HD 10/25 S USA
5.961-067 A 2007321 01/04
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HD 10/25 S USA
4
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Operating Instructions HD 10/25 S USA
GROUNDING INSTRUCTIONS
IMPORTANT SAFETY
INSTRUCTIONS
This product must be grounded. If it should
malfunction or breakdown, grounding
provides a path of least resistance for electric
current to reduce the risk of electric shock.
This product is equipped with a cord having
an equipment-grounding conductor and a
grounding plug. The plug must be plugged
into an appropriate outlet that is properly
installed and grounded in accordance with all
local codes and ordinances.
WARNING - When using this product basic
precautions should always be followed,
including the following:
1. Read all the instructions before using the
product.
2. To reduce the risk of injury, close super-
vision is necessary when a product is
used near children.
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. Do not modify the plug provided
with the product - if it will not fit the outlet, have
a proper outlet installed by a qualified electri-
cian. Do not use any type of adaptor with this
product.
3. Know how to stop the product and bleed
pressures quickly. Be thoroughly familiar
with the controls.
4. Stay alert - watch what you are doing.
5. Do not operate the product when fatigued
or under the influence of alcohol or drugs.
6. Keep operating area clear of all persons.
7. Do not overreach or stand on unstable
support. Keep good footing and balance
at all times.
GROUND FAULT CIRCUIT
8. Follow the maintenance instructions
specified in the manual.
INTERRUPTER PROTECTION
To comply with the National Electrical Code
(NFPA 70) and to provide additional
protection from the risk of electric shock, this
pressure washer should only be connected to
a receptacle that is protected by a ground fault
circuit interrupter (GFCI).
"This Product Shall Only Be Connected To A
Power Supply Receptacle Protected By A
Ground Fault Circuit Interrupter."
"WARNING - Risk of Injection or Injury - Do
Not Direct Discharge Stream At Persons."
5
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Operating Instructions HD 10/25 S USA
English
This appliance is intended for commercial
use.
EXTENSION CORDS
Use only 3-wire extension cords that have 3-
prong grounding-type plugs and 3-pole cord
connectors that accept the plug from the
product. Use only extension cords that are
intended for outdoor use. These extension
cords are identified by a marking "Acceptable
for use with outdoor appliances: store indoors
while not in use." Use only extension cords
having an electrical rating not less than the
rating of the product. Do not use damaged
extension cords. Examine extension cord
before using and replace if damaged. Do not
abuse extension cord and do not yank on any
cord to disconnect. Keep cord away from heat
and sharp edges. Always disconnect the
extension cord from the receptacle before
disconnecting the product from the extension
cord.
Do not spray electrical apparatus and wiring.
This machine has been designed for use with
cleaning chemicals supplied or recommended
by the manufacturer. The use of other
cleaning chemicals may affect the operation
of the machine and void the warranty.
SAVE THESE INSTRUCTIONS.
WARNING - To reduce the risk of
electrocution, keep all connections dry and off
the ground. Do not touch plug with wet hands.
WARNING - To reduce the risk of fire, electric
shock or injury:
Injection hazard: equipment can cause
serious injury if the spray penetrates the skin.
Do not point the gun at anyone or any part of
the body. In case of penetration seek medical
aid immediately.
This system is capable of producing 250000
kPa. To avoid rupture and injury, do not
operate this pump with components rated less
than 250000 kPa working pressure (including
but not limited to spray guns, hose and hose
connections.)
Before servicing, cleaning, or removal of any
part, shut off power and relieve pressure.
High Pressure. Keep clear of nozzle.
Close cover before operating machine.
Warning: If connection is made to a potable
water system, the system shall be protected
against backflow.
6
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English
Operating Instructions HD 10/25 S USA
Unit components
For your safety
Please fold out illustration page at the front
1 Hand-held spray gun
2 Lever of hand-held spray gun
3 High-pressure hose
4 Handgun support
Before you use the cleaner for the first time,
read these operating instructions and take
special note of the accompanying booklet
"Safety Instructions for High-Pressure Clean-
ers" No. 5.951-949.
5 Detergent metering valve
6 Cap for detergent reservoir
7 Detergent reservoir
8 Detergent suction-hose with filter
9 Fastening screw for hood
10 Unit switch
Use of the cleaner
Use this unit exclusively for
– cleaning with high-pressure jet and deter-
gent (e.g. cleaning of machines, vehicles,
buildings, tools),
11 Hood
– cleaning with high-pressure jet without de-
tergent (e.g. cleaning facades, terraces,
gardening equipment).
12 Pressure gauge
13 High-pressure outlet
14 Nozzle rest
For stubborn dirt we recommend the dirt
blaster as an optional accessory.
