INSTRUMENTS AND CONTROLS 19/20 - BACKHOE CONTROL LEVERS (version with mechanical controls) q Before carrying out any manoeuvre with these levers, the operator must be seated in working position, that is, with the seat rotated by 180° with respect to the driving position and with fastened safety belt; before any manoeuvre, take all the precautions specified in section "3.13 USING THE MACHINE AS AN EXCAVATOR". q The machine is equipped with an acoustic alarm that is activated if the operator, with the engine running, shifts the reverse gear lever (1) to position F or R with the seat rotated in any position different from the correct driving position.
This is a danger signal, since it is absolutely forbidden to move the machine while working with the backhoe equipment or in any case with the seat rotated by 180° with respect to the regular driving position. Remember that the operator is allowed to move the machine only while seated in the correct driving position, with locked seat and fastened safety belt. q Before leaving the work position, lower the equipment to the ground and do not stop the engine if the safety lock is not engaged. q When travelling on roads, always lock the levers by means of the safety lock. The backhoe control levers can be equipped with different boom, arm and bucket controls according to three different systems:
1 - ISO PATTERN CONTROLS (Standard) 2 - KOMATSU PATTERN CONTROLS (On request) 3 - X-PATTERN CONTROLS (On request) No movement can be carried out when the safety lever is shifted upwards (see "3.1.2 BACKHOE LOCKS"). The following diagrams show the basic and combined manoeuvres that can be performed with these three systems. 107 WARNING