Kränzle therm 715 User manual

www.kraenzle.com
Cold and hot water high-pressure cleaner
therm 1
therm 11
Operating manual
EN

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EN
Operating manual
Cold and hot water high-pressure cleaner
therm 1
therm 11
Operating manual!
This manual is a translation of the original manual. Read and conform safety
instructions before use! Technical data will be found in the Spare parts list.
Please be aware that the spare part list is part of the operating manual.
Keep both leaflets for later use or any subsequent owners.

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Dear customer,
we would like to congratulate you on the purchase of your new high-pressure
cleaner and thank you for your confidence in our products!
Your choice has fallen on an absolute quality product!
Kränzle high-pressure cleaners are characterized by their high suitability
for everyday use.
Highest precision and dimensional accuracy in addition to a technology package
consisting of a multitude of details mark the difference when it comes to
performance, safety and durability.
In order to facilitate handling of the high-pressure cleaner, the following pages are
intended to further explain its use. The illustrations may be subject to deviation
depending on the type of equipment or accessory of high-pressure cleaner
purchased by you.
Contents ................................................................................................. 4
Explanatory symbols ....................................................................... 
Safety notes ......................................................................................... 8
Description of high-pressure cleaner ....................................... 12
General rules ........................................................................................ 18
Functional details .............................................................................. 22
Putting into operation .................................................................... 29
Direct suction ...................................................................................... 
Applying additives ............................................................................ 36
Taking out of operation .................................................................. 37
Particular rules, directives and inspections .......................... 38
Care and Maintenance .................................................................... 39
Small repairs - do it yourself ......................................................... 40
Kränzle accessories ........................................................................... 50
EU Declaration of Conformity ...................................................... 52
Warranty ............................................................................................... 53
Inspection reports ............................................................................. 54
Kränzle Final report .......................................................................... 56
Contents Explanatory symbols
Explanatory symbols used in the operating manual
Failure to observe this note may entail
environmental damage.
Note on the use of the high-pressure cleaner that failure to
adhere to the instructions may cause excessive wear or total
breakdown of the therm-series.
Warning!
Failure to observe this note may result in serious injuries!
Explanatory symbols affixed to the high-pressure cleaner
In case of improper use, the high-pressure jets can be very
dangerous. Do not direct high-pressure jet at persons, animals
or active electrical equipment or the high-pressure cleaner itself.
The high-pressure cleaner may not be connected directly
to the public drinking water supply network.
Risk of burns due to hot surfaces!
Warning! Attention high voltage.
Prior to opening high-pressure cleaner the main switch must
be set "OFF" and the mains plug must be pulled out.
Products marked with this symbol may contain constituents
posing a risk to health or the environment if incorrectly dis-
posed of. These products must never be disposed of as
household waste.
Explanatory symbols affixed on the packaging
This symbol denotes recyclable packaging materials
which must not be disposed of as household waste.
Information on proper disposal will be gathered from
the recycling directives issued by your local authority.

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Explanatory symbols
Explanatory symbols used on the control panel
Step 2:
Connect water hose to water inlet.
Open water tap.
Step 1:
Screw high-pressure hose down and pressure-
tight using safety trigger gun and lance.
Prior to putting the machine into operation
make sure that all safety instructions be
observed.
Attention: For safety reasons switch off main
switch after completing the washing procedure
(= supply isolation)
Prior to putting the machine into operation
make sure that all safety instructions be
observed.
Explanatory symbols used on the short instruction manual
Explanatory symbols
Step 3:
Connect to circuit (see technical data).
Step 4:
Switch on HP cleaner at main switch with
opened safety trigger gun. Start cleaning
process.
Step 5:
Usage as a cold water high-pressure cleaner.
Set temperature at the thermal switch on "0".
Switch on heater switch.
Step 6:
Usage as a hot water high pressure cleaner.
Set desired temperature at the thermostat.
Switch on heater switch.

