Gerni MH 7P User manual

107140709 B (08.2015)
MH 7P
Operating
instructions
psi
bar

2
psi
bar
4
3
5
6
2
1
psi
bar
29
30
24
25
23
27
22
21
28
26 11
10
8
9
12
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7

Original instruction 3
•
1 Symbols used to mark instructions
WARNING & Safety instructions in these operating instructions which must be ob-
served to prevent risks to persons are marked with this danger symbol.
Before starting up your high- pressure washer for the first time, this safety instruction
must be read through carefully. Save the instructions for later use.
This symbol marks safety instructions related to connection of the machine to water
mains.
2 Safety instructions. For your own safety
WARNING The high pressure washer may only be used by persons instructed in its use
and who have been expressly authorised to do so • This appliance is not intended for use by
persons with reduced physical, sensory or mental capabilities, or lack of experience and knowl-
edge, unless they have been given supervision or instruction concerning use of the appliance
by a person responsible for their safety • Machines shall not be used or maintained by children.
Children should be supervised to ensure they do not play with the appliance • Use of this ma-
chine is subject to the applicable local safety regulations and proper use.
Please refer to Oper-
ating Instructions for recommended use, maintenance and problem solving
• Never spray electri-
cal equipment with water: danger for persons, risk of short-circuiting.
3 Before starting the cleaner DO READ OPERATING INSTRUCTIONS BEFORE USE!
Before use, check that the machine is safe and in proper condition and in upright posi-
tion on a plain and stable ground to ensure stability. Regularly check whether the power cord is
damaged or shows signs of ageing.
WARNING Do not use the machine if a supply cord or important parts of the machine are
damaged, e.g. safety devices, high pressure hoses , spray handle or lance
• Check the rated
voltage of the machine before connecting it to the mains power supply. Ensure that the voltage
shown on the rating plate corresponds to the voltage of the local mains power supply.
NOTE: If your 3-phase cleaner was supplied without a plug, have it fitted with a suitable
3-phase plug with earth conductor.
WARNING related to combustion engine powered machines Do not use combustion
engine powered machines indoors unless adequate ventilation is assessed by national labour
authorities • Ensure that any exhaust emissions are not in the vicinity of air intakes • Incorrect
fuels shall not be used as they may prove hazardous.
WARNING Before use of water jet, assure that the high pressure hose with the spray han-
dle is safely connected by an audible click to the lance • High-pressure water jets can be dan-
gerous if misused. The jet must not be directed at persons, animals, live electrical equipment or
the cleaner itself • Do not direct the jet towards yourself or towards other persons in order to
clean clothes or footwear • Do not use the cleaner when other people without appropriate pro-
tective clothing are in the working area. Wear appropriate protective clothing, safety gloves,
boots, hearing aids and helmets with visor and eye protection • When operating the spray han-

Original instruction4
dle, kickback forces are produced at the spraying device and when the spray lance is held at an
angle, a torque is also created. The spray handle and spray lance must therefore be held firmly
with both hands • Check that cleaning will not result in dangerous substances (e.g. asbestos,
oil) being washed off the object to be cleaned and harming the environment • During use of
high pressure cleaners, aerosols may be formed. Inhalation of aerosols can be hazardous to
health. The employer shall perform a risk assessment in order to specify the necessary protec-
tive measures regarding aerosols, depending on the surface to be cleaned and its environment.
Respiratory masks of class FFP 2, an equivalent or higher are suitable for the protection
against hydrous aerosols • This machine has been designed for use with the cleaning agent
supplied or recommended by the manufacturer. The use of other cleaning agents or chemicals
may adversely affect the safety of the machine • Risk of explosion – Do not spray flammable
liquids. Do not clean delicate parts made of rubber, fabric, etc. with the jet nozzle. Keep some
distance between the jet nozzle and surface in order to prevent the surface from damage.
4 Transport
For safe transport in and on vehicles we recommend to prevent the equipment from sliding and
tilting by fixing it with belts. For transport and storage at temperatures around or below 0°C,
anti-freeze should be drawn into the pump beforehand (Please refer to Operating Instructions).
5 Water connection
This machine is only allowed to be connected with the potable water mains, when an ap-
propriate backflow preventer has been installed, Type BA, according to EN 60335-2-79. The
backflow preventer can be ordered under number 106411177,106411178,106411179,106411184.
The length of the hose between the backflow preventer and the machine must be at least 12
meters (min diameter 3/4 inch) to absorb possible pressure peaks. Operation by suction (for
example from a rainwater vessel) is carried out without backflow preventer. The suction set can
be ordered under number 61256.
WARNING Water that has flowed through backflow preventer and high pressure washer is
considered to be non-potable.
6 Electrical connection
The electric supply connection shall be made by a qualified electrician and comply with IEC
60364-1. It is recommended that the electric supply to this machine should include either a re-
sidual current device that will interrupt the supply if the leakage current to earth exceeds 30 mA
for 30 ms or a device that will prove the earth circuit. Switching on the cleaner may cause volt-
age fluctuations. Voltage fluctuations should not occur if the impedance at the transfer point is
less than 0.15 Ohm. If in doubt ask your local electricity supplier.
WARNING Inadequate extension cords can be dangerous. If an extension cord is used, it
shall be suitable for outdoor use, and the connection plug has to be kept dry and off the ground.
It is recommended that this is accomplished by means of a cord reel, which keep the socket at
least 60mm above the ground. Always unwind cord from the reels completely to prevent the
power cord overheating • Disconnect the power cord from the power source by pulling the plug
only (do not pull or tug the power cord).
7 Safety devices
Thermal sensor: A thermal sensor protects the motor against overloading. The machine will

