The high-pressure cleaner may
only be used by persons instructed in its use and who have
been expressly authorised to do
so.
Although extremely easy to operate, children should not be allowed to use the cleaner.
General
Use of the high-pressure cleaner
is subject to the applicable local
regulations.
Besides the operating instructions and the binding accident
prevention regulations valid in
the country of use, observe recognised regulations for safety
and proper use.
Do not use any unsafe work
techniques.
Transport
Transport of the high-pressure
cleaner is easy on its large
wheels.
For safe transport in and on vehicles we recommend to prevent
the equipment from sliding and
tilting by fixing it with belts.
Transport (when tilted):
– do not tilt the machine on the
front with the water connections.
– remove suction hose from
the detergent tank and close
tank filler with the cap provided with the machine.
– before putting the cleaner
into operation: pay attention
to allow the pump oil to run
back into the pump housing.
Check oil level, top up if necessary.
For transport at temperatures
around or below 0°C, anti-freeze
should be drawn into the pump
beforehand (see chapter 6).
Before starting the cleaner
If your 3-phase cleaner was
supplied without a plug, have
it fitted with a suitable 3-phase
plug with earth conductor, by an
electrician.
Before use, check that the highpressure cleaner is safe and in
proper condition.
Regularly check whether the
power cord is damaged or shows
signs of ageing.
Use the high-pressure cleaner
only when the mains power lead
is in a safe condition. (risk of
electric shock if damaged!).
Check the rated voltage of the
high-pressure cleaner 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.
We strongly recommend that the
power supply to the high pressure cleaner be connected via a
residual current circuit breaker.
This device stops the supply of
This indicates
tips and in-
structions to
simplify work and
This symbol is used
to mark safety in-
structions that must
be observed to pre-
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POSEIDON 5
electricity if the leakage current
to earth exceeds 30 mA for 30
ms or it has an earth tester circuit.
Operate the cleaner only in an
upright position!
Please observe the regulations
and provisions applicable in
your country. Before putting the
high-pressure cleaner into service, carry out a visual check of
all the major components.
CAUTION!
High-pressure water jets can
be dangerous if misused. The
jet must not be directed at persons, animals, live electrical
equipment or the cleaner itself.
Wear appropriate protective
clothing and eye protectors.
Do not direct the jet towards
yourself or towards other persons in order to clean clothes
or footwear.
During operation of the cleaner,
recoil forces are produced at the
spraying device and, when the
spray lance is held at an angle,
a torque is also created. The
spraying device must therefore
be held firmly in both hands.
Do not use the cleaner when
other people without protective clothing are in the working
area.
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.
Do not clean delicate parts
made of rubber, fabric, etc. with
the 0° jet. Keep some distance
between high pressure nozzle
and surface in order to prevent
the surface from damage.
Do not use the high-pressure
hose for lifting loads.
NOTE!
The maximum permissible
working pressure and tempera-
ture are printed on the highpressure hose.
Do not continue to use the
cleaner if the mains power lead
or high-pressure hose is damaged.
Ensure adequate air circulation. Do not cover the cleaner or
operate it in inadequately ventilated rooms!
Store the cleaner where
it will not be exposed to
frost!
Never operate the cleaner without water. Even brief shortages
of water result in severe damage to the pump seals.
Operation
CAUTION!
Unsuitable extension leads can
represent a source of danger.
Always unwind cord from the
reels completely to prevent the
power cord overheating.
Plugs and connectors of mains
power leads must be at least
splash water-proof.
When using an extension cord,
check the minimum cross-sections of the cable:
Cable lengthmCross section
<16 A<25 A
up to 20 m
20 to 50 m
ø1.5mm² ø2.5mm²
ø2.5mm² ø4.0mm²
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).
Electrical equipment
CAUTION!
Never spray electrical equipment with water: danger for per-
sons, risk of short-circuiting.
The cleaner may only be connected to a correctly installed
plug socket.
Switching on the cleaner may
cause voltage fluctuations.
Voltage fluctuations should not
occur if the impedance at the
transfer point is less than 0.15:
If in doubt ask your local electricity supplier.
Maintenance and repair
CAUTION!