15 Water connection
16 Fine filter
17 Oil level display
Safety features
18 Oil reservoir
19 Indicator light
20 Hose rest
Relief valve with pressure
switch
On reducing the flow rate with the pressure
and flow control, the relief valve opens and
part of the water runs back to the suction side
of the pump.
21 Detergent reservoir vent
22 Accessories box
23 Cable holder
24 Handle
25 Nozzle
If the lever of the hand-held spray gun is re-
leased, the pressure switch switches the
pump off. If the lever is retracted, the pressure
switch switches the pump on again.
26 Marking of the nozzle
27 Spray lance
28 Pressure/flow control
29 Safety catch of hand-held spray gun
The overflow valve and pressure switch have
been set and sealed at the factory.
Adjustments are made only by Customer
Service.
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Operating Instructions HD 10/25 S USA
English
Preparing the unit for use
Switching on the unit
Unpack the unit
Electrical connection
– When unpacking the unit, check the con-
tents of the packaging. If there has been
any damage in transit inform the dealer.
Caution!
The voltage specified on the model rat-
ing plate must correspond to the voltage sup-
plied.
– Do not dispose of the packaging with the
household rubbish, hand it in at the appro-
priate collection point for recycling.
Caution!
The maximum tolerable mains
impedance at the electrical contact point (see
Technical Data) must not be exceeded.
Check the oil level
Caution!
„ Read the oil level displayed while unit is at
a standstill. The oil level must be above the
two indicators.
Use an extension cable with a sufficient
cable cross-section (see Technical Specifica-
tions) and unwind it fully from the cable drum.
Activate the oil reservoir vent
„ Unscrew the fastening screw of the hood
For connected loads see model rating plate/
Technical Specifications.
and remove the hood.
Caution!
It is essential that the unit is connected
to the power supply by means of a plug. An in-
separable connection to the power supply is
prohibited. The plug is used to disconnect
from the mains.
„ Cut off the tip on the cover to the oil reser-
voir.
„ Fasten the unit cover.
Mount the accessories
„ Mount nozzle on the spray lance (see
markings on the top of the setting ring).
Water connection/Suction feed
operation
„ Fit the spray lance to the hand-held spray
gun with pressure and flow control.
Connection to water main
„ Lock cable clincher into bore lateral to the
Caution!
handle.
Pay attention to the regulations of the
water supply company; according to DIN
1988, the unit may not be connected direct to
the public drinking water supply. A short-term
connection via a non-return valve
(Order no. 6.412-578) is allowed.
„ Tighten the high-pressure hose according-
ly.
For connected loads see Technical Specifica-
tions.
„ Connect a supply hose (not supplied) to the
water outlet on the unit and to the water in-
let (e.g. water tap).
„ Open water inlet.
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Operating Instructions HD 10/25 S USA
Suctioning water from an open container
Selecting the type of spray
The handgun must be closed.
„ Screw suction hose with filter
(Order no. 4.440-238) to the water outlet.
„ Rotate the housing of the nozzle until the
desired symbol corresponds with the mark-
ing.
„ Vent the unit before using.
„ To evacuate air from the unit, unscrew the
nozzle and leave the unit running until wa-
ter exits with no air bubbles.
„ Select pencil jet or fan jet by contactless
changeover:
„ Switch off the unit and screw the nozzle
back on.
rotate the spray lance, which is pointing
down at an angle of approx. 45°, to the left
or right.
Explanation of the symbols
Operating the unit
High-pressure pencil jet (0°),
for particularly stubborn accumu-
lation of grime.
High-pressure fan jet (25°), for
dirt accumulation over a large
surface.
Danger!
!
Observe the relative safety regulations
when using the unit at filling stations or other
high-risk areas.
Caution!
Low-pressure fan jet (CHEM)
for operation with detergent or for
cleaning at low pressure.
Only clean engines in places which
have appropriate oil separators (protection of
the environment).
Caution!
Only wash animals with the low-
pressure fan jet (see "Selecting the type of
spray").
Operating with high pressure
The unit is equipped with a pressure switch.
The motor only starts up when the lever is re-
tracted.
„ Set the unit switch to "I". The indicator light
will go green.
„ Unlock the hand-held spray gun and retract
the lever of the gun.
„ Adjust operating pressure and flow rate
(+/–) by rotating the pressure/flow control
(infinitely variable).
„ At the lowest flow rate the waste heat from
the motor will heat the water to approx.
15 °C.
9
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Operating Instructions HD 10/25 S USA
English
Operating with detergent
Interrupting the operation
Caution!
„ Release lever of the handgun, the unit
switches off. Retract lever again and the
unit switches on again.