Original instruction 5
•
restart after a few minutes when the thermal sensor has cooled. Unloader valve: Unacceptably
high pressure is fed back without residual pressure via a bypass line into the intake line of the
pump when the safety device is tripped. The unloader valve is set and sealed at the factory and
must not be adjusted. Locking device on spray handle: The spray handle features a locking de-
vice. When the pawl is activated, the spray handle cannot be operated.
8 Maintenance and repair
WARNING Always switch off the mains disconnecting switch when leaving the machine
unattended • Always remove the plug from the mains plug socket before carrying out mainte-
nance work or cleaning of the machine.
Carry out only the maintenance operations described in the operating instructions. To ensure
machine safety: use only original Gerni spare parts. Do not make any technical modifications
to the high-pressure cleaner. Ensure that the machine is regularly serviced by authorized Gerni
dealers in accordance with the maintenance plan. Failure to do so will invalidate the warranty.
CAUTION High-pressure hoses, fittings and couplings are important for the safety of the clean-
er. Use only high-pressure spare parts approved by Gerni! • If the supply cord is damaged it
must be replaced by the manufacturer, its service agent or similarly qualified persons to
prevent hazards.

61) Options / model variants
Original instructions
EN
2 Description .......................................................................................................... 7
2.1 Purpose ....................................................................................................................... 7
2.2 Operating elements ..................................................................................................... 7
3 Before starting the cleaner................................................................................. 8
3.1 Transport and assembly............................................................................................... 8
3.2 Combustion settings .................................................................................................... 8
3.3 Set the brake ............................................................................................................... 8
3.4 Install Crank handle for high pressure hose reel/cord reel .......................................... 9
3.5 Fill up detergent tanks ................................................................................................. 9
3.6 Fill up tank for AntiStone (Anti-Scale) ......................................................................... 9
3.7 Antiscale .................................................................................................................... 10
3.8 Fill up fuel tank........................................................................................................... 10
3.9 Connecting the high pressure hose ........................................................................... 10
3.10 Connecting the water supply ......................................................................................11
3.11 Antifreeze - before first use.........................................................................................11
3.12 Electrical connection.................................................................................................. 12
4 Control / Operation ........................................................................................... 13
4.1 Operation ................................................................................................................... 13
4.2 Connections............................................................................................................... 13
4.3 Switching on the cleaner............................................................................................ 13
4.4 Pressure regulation (Tornado Lance) ........................................................................ 14
4.5 Using cleaning agents ............................................................................................... 15
5 Applications and methods ............................................................................... 16
5.1 Techniques................................................................................................................. 16
5.2 Some typical cleaning tasks ...................................................................................... 17
6 Transport and storage ...................................................................................... 19
6.1 Transport.................................................................................................................... 19
6.2 Switching off the cleaner............................................................................................ 19
6.3 Disconnecting supply lines ........................................................................................ 19
6.4 Rolling up the electrical cord and storing accessories............................................... 20
6.5 Storing the cleaner below 0°C (32°F) ........................................................................ 20
7 Maintenance ...................................................................................................... 21
7.1 Maintenance guidelines ............................................................................................. 21
7.2 Maintenance schedule............................................................................................... 21
7.3 Maintenance work...................................................................................................... 21
8 Troubleshooting ................................................................................................ 23
8.1 Indications on Display................................................................................................ 23
8.2 Indication lights on control panel ............................................................................... 24
8.3 Other Faults ...............................................................................................................24
9 Further information........................................................................................... 25
9.1 Recycling the cleaner ................................................................................................ 25
9.2 Guarantee..................................................................................................................25
9.3 EU Declaration of conformity ..................................................................................... 25
9.4 Technical data............................................................................................................ 26
Contents