Always remove the plug from the
mains plug socket before cleaning or carrying out maintenance
work on the cleaner.
Carry out only the maintenance
operations described in the operating instructions. 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 Authorised
Gerni dealers in accordance
with the maintenace plan. Failure to do so will invalidate the
warranty.
CAUTION!
High-pressure hoses, fittings
and couplings are important for
the safety of the cleaner. Use
only high-pressure parts approved by the manufacturer!
The mains power lead must not
differ from the version specified
by the manufacturer and may
only be changed by an electrician.
Please contact the Gerni service department or an authorised
specialist work-shop for all other
maintenance or repair work!
Testing
The cleaner conforms to the
German „Guidelines for Liquid
Spray Jet Devices“. The high-
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pressure cleaner must be subjected to a safety examination
in accordance with the „Accident Prevention Regulations
for Working with Liquid Spray
Jet Devices“ as required, but at
least every 12 months, by an authorised inspector.
After all repairs or modifications to electrical equipment,
the protective conductor resistance, the insulation resistance
and the leakage current must
be measured. Furthermore, a
visual inspection of the mains
power lead, a voltage and current measurement and a function test must be carried out. Our
after-sales service technicians
2 Description
2.1 Purpose
are at your disposal as authorised inspectors.
The complete „Accident Prevention Regulations for Working
with Liquid Spray Jet Devices“
are available from the Carl Heymanns Verlag KG, Luxemburger
Strasse 449, 50939 Cologne or
from the appropriate association of employers’ liability insurances.
This high-pressure cleaner has
been designed for professional
use in
– Agriculture
– industry
– transport industry
– automotive cleaning
– municipal facilities
– cleaning trade
– construction industry
– food industry
etc.
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.
Chapter 5 describes the use of
the high-pressure cleaner for
various cleaning jobs.
Always use the cleaner as described in these operating instructions. Any other use may
damage the cleaner or the surface to be cleaned or may result
in severe injury to persons.
2.2 Operating elements
4
See fold-out page at front of these
operating instructions.
1 Handle
2 Hose reel
3 Mains power lead
4 Tank filler for detergent
5 Pressure gauge
6 Detergent tank
7 High pressure hose
connection
8 Supply water connection with
water inlet filter
9 Check pump oil level
10 Pressure regulation
11 Detergent metering knob
12 Main switch
13 Pressure regulation on spray
lance
14 Spray lance
15 Receptacle for Spray lance
16 Spray gun
17 Detergent intake hose
18 Receptacle for electrical lead
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3 Before starting the cleaner
3.1 Setting up the cleanerCAUTION!
MAX
max
min
3.2 Fill up detergent tank
1)
Never lift the cleaner alone
(weight >70 kg). Always ask a
second person to help.
1. Before using the cleaner for
the first time, check it carefully to detect any faults or
damage.
2. In the event of any damage
contact your Gerni dealer immediately.
3. Check whether the oil level
is between the minimum and
maximum marks. If necessary, add oil (see chapter 9.4
for type of oil).
1. Fill up detergent tank with
prediluted Gerni detergent.
Capacity see chapter 9.4
Technical Data.
2. pull detergent filter out of the
storage and put it through
the opening of the detergent
tank filler cap.
3.3 Connecting the high
pressure hose
3.3.1 Machines without high
pressure hose reel
3.3.2 Machines with high
pressure hose reel
1. Put the quick connector of
the high pressure hose onto
the nipple on the cleaner.
1. Put the quick connector of
the high pressure hose (A)
B
A
onto the nipple on the axle.
2. Put the high pressure hose
into the hose guide (B) and
C
fix it with the clip.
3. Release the brake (C) on the
hose reel and wind up the
high pressure hose.
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3.4 Connecting the water
supply
NOTE!
See chapter 9.4 Technical Data
for required quantity of water
3.5 Electrical connectionCAUTION!
and water pressure.
In the case of poor water quality
(sand, etc.), we recommend that
a fine water filter is fitted in the
water inlet.
When using a cord reel:
1. Release brake of the cord
reel.
2. Unwind the cord completely.
CAUTION!
The cleaner may only be connected to a correctly installed
electrical installation.
