User Guide
Rotary drum cutter_user guide_1.1_EN_12-08-21
5
Safety Notes:
ALWAYS carry out a site survey and risk assessment BEFORE starting work.
Block off the work area from bystanders, livestock, etc. Flying debris can cause severe injury or death:
the Rotary Drum Cutter is capable of producing large amounts of flying debris in all directions.
Check there are no bystanders within the skewing range of the excavator or as defined by the risk
assessment.
It is recommended the excavator door is in the closed position when operating to prevent flying debris
from entering the cab.
Pre-use Checks
When all installation stages are completed, check the following before operating the Rotary Drum Cutter.
While moving the excavator’s bucket cylinder slowly in and out in the direction of ‘crowd’ and ‘dump', check:
For any interference or obstruction between the Rotary Drum Cutter and excavator
Whether the length of the connecting hoses are too short or too long
For any twisting, excessive bending or squeezing of the connecting hoses
The fixing status of the mounting pins
While lifting the Rotary Drum Cutter above the ground (no-loading condition) Check:
For correct direction rotation of the drums: if the direction of rotation is not correct, switch over the hydraulic
pressure and the return line in the control circuit of the excavator
Whether the drum rotates normally without delay when the operating switch is pressed ON, and that it stops
when OFF
For any oil leaks from hoses, fittings, hydraulic motor or motor control valve
For loosening of bolts or nuts
If any abnormal vibration or noise occurs while the Rotary Drum Cutter is running
Dismounting/disconnecting the Rotary Drum Cutter is the reverse of that previously stated, however see
the safety note below:
Safety Note:
Do not disconnect hydraulic lines under pressure as hydraulic oil may be very hot: always
follow these four steps:
1. Shut down the hydraulic system
2. Secure the hydraulic supply against re-start
3. Depressurise the hydraulic lines
4.Check for absence of pressure
Disconnecting the Hydraulic Lines
Operational Guidelines
The Rotary Drum Cutter is suitable for attachment to all conventional hydraulic excavators. However, it must be
ensured that the hydraulic excavator provides the required power and that the stability of the excavator is not
impaired by the attachment of the Rotary Drum Cutter. The Rotary Drum Cutter is mounted to the bucket arm of
the excavator via the quick coupler equipment. Since Rotary Drum Cutters are very powerful, they can be used for
a large variety of applications. They cut through almost all types of rock, pavement (asphalt), walls (masonry walls
made of bricks, concrete, cement etc). Since the Rotary Drum Cutter operates at full system pressure, the
secondary pressure must not be set lower than the system pressure: this prevents overheating of the hydraulic
system.
