44
BoomLiftModels X20JPLUS
SAFETYDEVICE
MUX20JP021602
8.4. ALIGNMENTPHOTOCELLSOFTHEAERIALPART
Theplatformhastwosafetyphotocellsthatensurethattheaerialpartofthema‐
chineiscompletelyloweredandalignedwith thebaseand thatthetelescopicarm
iscompletelyretracted.Whentheseconditionsarenotmet,asignalissentthat
disablesthemovementofthes
tabilisers.
8.5. STABILIZERPOSITIONMICROSWITCHES
Thepositionofthestabilisersandtheircontactwiththegroundaredetectedby
4microswitchespositionednearthestabilisercylinderrodfasteningpin.Themi‐
croswitchesfixedtothestabilisermustbereleasedwhenthestabiliserrestson
theground.
Fig.13 Photocells Fig.14 Reflector
Fig.15 Stabilize
rmicroswitches Fig.16 Indicatorl ightplateontheground