TEMA: MANTENIMIENTO Y REPARASION DEL TRACTOR ORUGA
MAQUINA: TRACTOR TRA CTOR ORUGA NOMBRE:SAMUEL QUISPE TICONA PROFESOR:JESÚS PROFESOR: JESÚS VILLALOB VILLALOBOS OS PEÑA AULA:A AÑO:2014 MAJES-PEDREGAL
INTRODUCCION En el presente trabajo nos dispondremos a analizar las funcionalidades del buldócer o tractor sobre orugas el cual es un pilar fundamental dentro de la construcción, en lo que es movimiento de tierras para urbanizaciones en general como para labores forestales de construcción de caminos y otros.
MANTENIMIENTO Y REPARASION DEL TRACTOR ORUGA Dentro de los buldócer o tractores tenemos dos tipos:
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Accesorios especia$es para $os tractores %e or#)a e a visto que el tractor con oja topadora y malacate es una m
a a una sensible baja en el rendimiento del tractor.
E?aminaremos rces, (c) descuajado ras diversas. Máquinas escarificadoras
Escarificadores de tracción o montados. Estas mces, etc. El trabajo posterior de los buldóceres, palas mec facilitado. E?isten escarificadores remolcados o montados, dientes escarificadores situados delante de la cucilla y dientes escarificadores situados detrpica de esta categor>a. @uede ser de tracción o remolcado. En el primer caso, va provisto de ruedas que sustentan un bastidor portaerramientas de altura regulable mediante un sistema de cables. i va montado en el tractor, los órganos de trabajo se adaptan a un bastidor fijo sobre el tractor capaz de ascenso y descenso.
Act#aci1n %e $os %ientes escarifica%ores2
El escarificador montado parece a primera vista man poco. #os dientes escarificadores que se montan sobre la cucilla de empuje tienen idntica misión que el escarificador, pero son de construcción muco m saltar, su aderencia es mayor y su potencia se utiliza al m
Escarifica%or %esrai&a%or Esco
Dientes escarificadores situados delante de la cuchilla del bulldozer. #os dientes
escarificadores est quedan en posición de trabajo y listos para ser montados de nuevo sin ninguna otra operación
Ren%i"iento %e $os tractores3ni4e$a%ores El rendimiento de un tractor se e?presa en metros c=bicos por ora y depende de varios factores: abilidad del conductor, naturaleza del terreno, umedad y estado de los materiales y organización de las obras.
Transporte Transporte %e "ateria$es Esta es la operación m
A $a i&(#ier%a5 c#c6i$$a con inc$inaci1n 4ertica$7 centro5 c#c6i$$a recta7 %erec6a5 c#c6i$$a con inc$inaci1n 6ori&onta$2
OPERACIONES REALI8ADAS POR 9ULLDO8ER EMPU:E 1na operación de empuje se realizara con una oja frontal de empuje montada en el e?tremo frontal del tractor. #as condiciones de carga para el bulldozer, variaran desde las relativamente ligeras y uniformes, asta las aplicaciones de fuerza de impacto necesaria, a travs de la oja, para mover una piedra muy grande, como arrancar una ra>z o derribar un
DESMONTE O DESPE:E5 Esta función requiere en la mayor>a de los casos de un angledozer que posee una oja angular especial de empuje y accesorios de desgarramiento.
DES;ARRAMIENTO #os materiales sólidos o fuertemente consolidados pueden tener que aflojarse sea por una maniobra de rasgamiento o desgarramiento, o por una perforación o voladura. *uando las condiciones del trabajo indiquen operación de desgarramiento, debe acerse otras determinaciones preliminares. El uso final del material es importante, si va a ser utilizado como material de relleno, de nivelado o se va a desecar. *ontrolando la distancia entre las pasadas o los accesorios, puede regularse perfectamente bien el tamaño del material arrancado.
DESCRIPCION DE TRA9A:O EN O9RAS.
El tractor de oruga es tal vez la maquina m
#os buldóceres son mpica de corte de unos '% cm. , recorrer< mculos y maquinarias, como el arrastre de ve>culos o maquinarias que quedan atascados en el sector. Debe señalarse tambin la capacidad de cortar cerros, rompimiento rocas.
