EHRLE KD 2x2 Series User manual

High Pressure Cleaner - Cold water, mobile
Series KD 2x2
Installation and Operating Instruction
301801-DE/UK-A • 1/2021 • H.S.
Operator
KD523 Premium (DE/UK)
English
KD523 Standard (DE/UK)

2 of 48
Declaration of Conformity
Ehrle GmbH
Industriestraße 3
D – 89165 Dietenheim
KD523 (DE/UK) Standard
KD523 (DE/UK) Premium
CE-0085
Manufacturer:
Address:
Product:
High Pressure Cleaner - Cold water, mobile
Series 2x2
The product given below is in conformity with the European Directives:
This product is used like
follows marked:
Development
Christoph Nöldner Reiner Ehrle
Head of Development CEO
Dietenheim, 01.12.2021
Relevant EC Directives:
2000/14/EC
2006/42/EC
2011/65/EU
2014/30/EU
2004/108/EC
Applied harmonized standards:
EN 60335–1
EN 60335–2–79
EN 50581
EN 55014–1: 2006+A1: 2009+A2: 2011
EN 55014-2: 2015
EN 62233: 2008
EN IEC 61000–3–2: 2019-12
EN IEC 61000–3–3: 2020–07
Conformity procedures applied:
2000/14/EG: Anhang V

Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
301801 • 1/2021 • H.S. 3 of 48
Table of content
Table of content
1 User information
1.1 General....................................................................................................................................5
1.2 Functional device concept..........................................................................................................5
1.3 Terminology..............................................................................................................................6
1.4 Meaning of the emphasis...........................................................................................................6
1.5 Meaning of the symbols.............................................................................................................7
1.6 Target group.............................................................................................................................8
1.7 Warranty and Liability................................................................................................................9
1.8 Environmental protection.........................................................................................................10
2 Safety
2.1 General safety information.......................................................................................................11
2.2 Authorized persons for device accessg......................................................................................11
2.3 Safety instructions for cleaning operation..................................................................................11
2.4 Accident prevention regulations................................................................................................12
2.5 Lifting and moving loads..........................................................................................................12
2.6 Periodic inspections.................................................................................................................13
2.7 Guidelines for liquid sprayers ...................................................................................................13
2.8 Design changes to the device...................................................................................................13
2.9 Safety devices.........................................................................................................................13
3 Product description
3.1 Device views Series 2x2, Standard ...........................................................................................14
3.2 Device views Series 2x2, Premium............................................................................................15
3.3 Type plate device version Standard...........................................................................................16
3.4 Type plate device version Premium...........................................................................................16
3.5 Serial number.........................................................................................................................16
3.6 Technical Data........................................................................................................................17
4 Device assembly
4.1 Accessories for KD523-Standard...............................................................................................20
4.2 Accessories for KD523-Premium...............................................................................................21
4.3 Device assembly .....................................................................................................................22
4.3.1 Device version Standard..........................................................................................................22
4.3.2 Device version Premium ..........................................................................................................23
5 Commissioning
5.1 Select location for device operation..........................................................................................26
5.2 Establishing the water connection ............................................................................................27
5.3 Establishing the electrical mains connection..............................................................................28
5.4 Commissioning the device........................................................................................................29

301801 • 1/2021 • H.S. 4 of 48
Table of content
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
6 Operation
6.1 Control and indicator elements of the device.............................................................................30
6.2 Control elements of the trigger gun..........................................................................................31
6.3 EMERGENCYSTOPswitch-oincaseofdanger.........................................................................31
6.4 Cleaning operation..................................................................................................................32
6.5 Operation with cleaning detergent (chemistry)..........................................................................34
6.5.1 General Informationen.............................................................................................................34
6.5.2 Cleaning detergent operation...................................................................................................35
7 Decommissioning
7.1 Temporary decommissioning....................................................................................................36
7.2 Decommissioning for a longer period of time.............................................................................37
8 Maintenance
8.1 General Information................................................................................................................38
8.2 EHRLE Maintenance and Inspection Contract ............................................................................38
8.3 Maintenance work...................................................................................................................38
8.3.1 Frost Protection ......................................................................................................................40
8.3.1.1 Drain water from high pressure cleaner ....................................................................................40
8.3.1.2 Rinse high pressure cleaner with antifreeze agent .....................................................................40
8.3.2 Filter on the connection water inlet ..........................................................................................40
8.3.3 Checking the HP-Hoses ...........................................................................................................41
9 Troubleshooting
9.1 Troubleshooting table..............................................................................................................42
10 Notes

