician.
5. All installations must comply with local codes.
Contact your electrician, plumber, utility company
or the selling distributor for specific details.
DANGER: Improper connection of
the equipment-grounding
conductor can result in a risk of
electrocution. Check with a
qualified electrician or service
personnel if you are in doubt as to
whether the outlet is properly
grounded.
DANGER: Une mauvaise
connexion du conducteur de terre de l'équipement
peut entraîner un risque d'électrocution. Vérifier
auprès d'un électricien qualifié ou du personnel
d'entretien si vous avez des doutes quant à savoir si
lasortie est correctement mise à la masse.
DANGER: Keep wand, hose, and water spray away
from electric wiring or fatal electric shock may
result.
DANGER: Garder la lance, le boyau et le jet d'eau à
l'écart de tout câblage électrique ou des chocs
électriques mortels pourraient survenir.
6. To protect the operator from electrical shock, the
machine must be electrically grounded. It is the
responsibility of the owner to connect this machine
to a grounded receptacle of proper voltage and
amperage ratings. Do not spray water on or near
electrical components.
Do not touch machine with wet hands or while
standing in water. Always disconnect power
before servicing.
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY
WARNING
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
OPERATIONS
SAFETY
MAINTENANCE
DANGER
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL WIRING.

6
Safety
WARNING: Flammable liquids can
create fumes which can ignite,
causing property damage or
severe injury.
AVERTISSEMENT: Des liquides
inflammables peuvent produire
des vapeurs qui peuvent
s'enflammer, causant ainsi des
dommages à la propriété ou des
blessures graves.
WARNING: Risk of explosion — Operate only where
open flame or torch is permitted. Do not spray
flammable liquids.
AVERTISSEMENT: Risque d'explosion — Utiliser
uniquement dans des endroits où l'utilisation d'une
flamme nue ou d'une torche est permise. Ne pas
pulvériser de liquides inflammables.
WARNING: Risk of fire — Do not
change LP tanks when the
product is operating or still hot.
AVERTISSEMENT: Risque
D'incendie — Ne pas changer les
réservoirs de pétrole liquide
pendant que le produit est en
marche ou encore chaud.
WARNING: Use vapor fuel only.
AVERTISSEMENT: Utiliser Des Vapeurs De
Carburant Seulement.
7. Gas appliances shall be installed only in locations
where combustible dusts and flammable gases or
vapors are not present. Do not store or use
gasoline near this machine.
WARNING: In the event of a pilot outage, wait at
least five minutes to clear out any gas before
relighting.
AVERTISSEMENT: En cas de panne de la veilleuse,
attendre au moins cinq minutes pour permettre au
gaz de se dissiper avant derallumer.
8. Keep operating area clear of all persons.
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne and
fly at high speeds. To avoid
personal injury, eye, hand and
foot safety devices must be worn.
AVERTISSEMENT: Un jet haute
pression peut écailler la peinture
ou provoquer l'émission d'autres particules dans
l'air et leur projection à hautes vitesses. Pour éviter
les lésions corporelles, une protection des yeux,
du visage, des mains et des pieds doit être portée
lorsde l'utilisation de cet équipement.
WARNING: Always wear properly rated eye protec-
tion such as safety goggles or face shield while
spraying. (Safety glasses do not provide full protec-
tion.)
AVERTISSEMENT: Toujours porter une protection
oculaire adaptée comme des lunettes étanches ou un
écran facial pendant la pulvérisation. (Des lunettes de
sécurité ne fournissent pas une protection complète.)
WARNING: This machine exceeds
85 db appropriate ear protection
must be worn.
AVERTISSEMENT: Cette machine
excède 85 dB et une protection de
l'ouïe appropriée doit être portée.
WARNING: Risk of injury. Hot
surfaces can cause burns. Use
only designated gripping areas of
spray gun and wand. Do not place
hands or feet on non-insulated
areas of the pressure washer.
AVERTISSEMENT: Risque de
blessures. Les surfaces chaudes
peuvent causer des brûlures.
Utiliser uniquement les zones de
prise désignées du pistolet pulvérisateur et de la
lance. Ne pas placer les mains ou les pieds sur des
endroits non isolés de la laveuse à pression.
9. To reduce risk of injury, close supervision is
necessary when a machine is used near children.
Do not allow children to operate pressure washer.
This machine must be attended during opera-
tion.
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY
WARNING
USE PROTECTIVE
EYE WEAR
AND CLOTHING
WHEN OPERATING
THIS EQUIPMENT.
WARNING
EAR PROTECTION
MUST BE WORN
WARNING
RISK OF INJURY.
HOT SURFACES
CAN CAUSE BURNS
WARNING
RISK OF EXPLOSION:
IF GAS SMELL
PRESENT TURN OFF
SUPPLY
WARNING
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.

