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drhrib51

MAN16MG05

instructions

for

use

series

drh

1/2/3/4 -

dst

drt

5. Carry out the picking up and handling of the pallet using a forklift truck or other suitable means, positioning the

pallet in such a way that the vertical axis of the girder is perpendicular to that of the hoist and the horizontal axes
of both are parallel (fig. 49).

6. Loosen, without unscrewing them completely, the fixing screws

-1-

of the horizontal plates

-2-

of the vertical

plates on the balance weight side

-3-

until they are not rigidly constrained together, as well as the self-blocking

nuts

-4-

of the brackets

-5-

which fix the plates

-3-

on the balance weight side of the bars

-6-

(fig. 50).

7. In order to make the plates

-3-

on the balance weight side slide freely on the bars

-6-

remove from the brackets

-5-

the spacers

-7-

, by unscrewing the nuts completely

-4-

and taking out the screws

-8-

(fig. 51).

8. Let both plates slide

-3-

on the bars

-6-

so as to widen the preset width of the wheels, until the internal space

between the wheels is greater than that of the girder wing (fig. 52).

NOTE: In fig. 52 you can see where add the ballast as described in step 17 to pag. 57.

fig. 49

The installation on the girder at a height of the hoist/trolley unit positioned on a pallet must be carried

out SOLELY by ELEVATING it with the help of a forklift truck, or a raisable platform or of other means

suitable for the purpose and NEVER BY LIFTING, because the slings would make the assembling on the

girder difficult or dangerous (fig. 34).

Operate SOLELY on the plates on the balance weight side and NEVER REMOVE either the plates on

the hoist side or the balance weight itself.

drhrib50

fig. 51

fig. 52

fig. 50

drhrib49

Beam wing (mm) drh1 ballast kg drh2 ballast kg drh3 ballast kg

120

–

135

160

180

–

200

–

instructions

for

use

series

drh

1/2/3/4 -

dst

drt

MAN16MG05

9. Using a mobile scaffold or raisable platform, an operator reaches the installation height of the girder, while the

other operator lifts the pallet, slowly and without oscillating the load, to draw level with the lower edge of the
sliding girder of the trolley.

10. The operator at a height, from the scaffold, gives instructions to the forklift truck operator to:

• lift the pallet slowly and levelly until the trolley/hoist is inserted in the girder, so that the lower edge of

the wheels exceeds the height of the sliding track of the girder.

• go forward with the forklift truck a few centimetres to draw the edges of the wheels of the

plates on the

hoist side level

to the edge of the girder

11. Operating from the scaffold at a height, let the

plates on the balance weight side

slide on the bars to draw

the edges of the wheels level to the edge of the girder (fig. 53).

12. Lower the loading forks of the forklift truck, until the trolley wheels are resting on the girder wing.
13. Check that all four sliding tracks of the trolley wheels are resting correctly on the girder and that between their

edge and the wing of the section bar there is a maximum clearance of 2 mm on either side (fig. 54).

14. Release the trolley/hoist from its fastenings and bring the pallet to the ground with the forklift truck.
15. Tighten completely the fixing screws

-1-

of the stiffening plates

-2-

and put back the spacers

-7-

16. Tighten the self-blocking nuts

-4-

of the brackets

-5-

(fig. 55) applying the clamping couple shown in the

table, with a dynamometric spanner (fig. 56).

17.