MAN16MG05
instructions
for
use
series
drh
1/2/3/4 -
dst
/
n
/
s
-
dst
/
r
-
drt
60
1. Avoid dangerous oscillations when handling the trolley/hoist group, maintaining the lower line of the wheels
at a distance of approximately 1 m from the ground, and bring it to the area designated for its lifting onto the
suspended girders.
2. Using a mobile scaffolding or raisable platform, one operator reaches the installation height, while the mobile
crane operator lifts the trolley/hoist group slowly, avoiding oscillations, until reaching the height of the trolley’s
sliding girders (fig. 65).
3. The operator positioned on the scaffolding or raised platform provides instructions for the mobile crane operator, for:
•
slowly lifting the trolley/hoist group, setting it level so that the lower line of the wheels exceeds the distance
of the trolley’s sliding rails (fig. 66)
• advancing with the movable crane until the wheels on the trolley/hoist group are vertical with their res-
pective rails (fig. 67)
• slowly lowering and positioning the trolley/hoist group, setting it level onto the girders it will operate on,
checking to make certain the wheels are correctly placed onto the rails on the girders, and establishing a
clearance of at least 2 mm on each side between their edges and the rail (fig. 68).
4. Operating from the raised scaffolding/platform, unhook the harnesses from the trolley eyebolts.
5. Operating from the raised scaffolding/platform, at the ends of the girders, set: (fig. 63).
• the trolley’s electrical limit switches so as to determine the desired travel
• the mechanical endstrokes, by regulating the rubber buffers, designed to safely stop the trolley’s run should
the electrical limit switches fail to operate.
6. Assemble the anti-derailing devices
-1-
using the nuts
-2-
to regulate them in relation to the dimensions of the
wing on the girders (fig. 64).
The use of a MOVABLE CRANE is recommended in installing the DRT double girder trolley
onto suspended girders. For assembly operations, proceed as follows:
NOTE: This operation must be conducted jointly with at least 2 operators whose
qualifications at least match the requirements requested.
drhcarrbitr65
fig. 65
fig. 66
fig. 67
drhcarrbitr61
2 mm
2 mm
fig. 68
61
instructions
for
use
series
drh
1/2/3/4 -
dst
/
n
/
s
-
dst
/
r
-
drt
MAN16MG05
4.4.5 Collegamenti elettrici
1. Check the suitability and the correct functioning of the electrical system:
• power line, which must be fitted with a padlockable disconnecting switch
• outlet and/or related towing arm of power lines in festooned cable
•
earthing
system
and if not part of the supply:
• control panel external to the hoist
• push-button control panel
2. In the case of the DRH wire rope hoist fitted with trolley, arrange the installing of the towing arm of the festooned
power cables (fig. 71).
3. Convey the cable, which must be clamped with the appropriate cable press, if the hoist is equipped with an
incorporated control board (fig 69).
4. Convey all the electrical cables which must be clamped with appropriate cable presses, if the hoist is equipped
with a connection frame (fig. 70).
The DRH electric wire rope hoists and related trolleys can be supplied in the following configurations (see
chapter 2):
• Complete with incorporated controls (low voltage control panel and related push-button panel).
In this case, all the cabling is already pre-fitted and only the power line needs connecting to the
terminal block contained in the control equipment, located in the opposite side to the motor (fig. 69).
• Without controls, as they are designed to be controlled by an external control panel. On request, the
DRH hoist can be fitted with a frame for the connections and the cabling of all the electrical uses on
the hoist (fig. 70).
To prepare the electrical connections proceed in the following way:
To make electrical connections, if the hoist IS FITTED with an incorporated control board,
proceed in the following way:
fig. 69
fig. 70
fig. 71
• Never carry out electrical connections with live power
• Never make precarious connections or flying connections
• Clamp down completely the cable presses
• Procure the electrical circuit diagrams for the DRH hoist on which you are working.
KMAN16MG05
Summary of Contents for DRH 1 Series
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