Caterpillar yashyize ahagaragara uburyo bubiri bwo gutwara imodoka munsi y’igare, Abrasion Undercarriage System na Heavy-Duty Extended Life (HDXL) Undercarriage System hamwe na DuraLink.

Indwara yo kwangirika kw'injangweSisitemu yo munsi y'imodokayagenewe imikorere myiza mu buryo buri hagati y’ubushyuhe bwinshi n’ubukonje, ubushyuhe buke n’ubuciriritse.
Ni ikintu cyasimbuye SystemOne kandi cyageragejwe mu bikoresho byo gusya, birimo umucanga, ibyondo, amabuye yashenye, ibumba, n'amabuye.
Sisitemu yo gusimbuza igare ry’injangwe (Cat Abrasion Undercarriage System) iraboneka mu ruganda, cyangwa nk'itangwa ry’inyongera, kuri dozeri nshya za Cat D1 kuva kuri D6 (ntoya kugeza ku iciriritse) hamwe na moderi za kera kuva kuri D3 kugeza kuri D6.
Isosiyete ivuga ko Cat Abrasion ifite ikoranabuhanga ryo kuzunguruka, ibikoresho byo gukanda byemewe n'amategeko, hamwe n'igishushanyo cya karitsiye gikozwe mu buryo bwihariye gituma ibintu bifunga neza. Buri kimwe muri ibi bivugururwa bigira uruhare mu kumara igihe kirekire ibice byangirika no kugabanya ikiguzi cyo gutunga.
Ikoranabuhanga ryo gusimbuza injangwe rikuraho imiyoboro yo gusimbuza injangwe mu buryo bwo gusimbuza injangwe, ndetse no gusimbuza injangwe kwangiza ijya mu buryo bwo gusimbuza ijya mu buryo bworoshye bugabanya igihe cyo kuyitunganya. Iyi sisitemu ifite ibikoresho byihariye bya Relieved Tread Idlers bikuraho gukorana hagati y’ibikoresho bitagira aho bibohera n’imiyoboro yo gusimbuza injangwe, ibyo bigabanya cyane kwangirika kw’imiyoboro kandi bigatuma igihe cyo gusimbuza injangwe kikuba kabiri ugereranije n’ibikoresho bisanzwe bitagira aho bibohera, nk’uko Cat abivuga.
Sisitemu yo gutwara imodoka munsi y’injangwe ya Cat Heavy Duty Extended Life (HDXL) ifite DuraLink yagenewe kumara igihe kirekire yambara mu gihe cy’ubusa, mu buryo buri hagati cyangwa buciriritse, bugira ingaruka mbi nko mu rutare rukomeye, mu myanda, no mu mashyamba. HDXL irahari ku modoka ziciriritse n’izinini.
Irimo gushyirwa mu ruganda cyangwa iboneka nk'iy'inyuma y'imodoka, HDXL iraboneka ku modoka zo munsi y'imodoka zisanzwe zikora akazi ko gutwara imodoka n'izisanzwe, kuva kuri za Cat D4 kugeza kuri D11 (Cat D6 kugeza kuri D11 isanzwe).