Nilfisk CONTRACTOR MASTER, CONTRACTOR Instruction manual
CONTRACTOR
CONTRACTOR MASTER
Instruction manual ................................ 1 - 18
Betriebsanleitung .................................. 19 - 36
Manual d’Instructions ............................ 37 - 54
Gebruikershandleiding .......................... 55 - 72
IMPORTANT: Read this instruction man u al
before you start up your high pressure washer
for the fi rst time.
This machine is a hot water high pressure washer pro duc ing
a water jet under high pressure and of a high tem per a ture
which is why severe injury and scalding can occur if the safety
pre cau tions are not observed.
Therefore a complete understanding of the contents of this
instruction manual is required in order to prevent injury to
yourself, objects and persons nearby, and the machine itself.
It is also important that you read the Honda engine manual
provided before you begin to use this machine.
Contents 1 - 18 EN
1.0 Survey of models .................................................2
1.1 Model tag .......................................................2
1.2 Technical data ................................................2
2.0 Instructions for use ............................................. 3
Safety precautions and warnings
2.1 Operation .......................................................3
2.2 Safety devices on the machine ...................... 4
2.3 General ..........................................................4
3.0 Operating instructions ........................................5
3.1 Connections ...................................................5
3.1-1 High pressure hose..............................5
3.1-2 Water connection .................................5
3.1-3 Fuel fi lling for boiler .............................. 5
3.1-4 Fuel fi lling for Honda engine ................ 6
3.1-5 Spray handle - accessories .................6
3.2 Starting-up procedure .................................... 7
3.3 Operation ....................................................... 7
3.4 Temperature control ....................................... 8
3.5 Spray lance, regulation of pressure and
wa ter volume ..................................................8
3.6 End of operation - dismounting of high
pressure hose ................................................ 9
3.7 Transport directions ........................................9
3.8 Storage - frost protection .............................. 10
4.0 Fields of application and working methods ....11
4.1 Fields of application .....................................11
4.2 Working pressure ......................................... 11
4.3 Detergents ....................................................11
4.4 Working methods .........................................12
5.0 Pre-priming .........................................................12
6.0 Functional description ......................................13
6.1 General description ......................................13
6.2 High pressure pump ..................................... 13
6.3 Petrol engine ................................................ 13
6.4 Burner system - control system....................13
7.0 Maintenance .......................................................15
7.1 General ........................................................ 15
7.2 Oil ................................................................. 15
7.3 Water fi lter ....................................................15
7.4 Fuel fi lter ......................................................15
7.5 Descaling of coil ........................................... 17
7.6 Cleaning of high pressure nozzle ................. 17
8.0 Trouble shooting chart ......................................18
Designations EN
(see drawings inside back cover)
1. Water inlet and fi lter (quick-coupling for sup ply
hose)
2. Pump oil level inspection and fi ll cup
3. Oil drain plug for pump
4. Sludge container
5. Engine oil dipstick and fi ller tube
6. Oil drain plug for petrol engine
7. Petrol fi lling cap
8. Boiler
9. Fan for boiler
10. High pressure outlet (male quick-coupling)
11. Battery, 12V
12. Container rack for detergents
13. Jerrican for heating oil
14. Fuel fi lter
15. Frame lift points
16. Thermostat for temperature regulation
17. Thermometer
18. Key for electric start
19. Fuel cock
20. Choke control
21. Pressure gauge for working pressure
22. Knob for adjustment of water volume
23. Fuse (protection of electronic unit ) rating 1.25AT
and RESET button
24. High pressure steam hose
25. Male coupling
26. Quick coupling
27. Valve for pressure regulation
28. Release trigger
29. Standard double spray lance
30. Low pressure nozzle
31. High pressure nozzle
32. Spray handle
33. Safety knob for release
34. Drain plug for coil
35. Model tag
36. Suction hose with fi lter
Nilfi sk-ALTO environmental policy
Nilfi sk-ALTO has a strong commitment to and constantly
works towards a cleaner and improved world. Nilfi sk-ALTO’s en vi ron men tal concern has led to several awards
in recognition of our contribution to an improved environment. We con stant ly review all aspects of our business
from production facilities, to our products and their packaging.
