MTD 420 Series manual

MTD LLC, P .O . BO X 361131 CLEVELAND , OHIO 44136-0019 1 1/1 3 / 200 6 FORM NO. 769- 02850 21” Rotary Mo wer — Model Series 420 Safety • Assembl y • Operation • Tips & T echniques • Maintenance • T r oubleshooting • P ar ts Lists • Warranty Warning : This unit is equ ippe d with an i nternal co mbust ion en gine an d should n[...]

2 Finding and Recor ding Model Number T able of Contents BE FOR E Y OU BE GIN T O AS SEMBL E Y OU R NEW E QUIP MEN T , please locat e the model pla te on th e equipm ent and cop y the inf orma tion to the sa mple model pla te pr ovided t o the right. Y ou can loca te the model pla te b y standing a t the oper ating pos ition and looking do wn at th[...]

3 1 Slope Gauge W ARNING Do not mo w on inclines with a slope in e xcess of 1 5 degrees (a rise of appro xima tely 2 - 1/ 2 fee t ev ery 1 0 fee t ). Ope ra t e W A LK -BE HI ND mow ers across the face o f slopes, ne ve r up and dow n slopes. 3IGHTANDHOLDTHISLEVELWITHAVERTICALTREE ORACORNEROFABUILDING[...]

4 2 Safe Operat ion Practices Children T ragic accidents can occur if operator is not aler t to presence of children. Children are often attracted to mo wer and mowing activity . They do not understand the dangers. Ne ver assume that children will remain where you last sa w them. 1. K eep children out of the mowing area and under watchful care of a[...]

5 1 9. Shu t the e ngi ne of f an d wait unt il t he bl ade c ome s to a com pl ete stop b efore r emovi ng th e gra ss c atch er or un clo g- ging t he c hute. The c ut tin g blad e co nti nues t o rotate fo r a few sec ond s af ter the e ngin e is sh ut of f. Never plac e any par t o f the b od y in the b lade a rea unt il you are s ure th e blad[...]

6 3 Setup and Adjustment IM POR T ANT: This unit is s hipp ed wi thout g asol ine or oil in th e engin e. Fill up g asolin e and o il as inst ruct ed in the a ccom panying en gine m anual B EFOR E ope rat- ing your mower. 1 . Remove any packing materi al whic h may be bet ween upper an d lower handl es. a. Pull up and b ack on up per han dle as sh [...]

7 5. Follow steps be low to assem ble th e grass c atcher (i f neede d ) . Make cer tai n bag is turne d right s ide out before ass embli ng (warn ing lab el will be o n the outsi de ) . a. Place bag over frame so th at its blac k plast ic si de is at the bot tom. b. Sli p plast ic ch annel of gra ss bag over hooks on the frame. See Fi gure 3 - 5. [...]

8 4 Operating Y our Lawn Mo wer Blade Control The blad e contro l is at tach ed to the up per han dle of the mower . Depres s and squ eeze it against th e upper handl e to operate th e unit. Re lease it to s top engi ne and blade. W AR NI NG : Thi s bla de co ntrol i s a safe ty device . Never at te mpt to bypa ss its o pe ra - tions . Cutting Heig[...]

9 W AR NI NG : I f you strike a for eign o bje ct , stop th e engin e. R emove wire fr om th e spark p lug, t horou ghly ins pe ct mowe r for any dama ge, a nd re pair d am age b efor e re sta r ting and op er ating . Ex te nsive vibr atio n of mower d uring ope rat ion is an i ndica tion o f dam age . The uni t should b e pro mpt ly insp ec ted a [...]

10 5 Maintaining Y our Lawn Mo wer W ARNING Alwa ys st op engine, disconnect spark plug, and grou nd against eng ine before per formin g and typ e of maint enance on the mower . IM POR T ANT : Do not use a pressure washer or g arde n hose to cl ean your unit. These may cause d amage to elec tric c omp onent s, spind les, pul leys, bear - ings, or t[...]

11 Figure 5-3: Removing the rear flap . 5 Maintaining Y our Lawn Mo wer W ARNING When remov ing the cutting blade for sharpenin g or replacement , protect yo ur hands with a pair of heavy glo ves or use a heavy rag to hold the blade. An unbalanced blade will ca use ex cessive vibration when ro tat- ing at hi gh spe eds. It may cau se damage to mo [...]

12 For repairs bey ond the minor adj ustments listed here, contact an authorized service dealer . 6 T r oub le Shooting Cause Pr oblem Remed y Engine fails to st ar t Engine run s erratic 1 . Con nec t and t ig hten sp ark pl ug wir e. 2. Clea n fuel l ine ; fi ll ta nk wi th c lean, fresh g aso lin e. 3. Clear ven t. 4. Drai n fuel t ank . Refi ll[...]

13 7 Safety Labels W ARNING DO NOT remov e safety (or any) labels from mower f or any reason. Safety Labels Found On Y our Lawn Mo wer T O N O D , Y R U J N I F O K S I R E H T E C U D E R O T S S E L N U E T A R E P O R O R E V O C E G R A H C S I D A C S S A R G . E C A L P R E P O R P S T I N I S I R E H C T . Y L E T A I D E M M I E C A L P E R[...]

14 Model Series 420 Wheel T ypes K2 S-Wave Zag Pin Bar[...]

15 8 P ar ts List † If equip ped ‡ Refer to Wheel Char t T y pe Par t No. T read Wheels w / o bear ing 734 - 1 781 , Sl ot Hub Bar 734 - 0421 5, 8 x 1 .8 K 2 Bar 734 - 0421 3, 7 x 1 .8 K 2 Bar Wheels w / BB 734 -200 4A, D isc Hu b Z ag 734 -200 5A Zag ‡ Whe el Ch ar t T o order replacem ent parts , contact 1 - 8 0 0 - 80 0 - 731 0 or visit ww[...]

The limi ted warrant y set for th bel ow is given by MTD LLC with res pec t to new merchan dise pur chas ed and use d in the Un ited States, i ts posse ssio ns and terri tories. “ MTD” warra nts this p rodu ct agai nst defec ts in m aterial and wor kman - ship for a per iod of t wo ( 2 ) years co mmen cing on t he date of ori ginal purcha se an[...]