Wilhelmsen Ships UNTIOR HPC 54/1, UNTIOR HPC 67/1 Instruction Manual
OPERATIONAL EFFICIENCY
EN DE FR
UNITOR INSTRUCTION MANUAL
UNTIOR HPC 54/1, 67/1
English .................................................................................................................................... 3
Deutsch ................................................................................................................................ 27
Français ................................................................................................................................ 52
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Original instructions
UNITOR HPC 54/1 64/1 67/1
Contents
Symbols used to mark instructions .....................................................................................................4
1 Important safety instructions ...........................................................................................4
2 Description.........................................................................................................................7
2.1 Use per day .............................................................................................................................7
2.2 Purpose ...................................................................................................................................7
2.3 Operating elements .................................................................................................................8
3 Before starting the cleaner ...............................................................................................9
3.1 Setting up the cleaner ..............................................................................................................9
3.2 Check the oil level ....................................................................................................................9
3.3 Fill up detergent tank .............................................................................................................10
3.4 Connecting the high pressure hose .......................................................................................10
3.5 Connecting the water supply .................................................................................................10
3.6 Electrical connection ..............................................................................................................11
3.7 BA valve .................................................................................................................................12
4 Control / Operation ..........................................................................................................13
4.1 Connecting the spray lance to the spray gun ........................................................................13
4.2 Switching on the cleaner when it is connected to a water supply ..........................................13
4.3 Pressure regulation with Tornado Plus lance and PowerSpeedVario Plus lance. .................15
4.4 Pressure regulation with the FlexoPowerPlus nozzle head and
the PowerSpeedVario Plus lance. .........................................................................................15
4.5 Using cleaning agents ...........................................................................................................15
4.6 Lifting with crane ....................................................................................................................16
5 Applications and methods .............................................................................................17
5.1 Techniques .............................................................................................................................17
5.2 Some typical cleaning tasks ..................................................................................................18
6 After using the cleaner ...................................................................................................20
6.1 Switching off the cleaner ........................................................................................................20
6.2 Disconnecting supply lines ....................................................................................................20
6.3 Rolling up the hose and storing of lance ................................................................................20
6.4 Winding up the cable .............................................................................................................20
6.5 Storing the cleaner (below 0°C) .............................................................................................21
7 Maintenance.....................................................................................................................22
7.1 Maintenance plan ..................................................................................................................22
7.2 Maintenance work ..................................................................................................................22
8 Troubleshooting ..............................................................................................................24
9 Further information .........................................................................................................25
9.1 Recycling the cleaner ...........................................................................................................25
9.2 Guarantee ..............................................................................................................................25
9.3 EU Declaration of Conformity ................................................................................................25
9.4 Technical Data .......................................................................................................................26
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UNITOR HPC 54/1 67/1
Symbols used to mark
instructions
1 Important safety instructions
For your own safety
The high-pressure cleaner may
only be used by persons instructed in its use and who have
been expressly authorised to do
so.
Although extremely easy to operate, children should not be allowed to use the cleaner.
General
Use of the high-pressure cleaner is subject to the applicable local regulations.
Besides the operating instructions and the binding accident
prevention regulations valid in
the country of use, observe recognised regulations for safety
and proper use.
Do not use any unsafe work
techniques.
Transport
Transport of the high-pressure
cleaner is easy on its large
wheels.
For safe transport in and on vehicles we recommend to prevent
the equipment from sliding and
tilting by fixing it with belts.
For transport at temperatures
around or below 0°C, anti-freeze
should be drawn into the pump
beforehand (see chapter 6).
Before starting the cleaner
If your 3-phase cleaner was
supplied without a plug, have
it fitted with a suitable 3-phase
plug with earth conductor, by an
electrician.
Before use, check that the highpressure cleaner is safe and in
proper condition.
Regularly check whether the
power cord is damaged or
shows signs of ageing.
