MC 5M - MC 6P - MC 7P -
Instructions for use
107141543 G - EN DE FR NL
3
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Options / model variants
Original instructions
MC 5M - MC 6P - MC 7P
Contents
Symbols used to mark instructions .....................................................................................................4
1 Safety instructions ............................................................................................................4
2 Description.........................................................................................................................5
2.1 Use per day .............................................................................................................................5
2.2 Purpose ...................................................................................................................................5
2.3 Operating elements .................................................................................................................6
3 Before starting the cleaner ...............................................................................................7
3.1 Setting up the cleaner ..............................................................................................................7
3.2 Check the oil level ....................................................................................................................7
3.3 Fill up detergent tank
1)
.............................................................................................................8
3.4 Connecting the high pressure hose .........................................................................................8
3.5 Connecting the water supply ...................................................................................................8
3.6 Electrical connection ................................................................................................................9
3.7 BA valve .................................................................................................................................10
4 Control / Operation ..........................................................................................................11
4.1 Connecting the spray lance to the spray gun ........................................................................11
4.2 Switching on the cleaner when it is connected to a water supply .......................................... 11
4.3 Pressure regulation with Tornado Plus lance and PowerSpeedVario Plus lance. .................13
4.4 Pressure regulation with the FlexoPowerPlus nozzle head and the PowerSpeedVario
Plus lance. .............................................................................................................................13
4.5 Using cleaning agents ...........................................................................................................13
4.6 Lifting with crane ....................................................................................................................14
5 Applications and methods .............................................................................................15
5.1 Techniques .............................................................................................................................15
5.2 Some typical cleaning tasks ..................................................................................................16
6 After using the cleaner ...................................................................................................18
6.1 Switching off the cleaner ........................................................................................................18
6.2 Disconnecting supply lines ....................................................................................................18
6.3 Rolling up the hose and storing of lance ................................................................................18
6.4 Winding up the cable .............................................................................................................18
6.5 Storing the cleaner (below 0°C) .............................................................................................19
7 Maintenance.....................................................................................................................20
7.1 Maintenance plan ..................................................................................................................20
7.2 Maintenance work ..................................................................................................................20
8 Troubleshooting ..............................................................................................................22
9 Further information .........................................................................................................23
9.1 Recycling the cleaner ...........................................................................................................23
9.2 Guarantee ..............................................................................................................................23
9.3 EU Declaration of Conformity ................................................................................................23
Technical Data .......................................................................................................................90
4
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Original instructions
MC 5M - MC 6P - MC 7P
Symbols used to mark
instructions
1 Safety 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.
High Pressure Washer SAFETY INSTRUCTIONS
5
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Options / model variants
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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Original instructions
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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Options / model variants
Original instructions
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 Nilfisk dealer
immediately.
3. Unfold and lock the handle in
working position.
3
A
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Options / model variants
Original instructions
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 Nilfisk 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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1)
Options / model variants
Original instructions
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
,
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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Options / model variants
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
Nilfisk 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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Options / model variants
Original instructions
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
O
I
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Options / model variants
Original instructions
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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Options / model variants
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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