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Replacement of the power supply cables is only permitted by use of an original
power supply cable of the manufacturer and must be performed by a qualified
electrician.
Safety devices serve to protect the user and must never be de-activated
or their function bypassed.
The high-pressure cleaner is to be properly used. The user is required to adhere
to local requirements and to watch out for the persons in the danger zone!
If used in elevated positions where there is a risk of the unit falling to the ground,
it must be secured against rolling away or tipping over.
The high-pressure cleaner is not designed for use by persons with restricted physical,
sensory or mental abilities (including children)!
Some parts inside the machine, all metal parts of trigger gun with safety catch
and lance are hot during hot water. Keep all hoods and protective covers closed
during operation and never touch any metal parts of gun or lance without
wearing appropriate protective gloves.
Use EL heating oil (DIN 51 603) or diesel fuel (DIN EN 590) only.
Using other kinds of fuel may cause considerable risks (explosions).
User operating the high-pressure cleaner should wear the necessary protective
clothing, i.e. waterproof clothing, rubber boots, safety goggles, ear protection
headwear etc. It is prohibited to use the high-pressure cleaner in close vicinity
to people lacking suitable protective clothing.
If noise exceeds the maximum allowed levels, users and others in the vicinity
must wear suitable ear protection.
Use of high-pressure cleaners may result in aerosols being generated. An aerosol
is a mixture of floating solid or liquid particles in a gas. Inhaling aerosol parti-
cles may cause damage to health. Employers are under obligation to carry out
a hazards assessment in order to determine the necessary protective measures
to prevent inhalation of aerosols as governed by the surface due to be cleaned
in each case. Respiratory masks, Class FFP 2 or higher, are suitable for protection
against aqueous aerosols.
Whenever the high-pressure cleaner is left unattended, the mains disconnect
switch must always be switched off.
Do not spray against matter containing asbestos or other hazardous substances!
Never spray flammable liquids or liquids containing solvents such as paint thinners,
petrol, oil or similar liquids! Explosion hazard due to spraying such materials!
Due to the high-pressure jet, damage may occur on the objects to be cleaned,
e.g. car tires; therefore, a minimum distance of 30 cm is to be kept!
Prior to putting the high-pressure cleaners into operation, check its components
(High-pressure hose, power supply cables, safety trigger gun) for any damage.
Replace defect or damaged components!
Only use high-pressure hoses, couplings and fittings recommended by Kränzle.
Only these accessories ensure safety of the equipment.
If use is made of an extension cable, this must be suitable for outdoor use.
In addition care needs to be taken to ensure that the cable is kept dry and
that it is situated above the ground. We recommend the use of a cable drum
capable of keeping the socket at least 60 mm above the ground.
When using high-pressure water for cleaning,
make sure that there is a clearly noticeable
recoil effect on the lance. Therefore ensure
a firm footing (see technical data).
Safety notes - This is prohibited!Safety notes

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Safety notes - This is prohibited!Safety notes - This is prohibited!
Never direct the high-pressure jet at power sockets
or any other electrical installations! Within the
working area, all live parts are to be protected
from both water jet and spray mist.
Never direct the high-pressure jet at the high-
pressure cleaner itself! The high-pressure cleaner
may not be placed within reach of the high-
pressure jet spray mist!
Always pay attention to the underbody lance
resting on the surface! Bear in mind when using
a curved or angled spraying lance that there is
a significant amount of torque in the recoil!
(The underbody lance is available as
optional accessory).
Never allow children or untrained persons to
use the high-pressure cleaner or to play with it!
Children must be kept under supervision to
prevent them from playing with the equipment.
Apply the safety catch on the safety trigger gun
after each use in order to prevent unintentional
spraying!
Only use a power supply cable in perfect working
order! Do not damage or improperly repair the
power cable (tearing, squeezing, running over, ...).
Never pull the high-pressure hose if it has formed
kinks or “nooses”! Never pull the high-pressure
hose over sharp edges!
Never direct the high-pressure jet at people or
animals! Never direct the high-pressure jet at
yourself or other persons, not even to clean
clothing or shoes.

