SO4500 - Pressure washer NILFISK - Free user manual and instructions
Find the device manual for free SO4500 NILFISK in PDF.
| Product Type | High-pressure steam cleaner with vacuum and detergent injection |
| Brand | NILFISK |
| Model | SO4500 |
| Power Supply | 230 V ~ Single-phase, 1950 W |
| Steam Pressure | 4.5 bar |
| Max Steam Temperature | Up to 170 °C (135 °C at source) |
| Heating Body Capacity | 1.8 L |
| Cold Water Tank Capacity | 5 L |
| Steam Hose Length | 4 m |
| Power Cord Length | 10 m |
| Weight | 12 kg |
| Main Functions | Steam cleaning, detergent injection, vacuum |
| Included Accessories | Floor brush, large nozzle, fine nozzle, extension tubes (x2), window squeegee, triangular brush, circular brush 55 mm, fine brushes brass (x5) and nylon (x5) |
| Steam Adjustment | Yes, via regulation knob |
| Indicator Lights | Heater ready, steam ready, cold water filling, LED temperature display |
| Safety | Automatic heating body shut-off if tank empty, thermal cut-out in case of overheating, On/Off switch with indicator |
| Daily Maintenance | Grease the O-ring seals of the hose, wipe the body, wash accessories with soapy water |
| Weekly Maintenance | Inspect the cable and hose, check the casters |
| Warranty | 12 months subject to conditions (wear parts excluded) |
| Professional Use | Yes, designed for professional environment |
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USER MANUAL SO4500 NILFISK
- Cold Water Tank
- Steam Control
- Steam Hose Socket
- Caster with Brake
- Caster No Brake
- Serial Number
B
- On/Off Switch
- Heater On LED
- Steam Ready LED
- Cold Water Refill LED
- Temperature Display LED
Attachments
These Parts were carefully packed at Nilfisk. Please check all accessories on receipt. If any parts are missing or damaged please contact the company in which you purchased this machine, within 7 days of purchase quoting your serial number on the back of the machine.
- 4 Centre Steam Only Hose
- Floor Brush
- Large Brush Elbow
- Large Nozzle
- Detail Brush Nozzle
-
Detail Brass Brush x 5
-
Extension Tube x 2
- Triangular Brush
- Window Squeegee
- Curved Nozzle
- Detail Nylon Brush x 5
- 55mm Round Brush
C
1.

2.

3.

4.

5.

6.

7

8.

9.

10.

11.

12.

Guidance
Congratulations
We would like to take this opportunity to thank you for your purchase of the Nilfisk steam only cleaner.
The SO4500 is manufactured in the EU to the highest quality Standards
This instruction manual contains all of the necessary information to operate and maintain this machine. Please read this instruction manual carefully before you start using or carrying out any maintenance on the machine.
If you use this machine correctly as stated in this instruction manual this machine will fulfil all your steam cleaning needs.
- This machine is intended for use in a commercial cleaning environment. If you do not follow the instructions contained in this manual, situations may arise which may be dangerous or harmful to the machine or the person operating the machine. Read this manual carefully so that you know when such situations can arise.
- Ensure that all operators of this machine are fully trained on how it works.
- Report any problems or damage to the machine immediately to the supplier or a Nilfisk approved supplier for this product. Do not operate the machine until the problem or damage has been resolved.
Getting the Best Results
- Operate the machine in accordance with the instruction manual
-
Maintain the machine in accordance with instruction manual
-
Use only parts supplied by Nilfisk approved distributors
- Use only detergents and cleaning products in the solution tank which have been approved by Nilfisk
Keep this manual in a safe place for future reference and ordering of spare parts
Installation

Warnings
- Lift the machine out of the box.
- Check all accessories are present in the box as shown in Diagram C
This machine has been designed with your safety in mind; however it is important that you observe the following points for safe operation during the operating procedure
This is an electrical product - Do not use in wet weather or allow the machine to get wet.
- Do not discharge steam towards people, danger of scolding. Or towards equipment containing electrical components
- Never allow children to play with this appliance.
- Do not use the machine for other purposes that it was built for.
- Please remember that the steam cleaner operates at temperatures in excess of 170^ . Never use it on objects, which cannot resist the temperature (delicate materials, fabrics, plastics, wood etc). Where any doubt exists check carefully on a part of the material where minor marks will not matter.
- Do not operate the machine or carry out any maintenance out on it
Unless you are trained and authorised to do so
Unless you have read and thoroughly understand this instruction manual.
Operating Procedure
- Fill the cold water tank (Number 1 Diagram A) with clean cold water only.
!! Anything other that clean cold water used in the
Water tank will void the manufacturer's warranty.
- Connect the Steam Hose (Number 1 Diagram C) to the front of the machine (Number 3 Diagram A) ensuring it is pushed in all the way and the pin on the flap locks into the hole on the hose.
!! Grease "O" rings on steam pin before connecting.
!! To release the steam hose, lift the flap and pull.
Operating Procedure cont....
- Plug the power cable into a 240 Volt supply.
!! Inspect the electric cable before every use. If the cable becomes damaged at anytime the complete cable must be replaced by a Nilfisk approved distributor.
!! Never touch the power cable or plug with wet hands
!! Always unplug the machine when
i. The machine is not in use
ii. Cleaning the machine
iii. Any maintenance work is being carried out
- Switch the On/Off switch (Number 7 Diagram B) to the ON position. The Heater On light LED (Number 8 Diagram B) will illuminate.
- Allow approximately 5 minutes for the boiler to heat the water
-
When the Steam Ready LED (Number 9 Diagram B) illuminates the machine is ready to be used.
-
The handle controls are now active.
The fan switch on the hose handle will release steam when pressed.
- Pressing the detergent switch located on the top of the handle will activate the detergent pump. Hold the switch as long

