MTD 770-10278 993 manuale d’uso

O PERA T OR’S M ANU AL IMPOR T ANT : READ SAFETY R ULES AND INSTRUCTIONS CAREFULL Y MTD PRODUCTS INC P .O . BO X 368022 CLEVELAND , OHIO 44136-9722 Mode l Ser ies 993 Sno w Thro wer PRINTED IN U.S .A. FORM N O . 770-10278 Warning: This unit is equipped wi th an internal combustion engine and should not be used on or near any unimproved forest- co[...]

2 SECTION 1: FINDING YOUR MODEL NUMBER This Ope rator’s Manua l is an i mportant p art of y our new s now throwe r. It wil l help y ou assem ble, prep are an d maintain your s now thr ower. Pl ease rea d and u nderstan d what it s ays. Before y ou start t o prepare your sn ow thro wer for it s first u se, pleas e locate th e model plate a nd copy[...]

3 SECTION 3: IMPORTANT SAFE OPERATION PRACTICES WARNING: THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF NOT FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF YOURSELF AN D OTHERS. READ AND FOLLOW ALL INSTRUCTIONS I N THIS MANU AL BEFORE ATTEMPTING TO OPE RATE YOUR SNOW THROWER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS[...]

4 • If the snow throwe r shoul d start to vib rate abnorma lly, s top the en gine a nd che ck immedi ately for the caus e. Vibrati on is genera lly a warni ng of trou ble . • Stop engi ne whene ver you leav e the operati ng positio n, befo re unclog ging th e collec tor/im peller housin g or di scha rge guide, and m aking a ny repairs, adj ustm[...]

5 SECTION 4: SET-UP INSTRUCTIONS Figure 3 Figure 4 Figure 5 NOTE: Reference to right or left side of the snow thrower is from behin d the u nit in the ope rating positio n. IMPORTANT: Chec k the adj ust ments as instru cted on page 6 , an d make a ny fi nal adju stmen ts nece ssar y befo re opera ting your sno w thrower . Failure to follow the inst[...]

6 Figure 6 11. If not alr eady att ached, slip th e cables that ru n from the handle panel to the chu te into the ca ble guide loc ated on top o f the engin e. See Figu re 6. 12. Unwrap the headli ght wire which is attach ed to the headli ght, be neath th e handl e panel. W ind the headl ight wi re aro und th e right handle until excess sla ck is r[...]

7 SECTION 5: CONTROLS Figure 10 SHIF T LEVER (See Fig ures 10 a nd 11) The shift le ver i s located in the c enter of the ha ndle panel . The s hift le ver may be moved i nto one of eigh t posi tions. Ru n engine wi th thr ottle in th e fast posit ion. Use the s hift leve r to de termine ground speed. Forward— one of six speed s. Pos itio n numbe[...]

8 SECT ION 6: OP ERATIO N NOTE: This unit has been s hippe d with oil in th e engine. Ch eck oil be fore starti ng engi ne. GAS AND OIL FILL-UP Check oi l level and add oil if necessa ry. S ervic e the engin e with ga soline as in structe d in the se parate engine ma nual pac ked with y our snow thr ower. Read instru ctio ns car efull y. WARN ING: [...]

9 T O ST OP ENGINE 1. Run engine for a few minutes before stopp ing to help dry o ff any m oistu re on the engine . 2. To help prevent possi ble free ze-u p of sta rter, proceed as follow s: Optional Elect ric Starte r Con nect power co rd to switch bo x on engi ne, then to 120 volt A C recepta cle. With the e ngine r unning, p ush st arter button [...]

10 SHIFT ROD AD JUSTMENT To adjust the s hift rod, re move the cott er pin whic h secures the sh ift rod t o th e shift l ever. For proper adjustm ent, ref er to FINAL ADJ USTME NTS on pag e 6. SKID SH OE A DJUS TME NT The space be tween the s have plate and the groun d can be adjusted . Refer to Ski d Shoe A djustmen t (See Fig ure 8) on p age 6. [...]

11 SECTION 9: MAINTENANCE WARN ING: Disconnect the spark plug wire and ground a gainst the engine before performing any repairs or maintenance. AU G E R S The au gers a re sec ured to the spir al sha ft with two shear bolts and hex lock nu ts. S ee Figure 16. If you hit a for eign obj ect o r ice jam , the s now throwe r is designe d so th at the s[...]

12 Figure 18 Figure 19 Figure 20 8. Separate the auge r housin g from the fr ame assembl y by til ting th e housin g forwa rd an d pulling up the h andles . 9. U si ng a 1/2 ” wrench remo ve the hex sc rew an d bellevi lle washer from the centr e of the pull ey on the auger h ousin g. Lift the br ake brac ket assembl y out o f the pul ley g roove[...]

13 Changing the Frict ion Wheel The rubber on the frict ion wheel is subje ct to wear and sh ould be ch ecke d after 2 5 hours of operat ion, and p eri odic all y ther eaf ter . Re plac e the fr iction wheel ru bber i f sign s of ex cessiv e wear or crac king are found. 1. Drain the gasoli ne from the snow thr ower, or place a p iece of p lastic un[...]

