Fayat Group Dynapac CA25 Instruction Manual page 21

Machine description
Steering system
The steering system is a load-sensing hydrostatic system.
The control valve on the steering column distributes the
flow to the steering cylinders at the articulated joint. The
steering angle is proportional to the amount the steering
wheel is turned.
Vibration system
The vibration system is a hydrostatic system in which a
hydraulic motor drives the eccentric shaft, which
generates the drum's vibrations.
High amplitude or low amplitude are determined by the
hydraulic motor's direction of rotation. Optional systems for
variable amplitude are available.
Cab
The cab has a heating and ventilation system, with
defrosters for all windows. Air conditioning is available as
an accessory.
Emergency exit
The cab has two emergency exits: the door and the rear
cab window, which can be broken with the emergency
hammer located in the cab.
FOPS and ROPS
FOPS is the abbreviation for "Falling Object Protective
Structure" (roof protection) and ROPS is the abbreviation
for "Roll Over Protective Structure".
The cab is approved as a protective cab in accordance
with the FOPS and ROPS standards.
If any part of the cab's or the FOPS/ROPS structure's
protective construction displays plastic deformation or
cracks, the cab or the FOPS/ROPS structure must be
replaced immediately.
Never perform unauthorized modifications on the cab or
FOPS/ROPS structure without first having discussed the
modification with Dynapac's production unit. Dynapac
determines whether the modification could result in the
approval according to the FOPS/ROPS standards
becoming invalid.
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