7
Safety
WARNING: Grip cleaning wand
securely with both hands before
starting. Failure to do this could
result in injury from a whipping
wand.
AVERTISSEMENT: Agripper la
lance de nettoyage avec les deux
mains avant de commencer. Le
non-respect de cette consigne
pourrait mener à des blessures
causées par le mouvement violent de la lance.
10. Never make adjustments on machine while in
operation.
11. Be certain all quick coupler fittings are secured
before using pressure washer.
WARNING: High pressure
developed by these machines will
cause personal injury or
equipment damage. Keep clear of
nozzle. Use caution when oper-
ating. Do not direct discharge
stream at people or animals, or
severe injury or death will result.
AVERTISSEMENT: La haute
pression générée par ces
machines causera des lésions corporelles ou des
dommages à l'équipement. Se tenir à l'écart de la
buse. Faire preuve de prudence lors de l'utilisation.
Ne pas décharger directement le jet vers des
personnes ou des animaux, car cela risquerait de
causer des blessures graves ou même la mort.
WARNING: Protect machine from
freezing.
AVERTISSEMENT: Protéger la
machine contre le gel.
12. To keep machine in best
operating conditions, it is
important you protect machine
from freezing. Failure to protect
machine from freezing could
cause malfunction of the machine and result in
death, serious bodily injury, and/or property
damage. Follow storage instructions specified in
this manual.
WARNING: Risk of asphyxiation.
Use this product only in a well
ventilated area.
AVERTISSEMENT: Risque
d'asphyxie. Utiliser ce produit
uniquement dans un endroit bien
ventilé.
13. Avoid installing machines in
small areas or near exhaust
fans. Adequate oxygen is needed for combustion
or dangerous carbon monoxide will result.
14. Manufacturer will not be liable for any changes
made to our standard machines or any compo-
nents not purchased from us.
15. The best insurance against an accident is precau-
tion and knowledge of the machine.
WARNING: Be extremely careful
when using a ladder, scaffolding
or any other relatively unstable
location. The cleaning area should
have adequate slopes and
drainage to reduce the possibility
of a fall due to slippery surfaces.
AVERTISSEMENT: Faire preuve
d'une extrême prudence au
moment d'utiliser une échelle, des échafaudages
ou toute autre surface relativement instable. La
zone de nettoyage doit avoir une pente et un
drainage adéquats pour réduire la possibilité d'une
chute due à une surface glissante.
16. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
17. Do not operate this machine when fatigued or
under the influence of alcohol, prescription medica-
tions, or drugs.
18. Follow the maintenance instructions specified in
the manual.
WARNING: Use vapor fuel only.
AVERTISSEMENT: Utiliser des vapeurs de
carburant seulement.
19. The LP models are designed to run on vapor
propane fuel. Do not use liquid fuel. Have a
qualified serviceman install and service your equip-
ment.
20. Neverexpose a spark or flame where there may be
unburned gas present.
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY
WARNING
PROTECT FROM
FREEZING
WARNING
RISK OF
ASPHYXIATION.
USE THIS PRODUCT
ONLY IN A WELL
VENTILATED AREA.
WARNING
RISK OF INJURY
FROM FALLS WHEN
USING LADDER.
WARNING
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.
WARNING
TRIGGER GUN KICKS
BACK - HOLD WITH
BOTH HANDS

8
Safety
21. Install optional LP gas regulator assembly, item
9.802-633.0 or obtain a proper size regulator.
22. Install this machine about 2 feet from wall to
provide adequate ventilation and servicing space.
This equipment incorporates parts such as snap
switches or similar parts that tend to produce arcs
or sparks. Therefore, when located in a garage, it
should be in a room or enclosure provided for the
purpose or should be installed 18" (457mm) or
more above the floor.
WARNING: To reduce the risk of electric shock,
disconnect all electrical connections and shut-off
gas valve before servicing.
AVERTISSEMENT: Pour réduire le risque de choc
électrique, débrancher toutes les connexions
électriques et la soupape de coupure des gaz avant
d'effectuer des opérations d'entretien.
21. Install this machine on non combustible flooring.
22. Do not allow acids, caustic or abrasive fluids to
pass through the pump.
23. Never run pump dry or leave spray gun closed
longer than 3 minutes.
WARNING: If connection is made
to potable water supply, a back
flow device must be provided.
AVERTISSEMENT: Si une
connexion est établie avec un
approvisionnement en eau
potable, un dispositif de
protection contre le retour d'eau
doit être fourni.
24. Exhaust gases should not be vented into a wall, a
ceiling or a concealed space of a building. A draft
diverter must be installed to prevent down draft and
to allow cooling of exhaust temperatures.
Down draft diverters shall be installed in the vents
and located at a distance from the pressure washer
stack to achieve maximum draft of 36" minimum.
Exhaust gases that exceed
470°F (243°C) are not
suitable for connection to
Type B gas vents.
Example of Down Draft Diverter
for Gas Fired Machines
WARNING: Do not spray machine
or any people, animals or elec-
trical parts
AVERTISSEMENT: Ne pas
vaporiser sur la machine ou les
gens, les animaux ou les pièces
électriques.
WARNING: Must be plugged into properly wired
three hole grounded outlet that accommodates
plug on power cord. Failure to comply could result
in electrical shock.
AVERTISSEMENT: Doit être raccordé dans une
sortie à trois trous mise à la masse et correctement
câblée qui peut accueillir unefiche sur un cordon
d'alimentation. Le non-respect de cette consigne
pourrait causer un choc électrique.
Follow the maintenance instructions
specified in the manual.
Suivre les instructions d'entretien
spécifiées dans le manuel.
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY
WARNING
DO NOT SPRAY
MACHINE OR ANY
PEOPLE, ANIMALS OR
ELECTRICAL PARTS.
WARNING
IF CONNECTED
TO A POTABLE
WATER SUPPLY,
PROTECT AGAINST
BACKFLOW.

9
Safety
REF PART NO. QTY DESCRIPTION
- 9.802-633.0 1 REGULATOR, LP
ASSEMBLY
1 9.802-019.0 1 NIPPLE, 3/4” X 2”, BLACK
2 8.717-747.0 1 REGULATOR, R622CFF
FOR R932/28 & R932462
3 8.717-746.0 1 REGULATOR, HI
PRESSURE, R321H22
4 8.711-855.0 1 HOSE, 1/2” X 19”,
PROPANE
5 8.717-782.0 1
FITTING,PIGTAIL,FISHER,
M318 (INCLUDED WHEN
ORDERING PART 8.717-
746.0)
To Propane
Bottle
To Pressure Washer
Gas Inlet
1
3
5
2
4
Optional
Regulator Kit
9.802-633.0
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

