JLG X20JPLUS - Checking Wear of the Telescopic Arm Slide Blocks

172
BoomLiftModels X20JPLUS
MAINTENANCE
MUX20JP021602
RememberthatinallcasestheConstructorenvisionsamandatorycheckofthe
entiremachine, includingropesandpulleys,every1000hoursofuse,which
mustbeperformedatacertifiedassistancecentre.
12.16.CHECKINGWEAROFTHETELESCOPICARMSLIDEBLOCKS
• Visuallycheckplayoftheextensionboom.
•Incasetheplayexceeds3mmitisnecessarytoop
erateontheplasticregisters
screwingtheminordertoleantothearmincaseoftheupperones,orbringing
themto1mmcircaincaseofthelowerones.Checkthesupportandthecorrect
distance,slippingoffandclosingthearmcompletely.
•T
heslideblocksmustbereplacedatanauthorisedworkshop.
After having carried out any maintenance intervention, before al‐
lowinganoperatortousethemachinetoascendtoheightitscom‐
pulsorytocarryoutallmachinemovementsfromthegroundinorder
tocheckthecorrectfunctioningoftheh
ydraulicandelectricalparts.
Checkthefunctioningofallsafetydevicesandtheircorrect
Signalling on the machine remote control. Moreover, after having
carriedoutaseriesofmovements,re‐contrlthebalanceandthede‐
greeoftensionoftheropesandtheextensionoftheextensions.Only
atthispointisth
emachinereadyforuse.
Fig.175 Checkwear