4. The R
4.1. System R
R is a safety system and it:
• Monitors the crane's operation and prevents dangerous
actions.
• Makes operation easier.
• Makes troubleshooting easier.
The system also provides a large number of functions.
Additional features:
• Capacity indicator
• Warnings
• Slope control
• Over load protection (OLP)
• Overturn protection (OTP)
• Stabiliser deployment monitoring
• Automatic dumping of oil
• Transport warning
NOTE
Certain functions are standard, others are options.
4.2. How the R system works
The system works as follows:
On the crane there are different sensors and indicators that send signals about the crane’s load,
position and movements to an electronical control unit (ECU) . The ECU then decides how the
crane can be operated and stops/reduces prohibited movements/speeds according to the following
situations:
Overload situation (lifting)
• When the crane approached the prohibited overload, a warning is given.
• When the crane reaches the prohibited overload, all movements increasing load moment are
stopped.
• When the maximum allowed tilting angle is exceeded, all movements increasing the load
moment are stopped.
• If the stabiliser system is not fully
deployed
, the crane capacity is reduced.
Overturning situation (for cranes intended for digging/pressing down)
• When max allowed tilting angle is exceeded, all movements increasing the tilting angle are
stopped..
• If the stabilisers system is not fully
deployed
, all crane movements are stopped.
The R
32
Jonsered 1250RZ -1500RZ R CE
