Zigawo za Excavator EX1200 Back Chain Guard

Hitachi Ex1200 back chain guard ndi chimodzi mwazinthu zofunika kwambiri za Hitachi Ex1200 excavator, zomwe zimayikidwa kumbuyo kwa track of excavator, zomwe zimagwiritsidwa ntchito kukonza ndi kutsogolera kayendetsedwe ka njanji, kuteteza fupa la unyolo kuti lisawonongeke, kuwonjezera moyo wautumiki wa unyolo fupa, kuonetsetsa ntchito yachibadwa ya njanji pamene wofukula akuyenda, ndi kuchepetsa zochitika za unyolo kupatuka, derailment ndi zolakwika zina.