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Design: therm series without hose drum
The therm series is a mobile high-pressure cleaner with an advanced arrangement
system. Please see construction scheme for more details.
This is what you have purchased: therm series without hose drum
1. Kränzle high-pressure cleaner
therm 715
therm 1017
2. Trigger gun with safety catch
Starlet, short design
with quick release coupling
3. Stainless steel lance with flat jet
nozzle and quick release coupling
4. Operating manual
Spare parts list
5. High-pressure hose
Optional:
Turbokiller 1100 mm with
stainless steel pipe and quick
release coupling
therm 715: Item no.: 12430-045
therm 1017: Item no.: 12430-06
Water inlet filter
Item no.: 13310
1. Ergonomically shaped handle
2. Holders for safety trigger gun
with lance
3. Operating panel (refer to page 16)
4. Cable reel for the power
supply cable
5. Storages for lances
6. Cleaning agent injection hose
7. Pump outleet / high-pressure
hose connection
8. Feed line water inlet,
water hose connection
9. Storage bin for accessories
10. Integrated trolley takes steps and
rough ground in its stride
11. Locking brake
12. Large removable caps
(refer to page 17)
13. Filler aperture for fuel
14. Drain plug for fuel
Description of high-pressure cleaner Description of high-pressure cleaner
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This is what you have purchased: therm series with hose drum
1. Kränzle high-pressure cleaner
therm 715
therm 1017
2. Trigger gun with safety catch
Starlet, short design
with quick release coupling
3. Stainless steel lance with flat jet
nozzle and quick release coupling
4. Operating manual
Spare parts list
Optional:
Turbokiller 1100 mm with
stainless steel pipe and quick
release coupling
therm 715: Item no.: 12430-045
therm 1017: Item no.: 12430-06
Water inlet filter
Item no.: 13310
1. Ergonomically shaped handle
2. Holders for safety trigger gun
with lance
3. Operating panel (refer to page 16)
4. Cable reel for the power
supply cable
5. Storages for lances
6. Cleaning agent injection hose
7. Pump outleet / high-pressure
hose connection
8. Feed line water inlet,
water hose connection
9. Storage bin for accessories
10. Integrated trolley takes steps and
rough ground in its stride
11. Locking brake
12. Large removable caps
(refer to page 17)
13. Filler aperture for fuel
14. Drain plug for fuel
15. Hose drum with 20 m
steel weave high-pressure hose
Design: therm series with hose drum
The therm series is a mobile high-pressure cleaner with an advanced arrangement
system. Please see construction scheme for more details.
Description of high-pressure cleaner Description of high-pressure cleaner
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Design: Operating panel
The therm series provides a clear operating panel.
Please see construction scheme for more details.
4. Thermal switch for regulating
water temperature
5. Large stainless steel
pressure gauge
6. Detergent valve
1. On/Off switch with motor
protection and control light
2. Heater switch for hot water use
3. Short operating manual
Design: Interior fittings
The therm series is a cold and hot water high-pressure cleaner.
It provides a variety of functions and electronics located in the interior of the
high-pressure cleaner. Please see construction scheme for more details.
7. Fan with fuel pump
8. Fuel filter
9. Connecting hose between high-
pressure pump and water tank
10. High-voltage ingnition
transformer
11. Display of the excess
temperature sensor
1. Pump head made of special brass
2. Infinitely variable pressure and
quantity regulation
3. Oil drain hose
4. Water tank
5. Exhaust gas outlet
6. Combustion chamber
Description of high-pressure cleaner Description of high-pressure cleaner

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New oil: 0,8 l
Kränzle High Performance Gear Oil
(Item no.: 400932)
General rules General rules
Intended use
This high-pressure cleaner is to be used solely for high-pressure water jet cleaning
applications without detergents or low-pressure cleaning work with detergents
(e.g. with a foam injector or washing brush).
Environmental, refuse disposal and water protection regulations
must be observed!
Inspections
The high-pressure cleaner was finally inspected by the company Kränzle
(refer to Kränzle final report).
The high-pressure cleaner must be inspected according to the “Guidelines for
Liquid Spray Devices” at least once every 12 months by a qualified person, to
ensure that continued safe operation is guaranteed. The results of the inspection
are to be recorded in writing (see "Inspection reports" in these operating manual).
High-pressure cleaners used for commercial purposes have
to be checked by a qualified person at least every 12 months!
The owner is to ensure that all safety-relevant components are
in a serviceable condition before the high-pressure cleaner is used.
Accident prevention
The high-pressure cleaner is designed for accidents to be impossible if used
correctly. The user is to be notified of the risk of injury from hot machine parts
and the high-pressure jet. The “Guidelines for Liquid Spray Devices” must be
complied with.
During the combustion process air is needed and exhaust gas emerges.
If the high-pressure cleaner is operated in a confined space, precautions
have to be taken to safely exhaust the fumes. Furthermore a sucient
ventilation has to be provided for.
Never shut the exhaust gas outlet on top of the If the high-pressure
cleaner. Never stoop over this aperture and never reach into it.
Emerging gases are extremely hot!
Oil change
The first oil change should be carried out
after approximately 50 operating hours,
then every year or after 500 operating
hours. If the oil turns grey or white, you
must change the oil.
Remove the large right hood from the
high-pressure cleaner and release the oil
drain hose from the inside of the device. It is
connected to the oil drain screw. Then open
the red oil filling plug at the top of the silver
oil housing and then the closure cap at the
end of the hose. The oil is to be caught in
the reservoir and disposed of in an approved
manner. Close the end of the hose. Only
then top up fresh oil.
Oil leakage
If oil leaks contact your nearest after-sales service (dealer) at once.
Failure to observe this instruction may cause damage to the environment
and/or transmission gearbox.
In case of increased humidity or fluctuations in temperature
development of condensed water is possible. If the oil turns
grey or white, you must change it.

