JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
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DONATI SOLLEVAMENTI S.r.l. - Via Roma, 55 - 21020 Daverio (VA) - Tel. 0332 942611 - Fax. 0332 948597<br />
4.3.3 Assembly of the column – For CBB column-mounted cranes<br />
• The fixing of the column to the ground can be done in the following ways:<br />
• using a foundation frame with log bolts sunk into a plinth made of reinforced<br />
concrete<br />
• using bolts and screw anchors or dowelling.<br />
• The fixing of the column using bolts and screw anchors or dowelling<br />
requires a scrupulous check of suitability in relation to the type of support<br />
flooring.<br />
• The technical data, so that the user can choose the right size for the the<br />
foundation plinth, are shown in the table in paragraph 2.2.7 (“Fixing<br />
systems”p.12).The plinth size must be in relation to the real consistency of<br />
the ground and the specific maximum pressure that it can bear.<br />
• The suitability checks of the foundation are the responsibility of the user<br />
and must be carried out by technical experts who judge the feasibility and<br />
take responsibility for this.<br />
Positioning of the foundation frame in the plinth:<br />
1. Screw tight the low nuts 2 on the log bolts 1, leaving a threaded part showing which corresponds to the<br />
level ST (fig.17) (for the protusion ST, see “Fixing systems” on page 12). Do the same operation on all 8<br />
(eight) log bolts.<br />
2. Insert all the logbolts 1 in the holes on the foundation frame 4, so that the plate of the frame is resting<br />
on the nuts and then tighten with the tall nuts 5, interposing the washers 3.<br />
3. Sink the frame prepared in this way in the plinth casting, taking care that the upper plate remains on the<br />
same level as the floor (fig.18) Protect the threadings of the logbolts to avoid damage.<br />
4. When needed, insert a tube into the plinth through which the electrical cable which powers the crane<br />
can be passed (fig.19).<br />
5. Level the foundation frame using if necessary a bubble and proceed to the filling and flint-glazing of the<br />
plinth (fig.20).<br />
6. Wait the necessary time before assembling the column so that the plinth can stiffen.<br />
fig.17<br />
fig.19<br />
24<br />
fig.18<br />
fig.20