JLG X20JPLUS - Ropes Tension Adjustment Procedure

170
BoomLiftModels X20JPLUS
MAINTENANCE
MUX20JP021602
•Useadynamometricwrenchtocheckthecorrecttorqueofalropefixingnuts
andtherespectiverockerarms;recommendedtorque10Nm.
Ifthetensionoftheropesshouldnotbeadequ ate theconditionsforusemustbe
restoredbyscrupulouslyfollowingtheRopesTensionAdjustmentprocedurere‐
portedbelow.
12.15.3.RopesTensionAd
justmentProcedure
1 Stabilisethemachineontheflat.
2 Removethecoverintherearpartofthethirdboom.
3 Loosentheregistercounter‐nutsbyafewturns,positiontheminawaytoac‐
cesstheadjustmentnutsinordertomaketheadjustment.(2nutswithrelative
counter‐nutforoutletropesandon
enutwithrelativecounter‐nutforreturn
ropesrockerarm).
4 Completely retract both extendible arms and make them escape for about
30‐40cm.
5 Tightenthenutforthetractionofthefixingrockerarmofthereturnropesto
atorqueof10Nm.
6 Completelyextendtheextensionsandretractthembyabou
t30‐40cm.
7 Tightentheboltsofthetwooutputcablessothatthethreadedterminalscome
out of 65±3 mm from the rocker arm. During adjustment keep the ropes
blockedtopreventthemturningwith thenuts.Makeuseoftherelevantseat
forthewrenchonthecablesock
et.
Fig.171 Returnfixingropes