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The rules should oblige the seller to give the purchaser an operating instrucion of MTD 21A-450 Series, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
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First and foremost, an user manual of MTD 21A-450 Series should contain:
- informations concerning technical data of MTD 21A-450 Series
- name of the manufacturer and a year of construction of the MTD 21A-450 Series item
- rules of operation, control and maintenance of the MTD 21A-450 Series item
- safety signs and mark certificates which confirm compatibility with appropriate standards
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of MTD 21A-450 Series alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of MTD 21A-450 Series, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the MTD service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of MTD 21A-450 Series.
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Table of contents for the manual
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Page 1
IMPOR T ANT : Read saf ety rules and instructions ca refull y befo re operati ng equipment. MTD PR ODUCTS INC P .O . BO X 368022 CLEVELAND, OHIO 44 136-9722 Rear Tine Till er 21A-45 0 Series PRINTED IN U .S.A. Warning: T h is unit is equipped with an internal com bustion engine and should not be used on or near any unimproved forest- covered, brus [...]
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Page 2
2 TABLE OF CONTENTS Cont ent Page Important Safe O peratio n Practi ces .... ............. ............. ................... ............. ..... 3, 4 Loose P arts .................... ............. ............. ................... ............. ............. ........... 5 Assembl ing Yo ur Ti ller ........... ............. ............. ..........[...]
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Page 3
3 SECTION 1: IMPORTANT SAFE OPERATION PRACTICES WARN ING: T HIS SY MBO L POIN TS OUT IMPORT ANT SAFET Y INST RUC TION S WHICH , IF NO T FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY AND/OR PROP ERTY OF YOURSELF AND OTHERS. READ AN D FOLLOW ALL I NSTRUCTIONS IN THIS MANUAL BEFORE ATTEMP TING TO OPERATE YOUR TILLER. FAILU RE TO COMPLY WITH THESE INSTR[...]
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Page 4
4 • If situati ons occu r which are not cov ered by this manual, us e care an d good judg ment. Con tact your deale r for assis tance. CHILD REN • Tragic accidents can occu r if the ope rator is not alert to the pr esence of smal l childr en. Childr en are often attrac ted to the till ing activity . Never assu me that child ren will rema in whe[...]
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Page 5
5 SECTION 2: LOOSE PARTS Handle Assembly Depth Stak e Assembl y Control Rod NOTE: Cable tie not s hown.[...]
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Page 6
6 SECTION 3: ASSEMBLING YOUR TILLER IMPORT ANT: This unit is shipped WITH OUT GA SOLI NE or OIL. A fter asse mbly, se e separat e engine manual for proper fu el and engine oil recom mendation s. NOTE: Left and r ight is determi ned from t he operat or’s position , standi ng behind the tiller. TOOLS REQUI RED FOR ASSEM BL Y Adjusta ble W renche s [...]
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Page 7
7 Figure 4 A TT ACHING THE CLUTCH CABLE Attach the c lutch cab le to the han dle as follo ws (be careful not to k ink the cable). • Remove thr eaded eye bolt and nut from the end of the cabl e. • Route th e clutch ca ble to the rig ht side of t he handle moun ting brac kets and und ernea th the handle. • Push the cabl e through the hole in th[...]
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Page 8
8 Now move the shift lever to FORWA RD (Wheels Forward) position . Careful ly enga ge the clutch by li fting the clutch control ba il agains t the handl e. The wheels should sp in. If the wheels do not spin wit h the unit in forw ard, adjust by unthr eading the tube at the end of the cable a few turns c ounter-cl ockwise , (when st anding in operat[...]
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Page 9
9 CLUTCH CONTROL BAIL The clut ch contro l bail is lo cated be low the han dle. See Figure 7. Liftin g the clutch control bai l agains t the handle e ngages the wh eel and tine dr ive mech anisms . NOTE: Never enga ge clutch l ever whil e shift ing. DEPTH ST AKE The depth ba r controls the tilling depth. Refer to SECTION 5: O PERATIN G YOUR TILLE R[...]
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Page 10
10 Figure 8 • To transp ort tiller, lo wer the de pth stake (us e top adjustme nt hole). • To a djus t th e depth s take, remo ve th e clevis pin and hairp in clip. Se e Figure 8. Mov e the depth stake to the de sired s etting. • To adju st the side s hields, r emove the front wing nut and lo osen the rear wi ng nut. See Figu re 9. Place si d[...]