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General rules General rules
Decalcifying
Calcified heat exchanger use an unnecessary amount of energy because the
water can only be heated slowly and the excess pressure valve feeds a part of
the water back into the high-pressure pump circuit.
The calcified heat exchanger is known by the increased pipeline resistance.
Check pipeline resistance by disconnecting the lance from the trigger gun
with safety catch and switching the high-pressure cleaner on. A full jet of water
emerges from the gun. The high-pressure cleaner must be decalcified if the
pressure shown on the stainless steel pressure gauge is greater than 50 bar.
Decalcify high-pressure cleaner as follows:
1. Decouple the lance from the trigger gun with safety catch
and decalcify it separately.
2. Put detergent injector hose in a container with descaling agent.
3. Set detergent valve on highest concentration.
4. Set high-pressure cleaner at the main switch on "ON".
5. Hold the gun in a separate container and press the trigger gun
with safety catch.
6. Wait until descaling agent escapes at the trigger gun with safety catch
(recognizable by whitish colour).
7. Switch high-pressure cleaner at the main switch on "OFF"
and let descaling agent work for 15 - 20 minutes.
8. Switch high-pressure cleaner at the main switch on "ON" again
and rinse it for two minutes using clear water.
9. Please check whether the flow resistance has a lower value now again.
If necessary, please repeat the decalcification process.
Decalcifiers are caustic! Observe the instructions for usage
and accident prevention. Wear protective clothing to prevent the
decalcifying agent from contacting your skin, eyes and clothing.
Fuel System
Your fuel may contain particles of dirt, or impurities or water may get into the tank
during refuelling. To protect the fuel pump the high-pressure cleaner is equipped
with a fuel filter. Check it regularly for dirt and exchange if applicable.
Check the tank for impurities on a regular basis. Clean the tank when necessary.
Empty the fuel tank using the drainage screw at the bottom of the tank.
Clean tank and fuel pipes thoroughly. Screw drainage screw back in.
Detergent and dirty fuel must be disposed of responsibly.
Check fuel system for dirt regularly.
No warranty is assumed for damage to the fuel system because of dirt.
The laws and regulations shall be observed and met by the operator.

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Functional details Functional details
Adjusting ignition electrodes
For a smooth ignition, the setting of the ignition electrode
must be controlled regularly.
Attention!
Immediately contact our service in case of recurrence.
Excess temperature sensor
As an additional safety device the high-pres-
sure cleaner is equipped with an excess tem-
perature sensor inside the chimney. Should
the safety devices as e.g. the float monitoring
device be defectice and the burner continues
to heat although the heating coil does not
conduct away heat a destruction of the
heating coil would be inevitable.
As soon as the temperature inside the
chimney exceeds 260 °C the excess tem-
perature release triggers and cuts out the
appliance. The display of the excess tempe-
rature sensor is located on the back of the
switchbox inside the high-pressure cleaner.
Trooble shooting excess temperature
see chapter „Small repairs - do it yourself!“
in these operating manuel.
Heat exchanger
The water is forced through a heating coil by the high-pressure pump.
The fuel pump sucks the fuel oil from the fuel tank via a fuel filter an and trans-
ports it to the injection nozzle. The heat exchanger is heated by a high-pressure
fan heater. A ventilator draws in the cold, fresh air from the bottom end of the
high-pressure cleaner and forces it upwards between the outer mantle and the
inner mantle. In the process, the fresh air is pre-heated and the outer mantle of
the heat exchanger is cooled.The pre-heated air is pressed through a mixing unit.
Here finely atomized fuel is injected via a nozzle and mixed with the air.
The electrodes located below then ignite the fuel-air mixture. The flame burns
from top to bottom, turns round and the hot gas flows past the heating coil
on its way back up. The burned gases collect in the exhaust chamber and are
emitted from the exhaust gas outlet.
1. Exhaust gas outlet
2. Mixing unit and nozzle
3. Electrodes
4. Inner cladding
5. Outer cladding
6. Fuel filter
7. Fuel pump
8. Heating coil
9. Fan

