Gerni MC 2C User manual

128700578 c (01.2019)
MC 2C
User Guide

Printed in China
Copyright © 2019 Gerni

3
Contents
1 Introduction.................................................................................................. 4
1.1 Symbols used to mark instruction.......................................................................4
2 Safety precautions and working techniques................................................4
3 Description................................................................................................. 10
3.1 Application ........................................................................................................10
3.2 Operation elements and model survey .............................................................10
4 Before you start using your pressure washer ........................................ 11
4.1 Mounting of holders for spray lance..................................................................11
4.2 Mounting of hose hook (only models without hose reel)...................................11
4.3 Mounting of quick coupling ..............................................................................11
4.4 Mounting of high pressure hose .......................................................................12
5 Operating your pressure washer ............................................................. 12
5.1 Connection of high pressure hose ...................................................................12
5.2 Mounting of spray lance....................................................................................12
5.3 Water connection..............................................................................................13
5.4 Telescopic handle .............................................................................................13
5.5 Start and stop of the machine (when connected to a water supply).................13
5.6 Start the machine (when connected to open containers (suction mode)) ........14
5.7 Pressure regulation on the Flexopower Plus-spray lance................................14
5.8 Operation with detergents.................................................................................14
5.9 Regulation of pressure / water volume .............................................................15
6 Fields of application and working methods............................................ 15
6.1 General .............................................................................................................15
7 After using your pressure washer ........................................................... 16
7.1 Storing the washer............................................................................................16
7.2 Winding up of electric cable and high pressure hose ......................................16
7.3 Storage of accessories .....................................................................................16
8 Maintenance............................................................................................... 17
8.1 Cleaning of water inlet filter ..............................................................................17
8.2 Cleaning of nozzle ............................................................................................17
8.3 Cleaning of machine vents ..............................................................................17
8.4 Greasing of couplings ......................................................................................17
9 Trouble-shooting ....................................................................................... 18
10 Further information ................................................................................... 19
10.2 Warranty conditions .......................................................................................19
11 Main Technical Data................................................................................... 19
12 EU Declaration of Conformity................................................................... 20

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1 Introduction
1.1 Symbols used to mark instruction
All pictograms attached to the high pressure washer and its components are shown and ex-
plained in this manual.
Safety instructions marked with this symbol must be observed to prevent personal injury or
serious damage to property.
Caution where there is a risk of damaging the machine or its individual components.
This symbol indicates tips and instructions to simplify work and to ensure a safe operation of
the high pressure washer.
2 Safety precautions and working techniques
Before starting up your machine for the first time, this instruction manual must be read through
carefully. Save the instructions for later use.
WARNING!
• Inhalation of aerosols can be hazardous to health.
Where applicable use a device in order to avoid or re-
duce aerosols production, e.g., a shield covering the
nozzle. For protection against aerosols use a respira-
tory mask of class FFP 2 or higher.
• The high water pressure generated by the machine
and the power connection are particular sources of
danger.
• Machines shall not be used by children or untrained
personnel. Children should be supervised to ensure
that they do not play with the machine.
• Do not use the machine within range of persons un-
less they wear protective clothing.
• Before starting up your machine please check it care-
fully for any defects. If you find any, do not start up
your machine, contact your Gerni distributor. The in-
sulation of the electric cable should be faultless and
without any cracks. If the electric cable is damaged,
an authorized Gerni distributor should replace it.
• Always unplug the power plug before cleaning or
maintenance and when replacing parts or converting


