1. Bubuka
Thank you for choosing the LEHMANN LGALM-4037 Cordless Lawnmower. This manual provides essential information for the safe and efficient operation, assembly, maintenance, and troubleshooting of your new lawnmower. Please read this manual thoroughly before first use and keep it for future reference.
The LGALM-4037 is designed for efficient lawn care, featuring a 37 cm cutting width, a 40-liter grass collection bag, and a 5-step cutting height adjustment from 25 mm to 75 mm. It is powered by a 4.0 Ah battery, providing cordless convenience for lawns up to 400 m².

Image 1.1: The LEHMANN LGALM-4037 Cordless Lawnmower, including the battery and charger.
2. Parentah Kasalametan
PERHATOSAN: Baca sadaya peringatan kaamanan, pitunjuk, ilustrasi, sareng spésifikasi anu disayogikeun sareng alat listrik ieu. Gagalna nuturkeun sadaya paréntah anu didaptarkeun di handap tiasa nyababkeun shock listrik, seuneu, sareng/atawa tatu anu serius.
- Salawasna nganggo alat pelindung pribadi (PPE) anu cocog sapertos kacamata kaamanan, sapatu anu kuat, sareng panyalindungan dédéngéan nalika ngoperasikeun mesin pemotong rumput.
- Jauhkeun barudak, jalma anu ningali, sareng piaraan ti daérah operasi.
- Pariksa daérah anu badé dipangkas sareng miceun barang-barang naon waé anu tiasa dialungkeun ku bilah (contona, batu, iteuk, kawat).
- Do not operate the lawnmower in wet conditions or on steep slopes.
- Always disconnect the battery before cleaning, adjusting, or performing any maintenance on the lawnmower.
- Pastikeun sadaya pelindung sareng alat kaamanan parantos dipasang sareng fungsina leres sateuacan dianggo.
- Ulah pernah ngangkat atawa mawana mesin motong jukut nalika motor keur hurung.
- Store the lawnmower in a dry, secure place out of reach of children.
3. Eusi Paket
Bungkus sadaya barang kalayan ati-ati sareng pastikeun anjeun parantos nampi komponén-komponén ieu:
- LEHMANN LGALM-4037 Lawnmower Unit
- Handle Assembly (upper and lower sections)
- Jukut Koléksi Kantong
- Batré Litium-Ion 4.0 Ah
- Carjer batré
- Manual pangguna (dokumén ieu)
- Safety Key (Child Lock)
If any items are missing or damaged, please contact LEHMANN customer support immediately.
4. Majelis jeung Setup
4.1. Nanganan Majelis
- Attach the lower handle section to the main mower body using the provided bolts and knobs. Ensure it is securely fastened.
- Connect the upper handle section to the lower handle section, aligning the holes and securing with the remaining bolts and knobs.
- Route any cables along the handle and secure them with the cable clips provided.
4.2. Grass Collection Bag Assembly
Assemble the grass collection bag by attaching the fabric bag to the plastic frame. Ensure all clips are securely fastened.
4.3. Ngeusi batre sarta Instalasi
- Before first use, fully charge the 4.0 Ah battery using the supplied charger. Connect the charger to a power outlet and insert the battery. The indicator lights on the charger will show the charging status.
- Once charged, slide the battery into the battery compartment on the lawnmower until it clicks into place.
- Insert the safety key into its slot next to the battery. The mower will not operate without the safety key inserted.

Image 4.1: The 40V Lithium-Ion battery and charger. Ensure the battery is fully charged before use.
5. Operasi
5.1. Ngahurungkeun sareng Ngeureunkeun Mesin Pemotong Rumput
- Ensure the battery is installed and the safety key is inserted.
- Pencét jeung tahan tombol kaamanan dina cecekelan.
- Bari nahan tombol kaamanan, tarik uas jaminan ka arah gagang. Motor bakal ngamimitian.
- To stop the lawnmower, release the bail lever. The motor will stop immediately.
5.2. Nyaluyukeun Jangkungna Motong
The LEHMANN LGALM-4037 offers 5 cutting height positions, ranging from 25 mm to 75 mm. To adjust the cutting height:
- Ensure the lawnmower is turned off and the safety key is removed.
- Teangan tuas adjustment jangkungna di sisi mower nu.
- Pull the lever outwards and move it to the desired height setting. Release the lever to lock it into position.

