Ariens 915304 manuale d’uso

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1 Section 1 - Introduction . . . . . . . . . . . . . . . . . . 1-2 1.1 The Ma nual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 Service And Replacem ent Parts . . . . . . . . . . . . . 1-2 1.3 Product Registratio n . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.4 Unauthori zed Replace ment Parts . . . . . . . . . . . . 1-2[...]

1 - 2 1.1 THE MANUAL The purp ose of this m anual is to provide complete instruc tions for s ervice, m aintenance, d isassembl y , repair, and install ation of th e mechani cal co mponents for the 915 EZ Rider . Dealer trained service p ersonne l should use this manual a s a suppl ement to and reminder o f the train ing session s conduc ted by the [...]

2 - 3 2.1 SAFETY ALERTS Look f or these sy mbols to point out important s afety precauti ons. They mean: Attentio n! Personal Saf ety Is I nvolved! Become Alert! Obey The Message! 2.2 SIGNAL WORDS The safet y alert sy mbol is us ed in decal s on the un it and w ith proper oper ation pr ocedures in this manu al. They ale rt you to the existen ce and[...]

2 - 4 2. If a pre servative fl uid was used in fue l tank, drain and disc ard. Fill fuel ta nk with fresh n ew fuel. 2.9 SAFETY RULES W alk Around Inspection Complete a walk arou nd inspe ction of u nit and work area to underst and: • W or k ar ea. • Y our unit. • All safety d ecals. Wor k A re a AL WA YS chec k overhead a nd side c learances[...]

2 - 5 Avoid Sharp Edges. S harp edges can cut. M oving parts can cut o r amputate fi ngers or a hand. Wear gloves to service unit when h andling sha rp edges . AL WA YS keep hands awa y from any pinch point s. AL WA YS keep hands an d feet away from all mo ving parts during o peration. Moving p arts ca n cut off body part s. DO NOT t ouch unit part[...]

3 - 6 SECTION 3 - SPECIFICATIONS Model Numbe r 915304 915305 Model EZR 174 2 EZR 2048 Engi ne 17.0 HP OHV 20.0 HP OHV Manufactu re Briggs & Strat ton Briggs & St ratton Fuel & C apacity - ga l (L) Unleaded 3. 5 (13.3) Unleaded 3.5 (13.3) Idle RPM 1800 RPM 1800 RPM Govern ed RPM 3000 R PM 3150 RPM Crank Case Cap a city (Oil Filter) - oz [...]

3 - 7 Model Numbe r 915013 915014 Model EZR 174 2 EZR 2048 Engi ne 17.0 HP OHV 20.0 HP OHV Manufactu re Briggs & Strat ton Briggs & St ratton Fuel & C apacity - ga l (L) Unleaded 3. 5 (13.3) Unleaded 3.5 (13.3) Idle RPM 1800 RPM 1800 RPM Govern ed RPM 3300 R PM 3250 RPM Crank Case Cap a city (Oil Filter) - oz (L) 48 (1.4) 64 (1.9) Air C[...]

4 - 8 4.1 CONTROLS AND FEATURES SECTION 4 - GENERAL MAINTENA NCE & ADJUSTMENTS 1. Steering C ontrol Lev ers 2. Battery Comp artmen t 3. I gnit ion S witc h 4. Power T ake Off (PT O) 5. T hrot tle Co ntro l (Thr ottl e/Chok e Con trol ) 6. Choke Co ntrol (2048 ) 7. Parking Brak e Lever 8. Attachmen t Lift Leve r 9. Foot Rest 10. Fu el Level Indi[...]

4 - 9 4.2 CHECK FUEL LEVEL The fuel lev el is shown throu gh a window in the con trol panel n ext to t he parking brake. W ARNING: Fue l is highly fl ammable and its vapors are expl osiv e. Hand le with ca re. NO smoki ng, NO sparks, NO flames. Refer to Engine M anual for proper fuel. T o add fuel to the f uel tank: 1. AL WA YS plac e unit in open [...]

4 - 10 4.4 T O REMOVE 48" MOWER DECK 1. T urn off engin e, engage p arking br ake and allo w hot parts to cool. 2. Pl ace cent er de ck lift handle in lowest (1 ) positio n. 3. Engage attachment lift loc k. Pull han dle out and rotate down 90 o . Hand le will sp ring into locked positi on. 4. Disconnec t mower belt id ler spring from bol t und[...]

4 - 11 3. Engage attachment lift loc k. Pull han dle out and rotate down 90 o . 4. Loosen nut on rod link at fro nt of tractor. It is not necess ary to remo ve it entir ely . 5. Releas e rod lin k locking brackets fr om rod link at front of dec k. 6. Remove deck bel t from drive p ulley . 7. Remove hair pins a nd clev is pins from rear deck link . [...]

