SECTION 7
HAMMER OPERATION WITH FIXED IMPACT
FREQUENCY
Place tip of chisel then switch on hammer with push-
button (1).
The hammer works with the maximum preset
hydraulic power and is on as long as the button is
depressed.
HAMMER OPERATION WITH VARIABLE IMPACT
FREQUENCY
Place tip of chisel then depress pedal (2) back-
wards. The impact frequency increases with the
press on the pedal.
SWITCHING OFF THE HYDRAULIC HAMMER
Release push-button (3) or pedal (2).
Depress symbol face of switch (1). The illumination
behind the switch is off.
Pedal (2) now controls the "Boom adjusting cylin-
der".
7-4
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