Nilfi sk-ALTO:
Reuses all water which is used in product testing.
Ensures every plastic component is recyclable.
Produces packaging using whereever possible recyclable
cardboard.
United Kingdom: Health and safety at Work Act 1974 Guidance Note P.M. 29
It has always been the Nilfi sk-ALTO policy to ensure that all Nilfi sk-ALTO products are safe and without risk to health or safety when
properly used.
Nilfi sk-ALTO always endeavour to provide customers with every available item of information on the product they are using by the
issue of descriptive instruction man u als, literature and brochures which are constantly being updated and reviewed.
If you have any doubts or problems please do not hesitate to contact Nilfi sk-ALTO Customer Services on 01768 868995 or write to
Nilfi sk-ALTO Consumer Products, Gilwilly Industrial Estate, Penrith, Cumbria, CA11 9BN.
1
1.0 Survey of models EN
1.1 Model tag
This petrol driven hot water cleaner has the model
des ig na tion Contractor/Contractor Master.
The model designation appears from the text on
the control panel and the model tag.
The tag pro vides the following details:
1. Model designation
2. Nilfi sk-ALTO no.
3. Nozzle
4. Heating power
5. Pump pressure
6. Max. pressure
7. Flow volume
8. Max. temperature
9. Pump pressure
0
0MAX
1
4MAX
88K788(0
-ADEIN$ENMARK
XXXXXXXXXXXXXXX
8888
BAR-0A
BAR-0A
LMIN
²#
88888
88888
88
88
88K7
#/.42!#4/2-!34%2
88888
88888
88
88
)08
XXXXXXX
10. Max. pressure
11. Flow
12. Max. temperature
13. Power absorption
14. Approval
15. Serial number, week and year
1.2 Technical data
Model Contractor Contractor Master
Max pressure, inlet water psi/bar 145/10 145/10
Pre-priming, max suction height ft/m 16/5 16/5
Max temp., inlet water °F/°C 95/35 95/35
Water temperature, adjustable °F/°C 86-302/30-150 86-302/30-150
Heat rating Kcal/h/ kW 1053/71 1053/71
Petrol engine, type Honda GX340LXE Honda GX390LXE
Rated output HP/kW 11/8.2 13/9.6
Petrol consumption at max pressure USgph/ l/h 0.9/3.5 1/3.7
Petrol tank, capacity USg/l 10.6/40 10.6/40
Fuel consumption at Dt = 50°C USgph/ l/h 1.5/5.6 1.6/5.9
Jerrican, capacity USg/l 5/20 5/20
Start system Electric start Electric start
Battery V/ah 12/50 12/50
Spray lance:
Spray angle h.p./l.p degrees 15/65 15/65
Nozzle type 05 - yellow 05 - yellow
Thrust, max kp/N 4.1/40.2 4.8/47
Sound power level L
Sound pressure level L
Data at 12°C inlet water. We reserve the right to make alterations.
according to ISO 3746: 96.4 dB(A).
WA
measured in accordance with ISO 11202 [DISTANCE 1m] [FULL LOAD]: 110 dB(A).
pA
2
2.0 Instructions for use Safety precautions and warnings EN
Before starting up your high pressure washer for the fi rst time, you must read through the following sec tions: 2.0 Instructions for use and 3.0 Operating instructions and follow all instructions to ensure the
pro tec tion of user, surroundings and machine. Upon the unpacking of your machine please check for any
defects. If you fi nd any, we kindly ask you to contact your Nilfi sk-ALTO distributor.
2.1 Operation
This machine produces a high pressure jet of a high temperature and operation contrary to the in struc tions
can cause severe injury!
For your own and the safety of others the following precautions should always be observed:
1. WARNING! Never direct the water jet towards people, pets, electric wiring, or the mac hi ne
itself.
