Karcher HD 7-250 DE TR1 User Manual
HD 7/250 De Tr1
59633200 08/10
2
Please read and comply with
these original instructions prior
to the initial operation of your appliance and
store them for later use or subsequent owners.
Contents
Safety instructions EN - 1
Function EN - 2
Environmental protection EN - 2
Proper use EN - 2
Device elements EN - 3
Operation EN - 5
Frost protection EN - 8
Maintenance and care EN - 10
Faults EN - 14
Technical specifications EN - 16
Accessories and Spare Parts EN - 17
Warranty EN - 17
CE declaration EN - 17
Safety instructions
Hazard levels
Danger
Immediate danger that can cause severe
injury or even death.
몇 Warning
Possible hazardous situation that could
lead to severe injury or even death.
Caution
Possible hazardous situation that could
lead to mild injury to persons or damage to
property.
Safety instructions
Danger
– This appliance must only be operated,
maintained and repaired by authorised,
skilled and trained personnel.
–
Only physically and mentally fit and reliable people should operate and care for
this high pressure water jets (minimum
age 18). The operator or his representative must be certain that the operator is familiar with the appliance and its
application and that he will be able to perform the assigned tasks responsibly.
– Fatigue, health issues, influence by al-
cohol or medications lead to a higher
safety risk while operating the machine.
– For safety reasons, a second person
must always be present when the appliance is being operated, in order to be
able to shut off the appliance in emergencies and to summon help if needed.
– The local and relevant accident preven-
tion directives as well as other, generally applicable safety, health and work
related regulations are to be observed.
The user is obliged to only operate the ap-
–
pliance while it is in flawless condition.
– Safety features on the appliance and
the spray unit must never be removed,
modified to made inoperable.
– Only use hose lines, spray units and ac-
cessories approved for the maximum
working pressure of the appliance.
– Hoses, pipes and connected accesso-
ries must be in good condition and installed properly.
– The application should not be operated
in explosive environments.
– If the appliance is used in hazardous ar-
eas (e.g. filling stations) the corresponding safety provisions must be
observed.
– During jet spray work, nobody besides
the operator is allowed in a radius of 10
m around the spray unit.
– Never direct the water jet on to persons,
animals, the appliance itself or electrical
components.
– Modifications of the set operating over
pressure on the appliance may only be
performed if previously agreed with the
operator of the spray unit.
– Risk of injury! The recoil pressure of the
spray pipe can throw you off-balance.
You may fall. The spray jet can fly off
and cause damage to persons. Search
a secure place to stand and hold the
gun firmly. Never hold on tightly to the
lever of the hand spray gun.
Risk of falling! Take precautions when
–
working on a scaffold, so that the person
does not fall from the scaffold due to the
recoil force generated by the appliance.
– For manual work with a spray gun, the
nozzle diameter must be selected so
that the recoil force in the longitudinal
axis does not exceed 250 N during
max. operating pressure. If the recoil
force 150 N, the spray gun must be
equipped with a body support as per
European standard prEN 1829. With recoil forces that exceed 250 N, the nozzle must be guided mechanically.+
– The recoil forces may be different if you
are using angular spray devices.
– Always monitor the displays during op-
eration. If the displayed values are not
correct, switch the appliance off immediately and remediate the cause of the
malfunction.
– If the appliance is not to be turned on,
e.g. during maintenance procedures,
you must attach a warning sign on the
switch cabinet.
– Prevent unauthorised personnel from
using the appliance by switching off the
key switch and removing the key.
– The appliance must be secured against
unauthorised use during work breaks.
– If the water stream is directed on
sound-amplifying objects, the noise
emission values may exceed the values
listed in the specifications.
– Any type of non-adherence as well as
resulting injuries to humans and damage to materials lies in the responsibility
of the operator. Failure to observe
these warnings may result in injuries or
death of the operating personnel.
Protective clothing
Danger
When working with the appliance or when
being present near the spray unit, the following protective clothing must be worn:
Helmet with protective
shield
Safety goggles
Capsule ear protection
Protective gloves
Special safety boots and
a middle foot protection
Protective jacketprotective overalls
Note
You must use protective clothing that is
specifically intended to be used with high
pressure cleaners. Effective protective
clothing can be purchased directly from
KÄRCHER.
Safety Devices
Safety devices serve to protect the user
and must not be rendered inoperational or
their functions bypassed.
Emergency-stop button
To put all functions out of operation immediately: Press emergency-stop button.
The appliance is free of pressure.
Safety switch for appliance hood
The appliance should be used only if the
appliance hood is closed.
If the appliance hood is opened during operation, the appliance will switch off and a
fault will be displayed.
- 1
3EN
Burst disc
If the working pressure exceeds the max.
permissible overpressure by approx. 10%,
the burst disc will be destroyed and the water will circulate inside the appliance without pressure. High pressure operation no
longer possible.
Pressure switch
The pressure switch switches off the appliance if the minimum prepressure is not
reached.
High pressure sensor
The pressure sensor monitors the pressure
buildup in the high pressure system. If the
pressure sensor detects an exceedingly
rapid pressure decrease, as might be the
case with leaks or a burst hose, as well as
if the working pressure is exceeded, the appliance will shut off.
Warning and instructive signs
Danger
Risk of injury on account
of electric shock!
몇 Warning
Risk of burns on account
of hot surfaces!
몇 Warning
Danger of crushing. Do
not remove the cover
while the appliance is
running.
Do not reach near the
cooling fan and the Vbelt while the motor is
running.
