1. Gwybodaeth Diogelwch
Please read and understand all safety warnings and instructions before operating the STIER SDR-300 Pressure Washer. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.
- Diogelwch Trydanol: Always connect the pressure washer to a properly grounded outlet. Do not use extension cords unless they are rated for outdoor use and heavy-duty appliances. Keep all electrical connections dry and off the ground.
- Perygl Pwysedd Uchel: The high-pressure jet can be dangerous if misused. Never direct the water jet at people, pets, or electrical equipment. Always wear appropriate personal protective equipment, including safety glasses, gloves, and hearing protection.
- Cyflenwad Dŵr: Ensure the water supply is clean and free of debris. Do not use the pressure washer with hot water or corrosive liquids.
- Sefydlogrwydd: Defnyddiwch y golchwr pwysedd ar arwyneb sefydlog, gwastad i atal tipio.
- Plant a Gwylwyr: Cadwch blant a gwylwyr i ffwrdd o'r ardal weithredu.
- Cynnal a Chadw: Datgysylltwch y cyflenwad pŵer cyn gwneud unrhyw waith cynnal a chadw neu lanhau.
2. Cynnyrch Drosview
The STIER SDR-300 is a powerful and versatile pressure washer designed for various cleaning tasks around your home and garden. Its robust construction and mobile design ensure efficient and flexible operation.
Nodweddion Allweddol:
- Powerful 3200 W motor for effective cleaning.
- Operating pressure of 150 bar and a maximum flow rate of 540 l/h.
- Compact and mobile design with all-terrain chassis for easy transport.
- Integrated accessory storage.
- Color-coded quick nozzles for various applications.
- Detergent application system with adjustable flow.
Cydrannau wedi'u Cynnwys:
Mae'r pecyn yn cynnwys yr eitemau canlynol:
- 1 x STIER SDR-300 Pressure Washer
- 1 x Stainless Steel Spray Gun
- 1 x 5m High-Pressure Hose
- 1 x 5m Steel-Reinforced Hose
- 1 x 5m Connection Cable
- 1 x Soap Bottle
- 1 x Cleaning Stick
- 1 x Hidlydd Mewnfa
- 4 x Quick Nozzles (color-coded)
- 1 x Turbo Nozzle
- 1 x Patio Cleaner Attachment
- 1 x Llawlyfr Cyfarwyddiadau

Figure 2.1: STIER SDR-300 Pressure Washer with included accessories.
3. Gosod
3.1 Cynulliad
- Attach the wheels to the base of the unit if not already assembled.
- Secure the handle to the main body of the pressure washer.
- Connect the high-pressure hose to the outlet on the pressure washer and to the spray gun. Ensure connections are tight.
- Insert the desired nozzle into the spray gun.
3.2 Cysylltiad Cyflenwad Dŵr
- Connect a garden hose (not included) to the water inlet on the pressure washer. Ensure the inlet filter is in place.
- Cysylltwch ben arall y bibell ardd â thap dŵr.
- Turn on the water tap completely to ensure a steady water flow to the pressure washer.

Ffigur 3.1: Cefn view of the pressure washer with water inlet and high-pressure outlet.
3.3 Cysylltiad Pwer
- Uncoil the power cable completely.
- Plug the power cable into a suitable, grounded electrical outlet.
4. Cyfarwyddiadau Gweithredu
4.1 Dechrau'r Uned
- Gwnewch yn siŵr bod yr holl gysylltiadau (dŵr, pibell pwysedd uchel, pŵer) yn ddiogel.
- Trowch y cyflenwad dŵr ymlaen yn llwyr.
- Press the ON/I switch on the pressure washer to start the motor.
- Squeeze the trigger on the spray gun to release air from the system and allow water to flow. Hold the trigger until a steady stream of water emerges.

