Izixhobo zezityalo zokuxuba i-asphalt zinokuvelisa umxube we-asphalt, umxube we-asphalt olungisiweyo, kunye nomxube we-asphalt onemibala, ohlangabezana ngokupheleleyo neemfuno zokwakha iindlela ezinkulu, uhola wendlela, iindlela zikamasipala, izikhululo zeenqwelo-moya, amachweba, njl. ukuchaneka, umgangatho omhle wezinto ezigqityiweyo, kunye nolawulo olulula, lwamkelwa ngokubanzi kwiiprojekthi zepavement ye-asphalt, ngakumbi iiprojekthi zendlela ehamba phambili, kodwa ngamanye amaxesha ukukhubeka kwenzeka ngexesha lomsebenzi, ngoko kufuneka senze ntoni xa kwenzeka le nto?

Ngomxube we-asphalt wesikrini esingcangcazelayo: qhuba uhambo olunye ngaphandle komthwalo, kwaye uqalise uhambo kwakhona. Emva kokutshintsha i-thermal relay entsha, impazamo isekhona. Khangela umnxibelelwano, ukuchasana kwe-motor, ukuxhathisa ukumisa kunye ne-voltage, njl., kwaye akukho zingxaki zifunyenwe; yehlisa ibhanti lokuhambisa, qalisa isikrini sokungcangcazela, i-ammeter ibonisa eqhelekileyo, kwaye akukho ngxaki ngokukhubeka imizuzu engama-30 ngaphandle kokusebenza komthwalo. Impazamo ayikho kwindawo yombane. Emva kokulungiswa kwakhona ibhanti lokuhambisa, isikrini sokungcangcazela sifunyenwe ukuba soyiswe kakhulu yibhloko ye-eccentric.
Nqamula ibhloko ye-eccentric, qalisa isikrini sokungcangcazela, i-ammeter ibonisa iminyaka eyi-15; imitha yamagnetic igxininiswe kwibhokisi yebhokisi yesikrini esishukumayo, i-radial runout ihlolwe ngokumakisha i-shaft, kwaye ubuninzi be-radial runout yi-3.5 mm; ubuninzi be-ovality yokuthwala i-diameter yangaphakathi yi-0.32 mm. Buyisela indawo yesikrini esingcangcazelayo, faka ibhloko ye-eccentric, qalisa kwakhona isikrini sokungcangcazela, kwaye i-ammeter ibonisa eqhelekileyo. Akusekho hambo.