MTD 640 manual

O PERA T OR’S M ANU AL IMPORT ANT : READ SAFETY RU LES AND INSTRUCTIONS CAREFULL Y MTD PRODUCTS INC. P .O . BO X 368022 CLEVELAND , OHIO 44136-9722 Warning: This un it is equipped with an int ernal combustion engine and should not be us ed on or near any unimproved forest- covered, brush-c overed or grass-cove red land unless the engine’s exhau[...]

2 TABLE OF CONTENTS Content Page Important Safe O peratio n Prac tices .............. ............. ............ ............. ............. .. 3 Assemblin g Your Snow Thrower ...... ............. ............. ............ ............. ............... 5 Know Your S now Thrower ... ............. ............. ................... ............. ....[...]

3 SECTION 1: IMPORTANT SAFE OPERATION PRACTICES This symb ol point s out imp ortant safe ty inst ruction s which, if no t followe d, could end anger the persona l safety and/ or proper ty of yo urself and others. Rea d and foll ow all instr uctions in this manual befor e attempting to operate this machi ne. Failu re to compl y with these instruc ti[...]

4 4. N eve r oper ate w ith a miss ing o r dam age d dis char ge chute. Ke ep all safety devices in pl ace and work ing. 5. Never run an eng ine indoors or in a poorly ventil ated area. Engine ex haust contains carbo n monoxide, an odorless and deadly gas. 6. Do not operate machin e while under the influence of alcohol or drugs. 7. Muffler and engi[...]

5 SECTION 2: ASSEMBLING YOUR SNOW THROWER Unpacking • Remove s taples or break glue on the top fla ps of the carton . Remove any loose pa rts in cluded with unit (i.e., Op erator’ s Manual, etc ). • Cut alo ng corners and lay en d of carton do wn flat. Remove pac king material. • Roll unit out of carton. Ch eck c arton thor oughly for loose[...]

6 Final Adjustments Skid Shoes The spa ce b etween the sha ve plat e and the gr ound can be adj usted. For close s now remova l, plac e skid shoes in the low posi tion. Use middle or hi gh positi on when area to be clea red is uneven . • Adjust s kid sh oes by loosen ing the fou r hex nu ts and car riage bol ts and mov ing sk id shoes to desired [...]

7 SECTION 3: KNOW YOUR SNOW THROW ER WARN ING: B e familiar with a ll controls and thei r prope r operation. Know how t o stop th e machine an d disengage them quickly. Oper ating Controls Figure 6 Shift Lever The shi ft lever i s located i n the cente r of the handl e panel. T he shift lev er may be mo ved into one of eight positions . Run engine [...]

8 SECTION 4: OPERAT ING YOUR SNOW THROWER Before Starting WARN ING: Read, u nderstan d, and follow all ins tructio ns and warnings on the mach ine and in this manual befor e operatin g. • The spark plug wire was disconnecte d for safety. Attach spa rk plug wire t o spark plug before sta rting. Gas And Oil Fill-up WARNING: Use extreme c are when h[...]

9 T o Stop Engine • To stop engine, rem ove the ig nition key . Do not turn key. D isconne ct the spar k plug wire from the spark plug to pre vent accide ntal sta rting wh ile equipmen t is unatte nded. To prevent starter freeze-up : • Run engine for a few min utes bef ore stoppi ng to help dry off any moistur e on the engine. • Electr ic Sta[...]

10 • With the tr actio n control released , there must be cleara nce between th e friction wheel and the drive plate in all position s of the shift le ver. • With t raction contro l en gaged, the frict ion wh eel must conta ct the drive pl ate. See Fig ure 9. Figure 9 If adjustme nt is neces sary: • Loosen th e jam nut on th e traction drive [...]

11 SECTION 6: MAINTAINING YOUR SNOW THROW ER WARN ING: Before se rvicing, repair ing, or ins pecting, disengag e all clutch lever s and st op engine. W ait un til all m oving par ts have come to a com plete st op. Disconn ect spark pl ug wire and grou nd it again st the engine to pr event un intended s tarting. Lubrication Chute Directiona l Contro[...]

12 SECTION 7: SERVICING YOUR SNOW THROWER WARN ING: Before se rvicing, repair ing, or ins pecting, disengag e all clutch lever s and st op engine. W ait un til all m oving par ts have come to a com plete st op. Disconn ect spark pl ug wire and grou nd it again st the engine to pr event unin tended s tarting. Augers The augers are secured to the spi[...]

13 Figure 16 Drive Belt • Foll ow steps 1 thr ough 4 of pre vious ins tructio ns. • Pull id ler pulle y up, and l ift belt off e ngine pull ey and f riction w heel disc. See Fi gure 15 . • Back ou t the stop bolt un til the supp ort bracket rests on the auger pul ley. See F igure 17. • Slip belt bet ween fri ction whee l and fric tion whee [...]

