Abstract: The present disclosure relates to a hydraulic mining shovel. The shovel may comprise a main frame, a power module and a counterweight module. The shovel may further comprise a first exhaust aftertreatment module and a second exhaust aftertreatment module, each being mounted onto the counterweight module and each including a reductant tank and pump unit and a selective catalytic reduction unit. The first exhaust aftertreatment module and the second exhaust aftertreatment module may be configured and arranged substantially mirror-symmetrically at opposing sides of the counterweight module with respect to a central longitudinal axis of the main frame.

Abstract: A track pad is disclosed for use for a track type mobile machine having a sprocket and an idler wheel. The track pad may have a first link with a rail surface configured to engage the sprocket and the idler wheel, and a second link oriented generally parallel with the first link and having a rail surface configured to engage the sprocket and the idler wheel. The track pad may also have a shoe connected to the first and second links at a side opposite the rail surfaces, and a wear indicator formed within the rail surface of at least one of the first and second links.

Abstract: A track pad is disclosed for use for a track type mobile machine having a sprocket and an idler wheel. The track pad may have a first link with a rail surface configured to engage the sprocket and the idler wheel, and a second link oriented generally parallel with the first link and having a rail surface configured to engage the sprocket and the idler wheel. The track pad may also have a shoe connected to the first and second links at a side opposite the rail surfaces, and a wear indicator formed within the rail surface of at least one of the first and second links.

Abstract: A dipper assembly includes a dipper, a dipper door, a closure mechanism, and one or more block assemblies. The dipper door is pivotally mounted to the dipper, and has a closed position in which the dipper door covers the dipper bottom. The closure mechanism has a locked position and an unlocked position, and is coupled to the dipper back and the dipper door. In the locked position, the closure mechanism holds the dipper door in the closed position. In the unlocked position, the closure mechanism allows the dipper door to swing away from the closed position. The block assemblies are coupled to the dipper back and limit a rotation of the side link plate to a pre-defined angle that corresponds to the closed position.

Abstract: A dipper assembly includes a dipper, a dipper door, a closure mechanism, a trip assembly, and a camshaft support assembly. The dipper door is pivotally mounted to the dipper for movement between an open position and a closed position in which the dipper door covers the dipper bottom. The closure mechanism is configured to retain the dipper door in the closed position. The trip assembly is configured to release the dipper door for movement to the open position, and includes a trip arm coupled to a camshaft and also coupled to a trip rope. The camshaft support assembly is configured to receive the camshaft, and includes a bearing block receiving a rotatable bearing member, and a sealing mechanism.