7
1) Options / model variants
Original instructions
EN
2 Description
This high-pressure cleaner has been designed for professional
use. It can be used for cleaning agricultural and construction equip-
ment, stables, vehicles, rusty surfaces, etc.
The cleaner has not been approved for cleaning surfaces which
comes into contact with food.
Always use the cleaner as described in these operating instruc-
tions. Any other use may damage the cleaner or the surface to be
cleaned or may result in severe injury to persons.
See fold-out page at front of these operating instructions.
1. Spray lance, gun and hose
2. Spray lance storage
3. Control panel
4. Crank handle for high pressure hose reel1)
Cord reel1)
5. Fuel level gauge
6. Tank filler for fuel
7. Receptacle for service crane and lifting ring1)
8. Top cover release
9. Service door release
10. Crank handle for high pressure hose reel1)
11. High pressure hose connection for machines without hose reel
12. Main switch ON/OFF - cold water/hot water
13. Display (Temperature or Codes)
14. Temperature control
15. Low fuel indicator
16. Low AntiStone (Anti-Scale) indicator
17. Service interval due/expired
18. Pump oil low
19. Detergent metering knob
20. Pressure gauge
21. Power ON
22. Castor with parking brake
23. Water supply connection
24. Tank filler for anti-freeze
25. Tank filler for Anti-Scale
26. Canister for detergent B1)
27. High pressure hose reel1)
28. Power cord reel1)
29. Tank filler for detergent A
30. Grip for top cover
2.1 Purpose
2.2 Operating elements

81) Options / model variants
Original instructions
EN 3 Before starting the cleaner
1. The safest way to lift the
machine is to use a fork-lift
truck The arrows in the il-
lustration indicate the best
places to position the fork.
2. It is also possible to lift the
machine by hand from the
pallet. Due to the weight
this work should be done
by at least three persons.
Your hot water pressure washer was thoroughly tested and adjust-
ed for optimum performance before it left our factory. The factory
is located at approximately 120m (390 ft) above sea level, and the
combustion settings are optimal for that elevation.
If your location is higher than 1200m (3900 ft) above sea level,
your burner may require re-adjustment for proper performance and
best fuel economy. Contact your dealer for assistance.
1. Before using the cleaner
for the first time, check it
carefully for any faults or
damage.
2. Run the machine only when
it is in perfect working con-
dition.
3. Set the brake.
4. The slope on which the
high pressure cleaner is
placed must not exceed
more than 100in any direc-
tion.
3.1 Transport and assem-
bly
3.2 Combustion settings
3.3 Set the brake
CAUTION
Do not hold the plastic tank to lift the machine as it could become
detached from the frame.
The best places to hold the machine are:
• on the handle
• on the frame between the front wheels and the guide rollers.

9
1) Options / model variants
Original instructions
EN
A
B
Fill up detergent tanks (A) and
(B) with concentrated deter-
gent.
Fill up Anti-Stone (Anti-Scale)/
water softener reservoir with
the sample bottle provided.
AntiStone (Anti-Scale) prevents
any deposits of scale and acts
at the same time as a corrosion
inhibitor.
For compatibility reasons, use
only the tested AntiStone (Anti-
Scale) which is available as:
• Six-pack of 1 liter bottles:
order part number 8466
• 10 liter:
order part number 80919
• 25 liter:
order part number 81235
3.4 Install Crank handle
for high pressure
hose reel/cord reel
3.5 Fill up detergent
tanks
3.6 Fill up tank for An-
tiStone (Anti-Scale)
1. Pull cap of crank in arrow
direction.
2. Align tabs on crank with
slot in axle.
3. Put crank on axle of high
pressure hose reel/cord
reel.
4. Fix crank by pushing the
cap.

