Page 1
107141020 F (09.2016)
MC 5M - MC 6P - MC 7P
Operating
instructions
Page 2
Page 3
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. Please note
the warning signs placed on the machine.
Before starting up your high- pressure washer for the first time, instructions must be
read through carefully. Save all the instructions for later use. Instructions contains:
Part 1: Safety instructions. Part 2: Instructions for use.
This symbol marks safety instructions related to connection of the machine to water
mains.
Do not inhale fumes.
Rebounding object.
Hot surface.
Steam.
Electrical components.
Dangerous voltage.
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.
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 knowledge, 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 machine is subject to the applicable local safety regulations and proper use.
Please refer to Opera ting Instructions for recommended use, maintenance and problem solving
• Never spray electrical equipment with water: danger for persons, risk of short-circuiting
150°C
Page 4
Original instruction4
• Never detach the high pressure hose while the machine is in operation.
HOT WATER: Danger of scalding! Never dismount high-pressure hoses at water temperatures above 50°C.
• High temperature on the lance and hose after hot water use.
150°C
IMPORTANT: Prior to dismounting of the high-pressure hose, the machine should be
cooled down. After cooling down, stop the machine and close the shut-off cock. Then activate
the trigger of the spray handle to relieve the high-pressure hose of pressure.
• Beware of hot water and steam discharge up to 150°C when operating in steam stage.
• After use of the hot water/steam function the high-pressure cleaner must be flushed with cold
water for about 1 min. High temperature on the lance and hose after hot water use.
3 Before starting the cleaner DO READ INSTRUCTIONS FOR USE BEFORE USE!
Before use, check that the machine is safe and in proper condition and in upright position 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 ma-
chine 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.
• For safety reasons, hoses, spray lances and other accessories should always be thawed prior
to use. MIN: 2°C/ 36°F.
NOTE: If your 3-phase cleaner was supplied without a plug, have it fitted with a suitable
3-phase plug with earth conductor.
WARNING! Before use of water jet, assure that the high pressure hose
with the spray handle is safely connected by an audible click to the lance
• 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
• 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 protective 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 handle, 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 protective 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.
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Original instruction 5
• 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
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.
• Do not operate belt-driven units without attached belt cover
• The machine must not be used in flammable or explosive environments. When using the machine, it must stand at least 1 m from buildings, etc.
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
If the machine don´t have a watertank, the machine is only allowed to be connected
with the potable water mains, when an appropriate backflow preventer has been installed, Type
BA, according to EN 60335-2-79. The backflow preventer can be ordered thought Gerni Servicecenter. 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 thought Gerni Servicecenter.
WARNING! Water that has flowed through backflow preventer and high pressure washer
is considered to be non-potable.
6 Electrical connection
The connection of the electrical supply must be performed by an qualified electrician
and comply with IEC 60364-1. The earth wire must be connected to correct potential and it is
recommended that the electric supply to this machine should include either a residual current
device or another device that will protect the user against indirect contact. The electrical installation to the machine must be according to local regulations.
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 keeps 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).
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Original instruction6
7 Safety devices
• Thermal sensor: A thermal sensor protects the motor against overloading. The machine will
restart after a few minutes when the thermal sensor has cooled.
• Locking device on spray handle: The spray handle features a locking device. When the
pawl is activated, the spray handle cannot be operated.
HOT WATER: • Safety 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
safety valve is set and sealed at the factory and must not be adjusted.
• EXH thermal sensor: A thermal is mounted in the exhaust pipe, if the temperature exceeds
a pre-set temperature value, the heat function stops and a manual reset is needed.
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 maintenance work or
cleaning of the machine.
Combustion engine powered machines: NOTE! Before cleaning and maintenance of the
high pressure washer, always remove the spark plug cable.
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 washer. 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
cleaner. 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.
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Original instructions
MC 5M - MC 6P - MC 7P
Symbols used to mark
instructions
Safety instructions in these
operating instructions which
must be observed to prevent
risks to persons are marked with
this danger symbol.
Before starting up your highpressure washer for the first
time, this instruction manual
must be read through carefully.
Save the instructions for later
use.
This indicates tips and instructions to simplify work and to ensure safe operation.
This symbol is used to mark
safety instructions that must be
observed to prevent damage
to the machine and its performance.
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Original instructions
MC 5M - MC 6P - MC 7P
2 Description
2.2 Purpose 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.
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.
2.1 Use per day We recommend these products for an optional use of approx.
X-hours use per day.
