DUAL PORT LUBRICATING OIL MONITORING AND MAINTENANCE CAP FOR A ROLLER OF A TRACKED VEHICLE

摘要

A roller of a tracked vehicle includes a lubricating oil reservoir having an open end closed by a sealing body having an outer face and an opposed inner face facing the reservoir, and which is transparent to provide visual access into the reservoir through the open end for lubricating oil level and quality monitoring purposes. A depression with a raised rim is formed in the outer face of the sealing body, and a port is formed in the sealing body, which extends through the sealing body at the depression from the outer face to the inner face of the sealing body. A removable plug is applied to and closes the port, and is positioned in the depression and extends outwardly from the outer face of the sealing body no further than the raised rim isolating the plug from shearing forces across the outer face of the sealing body.

主权项

1. Apparatus, comprising:
a reservoir has an open end closed by a sealing body, the sealing body includes a perimeter extremity engaged to the open end of the reservoir and spans the open end of the reservoir, the sealing body has an outer face facing away from the open end, an opposed inner face facing the open end to the reservoir, a depression with a rim formed in the outer face of the sealing body proximate to the perimeter extremity, the depression extends inwardly from the rim to a drain port formed in the sealing body proximate to the perimeter extremity, and the drain port extends through the sealing body at the depression from the outer face of the sealing body to the inner face of the sealing body; a drain plug movable between a first position detached and separated from the drain port and the sealing body so as to open the drain port to provide liquid draining therethrough from the open end of the reservoir, and a second position detachably attached to the drain port and the sealing body so as to close the drain port; and in the second position of the drain plug detachably attached to the drain port thereby closing the drain port, the drain plug is positioned in the depression and extends outwardly from the outer face of the sealing body no further than the rim isolating the drain plug from shearing forces across the outer face of the sealing body proximate to the perimeter extremity.