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- At a difference in height of over 1 1/4" and less than 2 3/8", lowering is interrupted. A lifting
fork may be blocked; the cause of the failure must then be traced first. Lifting is still possible, the adjustment valve
in the hydraulic system will open and remain open until the difference has been cancelled out.
- At a difference in height of over 2 3/8" mm, the control voltage is switched off, thus blocking all
movements. The cause of the failure can then be traced.
In addition, the control system has been designed so that:
- Each lifting column can be operated separately
- Any pair of axles can be handled separately
Also see section 6, Operation
3.1
STRUCTURE OF THE COLUMN LIFT
Each lifting column consists of (see figure 3):
- a column and a lifting cylinder
- a hydraulic unit
- a control box
- battery power system
- a pallet jack lifting mechanism
- a mechanical safety lock
- two fixed or adjustable forks (option)
- two fixed or retractable wheels (option)
• Hydraulic unit
The hydraulic system consists of an electrically driven pump, flow control valves, control valves and a oil
reservoir.
• Column and lifting cylinder
The column and lifting cylinder form the major part of the mobile column lift. In the U-section of the column
are a guide block and rollers. The rollers enable the guide block to move along the full length of the column.
The hydraulic lifting cylinder provides the lifting capacity.
• Control box
The control box has all the functions controlling the use of the lifting column A battery condition meter is
integrated in the control panel.
The control box components and functions have been specified in sections 5 and 6.
•
Battery power system
The battery system consists of two batteries, main switch to power the control box and hydraulic unit, a heavy duty
fuse, a battery charger and a battery condition meter.
• Pallet jack mechanism
The two-wheel pallet jack mechanism serves to move the lifting column. The two wheels protect the lifting
column from being turned over at the back when it is moved. The pallet jack mechanism lifts the column off the
floor so that the column can be easily moved.
The pallet jack mechanism is operated by means of the handle bar and the lever inside the bar. (see fig. 7.7)
The lever can be set in three positions:
1. When the lever is set in the upper position, the pallet jack mechanism is lowered.
2. The middle setting is the neutral position; the column can be moved without the system being lifted or lowered.
3. When the lever is in the lower position, the pallet jack mechanism can be raised by moving the handle bar up
and down.
• Retractable wheels model ST 1082-R/BAT only.
When the pallet jack mechanism will be operated the retractable wheels are in this system also engaged by
lifting/lowering the front wheels of the column.
Summary of Contents for ST 1082-F/BAT
Page 1: ...Mobile Column Lifts ST 1082 F BAT ST 1082 R BAT Installation operation service 32738980 A ...
Page 2: ......
Page 14: ...10 ...
Page 31: ...27 MICROPROCESSOR BOARD Fig 8 1 Location of fault indication LED s ...
Page 37: ...33 FIG A ...
Page 39: ...35 FIG B Item 6 locked with loctite 542 sealant ...
Page 42: ...38 FIG E CONTROL BOX ...
Page 44: ...40 FIG F SCHEMATIC DIAGRAM ...
Page 51: ......