
MAINTENANCE
500HOURS
4・7500HOURSMAiNTENANCEANDCHECKS
FirstPerformPreviousServiceHour[tems,
■ChecktheFixedBoltTorque
WhenIoosenedboltornutisfoundatdailycheck,
retaightitwithtorquespecificationstable.
1.Specialtorquespecifications
Specialtightenlsappliedformainboltsas
illustratedbebw.
Whenreplacingbolts,applymolybdenumgrease
tobolts,nuts,andbearingsuげaceofnuts.Then,
tightenthemwithspecifiedtorques,
目口
軍日
oo
曙●
一
1②3
No.ThreadSizeTighteningTorque
SpecialtighteningWrenchSize(mm)kgf-mN・m
①TravelreductionGear30M2048.7476
②Sprocket30M2048.7476
③Lowerroller36M2484.1~92.5825~908
2.Generaltorquespecifications
Otherthanabove‑mentioned,referthenexttablefortorques.
StandardTorque
ThreadSize(mm)Coarse10TBoltFine10TBolt
(kgf・m)(N・m)(kgf・m)(N・m)
M82.3232.525
M104.8475.150
M128.5839.391
M1621.020622.5220
M2042.041246.0450
M2473.071583.0813
HighPressureHoseUnionNut
StandardTorque
HoseSize(inch)(kgf・m)(N・m)
1/4"2.525
3/8"5.O49
1/2"6.059
3/4"12.O118
1"14.0137
1-1/4"17.O167
4‑13