Unsuitable detergents can harm the
cleaner and the object which is to be cleaned.
Use only detergents which are released by
Kärcher. Proportions of detergent to be used
and accompanying instructions should be not-
ed carefully. Use detergents sparingly out of
consideration for the environment.
Availability time
Within the availability time, the unit starts
when the hand-held spray gun is opened.
The indicator light will go green.
Kärcher cleaning agents guarantee trouble-
free operation. Please seek advice or ask for
our catalogue of information sheets on clean-
ing agents.
If the spray gun remains closed for
30 minutes, the availability time ends.
The indicator light will flash green.
„ Fill detergent reservoir.
Reset availability time
„ Switch off the unit switch.
„ Wait a moment.
„ Set nozzle to
.
„ Set the detergent metering valve to the
desired concentration.
„ Switch the unit back on again.
Concentration of detergent when flow at
maximun:
Customer Service can change the unit to
permanent operation.
Position of metering
valve
1
3
5
7
Switching the unit off
„ Set unit switch to "0" and pull out power
plug.
0.5 2.5 5.0 7.0
%
%
%
%
„ Close water inlet.
„ Retract lever until the unit is without pres-
sure.
Recommended cleaning methods
„ Spray detergent with low pressure jet spar-
ingly over the dry surface to be cleaned and
let it take effect but not dry out.
„ Push safety catch of the hand-held spray
gun forward to lock the lever of the gun
from being actuated inadvertently.
„ Spray off (rinse off) the loosened dirt using
the high-pressure spray.
Danger!
!
Risk of scalding due to hot water. Re-
„ When you have finished the operation, set
detergent metering valve to "0" and switch
the unit on for about 1 minute and rinse it
clear of detergent.
sidual water contained in the switched off unit
can heat up. When removing the hose from
the water inlet, the heater water can spurt out
and cause scalds. Do not remove the hose
until the unit has cooled down.
Transporting the cleaner
„ To transport the cleaner over relatively long
stretches, take hold of it by the handle and
pull it along behind you.
„ Empty the detergent reservoir before trans-
porting it horizontally.
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English
Operating Instructions HD 10/25 S USA
Storing the cleaner
Before each use
„ Place the handgun in the support.
„ Check connecting cable for damage (risk of
getting an electric shock), have a damaged
connecting cable replaced without delay by
authorised Customer Service personnel or
an electrician.
„ Reel in the high-pressure hose and hang it
over the hose rest.
or
„ Coil the connecting cable round the cable/
hose rest.
„ Check high-pressure hose for damage
(danger of explosion), replace a damaged
high-pressure hose without delay.
Frost protection
„ Check unit (pump) for any leaks.
Three drops per minute are allowable and
can appear on the underside of the unit.
Seek the help of Customer Service if leaks
are more serious.
Caution!
Frost will destroy a unit that is not com-
pletely empty of water! Store the unit where it
will be free of frost.
If storage away from frost is not possible:
„ Empty the detergent tank (see care and
maintenance/As and when required).
Every week
„ Check oil level in oil reservoir: if the oil is
milky (water in oil), seek the help of Cus-
tomer Service immediately.
„ Drain off the water and rinse the unit
through with anti-freeze.
„ Leave the unit to dry for max. 1 minute.
„ Clean the fine filter.
„ Use the standard glycol-based anti-freezes
for cars.
– Unpressurize unit.
– Unscrew the fastening screw of the hood
and remove the hood.
„ Follow the handling instructions of the anti-
freeze manufacturer.
– Unscrew the cover with filter.
– Clean the filter with clean water or com-
pressed air.
Care and maintenance
– Reassemble in the reverse order.
„ Clean the filter at the suction hose for de-
tergent.
Danger!
!
Before any care and maintenance work
on the unit draw out the mains plug.
Annually or after 500 operating
hours
Caution!
When changing the oil, dispose of any
waste oil only at authorised collection points.
„ Change the oil
– For oil quantity and type see Technical
Specifications.
Safety inspection/Maintenance
contract
You can arrange with your dealer to have a
regular safety inspection carried out or to
have a maintenance contract. Please seek
advice.
– Undo the fastening screw, remove the
hood, unscrew the front oil drain plug on
the motor housing.
– Drain oil into a suitable container.
– Screw in the oil drain plug.
– Fill slowly with fresh oil; air bubbles have
to escape.
11
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Operating Instructions HD 10/25 S USA
English
Fault display
As and when required
„ Emptying and cleaning the detergent tank
„ 1 x flashing red:
– High-pressure side leaking. Check high-
pressure hose, hose connections and
hand-held spray gun for leaks.
– Pull out the screw cap and hose for the
detergent tank.