Figure 4.1: Power switch (ON/I) and pressure control on the unit.
4.2 Defnyddio Ffroenellau Gwahanol
The STIER SDR-300 comes with color-coded quick nozzles for various cleaning tasks:
- Red (0° Nozzle): Extra strong, pinpoint pressure water jet for stubborn dirt. Use with caution.
- Yellow (15° Nozzle - implied by 25° and 40°): For intensive cleaning.
- Green (25° Nozzle): For intensive cleaning.
- White (40° Nozzle): Medium pressure for larger surfaces.
- Black (Chemical Nozzle): Lower pressure for sensitive surfaces and detergent application.

Figure 4.2: Color-coded quick nozzles for various applications.
4.3 Detergent Application
- Fill the soap bottle with appropriate pressure washer detergent.
- Attach the soap bottle to the designated inlet on the pressure washer.
- Use the black chemical nozzle for detergent application.
- Adjust the detergent flow directly on the pressure washer if available.

Ffigur 4.3: Ochr view showing the detergent tank connection.
4.4 Cau i Lawr
- Turn off the pressure washer by pressing the OFF/0 switch.
- Diffoddwch y cyflenwad dŵr yn y tap.
- Gwasgwch sbardun y gwn chwistrellu i ryddhau unrhyw bwysau sy'n weddill yn y system.
- Datgysylltwch y cebl pŵer o'r allfa.
- Datgysylltwch y pibell ardd a'r pibell bwysedd uchel.
5. cynnal
Mae cynnal a chadw rheolaidd yn sicrhau hirhoedledd a pherfformiad gorau posibl eich peiriant golchi pwysedd.
5.1 Cleaning the Inlet Filter
Periodically check and clean the inlet filter to prevent debris from entering the pump. Remove the filter, rinse it under running water, and reinsert it.
5.2 Draenio a Storio
Before storing the pressure washer, especially in freezing temperatures, ensure all water is drained from the pump and hoses to prevent damage.
- Datgysylltwch yr holl bibellau.
- Run the motor for a few seconds with no water supply to expel any remaining water.
- Store the unit in a dry, frost-free location.
5.3 Gofal Pibell ac Ategolion
Inspect hoses and nozzles regularly for wear or damage. Replace any damaged parts immediately. Clean nozzles with the provided cleaning stick if they become clogged.
6. Datrys Problemau
If you encounter issues with your STIER SDR-300 Pressure Washer, refer to the following common problems and solutions:
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Nid yw modur yn cychwyn | No power supply; tripped circuit breaker; faulty switch | Check power connection; reset circuit breaker; contact service |
| Dim pwysau neu bwysau isel | Insufficient water supply; clogged inlet filter; air in pump; worn nozzle | Ensure full water supply; clean inlet filter; bleed air from system; replace nozzle |
| Dŵr yn gollwng | Loose connections; damaged O-rings or seals; cracked hose | Tighten connections; replace O-rings/seals; replace hose |
| Glanedydd ddim yn dosbarthu | Detergent tank empty; wrong nozzle selected; clogged detergent line | Refill tank; use black chemical nozzle; clean detergent line |
7. manylebau
Technical specifications for the STIER SDR-300 Pressure Washer:
| Nodwedd | Manyleb |
|---|---|
| Brand | STIER |
| Rhif Model | SDR-300 (72622601) |
| Ffynhonnell Pwer | Trydan Corded |
| Pŵer Modur | 3200 Gw |
| Pwysedd Uchaf | 225 bar (Max. allowable overpressure) / 150 bar (Operating pressure) |
| Cyfradd Llif Uchaf | 540 Litr yr Awr |
| Hyd Hose | 5 o Fesurau |
| Max. Tymheredd y Dŵr | 50°C |
| Lliw | Gwyrdd |
8. Gwarant a Chefnogaeth
For detailed warranty information, please refer to the warranty card included with your product or visit the official STIER website. If you require technical support or have questions not covered in this manual, please contact your retailer or the STIER customer service department.