Î Retighten the wheel
bolts and the wheel
nuts after driving 50
km to a torque of 100
Nm.
Î Repeat the check af-
ter 500 km have been
driven and after 50
operating hours.
Î Repeat the safety
checks at regular intervals.
Î Have the brake sys-
tem and the lighting
system checked regularly by an authorised dealer
workshop.
Keep the warning and instructive signs on
the appliance clean.
Replace damaged or missing warning and
instructive signs with new ones.
Function
The high pressure pump is driven by an intermediate gear by a diesel motor.
When the jet operation is interrupted, an
electric signal will switch the system from
hand spray gun to pressureless water circulation.
The preset operating pressure is regulated
via the motor speed.
Environmental protection
Please arrange for the proper disposal
of the old appliances
Old appliances contain valuable materials
that can be recycled; these should be sent
for recycling. Batteries, oil, and similar substances must not enter the environment.
Please dispose of your old appliances using appropriate collection systems.
Please make sure that engine and gear
oil, diesel and antifreeze
do not enter the environment. Protect the
ground and dispose of used oil as well as
fuel and antifreeze in an environmentallyclean manner.
Please do not release mineral oil containing wastewater
into the soil, surface waters or sewer systems.
Notes about the ingredients (REACH)
You will find current information about the
ingredients at:
http://www.karcher.de/de/unternehmen/
umweltschutz/REACH.htm
Proper use
Use this appliance only as directed in these
operating instructions.
– The appliance is used to clean objects
by means of a high pressure water jet
with cold water without the use of detergents.
– The appliance may only be equipped
with original accessories and spare
parts.
– The appliance is not suited for the use
in potentially explosive environments.
– The appliance is not suitable to be used
simultaneously with multiple spray
units.
– The fresh water supply must meet the
following requirements:
max. temperature 60 °C
pH value 6,5...12
Total hardness 3...30 °dH
max. iron 0.2 mg/l Fe
max. manganese 0.05 mg/l Mn
max. chloride 100 mg/l Cl
max. organic substances 12 mg/l
use
KMnO
4
max. sulphate 100 mg/l SO
max. chlorine 0,5 mg/l Cl
min. dissolved oxygen 5 mg/l O
max. abrasive hazardous
substances
free of undisolved gases
max. conductivity 1000 µS/cm
remaining values as per DIN 50930
5 mg/l
2
2
4
Furthermore, the personnel must participate in a Kärcher safety seminar.
4 EN
- 2
Device elements
1 Towing hitch
2 Tear-off rope
3 Connector vehicle lighting
4 Support wheel
5 Battery
6 Battery main switch
7 Block wedge
8 Oil dip pump gear
9 Covering lid, oil drain opening pump
gear
10 Oil drain screw intermediate gear
11 Oil sight glass intermediate gear
12 Ventilation screw intermediate gear
13 Ventilation end gear
14 Filling nozzle diesel tank
15 Compressor
16 Cover
17 Compressed air valve
18 Air filter
19 Equalising reservoir motor coolant
20 Radiator
21 Parking brake
22 Cover
23 Door operating panel
24 Lock of appliance hood
25 Safety support appliance hood
26 Registration plates
27 Storage compartment
28 Hinge, storage compartment
29 Emergency-stop button
30 Switch box
31 Operating field
32 Vice
33 Socket, control line
34 Exterior air connection (supply)
35 Water inlet
36 Right compressed air connection, to
connect a compressed air tool
37 Hose sock mounting
- 3
38 Left compressed air connection, to con-
nect a compressed air tool
39 High-pressure outlet
40 Lifting eyelet (option)
41 Drain tap of the water tank (inside the
appliance)
42 Ball tap, antifreeze/water tank
43 Main fuse
44 Antifreeze container
45 Switch valve
46 Pump head
47 Maintenance door water tank
48 Pressure sensor/high pressure
49 Maintenance unit, pneumatics (cyclone
separator)
50 Manometer compressed air
51 High pressure pump
52 Waterfilter
53 Filler neck motor oil
5EN
Display and operating panel
+-
87
1 Display actual pressure
2 Bar graph fuel level
3 Bar graph water level in tank
4 Display cooling water temperature
5 Display oil pressure
6 F6 key, menu preselection
Symbols on the display
Symbol Meaning
Nominal pressure
Actual pressure
Motor oil pressure
Fuel level
Water level in tank
Cool water temperature
Reset
Motor ON
Motor OFF
Reduce nominal value
7 Key F5, increase nominal value
8 Key F4, decrease nominal value
9 Key F3, motor OFF
10 Key F2, motor ON
11 Key F1, reset key (acknowledge fault)
12 Display appliance status
Symbol Meaning
Change value
Brightness and contrast
settings
Informational display for
service personnel (inputs/outputs, operating
and high pressure hourmeter)
List of faults
Confirmation
Triggering outputs
High pressure hours
Operating hours of motor
Service interval hours
motor
Service interval hours
pump
Fault code motor
13 Display operation
14 Display actual speed
15 Display nominal pressure
16 Key switch
Symbol Meaning
Antifreeze rinse operation
Load control
Display OK (control voltage ON or motor is running)
Display wait time
Preglowing (hold for 3
seconds)
Nominal pressure
reached
The symbols of the fault displays are described in the Chapter "Faults".
Hand spraygun
Increase nominal value
Menu preselection
Gun operation
Gun operation with speed
stop
6 EN
1 Coupling of the control cable
2 Lever
3Locking
4 High pressure hose connection
5 Spray pipe connection
- 4
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