Operator's Manual

8.Loosenthejamnutundertherearsupportarmand
adjusttheadjustmentbolttogetameasurementof
3-1/8to3-1/4inches(80to83mm)(Figure68).
Note:Itisrecommendedthatbothsidesofthe
mowerareadjustedthesamedistance.
9.Tightenthejamnutundertherearsupportarm
andtightentheboltsecuringthechaintotherear
supportarm.
10.Adjusttheoppositesideifneeded.
AdjustingtheFront-to-RearMower
Pitch
1.Positiontherightbladefront-to-rear(Figure69).
Figure69
1.Measureherefromblade
tohardsurface
2.MeasureatAandB
2.MeasuretherightbladeattheAlocation,froma
levelsurfacetothecuttingedgeofthebladetip
(Figure69).
3.Recordthismeasurement.
4.MeasuretherightbladeattheBlocation,froma
levelsurfacetothecuttingedgeofthebladetip
(
Figure69).
5.Recordthismeasurement.
6.Themowerbladeshouldbea1/4to3/8inch
(6to10mm)loweratpositionAthanatposition
B(Figure69).Ifitisnotcorrect,proceedtothe
followingsteps.
Note:Bothofthefrontswivelsneedtobeadjusted
thesameamounttomaintainequalchaintension.
7.Loosenthefrontswiveljamnuts,atthefrontof
therightandleftswivels,approximatelya1/2inch
(13mm)(
Figure68).
8.Adjusttheliftnutsonboththeleftandtheright
sideofthemachinetoachieve1/4to3/8inch
(6to10mm)lowerinfrontatAthanintherearat
B(Figure68).
9.Tightenbothswiveljamnutsagainstthefrontswivel
tolocktheheight.
10.Checktomakesurethereisequaltensiononthe
chainsandadjustagainifneeded.
AdjustingtheCompressionSpring
1.Raisethemowerliftlevertothetransportposition.
2.Checkthedistancebetweenthetwolargewashers,
itneedstobe11-1/8inches(28.2cm)for52inch
mowerdecks,10-1/2inches(26.7cm)for60inch
mowerdecksor11–1/2inches(29.2cm)for72inch
mowerdecks(
Figure70).
Figure70
1.11–1/8inch(28.2cm)
betweenthelargewashers
for52inchmowerdecks
6.Liftnut
2.Frontnut7.Frontsupportarm
3.Springjamnut
8.Largewasher
4.Frontswivel
9.10-1/2inch(26.7cm)
betweenthelargewashers
for60inchmowerdecks
5.Swiveljamnut10.11-1/2inch(29.2cm)
betweenthelargewashers
for72inchmowerdecks
3.Adjustthisdistance,bylooseningthespringjam
nutandturningthenutinfrontofeachspring
(Figure70).Turningthenutclockwisewillshorten
thespring;counter-clockwisewilllengthenthe
spring.
4.Lockthenutintopositionbytighteningthespring
jamnut(Figure70).
ServicingtheCuttingBlades
Maintainsharpbladesthroughoutthecuttingseason
becausesharpbladescutcleanlywithouttearingor
49