301801 • 1/2021 • H.S. 5 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
1 User information
1 User information
1.1 General
General information
For a comprehensive advice and information on the High Pressure
Cleaner cold water, mobile - Series 2x2 please contact the EHRLE
Customer Service.
With the purchase of a EHRLE High Pressure Cleaner cold water,
mobile - Series 2x2 you are the owner of a quality product, which is
characterised by:
●user-friendliness,
●reliability,
●environmental friendliness.
This Installation and Operating Instruction is part of the High Pressure Cleaner
cold water, mobile - Series 2x2 and must be kept at the operating site and be
available at all times.
For the High Pressure Cleaner cold water, mobile - Series 2x2, the manual
contains information on
●User information
●Safety
●Product information
●Device assembly
●Commissioning, Decommissioning
●Operation
●Maintenance
●Troubleshooting
The German installation and operating instructions are the original version.
1.2 Functional device concept
Duetothespecicconstructivepropertiesthehighpressurecleanerscanbe
used in all conceivable industries, for example:
●Industry
●Agriculture and forestry
●Paintingcompanies(e.g.facades,oors)
●Construction companies (structural engineering, underground
construction and road construction
●Forwarding companies, vehicle and rental parks
●Local government
●Hotels and restaurants, as well as food industry.

301801 • 1/2021 • H.S. 6 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
1 User information
1.3 Terminology
In this manual the terminology listed below is replaced by the relevant short
terms whenever possible
●High Pressure Cleaner high pressure cleaner or device
cold water, mobile - Series 2x2
●Installation and manual
Operating Instruction
●High pressure hose HP-Hose
If a clear reference to a subject is required in the description parts, the
terminology „High Pressure Cleaner cold water, mobile - Series 2x2“ is used.
1.4 Meaning of the emphasis
The emphasis used in this manual have the following meanings:
WARNING
Warning precedes operating procedures, instructions, etc., which, if not strictly
observed, could result in personal injury or loss of life. Warning precedes also,
when device misuse could result in personal injury or loss of life.
CAUTION
Caution precedes operating procedures, instructions, etc., which, if not
strictly observed, could result in damage to the high pressure cleaner.
Caution precedes also, when device misuse could result in damage to
the high pressure cleaner.
This symbol indicates additional information.

301801 • 1/2021 • H.S. 7 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
1 User information
1.5 Meaning of the symbols
Symbol Meaning
WARNING
Follow instructions!
Non-observance or neglecting of prescribed
instructions, incorrect operation or misuse of the
device may endanger life and limb of persons.
WARNING
Danger of death due to electric shock.
Do not open the device. During operation,
dangerous voltages are present on live parts of the
device.
Touching live parts can lead to life-threatening
injuries.
WARNING
Danger of burns and scalds.
When operating with a water inlet temperature
of up to 45 °C the cleaning objects, the hot water
emerging from the trigger gun, surfaces of the
cleaning objects or device components can
become hot.
Touching hot surfaces or hot water can cause
burns or scalding of the skin surface. Make sure
surfaces have cooled before touching.
The hot water escaping from the trigger gun must
not come into contact with the skin.
WARNING
Explosion hazard due to use of unauthorised
cleaning agents.
Never aspirate liquids containing solvents such as
paint thinners, petrol, oil or similar liquids.
Thespraymistofsolventsishighlyammable,
explosive and toxic.
Follow the instructions of the additive
manufacturer!
WARNING
Danger with heavy loads.
A person is not allowed to lift and move loads
more than 23 kg. Otherwise the health of persons
may be endangered (e.g. overload of the spinal
column, injuries from falling loads).
For loads of more than 23 kg, use suitable lifting
equipment (e.g. forklift truck, lift truck).

301801 • 1/2021 • H.S. 8 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
1 User information
Symbol Meaning
CAUTION
Observe instructions for installation, device
adjustment, operation, maintenance and
repair.
Non-observance or neglecting prescribed
instructions, incorrect operation or misuse of
the device may result in damage to device parts,
assemblies or components.
General Information
General additional information.
Information on recycling
General information on recycling.
Information zur Entsorgung
Allgemeine Informationen zum sach- und
umweltgerechten Entsorgen von Materialien
undVerbrauchsstoen.
Information zum Gehörschutz
Allgemeine Informationen zum Gehörschutz.
Requires direct action.
Result after an action.
•Itemisation
1.6 Target group
This Installation and Operating Instruction contains information for operating
personnel for carrying out
●device mounting in the delivery state
●general cleaning works.