FUNCIONES DE RENDIMIENTO #a cucilla de un bulldozer, tiene una capacidad teórica que var>a con las clases de tierras y con el tamaño de la cucilla. i se conoce la capacidad de la cucilla, puede tener. el rendimiento apro?imado de una maquina estimando el n=mero de pasadas que pueda efectuar en una ora.
MANTENIMIENTO El mantenimiento periódico es uno de los factores a considerar en el costo de la maquinaria ya que regularmente debe estarse aciendo un control de engrasado y aceites en general. En lo que refiere a !antención periódica el operario nos e?plicó que era precisamente el quien realizaba estas mantenciones ya que lograban abaratar costos para su empresa. A continuación nombraremos las mantenciones mas recurrentes que le realiza a su maquina
CAM9IO DE ACEITE DE MOTOR A LAS <=> 6oras2 CAM9IO DE FILTRO DE ACEITE A LAS <=> 6oras2 CAM9IO DE FILTRO DE PETROLEO A LAS <=> 6oras2 CAM9IO DE FILTRO DE AIRE A LAS <=> 6oras2 CAM9IO DE ACEITE /IDR?ULICO A LAS @>>> 6oras2 CAM9IO DE ACEITE DE SIST2 DE TRANS2 A LAS @>>> 6oras2 CAM9IO DE ACEITE MANDOS FINALES A LAS @>>> 6oras2 En casos e?tremos nos señalaba que por escasez de recursos el dueño de la maquina realiza cambios, con piezas usadas, lo cual de todos modos resulta perjudicial ya que su vida =til es muco menor que uno nuevo.
CONCLUSIÓN e puede concluir de todo este trabajo que la maquina en estudio, un bulldozer, nos otorga un gran poder de trabajo en cualquier estado del terreno con la e?cepción de los pantanosos como ya se a mencionado pero no lo aleja de trabajar en pendientes msimo por las grandes capacidades de poder de estas m
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INTRODUCTION
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MAINTENANCE AND CATERPILLAR CATERPILLAR TRACTOR reparasion
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2 T%e len-t% o) %a*l/ 2 T%e t'pe o) "or& t%at %as to #e done a)ter t%e "or& is 7nis%ed/ 3EATURES AND MACINERY 3UNCUIONAMIENTO DESCRIPTION O3 TE MACINE MODEL1 Cra"l D89E:;?@ lts/ Data s*pplied #' t%e operator o) t%e ,a5/B 3UEL1 oil/ PER3ORMANCE1 t%e .<> %o*rs/ In li-%t "or& T%e .<8 %o*rs/ In %eav' "or&/
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specs
en-ine
S'ste, "it% direct )*el in$ection/ Mec%anical -overnor speed/ 3orced l*#rication driven #' -ear p*,p/ A p*ri7cation sc%e,e )or all l*#ricant/ Air cleaner dr'. t'pe "it% d*st c%*te and a*to,atic d*st indicator/ indicator/ Electric Starter Motor <;; &0/ &0/ Alternators <>9/ < #atteries o) ;<;@ A% a,pere %o*rB/ !o,ats* ,odel S8d;<9e.< T'pe .stro&e c'cle+ "ater cooled+ e,issioni(ed+ t*r#oc%ar-ed diesel en-ine N*,#er o) c'linders 8 /=< distract FF ;<9 ,, Move,ent 9/=; FF ;9@ ,, Piston Displace,ent 8 inH ;;/@ liters T%ic& %orsepo"er ;=9@ RPM J P <@9 ;9> &0 orses net )orce K'"%eel P ;=9@ RPM ;=@ ;< &0 JJ E4ort ,ai,*, net tor5*e ;<@@ RPM <> )t l# ;@@ &- , J orses "it% t%ic& %ard1 %ard t%ic& %orses appeared )or t%e standard en-ine as SAE ;==9 ;==9 conditions/ net %orsepo"er JJ 3l'"%eel1 T%e net %orsepo"er K'"%eel appeared )or t%e standard en-ine SAE ;>=B incl*din- air 7lter 7lter++ alternator no loadB+ "ater p*,p+ oil p*,p l*#ricant+ )*el p*,p+ ,*er+ and )an/ TRANSMISSION TOR3LO0 TOR3LO0
