belts failure book final ce8149
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V-Belt trouBleshooting and Failure analysis guide
Simplicity Snapper Massey Ferguson Agco Agco Allis Duetz-Allis Allis Chalmers Murray Brut
For Briggs & Stratton Discount Parts Call 606-678-9623 or 606-561-498
www.mymowerparts.com
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JoesSmallEngine& RepairShop
1234 MainSt.
Anytown, USA000000(000)000-0000
M-F: 8:00am- 7:00 pmSat.: 10:00 am- 5:00 pm
Presentthis coupon toreceivespecial offer. ExpiresXX/XX/XX
Presentthis coupon toreceivespecial offer. ExpiresXX/XX/XX
Mr.John Smith333 N.Third StreetAny Town, WI 55535
2006 Briggs& StrattonCorp.
Maintain the Tradition
BRIGGS & STRATTON Generation to Generation
Briggs& Strattonhas beenprovidingoutdoor powerequipmentengines
forthelast80 yearsandwillcontinuetoforgenerationstocome.
See the backfor Maintenance Coupons andSpecials.
Your Store Info
Your Customized Coupons
Your Target
Audience
Learn more about Dealer Promotions and CustomMarketing Materials on the Power Channel.
Custom marketing BeneFits
Briggs & Stratton Dealer Promotions offerCustom Marketing materials as an easy and
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These materials include:
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We do all the Work,
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Contact your Briggs & Stratton Distributor or call 1-877-249-6647 to enrollin the program and set yourself up to increase sales in 2009!
dealer Custom marketing
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This belt failure guide is designed to assist in inspecting failed belts and understanding the possible causeof the belt failure.
By having an understanding of the cause and effect relationship of belt failures, ensures an accurate andtime effective repair.
Most belts will operate for years with trouble-free performance. Assisting customers in determining thecause of a belt failure will result in increased customer confidence in the dealership and the product.
Use only genuine Briggs & Stratton Power Products Group belts specifically manufactured for use onSmplc, Sappe, Ma, Be, Masse Fegs, Agc, Agc Alls, Dez-Alls ad
Alls Chalmes Law ad Gade Epme.
HiGH quALity, LonG LiFE BELtS
Each is designed, engineered and tested to assure extended trouble-free performance.
Bggs & Sa Pwe Pdcs Gp ses hgh al bels f he fllwg eass:
Resistsoil,dirtandtemperatureextremes
Lastsuptofourtimeslongerthanautomotivebelts
Lowercostperhourofoperation
Maintenancefreeandrequiresnolubrication
Coversawiderangeofhorsepower
Veryruggedandwillprovideyearsoftrouble-freeperformanceevenunderthemostadverseconditions
Smoothstartingandoperation
MostareconstructedwithAramidcords
V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
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toP 10 StEPS For CHECkinG V-BELt iSSuES
1. Checkforcorrectbladesandbalancing.
2. Checkalldeckpulleysforwearorinconsistencies.
3. Checkthatalldeckpulleysareonthesameplane.
4. Idlersshouldbecheckedforproperangleoriftheyareoutofplane.
5. Idler arm should be free to rotate and maintain correct belt tension.
6. Makesurethebeltinstalledisthecorrectlength,partnumber,andconstruction,andhas no damage.
7. No objects, such as guides, should touch the belt other than pulleys and idlers.
8. Checkdeckforproperadjustment.Thisincludesproperheight,sidetoside,fronttoback.
9. Inspect belt tension springs for damage or defects.
10. Turnspindlesslowlyandlookforbentshaftsandpulleys,andcheckforbearingwear.
tESt ProCEDurE WitH MACHinE runninG AnD oPErAtor PoSitionED in SEAt
1. Runatfullthrottle,bladesnotrunning.Noticeifthereisexcessivevibrationfromengine.Repairasneeded.
2. Atthrottle,engageblades.Watchforextremebeltmovement.Repeatthisatthrottleand full throttle. (Some movement is normal.)
3. Withbladesrunning,notethevibration.(Thisshouldbecheckedasthethrottleismovedslowlyfromtofull.)Heavyvibrationmayrequiretryinganotherbeltorrecheckpulleysand spindles.