4 - 12 1. T o adjus t mower heigh t, place mower i n the number three (3) pos ition. 2. Loosen height adj uster nuts . 3. Remove hai r pins and was hers holdi ng height adju sters t o lift arm an d unhook h eight adjusters from lift arm. 4. T urn hei ght adjuster s equall y clock wise to ra ise mowe r , or equal ly c ounterclock wise to l ower mowe[...]

4 - 13 4.10 N EUTRAL ADJUSTMEN T (SPEED CONTROL) 1. Stop the engine. Rem ove the ign ition key . Push th e PTO knob into the "OFF" posit ion. 2. Pl ace jack(s ) under re ar tr ansaxl es onl y . If ja ck(s) are not available, place supp ort blocks under b oth transa xles at the rear of t he unit to rai se the rear wheels off the ground. 3.[...]

4 - 14 For fina l tracking ad justment: 1. Remove side shrou ds. Set a side. 2. Loosen bolts wh ich atta ch the ecc entric to the seat suppor t. Do not remo ve the bol ts. 3. Rotate ec centric to adjust th e travel of the speed contro l arm. The thi cker port ion of the eccentric shorte ns the dist ance the steering c ontrol lev er will travel fo r[...]

4 - 15 4.13 ADJUSTING THE PARKING BRAKE The park ing brake has no ad justments. If the brake i s not worki ng properly ins pect the lin kage for wear a nd replace as needed . Figu re 15 PE0380 1 2 3 4 5 3 1. Brake Leve r Pivot 2. Brake Lever 3. Flange Bus hin g 4. Brake Arm 5. D ump V al v e[...]

5 - 16 5.1 ENGINE T ROUBLESHOOTING The follo wing trou bleshoot ing chart i s to be used t o isola te engine p roblems and give po ssible causes and correc tive action responses . The troubles hooting key is generic and can be used for sever al types of e ngines. Use only thos e possibl e causes and correcti ve actions th at apply t o the unit. SEC[...]

5 - 17 5.2 CHECKING ENGINE OIL Check the engine oil dail y prior to use. IMPORT ANT : Nev er operate the engine with the oil below th e low mark on the dips tick. See the engine man ual for o il specifi cations an d oil filter service instruc tions. T o chec k oil level: 1. Move th e unit to l evel locati on. 2. Clean a round th e dipstick and fill[...]

5 - 18 5. Remove the throttle a nd choke control fr om the engine. 6. Remove the ele ctri ca l wiring from the engine (charge lead, starter ca ble, fuel soleno id lead, and magn eto kill wir e). 7. Remove fuel line from engine first. Drain fu el from line ba ck into fuel tank. 8. Remove the exhaust s ystem from under the frame. Disconnec t at the e[...]

6 - 19 6.1 CLUTCH T O DECK DRIVE BELT REPLACEMENT 1. Disconnec t idler spring from the fra me, Figure 16 . IMPORT ANT : This re qu ires a s pr ing h ook. DO NOT use a si de cutter pli ers. The belt ca n be easily remo ved from the de ck. 2. Remove belt from el ectric cl utch and d rive pull ey . 3. Install new belt o nto driv e pulley an d electric[...]

6 - 20 6.3 MOWER DECK BELT REPLACEMENT (42" DECK) 1. Remove mower driv e belt (see procedure above). 2. Detach mower d eck from tractor . S ee To R e m o v e 42" Mow er Deck in Service and A djustme nts . 3. Remove sh eav e cover s. 4. Loosen belt idle r pivot and slott ed idler lock nu t. 5. Install new belt. See insta llation d ecal for[...]

6 - 21 NOTE: The 42" dec k uses a r etainer hub and blade tray with a rectan gular hole. This feature h elps ens ure the blad es will be 9 0 o to each o ther . 2. T i ghten the loc k nut(s) to a torque of 60 ft-lbs (82 Nm). 3. Put the i gnition w ire(s) back o n the spark plug(s) . IMPORT ANT : W hen instal ling bl ades on the 42" M ower [...]

7 - 22 7.1 HYDRO T RAN SMISSION T ROUBLESHOOTING The follo wing trou bleshoot ing chart i s to be used t o isola te hydro transmiss ion pro blems an d give po ssible cause s and corr ective action res ponses. The troubles hooting key is generic and can be used for sever al types of transm issions. Use on ly those possible causes a nd cor rective ac[...]

