Donati DRH 1 Series, Инструкция по эксплуатации

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MAN16MG05
instructions for use series drh
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7. Take off the limit switch cover -27- removing the respective screws -28- , taking care not to disconnect or change
the setting of the limit switches (fig. 192).
8. Remove from the semi-rings -15- (on the opposite side to where the wire rope comes out) and -16- (on the side where
the wire rope comes out) the bronze runners/reaction arms -17- by unscrewing the relative screws - 18- (fig. 187).
9. Take off the wire-clamping spring -19- using the special spring-tightening device -T- (fig. 180) and pliers to
remove the clip -20- (fig. 188).
10. Unscrew the nuts
-21-
, take off the screws
-22-
and relative springs
-23-
from the two semi-rings
-15-
and
-16-
(fig. 189).
11. Remove the semi-ring on the opposite side to where the wire rope comes out -15- (fig. 193).
12. Rotate the semi-ring on the side where the rope comes out -16- until the wire rope comes out upwards (fig. 194).
13. Loosen the screws -25- of the clamps -26- , take out the wire rope and release the semi-ring -16- (fig. 195).
The following instructions are valid only for DRH electric wire rope hoists in 4-rope fall execution with
DST/R trolley and 6 and 8-rope fall.
fig. 192 fig. 193
fig. 194 fig. 195
27 28
15
16
16
25
26
114 instructions for use series drh
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MAN16MG05
115
1. Clean and degrease thoroughly with suitable solvents (oil, trichlorethylene, etc.) the semi-rings -15- and -16- and
the drum, drying them with a cloth so they can be examined carefully.
2. Bring the semi-rings level with the drum, matching up the respective threadings and check that there is no excessive
clearance. Where necessary (pointed crests, sharp or heavy wear and tear) assess the need for replacing the semirings
and possibly the drum.
3. Operating at a height, lift by hand up to the working level, both the pendant push-button panel and the new
wire rope, using a cord tied safely and firmly to the wire rope end.
4. Insert the new wire rope in the slot of the semi-ring -16- and block the end of the wire rope with three wire
rope clamps -26- tightening the respective screws completely -25- (fig. 197).
5. Press the “ascent” button of the push-button panel, and using protective gloves, keep the wire rope constantly
taut and well adherent to the grooves of the drum letting the wire rope wind around for at least 10 lengths
(fig. 198).
6. Without loosening the tension in the wire rope, put a weight onto the wire rope using a clamp,
downstream from the semi-ring -16- and taking care not to deform the wire rope. The weight, replacing
the manual tension, will prevent the unrolling of the wire rope from the drum (fig. 199).
When the old wire rope must be replaced with a new one:
• NEVER uSE wire ropes already used or for which the characteristics are not known, or wire ropes
not fitted with a certificate or declaration from the manufacturer.
• use SOLELY wire ropes which have the same characteristics (typology, resistance and length) of
the old wire rope. (
See table fig. 133 on page 88)
• unwind the roll of the new wire rope without kinks or bends (fig. 196)
For the mounting of the new wire rope, proceed as follows:
fig. 197
fig. 198 fig. 199
16
16
25
26
16
fig. 196
CORRECT UNWINDING
CORRECT UNWINDING
KMAN16MG05