Use the high-pressure cleaner
only when the mains power lead
is in a safe condition. (risk of
electric shock if damaged!).
Check the rated voltage of the
high-pressure cleaner before
connecting it to the mains power
supply. Ensure that the voltage
shown on the rating plate corresponds to the voltage of the local mains power supply.
We strongly recommend that the
power supply to the high pressure cleaner be connected via a
residual current circuit breaker.
This device stops the supply of
electricity if the leakage current
to earth exceeds 30 mA for 30
ms or it has an earth tester circuit.
Operate the cleaner only in an
upright position!
Please observe the regulations
and provisions applicable in
your country. Before putting the
high-pressure cleaner into service, carry out a visual check of
all the major components.
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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UNITOR HPC 54/1 67/1
CAUTION!
High-pressure water jets can be
dangerous if misused. The jet
must not be directed at persons,
animals, live electrical equip-
ment or the cleaner itself.
Wear appropriate protective
clothing and eye protectors.
Do not direct the jet towards
yourself or towards other persons in order to clean clothes or
footwear.
During operation of the cleaner,
recoil forces are produced at the
spraying device and, when the
spray lance is held at an angle,
a torque is also created. The
spraying device must therefore
be held firmly in both hands.
Do not use the cleaner when
other people without protective
clothing are in the working area.
Check that cleaning will not
result in dangerous substances (e.g. asbestos, oil) being
washed off the object to be
cleaned and harming the environment.
WARNING!
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 0° jet. Keep some distance
between high pressure nozzle
and surface in order to prevent
the surface from damage.
Do not use the high-pressure
hose for lifting loads.
NOTE!
The maximum permissible
working pressure and temperature are printed on the highpressure hose.
Do not continue to use the cleaner if the mains power lead or
high-pressure hose is damaged.
Ensure adequate air circulation.
Do not cover the cleaner or operate it in inadequately ventilated
rooms!
Store the cleaner where
it will not be exposed to
frost!
Never operate the cleaner without water. Even brief shortages
of water result in severe damage to the pump seals.
Switch off the cleaner after max.
3 minutes.
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 10641117
7,106411178,106411179,1064
11184. 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. Operation by suction (for example
from a rainwater vessel) is carried out without backflow preventer. Recommended suction
set: 61256. As soon as water
has flown through the BA valve,
this water is not considered to
be drinking water any more.
Operation
CAUTION!
Unsuitable extension leads can
represent a source of danger.
Always unwind cord from the
reels completely to prevent the
power cord overheating.
Plugs and connectors of mains
power leads must be at least
splash water-proof.
Do not damage the mains power
lead (e.g. by driving over it, pulling or crushing it).
Disconnect the power cord by
pulling the plug only (do not pull
or tug the power cord).
Electrical equipment
CAUTION!
Never spray electrical equipment with water: danger for persons, risk of short-circuiting.
The cleaner may only be connected to a correctly installed
plug socket.
Switching on the cleaner may
cause voltage fluctuations.
Voltage fluctuations should not
occur if the impedance at the
transfer point is less than 0.15Ω.
If in doubt ask your local electricity supplier.
Maintenance and repair
CAUTION!
Always remove the plug from
the mains plug socket before
cleaning or carrying out maintenance work on the cleaner.
Carry out only the maintenance
operations described in the operating instructions. Use only original
UNITOR spare parts.
Do not make any technical modifications to the high-pressure
cleaner.
Ensure that the machine is regularly serviced by Authorised UNITOR dealers in accordance with
the maintenace plan. Failure to do
so will invalidate the warranty.
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UNITOR HPC 54/1 67/1
CAUTION!
High-pressure hoses, fittings and
couplings are important for the
safety of the cleaner. Use only
high-pressure parts approved by
the manufacturer!
The mains power lead must not
differ from the version specified
by the manufacturer and may only
be changed by an electrician.
Please contact the UNITOR service department or an authorised
specialist work-shop for all other
maintenance or repair work!
