Safety and operating instructions
© Construction Tools GmbH | 3390 5201 01 | 2023-05-15
Original Instructions
15
3 Overview
3.1 Equipment description
The illustration gives an overview of the main parts and
components of the hydraulic attachment. Actual details
may differ.
A. The hydraulic breaker is connected to the carrier by
the adapter plate. The adapter plate is not included
in the scope of supply of the hydraulic breaker.
B. StartSelect valve (only on MB1200 E, MB1500 E,
MB1650 E)
C. Tank line »T«
D. Non-return valve of percussion compartment venti-
lation exact location may differ depending on
breaker type
E. Pressure line »P«
F. The breaker box protects the percussion unit.
G. Working tool aperture protective cap
H. The working tool can be replaced as required. The
working tool is not included in the scope of supply of
the hydraulic breaker.
I. The working tool is retained in the lower breaker
part.
J. The percussion piston is guided in the cylinder.
K. The cylinder cover houses the nitrogen gas (N
2
)
filled piston accumulator and the control mechanism.
3.2 Function
The operation of a hydraulic breaker is described in a
greatly simplified version below:
The pressure line »P« supplies oil at the operating pres-
sure of the carrier to the hydraulic breaker. The tank line
»T« returns the oil to the tank of the carrier.
The percussion piston moves up and down in the cylin-
der. When the percussion piston is in its lower position, it
impacts the working tool. The percussion energy is
transferred to the material to be broken via the working
tool.
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