Starting Crane Operation; Starting Operations; Set The Stabiliser System; Stabiliser System And Ground Conditions - Jonsered 1250RZ Operator's Manual

5. Starting crane operation

5.1. Starting operations

Placing the vehicle
• Place the vehicle on a flat surface. The maximum
permissible slope for your crane is 5°. To determine the
incline of the truck check the spirit level, on the crane.
When the bubble in the middle of the gauge, the crane is
in horizontal position. When the bubble is between the
two circles, the crane's inclination is between 0 ° and 5 °.
If the slope exceed 5° unintentional crane movements
can occur.
Engage the PTO
• Engage the PTO (Power Take Off).
• Bring the vehicle's engine to the correct rpm.
NOTE
• Rpm too high: the oil in the hydraulic system might overheat. Rpm too low:
during crane operation, the vehicle's engine could stall.
• The maximum rpm may depend upon a governor on your PTO combination.
Start the system

5.2. Set the stabiliser system

To ensure the maximum stability of the vehicle, all the stabiliser extensions and legs must be fully
extended and set to the ground without lifting the wheels from the ground.The display will give you
information about the stability of the vehicle.

5.2.1. Stabiliser system and ground conditions

Always:
• Make sure that the ground can support the load that the
stabiliser leg imposes on the ground. (*)
• Make sure that the ground is not undermined.
• Use the extra support plates that are large and firm
enough for your crane model.
Starting crane operation
Jonsered 1250RZ -1500RZ safety+R CE 37