10
Safety
Propane Tank Safety Instructions
CAUTION: Only qualified persons should fill your
LP-gas containers.
1. Never allow your LP-gas container to be filled
above the maximum safe level as indicated by a
scale or the fixed liquid level gauge (outage). Do
not use the visible gauge for filling.
2. Do not use a wrench or pliers to close the service
valve or fixed liquid level gauge. These valves are
designed to be closed leak-tight by hand or screw-
driver as appropriate. If wrenches are necessary to
stop a leak, the valve needs repair or replacement.
3. When tightening the POL Nut (left hand thread) on
the service valve, draw it up snug with a proper
wrench. This is a machined male brass fitting
which seats securely against a female seat in the
POL valve – no pipe dope is necessary. Acme/
Type 1 valves have right handed threads which are
secure when hand tight, and on the Quick Discon-
nect/Type 2 Valves, the male connection is
inserted into the female connection on the cylinder
valve. (No wrenches required for both the Acme
and the Quick Disconnect.)
4. When using container, slowly open service valve
all the way. Listen to the regulator. A continuous
hiss may indicate a leak or an open valve on an
appliance.
5. Check all tank and the line connections periodically
to be sure they are tight. When testing for leaks,
use approved leak detector solution – not matches.
6. Make certain your container is properly fastened in
place.
7. Turn container with open part of container guard
towards frame. This protects valves and regulator
against flying rocks and mud. Transport container
in the proper position in which it is used, with the
valves closed and POL Plugs inserted for POL
Valves or Dust Caps for Acme Valves. Secure the
tank against falling or rolling.
8. Check for leaks after connecting. Apply approved
leak detector solution to connection, turn off all
burners and pilots, and open service valve. Leaks
will be detected by the growth of the bubbles. If
bubbles grow, tighten or repair the connection as
needed. Repeat leak test until problem is
corrected.
9. LP-gas is normally non-corrosive – you need not
worry about the inside of your container. However,
the outside should be kept free from rust by a
periodic coat of paint in a light reflective color. It is
very important to inspect and maintain the bottom
and foot ring on the container.
10. Do not store LP-gas containers indoors or in
enclosed areas. Do not expose LP-gas container
to heat. Always store with service valve closed and
plugged as required.
11. Do not attempt to repair any containers, container
valves, regulator or appliances by yourself. Use
only trained certified LP-gas service personnel to
perform repairs.
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

