Analysis of Floating Seal Damage Due to Over Travel against the Performance of a Reduction Excavator Motor Traveler

Excavators are heavy equipment used to dig and move soil from one place to another. The part that
functions as a driving force on the excavator is a travel motor reduction. If there is damage in this section,
the excavator cannot operate in moving places. The amount of damage that arises during the operation of
the heavy equipment so that in this paper the problem that is focused is about the damage to the floating
seal on the traveler motor reduction excavator. Travel motor reduction is a major part of excavators as
movers in moving places. To solve the problems that occur in the travel motor reduction excavator using
a combination of qualitative and quantitative research methods. The method used is a Literary Study
conducted by finding sources of references from books and similar research related to problems regarding
the malfunctioning of heavy equipment, Field studies are conducted by interviewing operators,
supervisors and also seeing firsthand the condition of the work field and also heavy equipment in the field.
Direct testing is done to calibrate the data recorded on the H-mate and OMM to analyze and find out
directly the cause of damage from the travel motor reduction component. From the results of data
collection and direct testing in the field, it is known that the cause of damage to the travel motor reduction
gear is due to overheating due to over-travel excavator which causes damage to the floating seal which
results in leakage so that the lubricating oil is contaminated with material from outside the engine. As a
result of leakage from the floating seal results in the quality of the lubricating oil and the function of the
lubricating oil being unfavorable which has an impact on the performance of travel motor reduction. There
is no field supervision for excavator operating hours, due to the lack of operator understanding of machine
maintenance and operation. The beginning of the damage to the travel motor is known by the presence of
noise (noise) on the travel motor and the operator does not heed until finally the engine jammed cannot
move (jammed).