Perkenalan
This manual provides essential instructions for the safe assembly, operation, maintenance, and troubleshooting of your Yard Force GMB46C 46cm Self-Propelled Petrol Lawn Mower. Please read this manual thoroughly before using the product and keep it for future reference. Proper use and maintenance will ensure optimal performance and extend the life of your lawn mower.

Image: Yard Force GMB46C 46cm Self-Propelled Petrol Lawn Mower, side view.
Petunjuk Keselamatan
Always follow these safety guidelines to prevent injury and damage to the lawn mower.
- Baca Manualnya: Familiarize yourself with all controls and proper use before operating the machine.
- Alat Pelindung Diri (APD): Always wear sturdy footwear, long trousers, and eye protection. Avoid loose clothing that could get caught in moving parts.
- Kosongkan Area: Before starting, remove all objects such as stones, sticks, wires, bones, and other debris from the lawn that could be thrown by the blade.
- Jauhkan Pengamat: Ensure children, pets, and other people are at a safe distance (at least 15 meters) from the operating area.
- Periksa Sebelum Digunakan: Check the blade, engine, and all components for damage or wear. Do not operate if any part is damaged.
- Penanganan Bahan Bakar: Refuel outdoors only, with the engine off and cool. Do not smoke while refueling. Store fuel in approved containers.
- Operasi lereng: Mow across the face of slopes, never up and down. Exercise extreme caution when changing direction on slopes. Avoid excessively steep slopes.
- Mesin Mati: Always turn off the engine and disconnect the spark plug wire before cleaning, adjusting, or performing maintenance.
- Saluran Pembuangan: Never direct discharge material towards bystanders or allow anyone in the discharge area.
- Keamanan Pisau: The blade continues to rotate for a short period after the engine is switched off. Wait until the blade has completely stopped before performing any checks.
Pengaturan dan Perakitan
Your lawn mower requires some assembly before first use. Follow these steps carefully.
1. Unpacking and Handle Assembly
Carefully remove all components from the packaging. The main chassis, upper and lower handlebar, grass collector, mulching plug, and accessories are included. Attach the lower handlebar to the mower deck, then secure the upper handlebar to the lower section using the provided fasteners.
2. Grass Collector Assembly
Assemble the fabric grass bag onto its frame. Once assembled, lift the rear discharge flap and hook the grass collector onto the mower chassis.

Image: Assembled grass collector attached to the lawn mower.
3. Adding Fuel and Oil
This lawn mower is powered by a Briggs & Stratton 450E series engine. It requires unleaded petrol and appropriate engine oil (typically SAE 30 or 10W-30). Refer to the engine manual for specific oil type and capacity. Jangan mengisi terlalu penuh.
- Pastikan mesin pemotong rumput berada di permukaan yang rata.
- Remove the oil dipstick/fill cap and fill with the recommended engine oil to the 'FULL' mark.
- Remove the fuel cap and carefully fill the fuel tank with unleaded petrol.
- Replace both caps securely.
4. Menyesuaikan Tinggi Pemotongan
The cutting height can be adjusted with a single lever, offering 7 positions from 25 mm to 75 mm.
- Ensure the engine is off and the spark plug wire is disconnected.
- Locate the height adjustment lever, usually near one of the wheels.
- Tarik tuas ke luar dan gerakkan ke pengaturan ketinggian yang diinginkan.
- Pastikan semua roda diatur pada ketinggian yang sama untuk hasil pemotongan yang rata.