10 1) Options / model variants
Original instructions
EN
The Antiscale dosing system is set by the factory.
To adjust the water hardness we recommend that the inlet water is
tested accordingly.
Use the schematic to find the right dosage of No Scale/anti stone
and water, and add the mixture to the antiscale tank.
With the machine cold, turned off
and disconnected from power sup-
ply:
• Fill fuel tank from a clean
container with a fresh fuel,
heating oil, DIN 51603-1
(without bio diesel) or Diesel
EN 590 (Diesel with a bio die-
sel content up to 7%). Diesel
according to EN 590 (up to
7% bio diesel) can be used
with the following restrictions:
• Maximum storage time in
high pressure cleaner diesel
tank: 1 month.
• Diesel stored externally for
more than 6 months is not
allowed to be filled into Nilfisk
high pressure cleaners.
• Diesel EN 590 is not recom-
mended for use in HPW’s
at an ambient temperature
below 0°C.
• Diesel EN 590 from an open
container must not be used.
A
B
C
1. Connect the high pressure
hose quick connector to the
high pressure nipple (A) lo-
cated at the hose reel axle.
2. Place the high pressure
hose into the hose guide
(B) and retain it with the
clip.
3. Release the brake (C) on
the hose reel and wind up
the high pressure hose.
3.7 Antiscale
3.8 Fill up fuel tank
3.9 Connecting the high
pressure hose
3.9.1 Machines with high
pressure hose reel1)
Machine flow L/h Pump size ml/h ˚dH ˚f˚e Dosage
1200 35 0-12 0-21,5 0 - 15 1:1 = 17ml/h
1200 35 12-30 21,5 - 53,7 15 - 37,5 Pure = 35ml/h
NOTE
• At temperatures below 8°C (46°F), the fuel oil begins to
solidify (paraffin precipitation). This can lead to difficulties
in starting the burner. Before the winter months it is recom-
mended that a fuel conditioner/stabilizer be added (available
from the fuel oil trade).
• Use clean fuel only, free of moisture and contamination. Con-
tact your dealer for fuel source and type recommendations.
NOTE
• High-pressure hoses, fittings and couplings are important for
the safety of the cleaner. Use only high-pressure parts ap-
proved by GERNI.

11
1) Options / model variants
Original instructions
EN
Connect the high pressure hose
quick connector to the high
pressure nipple located at right
rear of machine above chemical
tank.
1. Attach quick connect
adapter found with Owners
Manual to the water supply
hose.
2. Rinse the water supply
hose briefly in order to
prevent sand an other dirt
particles entering into the
machine.
3. Attach water supply hose
with adapter to inlet quick
connector.
4. Open water supply faucet.
3.9.2 Machines without
high pressure hose
reel1)
3.10 Connecting the water
supply
The machine is flushed with anti-freeze at the factory to protect it
against freezing; this mixture (approx. 5 l) may be captured in a
suitable container for reuse.
3.11 Antifreeze - before
first use
NOTE
• See chapter 9.4 Technical Data for required quantity of water
and water pressure.
• In the case of poor water quality (sand, etc.), it is recommen-
ded that an inlet water filter be installed.
• Water supply hose should be a reinforced hose and have a
minimum inside diameter of 3/4” (19 mm).
CAUTION
• Never operate the cleaner without water. Even brief shorta-
ges of water result in severe damage to the pump seals.

12 1) Options / model variants
Original instructions
EN
400V 400V
230V 230V
Some models have the ability
to be used on either 230 Volt
or a 440 Volt power supply. On
these models confirm that the
voltage selector switch is in the
proper position to match the
power supply. Otherwise dam-
age to machines electrical com-
ponents may occur.
The following should be
observed when connecting the
high pressure washer to the
electric installation:
• Only connect the machine
to an installation with earth
connection.
• The electric installation
shall be made by a certified
electrician.
• According to IEC 60364-1
it is strongly recommended
that the electric supply to
this machine should include
a residual current device
(GFCI).
3.12 Electrical connection
3.12.1 Extension cables
Cable connections should be
kept dry and off the ground.
Cables on drums should always be completely unwinded to
prevent the cable from overheating. Extension cables should be
of a watertight construction and comply with the below-mentioned
requirements for length and cable dimensions.
Cable length m Cross section
<16 A <25 A
up to 20 m ø1.5mm² ø2.5mm²
20 to 50 m ø2.5mm² ø4.0mm²
CAUTION
• Do not damage the mains power lead, e.g. by driving over it,
pulling or crushing it.
• Disconnect the power cord by pulling the plug only, do not
pull or tug the power cord.