5
the machine to another function.
• Observe the national safety regulations issued, for
example, by the employers liability insurance associa-
tion, social security institutions, occupational safety
and health authorities or other organizations.
Accessories and spare parts
• To ensure the machine safety only use original spare
parts from Gerni or approved by Gerni.
• High pressure hoses, fittings and couplings are impor-
tant for the safety of the machine. Only use hoses, fit-
tings and couplings recommended by Gerni.
Physical, sensory or mental conditions
• This machine is not intended for use by persons
(including children) with reduced physical, senso-
ry or mental capabilities or lack of experience and
knowledge. If the machine is used by people with re-
duced physical, sensory or mental capabilities or lack
of experience and knowledge they shall have been
given supervision or instruction concerning use of the
machine in a safe way and understand the hazards in-
volved.
Applications
This machine has been developed for semiprofessional
routine cleaning such as:
• Professional craftsman jobs, cleaning of vehicles,
boat, caravan and minor cleaning jobs within building
and construction.
Any other use is considered as improper use. Gerni ac-
cepts no liability for any damage resulting from such
use. The risk for such use is borne solely by the user.
Proper use also includes proper operation, servicing
and repairs as specified in this instruction.
Clothing and equipment
Always take action to protect yourself when operating
the machine.


6
• Wear shoes with non-slip soles.
• Wear goggles, ear protection and protective clothes
during operation.
Transporting the high pressure washer
• When transporting the machine in or on a vehicle, it
must be secured, e.g. with straps, so that it cannot slip
or tip over.
• Gerni recommends that the machine is positioned
horizontally on the backside, when transported in or
on a vehicle.
Detergents
• This machine has been designed for use with cleaning
agents supplied or recommended by Gerni. The use
of other cleaning agents or chemicals may adversely
affect the function of the machine.
Before starting the work
Inspecting the machine
• Do not use the machine if a supply cord or important
parts of the machine are damaged, e.g., safety
device, high pressure hose, and spray handle and
spray attachments.
• The trigger of the spray handle must move easily
and automatically return to its starting position when
released.
• Always keep high pressure hose and spray
attachment in good condition (clean, moving easily)
and correctly assembled.
Electrical connection
WARNING!
Minimize the risk for electrical shock:
• Voltage and frequency of the machine (see rating
plate) must match the voltage of and frequency of the
mains supply.
• Only connect the machine to electrical installation
made by a certified electrician and comply with IEC



7
60364-1.
• It is recommended that the electrical supply to the
machine should include a residual current device that
will interrupt the supply if the leakage current to earth
exceeds 30 mA for 30 ms.
• Use motor start/delayed fuses with characteristic C or
D according to IEC/EN 60898-1 / IEC 947-2 or corre-
sponding standards outside IEC.
• Due to the high power consumption of the machine an
appropriate mains fuse is required.
• Inadequate extension cables can be dangerous. If an
extension cable is used, it shall be suitable for outdoor
use, and the connection has to be kept dry and off the
ground.
• Gerni recommends use of an extension cable drum
when cable extension is needed which keeps the
socket at least 60 mm above the ground.
• If the electric cable is damaged, it must be replaced
by an authorized Gerni distributor or similar qualified
person in order to avoid a hazard.
• Connecting the high pressure washer to a supply
system, the max allowed impedance is = 0,4023 
(Zmax). Consult with the supply authority that the
equipment is connected only to a supply of that im-
pedance or less.
Water connection
• This high pressure washer 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 backflow preventer can be ordered under number
106411177.
• As soon as drinking water has flown through the
backflow preventer, it is no longer regarded as
drinking water.
• Operation by suction (e.g. a rainwater vessel) is
carried out without a backflow preventer – see
“Connecting to a pressureless water supply”. The
machine can be connected to water mains with a max.

