Lubrication pump

A fluid pump for an earthmoving machine, the machine including a fluid source and an attachment including a first portion and a second portion pivotably coupled to the first portion, the fluid pump comprising:

• an arm including a first end and a second end, the arm configured to be pivotably driven about the first end by movement of the first portion relative to the second portion;
• a first pump assembly including
• a first inlet configured to be in fluid communication with the fluid source,
• a first outlet,
• a first cylinder at least partially defining a first pump chamber in fluid communication with the first inlet and the first outlet, and
• a first piston positioned within the first cylinder and movable relative to the first cylinder, the first piston biased toward a first position, the pivoting movement of the arm moving the first piston away from the first position and changing the volume of the first pump chamber;
• and
• a second pump assembly including
• a second inlet configured to be in fluid communication with the fluid source,
• a second outlet,
• a second cylinder at least partially defining a second pump chamber in fluid communication with the second inlet and the second outlet, and
• a second piston positioned within the second cylinder and movable relative to the second cylinder, the second piston biased toward a second position, the pivoting movement of the arm moving the second piston away from the second position and changing the volume of the second pump chamber.

An attachment for a mining shovel, the mining shovel including a fluid source, the attachment comprising:

• a first portion;
• a second portion pivotably coupled to the first portion;
• a link coupled between the first portion and the second portion, the movement of the first portion relative to the second portion driving the link to pivot about an axis;
• a cylinder coupled to one of the first portion and the second portion, the cylinder including an inlet configured to be in fluid communication with the fluid source and an outlet, the cylinder at least partially defining a pump chamber in fluid communication with the inlet and the outlet;
• a first spring biased in a first direction;
• and
• a piston movable within the cylinder and biased in the first direction by the spring, the pivoting movement of the link causing the piston to move in a second direction opposite the first direction, the movement of the piston changing a volume of the pump chamber.