13
1) Options / model variants
Original instructions
EN
A
C
B
1. Pull the blue quick-release
grip (A) of the spray gun
backwards.
2. Insert the nipple of the
spray lance (B) into the
quick-release connection
and release it.
3. Pull the spray lance (or
other accessory) forwards
to check that it is securely
attached to the spray gun.
1. Turn the main switch to
position (cold water).
• Control electronics accom-
plishes a self check.
• The Display shows for ap-
prox. 1 second „---“.
• The motor starts.
• is ON.
2. Turn the main switch to
position (hot water).
3. Select temperature.
4. Unlock the spray gun and
squeeze trigger.
5. The oil burner will light.
6. Release trigger and lock
the spray gun when not in
use.
4.1 Operation
4.2 Connections
4.2.1 Connecting the spray
lance to the spray
gun
4.3 Switching on the
cleaner
4.3.1 Cold water operation
/ Hot water operation
(up to 100°C)
4 Control / Operation
Before starting up the cleaner each time, please check it carefully
for any defects. Always check for sufficient levels of fuel, oil and
AntiScale. Also check the high pressure hose and gun, the insula-
tion of the electric cable should be faultless and without any cracks.
NOTE
To achieve a long life and avoid problems with dirt in the gun and
lance, the coupling and nipple have to be kept clean.
NOTE
Always remove any dirt from the nipple before connecting the
spray lance to the spray gun.

14 1) Options / model variants
Original instructions
EN
1. Open cabinet.
2. Turn the twist grip on the
safety control block all the
way to the left (counter-
clockwise-direction).
3. Turn the main switch to
position .
4. Select temperature (over
100°C (212°F)).
For special applications: re-
place the standard nozzle with
the steam spray nozzle (acces-
sory).
1. Turn the twist grip on the
spray unit:
• High pressure = clockwise
(+) for high pressure
• Low pressure = counter-
clockwise (–) for low pres-
sure.
4.3.2 Steam operation over
100°C (212°F)
4.4 Pressure regulation
(Tornado Lance)
NOTE
The cleaner switches off automatically twenty seconds after the
spray gun has been closed. To start the cleaner again, squeeze
the trigger and the machine will start automatically.
CAUTION
Beware of hot water and steam discharge up to 150°C when op-
erating in steam stage.

15
1) Options / model variants
Original instructions
EN
0
1
2
3
4
AB
5%
ca. ca.
3%
5%
3%
1%1%
1. Select desired detergent
(A) or (B) and amount by
turning the knob to desired
percentage.
2. Spray the object to be
cleaned.
3. Allow the cleaning agent to
work.
4. Turn off the cleaning agent
and spray until clean wa-
ter is comming out of the
lance.
5. Rinse off the object.
The percentage shown in the
illustration are only approximate
data.
For special applications such as
disinfection, the exact detergent
concentration has to be deter-
mined by using a graduated
measuring container. For water
outlet volume of the machine
see chapter 9.4 technical data.
The use of cleaning agents
while using the steam device
will show a lower percentage
and will result in a lower con-
centration.
4.5 Using cleaning
agents
NOTE
• Never allow cleaning agent to dry on the surface to be
cleaned. The surface may be damaged.
• This machine shall only be used with cleaning chemicals
supplied or recommended by GERNI.
• This machine will, when a cleaning agent has been chosen,
spray out the detergent on high- as well as low-pressure.
• To lenghten the lifetime of the machine, make sure to flush
the system with clean water after using chamicals.

