Effer DMU 2000, Руководство по технической помощи, Страница: 13 / 72

Electronic device DMU2000 - DMU3000 - DMU3000 PLUS Electronic device DMU2000 - DMU3000 - DMU3000 PLUS
THE POWER OF PERFORMANCE
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1 Serial number inside the DMU
The serial number inserted inside the DMU should be the same as the crane one. If the DMU fitted to
the crane is to be replaced, a new one taken from stock shall be fitted. This new device will therefore
not include the setting files, then you will have to enter not only these files which are provided by Sol.
Ge S.p.A. for the specific crane, but also the crane serial number in the box provided.
2 Pressure 100% basic crane 1st boom cylinder
The first boom cylinder can have two different maximum pressures permitted for the use as basic crane
and for the use with additional jib: the setting value shown on the first line concerns the operation of a
basic crane, i.e. a crane equipped with additional jib or that is working without the jib fitted. When this
pressure value inside the first boom cylinder is achieved, the load limiting device comes into operation.
If a performance downgrading of the basic crane is necessary, due to a problem of stability, (value to be
decreased according to practical tests) the load limiting device should be operated first, by decreasing
the value on this line.
3 Pressure 100% basic crane 1st boom cylinder with Jib fitted
The setting value shown on the second line concerns the operation of the load limiting device when
the max. allowed pressure value inside the first boom cylinder is achieved, operating with a crane, that
is working with the additional jib fitted. If a performance downgrading of the basic crane is necessary,
following a problem of stability, (value to be decreased according to practical tests) the load limiting
device should be operated first, by decreasing the value on this line.
Reductions of more than 50% of the original values are not recommended: should this necessity arise
please contact Sol.Ge S.p.A. technical office.
NOTE:
If a performance downgrading is required in the area of maximum performance for a problem
of stability, you can decrease the maximum pressure values inside the DMU, but it is not necessary to
reduce also the working pressure in the hydraulic circuit of the crane. When the operating lockout re-
sulting from DMU setting comes into operation, the boom rise movements are still possible, but these
movements are automatically interrupted when performance is increased approximately by 10% com-
pared to the set value.
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