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Page 11
11 • Remove the belt cover as described i n the belt replaceme nt secti on on page 12. • Remove the hai rpin cli p and spring washe r from the idler pul ley rod. See Figu re 11. • Move the id ler pu lley rod to the lo wer hole in th e idler br acket. Se e Figure 11. • Repla ce t he sp ring wa sher a nd ha irpin clip . • Check c learance o[...]
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Page 12
12 CLEAN ING THE T INE AR EA Clean the unde rside of the tine shiel d after each use. The dirt wash es off the tines easier if washed off immed iately in stead of af ter it drie s. We do not rec ommend the us e of pressur e washers to clean you r unit. They may c ause damag e to electric compo nents, s pindl es, pull eys, bea rings, or the en gine.[...]
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Page 13
13 SECTION 9: OFF-SEASON STORAGE If the tiller wil l not be used for a period lo nger than 30 days, the following steps should be taken to pr epare the tiller for s torage. • Clean t he exter ior o f engine and the e ntire till er thorough ly. L ubricate the ti ller as desc ribed in t he lubric ation inst ructi ons. • We do not re comme nd the [...]
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Page 14
14 SECTION 11: PARTS LIST FOR MODEL 450 SERIES[...]
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Page 15
15 MODEL 450 SERIES REF . NO. P ART NO . DESCRIPTION 1 611-0020 Wheel Shaft Ass ’ y: 33T 2 611-0021 Tine Shaft Ass ’ y: 18T 3 611-0128 Jac k Shaft Ass ’ y 4 611-0129 Input Shaft Ass ’ y 5 617-0058 Rev . Idler Gear As s ’ y: 30T 6 617-0059 Ftine Idler Gear A ss ’ y: 30T 7 617-0060 Tine Input Sprock et Ass ’ y: 9T 8 617-0061 Wheel Input[...]
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Page 16
16 MODEL 450 SERIES 20 18 8 23 10 1 60 61 37 62 25 34 27 64 30 39 27 63 26 32 36 33 31 29 66 26 41 30 30 24 28 35 40 26 49 44 50 59 51 65 53 55 56 54 57 58 44 46 42 4 9 11 16 6 3 14 7 19 5 17 2 60 61 12 15 12 12 38 21 22 67 70 70 68 69[...]
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Page 17
17 MODEL 450 SERIES REF . NO . P ART NO. DESCRIPTION 1 747-115 2 Sh ift Rod 2 649-004 1 Up per H andle Ass ’ y 3 649-003 4 L ow er Handl e Ass ’ y 4 710-300 5 He x Screw 3 /8-16 x 1.2 5 5 710-305 6 He x Screw 5 /16-18 x 3. 25 6 711 -04 15 Clevis Pi n 3/ 8-1. 62 7 712-037 9 Flange Loc k Nut 3/8-24 8 712-042 9 He x Lock N ut 5/1 6-18 9 714 -01 47[...]
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Page 18
18 MODEL 450 SERIES 18 17 24 19 27 46 45 12 26 9 6 18 25 14 28 20 2 11 44 4 22 23 16 5 21 7 13 15 3 40 43 42 41 39 32 33 31 30 29 36 34 37 37 38 35 10[...]
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Page 19
19 MODEL 450 SERIES REF . NO . P ART NO . DESCRIPTION 1 686-0111 Belt Co ver Brkt. Ass ’ y 2 710 -023 7 Hex Bolt 5/ 16-2 4 x .6 2" Lg. 3 710-0 412 Hex Bolt 1/4-28 x . 75" Lg. 4 710-0502 A He x W ash.TT -Sems Screw 3/8- 16 x 1.25 0" Lg. 5 710-0 591 Hex Bolt 3/8-24 x 1.00 6 710-0599 He x Was h. H d. S-T ap Scr . 7 710-0723 He x Cap S[...]
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Page 20
MANUF A CTURER ’ S LIMITED W ARRANTY The limited warran ty set f or th below is give n by MTD PR ODUCTS INC ( “ MTD ” ) with resp ect to ne w merchan- dise pu rchased and used in the United States , its p osses- sions and territories. MTD w arrants this pr oduct against defe cts in material and workma nship f or a period of two (2) y ears com[...]