MERLO P25.6, Instruction Manual

Page: 54 / 232

4 - CONTROLS AND INSTRUMENTS
4 - 24
TELESCOPIC BOOM CONTROL JOYSTICK AND SELECTION OF THE DRIVE DIRECTION (1)
Your machine is equipped with a single-lever joystick (1) that allows you to control
the 4 main movements of the telescopic boom, to select the drive direction
(forward/reverse) of the machine and activate the second equipment hydraulic
function.The controls provided on the joystick are:
• RAISING / LOWERING OF THE TELESCOPIC BOOM
(move the joystick forwards or backwards)
A = raising of the telescopic boom
B = lowering of the telescopic boom
• UPWARD / DOWNWARD ROTATION OF THE FORKS
(move the joystick to the left or right)
C = downward tilt of the forks
D = upward tilt of the forks
• EXTENSION / RETRACTION OF THE TELESCOPIC BOOM
(use thumb wheel R1)
1 = extension of the telescopic boom
2 = retraction of the telescopic boom
• OPERATION OF ATTACHMENTS FITTED ON THE CARRIAGE (AUX 1)
(use thumb wheel R2)
3 = uncoupling/control of attachment
4 = control of attachment
• OPERATION OF ATTACHMENTS FITTED ON THE CARRIAGE (AUX 2)
(use thumb wheel R3)
5 = control of attachment
6 = control of attachment
• SELECTION OF FOWARD / REVERSE DRIVE
(use buttons F, R, N)
- TELESCOPIC BOOM CONTROLS
The speed at which the movement is performed is proportional to:
- the tilt angle of the joystick (the further the joystick is moved, the faster the movement)
- the rotation of thumb wheels "R1", and "R2" (the further the wheel is rotated, the faster the movement)
- the rotation speed of the diesel engine (the higher the engine rpm, the faster the movement).
The movement stops automatically when the joystick or the respective thumb wheel is released. The possibility of combining
the movements depends on the load conditions.
- SELECTION OF THE DRIVE DIRECTION (FORWARD / NEUTRAL / REVERSE)
The joystick (1) mounts buttons for selection of the drive direction (forward / neutral /reverse).
• Button F: forward drive selection
When forward drive is selected, the indicator light (LF) located next to the steering column is steadily illuminated.
• Button N: neutral selection
When neutral is selected, both indicator lights (LF and LR) are extinguished. The machine does not move when the
accelerator is pressed.
• Button R: reverse drive selection
When reverse drive is selected, the indicator light (LR) located next to the steering column is steadily illuminated.
The (F,N,R) buttons on the joystick have the same identical functions as the (F,N,R) buttons located on the forward/revers drive
selector next to the steering column and both may be used (for example, you can select forward drive by pressing the "F"
button on the joystick and subsequently press the "N" button on the forward/reverse drive selector (20) to select neutral, and so
on...).
Fore further information on the safe operation of this control, please refer to the instructions in the paragraph "FORWARD/
REVERSE DRIVE SELECTOR (20)" in this chapter.