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Ariens 939300 - page 1
939 Sno-Thro 01920500 12/06 Printed in USA Service Manual Models 939001, 939002, 939300 ...
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Ariens 939300 - page 2
2 T ABLE OF CONTENTS 1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.1 The Ma nual . . . . . . . . . . . . . . . . . . . . . . . 1- 5 1.2 Service a nd Replace ment Parts . . . . . . . 1-5 1.3 Produ ct Registratio n . . . . . . . . . . . . . . . . 1-5 1.4 Unaut horized Rep lacement Parts . . . . . . 1-5 1.5 Disclai mer . . . . . ...
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Ariens 939300 - page 3
3 Arie ns Company 655 West Ryan Street P. O . B o x 1 5 7 Bril li on, Wi sc on si n 541 10 - 0157 US A T elephone (920) 75 6-2141 Facs imil e (920) 75 6-2407 EC DECLARA T ION OF CONFORMI TY ISSUED BY THE MANUF ACTURER DÉCLARA TION DE CONFORMITÉ CE ÉMISE P AR LE F ABRICANT – EU-ÜBEREINSTI MMUNGSERKLÄRUNG DES HERSTELLERS – DI CHIARAZIO NE DI ...
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Ariens 939300 - page 4
4 CE Sound and Vibration – Niveau sonor e et vibra tion CE – CE-Geräuschpegel und Vibrat ionswerte – Livello sonor o e vibrazi oni CE – Sonido y vi bración CE – CE-lydnivå og Vibrasj onsmåling – CE ljudnivå och V ibrations-mät ning – CE-melut aso Tärinä – CE DŸwiêku i Wib ra cji – C E zvuk a vibrace Fred J. Moreaux: Qual ...
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Ariens 939300 - page 5
1 - 5 1.1 THE MANUAL This manual p rovides c omplete instruc tions for service, mainten ance, disas sembly , r epair , and ins tallation of the mechan ic al co mpo nen ts for the 939 Snow-T hro. Dealer trained service p ersonnel s hould us e this manual a s a suppl ement to and reminde r of the train ing session s conduc ted by th e company . Read ...
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Ariens 939300 - page 6
2 - 6 Servic e Letter - General technical informati on for the dealer . T echnical information on how to service th e produc t and produc t improvem ents. Service Bullet in - Notif ication to up date produc ts to resol ve certain is sues or a notifica tion of a po licy change . Product Notices - Notificati on of limite d product loca ted in a cer t ...
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Ariens 939300 - page 7
1 - 7 W ARNING! 2. DANGER! DANGER! 2.6 PREP ARATION Proper pr eparation is very impo rtant for efficient wo rk before y ou start to rem ove any par ts. A clean work area at th e beginni ng of each job will al low you to perform service repairs eas ily and qui ckly . T o reduce the inci dence of m isplaced to ols or parts, place remo ved compo nents ...
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Ariens 939300 - page 8
1 - 8 2.8 CLEANING AND STORAGE IMPORT ANT : Neve r spray u nit wit h water or st ore uni t outdoors t o help pr event sea led bearin g rust or corros ion. Water can seep into sealed b earings an d reduc e component life. Bearings ar e sealed agains t dirt and d ebris only . A unit t hat is ex cessi vely dirty should be clean ed before work starts. ...
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Ariens 939300 - page 9
1 - 9 DO NOT t hrow snow any higher than nece ssary . Deflect ed materi als can ca use inju ry and pro perty damage. Always stand clear of th e dischar ge area when opera ting t his unit. Fumes from engin e exhaus t can cause injury or death. DO NOT r un engin e in an encl osed area. A lways provide goo d ventilatio n. AL WA YS diseng age attachmen ...
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Ariens 939300 - page 10
3 - 10 AL WA YS keep protective s tructures, gu ards, and panels in good repair , in pla ce and se curely fas tened. NEVER m odify or remo ve safety dev ices. DO NOT c hange eng ine gove rnor setti ngs or over - speed e ngine. Fumes from engin e exhaus t can cause injury or death. DO NOT r un engin e in an encl osed area. A lways provide goo d vent ...
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Ariens 939300 - page 11
4 - 11 4.1 CONTROLS AND FEATURES SECTION 4 - GENERAL MAINTENANCE & ADJUSTMENT S 3 17 14 1 11 7 21 18 12 9 4 5 10 19 2 15 23 6 12 13 20 22 16 1. A ttach me nt Cl utch Lev er 2. T raction D rive C lutch Lever 3. Chute Ha ndle (9390 01, 002 ) 4. Discharge Chu te Defle ctor 5. Discharge Chu te 6. Impelle r 7. Clean-Out T ool 8. Auger 9. Scraper Bla ...
