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Manual MTD 663

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  • MTD 663 - page 1

    Snow Thrower Model s 643 & 663 IMPORT ANT : READ SAFETY RULES AND INSTRUCTIONS CA REFULL Y MTD LL C P .O . B O X 36 11 31 CL EVEL AND, OHIO 44 136-0 01 9 Wa rn in g: This uni t is e quip ped wit h an i nter nal com bust ion en gin e and sh ould not be use d on or near an y un impr oved for est- cov e red , bru sh -c overe d or gras s -co ver ed ...

  • MTD 663 - page 2

    2 TAB LE O F CON TEN TS Conten t Page Import ant Sa fe Ope ratio n Pract ices ..... ..... .... ... .... ..... ..... .. ..... ..... .... ... ..... .... ..... .. . 3 Assembl ing Yo ur Snow Thrower .... ..... .. ..... ..... .... ... ..... .... ..... ..... .. ..... ..... .... ... .... . 5 Know Yo ur Sno w Thrower .. ..... ..... .. ..... ..... .... ... ...

  • MTD 663 - page 3

    3 SECT I ON 1: I M PORT AN T SAF E O PER ATI ON PR AC TICE S This symbol poin ts ou t i m portant safety instructions, which if not followed, co uld endanger the personal safety and/or property of yourse lf an d others. Read and foll ow all i n structions in this manual before attempting to operat e this m achine. Failure to comp ly wi th these ins ...

  • MTD 663 - page 4

    4 4. Never oper ate wi th a missi ng or damag ed disch arge chute . Keep al l safety devic es in place and wo rking. 5. Never ru n an engi ne indoo rs or in a poorly ventila ted area. Engine exhaust contains ca rbo n monoxide , an odorl ess and d eadly ga s. 6. Do not ope rate mach ine whi le under t he inf luence of alcoh ol or drugs. 7. Muffle r ...

  • MTD 663 - page 5

    5 SECTION 2: ASSEMBLING YOUR SNOW THROWE R NOTE: References to right or l eft side of the snow thrower are determined from behind the unit i n the operating position. The “operator’s position” is defined as standing directly behind the s now thrower, facing the handle panel. Un packing • Remove s crews from the top sides and en ds of the sh ...

  • MTD 663 - page 6

    6 SECTION 3: KNOW YOUR S NOW THROWER Fi gur e 5 WARNING: Read , understand, and follow all in structio ns and w ar nings on the ma chi ne an d i n th is man ual bef ore oper ating. T ractio n Control / Au ger Con trol Lock The traction control is locate d on the right handle. Squeeze the traction control to engage the wheel d rive. Release to stop. ...

  • MTD 663 - page 7

    7 Headlight The headlight is on whe never the engine is running. Throttle C ontrol The throttle control is located on the engine . I t regulates the speed of the eng ine and will shut off the engine when pushe d down completely. See F igure 5. Clean -Ou t T o ol The chute clean -out tool is fastened to the top of the auger housing with a mou nting ...

  • MTD 663 - page 8

    8 Recoil Starte r • Rotate choke kno b to FULL chok e position (cold engine sta rt). I f engine is warm, place choke i n OFF positio n instead of FULL. • Push primer button t wo or three times. If engine is warm, pus h primer b utton once only . NOTE: A lways cover vent hol e in pri mer button whe n pushing. Additiona l priming may be necess ar ...

  • MTD 663 - page 9

    9 Fi gur e 6 Chut e Clean- Out T ool The chut e clean-out tool is convenient ly fastened t o the rear of the auger hous ing with a mounting clip. Should snow and ice lodge its elf i n the discharge chute during operation, proceed as fo llows to safely clean the chute and chute openi ng: • Release both the A uger Control Lever an d the T r act ion ...

  • MTD 663 - page 10

    10 SECTION 5: MAKING ADJUSTMENTS WARNING: N EVER a t temp t to make any adjustmen ts while the engin e is running, except whe re specified in the operato r ’ s manual . Ti re P res s u re (Pne u matic Tires) • The tires are overinflated for shippin g purposes. Before operat ing check tire pressure and reduc e pressure to bet ween 15psi and 20 p ...

