
QAY220 All Terrain Crane Operation Manual
9-5
No.
Illustrations
20
21
22
23
24
Cautions
Remarks
P a y a t t e n t i o n t o t h e h y d r a u l i c o i l
temperature, and stop operation when
the temperature rises above 80
℃
. Note
that the amount of oil in the cylinders,
tanks, etc. changes when the temperature
changes. Therefore, when the boom is
extended with the hydraulic oil at high
temperatures, the boom retracts as the
oil temperature drops. Compensate the
boom retraction by extending the boom
further.
Take note of weather report
1)
Where the wind velocity is over
14.1 m/s do not operate the crane.
2)
If it is very windy or thundering,
stop operating the crane and stow the boom.
Avoid side loading or dragging loads
on the ground.
Set up the crane level on a firm and
even supporting surface (Where the
ground is suspected to be soft, place
strong wood blocks on the ground and
set up the crane on them.)
After setting up the crane, check that all the
tires are clear of the ground and that the crane
is level by monitoring the electronic level
gauge.
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General cautions in operation
Chapter 9
Summary of Contents for QAY220
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