Abstract:
Tire is important component of a Dump Truck. For transporting material from the loading
point and fleet to disposal Dump Truck performance is required. Trouble On the tire will
interfere the unit performance. Month period data from January to March show the amount of
failure to the unit HD785-7 dump truck tire which can indirectly interfere the performance of
the unit. Therefore, analysis of two key performance indicator (KPI) that tread utility ratio
(TUR) and lifetime must be done to find the factors that cause failure, as well as find out
whether there is a relationship between lifetime and TUR against different types of failure that
occurred by using logistic regression. From the analysis, it is known that the tire KPI has yet to
reach a given target, the main factor of tire performance has yet to reach the target is human
error, operator Dump Truck and Excavator by 44%, from the results of logistic regression
analysis of the data for 3 months it is known that the relationship LifeTime and TUR against
various types of failure is not significant because Chisq value is greater than the value of 0.05
pr. (5%).
