Engine Maintenance - Craftsman professional PYT9000 El Manual Del Propietario

FUSE
Beforeservicing,repairing,or inspecting, alwaysdisengagePTO
(BladeEngageknob), set parkingbrake,stop engineand remove
to preventunintendedstarting.
A fuse is installedin yourtractor'swiringharnessto protectthe trac-
tor'selectricalsystemfrom damagecausedbyexcessiveamperage.
If the electricalsystemdoesnot function,or yourtractor'senginewill
notcrank,first checkto be certain that the fuse hasnot blown.It is
locatedunderthe hood,mountedbehindthe top of the dashpanel on
the supportbar.
Althoughmulti-viscosity oils (5W20, 10W30, e tc.) improvestarting
in cold weather,theywill resultin increasedoil consumptionwhen
usedabove32°RCheckyourengineoil levelmorefrequentlyto avoid
possibleenginedamagefrom runninglowon oil.
Tocheckthe engineoil, proceedas follows:
1. Ensurethat thetractoris on a levelsurface.
2. Cleanthe oil fill areaof any debris.
3. Removethe dipstickand wipewith a cleancloth.
4. Insertand tightendipstick.
5. Removethe dipstickand checkthe oil level.It shouldbe at the
Fullmarkon thedipstick.See Figure19.
Alwaysusea replacementfuse with the sameamperagecapacity as
the blownfuse.
TIRES
Neverexceedthe maximuminflation pressureshownon the sidewall
of thetire.
Referto the tire sidewallfor exacttire manufacturer's recommended or
maximumpsi. Donot overinfiate.
Uneventire pressurecouldcause thecuttingdeck to mow unevenly.
CHANGING THE TRANSMISSION DRIVE
BELT
Severalcomponentsmustbe removedand specialtools usedin order
to changethe tractor'stransmission drive belt. Seea Searsor other
qualifiedservicedealerto havethe transmissiondrivebelt replaced.
ENGINE MAINTENANCE
Beforeperformingany maintenance or repairs,disengagePTO
(BladeEngageknob), set parkingbrake,stop engineand remove
to preventunintendedstarting.
Checking the Engine Oil
Onlyuse high qualitydetergentoil ratedwith APIserviceclassification
SF,SG,SH, or SJ. Selectthe oil's SAEviscositygradeaccordingto
theexpectedoperatingtemperature. F ollowthe chart below.
,E _Warmer_
Colder _ 32°F
Figure19
6. If low, add oil slowlyintothe engineoil fill. Donot overfill.After
addingoil, wait one minuteand then recheckthe oil level.
Do notoverfill.Overfilling with oil may causethe engineto not start,
hard starting,or enginesmoking.If overthe FULL markon the
dipstick,drain oil to reduceoil levelto FULLmark on dipstick.
7. Replaceand tightendipstick.
5W20
Oil Viscosity Chart
24