301801 • 1/2021 • H.S. 9 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
1 User information
1.7 Warranty and Liability
The EHRLE High Pressure Cleaner cold water, mobile - Series 2x2 may only be
used for its intended purpose.
Intended use includes:
●Operation only by authorised persons who
○are instructed and trained on the device, or
○have completely read and understood the information and
instructions in this Installation and Operating Instruction and
can therefore guarantee safe handling of the device.
●The information and instructions contained in this manual must be
observed.
●If the safety and protective devices are faulty, the high pressure cleaner
must not be put into operation.
●The high pressure cleaner may only be operated with fully functional safety
and protective devices. In the event of functional failures during operation,
the high pressure cleaner must be taken out of operation immediately.
●Faulty,insucientordefectivehighpressurecleanersmustnotbeputinto
operation. Before commissioning, carry out a visual inspection for faulty or
defective
○device parts, assemblies or components
○electrical cables
○HP-Hoses.
●Thehighpressurecleanermustbeswitchedoimmediatelyandtakenout
ofoperationifdefects,faultsordecienciesoccuron
○device parts, assemblies or components
○electrical cables
○HP-Hoses.
●No constructive changes may be made to the device.
●Thedevicemayonlybeoperatedinthecongurationcertiedbythe
manufacturer. Operation with subsequently installed modules, components
or additional devices is not permitted and may endanger life and limb of
persons or lead to damage to the device.
●Only original parts from the manufacturer or consumables approved by the
manufacturer may be used for maintenance and repair work.
Any warranty and liability claims for personal injury and damage to the device
are void if the high pressure cleaner is not used for its intended purpose.

301801 • 1/2021 • H.S. 10 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
1 User information
1.8 Environmental protection
Note on recycling
The packaging materials are recyclable. Please do not throw the packaging
into the household waste, but recycle it.
Note on disposal
Old appliances contain valuable recyclable materials which should be
recycled. Batteries, oil and similar materials must not be discharged into the
environment.
For this reason, please dispose of old appliances using suitable collection
systems.
Dispose of used materials in an appropriate and environmentally friendly
manner. Observe the local regulations.
According to environmental regulations, waste water containing mineral oil,
fuels for hot water heating or lubricants such as oils and greases must not
enter the soil, water or sewerage system.
Do not allow engine oil, fuel oil or petrol to escape into the environment.
Protect the soil and dispose of used oil in an environmentally friendly manner.
Engine cleaning or underbody washing of all types of vehicles may only be
carried out at washing stations equipped with oil separators in accordance with
environmental regulations (environmental protection).

301801 • 1/2021 • H.S. 11 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
2 Safety
2 Safety
2.1 General safety information
Observe the respective national regulations of the legislator for liquid sprayers.
Observe the relevant national regulations of the legislator on accident
prevention. Liquid sprayers must be inspected regularly and the result of the
inspection must be recorded in writing.
Observe the safety instructions provided with the cleaning agents used (usually
on the packaging label).
Keep cleaning agents out of the reach of unauthorized persons. Risk of
poisoning or caustic burns from cleaning agents! Observe the instructions on
the cleaning agents.
Perform prescribed maintenance and inspection work in due time (see
Section 8, Maintenance).
Safety-relevantdefectsmustberectiedimmediately.Keepallsignsonthe
device legible.
2.2 Authorized persons for device access
Ensure that access to the device is only possible for the persons who
●have completely read and understood the information and instructions in
this Installation and Operating Instruction and can therefore guarantee safe
handling of the device or
●are instructed and trained on the device.
Children as well as persons with reduced physical, sensory or mental abilities
are not allowed to operate the device.
2.3 Safety instructions for cleaning operation
During cleaning work, the personnel at the workplace must wear the necessary
Personal Protective Equipment (PPE). This includes waterproof protective suits,
rubber boots, protective goggles, headgear, ear protection if necessary, etc.
No cleaning work may be carried out in the presence of persons without
sucientPPE.
Before switching on, carry out a visual inspection of the device parts from the
outside for damage (HP-Hose, electrical or mechanical parts). Devices with
damaged parts, assemblies or components must not be put into operation.
The water jet leaving the trigger gun must not be directed at
●persons
●animals
●live electrical installations (building mains connections, sockets,
electrical wiring, etc.)
●live electrical installations, machines, devices, assemblies or components
●system, machinery or equipment in operation.
Undertheinuenceofthehighpressurejet,partscanbeseparatedfromthe
cleaning object and thrown away. Persons can be injured as a result.

