JLG X14JH Operator Manual - Manual (Page 46)

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To control the overhead part of the structure without electric current, always remove the nip‑
ple (3) of the electric valve (4 ) (the outer lead seal automatically breaks by unscrewing and
taking off the cap) and arm it manually pushing and turning the knob (5) underneath, il the
inner lead‑covered cable automatically breaks by reinforcing the electrovalve.
The manoeuvre of the stabilisers can be done through the hand pump by only turning the
ignition key ON and making sure that there is no failure of the electric system.
Remember to put back the solenoid valve knob (5) in the originary position paying attention
to reassemble the protective cap and to restore the double lead seal.
When manoeuvring the platform with the emergency controls you are without any safety
devices. It is therefore necessary and mandatory to act on the controls only to bring back the
basket to the ground and making sure to do these manoeuvres without causing the instabi‑
lity of the working platform.
2.6.4 SOLENOID VALVES FOR EMERGENCY DESCENT
The cylinders of the first, second and third arm are equip‑
ped with solenoid valves for emergency descent (1). Acting
on the emergency descent selector on the electric panel con‑
trols situated on the control car excites this solenoid valves
allowing the descent of the overhead part of the structure
through gravity.
The use of this emergency device is bound to the presence of
voltage in the platform electric system.
Follow the same precautions as reported at point 2.6.3
BOOM LIFT MODELS X14JH
JLG
X14JHR0220311
3
4
5
IMPORTANTE
PERICOLO
1
DANGER
IMPORTANT