Page
C-25
Document 57.0007.0200 - 01/2006
OPERATING INSTRUCTIONS
Handler with telescopic boom
GTH-4013
C-3.7 MANUAL CONTROLS
In case of a malfunction of the control lever, it is
possible to use the emergency manual controls of the
main valve.
The main valve has four control levers that operate the
following functions:
Lever
In position
Boom down
In position
Boom up
Lever
In position
Fork holding frame pitched backwards
In position
Fork holding frame pitched forwards
Lever
In position
Boom telescope in
In position
Boom telescope out
Lever
In position
Attachment unlocked
In position
Attachment locked
IMPORTANT
The manual controls can be used only if the
machine is running or it is equipped with the
emergency pump.
In order to operate the emergency pump with the
manual controls, follow the instructions below:
•
Open the rear cover to reach the main valve.
•
Fit the control levers (supplied) to the elements of
the main valve.
•
Activate the emergency pump by holding button
Z
pressed down. If the button is released, the pump
stops.
•
Shift the lever of the main valve to the position
corresponding to the movement you wish to obtain.
DANGER
•
When operating the emergency controls in
manual mode, the load limiting device is disabled.
DANGER
For the use of the emergency controls, observe the
following sequence:
Lever
in
Boom fully retracted
Lever
in
Boom lowered
1
2
3
4
Z
