Gerni NEPTUNE 7 User manual

G4
G4
Betjeningsvejledning DK
Bruksanvisning N
Bruksanvisning S
Operating guide UK
Betribsanleitung D
Mode d’emploi F
Gebruiksaanwijzingen NL
Instrucciones de manejo E
Instruções para uso P
Käyttöopas FI
Instrukcja obsługi PL
Ελληνικά - οδηγίες λειτουργίάς GR
06951019.01
107140709 A
Operating guide
NEPTUNE 7

2
NEPTUNE 7 FA
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
14
13
15
16
17
18
19
20
7

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Original instructions
EN
1 Important safety instructions............................................................................. 4
1.1 For your own safety ....................................................................................................4
2 Description .......................................................................................................... 6
2.1 Purpose .......................................................................................................................6
2.2 Operating elements .....................................................................................................6
3 Before starting the cleaner................................................................................. 7
3.1 Transport and assembly...............................................................................................7
3.2 Combustion settings....................................................................................................7
3.3 Set the brake ...............................................................................................................7
3.4 Install Crank handle for high pressure hose reel/cord reel..........................................8
3.5 Fill up detergent tanks .................................................................................................8
3.6 Fill up tank for AntiStone (Anti-Scale) .........................................................................8
3.7 Antiscale......................................................................................................................9
3.8 Fill up fuel tank.............................................................................................................9
3.9 Connecting the high pressure hose.............................................................................9
3.10 Connecting the water supply .....................................................................................10
3.11 Antifreeze - before first use........................................................................................10
3.12 Water connection........................................................................................................11
3.13 Electrical connection...................................................................................................11
4 Control / Operation ........................................................................................... 12
4.1 Operation...................................................................................................................12
4.2 Connections...............................................................................................................12
4.3 Switching on the cleaner............................................................................................12
4.4 Pressure regulation (Tornado Lance) ........................................................................13
4.5 Using cleaning agents ...............................................................................................14
5 Applications and methods ............................................................................... 15
5.1 Techniques.................................................................................................................15
5.2 Some typical cleaning tasks ......................................................................................16
6 Transport and storage...................................................................................... 18
6.1 Transport....................................................................................................................18
6.2 Switching off the cleaner............................................................................................18
6.3 Disconnecting supply lines ........................................................................................18
6.4 Rolling up the electrical cord and storing accessories...............................................19
6.5 Storing the cleaner below 0°C (32°F)........................................................................19
7 Maintenance ...................................................................................................... 20
7.1 Maintenance guidelines.............................................................................................20
7.2 Maintenance schedule...............................................................................................20
7.3 Maintenance work......................................................................................................20
8 Troubleshooting................................................................................................ 22
8.1 Indications on Display................................................................................................22
8.2 Indication lights on control panel ...............................................................................23
8.3 Other Faults...............................................................................................................23
9 Further information........................................................................................... 24
9.1 Recycling the cleaner ................................................................................................24
9.2 Guarantee..................................................................................................................24
9.3 EU Declaration of Conformity....................................................................................25
9.4 Technical data............................................................................................................26
Contents

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Original instructions
EN 1 Important safety instructions
Prior to using the appliance for the first time, be sure to read this
document through.
Besides the operating instructions and the binding accident pre-
vention regulations valid in the country of use, observe recognised
regulations for safety and proper use.
The appliance must
• only be used by persons, who have been instructed in its cor-
rect usage and explicitly commissioned with the task of operat-
ing it
• only be operated under supervision
• not be used by children
• not be used by mentally or physically disabled persons.
1.1 For your own safety