  • MTD 663 - page 11

    11 Shift Rod A djustment To adjust the shift rod, proceed as fo llows: • Remove th e hairpin clip and slide the shift rod conn ector up, to separate the upper shift rod from the lower shift rod. See F igure 10. Figu re 10 • Place the shift lever into the sixth (6) position. • Rotate the shift arm clockwise (from t he operator ’ s position) ...

  • MTD 663 - page 12

    12 wheel hub.This position gives p ower drive to the left wheel only, ma king the unit easier to maneu ver. Both Whe els Drivin g • Rotate whee l assembly to alig n hole in t he hub wi th the inner hole on the ax le shaft. Insert klick pin in the hol e. Outer axle shaft hole should be v isible. IMPORT ANT: NEVER o perate the snow thrower with the ...

  • MTD 663 - page 13

    13 Tractio n Control / Auge r Co ntrol Lock The cams on th e ends of the control rods which interlock the traction drive and aug er d rive controls must be lubricated at least once a season or every 2 5 hours of o peration. T he cams can be accessed benea th the handle panel. Use a multi-purpose auto motive grease. Drive and Shifting M echanis m Lu ...

  • MTD 663 - page 14

    14 • Drain the gasoline from the s now thrower, or place a piece of pl astic film under the gas cap. • Tip the snow thrower up and f orward s o that i t rests on its auge r housing. • Remove th e six self-tapping screws from the frame cover unde rneath the snow thrower. • Roll the front and rear auger bel ts of f th e auger drive p ulley. S ...

  • MTD 663 - page 15

    15 Figu re 20 • Remove th e four screws from the friction wheel assem bly. Remove the friction wheel rubber from betwee n the friction wheel plates. See Fi gure 21. • Reassem ble the new friction wheel rubber to the friction wheel p lates and hub, tighten ing the six screws in rotation and with equal force. • Position the f riction wheel ass ...

  • MTD 663 - page 16

    16 SECTION 8: TROUBLE SHOOTING NOTE: For repairs beyond the mi nor adjustments abo ve, contact your local autho r i zed service dealer. T rouble Possible Cau se( s) Co rrec tive Act ion Engine f ails t o star t Fuel ta nk empty, or st ale fuel . Blocked fuel li ne. Choke not in O N positi on Faulty spark p lug. Key not i n swit ch on engine . Spark ...

  • MTD 663 - page 17

    17 2 12 4 6 7 10 9 14 11 8 16 1 3 15 Models 643 & 663 5 13 3 17 Ref. No. P ar t No. Part Description 1. 618-01 23 RH Housing 2. 618-01 24 LH Housing 3. 71 0-0642 Self T apping Scre w , 1/ 4-20 x .75 4. 711-09 10A Spir al Ax le, 28 ” 5. 714-01 61 Hi-Pr o Ke y , 3/16 x 5/ 8 6. 715-01 43 Spring Spi ral Pin, .25 x 1.2 5 7. 71 7-0528 W orm Gear , ...

  • MTD 663 - page 18

    18 Models 643 & 663 14 10 2 14 12 16 3 20 60 63 67 65 55 54 8 17 11 22 21 18 4 1 11 15 19 7 14 53 59 68 69 69 27 82 70 72 72 73 27 68 71 74 27 56 64 76 77 78 79 11 15 75 81 27 83 80 13 13 42 26 26 48 9 9 49 23 28 14 28 9 41 39 12 43 43 10 26 31 35 38 40 6 6 5 5 24 24 30 32 ...

  • MTD 663 - page 19

    19 Models 643 & 663 Ref. No. Part No . Part Descri pti o n 1. 684-0 008A Shift Ar m Assem bly 2. 710-0 458 Carri age Bolt 5/ 16-18 x 1.75 ” 3. 710-0 449 Carri age Bolt 5/ 16-18 x 2.25 ” 4. 710-0 788 TT Screw 1 /4-20 x 1 ” 5. 712-0 429 Hex L ock Nut 5/16 -18 6. 746-0 778 Z Fit ting Ca ble 7. 710-1 880 Hex S crew 5/16-18 x .75 ” 8. 711-0 ...

  • MTD 663 - page 20

    20 Mode ls 643 & 663 1 2 3 4 5 6 7 8 9 10 11 12 14 15 13 16 10 26 18 27 28 13 30 31 32 33 16 18 35 34 36 37 38 39 41 40 42 17 40 39 29 24 9 19 30 31 50 51 52 49 48 47 43 44 ...

