1. Ozi nchekwa
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.
- Nchekwa Eletriki: 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.
- High Pressure Hazard: 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.
- Nnyefe mmiri: Ensure the water supply is clean and free of debris. Do not use the pressure washer with hot water or corrosive liquids.
- Nkwụsi ike: Mee ihe nrụnye nrụgide n'elu ụlọ kwụsiri ike, nke dị larịị iji gbochie ịkụnye n'ọnụ.
- Ụmụaka na ndị ọbịa: Debe ụmụaka na ndị na-ekiri ebe a na-arụ ọrụ.
- Nlekọta: Kwụpụ ọkụ ọkụ tupu ime nrụzi ma ọ bụ ihicha ọ bụla.
2. Ngwaahịa gafereview
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.
Akụkụ ndị bụ isi:
- 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.
Ngwa gụnyere:
Ngwungwu ahụ gụnyere ihe ndị a:
- 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 Inlet Filter
- 4 x Quick Nozzles (color-coded)
- 1 x Turbo Nozzle
- 1 x Patio Cleaner Attachment
- 1 x Akwụkwọ ntuziaka

Figure 2.1: STIER SDR-300 Pressure Washer with included accessories.
3. Nhazi
3.1 Mgbakọ
- 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 Njikọ mmiri na-enye mmiri
- Connect a garden hose (not included) to the water inlet on the pressure washer. Ensure the inlet filter is in place.
- Jikọọ nsọtụ nke ọzọ nke paịpụ ubi ahụ na paịpụ mmiri.
- Turn on the water tap completely to ensure a steady water flow to the pressure washer.

Ọgụgụ 3.1: N'azụ view of the pressure washer with water inlet and high-pressure outlet.
3.3 Njikọ ike
- Uncoil the power cable completely.
- Plug the power cable into a suitable, grounded electrical outlet.
4. Ntuziaka ọrụ
4.1 Malite nkeji
- Hụ na njikọ niile (mmiri, ọkpọkọ nrụgide dị elu, ọkụ eletrik) dị nchebe.
- Gbanyụọ mmiri ahụ kpamkpam.
- 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 Using Different Nozzles
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 Ngwa Nchacha
- 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.

Foto 4.3: Akụkụ view showing the detergent tank connection.
4.4 Mechie
- Turn off the pressure washer by pressing the OFF/0 switch.
- Gbanyụọ mmiri dị na mgbata mmiri.
- Fanye ihe na-akpali egbe ịgba ka ịhapụ nrụgide ọ bụla fọdụrụ na sistemụ ahụ.
- Disconnect the power cable from the outlet.
- Kwụpụ eriri ubi na eriri nrụgide dị elu.
5. Nlekọta
Nlekọta anya mgbe niile na-eme ka ogologo ndụ na ịrụ ọrụ kacha mma nke igwe nrụgide gị.
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 Ịwụpụ mmiri na nchekwa
Before storing the pressure washer, especially in freezing temperatures, ensure all water is drained from the pump and hoses to prevent damage.
- Kwụpụ ụdọ niile.
- 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 Nlekọta Paịpụ na Ngwa
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. Nchọpụta nsogbu
If you encounter issues with your STIER SDR-300 Pressure Washer, refer to the following common problems and solutions:
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| moto anaghị ebido | No power supply; tripped circuit breaker; faulty switch | Check power connection; reset circuit breaker; contact service |
| Enweghị nrụgide ma ọ bụ obere nrụgide | Insufficient water supply; clogged inlet filter; air in pump; worn nozzle | Ensure full water supply; clean inlet filter; bleed air from system; replace nozzle |
| Mmiri na-agbapụta | Loose connections; damaged O-rings or seals; cracked hose | Tighten connections; replace O-rings/seals; replace hose |
| A naghị ekesa ncha | Detergent tank empty; wrong nozzle selected; clogged detergent line | Refill tank; use black chemical nozzle; clean detergent line |
7. Nkọwapụta
Technical specifications for the STIER SDR-300 Pressure Washer:
| Njirimara | Nkọwapụta |
|---|---|
| Ụdị | STIER |
| Nọmba nlereanya | SDR-300 (72622601) |
| Isi Iyi Ike | Igwe ọkụ eletrik |
| Ike moto | 3200 W |
| Oke nrụgide | 225 bar (Max. allowable overpressure) / 150 bar (Operating pressure) |
| Ọnụego nfe kacha | 540 Liters per Hour |
| Ogologo eriri | 5 mita |
| Oke. Okpomọkụ mmiri | 50°C |
| Agba | Akwụkwọ ndụ akwụkwọ ndụ |
8. Akwụkwọ ikike na nkwado
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.