Handling The Units As Far As The Installation Site - ABB UniSec Manual

Figure 14. Bolt inside the unit (right side)
3.3 Handling the units as far as the instal-
lation site
3.3.1 General warnings and cautions
DANGER
Only carry out loading operations when it
has been ensured that all precautionary
measures to protect personnel and materials
have been taken.
CAUTION
The switchgear units should usually be
handled in an upright position. Take the
high centre of gravity into account. Tilting or
overturning must be avoided. If necessary,
single units can be carried horizontally, for
example, because of a low doorway. In such
cases, the unit must be supported over a
wide area.
3.3.2 Instructions
Transport units
The transport units consist of individual units or small groups
of units. The lifting hooks are suitable for all UniSec units
(375 mm, 500 mm, 600 mm and 750 mm).
Handling instructions
The units must be handled in the upright position using a
manual forklift or a forklift truck or, exceptionally, using special
rolling tubes (at least four).
CAUTION
The packages should be placed on a level
surface.
Lifting instructions
Use the following tools for lifting:
• Crane
• Fork-lift truck and/or
• Manual trolley jack.
8
If a crane is available, lifting can be done by using the lifting
hooks which are delivered separately. The lifting procedure,
including how to install the lifting hooks, is illustrated on the
right.
NOTE
It is also possible to move units on a flat floor
to the installation site by using rolling tubes.
The rolling tube dimensions should be about
1 m in length and 20-25 mm in diameter.
3.3.3 Lifting procedure
Parts
Figure 15. Lifting hook
Figure 16. Roof frame on the top of the unit
Operations to be carried out before lifting
a) Install the lifting hooks on the roof frame.
Figure 17. Roof frame + lifting hooks
Figure 18. Lifting hooks installed on roof frame
b) Repeat the operation for all four corners of the roof frame.