2. WARNING! Never try to clean clothes or footwear on yourself or other persons.
3. We recommend you to wear goggles during operation.
4. Never work barefoot or wearing sandals.
5. WARNING! Operator and anyone in immediate vicinity of the site of cleaning should take
action to pro tect themself from being struck by debris dislodged during operation.
6. According to regulations persons under the age of 18 must not operate cleaning machines
with a work ing pressure above 70 bar (applies to this machine).
7. Only let instructed personnel operate the machine.
8. Don’t start the machine until the high pressure hose has been correctly mounted.
9. Spray handle and lance are affected by a backward force (thrust) during operation - there fore always hold the spray lance fi rmly with both hands.
10. At intervals the machine should be stopped and the spray handle secured against in ad ver tent use by locking the trigger with the locking device.
11. Only activate the trigger by hand. Never tie it up or fi x it in any other way.
12. Avoid damage to the high pressure hose such as running over by a car, squeezing, pulling, knotting/
kinking etc. and keep it away from oil and sharp or hot objects, as such may cause the hose to burst.
13. Never dismount the high pressure hose when the water tem per a ture is above 50°C (risk of scalding)
or while the machine is in op er a tion. Disconnect the cleaner and the water con nec tion and
activate the spray handle before dis mount ing the high pressure hose.
14. Never use the machine in an environment where there could be a danger of ex plo si on.
15. WARNING! High pressure hoses, nozzles, spray handle and connections are important for
safety when operating the machine. Only use the high pressure steam hoses (with an im print ed max tem per a ture of 150°C), nozzles and con nec tions pre scri bed by Nilfi sk-ALTO.
16. For safety reasons only use original Nilfi sk-ALTO accessories and spare parts.
17. In icy conditions never start the cleaner until machine, hoses and accessories have thawed. Otherwise
the machine could be damaged.
18. The cleaner must not be covered during operation.
19. WARNING! The fl ue gases of the motor and the boiler contain poisonous carbon monoxide. Avoid
in ha la tion of ex haust gaes. Never run the ma chine in a closed room.
20. WARNING! Keep children and pets away from the machine during operation. There is a risk of burns.
21. WARNING! The muffl er gets warm during operation and will remain warm for a while after the motor
has been stopped. Be careful not to touch the muffl er while warm.
22. WARNING! Use of a wrong fuel in the boiler may be harzardous.
23. Be aware that boiler and the Honda engine use different fuels.
3
Safety precautions and warnings EN
* Refuel in a well-ventilated area with adequate ventilation and always with the engine stopped.
* It is not allowed to smoke when refi lling with gasoline.
* Do not overfi ll the tank. Make sure that the fi ller cap is closed securely.
* Avoid spilling gasoline when refi lling. If gasoline nevertheless is spilled, the engine must not be started
* If the machine is placed in a trailer, any gasoline spillage must be removed before restar ting the ma-
* Never use an open fl ame near the machine.
* The battery emits explosive gases. Avoid sparks and open fl ames. Make provision for adequate ven ti -
* Always place the machine at a distance of at least 1 m from buildings or equipment during operation.
* Never place infl ammable products such as petrol and matches etc. close to the ma chine during ope ra ti on.
* Never place the machine in the immediate vicinity of sources of heat (gas burners, heaters etc.).
* Always let the engine cool before transporting it or setting it aside to avoid burns and to reduce the risk
DANGER OF EXPLOSION!
before the spilled gasoline has been removed.
chine.
la ti on during recharge in closed rooms.
DANGER OF FIRE
of fi re.
2.2 Safety devices on the machine
Circulation valve (safety valve)
The pressure side of the high pressure pump is fi tted with a circulation valve (safety valve). This valve
cir cu lates the water back to the suction side of the pump when the spray handle is closed or if a nozzle
is blocked. The circulation valve has been constructed as a safety function ensuring that the pres sure will
never exceed the working pres sure by more than 25 bar. At this pres sure the circulation valve will au to mat i cal ly switch from high pressure to cir cu la tion mode.