!o,ats* TOR3LO0 trans,ission is a "et da,per+ sprin-.)riction+ coolin- "ater+ "ater+ >.ele,ent+ ;.sta-e+ tor5*e converter ;.p%ase and a planetar' -ear trans,ission Cl*tc% M*ltiple disc %'dra*licall' and l*#rication )orce )or opti,al %eat dissipation active/ It )eat*res a sin-le.lever control > speeds and directions and ,ana-e,ent c%an-es/ T%e loc&in- lever -ears%i)t and ne*tral sa)et' s"itc% to prevent accidental ,ac%ine start/ Travel Speed 3or"ard Reverse @.>/= MP ;st Gear @.<+ ,p% @.9/@ MP @ to >/; ,p% @./< MP ,p% @.?/8 MP MP @ to 8/8 @ to ;@/8 MP t%e >rd -ear ,p% )ro, @ to ?/> @ to ;>/ ,iles per %o*r MP
Mana-e,ent Controls sin-le.reversi#le )or all directional ,ove,ents/ Si,pl' tilt t%e lever to t%e le)t to ,a&e a le)t c*rve/ Tilt it to t%e ri-%t to ,a&e a ri-%t t*rn/ P*s% lever )or"ard res*lts in )or"ard ,otion t%e p*ll #ac& t%e ,ac%ine operator/ operator/ 'drostatic drive s'ste, SSB o) t%e di4erential planetar' -ear t'pe/ Po"ered #' t%e %'dra*lic ,otor actin- %'dra*licall'+ %'dra*licall'+ ,an*all' and )*nctionalit'/ Givin- ,ini,*, t*rn radi*s F> FF < , Pedal Qra&es "et ,*ltiple disc+ sprin-.applied+ %'dra*licall' on+ )oot pedal operated sa)et' lever
3inal Drive Do*#le.end sti,*l*s red*ction and planetar' -ear drives to ,ini,i(e t%e trans,ission o) s%oc&s to po"er train co,ponents/ T%e ed-es se-,ented sproc&et are Qolton )or eas' in.7eld replace,ent/ Undercarria-e S"in- s*spension+ sta#ili(er #ar 3ra,e Monoco5*e trac& roller+ steel constr*cted %i-%. tensile.stren-t% Rollers and Idlers carriel l*#ricated trac& rollers and idlers are sealed "it% Koatin- seals N*,#er o) trac& rollers eac% sideB ? N*,#er o) t%e carrier rollers eac% sideB < S&i trac& s%oes l*#ricated/ Sin-le."idt% s%oes/ Onl' d*st seals )or preventin- entr' o) non.native separations a#rasive.to.%*# contact )or etended service/ T%e trac& tension is easil' ad$*sted "it% -rease -*n/ N*,#er o) s%oes eac% sideB 9 ei-%t T%ic&ness 8 FF 89 ,, S%oe "idt% standardB <@/; FF 9;@ ,, Gro*nd contact area 9/;=> inc%esH >>9@9 inc%esH Operation o) t%e press*re on land PSI ?/<@ @/9 &- c,H
Capacit' coolant and l*#ricant to 7llB U/S ;>/< -allon coolant 9@ liters ;@? -allon )*el tan& ;@ liters U/S En-ine oil >? liters ;@/@ -allon U/S Da,per @/8 -allon liters U/S Tor5*e converter+ trans,ission and #evel -ear ,ana-e,ent s'ste, ;>/< U/S/ -allon 9@ liters li ters 3inal Drive Mec%anis, eac% sideB < liters 8/> U/S/ -allon 'dra*lic Oil Capacit' Qlade #ladeB/ U/S ;/9 -allon 99 liters
