Aerial work platform
ZED 20.3 HV
11
COD. UM0284_GB | REV. 0.0 | ED: 09/17
Chapter 8
GB
MAINTENANCE
CAUTiOn
Be careful not to release hydraulic oil into the environment when changing it.
Dispose of the ilter in accordance with the law.
8.6.7
Restore levelling of work platform
CAUTiOn
if you notice that the work platform is not level with respect to the horizontal,
lower it to the ground and get off.
This maintenance work must be performed by a qualiied technician (M).
DAnGEr
THE presence of personnel inside the working platform during these operations
is strictly prohibited.
Restore safe working conditions (work platform in horizontal position), as follows:
1)
Remove the key fastened to the structure by the lead wire seal.
2)
access the “emergency ground controls” settings (Fig. 4.4);
3)
Place the key in the selector switch (Fig. 4.4, 6), rotating to the right to the “Emergency Control”
position;
4)
activate the extensible boom lifting selector (Fig. 4.4, 14). Keep the selector switch pressed
and at the same time use the joystick (Fig. 4.4, 10), until the work platform about a half metre;
5)
activate the boom extension selector (Fig. 4.4, 13). Keep the selector switch pressed and at the
same time use the joystick (Fig. 4.4, 10), until the work platform is raised about a half metre;
6)
carefully get up on the bed and open the diverter block lock (Fig. 8.4 4) with the key provided
by the Safety Manager, raising the silver coloured lever (Fig. 8.4, 5) on the turret;
7)
turn both of the two-position diverter valves (Fig. 8.4, 6 & 7) by two positions;
8)
get down from the bed of the vehicle and press the “extend telescopic boom” selector (Fig.
4.4, 13) and, without letting it go, press the joystick which controls movement speed (Fig. 4.4,
10). By doing this it is possible to level the working platform (completely lower and raise the
platform and then align it).
9)
After completing these operations, place both of the two-position deviator valves, located at the
base of the extension boom, back into their original position (extension position, indicated by
the label
A
. Remove the lever from the deviator valves, put it back it in the turret and secure it
using the black locking knob).
10)
attach the padlock in the locking position, close it and give the key back to the safety manager.
11)
check that the extension boom works correctly by pressing the switch that controls the extension
of the boom and using the potentiometer lever. Retract the extension boom into its rest position.
12)
Place the key selector switch (Fig. 4.4, 6) in the “ baskt controls” position;
13)
Remove the key and close the cover of the control panel.
