702-16-01420PILOT VALVE
Sephahla sa sefofane sa bulldozer ke karolo ea bohlokoa ea tsamaiso eohle ea hydraulic control, e bapalang karolo ea "molaoli". E na le boikarabello ba ho fetola tšebetso e nyane ea mokhanni (mokhanni) holim'a "joystick/handle" hore e be li-hydraulic signals tse laolang ketso ea hydraulic valve, e qetellang e fihletse ts'ebetso e nepahetseng,{1}}ho boloka, le ho laola lisebelisoa tse matla (kharafu, sesebelisoa sa ho theola mobu) le sistimi ea ho tsamaea ea bulldozer.
Mosebetsi oa mantlha: Mosebetsi oa mantlha oa valve ea sefofane ke ho holisa matla a ts'ebetso le ho fana ka taolo e lekanang.
Matla a matlafatsoa: * * Opereishene e hloka feela matla a manyenyane ho tsamaisa mofeng, 'me valve ea sefofane e ka sebelisa khatello ea oli ea hydraulic ka boeona ho hlahisa khatello ea oli e tsamaisanang le taolo (khatello ea sefofane).
* Taolo e leka-lekaneng: Sebaka kapa matla a sebelisoang ke motsamao oa ho tšoara hangata o lekana le khatello ea mofofisi. Ha sebapi se ntse se tsamaea haholo, khatello e matla ea mofofisi; Ha ho sisinyeha ha mofeng, ho fokotsa khatello ea mofofisi.
Molao-motheo oa ts'ebetso (ho nka mohlala o tloaelehileng oa hydraulic pilot valve):**
*Opereishene e tsamaisa lehare la taolo kapa se ts'oara ka har'a cab.
*Motsamao oa mochini oa mofeng o sutumelletsa spool (vallofo ea selaete kapa kutu) ka har'a valve ea sefofane hore e tsamaee.
*Motsamao oa mantlha oa valve o fetola boemo ba khokahano ea potoloho ea oli:
*Tataisa oli e tlase-ea khatello (eo hangata e bitsoang oli ea sefofane) ho tloha pompong ea sefofane ho ea boema-kepeng ba oli (A kapa B port) e lebisang pheletsong e 'ngoe ea spool ea mantlha ea taolo.
* Ka nako e ts'oanang, hokela boema-kepe ba oli ka lehlakoreng le leng la spool ea mantlha ea taolo ho tanka ea oli (boema-kepe bo khutlang).
*Ka tsela ena, tlas'a ketso ea
Tataiso ea motsamao le boholo ba ho bula ha spool e kholo ea taolo ea li-valve li laoloa ka kotloloho ke khatello le tlhahiso ea tataiso ke valve ea sefofane.
*Sehlopha se seholo sa taolo se qetella se laola-sekoere se seholo sa khatello ea oli se phallelang ho actuator (hydraulic cylinder blade lift/tilt/ripper lift; hydraulic motor travel), ho khanna actuator hore e tsamaee ka lebelo le lakatsehang.
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