301801 • 1/2021 • H.S. 12 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
2 Safety
Never aim the high pressure jet at fragile or loose objects.
When cleaning tyres and their valves, keep a minimum distance of 30 cm from
the high pressure nozzle. Otherwise damage may occur.
Before cleaning the High Pressure Cleaner cold water, mobile - Series 2x2 itself,
take the device out of operation and disconnect it from the electrical mains
connection. Secure the device against unintentional or unauthorised restarting
(e.g. lock main switch, disconnect mains cable from power outlet, provide
warning sign indicating work on the high pressure cleaner, etc.).
Never operate the device unattended.
The device is designed for a water inlet temperature of up to 45 °C. When
operated with hot water, water carrying parts (for example pump housing,
uninsulated pipes, metal parts of the trigger gun and spray lance) as well as
cleaning objects may become hot. Touching hot surfaces can cause burns or
scalding of the skin surface. Make sure surfaces have cooled before touching.
The hot water escaping from the trigger gun must not come into contact with
the skin.
Asbestos-containing and other materials containing substances hazardous to
healthmustnotbesprayedo.
Information on hearing protection.
If the sound levels exceed the permissible values, the personnel and persons
in the area of exposure must wear hearing protection.
The sound level for EHRLE high pressure cleaners under maximum load is
82 dB (A). A high sound level over a long period can cause hearing loss. If
the noise produced by the application of the emerging high pressure jet to
noise-enhancing objects exceeds the permissible values, the operating
personnelandanypersonsaectedmustwearhearingprotection.
Do not operate the device if electrical cables or other safety-relevant parts
(pressure relief valve, HP-Hose, trigger gun, etc.) are defective.
2.4 Accident prevention regulations
Observe the applicable national regulations of the legislator on accident
prevention.
2.5 Lifting and moving loads
The High Pressure Cleaner cold water, mobile - Series 2x2 weighs from 33 to
35 kg depending on the type (with packaging from approx. 37 kg to 39 kg).
Lifting and moving loads is permitted for one person up to 23 kg. If the load
exceeds 23 kg use suitable lifting equipment (e.g. forklift, lift trucks).
Observe the international standard „ISO 11228-1 Ergonomie - Manuelles Hand-
haben von Lasten - Teil 1 Heben und Tragen 05/2003“.

301801 • 1/2021 • H.S. 13 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
2 Safety
2.6 Periodic inspections
The periodic inspections are listed in Section 8 (Maintenance).
2.7 Guidelines for liquid sprayers
High pressure cleaners must be inspected by an expert in accordance
with the „Guidelines for liquid sprayers“, if necessary or at least every
12 months. The result of the test must be recorded in writing.
In the appendix of this manual there is a test sheet (proof of customer
service) to record the tests carried out.
EHRLE service technicians are experts and can be consulted and
commissioned by EHRLE service for this prescribed inspection.
2.8 Design changes to the device
Design changes to the high pressure cleaner are not permitted.
Inadmissiblyconstructivelymodieddevicescanendangerthelifeandlimbof
persons.
Whenoperatingadevicewhichhasbeenmodiedorchangedindesign,the
device will not be used for its intended purpose. If the device is not used for
its intended purpose, no liability or warranty will be accepted (see Section 1.7,
Warranty and Liability).
2.9 Safety devices
Safety devices serve to protect the user and must not be suspended or
circumvented in their function.
The high pressure cleaner has the following safety devices listed below:
●Pressure switches:
Devicefunctionsareswitchedonoro(safetyfunctions)basedontypeof
construction and intended use.
●Unloader valve and non-return valve:
Therstservestoadjusttheoperatingpressureandthesecondvalvekeeps
the pump head depressurised when the trigger gun is deactivated.
●TSSsystemwithpump-odelay:
After deactivating the trigger gun, the pump continues operation for approx.
30 s in the pressureless bypass mode (avoidance of too high pressure build-
up in the pump); after 30 s the high pressure cleaner automatically switches
into the stand-by mode.
●TotalSwitch-o:
Automaticallyswitchesthehighpressurecleanerointheeventofpro-
longed interruption of operation or unused trigger gun for more than 20
minutes.
●Overload protection switch:
When the motor current load is too high the switch releases and the device
isswitchedo.
●Mechanical arrest for trigger gun:
Prevents unintentional or unconscious activating the trigger gun.