14 SECTI ON 11: TROUBLE SHOO TING GUIDE Note: For repair s beyon d the mi nor a djust ments above, conta ct your local au thori zed ser vice de aler. T roub le P ossible Cause(s) Corrective A ction Engine f ai ls to sta r t Fuel tank empty , or stale fuel. Block e d fuel li ne. Chok e not in ON pos ition F aul ty spark plug. K ey not in switch on e[...]

15 SECTION 12: Illustrate d Parts Model 993 Ref. No. P ar t N o. Des crip ti on Qty . 1 731-1364 Halog en Lamp Housin g 1 2 710-1240 Phil lips P a n Head Scre w M 4 x 16 2 3 712-0271 He x Sem s Nut 1/4-20 1 4 725-1669 Lamp/L ens Hou sing Ass ’ y1 629-0059 Halogen Light Wire Harness 1 725-1658 #890 H alogen Bu lb 1 6 710-0451 Carriage Bo lt 5/16 -[...]

16 Model 993 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 34 35 36 37 39 39 40 41 42 43 44 45 44 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 64 66 67 70 72 73 74 43 39 48 49 41 48 1 68 75 75 8 8 7 12 13 11 68 65 71 81 79 80 68 68 71 84 85 85 84 86 63 69 62 62 69 63 76 77 78 83 82 83 27 27 72 37 64 66 82 27 27 7 12 12 75[...]

17 Model 993 Ref. No. P art No. Descriptio n Qty . 1 720-0232 Sml Shift Kn ob 2 2 705-5218 Engage Handle RH 1 3 705-5219 Engage Handl L H 1 4 710-0351 P an Head B-tapp Scr # 10 x .5 2 5 710-0599 Hwhd Sf-tap Scr 1/4 -20 x 1/2 L g. 4 6 711-0653 Cle vis Pi n .31 Di a x 1.0 1 7 712-3010 Nut He x 5/16-18 G d 5 6 8 714-0507 Cot-pin 3/32 Dia x 1.0 3 9 732[...]

18 Model 993 8[...]

19 Model 993 Ref. No. P art No. Descriptio n Qty . 1 736-0159 Flat W a sher .344 ID x .87 5 OD 7 2 71 0-301 5 T russ. Hd. Mach. S cr. 1/4-20 x . 75 6 4 736-0105 Belle vil le w asher 6 6 731-0903D 6 ” Low er Chu te Re mot e Ti lt 1 8 784-5711 Chute Br ack e t 1 15 784-5123 Chute Br ack e t 1 16 731-1696 Chute Ada pter 1 17 736-0242 Bell. W asher .[...]

20 Model 993[...]

21 Model 993 Ref. No. P art No. Descriptio n Qty . 1 629-0071 Extension Cord 10 Ft. 1 2 710-0502A Hex L-wa sh Tt S cr 3/8-16 X 1 .25 4 3 710-0607 Hwhd 5/16 -18 X 1/2 Th d Roll Z n 3 4 731-0321-1 Belt Co v er - Pierced 1 5 736-0264 Fl-wash .344 ID X .62 5 OD X .0 63 3 6 712-3006 Nut 1/4-20 GR B He x 1 8 732-0705 Cab le Cont rol Wire 1 9 736-0173 Fl-[...]

22 Model 993 42 43 40 45 22 78 46 63 22 46 41 2 4 3 18 5 6 7 8 9 10 11 16 13 50 14 15 78 16 17 17 1 19 20 12 23 22 22 22 23 24 24 25 26 27 28 71 29 34 34 32 32 33 33 34 35 36 36 37 38 39 38 38 76 47 47 50 19 48 49 49 49 49 50 51 51 52 53 53 54 54 55 80 80 56 53 53 58 57 57 59 60 61 61 62 62 63 64 65 66 67 68 68 69 70 28 72 73 74 75 19 47 56 82 81[...]

23 Model 993 Ref. No. P art No. Descriptio n Qty . 1 05523 Piv ot Axle Brkt. .63 Hole - Z inc 1 2 618-0278 Bush Asm sle v 1 3 618-0279 Dogg Asm D r Lh 1 4 618-0280 Dogg Asm D r Rh 1 5 618-0282A Shf Asm Dr 1 6 618-0296 Whl Asm B rg 6.0 O D F r iction 1 7 684-0115 Brkt Asm Supt F r iction Dr 1 8 684-0116 Ar m Asm Shift 1 9 684-0117 Shft Asm Ro d 1 10[...]

MANUF A CTURER ’ S LIMITED W ARRANTY FOR: The l im ited wa rrant y set for th be low is given by MTD PRODUCTS INC ( “ MTD ” ) with respe ct to ne w merc handise purchase d and used in the Uni ted Stat es , its pos sess ions and ter ritories. MTD war rants this prod uct agains t def ects in material and workman ship f or a period of two (2) y [...]