Wacker Neuson EH 25 Operator's Manual - page 23

6 Structure and function

23

6

Structure and function

6.1

Application

Use the machine only as intended, see chapter Safety, Proper use.

6.2

Functional description

Principle

The machine is a demolition hammer with a pneumatic percussion system.

It is driven by an electric motor.

The rotary movement of the drive engine is converted into a stroke movement 

via a transmission and a crank gear.

The piston is moved forwards and backwards by the crank gear, this compresses 

the air (forward movement) or generates a partial vacuum (backward 

movement). Due to change in pressure the percussion piston is moved forward 

and backwards (air cushion percussion system) and hits the tool.