1. Rinse the water supply hose
briefly in order to prevent
sand an other dirt particles
entering into the machine.
2. Connect water supply hose
to the machine.
3. Open water tap.
We recommend the use of a textile-reinforced water hose with a
nominal diameter of min. 3/4"
(19 mm).
1. Observe safety instructions
in chapter 1.
2. Put the plug into the electrical socket.
3.6 Antifreeze - before first
use
6
The machine is protected with
anti-freeze from the factory.
Catch the liquid discharging at
first (approx. 1 l) for re-use in a
container.
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4 Control / Operation
4.1 Connections
4.1.1 Connecting the spray
lance to the spray gun
NOTE!
Always remove any dirt from
the nipple before connecting the
spray lance to the spray gun.
4.2 Switching on the
cleaner
4.2.1 Switching on the
cleaner when it is
connected to a water
supply
A
C
B
1. Pull the blue quick-release
grip (A) of the spray gun forwards and lock it by turning it
to the left.
2. Insert the nipple of the spray
lance (C) into the quick-release connection and turn
the blue quick-release grip to
the right (B).
3. Pull the spray lance (or other
accessory) forwards to check
that it is securely attached to
the spray gun.
1. Main switch
O
I
Turn the switch to position
„ I „.
2. Unlock the spray gun and operate it.
3. Lock the spray gun even during short pauses.
4.2.2 Switching on the
cleaner when it is
connected to open
tanks (suction mode)
NOTE!
Operate the spray gun several
times at short intervals to vent
the system.
The cleaner switches off automatically after the spray gun has
been closed. To start the cleaner
again, operate the spray gun.
1. Before connecting the suc
tion hose to the cleaner, fill
the hose with water.
2. Main switch
Turn the switch to position
„ I „.
3. Unlock the spray gun and operate it.
Max. suction height = 2.5 m.
-
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4.3 Pressure regulation
(Tornado Lance)
4.4 Pressure regulation
with the FlexoPowerJet
nozzle
4.5 Pressure regulation on
the machine
MAX
CHEM
1. Turn the twist grip on the
spray unit:
– High pressure =
clockwise (+)
– Low pressure =
anticlockwise (–)
1. Twist cap of the FlexoPowerJet
nozzle:
– High pressure = MAX.
– Low pressure = MIN.(CHEM)
1. Set pressure and water volume by twisting the pressure/volume regulation knob
on the machine.
4.6 Using cleaning agents
8
MAX
CHEM
CAUTION!
Never allow cleaning agent
to dry on the surface to be
cleaned. The surface may be
damaged.
0%
1%
3%
5%
ca.
Cleaning agent can be drawn
in via the injector installed as
standard only in low-pressure
mode:
1. Dilute cleaning agent according to the manufacturer‘s
instructions. Capacity see
chapter 9.4 Technical Data.
2. Tornado lance
Set pressure regulation on
spray lance to low pressure
(–), or
FlexoPowerJet nozzle
Turn cap of the FlexoPowerJet nozzle towards „CHEM“
up to the stop.
3. The intaken volume of cleaning agent can be regulated by
turning the metering valve.
4. Main switch
Turn the switch to position
„ I „.
5. Operate the spray gun.
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5 Applications and methods
5.1 Techniques
5.1.1 Soaking
5.1.2 Detergent and Foam
5.1.3 Temperature
Efficient high pressure cleaning is achieved by following a few guidelines, combined with your own personal experience of specific 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
agriculture – for example, within pig sties. The ideal soaking method
can be achieved via use of foam or simple alkaline detergent. Let
the product lie on the dirty surfaces for around 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 car bodywork, in order
to avoid “super clean” areas, where the detergent collects in higher
concentration and streams downwards. Let the detergent work for
several minutes before rinsing before rinsing but 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 easily at higher temperatures also.
Proteins can be cleaned at temperatures of around 60°C. Oils, traffic
film around 70°C, and grease can be cleaned at 80°C - 90° C.
5.1.4 Mechanical Effect
5.1.5 High Water Flow or
High Pressure
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 high pressure
may damage surfaces. The cleaning effect also depends upon water
flow. Pressure levels of around 100 bar may be sufficient for vehicle
cleaning (in association with hot water). Higher flow levels give the
possibility to rinse and flush away large amounts of dirt easily.