  • MTD 663 - page 21

    21 Mode ls 643 & 663 Ref. No. P ar t No. P art Descr iption 1. 712-0116 L ock Jam Nut 3/ 8-24 2. 756-0178 F lat I dler 3. 784- 5632B Auger Idler Ar m 4. 710-0459A He x Cap Scr e w 3/8-24 x 1.50 5. 738-0281 Sh oulder Screw 6. 736-0167 W ave Washer 7. 732-0611 Ex tensi on Spring 8. 712-3068 He x Nut 5/ 16-18 9. 710-0276 Ca rria ge Bolt, 5/ 16-18 ...

  • MTD 663 - page 22

    22 Mode ls 643 & 663 1 2 3 4 5 6 7 4 8 9 10 11 12 13 14 15 16 17 18 19 19 16 16 16 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 IMPORTANT: For a prop er working machi ne, use Facto ry Approved Par ts. V-BELTS are spec iall y designed to engage an d dis engage safel y. A substitu te ( non OEM) V -Belt can be danger ous by not di sengagi ng co ...

  • MTD 663 - page 23

    23 Mode ls 643 & 663 Ref. No. P art No. Part Description 1. 710- 1652 Hex Was her Screw 1/4 -20 x . 625 2. 731- 1324 Belt Co ver 3. 732- 0710 Extensi on Spring 4. 710- 0627 Hex Screw 5/16-24 x .75 5. 710- 3005 Hex Cap Scr ew 3/8-1 6 x 1.25 6. 0589 6A Dr ive Clutch Idler Br acket 7. 748- 0234 Shoulder Spacer 8. 756- 0987 Pulle y Half 9. 754-0346 ...

  • MTD 663 - page 24

    24 Models 643 & 663 1 1 2 3 4 4 5 5 6 16 ” W heel s 13 ” or 15 ” Whee ls 4 7 7 8 9 10 10 11 11 12 41 5 13 14 15 16 17 18 1 19 20 21 22 23 24 25 25 26 28 29 1 1 30 31 32 33 34 8 35 Dri ve Cl utch Cable Au ge r Cl ut ch Cable Auger Clutch Cable Blo wer Housi ng 36 20 37 38 39 40 27 42 42 42 43 44 45 46 ...

  • MTD 663 - page 25

    25 Mode ls 643 & 663 Ref. No. P a rt No. P a rt Description 1. 710-0599 Hex Scr ew 2. 784-5688 Driv e Cabl e Guide Bra ck et 3. 784-5687A Auger C lut ch Cabl e B rac ket 4. 756-0625 Roller C ab le 5. 738-0924 Hex Scr ew 1/4- 28 6. 784-5630B F rame Ass emb ly 7. 741-0563 Ball Bearing 8. 736-0105 Bell W ash er 9. 712-0116 Loc k Jam Nut 10. 741-05 ...

  • MTD 663 - page 26

    26 Notes ...

  • MTD 663 - page 27

    27 ...

  • MTD 663 - page 28

    MANUF A C TURER ’ S LIMITED W ARRANTY FOR: The l imited w arran ty set f or th belo w is giv en by MTD LLC wi th respec t to new merc handise purcha sed and used in th e Unit ed Stat es, its po ssessions and te rritories. MTD LLC warrant s thi s product ag ainst def ects f or a peri od of two (2) year s com m e ncing on the date of original purch ...

Manufacturer MTD Category Snow Blower

Documents that we receive from a manufacturer of a MTD 663 can be divided into several groups. They are, among others:
- MTD technical drawings
- 663 manuals
- MTD product data sheets
- information booklets
- or energy labels MTD 663
All of them are important, but the most important information from the point of view of use of the device are in the user manual MTD 663.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals MTD 663, service manual, brief instructions and user manuals MTD 663. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product MTD 663.

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A complete manual for the device MTD 663, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use MTD 663 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of MTD 663.

A complete MTD manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual MTD 663 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the MTD 663, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the MTD 663, that we can find in the current document
3. Tips how to use the basic functions of the device MTD 663 - which should help us in our first steps of using MTD 663
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with MTD 663
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of MTD 663 in a specific country, if it was not possible to solve the problem on our own.

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