7 - 23 Figure 21 - Left Transaxle 1. Back Cover 2. Left Hand Brake Asse mbly 3. Brake Disc 4. B evel Ge ar 5. Brake Shaft Ki t 6. Bypass Actuator 7. Motor Shaft 8. Filter 9. Center Sec tion Ass embly 10.Cyli nder Block Assemb ly 1 1.Input Shaft 12.V ariable Swashplate 13.Cradl e Bearing 14.Uppe r Housing A ssembly 15.Cont rol Arm PE0480 1 2 3 4 5 6[...]

7 - 24 7.2 HYDRO-GEAR FLUID RECOMMENDATIONS The fluid s used in Hy dro-Gea r transaxles have bee n carefu lly se lected, an d only eq uivalen t or better produc ts should b e used. T ypically , an en gine oil wi th a minimum ra ting of 55 sus at 210 o F an d an API c lassification o f SH/CD is recom mended. A 20W -50 engi ne oil has be en selecte d[...]

7 - 25 Lubric ate the ne w seal prio r to instal lation wit h a petrol eum jell y . Wrap the shaft spline wi th a thin p lastic or c ellophane tape to pr event da mage to the new seal lip during instal lation. Slide the seal o ver the sh aft and pre ss it into t he housin g bore. Be c areful n ot damage th e seal. The seal sho uld se at against the[...]

7 - 26 16.Remov e the motor s haft, wash ers and byp ass plate fr om the ce nter secti on and inspe ct for unusua l wear or da mage. Insp ect the cen ter sec tion run ning sur faces fo r unusual wear or da mage. 17.Remov e the pump block a ssembly , block thrust washer and sp ring from the inpu t shaft and inspect for unus ual wear or damage. The p[...]

7 - 27 1. Inst all the di splacem ent contr ol shaft. 2. Inst all the pum p input s haft assem bly and ret aining ring into the housi ng. 3. Inst all the pu mp shaft l ip seal. 4. Reposi tion the upper housing and inst all the cradle bearin gs. 5. Install the slot guide blo ck onto the d isplaceme nt contr ol shaft. 6. Inst all the s washplate asse[...]

7 - 28 Check the oil le vel after fully p urging th e unit of a ir . It should be betw een 1.25" a nd 1.62" ( 3.175-4 .1 1 cm) from th e top of the h ousing. After ins talling the IHT , make sure all linkages and actuato rs and func tioning pr operly . 7.6 HYDRO-GEAR T RANSM ISSION REMOVAL 1. Place the unit on a f lat surfa ce and remo ve[...]

8 - 29 8.1 PTO JACKSHAFT REMOVAL 1. Place the unit o n a flat level s urface, and lower the mowe r pan. 2. Open th e front pa nel by remo ving the two c ap screws in the lif t handle c over plate . Remove th e two ta p tites in the front pan el and remov e panel expos ing the bat tery and ele ctrical sy stem. 3. Remove the negative lea d from the b[...]

9 - 30 9.1 LIFT SYSTEM Refer to Figu re 29 for the l ift system. The mower pan lift sy stem is a manual lift system contro lled by the operator . 9.2 LIFT SYSTEM REMOVAL 1. Remove the mower deck from th e unit pr ior to lift system re moval . 2. Place th e lift handle in the highest cut ting heigh t availab le. 3. Remove th e plate, pa rking bra ke[...]

10 - 31 10.1 FUEL SYSTEM T ROUBLESHOOTING The follo wing trou bleshoot ing chart i s to be used t o isola te fuel sys tem proble ms and give poss ible cau ses are c orrec tive a ction respon ses The troubles hooting key is generic and can be used for sever al types of transm issions. Use on ly those possible causes a nd cor rective act ions tha t a[...]

10 - 32 10.2 FUEL PUMP The impul se style f uel pump i s the most c ommonly used fu el pump. Im pulse fue l pumps m ay either b e mounted externally onto the c arburetor fuel inlet o r remote ly mounte d. These pumps are connec ted in the fuel li ne between t he fuel su pply and the carbur etor or directly to the fuel inl et. Impuls e fuel pum ps a[...]

11 - 33 1 1.1 T OOLS There are some spe cialized t ools and test equip ment that are needed for e lectrical repair wo rk. A brie f desc r ipti on of thes e follows . Long or needle nose pliers - use d to connect or bend wires and connect ors in cl ose quarter s. Diagonal cutters - us ed to cut wires or trim connec- tions. Wire stripper/crimping too[...]

11 - 34 V oltage Measurement There are two basic rules to be remembe red when using a voltmete r . A volt meter mea sures t he voltag e difference between the test leads a nd the vol tmeter is always connected a cross the circuit unde r test. Current Measurement The two ru les to r emember when measuring current with an a mmeter are; an ammeter mea[...]

11 - 35 Clean Battery Corrosi on and dirt o n the ba ttery and term inals can cause the battery t o "leak" po wer . • Re move batt ery . (See B attery R emova l and Inst allation ) • Rins e the battery wi th plain w ater and dry . • Clea n termina ls and batter y cable en ds with wi re brush until br ight. • Co at termin als with [...]