Operatin- 0ei-%t Approi,ateB Tractor "ei-%t1 Incl*dinI ncl*din- rated capacit' o) l*#ricant+ coolant+ PROTECTIE DEICES I3 lod-in-+ )*ll )*el tan&+ operator+ and standard e5*ip,ent/ >+<@ l#s ;99>@ &Operatin- "ei-%t1 Incl*din- doser+ operator+ GUARDS IN t%e case o) rollin-+ steel ca#+ standard e5*ip,ent+ rated capacit' o) l*#ricant+ coolant+ and )*ll )*el tan&/ <+9 l#s ;=>;@ &-
'dra*lics Closed.load t%e detected center CLSSB s'ste, is desi-ned )or precise control and replace,ent and )or e6cient si,*ltaneo*s operation/ In t%e %'dra*lic control *nit . all control valves eternall' ,o*nted #eside spool %'dra*lic tan&/ 'dra*lic p*,p "it% vol*,etric capacit' disc%ar-e Ko"B o) 99/9 U/S/ -al ,in <;@ ltr ,in at rated en-ine RPM/ Con7-*ration <==@ PSI valve <;@ &- c,H Control alves alves Spool control valve )or do(er tilt Se,i.U and strai-%t tilt do(er/ do(er/ positions1 Elevation Risin- s%eet+ %old+ lo"er and Koat Reed Tilt Ri-%t+ %old+ and -one Control valve spool )or an-le do(er/ Ran& . Risin- Qlade li)t+ %old+ lo"er and Koat Additional control valve re5*ired )or ripper ,*lti.pole/ Ran& . Risin- Ripper li)t+ %old+ and lo" T"in %'dra*lic c'linders+ piston 'dra*lic c'linders N*,#er o) c'linders Qore Qore Print elevation < >/ FF =9,, Print tilt ; 9/9; FF ;@ ,,
Ripper li)t ; 9/9; FF ;@ ,,
di,ensions
A F;; FF ;=9 ,, Q 8F< FF ;??@ ,, D F;@ FF <>=@ ,, 3 <@/; FF 9;@ ,, =F= FF <=?@ ,, I =F;; FF >@<9 ,, F< FF ;<@ ,, ! ?F= FF <89 ,, L ;@F= FF >9 ,, M ;F FF >89 ,, N 8 FF 89 ,, O ;@F9 FF >;=9 ,, Gro*nd clearance ;F F@@ ,
S%eet
Usin- steel %i-%.tensile.stren-t% in #*ildin- and constr*ction ,old#oard ca# #ac& plate )or etended service/ T%e %ose pipe tilt #lade is ,o*nted "it%in ar, do(er p*s% to protect a-ainst da,a-e/ Overall len-t% "it% #lade J A#ilit' do(er #lade len-t% #lade Mai,*, li)t %ei-%t on eart% Do(er Tilt Se,i.U ;F? FF /> ,, d 9>=@H 9/8; ,H ;;F F F?F F >8@ ,, ;<9 ,, >F FF ;@=9 ,, Mai,*, drop *nder-ro*nd ,ai,*, tilt ad$*st,ent Additional "ei-%t . Etra "ei-%t e5*ip,ent Do(er . %'dra*lic control *nit Additional "ei-%t ;F8 FF 9@ ,, ;@ &- ;+9=@ l# <@ PSI ;/98 &-s @/;; &- c,H
2 T%e capa#ilities o) t%e s%eet are #ased on practice ;<89 SAE Reco,,endation/ Standard E5*ip,ent Air cleaner+ do*#le ele,ent "it% procrearen Alternator+ >9 a,p A*to,atic ventin- o) t%e )*el Des Alar, #oo&inQatteries+ < ;< ;@ A% 3an Qlo"er decelerator Electronic instr*,ent panel ,onitor C%apel en-ine and side covers de)enses 'drostatic Steerin- S'ste, SSB SSB 'dra*lic tilt do(er )or Li-%tin- s'ste, incl*des < )ronts+ ; Qac&B Loc&s+ 7ller caps and covers Mono.%andlin- lever PPC M*er "it% c*rved e%a*st pipe Radiator -*ard door+ %in-ed Tan& Radiator reserve Qac& cover+ consolidated Mo*ntin- #rac&ets GUARDS GUARDS IN CASE rollover
Sin-le s%oes t%ic& "it% sealed and l*#ricated asse,#l' connection Consolidated *nder -*ards+ cran&case and trans,ission S*spension seat "it% seat #elt G*ards trac& roller+ end sections