MC 5M
MC 6P
MC 7P
0 8+ Hours use per day
Recommended for use x hours / day
0 8+ Hours use per day
Recommended for use x hours / day
0 8+ Hours use per day
Recommended for use x hours / day
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MC 5M - MC 6P - MC 7P
2.3 Operating elements 1. Push/pull handle
2. Spray gun
3. Electrical lead
4. Holder for high pressure hose
5. High-pressure hose
6. Fastening screw
7. Lance
1)
8. Parking brake
1)
9. High-pressure hose connection (on standard models without hose
reel)
1)
10. Water connection and water inlet filter
11. Oil inspection slide
12. Pressure gauge
1)
13. Main switch
14. Chemical dosing regulation
1)
15. Water flow regulation
1)
16. Chemical tank
1)
17. Cover lock
1
5
4
3
16
6
4
7
2
14
12
11
13
15
10
8
9
17
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MC 5M - MC 6P - MC 7P
3 Before starting the cleaner
3.1 Setting up the cleaner
3.2 Check the oil level 4. Check the oil level.
On level ground, the oil
should be above MIN level
(A), when the oil is cold.
CAUTION!
Never lift the cleaner alone.
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. Unfold and lock the handle in
working position.
3
A
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MC 5M - MC 6P - MC 7P
3.5 Connecting the water
supply
1. Rinse the water supply hose
briefly in order to prevent
sand and other dirt particles
entering into the machine.
2. Connect water supply hose
to the machine.
3. Open water tap.
3.4.2 Machines with high
pressure hose reel
1. Put the quick connector of
the high pressure hose (A)
onto the nipple on the axle.
2. Put the high pressure hose
into the hose guide (B) and
fix it with the clip1).
3. Release the brake (C) on the
hose reel guide1) and wind up
the high pressure hose.
A
B
C
3.3 Fill up detergent tank
1)
1. Fill up detergent tank with
prediluted Gerni detergent.
2. Pull detergent hose and filter
out of the storage and put it
through the opening of the
detergent tank filler cap.
3.4 Connecting the high
pressure hose
3.4.1 Machines without high
pressure hose reel
1. Put the quick connector of
the high pressure hose onto
the nipple on the cleaner.
NOTE!
The maximum length of
high pressure hose is 50 m.
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MC 5M - MC 6P - MC 7P
3.6 Electrical connection
CAUTION!
Before connecting devices with
voltage changeover: Check that
the pre-selected voltage on the
machine corresponds with the
voltage of the electrical installation. Otherwise the electrical
devices of the machine can be
destroyed 1).
NOTE!
In the case of poor water quality
(sand, etc.), we recommend that
a fine water filter is fitted to the
machine. Max 50 Micron filter.
We recommend the use of a textile-reinforced water hose with a
nominal diameter of min. 3/4"
(19 mm).
CAUTION!
When using a cord reel:
Unwind the cord completely.
CAUTION!
The cleaner may only be connected to a correctly installed
electrical installation.
1. Observe safety instructions
in chapter 1.
2. Put the plug into the electrical socket.
400V
400V
230V
230V
230V / 400V
(220V /440V)
Nilfisk
ALTO
,
3.6.1 Releasing the cable 1. Turn the cable hook (A).
2. Release the cable (B).
3. Turn back the cable hook.
A
B
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Original instructions
MC 5M - MC 6P - MC 7P
Installation guide
c c
3.7 BA valve
(a) Female
coupling
BA valve
(b) Male
coupling
Maintenance
1. Mount a male coupling on the water tap.
2. Connect (a) on the BA valve to the water tap.
3. Mount a female coupling on the water inlet hose.
4. Connect (b) on the BA valve to the water inlet hose.
5. Connect the water inlet hose to the high pressure washer.
6. Turn on the water and start the machine.
At least once a year, check the function as follows:
1. After work, switch off the high pressure cleaner.
2. Close the water tap valve.
3. Release the pressure in water the supply hose by triggering the
spray pistol.
4. Dismount the backflow preventer. Water has to come out of the
drain opening (c) (max. 100ml) to ensure separation of the potable
water.
5. If this is not the case, try cleaning the BA valve or contact your
Gerni representative.
This high pressure washer/cleaner is only allowed to be connected with the drinking water mains, when an appropriate
backflow preventer has been installed, Type BA according to
EN 60335-2-79.
The BA valve can be ordered under number:
• BA valve including GARDENA couplings: 106411177
• BA valve including NITO couplings: 106411178
• BA valve including GEKA couplings: 106411179
• BA valve without couplings: 106411184
The couplings can be ordered under number:
• 3/4” GARDENA (a): 1608629
• 3/4” GARDENA (b): 32541
• 3/4” NITO (a): 1602945
• 3/4” NITO (b): 1600659
• 1/2” NITO (b): 1604669
• 3/4” GEKA (a): 1718
• 3/4” GEKA (b): 1311
CAUTION
• The backflow preventer can be mounted either vertically or horizontally, and the drain opening (c) must be mounted pointing
downwards.
