3. Safety precautions and warnings
3.1. Operating conditions
You may only use the crane under the following conditions:
• In the open air, or in spaces with sufficient ventilation.
• With a mean wind velocity less than 13.3 m/sec (approx. 29.7 mph).
DANGER
• If you use the crane in a confined space you could suffocate from the exhaust
gases from the vehicle.
•
Never
use the crane at temperatures below -40° C (-40 °F), as the steel's
properties deteriorate below this temperature.
WARNING
• If the temperature is below 0 °C (32 °F) we
recommend you to wait a few minutes
before you operate the levers
• When starting in cold weather, the wear on
the hydraulic system is greater than at
normal working temperatures.
To minimise wear, the crane should be started as follows:
• Engage the power take-off at low rpm.
• Allow the system to idle for a few minutes.
• Fixed pump:
Operate the stabiliser leg up for one minute in order to warm up the oil.
• Variable pump:
Operate stabiliser legs up and down for one minute, in order to warm up the oil.
Safety precautions and warnings
Jonsered 1188S CE
21