16 1) Options / model variants
Original instructions
EN 5 Applications and methods
Efficient high pressure cleaning is achieved by following a few
guidelines, combined with your own personal experience of spe-
cific cleaning tasks. Accessories and detergents, when correctly
chosen, can increase the efficiency of your pressure washer. Here
is some basic information about cleaning.
Encrusted or thick layers of dirt can be loosened or softened up by
a period of soaking. This is for example an ideal method within ag-
riculture – for example, within pig sties. The ideal soaking method
can be achieved by using foam or simple alkaline detergent. Let
the product lie on the dirty surfaces for about 30 minutes before
pressure washing. The result will be a much quicker high pressure
cleaning process.
Foam or detergent should be applied onto dry surfaces so that the
chemical product is in direct contact with the dirt. Detergents are
applied from bottom to top, for example on a automobile bodywork,
in order to avoid “super clean” areas, where the detergent may
collect in higher concentrations and streams downwards. Let the
detergent work for several minutes before rinsing and never let it
dry on the surface being cleaned.
Detergents are more effective at higher temperatures. Greases,
oils and fats can be broken down more effectively at higher tem-
peratures also. Proteins can be cleaned at temperatures of around
60°C (140°F). Oils and traffic film around 70°C (158°F), and grease
can be cleaned at 80°-90°C (176-194°F).
In order to break down tough layers of dirt, additional mechanical
effect may be required. Special lances and rotary or wash brushes
offer this supplementary effect that cuts through dirt.
High pressure is not always the best solution and may also dam-
age surfaces. The cleaning effect also depends upon water flow.
Pressure levels of around 100 bar (1450 psi) may be sufficient for
vehicle cleaning (in association with hot water) and higher flow
levels give the ability to rinse and flush away large amounts of dirt
easily.
5.1 Techniques
5.1.1 Soaking
5.1.2 Detergent and Foam
5.1.3 Temperature
5.1.4 Mechanical Effect
5.1.5 High Water Flow or
High Pressure

17
1) Options / model variants
Original instructions
EN
5.2 Some typical cleaning tasks
5.2.1 Agriculture
5.2.2 Vehicle
Task Accessories Method
Stables
Pig Pens, Sties
Cleaning of walls,
floors and equip-
ment
Disinfectant
Chemical Foam Injec-
tors
Foam lance
Powerspeed lance
Floor Cleaner
Detergents
Universal
Alkafoam
Disinfectant
DES 3000
1. Soaking – apply foam to all surfaces (bottom to
top) and wait for approx. 30 minutes.
2. Remove the dirt from surfaces with the high pres-
sure lance or chosen accessory. Again, clean from
bottom to top on vertical surfaces.
3. To flush away large quantities of dirt, change to low
pressure mode and use the higher flow to push
away the dirt.
4. Use recommended disinfectant products and meth-
ods to ensure hygiene. Apply DES 3000 disinfect-
ant once the surfaces are perfectly clean.
Task Accessories Method
Vehicle bodywork Standard lance
Detergent injection
Curved lances and
underchassis washers
brushes
Detergents
Active Shampoo
Active Foam
Sapphire
Super Plus
Aktive Wax
Allosil
RimTop
1. Apply detergent to vehicle or equipment surfaces
in order to soften up dirt and grime. Apply from
bottom to top. In cases of particularly dirty vehicles,
pre-spray with a product such as Allosil in order
to remove traces of insects etc, then rinse at low
pressure and apply normal car cleaning detergent.
Let detergents settle for 5 minutes before cleaning
off. Metallic surfaces can be cleaned using Rim-
Top.
2. Proceed with cleaning using the high pressure
lance. Clean again from bottom to top. Use ac-
cessories to clean in difficult to reach places. Use
brushes in order to add a mechanical cleaning ef-
fect. Short lances can help for cleaning of motors
and wheel arches. Curved lances or undercarriage
washers can be valuable for the cleaning of car
underchassis and wheel arches.
3. Clean fragile areas such as motors, rubber at lower
pressure levels to avoid damage.
4. Apply a liquid wax using the pressure washer in
order to protect the bodywork from pollution.
Machinery
Tractors
ploughs etc.
Detergent injection
Powerspeed lances
Curved lances and
underchassis washers
Brushes
1. Apply detergent to vehicle or equipment surfaces
in order to soften up dirt and grime. Apply from bot-
tom to top.
2. Proceed with cleaning using the high pressure
lance. Clean again from bottom to top. Use ac-
cessories to clean in difficult to reach places.
3. Clean fragile areas such as motors, rubber at lower
pressure levels to avoid damage.

