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」MAINTENANCEwHENREQulRED
4・10WHENREQUIREDMAINTENANCEANDCHECKS
TRACKADJUSTMENT
團MeasuringTrackTension
1.PIacethecarrieronafirmandIeveI
ground.
2.CompIetelyraisethebody.Setthe
safetybar.
3、Haveaperson(60kg)onthecenterof
theupperrollerandtheidler.
4.Placeastraightedge,Iongenoughto
reachfromtheidlertotheupperroIler,
onthetracks.
5.Measurethemaximumamountoftrack
sagfromthehighpointofthetrack
grousertothebottomofthestraight
edge.Properlyadjustedtrackwmhave
approximate]y20to30mmsIack.
■
ToTightenTrack
Addgreasethroughthecheckvalve
fitting②untiltheadjustmentiscorrect.
Operatethemachinebackandforthto
equalizepressure.
Checktheamountoftracksagagain
andadjustasnecessary.
■TrackLoosening
1.Removesoildepositedonidlerbearing.
2.L,oosenthecheckvalve①oneturn
onlytoallowgreasetoescape.
3.TightenthecheckvaIveseatwhenthe
adjustmentiscorrect.
NEVERovertightenthecheckvalve,
Thetorquerequirementforcheckvaive
is59to69N・m(6to7kgf・m)
4.Operatethemachinebackandforthto
equa闘zepressure.
5.Checktheamountoftracksagagain
andadjustasnecessary.
Upperro"er
②Fitting
Greaseisunderhighpressure.
Donotremovegreasefitting②.
Greasecomingoutofthereliefvalve
underpressurecanpenetratethebody
causinginjuryordeath.
Donotwatchthereliefvalvetoseeif
greaseisescaping.Watchthetrackor
trackadlustmentcyiindertoseeifthe
trackisbeingloosened.
Loosenthecheckvalve①3tumsonIy.
4‑22
Sagwith
60kgforce:20陶30mm
ldler
①Checkvalve
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