Never let the machine run for more than 5 min. upon release of the spray handle as it may be damaged.
The valve has been adjusted and sealed from the factory. This adjustment must not be changed! The
cir cu la tion valve ensures that the machine becomes devoid of pressure when it is stopped.
Motor protection
The engine will automatically stop if the oil level is insuffi cient. The engine can be restarted when having
been re fi lled with oil.
2.3 General
1. It is not allowed to clean asbestos-containing surfaces with high pressure, unless using spe cial equip ment.
2. Persons under the infl uence of alcohol, drugs and medicine should not operate the machine.
3. When using detergents the enclosed in struc tions should always be strictly observed.
4. Don’t use the machine if important parts of the equipment are damaged - i.e. safety devices, high pres-
sure hoses, spray handle, cabinet.
5. WARNING! Battery acid contains corrosive sulphuric acid. Avoid contact with skin, eyes and clothes.
Even through your clothes the sulpuric acid may cause etching. If you get acid on your skin, fl ush with
suffi cient water. If you get battery acid in your eyes, fl ush carefully with water for at least 15 minutes and
send for a doctor.
6. WARNING! Battery acid is toxic. If battery acid is swallowed: Drink a lot of water or milk. Then more milk,
whipped eggs or vegetable oil and send for a doctor immediately.
7. The most effi cient cleaning is obtained if you adjust the distance to the surface which is to be cleaned.
Thus you will also avoid damaging the surface.
4
3.0 Ope ra ting instructions EN
3.1 Connections
3.1-1 High pressure hose
Only use Nilfi sk-ALTO high pressure
10
24
The high pressure hose (24) with imprinted max working pres su re and temperature (150°C) should be
attached to outlet socket (10) by quick coupling.
3.1-2 Water connection
steam hoses with an imprinted max
tem pe ra tu re of 150°C.
Max length of extension hose: 50 m.
1
The water supply system must supply the water volume stated in section “1.2 Tech ni cal data”.
Let water run through the inlet hose to remove any impurities.
Attach the water inlet hose to the water connection (1).
If there is a risk of impurities (i.e. running sand) in the inlet water, an external water fi lter should be mount ed beyond the internal fi lter. Please contact your Nilfi sk-ALTO distributor for further in for ma tion.
NOTE: Connection to the public mains according to regulations.
Min length of hose: 6 m. 3/4".
Clean water inlet fi lter (1) at monthly
intervals.
Max water pressure 10 bar.
3.1-3 Fuel fi lling for boiler
13
Fuel for the boiler is fi lled into the jerrican (13). Capacity of tank: 20 l. Only use heating oil or diesel oil.
WARNING: NEVER fi ll petrol into this jerrican!
Only use heating oil or diesel oil.
WARNING! Use of a wrong fuel can be
hazardous!
Capacity of tank: 20 l.
5
Operating instructions EN
3.1-4 Fuel fi lling for the Honda engine
WARNING!
7
Petrol for the Honda engine is poured into the petrol tank (7). Only use pure petrol.
Always stop the engine and let it cool for at least two minutes before fi lling with petrol.
Avoid spilling petrol. If petrol nevertheless is spilled while refi lling, the engine must not be started before
the spilled petrol has been removed.
If the machine is placed in a trailer, any petrol spillage must be removed before restarting the machine.
It is forbidden to smoke while refi lling with petrol.
Also read the instructin manual for the Honda engine.
Stop the engine and allow it to cool for
at least two minutes before fi lling with
pe trol.
Check the Honda manual for the petrol
octane specifi cations.
Only use pure petrol in the Honda
engine.
3.1-5 Spray handle - ac ce sso ri es
26
Clean nipple of any impurities each time
the spray lance has been dismounted.
25
Pull for ward the grey quick coupling trig ger of the spray handle (26).
Insert the nipple of the spray lance (25) in the quick coupling and release the trigger.
Pull forward the spray lance or any other accessory to ensure correct mounting before starting the clean er.
Max thrust of spray handle and lance - see section “1.2 Technical data”.
6
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