AssemblingtheImpactArmAssembly(continued)
g241353
Figure19
10.Threadrodend(1)withjamnut(2)intoendofthespringshaftsothat
distancefromcenteroftheimpacthousingmountingholeisfrom73.4to
73.7cm(28.91to29.03in);refertoFigure19.Donottightenthejamnut
untiltheimpactarmisinstalledtocuttingunit.
InstallingtheImpactArmAssembly
1.Installthenewpivothubbushings(16and19).
2.Installthegreasetting(20)ontothepivothub(18).
Note:Theorientationofthegreasetting(20)shouldbetowardsthesmall
angebushing(16).
3.Positionthepivothubassembly(18)ontothemachineframeassembly.
4.Slidetheliftarmpinassembly(21)throughthepivothub(18)andframe
assembly.Securethepinassembly(21)withabolt(22).
5.Positiontheimpactarmassemblyontothepivothub(18)andsecurewiththe
washers(12),bolt(11)andlocknut(13).
6.Installtheimpactarmassembly(1)ontothecuttingunitassembly(14)and
securewiththebolt(2),spacers(3)andnut(4).
7.Tightentherodendjamnut.
8.Lubricatetheimpactarmpivothubgreasetting.
9.Beforereturningthemachinetoservice,raiseandlowerthecuttingunitto
verifythathydraulichosesandttingsdonotcontactanythingthroughoutthe
entirerangeofmovement.
Chassis:ServiceandRepairs
Page3–24
Groundsmaster®1200Pull-BehindRotaryMower
18235SLRevA