Testing
The cleaner conforms to the
German „Guidelines for Liquid Spray Jet Devices“. The
high-pressure cleaner must be
subjected to a safety examination in accordance with the „Accident Prevention Regulations
for Working with Liquid Spray
Jet Devices“ as required, but
at least every 12 months, by an
authorised inspector and this report must be saved.
After all repairs or modifications to electrical equipment,
the protective conductor resistance, the insulation resistance
and the leakage current must
be measured. Furthermore, a
visual inspection of the mains
power lead, a voltage and current measurement and a function test must be carried out.
Our after-sales service technicians are at your disposal as authorised inspectors.
The complete „Accident Prevention Regulations for Working
with Liquid Spray Jet Devices“
are available from the Carl Heymanns Verlag KG, Luxemburger
Strasse 449, 50939 Cologne or
from the appropriate association of employers’ liability insurances.
Unloader valve
Unacceptably high pressure is
fed back without residual pressure via a bypass line into the
intake line of the pump when the
safety device is tripped.
The unloader valve is set and
sealed at the factory and must
not be adjusted.
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 gun:
The spray gun features a locking device. When the pawl is
activated, the spray gun cannot
be ope rated.
Warning
• Inhalation of aerosols can
be hazardous to health.
• Where applicable use a
device in order to avoid or
reduce aerosols production,
e.g., a shield covering the
nozzle.
• For protection against aerosols use a respiratory mark
of class FFP 2 or higher.
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UNITOR HPC 54/1 67/1
2 Description
2.2 Purpose This high-pressure cleaner has been designed for professional use
in:
– marine industry
– food industry
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.
HPC 54/1
HPC 67/1
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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UNITOR HPC 54/1 67/1
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
107146700
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4
3
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7
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UNITOR HPC 54/1 67/1
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 UNITOR dealer
immediately.
3. Unfold and lock the handle in
working position.
3
A
NOTE! Hose reel is not standard equipment on HPC 54 & 67
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UNITOR HPC 54/1 67/1
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 UNITOR 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.
(Not standard equipment!)
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UNITOR HPC 54/1 67/1
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
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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UNITOR HPC 54/1 67/1
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 UNITOR 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.
•
•
•
•
•
•
•
•
•
•
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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UNITOR HPC 54/1 67/1
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
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UNITOR HPC 54/1 67/1
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
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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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UNITOR HPC 54/1 67/1
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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UNITOR HPC 54/1 67/1
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.
A B
D
E
C
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Original instructions
UNITOR HPC 54/1 67/1
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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UNITOR HPC 54/1 67/1
5.2 Some typical cleaning tasks
Task Accessories Method
Cleaning of
walls, floors and
equipment.
Detergents
Injectors
Foam lance
Powerspeed lance
Floor Cleaner
l
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
disinfectant once the surfaces are perfectly clean.
Machinery 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
Task Accessories Method
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Original instructions
UNITOR HPC 54/1 67/1
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
UNITOR 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
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 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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UNITOR HPC 54/1 67/1
6 After using the cleaner
6.1 Switching off the
cleaner
1. Turn the main switch to posi-
tion „OFF“.
2. Close water tap.
3. Squeeze the spray gun handle until the cleaner is depressurised.
4. Lock the safety catch on the
spray gun.
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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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UNITOR HPC 54/1 67/1
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
22
1)
Options / model variants
Original instructions
UNITOR HPC 54/1 67/1
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
7.2.2
Checking pump oil level
7.2.3
Changing pump oil
7.2.4
First change - and
cleaning of magnet on
drain plug
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
23
1)
Options / model variants
Original instructions
UNITOR HPC 54/1 67/1
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
UNITOR dealer.
2. If necessary, add oil. Fill to
MAX level (B).
B
C
24
1)
Options / model variants
Original instructions
UNITOR HPC 54/1 67/1
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 UNITOR
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
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