Special accessories )or cra"ler tractors It %as #een seen t%at t%e tractor "it% do(er #lade and "inc% is a ,ac%ine t%at can per)or, all t%e "or& o) *prootin-/ o"ever+ o"ever+ it "ill -et #etter per)or,ance i) t%e tractor is 7tted "it% special accessories/ T%ese accessories *s*all' ,o*nted instead o) t%e )ront #lade/ Installation and disasse,#l' are *s*all' )ast+ "%ic% allo"s t%eir *se onl' )or "or& )or "%ic% t%e' %ave #een #*ilt/ In )act+ t%eir *se )or ot%er p*rposes "o*ld lead to a si-ni7cant drop in per)or,ance o) t%e tractor/ *ic&l' ea,ine t%ese accessories+ -ro*ped accordinto t%e t'pe o) "or& per)or,ed1 aB scari)'in- ,ac%ines+ #B #lades and #oots s%earers roots+ cB c B vario*s ras *prooted/ scari)'in- ,ac%ines arro" or ,o*nted drive/ T%ese ,ac%ines are *sed to prepare t%e "or& o) t%e #*lldo(er/ #*lldo(er/ M*llen overl' co,pacted soils+ destro' cr*sts or %ard s*r)ace la'ers+ c*t and di- *p t%e roots+ etc// S*#se5*ent "or& o) #*lldo(ers+ po"er s%ovels or ot%er ,ac%ines is t%*s )acilitated/ T%ere to"ed or ,o*nted scari7er+ scari7er+ scari7er
teet% located in )ront o) t%e #lade and scari7er teet% located #e%ind t%e #lade/ T%e scari7er *prooted t'pe rotateB is t%e t'pical ,ac%ine o) t%is cate-or'/ cate-or'/ It ,a' #e p*llin- or to"in-/ In t%e 7rst case+ it is e5*ipped "it% "%eels t%at s*pport a tool rac& %ei-%t ad$*sta#le t%ro*-% a s'ste, o) ca#les/ I) ,o*nted on t%e tractor+ tractor+ "or&in- #odies adapt to a 7ed )ra,e o) t%e tractor capa#le o) ascent and descent/ Per)or,ance o) scari7er teet%/
T%e scari7er ,o*nted see,s at 7rst ,ore e4ective t%an p*llin- e'e+ #*t %as t%e disadvanta-e o) re5*irin,ore asse,#l' ti,e/ Man' #*ilders ,o*nted rippers or traction+ #*t t%e ,odels var' little/ T%e scari7er teet% t%at are ,o*nted on t%e do(er are t%e ripper sa,e ,ission+ #*t are ,*c% si,pler constr*ction+ since t%e c*tter and serve %i, seat )ra,e/ T%e ,ode o) action is di4erent1 t%e scari7er #ar p*ll tractor #indin- eerts a )orce directed sli-%tl' *p"ard+ "it% teet% tendenc' to leave t%e -ro*nd "%en t%e resistance is ecessive re,ain 7ed t%ro*-% 'o*r pro7le and "ei-%t o) t%e scaler/ scaler/ T%e tractor is )ree to $*,p or s&ate "%en e4ort is ecessive/ ecessive/ On t%e contrar'+ contrar'+ t%e press*re )orce eerted #' t%e tractor ,o*nted on 7ed teet% in t%e #*lldo(er is directed do"n"ard and tends to &eep teet% 7ed+ is an' soil stren-t%+ retained #' t%e ca#le or scre"s/ T%e tractor can not $*,p "ell+ its ad%esion is increased and its ,ai,*, po"er is *sed Scari7er desrai(ador Esco
Scari7er teet% located in )ront o) t%e #*lldo(er #lade/ T%e scari7er teet% are )or,ed #' an ad$*sta#le #all and tipped interc%an-ea#le st*rd' %oo& attac&/ T%e toot% is cla,ped in a %o*sin-+ 7ed in t*rn to t%e s%eet #' t"o cla,ps t%at sec*re it to t%e top and #otto, t%ereo)+ t%ereo)+ "it%o*t %avin- to open %oles/ Installation is 5*ic& and eas'/ eas'/ T%ese teet% act "%ile t%e #lade o) t%e #*lldo(er/ #*lldo(er/ T%e soil is t%ere#' K*4' as it pro-resses/ T%e' can #e installed+ as appropriate+ one or t"o teet% on t%e #lade/ To disasse,#le nailin- 7rst reco,,ended in t%e soil+ as "ell are in "or&inposition and read' to #e reasse,#led "it%o*t an' ot%er operation
