Toro CT2120 30655 - Cutterhead Lapping; Back Lapping Procedure

necessarytocarryoutthebacklappingprocedureto
reprocessthecuttingedges.Inseverecasesitwillbe
necessarytoregrindthecuttingcylinderandthebottom
blade,referto
CutterheadsBackLapping(page48)/
CutterheadsGrinding(page49).
1
2
G014444
Figure68
CutterheadsBackLapping
WARNING
Contactwiththecutterheadsorothermovingparts
canresultinpersonalinjury.
•Keepngers,hands,andclothingawayfromthe
cutterheadsorothermovingparts.
•Neverattempttoturnthecutterheadsbyhand
orfootwhiletheengineisrunning.
Thisprocessisrecommendedforrestoringthesharp
cuttingedgestocylindersandbottombladeswhichare
essentialforgoodqualitygrasscutting.
Thisprocesscanonlydealwithasmallamountofmetal
removaltorestorethecuttingedges.Ifthebladeedges
areseriouslywornordamageditwillbenecessaryto
removethecomponentpartsandhavethemreground.
1.Checkthatthemowerengineisswitchedoffandthe
parkingbrakeapplied.
2.Adjustthecuttingcylinderstothebottombladesto
obtaineetingcontact.
3.Applyamediumgradedetergentbasedcarborundum
pastetothecuttingedgesofthecylinderswitha
longhandledbrush.
80GradeCarborundumpaste
PartNo.
1lb(0.45kg)
63-07-088
25lb(11.25kg)
63-07-086
G014445
Figure69
4.Ensurethattheareasurroundingthecutterhead
headsisclearofpeople.Keephandsandfeetclear
ofthecuttingcylindersduringtheperiodwhenthe
mowerengineisrunning.
5.Sitontheoperatorseat,startthemowerengineand
settheenginespeedatidle.
6.Operatethecutterheadsdriveswitchtothe
reverse/backlappositionforaperiodoftimeand
listentothegrindingaction.
G014443
90
0
Figure70
7.Operatethecutterheadsdriveswitchtotheoff
positionandswitchoffthemowerenginewhenthe
grindingactionhasstopped.
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