Exmark eXmark Lazer Z DS-Series LZDS User Manual download pdf (Page 41)

Maintenance

thechainboltsinthedeckliftarmsmakingsure

theydon’tmovewhiletightening.

9.Loosenthefournutswhichsecurethefront

swivels(twoperside)untilthefrontchainsare

looseandfrontofdeckissupportedbythe3/4

inch(19mm)block.DoNotloosenthefront

chainhardware.

10.Onleftside,adjustfrontswivelusingthelocking

nutbehindtheswiveluntilthefrontchainistight

andallslackisremovedfromlinkage.DoNotlift

frontofdeckoff3/4inch(19mm)block.Secure

frontswivelusinglockingnutinfrontofswivel.

Repeatforrightside.

11.Recheckthatthe3/4inch(19mm)blockstjust

snuglyunderthebracketsandthatthetensionon

allthechainsisapproximatelyequal.Makesure

allchainattachmentboltsaretight.Reposition

anti-scalprollersandtightensecurely.

Figure18

1.Applydownwardpressurehere

2.Placelockingpliersheretoholdspring

3.13–1/2inches(34.3cm)forcutheightsat2inchesor

aboveor14inches(35.6cm)forcutheightsbelow2

inches

4.Removeforceondeckspringsbylooseningnutshere

5.Swivel

6.Frontofunit

7.Socketheadadjustingscrew

8.Jamnut

12.Raisedeckliftlevertothe5inch(12.7cm)

cuttingheightposition(Figure10).Adjustspring

compressionuntilproperdistanceisobtained

betweenthetwolargewashers(Figure18).

Adjustmentismadebyturningthenutatthe

frontofeachspring(clockwisewillshortenthe

spring,counterclockwisewilllengthenthespring).

Lockinpositionwithjamnuts.

Note:Whenaboveadjustmentshavebeenmade,

thefrontofthedeckwillbeslightlylowerthanthe

rearofthedeck.

PumpDriveBeltTension

Self-tensioning-Noadjustmentnecessary.

DeckBeltTension

Self-tensioning-Noadjustmentnecessary.

MuleDriveBeltTension

Adjustment

Self-tensioningidler,adjustasfollows:

1.Stopengine,waitforallmovingpartstostop,and

removekey.Engageparkingbrake.

2.Checktomakesurethecenterofthebolthead

inthecenterofthespringloadedpulley,onleft

sideenginedecksupport,ispositionedbetween

thecentersofthetwoalignmentholesinthe

leftsupportplate(

Figure19andFigure20).It

isnecessarytoadjustthebelttensionwhenthe

centeroftheboltheadisatorbelowthecenterof

thebottomalignmenthole.

3.Whenadjustmentisnecessary,loosentheidler

pulleyontheright-handsidesoitcanmoveup

anddownintheslot.

Placeawrenchonthe3/8inchnutinthecenter

ofthespringloadedpulleyandapplyupward

pressuretorelievetensiononthespring(a1/2

inchdrivebreakerbarand9/16inchsocketworks

best).

Repositiontheadjustingpulleytothebottomof

theslot.

Note:Wheninstallinganewbelt,itisnecessary

torepositiontherightadjustingpulleyupwardin

theslotinordertopositionthecenterofthespring

loadedpulleybetweenthealignmentholes.

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