• Water flowing from the drain opening (c) must be able to flow
freely.
• If there is a risk of running sands in the inlet water (i.e. from your
own well), an additional filter should be mounted between the
water tap and backflow preventer.
• 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 absorb possible pressure peaks.
• As soon as water has flown through the BA valve, this water is
not considered to be drinking water any more.
• Protect the backflow preventer to any exposure to frost.
• Keep the backflow preventer clean, and free of dirt.
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MC 5M - MC 6P - MC 7P
4 Control / Operation
4.1 Connecting the spray
lance to the spray gun
1. Pull back the blue quickrelease grip (A) of the spray
gun.
2. Insert the nipple of the spray
lance (B) into the quickrelease connection and release the coupling (A).
3. Pull the spray lance (or other
accessory) forwards to check
that it is securely attached 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 when it is
connected to a water
supply
1. Main switch
Turn the switch to position
" I ".
2. Unlock the spray gun and
operate it.
3. Lock the spray gun even during short pauses.
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.
DSS-models switch off with a
delay of 20 seconds1).
A
B
Seite 95 Bild 1 ergo ein
O
I
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MC 5M - MC 6P - MC 7P
4.2.2 Switching on the
cleaner when it is
connected to open
tanks in suction mode
1)
(Flow activated model)
1. Before connecting the
suction set: 61256 to the
cleaner, fill the hose with
water.
2. Turn the main switch to posi
tion " M ".
3. Unlock the spray gun and
operate it.
4. To start the cleaner again,
operate the main switch
again.
0
I
M
NOTE!
The cleaner automatically
switches off after more than 5
minutes of inactivity.
See chapter 9.4 for max. suction
height.
4.2.1 Switching on the
cleaner when it is
connected to open
tanks in suction mode
1)
(Pressure activated
model)
1. Before connecting the
suction set: 61256 to the
cleaner, fill the hose with
water.
2. Turn the main switch to posi
tion " I ".
3. Unlock the spray gun and
operate it.
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Original instructions
MC 5M - MC 6P - MC 7P
MAX
CHEM
MAX
CHEM
4.3 Pressure regulation
with Tornado Plus
lance and
PowerSpeedVario Plus
lance.
1. Turn the twist grip on the
lance:
– High pressure =
clockwise (+)
– Low pressure =
anticlockwise (–)
4.4 Pressure
regulation with the
FlexoPowerPlus
nozzle head and the
PowerSpeedVario Plus
lance.
1. Twist cap of the FlexoPowerPlus nozzle head:
– High pressure = MAX.
– Low pressure = MIN.
(CHEM)
4.5 Using cleaning agents 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.
2. Tornado Plus lance and PowerSpeedVario Plus lance1):
Set pressure regulation on
spray lance to low pressure
(–), or FlexoPowerPlus
nozzle head1):
Turn cap of the FlexoPow-
erPlus nozzle head towards
„CHEM“ up to the stop.
3. The intaken volume of cleaning agent can be regulated by
turning the metering valve.
4. Select tank A by turning the
merering valve on "A-side".
Select tank B by turning the
metering valve on "B-side"
5. Main switch
Turn the switch to position
" I ".
6. Operate the spray gun.
NOTE!
Never allow cleaning agent
to dry on the surface to be
cleaned. The surface may be
damaged.
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MC 5M - MC 6P - MC 7P
4.6 Lifting with crane
1. Before crane lifting the
machine should be in
balance. Loosen the screw
(A), push the handle (B) a
little forward.
2. When the two marks are
aligned (C), the handle is in
crane-lifting -position.
3. Be carefull to fasten the
screw (D) in the lifting
position.
4. Wrap a belt strop around
center of the handle (E)
for the crane to hook in.
WARNING!
Do not stand under the
machine hanging in the
air.
AB
D
E
C
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Original instructions
MC 5M - MC 6P - MC 7P
5 Applications and methods
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.
5.1.1 Soaking 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 10 - 30 minutes before
pressure washing. The result will be a much quicker high pressure
cleaning process.
5.1 Techniques
5.1.2 Detergent and Foam 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 but never let it dry on the surface
being cleaned.
5.1.3 Temperature 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 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.
5.1.5 High Water Flow or
High Pressure
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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MC 5M - MC 6P - MC 7P
5.2 Some typical cleaning tasks
5.2.1 Agriculture
Task Accessories Method
Stables
Pig Pens, Sties
Cleaning of
walls, floors and
equipment.
