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MTD Series 521 - page 1
Safety • Assembl y • Operation • Tips & T echniques • Maintenance • T roubleshooting • P ar ts Lists • Warranty Warning : This un it is equi pped wi th an internal c ombu stion en gine and s hould not be u sed on or near any unii proved forest-c overed, brush- covered or grass -c overed land unles s the eng ine’ s exhaus t syste ...
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MTD Series 521 - page 2
2 1. Safety Labels .................................................. 3 2. Safe Operation Practices ........................... 4–5 3. Assembling Y our New Edger ......................... 6 4. Know Y our Edger ............................................ 7 5. Operation and Adjustment ........................ 8–9 T able of Contents 6. Maintainin ...
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MTD Series 521 - page 3
3 1 Safety Labels W ARNING This s ymbol points out important sa fety instructions w hich, if not f ollow ed, could endan ger the persona l safe ty and / or prope r ty of yourse lf and othe rs. Rea d and follo w all inst ructions in this man ual bef ore attempti ng to opera te this machi ne. F ailur e to comply wi th these instructions m ay r esult ...
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MTD Series 521 - page 4
4 2 Safe Operat ion Practices W ARNI NG : E ngine Exhau st, some of its con stituen ts, and certain v ehicle compo- nents con tain or emi t chemicals know n to Stat e of Cal ifornia t o cause cance r and birth defects or oth er repr oductive ha rm. W ARNING This s ymbol points out important sa fety instructions w hich, if not f ollow ed, could enda ...
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MTD Series 521 - page 5
5 2 Safe Operation Practices W ARNING This s ymbol points out important sa fety instructions w hich, if not f ollow ed, could endan ger the persona l safe ty and / or prope r ty of yourse lf and othe rs. Rea d and follo w all inst ructions in this man ual bef ore attempti ng to opera te this machi ne. F ailur e to comply wi th these instructions m ...
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MTD Series 521 - page 6
6 3 Ass embli ng Y our Ne w Ed ger Securin g the Handle IM PORT AN T: This unit is shi pped WITHO UT GASOLINE or OIL. Af ter set ting up t he unit, s er vice e ngine wi th gasol ine and oil a s instru cted in t he separate eng ine manual pac ked with your unit. NOTE : Reference to righ t or left ha nd sid e of the ed ger i s obser ved from the oper ...
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MTD Series 521 - page 7
7 Figure 4–1 W ARN IN G : B e famili ar wit h all cont rols and th eir pro pe r ope rati on. Kn ow how to stop th e machin e and dis enga ge the m quickly. NOTE : Refer to the Eng ine Ma nual pa cked wit h your edg er for a detai led d escrip tion of a ll eng ine -related cont rols and co mpon ents. Star ter Rope / Recoil Starter The star ter ro ...
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MTD Series 521 - page 8
8 5 Operation And A dj ustmen t W ARNING Do not low er blade if blade is ov er concrete, asphalt, rocks or the li ke. The blade can strike the supporting surface, resultin g in personal inju r y or proper ty damage. Never f ill fuel tank indoors, with engi ne runn ing or unti l the engine has been allo wed to cool for at least two minu tes after ru ...
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MTD Series 521 - page 9
9 5 Operation And A dj ustmen t W ARNING Disconnect the spark plug w ire and ground agai nst the Disconnect the spark plug wi re and ground against the engi ne before per formi ng the foll owing s teps. The edger blade is sharp. W ear le ather wor k glov es to protect yo ur hands when wor king around the edger blade. NO TE: Spe cifi cation s are su ...
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MTD Series 521 - page 10
10 6 Main tain ing & Ser vic ing Y our E dger W ARNING Disconnect the spark plug wi re and ground against the engi ne before per formi ng any ad justment, repairs or mainte- nance. The edger blade is sharp. W ear leather work glo ves to protect y our hands when wor king around the edger blad e. Disconnect the spark plug wi re and ground against ...
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MTD Series 521 - page 11
11 Replacing the Dri ve Belt IM PORT AN T: T o aid i n reassem bly , note t he orient ation of the dri ve belt on the t wo idl er pulleys and the e ngine fly wheel pul ley prior to per formi ng the foll owing steps. Refer to Fig. 6 – 3. The edg er drive belt i s subje ct to wear and shou ld be replac ed if any sign s of crack ing, shred ding or r ...
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MTD Series 521 - page 12
12 7 Of f-S easo n Sto rage Of f-Se ason St orage Obser ve the fo llowing whe n preparing t he edg er for long -term storage : 1 . Clean and l ubric ate unit thoro ughly as i nstruc ted maintenan ce sec tion of th is manual. 2. Refer to the Engine M anual packed se parately with th e edger for en gine manu facturers’s storage ins truc tions. 3. C ...
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MTD Series 521 - page 13
13 8 T r o u b l e s h o o t i n g G u i d e Problem En gine fails t o star t En gine runs err atic En gine Ove rheats Correctiv e Action Refer to th e Engin e Manu al pac ked wit h your uni t. Push pr imer bu lb t wo or thr ee tim es. Fill t ank wi th cl ean, fre sh gas oli ne. Drain gasoline and refill tank with clean, fresh gasoline. Con nec t t ...
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MTD Series 521 - page 14
27 24 16 22 1 19 14 48 50 5 6 4 3 5 8 4 2 5 7 5 8 5 5 5 4 4 7 5 2 5 3 4 9 4 0 6 0 15 21 21 19 5 20 26 25 31 30 24 34 33 37 18 23 29 17 36 39 28 38 35 32 A A 9 12 11 4 4 3 10 13 2 8 7 6 61 46 41 51 45 5 9 4 4 ...
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MTD Series 521 - page 15
15 9 V-BEL T S are spe ciall y desig ned to engag e and diseng age safely . A subst itute ( non- O EM ) V-Belt ca n be dang erous by not disen gaging c ompl etely . † Opti onal NO TE: Spe cifi cation s are subje ct to cha nge wit hout notifi cation or o blig ation. Images my not refle ct your exact mode l and are for reference pur poses o nly . R ...
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MTD Series 521 - page 16
The limi ted warranty s et fort h below is gi ven by MTD LLC with respec t to new merchan dise purc hased an d used in t he United St ates, its posse ssion s and territor ies. “ MTD” warrant s this pro duc t against d efects in m aterial and work man- ship for a per iod of t wo ( 2) years c ommen cing on t he date of orig inal purcha se and wil ...
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