as you need to dispense the detergent. Releasing the switch will stop the detergent supply.
- The steam output can be adjusted by the steam control knob (Number 2 Diagram A)
- Choose and fit the required accessory (Diagram C) to the hose handle.
!! When changing accessories during use please note these will be hot.
During Use
Cold Water Tank Empty(Number 1 Diagram A)
- Refill the cold water tank when the refill cold water LED (Number 11 Diagram B) is illuminated. A buzzer will sound and the steam will no longer come out of the nozzle when the steam switch on the handle is pressed.
- The pumps will not work when the cold-water tank is empty.
- Once the cold water refill LED is illuminated the boiler heater will remain on for 30 minutes. If the cold-water tank is not refilled within 30 minutes and the machine is left powered on the boiler heater will switch off.
Safety Precautions
This machine is to be used by trained operatives only
DO
- Check the cable and plug are safe and intact before plugging the machine in.
- Place cleaning in progress signs where necessary
- Point the steam nozzle away from your body during use
- Clean machine after each use
DON'T
- Use the machine near people, children or animals
- Point steam at electrical apparatus
- Use the machine to clean the machine down
- Do not use on Velvet, satin or leather
- Leave the machine unattended
Maintenance
Warning: Disconnect the machine from the mains before cleaning or carrying out any maintenance work.
Daily Maintenance
To be carried out every day or every 8 hours of operation.
- Grease "O" rings on the steam pin in the steam hose.
- Wipe down the body of the machine with a clean damp cloth
- Always wash the accessories in hot soapy water
DO NOT IMMERSE THE MACHINE OR HOSE IN WATER
- Wrap the power cable around the handle before storage.
Weekly Maintenance
To be carried out every week or every 50 hours of operation.
As for daily maintenance plus the following:
- Inspect the power cable for any signs of damage. If damaged do not repair, contact the supplier of this product. Do not use until repaired.
- Inspect the hose assembly for any signs of damage. If damaged do not repair, contact the supplier of this product. Do not use until repaired.
- Inspect castors and wheels to ensure all securing bolts are fully tightened.
Service & Guarantee
Service
If you require a service or advice on using or maintaining your machine please contact your Nilfisk approved distributor
Guarantee
Nilfisk guarantees that if within 12 months from the date of purchase this appliance, or any parts thereof, is proved to be defective by reason of faulty workmanship or materials, we will at our option repair or replace the same free of charge for labour and materials, provided that:
- The appliance has been installed and used in accordance with our operating and servicing instructions.
- If the appliance has been serviced, maintained, repaired, modified taken apart or tampered with by any person not authorised by us, then we will not be liable under this guarantee for any fault arising from their defective workmanship.
- We shall not be liable under this guarantee for any fault in the appliance arising from the use of spare parts not supplied and recommended by us.
- Excluded from this guarantee are parts that need replacement due to normal wear and tear such as hoses, nozzles and accessories.
Technical
Technical Information
Boiler
Wattage:
Type:
Capacity:
Continuous Fill
Steam Pressure
Steam at source:
1950W
Stainless Steel
1.8 Litres
Yes
4.5 Bar
135^ C>
Electrical
Voltage
230V\~single phase
Low Voltage Controls
5V
Cord length
10m
Capacities
Boiler
1.8 Litres
Cold Water Tank
5 Litres (easy fill)
Weight
12kg
Trouble Shooting
| Symptom | Possible cause | Action |
| No power | Not connected / Faulty socket | Check connection to wall socket and socket switch. Try in another wall socket |
| On / Off switch not on | Press On / Off switch which will illuminate when on | |
| Fuse blown | Replace fuse with approved 13A fuse | |
| Unknown | Call for service | |
| No steam | Steam Control turned down fully clockwise | Turn the control to half way |
| Steamer not ready | Wait for the “Ready to steam” light to illuminate | |
| Clean water tank is low (beeping sound& "refill" light is lit) | Pour water into the clean water tank until the beeper stops. The steam handle will work again. | |
| Unknown | Call for service | |
| No steam, Just water | Steamer not ready | Wait for the “Ready to steam” light to illuminate |
| Boiler at pressure and not heating(temperature less than 110°C) | Hold the steam switch on for approximately one minute, ever if just water is coming out. This will result in the heater coming back on | |
| Unknown | Call for service | |
| Steam Leaking from front socket | “O” Rings split | Change and re grease “O” Rings. To avoid this happening ensure “o” rings are grease before every use. |
| “O” rings worn | Change and re grease “O” Rings. To avoid this happening ensure “o” rings are grease before every use. | |
| Unknown | Call for service |