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INSTRUCTIONS JIB CRANE SERIES GBA - GBP
MAN05MGO5
4.3.5 Assembly of the arm –For GBA column-mounted cranes and GBP wall-mounted cranes
Fortheassemblyofthearmproceedasfollows:
1. Sling the arm, using strips made of textile fibre arranged in a “loop”, corresponding to the handling points shown
on the labelling and lift it with suitable means (overhead travelling crane, travelling crane, etc.). Keep the girder
horizontal to the ground and constantly check the stability of the slinging which must not move from the handling
point. Avoid oscillations and swinging and, if necessary, to maintain the equilibrium use a rope tied to the ends of
the arm (fig. 42).
2. Line the arm up with the plates (of the bracket or column) and position the clutch plate
2
and the pressure plate
3
in the upper part of the tube, making sure at the same time that the clutch plate
2
and the pressure plate
3
fit
into the lower part (fig. 43).
3. Insert the tube between the plates
4
until the rotation axis of the tube coincides with that of the plates and insert the
rotation pivots
5
(upper side pivot with 6 holes, lower side pivot with 3 holes), after lubricating them with grease (fig. 44).
4. Block, with the clamping couples shown in the table, the pivots
5
with their related screws
6
in the three holes at
120 on the pivots’ flange
5
(fig. 45).
5. Insert in the remaining holes of the upper side pivots’ flange
5,
the springs
7
and the screws
6
checking carefully
that the shank of the screws fits into the housing on the pressure plates
(fig. 46).
6. Regulate the slidability of the rotation of the arm, by acting on the braking system using register/adjuster screws
6,
until the traverse sensitivity required is obtained.
7. Carry out the check of the planarity of the arm
with the help of a level
,
Do this check by rotating the arm by
90°totheleftandtotheright(fig.47).
fig.42
fig.43
fig.44
• Keeping the arm clean is one of the indispensable conditions for its good sliding and to avoid a
premature deterioration of the rotation elements .
•Moderatelubricationwithgreaseofthebearingsisnecessary.
3
5
4
4
5
2
2
1
3
fig.45
fig.46
fig.47
5
6
5
6
7
8
9
9
9
L
L
L
9
L
KMAN05MG05
