Toro ProLine H800 - Drive System Maintenance; Torquing the Wheel Lug Nuts; Maintaining the Rear Wheel Alignment; Adjusting Steering Stops

DriveSystem
Maintenance
TorquingtheWheelLug
Nuts
ServiceInterval:Afterthersthour
Aftertherst10hours
Every200hours
Wheellugnuttorquespecication:85to90N∙m
(62to66ft-lb)
Torquethelugnutsatthefrontandrearwheels
inacrossingpatternasshowninFigure82tothe
speciedtorque.
g034007
Figure82
MaintainingtheRearWheel
Alignment
CheckingtheRearWheel
Alignment
ServiceInterval:Every200hours
1.Parkthemachineonalevelsurface.
2.DisengagethePTO,lowerthemowerdeck,and
engagetheparkingbrake.
3.Shutofftheengineandremovethekey.
4.Rotatethesteeringwheelsothattherear
wheelsarestraightahead.
5.Measurethecenter-to-centerdistanceatwheel
hubheight,infrontandinbackofthereartires.
Note:Therearwheelsshouldnottoe-inor
toe-outwhentheyarealignedcorrectly.
6.Ifthewheelstoe-inortoe-out,alignthewheels;
refertoAdjustingtheRearWheelToe-In(page
61).
AdjustingtheRearWheelToe-In
1.Loosenthejamnutsatbothendsoftheleftand
righttierods.
2.Adjustbothtierodsuntilcenter-to-center
distanceatfrontandbackofrearwheelsisthe
same(Figure83).
3.Whenrearwheelsareadjustedcorrectly,tighten
jamnutsagainsttierods.
g217458
Figure83
1.Steeringplate2.Samedimensionatfront
andrearofwheels
AdjustingSteeringStops
Therear-axle-steeringstopshelppreventover-travel
ofthesteeringcylinderincaseofimpactontherear
wheels.Adjustthestopssothatthereis0.23cm
(0.090inch)clearancebetweentheboltheadandthe
knuckleontheaxlewhenyouturnthesteeringwheel
completelytotheleftortotheright.
Threadtheboltsinoroutuntilyouattainaclearance
of0.23cm(0.090inch);refertoFigure84.
g006075
Figure84
1.Steeringstop(rightsideshown)
61