Image: Hand adjusting the cutting height lever on the lawn mower.
Petunjuk Pengoperasian
Ikuti langkah-langkah ini untuk pengoperasian mesin pemotong rumput Anda yang aman dan efektif.
1. Menghidupkan Mesin
- Pastikan kabel busi terhubung.
- Press the primer bulb (if equipped) 3-5 times.
- Hold the engine brake lever (bail bar) against the handle.
- Pull the starter cord firmly and smoothly until the engine starts.
2. Teknik Memotong
- Untuk hasil terbaik, potong rumput saat rumput dalam keadaan kering.
- Tumpang tindih sedikit antara potongan kain untuk memastikan hasil potongan yang rata.
- Hindari memotong lebih dari sepertiga tinggi rumput sekaligus.
- The self-propelled function assists in moving the mower forward. Engage the drive lever to activate.
3. Fungsi Mulsa
To use the mulching function, ensure the grass collector is removed and the mulching plug is securely inserted into the rear discharge opening. This allows the finely cut grass clippings to be returned to the lawn as natural fertilizer.
4. Menghentikan Mesin
Release the engine brake lever (bail bar) to stop the engine. Wait for the blade to come to a complete stop before approaching the mower.
Pemeliharaan
Regular maintenance ensures the longevity and safe operation of your lawn mower. Always disconnect the spark plug wire before performing any maintenance.
1. Pembersihan
- After each use, clean the underside of the mower deck to prevent grass buildup.
- Lap bagian luar dengan iklanamp Jangan gunakan mesin cuci bertekanan tinggi langsung pada mesin atau komponen listrik.
- Empty and clean the grass collector regularly.
2. Perawatan Pisau
The diamond-sharpened blade provides an excellent cut. Inspect the blade regularly for sharpness and damage. A dull or damaged blade can lead to poor cutting performance and increased engine strain. Sharpen or replace the blade as needed. Always wear heavy-duty gloves when handling the blade.
3. Perawatan Mesin
- Ganti Oli: Ganti oli mesin setelah 5 jam pertama pengoperasian, kemudian setiap 25-50 jam atau setiap tahun, mana pun yang tercapai lebih dulu.
- Filter Udara: Bersihkan atau ganti filter udara secara teratur, terutama dalam kondisi berdebu.
- Busi: Periksa dan bersihkan busi setiap tahun. Ganti jika aus atau kotor.
- Refer to the separate Briggs & Stratton engine manual for detailed engine maintenance procedures.
4. Penyimpanan
For long-term storage, ensure the fuel tank is empty or treated with a fuel stabilizer. Clean the mower thoroughly, lubricate moving parts, and store in a dry, protected area.
Penyelesaian Masalah
Bagian ini membahas masalah umum yang mungkin Anda temui dengan mesin pemotong rumput Anda.
| Masalah | Kemungkinan Penyebab | Larutan |
|---|---|---|
| Mesin tidak menyala | No fuel; Spark plug wire disconnected; Engine brake not engaged; Fouled spark plug; Stale fuel. | Add fresh fuel; Connect spark plug wire; Hold engine brake lever; Clean/replace spark plug; Drain and refill with fresh fuel. |
| Mesin berjalan tidak lancar atau mati mendadak | Dirty air filter; Stale fuel; Carburetor issues. | Clean/replace air filter; Drain and refill with fresh fuel; Consult a service technician. |
| Performa pemotongan yang buruk | Dull or damaged blade; Cutting height too low; Wet grass; Grass buildup under deck. | Sharpen/replace blade; Adjust cutting height; Mow when grass is dry; Clean mower deck. |
| Getaran berlebihan | Pisau bengkok atau tidak seimbang; Pengencang longgar. | Inspect/replace blade; Tighten all fasteners. If vibration persists, consult a service technician. |
Spesifikasi
| Fitur | Detil |
|---|---|
| Nomor Model | GM B46C |
| Merek | Yard Force |
| Mesin | Briggs & Stratton 450E Series (125cc) |
| Lebar Pemotongan | Tinggi 46cm |
| Penyesuaian Tinggi Pemotongan | 7 posisi (25 mm - 75 mm) |
| Kapasitas Pengumpul Rumput | 55 Liters (Hybrid) |
| Bahan Deck | Baja berkualitas tinggi |
| Fungsi | Cut & Collect, Mulching |
| Sumber Daya | Bertenaga bahan bakar |
| Dimensi Produk (P x L x T) | Ukuran 148x53x103 cm |
| Berat Barang | 31 kg |
Garansi dan Dukungan
Yard Force offers a 2-year warranty on this product, with an additional 1-year extension available upon registration within 28 days of purchase. For any questions, technical assistance, or warranty claims, please contact Yard Force customer service. Support is available 5 days a week for your peace of mind.
Harap simpan bukti pembelian Anda untuk tujuan garansi.