Case 621G - Initial 100 Hours; Wheel Nuts Tightening - Check

7-MAINTENANCE
Initial100hours
Wheelnutstightening-Check
WARNING
Explosionhazard!
Neverweldonawheel.Weldingcancausestressesthatwillcauseawheeltocrackorbreakunexpect-
edly.Tirescanseparateexplosivelyduringwelding.Alwayshaveaqualiedtiremechanicservice
wheelsandtires.
Failuretocomplycouldresultindeathorseriousinjury.
W0124A
Tireorrimservice
Alwayshaveaqualiedtiretechnicianservicethetires
andrimsforthismachine.Itisrecommendedthatyou
havethistechnicianinatethetires.T opreventacci-
dents,usearestrainingdevice(tireinationcage),cor-
rectequipment,andcorrectprocedure.
Explosiveseparationofthetire(singlepiecerim),orthe
tireand/orrimparts(multi-piecerim)cancauseserious
injuryordeath.
Studmountedwheels(ifequipped)
Machinesequippedwithoptionalheavydutyaxleshave
astudmountedwheel.TheHeavyDuty(HD)axlein-
corporatesastudandnutassembly.
Wheelbolttorque
Ifnecessary,tightenthewheelnutstotherequired
torque.
Useahandwrench(notanimpact)totightenthewheel
boltstopullthewheelagainsttheplanetaryhousing.
Tightenthewheelboltsusingthesequenceshown.
Firsttightentheboltsto278N·m(205.0lbft),then
tightentoanaltorqueof640–720N·m(472.0–
531.0lbft),usingthesamesequence.
LEIL15WHL1848AB1
7-50