Wacker Neuson EHB 11 BL Operator's Manual
Also see for EHB 11 BL: Operator's manualOperator's manual
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Contents
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Description EHB 1120 Operator’s manual5 Description5.1 ApplicationA wide selection of easily interchangeable tools is available for drilling holes from12 to 125 mm suitable for breaking, chiseling, digging, puddling, hammering,ramming and deburring. The machine is suited for processing natural as well assynthetic stone and asphalt and any type of masonry and concrete.5.2 FunctionalityPrincipleThe machine is a demolition hammer with a pneumatic percussion system aswell as an additional drilling function.It is driven by a maintenance-free three-phase AC motor.A frequency converter converts the generated DC voltage to required three-phase AC current."Chiseling" operating modeThe rotary movement of the three-phase AC motor is converted into a strokemovement via a transmission and a crank gear while in "Chiseling" operatingmode.The piston is moved forwards and backwards by the crank gear, this compressesthe air (forward movement) or generates a partial vacuum (backward move-ment). Due to change in pressure the percussion piston is moved forward andbackwards (air cushion percussion system) and hits the tool.While in "Chiseling" operating mode, the drill drive is uncoupled via the safetyclutch and the tool holder bushing is fixed in place to prevent turning in the toolholder."Hammer drilling" operating modeWhile in "Hammer drilling" operating mode, the rotational movement of the motoris transferred to the drive shaft of the drill drive via a clutch. The drive shaft usesgear wheels to turn the tool holder bushing in the tool holder. |
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