![background image](http://html.mh-extra.com/html/stertil-koni/st-1055/st-1055_installation-operation-and-service-manual_1375426014.webp)
9
3.
DESCRIPTION OF THE LIFTING SYSYEM
For the hydraulic system diagram see figure K.
The
mobile column lift
is a movable electrically driven hydraulic column lift used for lifting heavy vehicles. At
least two lifting columns are required for lifting a vehicle. The number of lifting columns required depends on the
weight of the vehicle and the number of axles.
The main components of the mobile column lift are shown below:
Usually, a set of four lifting columns are used consisting of one primary column and three secondary columns.
The power supply is connected to the primary column. The primary column and secondary columns are
interconnected so as to form a ring circuit. All power supplies and the control signals are through the
connecting cables.
The primary column can be set to function as a secondary column when more than one primary column is used.
The control system on the lifting columns ensures that the columns are raised or lowered synchronically.
Each lifting column is equipped with a position sensor which transmits the height positions to the control system.
The control system controls and protects the lifting system during lifting or lowering as follows:
- At a difference in height between the lifting columns of over 5/8" mm and less than 1 1/4"mm, an
extra adjustment valve in the hydraulic system opens and remains open until the difference has been cancelled out.
Fig. 3.1
ST 1072
Each lifting column has a lifting
capacity of 16,000 lbs.
Consequently, four columns
have a total lifting capacity of
64,000 lbs. The total lifting
capacity can be increased by
adding lifting columns.
ST 1055
Each lifting column has a lifting
capacity of 10,000 lbs.
Consequently, four columns
have a total lifting capacity of
40,000 lbs. The total lifting
capacity can be increased by
adding lifting columns.
ST 1060
Each lifting column has a lifting
capacity of 12,000 lbs.
Consequently, four columns
have a total lifting capacity of
48,000 lbs. The total lifting
capacity can be increased by
adding lifting columns.
Содержание ST 1055
Страница 1: ...Mobile Column Lifts ST 1055 ST 1060 ST 1072 Installation operation service 325 58 990A ...
Страница 2: ......
Страница 5: ......
Страница 34: ...29 FIG A ...
Страница 36: ...31 FIG B ...
Страница 40: ...35 FIG F ELECTRICAL DIAGRAM CONTROLBOX PRIMARY ...
Страница 42: ...37 FIG H ELECTRICAL DIAGRAM SECONDARY COLUMN ...
Страница 47: ...42 FIG M DIMENSIONAL DRAWING ST 1072 ST 1055 ST 1060 ST 1072 V widened model 27 49 ...
Страница 49: ......