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Functional details Functional details
Check the line fusing and have the voltage and the available current
intensity checked by an expert in case of uncertainty (see technical data).
Electrical connection
The machine is supplied with a power supply cable. The mains plug must be
fitted to a standard grounded socket with a 30 mA residual current operated
device. Connection up to the mains must be carried out by a properly trained
electrician and must comply with the requirements of IEC60364-1. The socket
must be protected with a 16 A fuse on the mains side. When using an extension
cable, this must have an earthed lead which is properly connected to the socket.
The conductors in the extension cable must have a minimum cross section of
1.5 mm². Plug connections must be of a spray-proof design, and may not be
located on a wet floor. For extension cables of more than 10 m in length,
the minimum cross-section must be 2.5 mm²! When using a cable drum,
the power supply cable always must be unwound all the way.
Please note: Lack of water
Lack of water occurs more often than you
probably believe. The more powerful a high-
pressure cleaner is the greater is the danger
that a lack of water occurs. If there is only
an insufficient amount of water available,
cavitation (water-gas mixture) arises inside
the high-pressure pump, which is normally
noticed too late or even not at all. The high-
pressure pump will be destroyed. Please
check the available quantity of water by fil-
ling a bucket with liter scale for one minute.
Required minimum quantity of water (see technical data).
If the metered quantity of water is too small, you have to use a
different water connection, guaranteeing the necessary output.
Lack of water leads to an accelerated wear of the joints (no warranty).
Never let the high-pressure pump run dry for more than 60 seconds.
Water supply
Please pay attention to the regulations of your waterworks compa-
ny! In accordance with DIN EN 61770, the high-pressure cleaner may
not be directly connected to the public drinking water supply lines.
A brief connection however is permissible according to DVGW
(German Association for Gas and Water Affairs) if a non-return
valve with tube ventilator (Kränzle item no.: 410164) is built into the
water supply. Once the water has passed through the non-return
valve it is no longer considered as drinking water. Also indirect
connection to the public drinking water supply lines is permissible
by way of free emission in accordance with EN 61 770; e.g. by using
a reservoir with a float valve. Direct connection to a non-drinking
water supply line is permissible.
Insufficient quantity of electricity
If there are too many collectors in your
proximity connected to the network at the
same time, the available voltage and the
current intensity may decline. Consequently
the motor of the high-pressure cleaner does
not start or even blows. The power supply
may also be insufficient if the power supply
cable is too long or too thin. If extension
cables are too long, this may lead to a
voltage drop causing malfunctions or
start-up difficulties.

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Functional details Functional details
Water and cleaning system
Water can be connected at mains pressure to the high-pressure pump.
A float valve in the water tank regulates the water inlet. Then, the water is sucked
by the high-pressure pump from the water tank and supplied to the lance under
pressure. The high-pressure jet is formed by the nozzle at the end of the lance.
Bypassing the water tank water can also be sucked directly out of a pressure-less
container (see direct suction).
Environmental, refuse disposal and water protection regulations
must be observed!
Safety jet pipe with safety trigger gun
The high-pressure cleaner can only be operated when the trigger of the safety
deactivation trigger gun‘s trigger is actuated. When the trigger is pulled, the
safety trigger gun opens. The liquid is then transported to the nozzle. The spray
pressure increases and quickly reaches the operating pressure. When the trigger
is released, the safety trigger gun closes and any further spraying of liquid from
the safety jet pipe is prevented. The increase in pressure when the safety trigger
gun is closed causes the pressure control valve-safety valve to open. The motor is
switched off by the pressure switch. When thesafety trigger gun is opened, the
pressure control valve/safety valve closes, the motor is started and the high-pres-
sure pump resumes pressure spraying from the safety jet pipe with the selected
operating pressure.
The safety trigger gun is a safety device. Repairs should only be
performed by qualified persons. Should replacement parts be required,
use only components authorized by the manufacturer.
Pressure control valve/safety valve
The pressure control valve/safety valve protects the high-pressure cleaner from
a build up of excess pressure, and is designed not to permit an excess pressure
to be selected for operation. The limit nut on the handle is sealed with a spray
coating. The operating pressure and spray rate can be steplessly adjusted by
turning the handle.
Replacements, repairs, new adjustments and sealing should only
be performed by qualified persons.
Motor protection switch
Motor is protected against overload by means of a motor protection switch.
In case of motor overload or blocking, the motor of the high-pressure cleaner
switches off automatically. If motor tends to switch off repeatedly, make sure
to detect appears. Make sure to detect and remedy the cause of the failure.
Replacements and inspection work should only be performed by
qualified persons when the high-pressure cleaner is disconnected from
the power supply, i.e. with plug pulled out from the electrical socket.
Total stop system with delayed motor cut-off
When opening the trigger gun the motor is started via a total-stop system. When
closing the trigger gun the motor is switched off only after 38 seconds and the
device is in standby mode. The delayed switch-off is necessary because switching
on and off motors frequently on high-pressure cleaners of this size may involve
heavy load on the power network and cause increased wear of internal electrical
parts. After 20 minutes in standby, the device will disconnect from the mains and
must be turned on again by the main switch. The machine restarts automatically
when the gun is re-opened, provided that the master switch is on.