Detergents
Chemical Foam
Injectors
Foam lance
Powerspeed lance
Floor Cleaner
Universal
Alkafoam
Disinfectant
DES 3000
DES 4000
1. Soaking – apply foam to all surfaces (bottom to top)
and wait for approx. 10 - 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.
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 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
Task Accessories Method
Vehicle bodywork
Detergents
Standard lance
Detergent injection
Curved lances and
underchassis washers
brushes
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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MC 5M - MC 6P - MC 7P
5.2.3 Buildings and Equipment
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.
Task Accessories Method
General surfaces
Metallic equipment
Detergents
Foam injectors
Standard lance
Curved lances
Tank cleaning
head
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 10 - 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.
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Original instructions
MC 5M - MC 6P - MC 7P
6 After using the cleaner
6.1 Switching off the
cleaner
1. Turn the main switch to position „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.
O
I
6.2 Disconnecting supply
lines
1. Remove the water hose from
the cleaner.
2. Pull out the plug from the
electrical socket.
6.3 Rolling up the hose and
storing of lance
Risk of tripping!
To prevent accidents, always
carefully roll up the hose.
1. Wind up the hose as illustrated.
2. Place the spray lance into
the spray lance storage.
1. Winding up the cable from
front over the fastening
screw (A) and clock-wise
around the cable hooks (B).
6.4 Winding up the cable
A
B
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MC 5M - MC 6P - MC 7P
,
6.5 Storing the cleaner
(below 0°C)
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, anti-freeze 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 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.
2. At last turn, lock the cable
end in the cable lock (C).
C
Page 23
23
1)
Options / model variants
Original instructions
MC 5M - MC 6P - MC 7P
7 Maintenance
7.1 Maintenance plan
Weekly
First time
after 50
operating
hours
Every 500
operating
hours
As required
7.2.1
Cleaning water inlet fi lter
QQ
7.2.2
Checking pump oil level
Q
7.2.3
Changing pump oil
Q
7.2.4
First change - and
cleaning of magnet on
drain plug
Q
7.2 Maintenance work
7.2.1 Cleaning water inlet
filter
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 if mounted.
2. Remove the filter and rinse it.
Replace damaged filter.
7.2.2 Checking the pump oil
level
1. Check the oil level.
On level ground, the oil
should be above MIN. level
(A), when the oil is cold.
A
Page 24
24
1)
Options / model variants
Original instructions
MC 5M - MC 6P - MC 7P
7.2.3 Changing the pump oil 1. Before changing the oil, al-
low the cleaner to become
warm.
2. Remove cabinet.
3. Loosen and remove drain
plug (C).The plug magnet has
to be cleaned with a piece of
cloth/napkin to remove metal
particles. Drain the oil into a
suitable container(min.1 litre)
and dispose the oil in compliance with regulations.
4. Fit drain plug and refill with
oil according to chapter 9.4
Technical Data.
5. Oil should be over the MIN.
level in the oil container at
level ground. Fill to MAX (B).
6. Fit the cabinet again.
NOTE!
Special pump oil is required
if the cleaner is used near food.
Please consult your
Gerni dealer.
2. If necessary, add oil. Fill to
MAX level (B).
B
C
Page 25
25
1)
Options / model variants
Original instructions
MC 5M - MC 6P - MC 7P
8 Troubleshooting
Fault Cause Remedy
Pressure drop • Air in the system • Vent the system by
operating the spray gun
several times at short
intervals. If necessary,
operate the cleaner for a
short time without the highpressure hose connected.
• High pressure nozzle blocked
worn
• Clean/replace the high
pressure nozzle
• Detergent tank empty • Top up detergent tank or
set detergent to “0”
Pressure fl uctuations • Pump draws in air (only
possible in suction mode)
• Check that the suction set
is air-tight
• Lack of water • Open water tap
• Water inlet hose is too long
or its cross-section too small
• Use a water inlet hose
that can provide the water
fl ow (Q
max
) defi ned for the
machine
• Lack of water caused by
blocked water fi lter
• Clean the water fi lter in the
water connection (never
work without water fi lter)
• Lack of water because max.
permissible suction height
has not been heeded
• See instructions
The motor does not start when
the cleaner is switched on
••The plug is not inserted
properly, i.e. there is no
current
Oil level too low
••Check the plug, lead and
switch and if necessary
have them replaced by a
skilled electrician
Check oil/add oil
••The mains fuse is switched
off
The overload protection
has been activated due to
overheating or overloading of
the motor
••Switch on the mains fuse
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
When the cleaner is switched
on the motor buzzes without
starting
• The mains voltage is too low
or there is a phase failure.