11
Operations
Component Identification - All Models
Pump — Delivers a specific gpm to the high pressure
nozzle which develops pressure. (Not Shown)
Spray Gun — Controls the application of water and
detergent onto cleaning surface with trigger device.
Includes safety latch.
Detergent Valve— Allows you to siphon and mix
detergents.
Wand — Must be connected to the spray gun.
High Pressure Hose — Connect one end to water
pump high pressure discharge nipple and the other end
to spray gun.
Rupture Disk — Secondary pressure release in the
unlikely event the unloader valve fails. (Not Shown)
Unloader Valve — Safety device which, when the
spray gun closes, prevents over pressurization. (Not
Shown)
NOTE: If trigger on spray gun is released for more
than 3 minutes, water will leak from the pump
protector. Warm water will discharge from pump
protector onto floor. This system prevents internal
pump damage.
GROUND
8
10
12
14
160
2
4
6
TACH/HOUR
TACH/HOUR
1.P
laceallswitchesinthe“OFF”position.
2.Connectpowersupplytoproperly groundedoutlet. Test
theGFCI(ifequipped)usingtheresetandtestprocedures
providedontheGFCIdevice.TheGFCImustbereset and
testedwitheveryuse.
3.S
ecurehighpressurehose, shut-off gunandwandto out-
let
4.Connectwatersupplyhoseandtur nonwater.
5.Graspwand
Placepumpswitchinthe “ON”position.
6.Turngasvalvecontrolknobto“ON”position.Pilotwilllight
automaticallywhenburnerswitchisturned“ON”.
7.Toheatwater,placeburnerswitchinthe“ON”positionand
adjustthermostattodesiredtemperature.
8.Turnondetergentandproceedwithcleaning.
9.Aftercleaning:
A.T
urnoffdetergentandrinse.
B.Placeburnerswitchinthe“OFF”position.
C.Allowmachinetodischargewaterfor2-3 minutesto
coolcoil.
D.Placepumpswitch inthe“OFF”position.
E.Squeezetriggerguntorelievesystempressure.
F
. T
urnoffwatersupply.
MODED’EMPLOI
LIRELEMANUELDEL
’OPERATEURAVANTUTILISATIONUNE
MAUVAISEUTILISATIONPEUTCAUSERDESBLESSURESOU
DOMMAGESMATÉRIELS.
INSTRUCCIONESDEOPERACION
LEAELMANUALDEOPERACIÓNANTESDEUSARSE.LAOPERACIÓN
INADECUADAPUEDEOCASIONARLESIONESPERSONALESODAÑOS
ALASPROPIEDADES.
OPERATINGINSTRUCTIONS
READOPERATINGMANUALBEFOREOPERATINGMACHINE.
IMPROPEROPERATIONMAYRESULTINPERSONALINJURYOR
PROPERTYDAMAGE.
1.Coloquetodoslosinterruptores enla posición“OFF”(APAGADO).
2.Conectelafuentedeenergíaauntomacorrienteconectadoatierrademodoad-
ecuado.PruebeelInterruptorAccionadoporCorrientede Pérdidaa Tierra(GFCI
porsussiglasenInglés)(sihubiera)mediantelosprocedimientosdereinicioy
pruebaincorporadosendichodispositivo.ElGFCIdebe reiniciarsey ponerse a
pruebacadavezqueseuse.
3.Asegurelamangueradealtapresión, pistolayvarilla alacopladordeltomacor-
riente.
4.Conectela mangueradesuministro deaguayabralallave.
5.Sujetela varilla.Coloqueelinterruptordelabombaen la posición
“ON”(ENCENDIDO).
6.Coloquelaperilladecontroldelaválvuladegasenlaposición“ON”(ENCENDI-
DO).Elpilotoseencenderáautomáticamentecuandoelquemadorseencienda.
7.Adecalentarelagua,coloqueelinterruptordelquemadorenlaposición“ON”
(ENCENDIDO)yajusteeltermostatoalatemperaturadeseada.
8.Enciendaeldetergenteyprocedaconlalimpieza.
9.Despuésdelimpiar:
A.Apagueeldetergenteyenjuague.
B.Pongaelinterruptordelquemadorenlaposición“OFF”(APAGADO).
C.Dejequelamáquina descargue agua por2ó3 minutosparaque se
enfríe elserpentín.
D.Pongaelinterruptordelabombaenlaposición“OFF”(AP
AGADO).
E.Presionelapistolaparaaliviarlapresióndelsistema.
F
.Cierreelsuministrodeagua.
1.Metteztouslesinterrupteursenposition“OFF”.
2.Connectezleblocd’alimentationélectrique àuneprisecorrectement
miseàlaterre.Testezledisjoncteurdefuitedeterre(lecaséchéant)
àl’aidedesprocéduresde réinitialisationetd’essaiindiquéessurle
disjoncteur.Ledisjoncteurdoitêtreréinitialiséettestéàchaqueutili-
sation.
3.Fixezletuyauàhautepression,lepistoletetletuberigideauraccord
desortie.
4.Connectezletuyauàeauetfaitescoulerl’eau.
5.Tenezletuberigidefermement.Mettezl’interrupteurdelapompe en
position“ON”.
6.Tournezleboutondurobinetdegazen position“ON”.Laveilleuse
s’allumeautomatiquementlorsquel’interrupteurdubrûleurestmis sur
“ON”.
7.Pourchaufferl’eau,mettezl’interrupteurdubrûleursur“ON” etréglez
lethermostat àla températurevoulue.
8.Activezledétergentetcommencezlenettoyage.
9.Aprèsle nettoyage:
A.Coupezledétergentetrincez.
B.Mettezl’interrupteurdubrûleursur“OFF”.
C.Laissezlamachineévacuerl’eaupendant2à3minutes,le
tempsquelabobinerefroidisse.
D.Mettezl’interrupteurdelapompesur“OFF”.
E.Actionnezlepistoletpourréduirela pressiondusystème.
F
.Coupezl’eau.
WARNING
PRECAUCION/ AVERTISSEMENT
TOREDUCETHERISK
OFINJURYREAD
OPERATOR’SMANUAL
CAREFULLYBEFORE
USING.THISMACHINE
TOBEUSEDONLYBY
QUALIFIEDOPERATORS.
LEAELMANUALOPERACIONANTES
DEUSARSE.ESTEEQUIPODEBESER
USADOSOLAMENTEPOROPERA-
DORESCALIFICADOS.
LIRELEMANUELDE L’OPERATEUR
AVANTUTILISATION.CETAPPAREIL
DOITETREUTILISEPARDESOPERA-
TEURSQUALIFIES.
RISKOFINJURY—
PROTECTIVEEYE-
WEARANDCLOTHING
MUSTBEWORN.
whenoperatingthis
machine.
PROTEJASELOSOJOSCU-
ANDOseopereeste equipo.
DESLUNETTESDESECURITE
DOIVENTETREPORTEES
lorsquevousoperezcetappareil.
RISKOF
ASPHYXIATION.Use
onlyinwell venti-
latedarea.
RIESGODEASFIXIA.Useel
productoenunareadeventi-
laciónadecuada.
RISQUED’ASPHYXIE.Utiliser
dansunendroitbienaéré.
RISKOF
ELECTROCUTION.Connectonlyto
properlygroundedoutlet.Keepallcon-
nectionsdryandofftheground.Keep
sprayawayfromelectricalwiringand
components.Disconnectfromelectrical
supplybeforeservicing.
RIESGODEELECTROCUCIÓN—Co-
necteelenchufeenuncontactoadecuado.
Mantengatodaslasconneccionessecas
yarribadelsuelo.Norociecomponentes
eléctricos.Desconectela
corrienteeléctricaantesde
darservicio.
RISQUE
D’ELECTROCUTION
—Relieràdesprisesavec
miseàlaterreseulement.
Tousles
doiventêtre
maintenussecsetétresus-
pendus.Nojamaisprojeter
del’eausurlescom-
posanteset
électriques.
Couperl’alimentatation
électriqueavantdefaireune
réparation.
RISKOFINJECTION ORSE-
VEREINJURYTOPERSONS.
Keepclearofnozzle.
HOTDISCHARGEFLUID—Do
nottouchordirect discharge
streamatpersons.
RIESGODEPENETRACIÓNO
LESIONESSEVERASA PERSO-
NAS.Manténgasefueradelalcance
deboquilla.
DESCARGADEAGUACALIENTE
AALTAPRESION—Notoque
nidirijaeldelaguaaotras
personas.
RISQUEDEBLESSURES.Setenir
loindesbuses.
EAUCHAUDESOUSPRESSIONA
LASORTIE—Nepasdirigerlejet
d’eauversdespersonnes.
SPRAYGUNKICKSBACK
—Holdwithbothhands.
LAPISTOLASEMUEVECON
LAPRESIÓN—Sostengaconlas
dosmanos.
LAPOIGNEEPISTOLETRE-
POUSSE—Teniràdeuxmains.
RISKOFINJURY—HOT
SURFACESCANCAUSE
BURNS—Useonly
designedgrippingareasof
spraygunandwand.
SUPERFICIESCALIENTES
—Usesolamentelasáreas
aisladasdelgatilloylalanza.
SURFACESCHAUDES—
T
oucherseulementlesparties
isoléesdespoignéepistolets
etlances.
RIESGODEEXPLOSION—Use
elproductoenáreasdondeelfuego
ollamaseanpermitidos.Norocie
liquidos
RISQUED’EXPLOSION—Utiliser
auxendroitsoùunenueest
permise.Nepasvaporiserdeliquides
RISKOF
EXPLOSION.Operateonly
whereopen
ortorchispermitted.
Donotspray
liquids.
RISQUEDEFEU OU D’EXPLOSION
RIESGODEINCENDIOOEXPLOSIÓN
RISKOFFIREOREXPLOSION
•Machineneedstobeinstalledonnon-combustible
with minimumclearanceof18”.
Beforelighting,smellallaroundtheapplianceareafor
gas.Besuretosmellnexttothe
becausesomegas
isheavierthanairandwillsettleonthe
Ifyousmell
gas,immediatelycallyourgassupplierforinstructions.If
gassuppliercannotbereached,callthe
department.
Donotusetoolstopushinorturnthegascontrolknob.
Ifknobwill notpush inorturn byhand,calla
servicetechnician.Usingforceorattemptingrepairmay
resultina
orexplosion.
Shouldpilotoutageoccur,turncontrolknobtoOFF
position.Wait5minutesbeforerelighting.
Donot usethisequipmentifanyparthasbeenunder
water.Immediatelycallaservicetechniciantoinspect
forrepair.
Elequipodebeserinstaladosobreunpisoresistente
alincendio,conunespaciolibrede 18”minimo.
Antesdeencender,olfateealrededordelaparatopara
detectargas.Estésegurode revisarcercadelpiso,
porqueciertosgasessonmáspesadosqueela ire.Si
olfateagas,aviseinmediatamenteasuproveedorde
gas.Alnolocalizarelproveedor,llamealosbomberos.
Nouseherramientas paramoverelcontroldelgas.
Silamanijanosepuedeoperarconla mano,llamea
untécnicocapacitado.Forzarointentarreparareste
controlpuederesultarenunincendioo explosión.
Enelcasodeapagarseelpiloto,apagueyespere5
minutosantesdeencender.
Noutiliceesteequipoenelcasoquehubieraestado
sumergidoenaguaparcialototalmenteun compo-
nente.Consulteconuntécnicodeservicio.
Nepasinstallercemachineauxendroitsoù ilyades
combustibles(mêmelesplancher)dedansundemi-mètre.
Avantl’allumage,
autourdel’appareilpourdes
senteursdegaz.
lesodeurs prèsduplanchercar
certainsgazsontpluslourdsquel’airets’accumulentsur
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CHAUD!
Detergent
Valve
Spray
Gun
Spray
Wand
Trigger
High
Pressure
Nozzle
Exhaust
Collar
High Pressure
Hose
Water Supply
Hose
(not included)
Pump/Burner
Switches
Access
Panel
Detergent
Line
Hot Water
Discharge
Nipple
Water Inlet
Detergent
Bucket
(not included)
Gas Inlet located at
Rear of Machine
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