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Ariens 939300 - page 12
4 - 12 Arien s dealers provide an y servic e or adj ustments requir ed to ke ep your uni t operating a t peak efficie ncy . Should engine s ervice be required, c ontact an Ari ens dealer or an author ized en gine manuf acturer's service cente r . 4.2 SERVICE POSITION Place unit on a f lat level s urface. T ip m achine fo rward onto front of im ...
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Ariens 939300 - page 13
4 - 13 6. Inse rt key into igni tion switc h on engi ne and push into RUN pos ition. DO NOT twist key after it is inserte d. 7. If eng ine is col d, apply choke. A warm engi ne requir es less choking than a col d engine. See Engin e Manu al f or det ailed inst ruc tio ns. 8. Set thr ottle to prop er starting pos ition. 9. Press s tarter button on e ...
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Ariens 939300 - page 14
4 - 14 4.7 MAINTENANCE SCHEDULE The char t below s hows the recom mended mainten ance sched ule that s hould be p erformed on a regula r basis. M ore freq uent servi ce may b e required . * After first fi ve hour s of operati on. ** After first two h ours of operati on. Check Fasteners Make s ure all hardw are is tigh tened pro perly . Check Clutch ...
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Ariens 939300 - page 15
4 - 15 Auger Shaf t T o grease a uger sha ft, remove shear bolt nuts a nd shear b olt s. Apply gr ea se at t he gr ease ze rks and the n rotate the a uger shaft. Re place shear bolts per instruct ions in “Shear Bo lts” on page 17 . 4.8 ATT ACHMENT DRIVE BELT REPLACEMENT Remove Att achment Drive Belt (Figur es 7 and 8 ) 1. Shut off eng ine, rem ...
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Ariens 939300 - page 16
4 - 16 Replace Att achment Drive Bel t 1. Place new belt onto l ower pulley . 2. While hol ding brake out of way , tip unit togeth er . NOTE: Engage atta chment clutc h lever wh ile conn ect - ing hou sing to fram e to hold b rake out of th e way . 3. At t ach bl owe r hou sing t o fr ame with cap sc rews removed i n step 5 of “Remov e Attachment ...
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Ariens 939300 - page 17
5 - 17 4.10 SHEAR BOLTS IMPORT ANT : Use only A riens she ar bolts for replacem ent. Use of any other ty pe of shear bolt may result in severe damage t o unit. Occa sionall y a foreign object e ntering the b lower housin g may jam the auger and brea k the she ar bolts ( Figure 1 1 ) that secure the auger to the sha ft. Breaking the she ar bolts pre ...
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Ariens 939300 - page 18
5 - 18 5.3 RUNNERS Runners sho uld be adjusted as co ndi tio ns requir e ( Figu re 14 ). 1. Position unit on a h ard, flat, smooth l evel surfa ce. 2. Adjus t runners b y inserti ng a spacer of desired thick ness und er center o f scraper blade, lo osen runner hardware, slide runn ers to fl at surface . Allow 1/8 in . (3 mm) betwe en scraper b lade ...
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Ariens 939300 - page 19
5 - 19 4. Remove t wo screws s ecuring belt co ver to uni t and rem ove belt cove r . 5. Ad just t he at t achme nt idl er po sitio n. a. Loos en attachment idler nut ( Figure 8 ). b. T o increase dist an ce bet ween clu tch le ver and handl ebar , m ove the i dler toward s the attachment be lt. c. T o d ecrease th e distance be tween the clu tch l ...
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Ariens 939300 - page 20
6 - 20 6.1 INSPECT LOWER HANDLEBAR 1. Remove bolts attaching lower handlebar to each side of frame (2 pla ces, each si de) (see Fi gure 20 ). 2. Remove han dle bar assemb ly . 3. Check lower han dlebar parts for wear o r replacem ent 4. Assem ble, usi ng revers e procedur e. 6.2 REPLA CE LOWER HAND LEBAR Figure 20 1. Remove locking nu ts, lock wash ...
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Ariens 939300 - page 21
6 - 21 6.4 ATTA CHMENT C ONTROL LEVER AND CABLE Att achment Lever Figure 21 1. Remove jam nut and flat wash er from bolt. 2. Remove bushings an d torsion s pring. 3. Remove retaining rin g and tracti on cable 4. R emove c lutch leve r . 5. Assem ble, usi ng reve rse proce dure. Attach cable to bolt d uring as sembly . 6. Ad just cl utch l ever po s ...
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Ariens 939300 - page 22
7 - 22 7.1 ENGINE T ROUBLESHOOTING The fol lowing trou bleshoot ing ch art is to be used to isola te engine p roblems an d give po ssible causes and correc tive act ion responses . The troubles hooting ke y is generic and can be used for sever al types of e ngines. Us e only t hose possi ble causes and correctiv e actions th at apply t o the unit. ...