28 29
2. Install the water inlet filter (available
as an option) at the water inlet.
3.
Prior to putting into operation fill fuel oil
into the fuel tank. (fuel oil EL DIN 51 603
or diesel fuel DIN EN 590). Filling quantity
25 liters.
4. Um den Hochdruckreiniger zum
Einsatzort bewegen zu können,
lösen Sie die Feststellbremse.
Der Hochdruckreiniger darf nicht
mit angeschlossenem Wasserzu-
leitungsschlauch gezogen werden!
5. The therm series is a movable
high-pressure cleaner with sturdy
trolleys ideally suited for difficult
terrain.
For steering the high-pressure cleaner
put the foot against the tipping
support and then pull the device
towards you.
Functional details Putting into operation
Safety shutdown
If the high-pressure cleaner is accidentally not turned off after use or the trigger
gun with safety catch is not used for 20 minutes, the high-pressure cleaner auto-
matically changes into safety state by deactivation. By operating the main switch
once more, the device is activated again.
High-pressure hose and spray device
The high-pressure hose and spray device which are part of the therm series
equipment, are made of high quality material and engineered to conform with
the operating conditions of the high-pressure cleaner and are duly labeled.
If replacement parts are required, only such parts that are authorized
by the manufacturer may be used. The warranty is automatically void
if spare parts of third-party providers are used! The high-pressure hose
and spray device must be connected in a pressure-tight manner
(without leakage).
The high-pressure hose may not be driven over, pulled excessively, or
twisted. The high-pressure hose may under no circumstances be pulled
over sharp edges. Defective high-pressure hoses must not be repaired
(acc. to DIN 20022) but have to be replaced by new hoses approved by
the manufacturer.
Prior to putting the high-pressure cleaner into operation make sure
that all safety instructions be observed.
1. Install the mains cable holders with
the screws.
Please exclusively use the types of fuel listed above.
Using other kinds of fuel may cause considerable risks (explosions).

30 31
Putting into operation Putting into operation
6. For high-pressure cleaners with hose
drum, please loosen the fixation and
then completely unwind the high-pres-
sure hose. For high-pressure cleaners
without hose drum the high-pressure
hose included in the scope of the
delivery must be screwed with the
pump outlet in a tight and pressure
tight manner. Unwind high-pressure
hose straight and without nooses.
The high-pressure hose may leave
signs of abrasion on some floors.
Alternatively, please also find
non-marking high-pressure hoses
in our range.
7. Mount the grey rotating screw connec-
tion of the high-pressure hose onto
the trigger gun incorporating a safety
catch. Afterwards screw together
ensuring a snug and pressure-tight fit.
10.
Check water inlet filter for cleanliness
prior to putting the high-pressure
cleaner into operation.
Unscrew the filter cup manually, take
out the water inlet screen, flush thor-
oughly and clean with the remaining
parts under clear water. If the screen
is dirty, no water can run through and
no pressure can build up.
Check the water inlet sieve for damage. Do not operate the
high-pressure cleaner without or with a damaged filter.
11. Connect water hose to water inlet
(minimum requirements; 5 m hose length,
cross-section ¾", 10 bar). The high-
pressure cleaner may be connected to
a water mains (1-10 bar pre-pressure)
with either cold or hot water (up to
60 °C). The therm series provides
the opportunity of sucking in water
out of a container (see direct suction).
Be careful when using hot water! When running your high-pressure
cleaner with hot water of 60 °C raised temperatures occur. Do not touch
the metal parts of the high-pressure cleaner without safety gloves!
9. After insertion of the lance, release
retaining sleeve and make sure that
the lance is in a secure position.
Grease quick release nipple regularly
using acid-free grease.
8. First pull back the retaining sleeve
of the safety trigger gun, then
insert lance into the plug coupling
sconnection of the safety trigger gun.
Neither set up or operate the therm series in rooms where there
is a risk of fire or explosion nor put it into puddles. Do not use the
high-pressure cleaner under water. If, none the less, the high-pressure
cleaner is operated in a hazardous area, the applicable safety regulations
are to be observed.
The plug coupling must not be actuated/handled during operation!
High risk of injury!
Prior to insertion, check plug coupling connection of lance for
cleanliness (sand, dirt ..) and use clear water to clean, if necessary.
Impurities may damage the sealing in the plug coupling.
When using high-pressure hose extensions take care that the max.
length of 20 m is not exceeded!
Accessories may only be connected to a Kränzle-approved trigger gun
with safety catch.