12
Operations
Installation HDS 3.5/20, 4.0/22, 3.9/30, 5.0/23, 4.8/30
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY
36.00"
Minimum
Control
Panel
19.50"
Dia.
Customer
Supplied Draft
Diverter
24.00"
24.87"
4.00"
High Pressure
Out 22mm
Screw
Connection
48.54"
36.68"
24.50"
24.00"
12.00"
49.00"
Water In
3/4" GHF
21.30"
20.61"
20.61"
Exhaust Out
10" Dia.
NOTE: Draft diverter should be
installed 3 ft. above exhaust outlet.
Piping to Outside
3.70"
Floor Mounting Dimensions
3/4" Gas
Inlet
Inlet
Electrical
Connection

13
Operations
Installation HDS 6.3/32, 8.0/32, 9.5/30
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY
36"
Minimu
m
Piping to Outside
Floor Mounting Dimensions
19.50"
Dia
Customer
Supplied Draft
Diverter
Control
Panel
61.00"
17.33" 34.79"
17.36"
26.18"
3.64"
High Pressure
Out 22mm
Screw
Connection
31.77"
64.00"
26.91" 26.91"
Water In
3/4" GHF
Exhaust Out
12" Dia.
NOTE: Draft diverter should be
installed 3 ft. above exhaust outlet.
1" Gas
Inlet
Inlet
Electrical
Connection
4.00"

14
Operations
Place machine in a convenient location providing
ample support, drainage and room for maintenance
Location
The location should protect machine from damaging
environmental conditions, such as wind, rain and
freezing.
1. The machine should be run on a level surface
where it is not readily influenced by outside
sources such as strong winds, freezing tempera-
tures, rain, etc. The machine should be located
considering accessibility for the replacing of
components and the refilling of detergents, adjust-
ments and maintenance. Normal precautions
should be taken by the operator of the machine to
prevent excess moisture from reaching the
machine.
2. It is recommended that a partition be made
between the wash area and machine to prevent
direct spray from the spray gun from coming in
contact with the machine. Excess moisture
reaching the power unit or electrical controls will
reduce the machine’s life and may cause electrical
shorts.
3. During installation of the machine, beware of
poorly ventilated locations or areas where exhaust
fans may cause an insufficient supply of oxygen.
Sufficient combustion can only be obtained when
there is a sufficient supply of oxygen available for
the amount of fuel being burned. If it is necessary
to install a machine in a poorly ventilated area,
outside fresh air may have to be piped to the
burner and a fan installed to bring the air into the
area.
4. Do not locate near any combustible material. Keep
all flammable material at least 20 feet away.
Allow enough space for servicing the machine.
Local code will require certain distances from floor
and walls. (Two feet away should be adequate).
WARNING: Avoid small areas or near exhaust fans.
Gas Codes
Confer with local gas company and with proper
municipal officials regarding any specific code or regu-
lations governing the installation. The installation must
conform to local codes (NFPA 54).
Electrical
The machine, when installed, must be electrically
grounded in accordance to local codes. Check for
proper power supply using a volt meter; check the
serial plate for the correct requirements.
Gas Piping
This machine shall be rigidly connected to the gas
piping outlet and equipped with external manual shut-
off valves adjacent to such machine.All gas piping shall
be approved and installed in accordance with the
Uniform Mechanical Code.
Install a gas union in the gas line adjacent to and
upstream from the control manifold and downstream
from the manual main shut-off valve. A 1/8" NPT
plugged tapping accessible for test gauge connection
shall be installed immediately upstream of the gas
supply connection for the purpose of determining the
gas supply pressure to the burner, and to prevent
damage to gas valve.
If a manual gas shut off valve is not in the gas supply
line within six feet of the machine and in an accessible
location, one shall be installed.
Union Location
Union Connection
The following pipe sizes are just recommendations.
Always consult a local plumber and venting contractor
for local codes and regulations during installation.
Manual
Shut-Off
Valve
1/8" NPT Plugged Pressure Gauge
Port Location
Union
Drop
Floor Level
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