Image 5.1: The 5-step cutting height adjustment mechanism, ranging from 25 mm to 75 mm.
5.3. Mowing Tips
- Pikeun hasil anu pangsaéna, potong jukut garing.
- Tumpang tindih petak potongan rada saeutik pikeun mastikeun potongan anu rata.
- Avoid overloading the motor by cutting excessively long grass in one pass. Raise the cutting height if necessary.
- Regularly empty the grass collection bag to maintain optimal performance.

Image 5.2: The LGALM-4037 is recommended for lawns up to 400 m².

Image 5.3: The lawnmower features a 37 cm cutting width for efficient mowing.
6. Pangropéa
WARNING: Always remove the safety key and battery before performing any maintenance or cleaning.
6.1. beberesih
- After each use, clean the underside of the mower deck to prevent grass clippings from hardening. Use a brush or scraper; do not use water directly on the motor or electrical components.
- Ngusap handap exterior of mower kalawan iklanamp lawon.
- Clean the grass collection bag regularly. It can be rinsed with water and allowed to dry completely before reattaching.
6.2. Perawatan sabeulah
Periodically inspect the cutting blade for sharpness and damage. A dull or damaged blade can lead to poor cutting performance and increased motor strain. If necessary, have the blade sharpened or replaced by a qualified service technician.
6.3. Panyimpenan batré
Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures. For long-term storage, it is recommended to store the battery with a partial charge (around 50%) to prolong its lifespan.
7. Cara ngungkulan
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Mesin motong jukut teu bisa dihurungkeun | Batré teu dieusian konci kaamanan teu diselapkeun Bail lever not engaged panyalindungan overload diaktipkeun | Ngecas batré Lebetkeun konci kaamanan sacara lengkep Engage bail lever fully Allow motor to cool down, remove obstruction |
| kinerja motong goréng | Sabeulah kusam atawa ruksak Cutting height too low for grass Kantong pangumpul jukut pinuh | Ngasah atawa ngaganti sabeulah Ningkatkeun jangkungna motong Kantong pangumpul jukut kosong |
| Geter kaleuleuwihi | Ruksak atawa henteu saimbang sabeulah Komponén leupas | Mariksa jeung ngaganti sabeulah lamun perlu Pariksa sagala fasteners sarta tighten sakumaha diperlukeun |
| Motor eureun salila operasi | Batré lemah Overload due to thick grass Obstruction in blade area | Ngecas batré Raise cutting height, mow slower Remove obstruction (with battery removed) |
8. Spésifikasi
| Fitur | Spésifikasi |
|---|---|
| Nomer modél | LGALM-4037 |
| merek | LEHMANN |
| Sumber Daya | Batré (40V) |
| Kapasitas batré | 4.0 ahk |
| Lebar motong | 37 cm |
| Motong adjustment Jangkungna | 5 posisi (25 mm - 75 mm) |
| Jukut Koléksi Kantong Kapasitas | 40 liter |
| Disarankeun padang rumput hejo Area | Nepi ka 400 m² |
| Tipe Motor | Brushless Induction Motor |
| Ukuran produk (L x W x H) | 128 x 42 x 105 cm |
| Item Beurat | 12.5 kg |
| Warna | Hideung / Beureum |

Image 8.1: Key specifications of the LEHMANN LGALM-4037 Lawnmower.

Image 8.2: The powerful 40 Volt Induction Motor provides efficient performance.
9. Garansi jeung Rojongan
LEHMANN products are manufactured to high-quality standards and are guaranteed against manufacturing defects. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official LEHMANN websitus.
For technical support, spare parts, or service inquiries, please contact LEHMANN customer service. When contacting support, please have your model number (LGALM-4037) and purchase date ready.
Anjeun tiasa manggihan inpo nu leuwih lengkep sareng wincik kontak dina LEHMANN Store on Amazon.