32 33
12. For getting access to the interior fitting
of the high-pressure cleaner, loosen
screws at the cover. Remove cap
carefully.
Close cap properly prior to starting
the washing procedure.
13. Each time check oil level at the oil dip-
stick prior to putting the high-pressure
cleaner into operation. Oil level must
reach until the upper edge of marking
"OK“. See chapter „Care and Main-
tenance“ in these operating manual.
14. Connect to circuit (see technical data).
Do not touch the mains plug or any live parts with wet or moist hands.
15. When using the turbokiller (available
optionally), ensure that the lance is
pointing down for start-up.
Prior to putting the high-pressure cleaner into operation make sure
that all safety instructions be observed.
16. Adjust operating pressureinfinitely
using the rotary handle. The maximum
pressure is factory-set.
Usage as a cold water high-pressure cleaner
1. Set temperature at the thermal
switch on "0".
2. Detergent valve must be closed.
3. Switch on high-pressure cleaner with
opened safety trigger gun. Bleeding
of the high-pressure cleaner: Pull and
release trigger of safety trigger gun
several times.
Start cleaning task.
4. When starting the cleaning process
do not aim the water jet towards the
object you want to clean for at least
30 seconds. Maybe the water inside
the combustion chamber has changed
colour due to the rest time.
Putting into operation Putting into operation

34 35
Direct suction
Prior to starting the first suction the high-pressure pump and the
suction hose has to be filled with water!
Note
Depending on the water quality it may occur after a prolonged standstill
that the valves get sticky. Consequently the high-pressure cleaner cannot
properly suck in water from a container. In this case connect a hose with
pressurized water to the pump inlet. Having started the high-pressure
cleaner the pressurized water opens the valves and the machine resumes
sucking in water from the container. Now you can carry on with your
cleaning task as usual.
During high-pressure operation (above 30 bar) the temperature
may not exceed 90 °C.
During steam operation (90 - 150 °C) the pressure may not exceed
30 bar! To reach the steam level (above 90 °C water temperature)
adjust the pressure below 30 bar and choose by means of the
thermostat the desired temperature of up to max. 150 °C.
Usage as a hot water high pressure cleaner
4. Switch on heater switch. The water is
heated up and constantly kept at the
set temperature.
Start cleaning task.
2. Set desired temperature at the
thermostat. (Min. temperature 40 °C)
At eco level, the high-pressure cleaner
works in the most economic
temperature range.
3. Switch on high-pressure cleaner with
opened safety trigger gun. Bleeding
of the high-pressure cleaner: Pull and
release trigger of safety trigger gun
several times.
1. Detergent valve must be closed.
Putting into operation
Direct water extraction
Due to the suction capacity of its high-pressure pump (up to 2.5 m suction height,
max. hose length 3 m) this high-pressure cleaner can suck in water for cleaning
purposes from separate containers or ponds.
In this case the water tank must be bypassed.
1. Unsrew connecting hose between
high-pressure pump and water tank.
3. Put filled suction hose into the water-
filled container and start the cleaning
job.
Use clean water only!
Never suck in water containing
chlorine! Do not suction air!
2. Screw suction hose with suction filter
(Item.-no.: 15033) with connecting
hose using a spreaded steel pipe fitting
(Item.-no.: 46004).

