Operator's Manual

DriveChainMaintenance
CheckingandAdjustingthe
DriveChain
ServiceInterval:Aftertherst10hours
Every50hours
Thedrivechainshouldhave5to10mm(7/32to
13/32inch)ofexwhenapplying6.8kg(15lb)of
pressureatmid-span.
CheckingtheDrive-ChainTension
1.Removethedividerplate;refertoRemovingthe
DividerPlate(page25).
2.Placeastraightedgealongthechainfrom1
sprockettotheother(Figure41).
g021606
Figure41
1.Flexof5to10mm(7/32to13/32inch)
3.Withyournger,pushonthechainwith6.8
kg(15lb)ofpressure,midwaybetweenthe
sprockets(Figure41).
4.Measurethedistancefromthechaintothe
straightedge;thedistanceshouldbe5to10mm
(7/32to13/32inch).Ifthechaintensionneeds
adjustment,refertoAdjustingtheDrive-Chain
Tension(page32).
5.Installthedividerplate;refertoInstallingthe
DividerPlate(page26).
AdjustingtheDrive-ChainTension
Note:Adjustingthetensionofthedrivechainaffects
thetensionofthebelts;adjustthebelttensionafter
adjustingthedrive-chaintension.
1.Removethedividerplate;refertoRemovingthe
DividerPlate(page25).
2.Loosenthenutsandboltsthatsecurethe
pillow-blockbearingsfortheidlerpulley(Figure
42).
g021602
Figure42
1.Drivechain
3.Bolts(4)
2.Pillow-blockbearings4.Idlerpulley
3.Slidethepillow-blockbearings,alongwiththe
idlerpulleyandsmallsprocket,totheright
toincreasethechaintension,ortotheleftto
decreasethechaintension.
Note:T oslidethepillow-blockbearingstothe
left,youmustloosenthejamnutandtensioner
bolt(Figure43).Toslidethepillow-block
bearingstotheright,youmustloosenthemotor
mountingnutsandbolts(Figure35).
g021605
Figure43
1.Tensionerbolt2.Jamnut
4.Whenthechainhas5to10mm(7/32to13/32
inch)ofex,tightenthetensionerbolt,thejam
nut,andthenutsandboltsthatsecurethe
pillow-blockbearings.
5.Adjustthebelttension;refertoAdjustingthe
BeltGuide(page30).
6.Installthedividerplate;refertoInstallingthe
DividerPlate(page26).
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