• Have the electrical
connection checked
• The pump is blocked or
frozen
• Contact the Gerni customer
service
• Incorrect cross-section or
length of the extension lead
• Use lead with correct cross
section or length
The motor switches off • The overload protection
has been activated due to
overheating or overloading of
the motor
• 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
• High-pressure nozzle is dirty • Change the high-pressure
nozzle
Page 26
26
1)
Options / model variants
Original instructions
MC 5M - MC 6P - MC 7P
Fault Cause Remedy
No detergents drawn in • Detergent tank empty • Top up detergent tank
• The cap on the FlexoPowerPlus nozzle head is not set to
low pressure
• Set to low pressure
• Double lance are not adjusted to low pressure.
• Set to low pressure
• Injector is dirty or suction
hose is blocked.
• Clean
9 Further information
9.1 Recycling the cleaner Make the old cleaner unusable immediately.
• 1. Unplug the cleaner and cut the power cord.
Do not discard of electrical appliances with household waste.
As specified in European Directive 2012/19/EU 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.
9.2 Guarantee Our general conditions of business are applicable with regard to the
guarantee.
Subject to change as a result of technical advances.
Page 27
27
1)
Options / model variants
Original instructions
MC 5M - MC 6P - MC 7P
Specifi cations
5M-115/700 5M-115/700
1
Country variant AU AU
2 Possible voltage
V/ph/Hz
240V/1ph/50Hz 240V/1ph/50Hz
3
Fuse
A
15 15
4
Power rating
kW
33
5
PIEC
Working pressure
bar (MPa)
115(11,5) 115(11,5)
6
QIEC
Water flow
l/h
630 630
7
Pmax
Max. water pressure
bar (MPa)
172,5(17,25) 172,5(17,25)
8 Q
MAX
Water flow
l/h
700 700
9
t
max
Max water inlet
temperature,
Intake-Pressure
operation.
°C (°F)
60(140) 60(140)
10
p
max
Max. water inlet
pressure
bar (MPa)
10 (1) 10 (1)
11
Max dry suction
height
m
11
12
Dimensions LxWxH
mm
735x570x1020 735x570x1020
13
Weight
kg
68 68
14
LPA
Sound pressure
level L
PA
(IEC 60335-2-79) KpA= 3 dB
dB(A)
68 68
15
L
WA
Sound power level
L
WA
(IEC 60335-2-79) KWA= 3 dB
dB(A)
82 82
16
a
h
(ISO 5349 ah)
Vibration
m/s2
≤ 2,5 ≤ 2,5
17
Recoil forces,
lance
N
22,8 / 23,2 22,8 / 23,2
18
Oil quantity
L
0,73 0,73
19
Oil type
Castrol
Alphasyn T 150
Castrol
Alphasyn T 150
Page 28
28
1)
Options / model variants
Original instructions
MC 5M - MC 6P - MC 7P
Specifi cations
6P-250/1100 FA 7P-195/1280 FA
1
Country variant AU AU
2 Possible voltage
V/ph/Hz
415V/3ph/50Hz 415V/3ph/50Hz
3
Fuse
A
20 20
4
Power rating
kW
8,5 8
5
PIEC
Working pressure
bar (MPa)
250 (25) 195(19,5)
6
QIEC
Water flow
l/h
1000 1180
7
Pmax
Max. water pressure
bar (MPa)
250 (25) 250(25)
8 Q
MAX
Water flow
l/h
1100 1280
9
t
max
Max water inlet
temperature,
Intake-Pressure
operation.
°C (°F)
80 (176) 85(185)
10
p
max
Max. water inlet
pressure
bar (MPa)
10 (1) 10 (1)
11
Max dry suction
height
m
11
12
Dimensions LxWxH
mm
775x570x1020 775x570x1020
13
Weight
kg
89 89
14
LPA
Sound pressure
level L
PA
(IEC 60335-2-79) KpA= 3 dB
dB(A)
80 75
15
L
WA
Sound power level
L
WA
(IEC 60335-2-79) KWA= 3 dB
dB(A)
93 88
16
a
h
(ISO 5349 ah)
Vibration
m/s2
≤ 2,5 ≤ 2,5
17
Recoil forces,
lance
N
54,1 / 54,9 57,8 / 58,7
18 Oil quantity
L
0,95 1,1
19 Oil type
Castrol
Alphasyn T 150
Castrol
Alphasyn T 150
Page 29
AUSTRALIA:
Nilfi sk Pty LTd
Unit 1/13 Bessemer Street
Blacktown NSW 2148
Phone: 1300 556 710
E-mail: sales@gerni.com.au
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