18 1) Options / model variants
Original instructions
EN
5.2.3 Buildings and Equipment
Task Accessories Method
General surfaces
Metallic equipment
Foam injectors, foam
lances, standard
lances
Curved lances
Tank cleaning
head
Detergents
Intensive
J25 Multi
Combi Active
Alkafoam
Disinfectant
DES 3000
1. Apply thick foam over the surfaces to be cleaned.
Apply on dry surfaces. Apply from top to bottom on
vertical surfaces. Let the foam act for up to 30 min-
utes for the optimal effect.
2. Proceed with cleaning using the high pressure
lance. Use applicable accessories. Use high pres-
sure to dislodge large amounts of incrusted dirt or
grime. Use lower pressure and high water volume
in order to rapidly flush away loose dirt and rinse
surfaces.
3. Apply DES 3000 disinfectant once the surfaces are
perfectly clean.
Areas covered by amounts of loose dirt, such as ani-
mal remains in slaughterhouses, can be removed by
using high water flow to flush away the dirt to evacua-
tion pits or drains.
Tank cleaning heads can be used to clean barrels,
vats, mixing tanks etc. Cleaning heads may be hydrau-
lically or electrically powered and give the possibility for
automatic cleaning without a constant user.
Rusted or damag-
es surfaces prior
to treatment
Wet Sandblasting
equipment
1. Connect the sandblasting lance to the pressure
washer and place the suction tube in the sand.
2. Always wear protective equipment during sand-
blasting.
3. Spray the surfaces to be treated with the mix of
water and sand. Rust, paint etc will be stripped off.
These are merely several examples of cleaning tasks that can be solved by a pressure washer in as-
sociation with accessories and detergents. Each cleaning task is different. Please consult your local
dealer or representative in order to discuss the best solution for your own cleaning tasks.

19
1) Options / model variants
Original instructions
EN
6 Transport and storage
1. Turn the main switch to
position „OFF“.
2. Turn off water supply at
faucet.
3. Squeeze the spray gun trig-
ger until the pressure has
bled off.
4. Slide trigger lock to the
locked position.
1. Turn the main switch to position „OFF“.
2. Turn off water supply at faucet.
3. Squeeze the spray gun trigger until the pressure has bled off.
4. Slide trigger lock to the locked position.
5. Remove the water supply hose from the cleaner.
6. Remove power cord plug from the electrical supply.
6.2 Switching off the
cleaner
6.3 Disconnecting supply
lines
6.1 Transport For safe transport in and on vechicles we recommend to prevent
the equipment from sliding and tilting by fixing it with belts.
Transport:
• Do not tilt the machine.
• Run the machine to empty the break tank and de pressurise
the high pressure hose by squeezing the trigger.
For transport and storage at temperatures around or below 0°C,
anti-freeze liquid should be drawn into the pump beforehand.

20 1) Options / model variants
Original instructions
EN
Risk of tripping
To prevent accidents, always
carefully roll up the power cord.
Machines with hose and cord
reel:
1. Wind up the power cord
as illustrated with the plug
located in the center of the
cord reel.
2. Wind up the high pressure
hose as illustrated.
3. Place the spray lance into
the spray lance storage.
6.4 Rolling up the electri-
cal cord and storing
accessories
A
Store the cleaner in a dry heat-
ed location to protect against
freezing or protect per below
instructions:
1. Switch on the cleaner with
the main switch in position
.
2. Squeeze trigger of the
spray gun.
3. Turn off the water supply.
Do not remove the water
supply hose from the clean-
er, this will result in water
spraying everywhere.
4. Gradually pour antifreeze
(approx. 5 litres) into the
water tank (A).
5. The machine is protected
against freezing when an-
tifreeze mixture emerges
from the spray gun.
6. Release the trigger of the
spray gun.
7. Switch off the cleaner.
8. When the machine is put
into service again, the anti-
freeze solution can be col-
lected and stored for future
use.
6.5 Storing the cleaner
below 0°C (32°F)
CAUTION
• Never startup a frozen cleaner. To avoid any possible dam-
age, store the cleaner temporarily in a heated room before
using it again.
• Frost damages are not covered by the guarantee.