– Place the unit on its rear.
„ 2 x flashing red:
– Empty and clean the detergent tank.
– Motor too hot. Switch off the unit switch.
Leave unit to cool down. Switch the unit
back on again.
Troubleshooting
„ 3 x flashing red:
– Fault in the power supply. Check the
mains connection. Check supply fuses.
Danger!
!
Before any repair work is undertaken,
„ 4 x flashing red:
switch the unit off and pull out the power plug.
Have electrical components checked and re-
paired only by authorised Customer Service
personnel.
– Current consumption too high. Consult
Customer Service
For faults which are not identified in this chap-
ter, or when in doubt or when expressly in-
structed to do so, consult authorised
Customer Service personnel.
Unit does not work
„ Availability time has run out. The indicator
light will flash green. Switch the unit off and
then on again.
Indicator light
„ Check connecting cable for damage.
The indicator light shows the operating status
(green) and faults (red).
„ Consult Customer Service if there is an
electrical fault.
To reset:
Unit does not come up to pres-
sure
„ Switch off the unit switch.
„ Wait a moment.
„ Set nozzle to "high pressure".
„ Switch the unit back on again.
„ Clean/replace nozzle.
Operating status display
„ Constant green light:
– Unit is operational.
„ 1 x flashing green:
„ Clean the fine filter, replace if required.
„ Evacuate air from the cleaner (see Switch-
ing on the unit).
„ Check water inlet volume (see Technical
Specifications).
– Operational readiness expired after
30 minutes.
„ Check all supply lines to the pump for leaks
or obstructions.
– The unit switched off after 30 minutes of
permanent operation (safety feature in
the case of a burst high-pressure hose).
„ Seek the help of Customer Service if nec-
essary.
12
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Operating Instructions HD 10/25 S USA
Pump is leaky
Spare parts
„ Three drops per minute are allowable and
can appear on the underside of the unit.
Seek the help of Customer Service if leaks
are more serious.
You will find a list of spare parts at the end of
these operating instructions.
Pump makes a knocking noise
„ Check all supply lines as well as the deter-
Warranty
gent system for leaks.
The warranty terms issued by our authorised
marketing company are valid in every country.
We remedy any fault in the unit free of charge
within the warranty period providing the cause
of the fault proves to be a material or manu-
facturing error.
„ Evacuate air from the cleaner (see Switch-
ing on the unit).
„ Clean the fine filter.
„ Seek the help of Customer Service if nec-
essary.
The warranty only becomes operative when
Detergent is not being drawn in your dealer has completed the reply card ac-
companying the sale of the unit, has stamped
and signed it and you have then sent the reply
card to the marketing company in your coun-
try.
„ Set nozzle to "Chem".
„ Check detergent suction hose with filter for
leaks or obstructions and clean it if neces-
sary.
Should you wish to call upon the guarantee,
„ Clean/renew non-return valve in detergent
please apply to your dealer or nearest author-
suction-hose connection.
ised Customer Service centre taking along
also the accessories and bill of sale.
„ Open detergent metering valve or check it
for leaks/remove obstruction. Also clean
the venting orifice in the housing.
„ Seek the help of Customer Service if nec-
essary.
13
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Operating Instructions HD 10/25 S USA
English
Technical Specifications
HD 10/25 S USA
Mains connection
Voltage
V
460
Type of current
Hz
HP
A
3 ~ 60
Connected load
10
Supply fuse (delayed-action, char. C)
Max. tolerable mains impedance
Extension cable 10 m
Extension cable 30 m
Water connection
16
Ω
(0.145 + j0.090)
2
2
mm
mm
2.5
4
Supply temperature max.
Supply volume min.
°F
140
5.3
7.5
3/4
0.5
145
gpm
m
Supply hose – minimum length
Supply hose – minimum diameter
Suction height from an open container 20 °C
Supply pressure max.
Performance data
inches
m
psi
Operating pressure
psi
psi
gpm
gpm
N
435 – 3190
3480
Max. operating overpressure (safety valve)
Flow rate
2.2 – 4.5
0 – 0.3
62
Detergent intake
Recoil force of the handgun
Sound emission
Sound pressure level
(EN 60704-1)
dB (A)
dB (A)
72
87
Garanted sound pressure level
(2000/14/EC)
Vibrations of unit / total of vibration (ISO 5349)
2
Handheld gun
Spray lance
m/s
2.2
2.0
2
m/s
Dimensions
Length
mm
mm
mm
kg
l
560
500
1090
62
Width
Height
Weight without accessories
Reservoir capacity, detergent
Oil quantity, pump
Oil type, pump
6
l
1.2
SAE 90
14
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HD 10/25 S USA
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