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The DOLMAR ET-70 C and ET-100 C are electric trimmers designed for domestic use in maintaining lawns, flower beds, and path borders. They feature a modern design and are intended for single-person operation, specifically for cutting grass with non-metallic tools. They are not suitable for cutting brush or bushes and should not be used in damp weather conditions such as rain or fog.
The DOLMAR ET-70 C and ET-100 C trimmers are powered by a high-torque electric motor. They utilize a two-line cutter head with quiet trimming line for efficient grass cutting. The device is equipped with a soft grip and an anti-vibration system to ensure comfortable handling. A power cable detensioner is also integrated to prevent accidental disconnections or damage to the cable during operation. The trimmer head automatically adjusts the line length during operation if the line ends are longer than 3 cm, by tapping the head on the ground. For shorter line ends, manual adjustment is required by pressing a button and pulling the lines out.
The ET-70 C has a power consumption of 700 Watts, while the ET-100 C has 1000 Watts. Both models operate on a nominal voltage of 230 V and a mains frequency of 50 Hz. The rated current is 3.5 A for the ET-70 C and 5 A for the ET-100 C, with a mains fuse of 16 A for both. The power cable length is 40 cm. An extension cable (not included) of type DIN 57282/H07 RN-F, with a maximum length of 30 meters and 3x1.5 mm² cross-section, is recommended. Both trimmers are radio interference suppressed according to EMC guidelines EWG 89/336 and 92/31, and feature Class II double protective insulation. The maximum spindle speed with the 2-line trimmer head is 7,500 rpm for both models.
Sound power levels (LWA av per EN 786 Appendix E) are 94.3 dB(A) for the ET-70 C and 94 dB(A) for the ET-100 C. Sound pressure levels (LpA av at workplace EN 786 Appendix E) are 81.9 dB(A) for the ET-70 C and 85.3 dB(A) for the ET-100 C. Vibration acceleration (ah,w per EN 786 Appendix D) for the front handle is 3.8 m/s² (ET-70 C) and 1.7 m/s² (ET-100 C), and for the rear handle, 4.1 m/s² (ET-70 C) and 2.2 m/s² (ET-100 C). The dimensions (length / width / height) for both models are 1530 / 480 / 360 mm. The weight (with guard and cutting tool) is 5.0 kg for the ET-70 C and 5.1 kg for the ET-100 C.
Before initial operation, users must thoroughly read the instruction manual and strictly follow all safety precautions. The trimmer should only be operated by individuals experienced with electric trimmers. Children and minors under 18 years of age are generally prohibited from using the trimmer, with an exception for those over 16 undergoing training under expert supervision. Operators must be in good physical condition, work calmly and carefully, and not be under the influence of alcohol, drugs, or medication.
Personal protective equipment is mandatory, including tight-fitting clothing, a hairnet for long hair, a helmet with a faceplate, protective eyewear (in addition to the faceplate), hearing protection (ear protectors or earplugs), sturdy leather work gloves, and sturdy footwear with non-slip soles. The work area must be clear of children, other persons, and animals within a 15-meter radius. The power cable should always be routed behind the operator, ensuring it is not pinched or in contact with sharp objects. The trimmer should only be started after complete assembly and inspection, and never without the guard installed. The cutting tool must be at full operating speed before beginning to cut. When trimming, the trimmer should be swung in a semicircle from right to left, similar to using a sickle. Metal cutting tools and saw blades are strictly prohibited.
Regular maintenance is crucial for the trimmer's longevity and safe operation. This includes cleaning any grass accumulated between the trimmer head and tool holder. The motor housing should never be sprayed with water; instead, it should be cleaned with a damp cloth and thoroughly dried. Strong cleaning agents that could damage the plastic housing should be avoided. The cooling air slots on the motor housing must be kept free of dirt. Special care should be taken when cleaning the guard near the line knife due to injury hazard, using a wooden scraper or soft brush. Before changing the cutting tool, cleaning the trimmer, or the cutting tool itself, the motor must be switched off, and the power plug disconnected. All screws and nuts should be regularly checked for tightness. The trimmer should not be maintained or stored near open flames. Only original DOLMAR spare parts and accessories should be used to ensure safety and maintain warranty validity. Any maintenance or repair work not described in the manual must be performed by a DOLMAR service center.
The manual includes a troubleshooting guide for common issues such as the motor not working (checking power supply, cable, plug, ON/OFF switch, motor defects), poor performance (worn carbon brushes), trimmer head not rotating (blocked by grass/debris, flexible shaft defect), and poor trimming results or inability to adjust the line (line too short, used up, improperly wound, or dirty).
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