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Ariens 939300 - page 23
7 - 23 Exce ssive F uel Consumpti on Restri cti on in air cleaner Remove obstructi on Poor compre ssion Repair p er ins truc ti ons in manuf actur e r ’s manu al Incorrec t grade of fuel Use f uel recom mended i n manufac turer’s ma nual S ticking throttl e/restricte d movement Lubr icate or re place Leakin g cylind er head gasket Repair p er i ...
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Ariens 939300 - page 24
7 - 24 Poor Compression Leakin g cylind er head gasket Repla ce per ins tructions in manu facturer’s man ual Incorrec t ta ppet adju stmen t Adjust per i nstruct ions in manufact urer’s manu al S ticking va lves Repair p er ins truc ti ons in manuf actur e r ’s manu al Worn cylinde r bores Repair p er ins truc ti ons in manuf actur e r ’s m ...
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Ariens 939300 - page 25
7 - 25 7.2 ENGINE REMOVAL Figure 22 1. D rain gasoli ne. 2. Separate b lower housi ng from fra me (see Fi gu re 7 ). 3. Block fr ame front an d back s o it will not tip. 4. R emove b elt cover . 5. Remove attachment belt an d drive bel t from the engine pulleys . For ins truction s, see " Atta chment Driv e Be l t Rep l ac em e nt " on pa ...
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Ariens 939300 - page 26
8 - 26 The tr ansmissi on has no dealer- serviceabl e parts. If defe ctiv e, it m ust be repl aced a s a un it. 8.1 T RANSM ISS ION REMO VAL Figure 23 1. Shut off eng ine, rem ove key , disc onnect s park plug wire, a nd allow unit to cool com pletely . 2. D rain gasoli ne. 3. Pl ace m ach in e on a level surf ace , and t ip up i nto servic e posit ...
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Ariens 939300 - page 27
9 - 27 9.1 AUGER/IMPELLER REP AIR 1. Pl ace m achin e on a f lat , level s urfa ce. NOTE: Placing blocking under the runners on the blow er housing may make auger remo val e asier . 2. Remove bolt holdi ng auger dr ive pulley to shaft and rem ove pull ey . 3. Remove three tapping screws holdi ng shaft bushin g to blower h ousing an d remove fl ange ...
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Ariens 939300 - page 28
9 - 28 9.3 DISCHARGE CHUTE Models 939001 an d 939002. Figure 25 1. Remove bolts holding c hute pedes tal to blower housin g. 2. Lift chute a nd pedestal fr om hous ing. 3. Check parts for wear , an d replace a s needed. 4. Ass emble in reve rse o r der . W ARNING: DO N OT put hand s or feet near or under r otating parts. Keep cl ear of discha rge o ...
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Ariens 939300 - page 29
9 - 29 9.4 DISCHARGE CHUTE CRANK Model 9 39300 o nly or if k it 739001 00, Crank Ki t, is inst alle d. Figure 26 1. Remove th e cover over the chute gea r . 2. Remove th e spring cli p from the pi nion gear , and slide th e gear , thrust washe r , and b ushing off the crank s haf t. 3. Slide th e crank s haft back throug h the pinion g ear bracket ...
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Ariens 939300 - page 30
9 - 30 9.5 RUNNER AND SCRAPER Runners sho uld be adjusted as co ndi tio ns requir e ( Figu re 27 ). Raisi ng or lowering ru nners contro ls distance sc raper blad e is held ab ove surface b eing cleared. When op erating mac hine on grav el surface, l ower runn e rs s o t he h o usin g will not pick up grav el. On concrete , blacktop ped or packed d ...
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Ariens 939300 - page 31
10 - 31 10.1 ALUMINUM GEAR CASE 1. Remove auger/im peller and g ear case f rom housin g (see A uger/Impell er Repair on page 27). 2. Remove six tapping screws tha t hold ri ght and le ft gear c ase halves together ( Figure 28 ). 3. If flange bushing s need re placement: a. Remove oil seals from outside of gear cas e halves with a screwd river . b. ...
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Ariens 939300 - page 32
10 - 32 10.Befor e re -a ssem bling gear case : a. Clean ma ting surfac es of gea r case. b. Apply Loctite gask et to cleane d surface. c. A llow to cure fo r 24 hours. d. Make sur e the flats on the bus hings are in th eir proper p laces. 1 1. Re assemble g ear case. After asse mbly is com plete you shou ld be able to turn in put shaft free ly . 1 ...
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Ariens 939300 - page 33
1 - 33 Ariens Comp an y 655 Wes t Ryan S treet P .O. Box 157 Brillion, W I 541 10-0157 920-756-21 41 Fax 920-75 6-2407 www .ariens.co m ...
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