11 - 36 Electrolyte Level Ever y 25 hour s of operati on, chec k electr olyte lev el of each c ell by remov ing caps on e at a time. The electr olyte l evel sho uld be at l evel in dicated. U se distil led water to fill each c ell if neede d. Install and tighten each cap after checki ng. IMPORT ANT : W hen disti lled water i s added to bat tery dur[...]

11 - 37 T o jump start th e battery: 1. Ensure batte ry is not fro zen. If the flui d is frozen, remov e battery from unit and a llow to thaw before char ging. 2. Connect the posit ive (+) jum per cable to the positive (+) terminal o f the discha rged battery . 3. Connect the other end of the same jumpe r cable to the pos itive (+) termina l of the[...]

11 - 38 Ignition Switch NOTE: Refer t o the wiring diagram of the unit involved to deter mine switch function s and tes t using th e meth- ods de scribed . The igniti on switch incorpo rates a numbe r of functions, althoug h not all f unctions ar e used on all equipme nt. The switch has three positions: OFF , RUN, and a momentar y contact S T ART p[...]

11 - 39 1 1.6 LIGHTING CIRCUITS Lightin g circ uits are s imple ci rcuits an d easies t to troubl e shoot in mo st equipm ent. They c onsist of th e lights connect ed in par allel; a normally o pen sw itch, a protec tive fuse an d a sour ce of power ( battery or engine alte r nato r). If on ly one light is out, chec k the c onnector , then check th[...]

11 - 40 STEP 1 Check out the batte ry . Usin g a hydrome ter on al l the battery cells to see if one or more is ba d. Also use a voltme ter to chec k for prope r voltag e. Replace the battery if necess ary and/or charge to p roper level. Refer to Ba ttery . STEP 2 Use a v oltmeter to make s ure you ha ve batter y voltage to te rm inal ( B ) o n th [...]

11 - 41 2 sets of contac ts, one no rmally ope n, one normal ly close d. Contact res istance i s 0.1-0.3 ohm s when co rrect. Normal ly open con tacts man ually activa ted. Con tact Resis tance is 0.1 -0.3 ohms whe n correc t. Normal ly open con tacts man ually activa ted. Con tact Resis tance is 0.1 -0.3 ohms whe n correc t. Pins 8 5-86 co il resi[...]

11 - 42 Normal ly open con tacts (big terminals ) coil resi stance 3 .0-5.0 ohms. Contact resistance is 0.1-0 .3 ohms when correct. Ele ctrically activ ated. Coil Resi stance ch eck clut ch spec ificati ons. Normal ly closed co ntacts me chanicall y activated . Contact res istance 0.1- 0.3 ohms. Used on mod els 91501 3, 014, 015, 106, 306, 30 7. So[...]

11 - 43 1 1.1 1 WIRING DIAGRAMS 87a 30 86 85 87 30 86 85 87 WHITE / BLACK ENGINE BRO WN KEY SWITCH 1 2 BRO WN / YELLOW BLACK RED / VIOLET SEA T SWITCH 12 PINK BLACK PURPLE MAGNET O KILL RED HOUR METER BLACK PURPLE / WHITE SEA T / PTO RELA Y RIGHT HAND NEUTRAL SWITCH FUSE 30A PTO CLUTCH 1 2 PT O SWITCH 4 3 9 1 7 ST ART RELA Y REGULA TOR FUEL SOLENIO[...]

11 - 44 1 1.12 RELAYS AND SWITCHES The diagrams belo w show the v arious states of connection for electrical components. The solid lines on switches sho w continuity . NO TE: All switches are vie wed from the rear. Ke y Switch (03602300) PTO Switc h (01545600) Seat Switch (03654200) Brake Switch (03657100) Neutral Switch (01526100) 1 2 ENGAGED (but[...]

12 - 45 12.1 42" MOWER SPINDLE REMO VAL 1. With th e mower de ck remove d from the un it the disasse mbly of th e mower may be done. 2. Remove the mowe r spind le co ver s . 3. Remove the mower deck blad es hardwar e, mower deck b lades, blad e trays re tainer hub, s pindle key and bear ing sling er . 4. Loosen belt idle r pivot and slott ed i[...]

12 - 46 12.2 48" MOWER SPINDLE REMO VAL With th e mower de ck remove d from the un it, the disasse mbly of th e mower may be done. 1. Remove the right and left side mower spin dle cover . 2. Remove the mower deck blad es hardwar e, mower deck b lades, blad e trays re tainer hub, s pindle key and bear ing sling er . 3. Remove the mowe r dec k s[...]

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