15
Operations
Pipe Sizing Chart for Natural Gas
The following chart is based on gas pressure in the
range 0-0.5 psi, specific gravity of 0.6 and pressure
loss of 0.5" W.C. Numbers are for straight schedule 40
pipe; fittings further reduce capacity. For example, in 1"
size, an elbow is equivalent to about 2.6 feet of pipe
and a tee is equivalent to about 5.2 feet of pipe.
Maximum capacity of pipe in cubic feet/hr of natural gas
(Multiply values by 1000 to get nominal BTU/hr capacity.
LP-Gas (Liquid petroleum gas or propane)
LP-gas is gas compressed into liquid form for easy
transportation and storage. It is also known as propane
or bottle gas. (Propane tanks are not supplied with this
equipment.)
LP-gas is flammable, is always contained under
pressure and the liquid can freeze skin. Therefore, in
the interest of safety, it is important to understand the
basic facts about LP-gas and LP-gas containers.
Federal DOT (Department of Transportation) regula-
tions require periodic inspections and re-qualifications
of cylinders. DO NOT USE damaged or rusted
containers.
DO NOT store LP-gas containers indoors or in
enclosed areas. Do not expose LP-gas container to
heat. Always store with service valve closed and
plugged as required.
CAUTION: Use LP-gas containers in proper
position.
ATTENTION : Utiliser des contenants de gaz de
pétrole liquéfié en position appropriée.
Most LP-gas pressure washer heaters are designed to
operate on LP-gas vapor only. Therefore, all LP-gas
containers designed for vapor service must be trans-
ported, installed and used in the proper position. Do not
transport, install or use a vertical cylinder in a horizontal
or upside down position. Proper care must be taken to
position a horizontal container in the correct position for
vapor withdrawal. Liquid LP-gas could enter the system
designed for vapor only, possibly creating a hazardous
condition.
Always use a POL plug installed on a POL valve or a
dust cap on an ACME/Type 1 valve when transporting
or storing disconnected containers (full or empty).
Check for leaks after connecting.Apply approved leak
detector solution to connection, turn off all burners and
pilots and open service valve. Leaks will be detected by
the growth of bubbles. If bubbles grow, tighten or repair
the connection as needed. Repeat leak test until
problem is corrected.
Check all tank and the line connections periodically to
be sure they are tight. When testing for leaks, use
approved leak detector solution — not matches.
Improved Regulation: The second stage regulator
receives a relatively uniform pressure from the first
stage regulator. This helps the second stage regulator
to maintain appliance pressure at a nearly constant 11"
W.C.
Filling the LP-Gas Container
Only qualified persons should fill your LP-gas
containers.
CAUTION: Overfilling is hazardous!
ATTENTION : Le remplissage excessif est
dangereux.
DO NOT allow your LP-gas container to be overfilled.
Stop filling when liquid appears at the fixed level gauge.
Bleed off excess propane in a safe area. Most LP-gas
containers are equipped with a fixed liquid level gauge
which contacts the liquid level at 80% of container
capacity, allowing 20% for expansion. LP-gas
containers not equipped with a fixed liquid level gauge
can only be filled by weight.
In cold climates, in order to keep vaporization of LP-gas
at the highest level, keep the fuel levels above 50%.
Propane Tank Disposal
Propane tanks present a real danger in the waste
stream, so it is essential to properly dispose of old
tanks so they do not injure you or sanitation workers.
The best way to dispose of unused propane tanks is by
calling a propane company to pick it up. Propane tanks
are not picked up by garbage collectors, and improper
disposal is illegal in some areas. If a propane tank is
unfit for service, one should contact a propane
company.
Length of
Pipe (ft.) Iron Pipe Size
3/4" 1" 1 -1/4" 1- 1/2" 2"
10 360 680 1400 2100 3950
20 250 465 950 1460 2750
30 200 375 770 1180 2200
40 170 320 660 990 1900
50 151 285 580 900 1680
60 138 260 530 810 1520
70 125 240 490 750 1400
80 118 220 460 690 1300
90 110 205 430 650 1220
100 103 195 400 620 1150
150 84 160 325 500 950
200 72 135 280 430 800
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

16
Operations
Room Vents for Combustion and
Ventilation Air
Properly sized vents are vital for the safe and efficient
operation of a pressure washer installed in a confined
space. When combustion and ventilation air are
supplied from inside the building, each opening must
have an area of one square inch for every 1,000 BTUH
input. When combustion air is supplied from the
outside, each opening must have an area of one
square inch for every 2,000 BTUH for horizontal ducts
and one square inch for every 4,000 BTUH for vertical
ducts (refer to NFPA 54). See Figure 3.
NOTE: Air vents for combustion and ventilation and
exhaust flue sizing must conform to methods outlined
in current American Standard (ANSI-Z223.1),
National Fuel Gas Code of National Standard of
Canada CSA-149.1 and CSA-149.2 “Installation
Code for Gas Burner Appliances”.
Exhaust Stack
The purpose of venting a gas-fired pressure washer is
to completely remove all products of combustion and to
vent gasses to the outside air without condensation in
the vent or spillage at the draft hood (except in cases of
downdraft or poor stack conditions).Always use strong,
gas-tight, insulated pipe.
The design of this pressure washer depends on natural
draft (heat induced) to pull combustion gasses out of
the combustion chamber. The design of the exhaust
stack can have a significant impact on the proper
operation of the burner and coil.
During vent installation, avoid sharp turns, long hori-
zontal runs and improper pitches. Maintain proper
support of vent connectors and joints, observe clear-
ances from all combustibles and top the vent outlet with
an approved cap.
Type “B”, due to its temperature rating, can only be
used with natural draft pressure washers. A “B” vent is
designed for exhaust temperatures not to exceed
470°F (245°C).
All venting installations must conform to local codes. In
the absence of local codes, refer to “National Fuel Gas
Code” NFPA 54 and be constructed of materials
approved by the Uniform Building Code.
Vents penetrating ceilings or walls should be double-
wall approved appliance vents and should be one to
two inches from combustibles. Vents passing through
enclosed spaces and vents exposed to the weather
should also be the double-wall type. Sometimes vents
have to be built of such great length that they come
apart at their joints under their own weight. These
should be screwed together at the joints with sheet
metal screws, usually three per joint. If the inspector
indicates that the vent is too close to combustibles, it
may be necessary to chisel away some of the combus-
tible or route the vent pipe around the combustible. The
cross-sectional area of any flue shall not be less that
the cross-sectional area of the flue vent connection
outlet of machine.
Ventilation
The pressure washer includes a collar that will mate
with standard HVAC ducting. The user will be respon-
sible for installation of an exhaust stack. The exhaust
stack should include a Draft Diverter/Inducer, Damper,
Sampling Port and Rain Cap. An adapter can be
installed between the collar and stack to adjust the
diameter from 10” to 8” or 12” to 10”.
Size the stack according to the following (see also
applicable local and national standards regarding
installation of gas-fired appliances):
• 3.5 to 4.4 gpm 10” Collar 8” Stack
• 4.5 to 5.5 gpm 10” Collar 10” Stack
• 6.3 gpm 12” Collar 10” Stack
• 8 – 10 gpm 12” Collar 12” Stack
Draft Diverter/Hood: The draft required to vent
combustion gases is created by the heat inside the
pressure washer coil. A draft diverter helps improve
draft into the stack without pulling more air through the
combustion box and decreasing combustion effi-
ciency.The draft diverter can also help prevent back
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY
Illustration showing air openings necessary
to supply air for combustion when installed
in an enclosed room.
Draft Diverter
Required
8.717-728.0 8"
9.801-040.0 10"
8.717-730.0 12"