V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnD
oBSErVAtion
CAuSE rEMEDy
Sh bel lfe Incorrect part number belt used Replacewiththecorrectoriginalequipmentbelt
relavel apd fale; vsbleeas
Tensil members damaged throughimproper installation or adjustment
Replacewithnewbeltproperlyinstalled or adjusted
Worngroovesinpulley.Checkwithgauge
Replacepulley(s)
Sde walls sf ad sc, lwadhes bewee cve ples,css sec swlle
Oil or grease on belt or pulleys Removeoilandgrease.Replacebelt(s) and clean grooves with clothmoistened with non-toxic, non-flammable degreasing agent orcommercial detergent and water
Sde walls d ad had. Lwadhes bewee cve ples.Bm f bel caced
Hightemperatures Checkforexcessiveslippageorexcessive load
Deea f bbecmpds sed bel
Belt dressing Neverusedressingonv-belts.Cleanwith cloth moistened with non-toxic,non-flammable degreasing agent orcommercial detergent and water.Tighten drive belt properly to preventslippage
Exeme cve wea Belts rub against guard or otherobstruction
Removeobstructionoraligndrivetogive needed clearance
Sp bs bel Belt slip while starting or stallingunder load
Adjust tension as per operator'smanual or replace belt if severelydamaged
Be bels Suddenshockorimpact Be sure shields are in place andremove source of objects contactingdrive pulley or blades
W sde pae
Constantslippage Adjust tension as per operator'smanual or replace belt if severelydamaged
Misalignment of pulleys Checkandadjust
Worn pulleys Install new pulleys
Wrong belt cross section Use correct belt
Exposure to abrasive material Replacewornpartsandbesureproper shields are installed
Bm f bel cacg
Heatbuild-upfromconstantslippagedamaging under cord
Install correct belt, adjust tension asper operator's manual
Belt stored improperly Use recommended storage practice
Belt operating near high heat raisingoperating temperature
Use correct shielding from heatsource.Checkventilationanddebrisbuildup
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnDoBSErVAtion
CAuSE rEMEDy
Belt turnover pattern Misaligned pulleys Re-alignthedrivesystem
Worn pulley grooves Improper belt tension Adjust tension per OperatorsManual
Tensilememberbrokeninsidebelt through improper installation
or adjustment
Replacewithnewbelt(s)
Incorrectly aligned idler pulley Carefullyalignidler,checkalignment with drive loaded andunloaded
BELt turnoVEr PAttErn
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnDoBSErVAtion
CAuSE rEMEDy
Belt pulled apart Extremeshockload Removecauseofshockload
Belt came off drive Checkforforeignmaterialinthedrive. Insure proper tension anddrive alignment
BELt PuLLED APArt
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnDoBSErVAtion
CAuSE rEMEDy
Severe corner and surface wearpattern
Constantslip Adjust drive per OperatorsManual
Misalignment Re-alignpulleys
Worn pulleys Replacewithnewpulleys
Incorrect belt Replacewiththecorrectoriginalequipmentbelt
SEVErE CornEr AnD SurFACE WEAr PAttErnS
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnDoBSErVAtion
CAuSE rEMEDy
Side worn Misalignment Re-alignpulleys
Worn pulleys Replacewithnewpulleys
Incorrect belt Replacewiththecorrectoriginalequipmentbelt
Worn SiDE PAttErn
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnDoBSErVAtion
CAuSE rEMEDy
Side and bottom of belt burned Belt slipping while starting orstalling under load
Replacebeltandtensiondriveasper Operator's Manual
Worn pulley Replacewithnewpulleys
BottoM AnD SiDE BurnED
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnDoBSErVAtion
CAuSE rEMEDy
Bandcoverhasflakedoffandthesidewallsaresoftandsticky
Oil or grease on belts or pulleys Removesourceofoilorgrease.Cleanpulleygrooveswithaclothmoistened with non-flammable,non-toxic degreasing agent orcommercial detergent and water
BAnD SiDEWALL
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnDoBSErVAtion
CAuSE rEMEDy
Belt cut on bottom Belt came off pulley Checkdrivetensionandalignment-- re-tension and aligndrive properly
Foreign material fell into beltdrivemakingbeltcomeoff
Shielding not in place
Belt forced over the pulley flangeduring installation
Install new belt(s) properly
BELt Cut on BottoM
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V-BELt trouBLESHootinG AnD FAiLurE AnALySiS GuiDE
trouBLE ArEA AnDoBSErVAtion
CAuSE rEMEDy
Bottomofbeltcracking Belt slipping, causing heat buildupand gradual hardening of undercord
Install new belts. Adjust tensionas per Operator's Manual
Idler pulley improperly installedcausing wear on the wrong side
of the belt
Check Operator's Manual forproper belt routing
Improper storage Avoid extreme heat conditions. Donot bend at extreme angles andlay flat during storage
BAnD SiDEWALL
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Belt Cross Section Chart
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suPPort
PuBliCations
Brs & Stratto Servce Tools CataloPart #MS-8746
Briggs & StrattonOutdoor Clea wth Pressure Washers
Part #195888GS
Briggs & Stratton Master Parts CatalogPart #MS-4185
Brs & Stratto Small Ee Care & Repar BookPart #274041
Brs & Stratto Small Ees Text BookPart #CE8020
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CE8149-1/09
For more educational information contact us at 1-800-934-7730
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