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5.2 Some typical cleaning tasks
5.2.1 Agriculture
TaskAccessoriesMethod
Stables
Pig Pens, Sties
Cleaning of
walls, floors and
equipment
Disinfectant
Machinery
Tractors
ploughs etc.
Chemical Foam
Injectors
Foam lance
Powerspeed lance
Floor Cleaner
Detergents
Universal
Alkafoam
Disinfectant
DES 3000
Detergent injection
Powerspeed lances
Curved lances and
underchassis washers
Brushes
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
pressure 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
methods to ensure hygiene. Apply DES 3000
disinfectant once the surfaces are perfectly clean.
1. Apply detergent to vehicle or equipment surfaces in
order to soften up dirt and grime. Apply from bottom
to top.
2. Proceed with cleaning using the high pressure
lance. Clean again from bottom to top. Use
accessories to clean in difficult to reach places.
3. Clean fragile areas such as motors, rubber at lower
pressure levels to avoid damage.
5.2.2 Vehicle
TaskAccessoriesMethod
Vehicle bodyworkStandard lance
Detergent injection
Curved lances and
underchassis washers
brushes
Detergents
Aktive Shampoo
Aktive 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 RimTop.
2. Proceed with cleaning using the high pressure
lance. Clean again from bottom to top. Use
accessories to clean in difficult to reach places.
Use brushes in order to add a mechanical cleaning
effect. 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.
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5.2.3 Buildings and Equipment
TaskAccessoriesMethod
General surfaces
Metallic equipment
Foam injectors
Standard lance
Curved lances
Tank cleaning
head
Detergents
Intensive
J25 Multi
Combi Aktive
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
minutes for the optimal effect.
2. Proceed with cleaning using the high pressure
lance. Use applicable accessories. Use high
pressure 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
animal remains in slaughterhouses, can be removed
by using high water flow to flush away the dirt to
evacuation pits or drains.
Tank cleaning heads can be used to clean barrels,
vats, mixing tanks etc. Cleaning heads may be
hydraulically or electrically powered and give the
possibility for automatic cleaning without a constant
user.
Rusted or
damages 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
sandblasting.
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 association with accessories and detergents. Each cleaning task is different. Please consult your local dealer
or Gerni representative in order to discuss the best solution for your own cleaning tasks.
6 After using the cleaner
6.1 Switching off the
cleaner
6.2 Disconnecting supply
lines
O
1. Turn the main switch to posi-
I
tion „OFF“.
2. Close water tap.
3. Squeeze the spray gun handle until the cleaner is depressurised.
4. Lock the safety catch on the
spray gun.
1. Remove the water hose from
the cleaner.
2. Pull out the plug from the
electrical socket.
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6.3 Rolling up the electrical
lead and storing
accessories
6.4 Storing the cleaner
(below 0°C)
,
1. Store the cleaner in a dry
room without danger of frost
or protect as below:
CAUTION!
If the high-pressure cleaner is
stored in a room with temperatures around or below 0°C, antifreeze should be drawn into the
pump beforehand:
1. Remove the water inlet hose
from the cleaner.
2. Remove the spray lance.
3. Switch on the cleaner with
the main switch in position „
I“ and activate trigger on the
spray gun.
Switch off the cleaner after
max. 3 minutes.
4. Connect the suction hose to
the water inlet of the cleaner
Risk of tripping!
To prevent accidents, always
carefully roll up the electrical
lead.
1. Wind up the high pressure
hose as illustrated.
2. Place the spray lance into
the spray lance storage.
and place it in a tank containing anti-freeze.
5. Switch on the cleaner with
the main switch in position „
I „.
6. Hold the spray gun over the
tank containing anti-freeze
and operate it to start suction.
7. During suction operate the
spray gun two or three times.
8. Lift the suction hose from the
tank containing anti-freeze
and operate the spray gun to
pump off the remaining antifreeze.
9. Switching off the cleaner
10.To avoid any risks, store
the cleaner temporarily in a
heated room before using it
again.