17
Operations
drafting that can inhibit combustion. The draft diverter
should be installed a minimum of 36” above the flue
collar.
Power Vent (Draft Inducer): If this machine is going to
be installed on a 90° or extended exhaust vent run
length which may restrict air flow it is recommended
that a contractor install a power vent. When a
contractor has found it impossible to vent straight
through the roof power venting is recommended to
help eliminate exhaust restriction of this natural draft
machine. This draft inducer (power vent) must be
installed by a licensed contractor who can calculate
size, operation connections and associated damp-
eners. Since we are a manufacturer and not a licensed
contractor and as such we are unable to make recom-
mendations for suitable make and model of power
vents and compliance with local building codes.
Damper: An exhaust stack can reduce thermal effi-
ciency by drawing in too much combustionair. This can
be controlled by adding a damper just below the draft
diverter. 8.753-473.0 - 8" Damper, 8.753-474.0 --10”
Damper, 8.753-418.0 - 12" Damper.
NOTE: Closing the damper can create high levels of
CO in the exhaust. Adjustments to the damper should
only be performed by a trained technician using a flue
gas analyzer. If an analyzer is not used the damper
should be set in the fully open position.
Sampling Port: A port for sampling flue gases and
measuring the flue gas temperature should be placed
18” above the flue collar. The port should be covered
when sampling is not being performed. The size of the
port should be only slightly larger than the probe for the
flue gas analyzer.
Rain Cap: A rain cap should be installed on top of the
stack to prevent rain water, leaves and debris from
entering the stack. Your installer may also recommend
specialty caps for high wind areas or cold weather
zones to help prevent back drafting. 8.717-731.0 - 10"
Raincap, 8.717-732.0 - 12" Raincap
Water Source:
The water source for the machine should be supplied
by a 5/8” I.D. garden hose with a city water pressure of
not less than 30 PSI. If the water supply is inadequate,
or if the garden hose is kinked, the machine will run
very rough and the burner will not fire.
Water Connection:
Connect the high pressure hose by pulling the coupler
collar back and then inserting it onto the discharge
nipple. Secure it by pushing the collar forward.
Attach the wand into the spray gun using teflon tape on
the pipe threads to avoid leaks.
Inspection and Testing Gas Piping:
The building structure should not be weakened by
installing the gas piping. The piping should not be
supported by other piping, but should be firmly
supported with gas hooks, straps, bands or hangers.
Butt or lap welded pipe should not be run through or in
an air duct or clothes chute.
Before turning gas under pressure into piping, all
openings from which gas canescape should be closed.
Immediately after turning on gas, the system should be
checked for leaks. This can be done by watching the
1/2 cubic foot test dial for 5 minutes for any movement
or by soaping each pipe connection and watching for
bubbles. If a leak is found, make the necessary repairs
and repeat the above test.
Defective pipes or fittings should be replaced and not
repaired. Never use a flame or fire in any form to locate
gas leaks — use a soap solution.
After the piping and meter have been checked
completely, purge the system of air. DO NOT bleed the
air inside an enclosed room.
During pressure testing of the system at test pressures
in excess of 1/2 PSIG, the pressure washer and its indi-
vidual shut-off valve must be disconnected from gas
supply piping system or damage to the gas valve will
occur.
Gas Pressure:
The incoming gas pressure must be a minimum of 9.0
wc-in and must not exceed 13.8 wc-in or ½ psig to the
control valve. Line pressure above ½ psig must be
regulated prior to the machine. The ideal supply
pressure is 13.0-13.5 wc-in. If the required BTU input
can not be achieved consult the factory for instructions
regarding changes to the nozzle orifice size and an
appropriate manifold setting.
NOTE: Any changes to the burner and manifold
pressure setting should only be performed by a
trained technician and adjusted using a flue gas
analyzer.
The manifold pressure has been preset at the factory
according to the table below for optimum operation at
sea-level. The manifold pressure and BTU input will be
listed on the specification plate for the machine.
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