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Original instructions
EN
CAUTION
• High pressure jets can be dangerous. Never direct the water
jet at persons, pets, electrical equipment or the machine its-
elf.
• Be aware when cleaning delicate parts made of rubber, fa-
bric, etc. with the high pressure cleaner. Keep some distance
between high pressure nozzle and surface in order to prevent
the surface from damage.
• During operation of the cleaner, recoil forces are produced at
the spraying device. It must therefore be held firmly in both
hands.
• Wear goggles during operation.
• The operator and anyone in the immediate vicinity of the site
of cleaning should take action to protect themselves from
being struck by debris dislodged during operation.
• Never use the machine in an environment where there could
be a danger of explosion.
• Risk of explosion – Do not use the cleaner to spray with flam-
mable liquids.
• It is not allowed to clean asbestos-containing surfaces with
high pressure.
• Check that cleaning will not result in dangerous substances
(e.g. asbestos, oil) being washed off and harming the envi-
ronment.
• Only use correct fuel as specified. Improper fuels can cause
severe hazard.
• Ensure that any exhaust emissions are not in a vicinity of air
intakes.
• Because of exhaust emissions, airborne dust and aerosols,
use proper safety gear when necessary.
• Do not operate the cleaner in inadequately ventilated rooms.
• Do not touch, cover or place hose or power cord over the
chimney.
• Do not tie the trigger handle open.
• Do not use any unsafe work techniques.
• Do not use the high-pressure hose for lifting loads.
• Operate the cleaner in the intended upright position only.
• High pressure hoses and couplings are safety relevant. Only
use parts recommended by your dealer.

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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. LowAntiStone (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 forAnti-Scale
26. Canister for detergent B1)
27. High pressure hose reel1)
28. Power cord reel1)
29. Tank filler for detergentA
30. Grip for top cover
2.1 Purpose
2.2 Operating elements

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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.

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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.

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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 pow-
er supply:
• Fill fuel tank from a clean
container with a fresh fuel
(fuel oil EL, or Diesel oil
DIN 51 603), or fuel type
recommended by your dis-
tributor.
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.

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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.

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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).
3.13 Electrical connection
This high pressure washer/cleaner is only allowed to be connected
with the drinking watermains, when an appropriate backflow pre-
venter has been installed, Type BA according to EN 1717. If the
backflow preventer hasn’t been supplied, one can be ordered from
your dealer.As soon as water has flown through the BA valve, this
water is not considered to be drinking water any more. The length
of the hose between the backflow preventer and the high pressure
washer must be at least 12 metres (min diameter 3/4 inch) to ab-
sorb possible pressure peaks.
In the case of poor water quality (sand, etc.) add a water filter to
the machine.
Rinse the water supply hose briefly in order to prevent sand and
other dirt particles entering into the machine.
Operation by suction (for example from a rainwater vessel) is car-
ried out without backflow preventer. Contact your dealer for suction
set recommendations.
3.12 Water connection
3.13.1 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.

12
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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.

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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.

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NEPTUNE 7 FA
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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.

15
NEPTUNE 7 FA
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

16
NEPTUNE 7 FA
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.

17
NEPTUNE 7 FA
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.

18
NEPTUNE 7 FA
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.

19
NEPTUNE 7 FA
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.

20
NEPTUNE 7 FA
1) Options / model variants
Original instructions
EN 7 Maintenance
7.1 Maintenance guide-
lines
Water filters are fitted at the
water and pump inlets to pre-
vent large particles of dirt from
entering into the system.
1. Unscrew quick coupling.
2. Remove filter with tool and
clean it.
1. Open hose clips
2. Replace fuel filter
3. Close hose clips
4. Dispose the cleaning solu-
tion/damaged filter in ac-
cordance with the disposal
regulations.
7.2 Maintenance schedule
7.3 Maintenance work
7.3.1 Water filters
7.3.2 Maintenance of fuel
filter
Weekly After the first 50
operating hours Every six months or 500 operating hours As re- quired
Water filters 
Oil filter 
Checking the pump oil quality 
Changing the pump oil 
Emptying the fuel oil tank 
Flame Sensor 
To avoid hazards, damaged parts must be replaced either by your
GERNI dealer, their customer service or a similarly qualified per-
son.
Ensure that the machine is regularly serviced by authorised GERNI
dealers in accordance with the maintenance plan. Failure to do so
will invalidate the warranty.
The cleaner must be disconnected from its power source during
cleaning of the machine, maintenance, when replacing parts or
converting the machine to another function.