8
inletpressure of 1 MPa/10 bars and max. 60°C.
Safety devices
Locking device on spray handle:
• The spray handle features a locking device. When the
pawl is activated, the spray handle cannot be ope-
rated.
Thermal sensor:
• A thermal sensor protects the motor against overload-
ing. The machine will restart after a few minutes when
the thermal sensor has cooled.
Pressure safety device:
• An integrated hydraulic safety valve protects the
system from excessive pressure.
During work
WARNING!
• It is not allowed to clean asbestos-containing surfaces
with high pressure.
• Risk of explosion – Do not spray flammable liquids.
• Never draw in fluids containing solvents (e.g., gaso-
line, heating oil, paint thinner or acetone) These sub-
stances damage the materials used in the machine.
Their spray is highly combustible, explosive and poi-
sonous.
• Never direct the water jet at yourself, other persons,
not even to clean clothing or footwear - risk of injury.
• Never direct the water jet at pets or other animals.
• Never direct the water jet at live electrical equipment
or the machine itself - danger of short-circuiting.
• Hold the spray lance firmly with both hands. The spray
lance is affected by a thrust of 27.4 N and a sudden
torque when activating the trigger of the spray handle
during operation.
• Never start up a frozen machine. Frost damages are
not covered by the guarantee!
• Always ensure firm and safe footing.
• The machine shall be operated in an upright position.

9
• If the machine is left or not used for 5 minutes, it must
be switched off on the start/stop switch "O" (1).
After finishing the work
WARNING!
• Always switch off the machine and unplug the power
plug from the socket after work and when leaving the
machine unattended.
• Disconnect water inlet hose between machine and
water supply.
• Always empty pump, hose and accessories of water
after use of the machine and prior to storing.
Maintenance and repairs
WARNING!
• Always disconnect the electrical plug from the socket
prior to maintenance, cleaning and repair.
• Any repair should always be made in Gerni authorized
workshop with original Gerni spare parts.
• Do not attempt any maintenance not described in the
instructions.
• If the machine refuses to start, stops, pulsates, pres-
sure fluctuates, motor busses, fuse blows or no wa-
ter comes out, check the trouble shooting diagram
in these instructions. In case other problems occur,
please contact your local Gerni distributor.
Correct disposal of this product:
This marking indicates that this product should not be
disposed with other household wastes throughout the
EU. To prevent possible harm to the environment or
human health from uncontrolled waste disposal, recycle
it responsibly to promote the sustainable reuse of
material resources. To return your used device, please
use the return and collection systems or contact the
retailer where the product was purchased. They can
take this product for environmental safe recycling.

10
3 Description
This high-pressure washer has
been developed for semiprofes-
sional routine cleaning:
- Professional craftsman jobs,
cleaning of vehicles, boat,
caravan and minor cleaning
jobs within building and con-
struction
Section 5 describes the use of
the high-pressure washer for
various cleaning jobs.
Only use the high-pressure
washer for purposes described
in this manual.
The safety precautions must be
observed to prevent damage
to the machine, the surface to
be cleaned or severe personal
injuries.
3.1 Application
3.2 Operation elements and
model survey
See illustration at the end of
this manual.
1 Start/stop switch
2 Water inlet (with filter)
3 High pressure connection
4 High pressure hose
5 Electric cable
6 Button for regulation of
pressure and water volume
7 Ergo 2000 spray handle
with lock (7a)
8 Flexopower Plus spray
lance
9 Detachable detergent con-
tainer
10 Nozzle cleaning tool
11 Dosing of detergents
12 Hose hook
13 Model tag
14 Button for telescopic handle
15 Telescopic handle
16 Turnable cable hook
Specifications: See model tag
(13) of machine.
We reserve the right to alter the
specifications.

11
4 Before you start using your
pressure washer
4.1 Mounting of holders for
spray lance
Mount the holders for spray
lance on the machine.
4.2 Mounting of hose hook
(only models without
hose reel)
Mount the hose hook (12) on
the handle (2 screws).
Note: the hose hook can be
mounted on the front as well as
on the back. Front position is to
be used if the product is used
together with a special wall
hook for wall storage.
4.3 Mounting of quick
coupling
1. Screw the quick coupling
tight on to the water inlet (2).
Note: The inlet filter must al-
ways be fitted in the water inlet
pipe to filter out major impuri-
ties as these will damage the
pump valves.
Caution: Failure
to fit the filter will
invalidate the
guarantee.


