Background

The Makita DPC6401 is a mechanical tool equipped with a displacement of 3.9 cu in (64 cm3), a bore of 1.85 in (47 mm), and a stroke of 1.46 in (37 mm). It has a maximum power of 4.3 hp (3.2 kW) and a maximum torque of 4.0 Nm. The machine functions at an idling speed of 2,500 rpm, with a clutch engagement speed of 3,800 rpm. It has an engine speed limitation of 9,350 rpm and a maximum spindle speed of 4,300 rpm. The DPC6401 operates using a diaphragm carburetor (TILLOTSON HS-273 A) and an electronic ignition system with speed limitation.

The product is built with a 5-stage air-filter system and offers two options for mounting the cutting attachment: centrally or on the side. It's designed to consume fuel at a maximum load of 1.65 kg/h, with a specific consumption at max. load of 500 g/kWh. The fuel tank has a capacity of 37 fl oz (1.1 l). The DPC6401 may come with synthetic-resin and diamond cutting discs, and a trolley. The device requires regular maintenance which includes cleaning the exterior, inspecting the cutting disc for damage and wear, checking the V-belt tension, and cleaning the air filter among other tasks. If the cutting disc does not start turning, it could be due to a damaged clutch. Furthermore, if there's insufficient power, it could be due to a dirty air filter or incorrect carburetor adjustment, among other issues.

Technical Specifications

  • Displacement: 3.9 cu in (64 cm3)
  • Bore: 1.85 in (47 mm)
  • Stroke: 1.46 in (37 mm)
  • Max. power: 4.3 hp (3.2 kW)
  • Max. torque: 4.0 Nm
  • Idling speed: 2,500 rpm
  • Clutch engagement speed: 3,800 rpm
  • Engine speed limitation: 9,350 rpm
  • Max. spindle speed: 4,300 rpm
  • Sound pressure level at the operators ear: 97 dB(A)
  • Sound pressure level at the bystander’s position (50 ft): 84 dB(A)
  • Vibration acceleration ah,w (Tubular handle): 6 m/s2 (idle), 5 m/s2 (rated spindle speed)
  • Vibration acceleration ah,w (Rear handle): 8 m/s2 (idle), 6 m/s2 (rated spindle speed)
  • Carburetor: TILLOTSON HS-273 A (diaphragm carburetor)
  • Ignition system: electronic (with speed limitation)
  • Spark plug: NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
  • Electrode gap: .020 in (0,5 mm)
  • Fuel consumption at max. load: 1.65 kg/h
  • Specific consumption at max. load: 500 g/kWh
  • Fuel tank capacity: 37 fl oz (1.1 l)