Per)or,ance.levelin- tractors T%e per)or,ance o) a tractor is epressed in c*#ic ,eters per %o*r and depends on several )actors1 driver s&ill+ terrain+ %*,idit' and condition o) ,aterials and or-ani(ation o) "or&/ Transport o) ,aterials T%is is t%e si,plest operation+ "%ic% *lti,atel' ,a' re)er ot%er partic*lar cases/ T%e #*lldo(ers are constr*cted pri,aril' to transport 5*ic&l' lar-e a,o*nts o) ,aterials over s%ort distances 9@ to ?@ ,/B/
Le)t1 vertical tilt #lade center1 strai-%t #lade Ri-%t1 %ori(ontal tilt #lade/
TRANSACTIONS QY QULLDOER PUS P*s%in- operation is carried o*t "it% a )ront s%eet p*s%er ,o*nted at a )ront end o) t%e tractor/ T%e loadin- conditions )or t%e #*lldo(er+ #*lldo(er+ var' )ro, relativel' li-%t and *ni)or, application o) )orce to t%e necessar' i,pact+ t%ro*-% t%e #lade to ,ove a ver' lar-e+ li&e startin- a root or stone )ell a tree/ To 5*ali)' i,pact )orce+ direct trans,ission t rans,ission is pre)erred/ Ot%er"ise+ )or li-%ter load and -rad*al variations o) a #*lldo(er+ possessin- #etter tor5*e converter/ 3or all *ses is #etter to %ave trans,ission po"er c%an-es/ REMOE OR CLEARANCE1 T%is )*nction re5*ires in ,ost cases %avin- a partic*lar an-ledo(er an-le do(er attac%,ents and tear/ tear Solid or stron-l' #o*nd ,aterials "%ic% ,a' %ave to #e loosened #' tearin- or rendin- ,ane*ver or #' a drillin- or #lastin-/ 0%en "or&in- conditions indicate tearin- operation ,*st #e ot%er preli,inar' deter,inations/ T%e end *se o) t%e ,aterial is i,portant+ "%et%er it "ill #e *sed as #ac&7ll+ levelinor #e discarded/ Controllin- t%e distance #et"een past or accessories+ 'o* can per)ectl' "ell ad$*sted t%e si(e o) t%e re,oved ,aterial/
DESCRIPTION O3 0OR! 0OR!S/ T%e cra"ler is per%aps t%e ,ost #asic and versatile ,ac%ine in t%e constr*ction ind*str'/ ind*str'/ Serves ,an' p*rposes+ s*c% as p*s%in- or p*llin- t%e, ,ove loads s*c% as "inc%es and drive *nit )or s,aller li)ters+ and as #*lldo(er #lades+ side )eat%ers and )ront loadin#*c&et/
T%e #*lldo(ers are versatile ,ac%ines in ,an' constr*ction pro$ects+ "%ere t%e' can #e *sed )ro, t%e #e-innin- to t%e end o) t%e operation Re-*lar eart%,ovin- operation is practicall' a strai-%t set o) )or"ard and #ac&"ard ,ove,ents/ 0%en t%e tractor ,oves )or"ard+ t%e )ront #lade c*ttin- en-a-es t%e -ro*nd+ )or its load/ T%e tractor ,*st travel several ,eters )or )*ll c%ar-e/ 3or ea,ple a t'pical #lade a#o*t ;9 c,/ + 0ill travel ,ore t%an ;< ,eters a%ead to -et )*ll c%ar-e/ T%is load as a slidin- "ed-e Serra -ro*nd+ driven in )ront o) t%e #lade/ Mainl' *sed in t%e earl' "or& to 7ll t%e s"a,p' area "%ere t%e' c*rrentl' "or&/ T%an&s to its trac&s+ t%is ,ac%ine can #e *sed in all t'pes o) soil ecept #o--'+ so it onl' ,oves t%e 7ller ,aterial to t%is place to ac%ieve 7r,ness o) t%e -ro*nd "%ere %e later "or&ed t%e rest o) t%e ,ac%ines/