36 37
Only open the dosing valve, if the detergent sieve is placed in a liquid!
Sucked air leads to destruction of the pump seals of the high-pressure
cleaner (No warranty)!
The additive must reveal a neutral pH value of 7-9. This machine has been
designed for use of cleaning agents supplied or specifically recommended
by the manufacturer. The use of other cleaning agents or chemicals may
impair the safety of the machine. Observe and comply with relevant
regulations, e.g. directives governing protective equipment, waste-water
regulations, etc.
Attention solvents!
Never suck in liquids containing solvents like varnish solvents, petrol, oil
or similar liquids! Seals inside the high-pressure cleaner are no resistant
against solvents! The spray mist of solvents is highly inflammable,
explosive and poisonous.
Suction of additives
Due to the water tank fitted to the therm series it is now possible to directly
suck the detergent into the high-pressure pump thus reducing output loss
and increasing the efficiency considerably.
1. Put detergent injector hose in a
container with additive.
2. Dosing of detergent is done by turning
the detergent valve.
By closing the detergent valve the
supply of detergent is stopped.
Rinse high-pressure cleaner after using
the detergent with open trigger gun
with safety catch using clear water.
Applying additives Taking out of operation
1. Switch off the high-pressure cleaner
2. Cut off the water supply
3. Open the safety trigger gun catch briefly until the pressure is released
4. Apply safety catch on the trigger gun
5. Remove high-pressure hose and safety trigger gun
6. Emptying high-pressure pump: Hold high-pressure hose and switch
motor on until water jet stops escaping at the outlet.
7. Pull the plug from the socket
8. Clean high-pressure hose and wind up without loops, fix hose drum
9. Clean and wind up the power supply cable
10. Clean the water inlet sieve
11. Apply locking brake
12. Store high-pressure cleaners in frost-free rooms in winter
Frost protection
For protecting the high-pressure cleaner against frost please empty it completely.
Separate high-pressure cleaner from water supply and switch it on. By opening
the safety trigger gun the high-pressure pump presses water out of the water
tank. However, do not allow the high-pressure cleaner to operate without
water for more than one minute. Fill the anti-freeze agent into the water box
and turn on the high-pressure cleaner. Wait with opened gun until the agent
spurts out of the nozzle.

38 39
Inspections performed by Kränzle
- Measurement of earth line resistance
- Measurement of voltage and current
- Inspection of tension consistency with +/- 1530 V
- Pressure check of heating coil at 300 bar
- Visual and functional check as per the inspection sheet provided
- Exhaust fume analysis (see test strips provided)
Guidelines for liquid sprayers
The machine conforms with the "Guidelines for liquid sprayers". These guidelines
are issued by the organisation of trade associations and may be obtained from
Carl Heymann-Verlag KG, Luxemburger Str. 49, 50939 Köln. These guidelines
specify that this machine is to be inspected by qualified personnel whenever
necessary, but no less than once every 12 months. These inspections must be
recorded in the inspection log at the end of this manual.
Pressure container and steam boiler directives
Kränzle high-pressure cleaning equipment conforms to the pressure container
and steam boiler directive. No construction approval, notification of licence
and takeover inspection are required. The water capacity is less than 10 l.
Duties of owner
The owner is to ensure that all safety-relevant components are in a serviceable
condition before the sprayer is used. (e.g., safety valves, hose and electric cables,
spray equipment etc.)
Emission control legislation
With stationary installation, the emission levels of the machine must be checked
once a year by a qualified organisation or person according to German law. The
first inspection must be carried out four weeks after the machine is commissioned.
The owner is responsible for having the inspection performed.
Particular rules, directives and inspections Care and Maintenance
Weekly, or after approx. 50 hours of operation
Oil level
Check the oil level of the high-pressure pump at the oil gauge rod. If the oil level is
too low top up oil. The oil level must reach the upper edge of the "OK" mark. (Oil
change - see chapter „General rules“ in these operating manuel. Change the oil
if it has a grey or whitish appearance. The oil should be disposed of responsibly.
Water filter and fuel filter
Check the water filter in front of the float valve in the water tank and the fuel
filter in front of the solenoid valve. Clean the filters if necessary.
The machine must be disconnected from the power supply when servi-
cing work is being carried out. The main switch should be in position "0"
and the plug out of the socket.
Yearly, or after approx. 500 hours of operation:
- Desulphurise and decarbonize the heating coil.
- Check heating coil for calcification, decalcify if necessary.
- Check the oil burner and ignition system.
- Clean the oil nozzle, oil filter, solenoid valve and filter, clean and adjust
the ignition transformer, ignition cable and ignition electrodes and
replace defective parts.
- Change the oil
Oil leakage
If oil leaks contact your nearest after-sales service (dealer) at once.
(environmental damage, damage to the transmission).
In case of increased humidity or fluctuations in temperature
development of condensed water is possible. If the oil turns grey
or white, you must change it.