Mfg. Co. Inc. Lawn Aerator User Manual

Maintenance
HeightAdjustmentTableandnotesinthe
AdjustingtheCuttingHeightsection.
9.Installunusedspacersbetweentopofspindleand
spindlenut.
10.Torqueboltto75–80ft-lb(102–109N-m)(see
Figure12).
Figure12
1.Springdiscwasher
(conetowardsbolthead)
2.Bladebolttorqueto
75–80ft-lb(102–109
N-m)
TransmissionBelt
Adjustment
1.Stopengineandwaitforallmovingpartstostop.
Engageparkingbrake.Removekeyorsparkplug
wire(s).
2.Totightentransmissionbelt,loosenthe3/8inch
nylocnutontransmissionbeltidlerpulley.Slide
boltinwardinslotandretightennylocnut.
3.Whenproperlyadjusted,thebeltshouldhave1/2
inch(1.3cm)ofdeectionwiththreepounds
ofpressureonthebeltmidwaybetweenthe
transmissionandenginepulley.
WheelDriveBeltPulley
Scrapers
1.Stopengineandwaitforallmovingpartstostop.
Engageparkingbrake.Removekeyorsparkplug
wire(s).
2.Besuremudandgrassscraper,oneachside,
isadjustedproperlyandcenteredinthepulley
grooves.Thepointedpartofthescrapershould
becenteredandasdeepinthepulleygrooveas
possiblewithoutrubbingatanypoint.
EnginetoMowerDeckBelt
1.Stopengineandwaitforallmovingpartstostop.
Engageparkingbrake.Removekeyorsparkplug
wire(s).
2.Checktheadjustmentofthelowerbladedrive
linkagelocatedbetweenthebellcrankonthe
enginedeckandassistarmonthemowerdeck.
Lengthenorshortenthelinkage.Whenproperly
adjusted,thereshouldbe1/16inchto1/8inch
(2–3mm)ofclearancebetweenbell-crankand
transmissionoutputshaftwhenbeltisengaged.
Makesuretheassistarmisagainsttherearassist
armstoponthedeck(see
Figure13).Pushthe
leverdowntothedisengagedposition.Theassist
armshouldcontactthefrontassistarmstopon
thedeck.Ifitdoesnotcontact,readjustsothat
thebellcrankisclosertothetransmissionoutput
shaft.
3.Beltmustbetightenoughtonotslipduringheavy
loadswhilecuttinggrass.Over-tensioningwill
reducebeltandspindlebearinglife.Toadjust
belttension,loosenthe5/16inchwhizlocknut
onturnbuckleandrotatetheturnbuckle;rotate
turnbuckletowardrearofmowertotighten,and
towardfrontofmowertoloosenbelttension(see
Figure13).Leaveaminimumof5/16inch(.79
cm)oftheeyeboltthreadsengagedonbothends
oftheturnbuckle.
For48”Decks:Ifthereisnoadjustmentleftin
theturnbuckleandthebeltisstillloose,therear
idlerpulleycanberepositionedinthefronthole
(SeeFigure12).Thebeltguidelocatednextto
thepulleymustalsoberepositionedinthefront
holewhenthepulleyismoved.Theturnbuckle
willneedtobereadjusted.
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