BACKHOE TELESCOPIC ARM 6.5.3 USING THE TELESCOPIC ARM DANGER Before releasing and extending the arm, make sure that the stabilizers rest on firm ground. If possible, work with the backhoe centered on the guides and unload the material as near the machine as possible. If it is necessary to work with misaligned backhoe or with the backhoe completely shifted on the guides, operate slowly when swinging the arm to unload the material on the misaligned side; in this conditions, the machine may lose stability. Do not use the arm retracting cylinder to increase the bucket tearing force when digging. For the other possible uses, see “3.13 USING THE MACHINE AS AN EXCAVATOR”.
6.5.4 MAINTENANCE The telescopic arm requires two maintenance operations: 1 - Lubrication of the joints (see “4.5.4 LUBRICATION DIAGRAM”). 2 - Adjustment of the slide guide (8) slack, which must be carried out occasionally, when impacts or vibrations are noticed during work. IMPORTANTE Lubricate the telescopic arm guides only if the sliding shoes are made of brass. Plastic shoes do not require lubrication. 225 6.5.4.1 ADJUSTING THE GUIDE SLACK DANGER • When leaving the operator’s seat for the adjustment of the guides, remove the ignition key. • Adjust the screws and guides one by one. • Do not place tools in the space between the safety locks and the arm.
9 9 • When leaving the operator’s seat for the adjustment of the guides, remove the ignition key. • Adjust the screws and guides one by one. • Do not place tools in the space between the safety locks and the arm. 1 - Position the machine on flat ground and lower the stabilizers. 2 - Raise the boom, fold the bucket completely and extend the telescopic part (7) completely. 3 - Fold the arm until the slide guides (8) are perpendicular to the ground and in any case positioned so that the extendable part is completely free and does not strain the guides. 4 - Stop the engine. 5 - Check the side on which the adjusting dowels (9) of the guides protrude more. Adjust by working on this side only.
7 8 RWA03590 7 8 RWA03590