Karcher HD4-5-32-4S User Manual [en, es, fr]
HD 4.5/32-4 S Eb
HD 4.5/32-4 S Ec
www.kaercher.com
5.961-739 04/08
English
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English Operating Instructions
IMPORTANT SAFETY
INSTRUCTIONS
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 supervision is necessary when a product is
used near children.
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.
8. Follow the maintenance instructions
specified in the manual.
"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."
GROUNDING 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.
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.
GROUND FAULT CIRCUIT
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).
5
Operating Instructions English
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.
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.
This appliance is intended for commercial
use.
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.
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English Operating Instructions
Unit components
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
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
11 Hood
12 Pressure gauge
13 High-pressure outlet
14 Nozzle rest
15 Water connection
16 Fine filter
17 Oil level display
18 Oil reservoir
19 Indicator light
20 Hose rest
21 Detergent reservoir vent
22 Accessories box
23 Cable holder
24 Handle
25 Nozzle
26 Marking of the nozzle
27 Spray lance
28 Pressure/flow control
29 Safety catch of hand-held spray gun
For your safety
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
Cleaners" No. 5.951-949.
Use of the cleaner
Use this unit exclusively for
– cleaning with high-pressure jet and de-
tergent (e.g. cleaning of machines, vehicles, buildings, tools),
– cleaning with high-pressure jet without
detergent (e.g. cleaning facades, terraces, gardening equipment).
For stubborn dirt we recommend the dirt
blaster as an optional accessory.
Safety features
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.
If the lever of the hand-held spray gun is released, the pressure switch switches the
pump off. If the lever is retracted, the pressure switch switches the pump on again.
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 English
Preparing the unit for use
Unpack the unit
– When unpacking the unit, check the con-
tents of the packaging. If there has been
any damage in transit inform the dealer.
– Do not dispose of the packaging with the
household rubbish, hand it in at the appropriate collection point for recycling.
Check the oil level
Read the oil level displayed while unit is
at a standstill. The oil level must be
above the two indicators.
Activate the oil reservoir vent
Unscrew the fastening screw of the hood
and remove the hood.
Cut off the tip on the cover to the oil res-
ervoir.
Fasten the unit cover.
Mount the accessories
Mount nozzle on the spray lance (see
markings on the top of the setting ring).
Fit the spray lance to the hand-held
spray gun with pressure and flow control.
Lock cable clincher into bore lateral to
the handle.
Tighten the high-pressure hose accord-
ingly.
Switching on the unit
Electrical connection
Caution!
The voltage specified on the model
rating plate must correspond to the voltage
supplied.
Caution!
Use an extension cable with a sufficient cable cross-section (see Technical
Specifications) and unwind it fully from the
cable drum.
For connected loads see model rating
plate/Technical Specifications.
Caution!
It is essential that the unit is connected to the power supply by means of a plug.
An inseparable connection to the power
supply is prohibited. The plug is used to disconnect from the mains.
Water connection/Suction feed
operation
Connection to water main
Caution!
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 shortterm connection via a non-return valve
(Order no. 6.412-578) is allowed.
For connected loads see Technical Specifications.
Connect a supply hose (not supplied) to
the water outlet on the unit and to the water inlet (e.g. water tap).
Open water inlet.
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English Operating Instructions
!
Suctioning water from an open
container
Screw suction hose with filter
(Order no. 4.440-238) to the water outlet.
Vent the unit before using.
To evacuate air from the unit, unscrew
the nozzle and leave the unit running until water exits with no air bubbles.
Switch off the unit and screw the nozzle
back on.
Operating the unit
Danger!
Observe the relative safety regulations when using the unit at filling stations
or other high-risk areas.
Caution!
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").
Selecting the type of spray
The handgun must be closed.
Rotate the housing of the nozzle until the
desired symbol corresponds with the
marking.
Select pencil jet or fan jet by contactless
changeover:
rotate the spray lance, which is pointing
down at an angle of approx. 45°, to the
left or right.
Explanation of the symbols
High-pressure pencil jet (0°),
for particularly stubborn accumulation of grime.
High-pressure fan jet (25°),
for dirt accumulation over a
large surface.
Low-pressure fan jet (CHEM)
for operation with detergent or
for cleaning at low pressure.
Operating with high pressure
The unit is equipped with a pressure switch.
The motor only starts up when the lever is
retracted.
Set the unit switch to "I". The indicator
light will go green.
Unlock the hand-held spray gun and re-
tract 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.
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Operating Instructions English
!
Operating with detergent
Caution!
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 noted carefully. Use
detergents sparingly out of consideration
for the environment.
Kärcher cleaning agents guarantee trouble-free operation. Please seek advice or
ask for our catalogue of information sheets
on cleaning agents.
Fill detergent reservoir.
Set nozzle to .
Set the detergent metering valve to the
desired concentration.
Concentration of detergent when flow at
maximun:
Position of metering
valve
Recommended cleaning methods
Spray detergent with low pressure jet
sparingly over the dry surface to be
cleaned and let it take effect but not dry
out.
Spray off (rinse off) the loosened dirt us-
ing the high-pressure spray.
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.
1357
0.5%2.5%5.0%7.0
%
Interrupting the operation
Release lever of the handgun, the unit
switches off. Retract lever again and the
unit switches on again.
Availability time
Within the availability time, the unit starts
when the hand-held spray gun is opened.
The indicator light will go green.
If the spray gun remains closed for
30 minutes, the availability time ends.
The indicator light will flash green.
Reset availability time
Switch off the unit switch.
Wait a moment.
Switch the unit back on again.
Customer Service can change the unit to
permanent operation.
Switching the unit off
Set unit switch to "0" and pull out power
plug.
Close water inlet.
Retract lever until the unit is without
pressure.
Push safety catch of the hand-held spray
gun forward to lock the lever of the gun
from being actuated inadvertently.
Danger!
Risk of scalding due to hot water. Residual 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
transporting it horizontally.
10
English Operating Instructions
!
Storing the cleaner
Place the handgun in the support.
Reel in the high-pressure hose and hang
it over the hose rest.
or
Coil the connecting cable round the ca-
ble/hose rest.
Frost protection
Caution!
Frost will destroy a unit that is not
completely 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).
Drain off the water and rinse the unit
through with anti-freeze.
Leave the unit to dry for max. 1 minute.
Use the standard glycol-based anti-
freezes for cars.
Follow the handling instructions of the
anti-freeze manufacturer.
Care and maintenance
Danger!
Before any care and maintenance
work on the unit draw out the mains plug.
Caution!
When changing the oil, dispose of
any waste oil only at authorised collection
points.
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.
Before each use
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.
Check high-pressure hose for damage
(danger of explosion), replace a damaged high-pressure hose without delay.
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.
Every week
Check oil level in oil reservoir: if the oil is
milky (water in oil), seek the help of Customer Service immediately.
Clean the fine filter.
– Unpressurize unit.
– Unscrew the fastening screw of the hood
and remove the hood.
– Unscrew the cover with filter.
– Clean the filter with clean water or com-
pressed air.
– Reassemble in the reverse order.
Clean the filter at the suction hose for de-
tergent.
Annually or after 500 operating
hours
Change the oil
– For oil quantity and type see Technical
Specifications.
– 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.
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