Urwasaya rwa jaland ni imashini ikonjesha ikoresha ibijyanye no kunyerera no kunyerera by'isahani z'icyaro bibiri byo guhonyora ibikoresho bitandukanye. Uburyo bwo guhonyora bugizwe na plate ihamye hamwe nisahani yimukanwa. Iyo urwasaya rwa showlay ebyiri, ibikoresho bizavunika, kandi iyo urwasaya rwinshi rugenda, ibikoresho bihagarara bito kuruta gufungura bivuye hasi bizasohoka hasi. Igikorwa cyacyo cya crusing gikorwa rimwe na rimwe. Ubu bwoko bwa crusheri bukoreshwa cyane mu nzego zinganda nkimikorere yubukungu, ibikoresho byubaka, kwangirika no mubutaka kubera imiterere yoroshye, ibikorwa byizewe nubushobozi bwo guhonyora ibikoresho bikomeye.
Mu myaka ya za 1980, ubunini bwo kugaburira bw'urwasaya runini bwajanjaguye toni 800 z'ibikoresho ku isaha bimaze kugera kuri mm igera kuri 1800. Mubisanzwe byakoreshejwe kumena urwasaya ni inshuro ebyiri na toggle imwe. Abambere gusa bahindagurika muri arc yoroshye mugihe ikora, niko kandi yitwa inzoga zoroheje wasaya; Aba nyuma barazamuka bakamanuka mugihe bazunguruka arc, bityo bitwa kandi urujya n'uruza rw'urwasaya.
Kugenda hejuru-no hepfo ya shoferi ya shoferi ya moteri ya Toggle JawGLe jand ya Toggle ifite ingaruka zo kuzamurwa, kandi koroshya ibintu byinshi, bityo imikorere yayo iruta iyindi bwoko. Ibibi byayo nuko isahani ya urwasaya yambara vuba, kandi ibikoresho bizarushaho guhonyora, bizongera ibiyobyabwenge. Kugirango urinde ibice byingenzi byamashini kuva kwangirika kubera kurenza urugero, isahani ya toggle hamwe nuburyo bworoshye nubunini buke bwakozwe nkintege nke, kugirango ikoreshwe cyangwa ngo igabanye cyangwa ngo ucike cyangwa ngo ucike imbere mugihe imashini yuzuye.
Mubyongeyeho, kugirango wuzuze ibisabwa kugirango usohore granulartity kandi yishyuwe ku isahani yo gufunga ikibanza, igikoresho cyo guhinduranya icyambu cyo guhongerwa, ubusanzwe icyuma gishyirwa hagati yintebe ya Toggle hamwe nintebe yinyuma. Ariko, kugirango birinde ingaruka ku musaruro kubera gusimbuza ibice byacitse, ibikoresho bya hydraulic birashobora kandi gukoreshwa kugirango ugere ku bwishingizi no guhinduka. Bamwe mu baja urwasaya bakoresha mu buryo butaziguye kandi bahindura hydraulic bakuraho isahani yimukanwa kugirango barangize ibikorwa byinshi. Ubu bwoko bwombi bwa jand bakoresheje uburyo bwo kwanduza hydraulic bakunze kwerekeza kubajanjaka rya joydraulic.
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