Operator's Manual

5.Adjustthedrivebelttensionbylooseningthejam
nutandtighteningthetensionboltagainsttheengine
mountingplate,pushingtheenginerearward.
6.Layastraightedgeacrossclutchandywheelpulleys,
tightenbelttensionboltsothereis1cm(0.40inch)
ofexinthebeltwhenpushingdownwith6.8kg(15
lbs)force,atmid-span(whenre-tensioningabeltin
use)orwith8kg(18lbs)forcewheninstallinganew
belt(Figure27).
G016618
Figure27
1.Straightedge2.Flexof1cm(0.40inch)
7.Ensurethatthepulleysarealignedandtheengineis
parallelwiththeframe(notangledtowardtheside),
thentightenthe4engineplatemountingbolts,the4
boltssecuringtherearofthebeltguardtotheengine,
andthejamnut.
8.Installthebeltguardandsecureitwiththepreviously
removedwashersandbolts.
ReplacingtheDriveBelt
ServiceInterval:Every100hours
Note:Replacethebeltifitshowsanysignsofwear,cracks,
glazing,ordamage.
1.Removetheboltsandwasherssecuringthebeltguard
tomachine.
2.Removethebeltguard(Figure25).
3.Loosenthe4engineplatemountingboltsandthe4
boltssecuringtherearofthebeltguardtotheengine.
4.Loosenthebelttensionboltandjamnut,slidethe
enginetowardtheywheelhousingtoloosenbelt
(Figure26).
5.Replacedrivebelt.
6.Adjusttensionofnewbeltto7.8-8.6kg(18±0.9lb)
forceat1cm(0.40inch)beltdeectionatmid-span.
7.Tightenthe4engineplatemountingbolts,the4bolts
securingtherearofthebeltguardtotheengine,and
thejamnut.
8.Installthebeltguardandsecureitwiththepreviously
removedwashersandbolts.
CutterMaintenance
InspectingtheCutterBlock
ServiceInterval:Beforeeachuseordaily
Makesurethecutterblockhasacrispedgeandisnofarther
than3.2mm(1/8inch)awayfromtheblade.Ifthecutter
blockiswornorchippeditshouldbereplaced(Figure28).
G016620
Figure28
1.Blade
2.CutterBlock
ReplacingtheCutterBlades
ServiceInterval:Beforeeachuseordaily—Inspectthe
cutterblades.
Note:Usingadullbladewilldecreaseperformanceand
causeexcessivevibrationsthatwillcausedamagetotheBrush
Chipperorengine.
1.Removetheboltandwashersecuringtheywheel
housingcover,swingitforwardtoexposetheywheel.
2.Rotatetheywheelusingastickuntiltheboltsand
locknutsattachingthecutterbladestotheywheel
areaccessible(Figure29).
19