JLG X17J Operator Manual User Manual
Page 46
3.3 C
YLINDER STOP VALVES
The stabiliser cylinders have a double stop valve which in case of system breakdown or hose
breakage stops the cylinder preventing dangerous platform instability situations.
All cylinders that move the aerial part of the platform structure are fitted with a stop valve
which in case of system breakdown or hose breakage stops the cylinder preventing the
basket from falling due to gravity.
These valves are set when the platform is tested by qualified personnel and must not be
tampered with for any reason whatsoever.
3.4 A
LIGNMENT PHOTOCELLS ON THE AERIAL PART OF THE STRUCTURE AND THE BASE OF THE
MACHINE
The platform has two safety photocells that ensure that the aerial part of the machine is com‑
pletely lowered and aligned with the base and that the telescopic arm is completely retrac‑
ted.
When these conditions are not met, a signal is sent that disables the movement of the stabili‑
sers.
X17JR0420113
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BOOM LIFT MODELS X17J
JLG