14 SECTION 8: OFF-SEASON STORAGE WARN ING: Never st ore engin e with fuel in tank in doors or in enc lose d, poorly ventila ted areas wher e fuel fumes may reach a n open flam e, spark or pilo t light as on a furna ce, water heater, c lothes dry er, or othe r gas appli ance. • If u nit is to be store d over 30 days, p repare the engin e for stora[...]

15 SECTION 10: PARTS LIST FOR MODEL 640 REF . NO . PA R T NO . DESCRIPTION 1 618- 012 3 RH Red ucer Ho usin g 2 618- 012 4 LH Re duce r Hou sin g 3 710-06 42 Hex Screw 1/ 4-20 x .75 4 711 -090 8 Sp ir al Ax le 2 4" 711-0909 Spiral A xle 26" 711-0910 Spiral A xle 28" 5 714- 016 1 Key 6 715- 014 3 Pin -Spi ral 7 717- 0528 W orm Ge ar, [...]

16 Model 640 37 52 43 42 45 42 18 46 25 49 7 42 45 5 12 49 4 55 64 25 25 8 10 14 41 19 40 7 59 67 12 40 30 42 39 12 20 14 38 24 58 45 35 2 15 45 15 25 53 61 54 25 34 43 60 69 33 46 66 29 6 62 43 16 17 42 1 25 55 65 56 52 20 ITEM #21 GOES T O GROUND WIRE OF LIGHT ASSEMBL Y 12 57 56 11 36 21 44 44 32 28 51 63 25 23 22 3 30 31 9 9 31 48 48 68[...]

17 Model 640 REF . NO . PA R T NO . DESCRIPTION 1 625- 000 7 Light As s ’ y, Top Mount 2 684-00 08A Shift Arm Ass ’ y. 3 705-52 04A Chute Crank Ass ’ y. 4 684-00 36 Han dle Ass ’ y - Engage ment R.H. 5 684-00 37 Han dle Ass ’ y - Engage ment l.H. 6 684-01 03 Handl e Panel Ass ’ y 7 710-04 58 Car riage Bolt 5/16 -18 x 1.7 5 ” 8 710-02 [...]

18 Model 640 1 1 2 3 4 4 5 5 6 16 ” Wheel s 13 ” or 1 5 ” Wheels 4 7 7 8 9 10 10 11 11 12 1 5 13 14 15 16 17 18 1 19 20 21 22 23 24 25 25 26 28 29 26 1 1 30 31 32 33 34 8 35 Drive Clut ch Cable Auger Clu tch Cable Auger Clut ch Cable Blow er Housing 36 20 20 37 37 38 39 40 27[...]

19 Model 640 REF . NO . PA R T NO . DESCRIPTION 1 710-1652 He x Screw 2 784-568 8 Drive C ab le Guid e Brack et 3 784-5687A A uger Clutch Cab l e Br acke t 4 756-0625 Rolle r Cable 5 738-0924 He x Screw 1 /4-28 6 684-003 0 F rame Assemb ly 7 741-0563 Ball Bear ing 8 736-010 5 Bell W asher 9 712-011 6 Lock J am Nut 10 741-0598 He x Flange Bea r ing [...]

20 Model 640 REF . NO . PA R T NO . DESCRIPTION 1 710- 1652 He x W asher Scre w 1/4-20 x .62 5 2 731- 1324 Belt C over 3 7 32-071 0 Ext ension Sp r ing 4 710- 0627 He x Screw 5/ 16-24 x .75 5 710- 3005 He x Cap Scre w 3/8-16 x 1 .25 6 0589 6A Driv e Clutch Idler Brac ket 7 748- 0234 Shoul der Spacer 8 7 56-098 7 Pulle y Half 9 754- 0346 V -Belt 10 [...]

21 Model 640 1 2 3 4 5 6 7 8 9 10 11 12 14 15 13 16 10 9 18 19 20 21 22 23 13 25 23 22 26 18 27 28 13 30 30 31 32 31 32 33 16 18 35 36 37 38 39 41 40 42 43 40 39 44 45 34 REF . NO . PA R T NO . DESCRIPTION 1 712-0116 Lock Jam Nut 3/8-24 2 756-0178 Flat Id ler 3 784-5632 A Aug er Idler Arm 4 710-0459 A Hex Cap Screw 3/8-24 x 1.50 5 738-0281 Should e[...]

22 YOUR NOT ES Date Comment[...]

23 YOUR NOT ES Date Comment[...]

MANUF A CTURER ’ S LIMITED W ARRANTY The limited warran ty set f or th belo w is give n by M TD PR ODUCTS INC ( “ MTD ” ) with respec t to ne w merchandise purchas ed and used i n the United S tates, its p ossessions and territories . MTD w arrants this pr oduct against def ects in material and workma nship for a period of tw o (2) years comm[...]