18
Operations
For Tech Tip Instructions
Combustion efficiency in a natural draft pressure
washer is significantly influenced by the heat created
inside the coil, the design of the coil and flue and the
length and diameter of the exhaust stack. The table
below shows data included in the operator’s manual for
flue and stack sizes and gas manifold pressure
settings. These sizes are critical for achieving proper
combustion and acceptable emissions.
Testing has shown that simply adding a 36” stack
extension to the flue adapter on top of the pressure
washer can reduce the outlet temperature by 5-10°F.
This occurs by inducing a higher pressure differential at
the exit of the coil and increasing the flow of air into the
combustion process and through the stack. Most or all
of the lost outlet temperature can be recovered by
installing and adjusting a damper in the stack. However
this adjustment must only be performed by a trained
technician using a combustion analyzer. An adequate
combustion analyzer can be purchased for a little at
$500 (Bacharach Fyrite Tech, Testo 310). The analyzer
must determine percent oxygen and/or percent excess
air as a minimum.
The damper should be installed 24-36” above the flue
adapter. The pressure washer can be operated safely
with the damper fully open but with the lower outlet
temperature. If the damper is closed too far there will
not be enough oxygen to burn all of the fuel. This will
cause higher and potentially dangerous levels of CO in
the flue gas emissions.
To adjust the damper for proper combustion and effi-
ciency perform the following:
1. If there is no sample port for the analyzer probe,
drill a hole slightly larger than the combustion
analyzer probe through the exhaust stack at a point
about 18” above the flue adapter.
2. Insert the probe of the combustion analyzer so that
the tip is at the center of the stack.
3. Open the damper to the fully open position.
4. Start the pressure washer and allow it to heat up
for at least 20 minutes before making any adjust-
ments.
5. Note the values for% Excess Air and/or % Oxygen.
6. Close the damper in small increments until %
Excess Air is between 20-30% and/or % Oxygen is
4-5%.
This process can also be used when turning down the
firing rate for high altitude installations above 2000 ft.
1. Adjust the gas pressure down 4% for every 1000 ft
of elevation.
Example: Recommended firing rate for a 4.8@3000 is
4.2 wc-in. For an installation at 3500 feet reduce this
pressure by 16% by setting the manifold pressure to
4.2*.84 = 3.5 wc-in.
Amanometer capable of reading to at least the nearest
0.1 wc-in will be required for this adjustment. These can
be found for less than $200 (Extech HD700).
Follow steps 1-6 above to optimize the outlet tempera-
ture of the pressure washer.
Installations Above 2000 ft:
Installation at altitudes greater than 2000 ft will require
adjustments to the gas manifold pressure.
For installations above 2000 feet the firing rate should
be reduced by 4% per 1000 feet. Example: Recom-
mended firing rate for a 4.8@3000 is 4.2 wc-in. For an
installation at 3500 feet reduce this pressure by 16% by
setting the manifold pressure to 4.2*.84 = 3.5 wc-in.
This adjustment should only be made by a properly
trained service technician. Amanometer capable of
reading to the nearest 0.1 wc-in will be required for this
adjustment.
In Canada, certification for installation at altitudes over
4500 feet is the jurisdiction of local authorities.
Gas Valve Replacement:
If you replace your gas valve the manifold pressure for
the new valve will need to be adjusted to match the
specification plate for the machine. Follow the installa-
tion and adjustment instructions provided with your
replacement valve. Amanometer capable of reading to
the nearest 0.1 wc-in will be required for this adjust-
ment.
NG LP
Model Collar Stack wc-in kBTU-in wc-in kBTU-in
3.5@2000 10" 8" 3.6 310 7.8 310
3.9@3000 10" 8" 3.4 354 7.4 354
4@2200 10" 8" 5.1 364 11.2 364
4.8@3000 10" 10" 4.2 415 9.1 415
5.0@2300 10" 10" 4.7 437 9.5 439
6.3@3200 12" 10" 4.3 507 7.4 507
8@3200 12" 12" 3.1 658 7.0 658
9.5@3000 12" 12" 5.4 816 10.0 775
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

19
Operations
CAUTION: All gas conversion must be done by a
qualified service person in accordance with these
instructions and in compliance with all codes and
requirements. In Canada, gas conversion shall be
carried out in accordance with requirements of the
Provincial Authorities having jurisdiction and in
accordance with the requirements of the CAN/GGA-
B149.1 and .2 installation code.
Start-up
WARNING: Read and follow instructions carefully
when installing or servicing machine. Failure to do
so may result in damage to property or personal
injury.
1. Installation or servicing of gas
appliances and controls must only be performed by
qualified personnel. After installation or servicing,
test the manual valve, operating valves, pressure
regulation, and automatic shut-off valve for proper
operation.
2. Install in a suitable dry location. Machine must be
located in an area properly protected from weather.
3. Shut off gas and electricity before starting installa-
tion or service. Turn back on to test or operate.
4. DO NOT connect machine before pressure testing
the gas piping. Damage to gas valve may result.
(9" - 14" W.C.P. or 1/2 PSIG)
5. DO NOT insert any object other than suitable pipe
or tubing in the inlet or outlet of the gas valve.
Internal damage may occur and result in a
hazardous condition.
6. DO NOT short the gas valve terminals.
7. DO NOT grip gas valve body with a pipe wrench or
vise. Damage may result causinggas leak
age. Use
inlet or outlet bosses or a special body wrench.
8. DO NOT allow any flame to impinge on the
regulator vent tubing if supplied. It may clog and
cause gas valve malfunction.
9. DO NOT use the gas cock to adjust gas flow.
10. If main burner fails to shut off, turn off gas supply.
11. Keep all combustible materials away from gas
appliances. DO NOT allow lint or dust to collect in
burner area.
12. Dials must only be operated by hand. Never use
pliers, wrenches or other tools to turn dials.
13. Leak test with a soap solution after installation or
service with the main burner on. Coat pipe and
tubing joints, gaskets, etc.
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING
If you do not follow these instructions exactly, a fire or
explosion may result, causing property damage, personal
injury or loss of life.
A. This appliance has a pilot which must be lighted by
hand. When lighting the pilot, follow these instructions
exactly.
B. BEFORE LIGHTING smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
“FOR YOUR SAFETY
“WHAT TO DO IF YOU SMELL GAS”
• Do not try to light any appliance.
• Do not touch any electrical switch, do not use
any phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach your supplier, call the fire dept.
C. Use only your hand to push in or turn the gas control
knob. Never use tools. If the knob will not push in or turn by
hand, don't try to repair it; call a qualified service technician.
Forced or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been underwa-
ter. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the control
system and any gas control which has been under water.
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY

20
Operations
Check List Before Starting:
CAUTION! If “NO” has been checked on any of the
following sixteen questions, do not operate this
machine.
ATTENTION : Si la réponse à l'une des questions
ci-dessus est « NON », ne pas utiliser la machine.
YES NO
Has gas supply been inspected by an
authorized contractor to meet local
codes?
Is machine protected from downdraft
and excessive wind?
Is machine shielded from moisture or
water spray?
Is the voltage correct and are the circuit
breaker and supply cord adequate
according to specifications and serial
plate notation?
Is the machine electrically grounded?
Is there ample water supply?
Have all flammable liquids or gases
been removed from installation
location?
Is there adequate gas supply for the
BTU rating of the burner?
"Is incoming gas supply pressure
between 6" - 14" water column inches or
1/2 PSIG?"
Has the proper gas regulator been
installed for pressure and volume?
Have you installed the optional LP gas
regulator assembly 9.802-633.0?
Is the machine properly vented to allow
adequate air flow?
Are the propane tanks large enough,
according to rating to prevent freezing?
Have gas lines been checked for gas
leaks?
Have gas lines been checked with local
codes?
Have all operators using this machine
been instructed properly and have they
read the manual?
Has the machine been installed
according to operator's manual instruc-
tions?
Karcher Liberty HDS Stationary Dealer’s Manual 9.801-508.0 -AY