T%e ,aterial "as ,oved into t%e ,ars%/ T%e 7llinconsisted o) -ravel+ sand and ot%er ,aterials to ens*re co,paction/ It is also *sed in t%e constr*ction o) t%e roads t%at "ill #e *sed later )or c*rrent tra6c o) ve%icles and ,ac%iner'+ ,ac%iner'+ as t%e dra- o) ve%icles or ,ac%ines t%at -et st*c& in t%e sector/ S%o*ld also #e noted t%e a#ilit' to c*t %ills+ #rea&inroc&s/ PER3ORMANCE 3EATURES T%e #lade o) a #*lldo(er+ #*lldo(er+ %as a t%eoretical capacit' varies "it% land classes and t%e si(e o) t%e #lade/ I) t%e capacit' o) t%e #lade is &no"n+ 'o* can %ave/ t%e approi,ate per)or,ance o) a ,ac%ine #' esti,atint%e n*,#er o) passes t%at 'o* can ,a&e in an %o*r/
MAINTENANCE
Periodic ,aintenance is one o) t%e )actors to consider in t%e cost o) ,ac%iner' and re-*larl' #e doin'o*rsel) a control -rease and oils in -eneral/ 0%en it co,es to re-*lar Maintenance operator eplained t%at it "as precisel' t%ese ,aintenances "%o per)or,ed and "%o ,ana-ed to c*t costs )or 'o*r #*siness/ T%en na,e t%e ,ost rec*rrin- ,aintenances done to 'o*r ,ac%ine CANGE ENGINE OIL TO <9@ %o*rs/ OIL 3ILTER CANGE TO <9@ %o*rs/ OIL 3ILTER CANGE TO <9@ %o*rs/ AIR 3ILTER CANGE TO <9@ %o*rs/ YDRAULIC OIL CANGE AT ;@@@ %o*rs/ OIL CANGE SYSTEM/ TRANS/ AT ;@@@ %o*rs/ OIL CANGE TO 3INAL CONTROL ;@@@ %o*rs/ In etre,e cases "e noted t%at t%e li,ited reso*rces o) t%e ,ac%ine o"ner ,a&es c%an-es+ "it% *sed parts+ "%ic% an'"a' is %ar,)*l #eca*se li)e is ,*c% less t%an a ne" one/ CONCLUSION One can concl*de )ro, t%is "or& t%at t%e ,ac%ine *nder st*d'+ a #*lldo(er+ -ives *s -reat po"er "or&inin an' state o) t%e land ecept s"a,p as I "as ,entioned #*t not a"a' )ro, "or& on steeper slopes o) *s*all' ot%er ,ac%ines "%ere "%eel "or& since it provides -reater sta#ilit' )or t%e i,proved dispersion o) t%e load on t%e t %e -ro*nd itsel)/ Also note t%e lar-e po"er developed even *sed #rea&in- roc&s notin- t%at t%e lo"er ends o) t%e #lade %as t%e #*tt end t%at are
species Ra,s to a driven #est #lade on t%e -ro*nd "%ic% "as clearl' indicated #' t%e operator t%is ,ac%ine/ T%is "or& is an openin- )or t%e net $o# on a )ront loader or a #*lldo(er #ein- *sed in eart%"or&s+ "%ic% interested ,e ver' ,*c% )or t%e -reat po"er capa#ilities o) t%ese ,ac%ines t%at represent -reat %elp in r*#ra constr*ction/ It s%o*ld #e ,entioned t%at in t%e catalo-s o) t%ree t'pes o) #*lldo(er &o,ats*a,erica/co, &o,ats*a,erica/co, ,odel D89E: ,eet/
RE3ERENCES 2 constr*ction ,ac%iner'/ ,ac%iner'/ R/L/ C%ervilB/ D>> 8=@ @ 2 Met%ods+ plannin- and constr*ction e5*ip,ent David A/ Da'B/ P8< 8=@ @ 2 Pa-e &o,ats*a,erica/co, internet/ 2 Internet s*pple,ents ,a-a(ines/