12
4.4 Mounting of high
pressure hose
Attach the high pressure hose
(4) to the spray handle (7).
5 Operating your pressure washer
5.1 Connection of high pres-
sure hose
Attach the high pressure hose
(4) to the high pressure connec-
tion of the machine (3).
Only max. 7 m additional exten-
sion hose can be added.
5.2 Mounting of spray lance 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-re-
lease connection and release
it.
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
handle.
A
B

13
5.3 Water connection An ordinary 1/2" garden hose of
min. 10 m and max. 25 m will
be suitable.
NOTE: Connec-
tion to the public
mains according
to regulations.
IMPORTANT! Only use wa-
ter without any impurities. If
there is a risk of silt, sand or
sediment in the inlet water (i.e.
from your own well), an addi-
tional filter should be mounted.
1. Let the water run through the
water hose before connecting
it to the machine to prevent
sand and dirt from penetrat-
ing the machine.
Note: Check
that the filter is
fitted in the water
inlet pipe and that it is clean
and free from debris.
2. Connect the water hose to
the water supply by means
of the quick connector (inlet
water, max. pressure: 10 bar,
max. temperature: 60°C).
3. Turn on the water.
5.4 Telescopic handle
The machine features a tele-
scopic handle. To raise or lower
the handle, press the button
(14) and move the handle up-
wards or downwards. When a
click is heard, the handle is in
right position.
5.5 Start and stop of the ma-
chine (when connected
to a water supply)
The spray lance is affected
by a thrust during opera-
tion - therefore always hold it
firmly with both hands. IMPOR-
TANT: Point the nozzle at the
ground.
1. Check that the machine is in
upright position.
NOTE: Do not place the ma-
chine in tall grass!
2. Release the trigger lock.
3. Activate the trigger of the
spray handle and let the wa-
ter run until all air has es-
caped from the high pressure
hose.
4. Turn the start/stop switch (1)
to position "I".
5. Activate the trigger of the
spray handle.
Always adjust the distance and
thus the pressure of the nozzle
to the surface, which is to be
cleaned.
Do not cover the machine
during operation.
Note: If the ma-
chine is left or
not used for 5
minutes, it must be switched off
on the start/stop switch "O" (1):
1. Turn the start/stop switch to
position "O".
2. Disconnect the electrical plug
from the socket.

14
hose in a tank or bucket. To
avoid water spillage, crimp
the water inlet hose down in
the water and then connect
the hose to the machine with
the quick coupling and finally
uncrimp the water inlet hose.
2. Dismount spray handle,
lance and nozzle.
3. Turn the start/stop switch to
position "I" and let the water
run, until the air has escaped
from the water hose and the
pump.
4. Mount spray handle and
thereafter lance.
5.6 Start the machine (when
connected to open con-
tainers (suction mode))
The washer can take in water
from a rain water tank as an
example. The hose for the water
supply must not be too long,
approx. 5 m.
Make sure that the water tank is
not placed on a lower level than
the machine.
Use an external filter if the wa-
ter contains impurities.
1. Make sure that the water
hose is filled completely with
water before connecting to
the machine. Place the entire
High pressure
Low pressure/
detergents
5.7 Pressure regulation on
the Flexopower Plus-
spray lance
The pressure can be regulated
on the Flexopower Plus spray
lance.
3. Shut off the water supply and
activate the trigger to relieve
the machine of pressure.
4. Lock the spray handle.
When releasing the trigger of
the spray handle, the machine
automatically stops. The ma-
chine will start again when you
re-activate the spray handle.
5.8 Operation with
detergents
Application of detergents is
NOT possible if an extension
hose is applied.
1. Fill the container with a de-
tergent.
2. Mount the Flexopower Plus
spray lance and adjust it to
low pressure (see section
5.7).
3. Adjust the dosing regulator
(11) to the required volume
of detergent (0-5%).
4. Apply the detergent from
below and upwards.
5. Let the detergent act for the
time stated on the packing of
the detergent and flush with
pure water.
External detergent container
1. Remove the cover with suc-
tion hose from the detergent
container.
2. Mount the cover with suction
hose on the external deter-
gent container.