7 Maintenance
7.1 Maintenance plan
Cleaning water inlet filter
7.2.1
Checking pump oil level
7.2.2
Changing pump oil
7.2.3
12
Weekly
QQ
Q
After the first 50
operating hours
QQ
Every six months
or 500 operating
hours
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7.2 Maintenance work
7.2.1 Cleaning water inlet
filter
7.2.2 Checking the pump oil
level
7.2.3 Changing the pump oil
MAX
A water filter is fitted on the water
inlet to prevent large particles of
dirt from entering into the pump.
1. Unscrew the quick-release
connection.
2. Remove the filter and rinse it.
Replace damaged filter. Replace damaged filter.
1. Check whether the oil level
is between the minimum and
maximum marks. If necessary, add oil (see chapter 9.4
max
min
for type of oil).
1. Before changing the oil, allow the cleaner to become
warm.
2. Remove cover.
3. Loosen the hose clamp (A).
4. Remove the hose from the
hose nipple. Allow the oil to
drain into a suitable contain-
A
er (min. 1 l capacity) and dispose of oil in compliance with
regulations.
5. Attach the hose and secure it
using the hose clamp.
6. Fill pump with fresh oil until
it appears between the MINMAX marks.
Oil grade and capacity see
chapter ‘9.4 Technical Data’.
Check that no oil remains in
the expansion tank (Do not
overfill expansion tank).
7. Fix cover.
CAUTION!
Special pump oil is required if
the cleaner is used near food.
Please consult your Gerni dealer.
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8 Troubleshooting
FaultCauseRemedy
Pressure drop> Air in the system•Vent the system by
> High pressure nozzle blocked
worn
> Pressure control on the spray
pipe is not set correctly
> Detergent tank empty•Top up detergent tank or
Pressure fluctuations> Pump draws in air (only
The motor does not start when
the cleaner is switched on
When the cleaner is switched
on the motor buzzes without
starting
The motor switches off> The overload protection
possible in suction mode)
> Lack of water•Open water tap
> Water inlet hose is too long
or its cross-section too small
> Lack of water caused by
blocked water filter
> Lack of water because max.
permissible suction height
has not been heeded
> The plug is not inserted
properly, i.e. there is no
current
> The mains fuse is switched
off
> The mains voltage is too low
or there is a phase failure.
> The pump is blocked or
frozen
> Incorrect cross-section or
length of the extension lead
has been activated due to
overheating or overloading of
the motor
> High-pressure nozzle is dirty • Change the high-pressure
operating the spray gun
several times at short
intervals. If necessary,
operate the cleaner for a
short time without the highpressure hose connected.
•Clean/replace the high
pressure nozzle
•Set the required working
pressure
set detergent metering to
“0”
•Check that the suction set
is air-tight
•Use specified water inlet
hose
•Clean the water filter in the
water connection (never
work without water filter)
•See instructions
•Check the plug, lead and
switch and if necessary
have them replaced by a
trained electrician
•Switch on the mains fuse
•Have the electrical
connection checked
•Contact the Gerni customer
service
•Use lead with correct cross
section or length
•Check that the mains
voltage and the cleaner
voltage are the same.
Switch off the cleaner and
allow it to cool for at least 3
minutes
nozzle
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FaultCauseRemedy
No detergents drawn in> Injector is dirty or suction
hose is blocked
> Detergent tank empty•Top up detergent tank
> The cap on the FlexoPower-
Jet nozzle is not set to low
pressure
9 Further information
9.1Recycling the cleaner
9.2 Guarantee
9.3 EU Declaration of
Conformity
Make the old cleaner unusable
immediately.
1. Unplug the cleaner and cut
the power cord.
Do not discard of electrical appliances with household waste.
Our general conditions of business are applicable with regard
to the guarantee. Subject to
EU Declaration of Conformity
Product:
Type:
Description:
The design of the unit corresponds to
the following pertinent regulations:
Applied harmonised standards:
Applied national standards and technical
specifications:
Dipl. Ing. Wolfgang Nieuwkamp
Tests and approvals
•Clean
•see chapter 4.6
As specified in European Directive 2002/96/EC on old electrical
and electronic appliances, used
electrical goods must be collected separately and recycled
ecologically. Contact your local
authorities or your nearest dealer for further information.