Preparing for crane operation 3.2-1
3.2. Preparing for crane operation
3.2-1 Cold start in low outside temperatures
In outside temperatures below freezing:
Appearances, operating stations (spaces occupied) and all mobil crane construction units are to be
cleaned if necessary before beginning of the work from ice and snow to.
0
40
30
20
10
-10
-20
-30
• Switch on the pump unit at lowest motor speed.
• Let the oil pump around without pressure for a few minutes so that it warms
up a little.
• You can accelerate warming up of the oil by moving a hydraulic cylinder to
the end stop.
At temperatures below 0° C make sure that your crane is being
operated with a hydraulic fluid which is suitable for such
temperatures.
The crane may only be operated by one person (operator) and from a control stand.
3.2-2 Supporting vehicle properly
• The crane must only be operated in properly supported condition.
• Park the vehicle properly and apply the handbrake.
Some crane models can be optionally equipped with one or two slewing gears. If they have only one
slewing gear the vehicle’s inclination during crane operation must not be more than 3,5°. If this value
is exceeded und the crane lifts heavier loads this can affect the crane function „slewing”. The crane
will not slew back.
Spirit level
Every crane control stand has a bubble where you can read the inclination of the lorry.
With the bubble in the middle of the gauge the crane is in horizontal
position.
If the bubble is between the two circles the crane’s inclination is
between 0° and 5°.
After the crane has been mounted on the lorry the mounting company
has to adjust the spirit level.
To Next Page
Loading...