15
6 Fields of application and working
methods
6.1 General
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 cho-
sen, can increase the efficiency of your pressure washer. Here is
some basic information about cleaning.
6.1.1 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 be-
ing cleaned. Note: It is important that the detergents do not dry up.
Otherwise the surfac that has to be cleaned can be damaged.
6.1.2 Mechanical effect In order to break down tough layers of dirt, additional mechanical
effect may be required. Special wash brushes offer this supplemen-
tary effect that removes stubborn dirt, traffic film or the like.
5.9 Regulation of pressure /
water volume
Working pressure and water
volume can be regulated on the
machine by turning the button
for regulation of pressure / wa-
ter volume (6).
The cover has a standard thread
and fits common detergent con-
tainers. If your container does
not have a standard thread,
detach the filter from the suc-
tion hose and remove the cover.
Remount the filter in the suction
hose.
Extra detergent hose can be
pulled out of the machine.

16

7 After using your pressure washer
7.2 Winding up of electric
cable and high pressure
hose
up carefully.
1. Wind up the electric cable on
the dedicated hooks. Built-in
clip for good holding.
The lower hook can be
turned to release the electric
cable.
2. Place the high pressure hose
on the hose hook.
7.1 Storing the washer The machine should be sto-
red in a frost-free room!
Pump, hose and accessories
should always be emptied of
water prior to storing as follows:
1. Stop the machine (turn the
start/stop switch (1) to posi-
tion “O” and detach water
hose and accessory.
2. Restart the machine and
activate the trigger. Let the
machine run until no more
water runs through the spray
handle.
3. Stop the machine and un-
plug. Wind the electric cable
round the hooks placed on
the side of the machine.
4. Separate spray handle and
spray lance.
5. Detach high pressure hose,
coil it up and place it on the
hose storage.
6. Place spray handle, nozzles
and other accessories in the
holders of the machine.
Should the machine by mistake
be frozen, let it thaw and check
it for damage.
NEVER START-UP A FROZEN
MACHINE.
Frost damages are not
covered by the guarantee!
7.3 Storage of accessories The standard accessories
(spray handle, spray lance
(A) and nozzle cleaning tool)
can be stored on the pressure
washer.
To avoid accidents, the electric
cable and the high pressure
hose should always be wound
A

17
WARNING! Always disconnect
the electrical plug from the
socket prior to maintenance or
cleaning.
To ensure a long and problem
free working life, please take
the following advice:
Wash off water hose, high
pressure hose, spray lance
and accessories before
mounting.
Clean the connectors of dust
and sand.
Clean the nozzles.
Any repair should always be
made in an authorized work-
shop with original spare parts.
8 Maintenance
8.1 Cleaning of water inlet
filter
Clean the water inlet filter regu-
larly once a month or more fre-
quently according to use. Care-
fully loosen the filter with a pair
of pliers and clean it. Check that
it is intact before re-mounting it.
The inlet filter must always be
fitted inside the water inlet pipe
to filter out various impurities,
as they will damage the pump
valves.
CAUTION: Failure to fit the filter
will invalidate the guarantee.
8.2 Cleaning of nozzle A clogging up in the nozzle
causes a pump pressure which
is too high. This is why cleaning
is required immediately.
1. Stop the machine and dis-
connect the nozzle.
2. Clean the nozzle. IMPOR-
TANT: The cleaning tool (10)
should only be used when
the nozzle is detached!
3. Flush the nozzle backwards
with water.
8.3 Cleaning of machine
vents
The machine should be kept
clean so as to let cooling air
8.4 Greasing of couplings To ensure easy connection and
that o-rings do not dry up, the
pass freely through the ma-
chine vents.
couplings should be greased
regularly.