301801 • 1/2021 • H.S. 14 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
3 Product information
3 Product description
3.1 Device views Series 2x2, Standard
2
3
4
5
6
8
1
7 11
9 10
1 Trigger gun 7 Unloader valve
2 DeviceswitchOn/O 8 Spraylance900mmwithvarionozzle
3 Connectionwaterinletwithlter 9 Powercord
4 High pressure outlet (pump) 10 Power plug 230 V
5 Detergentsuctionhosewithlter 11 UKpowerplug240V
6 Pressure gauge
Fig. 3 - 1 KD523 Standard, total and rear view

301801 • 1/2021 • H.S. 15 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
3 Product information
3.2 Device views Series 2x2, Premium
2
3
4
5
6
7
9
1
8
11
10
13
12
1 Trigger gun 8 Unloader valve
2 Hose reel 9 Spray lance 900 mm with rotary nozzle
3 DeviceswitchOn/O 10 Spraylance900mmwithvarionozzle
4 Connectionwaterinletwithlter 11 Powercord
5 High pressure outlet (pump) 12 Power plug 230 V
6 Detergentsuctionhosewithlter 13 UKpowerplug240V
7 Pressure gauge
Fig. 3 - 2 KD523 Premium, total and rear view

301801 • 1/2021 • H.S. 16 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
3 Product information
3.3 Type plate device version Standard
KD523 Standard
3.4 Type plate device version Premium
KD523 Premium
3.5 Serial number
Theserialnumberonthetypeplateuniquelyidentiestheproduct.Itisrequired
for Ehrle customer service.

301801 • 1/2021 • H.S. 17 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
3 Product information
3.6 Technical Data
High Pressure Cleaner cold water, mobile - Series 2x2 / Series 2x2 UK
Version
Standard / Premium Version Standard / Premium
KD523 KD523 UK
Electrical connection
Mains voltage V 230 240
Phase ~ 1 1
Mains frequency Hz 50 50
Connected load kW 2,9 2,9
Current (max.) A 13,2 12,9
Degree of protection IP IPX5 IPX5
Main fuse (slow-blowing) A 16 13
Residual current circuit breaker
(max. allowed residual current) mA 30 30
Extension cable up to 20 m Wires 3 x 3 x
mm22,5 2,5
Water connection
Max. feed pressure bar 5 5
MPA 0,5 0,5
Max. feed temperature ° C 45 45
Feed volume l/min 10 10
Suction height m 0 0
Performance data device
Nozzle size --- 043 043
Operating pressure bar 30 - 140 30 - 140
MPA 3 - 14,0 3 - 14,0
Max. operating over-pressure bar 155 155
MPA 15,5 15,5
Discharge capacity l/h 300 - 600 300 - 600
Recoil force trigger gun N 33,2 33,2
Pump speed U/min 2800 2800
Tab. 3 - 1 Technical data for High Pressure Cleaner cold water, mobile - Series 2x2/Series 2x2 UK

301801 • 1/2021 • H.S. 18 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
3 Product information
Version
Standard / Premium Version Standard / Premium
KD523 KD523 UK
Masse und Abmessungen
Weight
Standard (with packaging)
Premium (with packaging) kg
kg 33 (37) 35 (39) 33 (37) 35 (39)
Length (with packaging) mm 400 (420) 400 (420)
Width (with packaging) mm 600 (660) 600 (660)
Height (with packaging) mm 860 (960) 860 (960)
Lubricant
Amount of oil l 0,18 0,18
Oil grade Type 10W40 10W40
Tab. 3 - 1 Technical data for High Pressure Cleaner cold water, mobile - Series 2x2/Series 2x2 UK

301801 • 1/2021 • H.S. 19 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
4 Installation
4 Device assembly
WARNING
Ensure correct device assembly.
The persons assembling the high pressure cleaners must have
●read this manual and understood, that error-free device assembly can be
guaranteed, or
●specially trained and instructed on the respective device.
Otherwise, the life and limb of persons may be endangered.
WARNING
Danger with heavy loads.
The High Pressure Cleaner cold water, mobile - Series 2x2 weigh
depending on type from 33 kg to 35 kg (with packaging 37 kg to 39 kg).
A person is not allowed to lift and move loads (e.g. devices, assemblies)
more than 23 kg.
Otherwise the health of persons may be endangered (e.g. overload of the
spinal column, injuries from falling loads).
For loads of more than 23 kg, use suitable lifting equipment (e.g. forklift, lift
truck).
General Information
For detailed advice and information on the device assembly of the High
Pressure Cleaner cold water, mobile - Series 2x2, please contact the
EHRLE customer service.

301801 • 1/2021 • H.S. 20 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
4 Installation
4.1 Accessories for KD523-Standard
High pressure cleaner Spray lance 900 mm
with vario nozzle Trigger gun HP-Hose DN6 10 m
Waterinletlter
Fig. 4 - 1 Accessories for KD523-Standard