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12 – TOOLS
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CAUTION: when the jib is lower than 50°, the winch capacity is restricted to about 50 kg
12.4.1 Installation
1. On the switchboard, set the presence of the mechanical jib 3-JM (see paragraph 4.6)
2. Stabilize the machine
3. Take the rope block and the weights off the rope only leaving the cable with the metal
eyelet (thimble)
4. Disconnect the rest lock on the jib tip and turn the jib slightly towards the boom in order to
align the two right coupling holes with the ones on the crane boom extension
5. Use the boom extension to centre the hole and insert the two right pins (fig. 1)
6. Remove the pin fixing the jib to the crane, turn the jib and anchor it by means of the two
remaining left pins
7. Slip the rope along the upper pulley of the crane fourth extension and the jib rear and front
pulleys (fig. 2)
8. Put the rope block, 3 weights and limit micro switch back in their place according to the
needs
9. Connect the limit micro switch feeding plugs: 4
th
extension-jib cable winder, jib cable
winder-sensor on jib tip.
10. To adjust the jib inclination, clasp the hook as shown in fig. 3 and operate the winch gently
to lever and lift or to lower the boom and move the pin on the hole according to the
intended inclination
Fig. 1
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