18
9 Trouble-shooting
Please ensure that you check the following before contacting the Gerni service organization:
Symptom Cause Recommended action
Machine refuses to start Machine not plugged in Plug in machine.
Defective socket Try another socket.
Fuse has blown Replace fuse. Switch off other machines.
Defective extension cable Try without the extension cable.
Fluctuating pressure Pump sucking air Check that hoses and connections are air-
tight.
Valves dirty, worn out Clean and replace or refer to local Gerni
or stuck distributor
Pump seals worn out Clean and replace or refer to local Gerni
distributor.
Motor busses Low voltage or Activate the trigger of the spray handle.
low temperature
Machine stops Fuse has blown Replace fuse. Switch off other machines.
Incorrect mains voltage Check that the mains voltage corresponds
to specification on the model tag.
Thermal sensor activated Leave the washer for 5 minutes to cool
down.
Nozzle partially blocked Clean the nozzle (see section 7.2)
Fuse blows Fuse too small Change to an installation higher than the
amp. consumption of the machine.
You may try without the extension cable.
Machine pulsating Air in inlet hose/pump Allow machine to run with open trigger until
regular working pressure resumes.
Inadequate supply of Check that the water supply corresponds to
mains water specifications required (see model tag)
NB! Avoid using long, thin hoses (min. 1/2")
Nozzle partially blocked Clean the nozzle (see section 7.2)
Water filter blocked Clean the filter (see section 7.1)
Hose kinked Straighten out hose.
Machine often starts Contact your nearest Gerni Service
and stops by itself Centre.
Spray handle is leaking Replace seat/ball/O-ring in the valve of the
spray handle.
Machine starts, but Pump/hoses or accessory Wait for pump/hoses or accessory to thaw.
no water comes out frozen
No water supply Connect inlet water.
Water filter blocked Clean the filter (see section 7.1)
Nozzle blocked Clean the nozzle (see section 7.2)
Pump pressure drops Button for regulation of Adjust the button to correct working
pressure / water volume not pressure.
correctly adjusted
In case problems other than the above occur, please phone [phone] or check our website
www.gerni.com.au for your nearest service agent.

19
10 Further information
10.2 Warranty conditions Our general conditions of busi-
ness are applicable with regard
to the guarantee.
Subject to change as a result of
technical advances.
11 Main Technical Data
Type MC 2C-120/520
Electrical Specification
Rated voltage V 230-240
Rated frequency Hz 50
Rated power consumption kW 2.3
Current A 10.0
Protection class Class I/
Class II Class I
Protection degree IP xx IPX5
Hydraulic specification
Rated pressure MPa/bar 12/120
Max. pressure MPa/bar 13/130
Rated water flow l/min/l/hr 7.8/470
Max. water flow l/min/l/hr 8.7/520
Max. water inlet pressure Mpa/bar 1/10
Max. water inlet temperature °C 60
Max. water inlet temp. suction mode °C 20
Weight kg 26.3
Hand-arm vibration according to ISO 5349-1:
Standard nozzle m/s2< 2.5 ±1
Sound pressure level LpA in accordance with
ISO 3744 dB(A) 72 ±2
Sound power level LWA in accordance with
2000/14/EC dB(A) 86
We reserve the right to make alterations.

20
12 EU Declaration of Conformity
We,
Nilfi sk A/S
Kornmarksvej 1
DK-2605 Broendby
DENMARK
Hereby solely declare, that the
Product: HPW - Consumer
Description: 230V 1~, 50 Hz, IPX5
Type: MC 2C series
Is in compliance with the following standards:
EN 60335-1:2012+A11:2014
EN 60335-2-79:2012
EN 55014-1:2017
EN 55014-2: 2015
Compliance to harmonic current emissions is documented in TCF_42331_01
EN 61000-3-11:2000
EN 50581:2012
Following the provisions of:
2006/42/EC
2014/30/EC
2011/65/EC
2000/14/EC – Conformity assessment procedure according to Annex V
- Measured sound power level: 86 dB(A); Guaranteed sound power level: 89 dB(A)
Hadsund, 04-01-2019
Esben Graff
VP Portfolio Management, Consumer