Donati DRH 1 Series, Инструкция по эксплуатации

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MAN16MG05
instructions for use series drh
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5. In the case of 4-fall hoists, pass the wire rope through the transmission pulley positioned on the hoist and, in the
case of 6 or 8-fall hoists, pass the wire rope through the transmission pulley positioned on the trolley. When the
transmission pulley is positioned at a eight, tie the rope end with a cord securely and firmly, and then, from the
top of the scaffold/platform positioned at a height the operator lifts the rope end using the cord (fig. 84).
6. Introduce the rope end in the anchorage -4- and having inserted the wedge -5- let the end of the wire rope come
out from the lower edge of the anchorage checking that the end comes out 100 mm from the anchorage (fig. 85).
7. Insert the safety clamp -6- on the free length of 100 mm positioning it 50 mm from the edge of the anchorage
and tighten the nuts completely (fig. 86).
8. With the pivot -3- connect the anchorage -4- to the lever -L- fixing the lever, using the pin -2- and the related snap
ring, to the anchorage cross head -1- (fig. 87).
In the 4-fall hoists installed at a height lift the anchorage as in point 4 of the sequence described above.
1
L
2
3
4
6
6
5
4
100 mm
fig. 86 fig. 87
fig. 85 fig. 84
67 instructions for use series drh
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MAN16MG05
4.5.3 Adjustments and trial runs
Adjusting the lifting limit switch devices:
The DRH electric wire rope hoists and, when included, the trolleys are fitted with sensitive electrical micro -
limit switches which delimit the run (fig. 88):
• of the hoist in ascent and descent.
• of the trolley along the sliding girder.
• The positions of max ascent and of max descent are marked by a red demarcation striker plate, which
MuST NEVER be passed (fig. 89).
• When the hoist is fitted with a reduced dimension DST/R trolley or double girder DRT trolley, the ascent
limit switch MuST be adjusted to prevent the risk of collision of the load and/or of the hook block or
parts of the hoist with the structure of the girder/s (fig. 90).
• In any configuration the heights of maximum approach of the hook block in ascent, indicated in point
2.2.9, MuST NOT be reduced.
• The descent limit switch MuST be regulated according to the effective run that the hook can perform.
The adjusting in descent is also necessary to prevent the hook resting on the floor causing the
wobbling of the wire ropes (fig. 91).
drhcarrbitr88
fig. 90 fig. 91
fig. 89 fig. 88
KMAN16MG05