An autofill shutoff valve includes a valve body mounted to a lubricant reservoir and secured to a fill tube extending into the reservoir. The autofill shutoff valve has a valve stem extending through the valve body and into the lubricant reservoir. The valve stem is actuated by a plate disposed within the reservoir from a first position, wherein lubricant flows from a lubricant inlet to a lubricant outlet through the valve body, to a second position, wherein the valve stem blocks the flow of lubricant through the valve body. The autofill shutoff valve provides lubricant directly to the reservoir, thereby eliminating external plumbing and the autofill shutoff valve also prevents overfill of the reservoir by cutting off the flow when the reservoir is full.

A vent valve for an actuator disposed in a lubricant reservoir includes a bore extending through the plate, a seal disposed within the bore proximate a top surface of the plate, a retaining member extending about a lower opening of the bore, and a ball disposed within the bore between the seal and the retaining member. The vent valve is configured to allow air to pass from a lower portion of a lubricant reservoir as lubricant fills the lower portion. The vent valve also allows air to pass to the lower portion of the lubricant reservoir as lubricant is dispensed from the reservoir. The vent valve closes when the lubricant level reaches the vent valve, thereby preventing lubricant from flowing through the vent valve. The sealed vent valve allows the actuator to rise in response to a rising lubricant level.

A centerfill assembly for a lubricant reservoir includes a hollow tube for receiving lubricant from the top of the reservoir and loading the lubricant into the reservoir near the bottom of the reservoir. Loading the lubricant near the bottom of the reservoir introduces lubricant near where the stirring paddles mix the lubricant and near where the lubricant is loaded to the lubricant pump. Adding the lubricant near where the pumps load and near the stirring paddles helps to eliminate air pockets in the lubricant. In addition, having the centerfill rod minimizes exterior plumbing and allows for the mounting of valves on the fill line.

A fluid system of a machine. The fluid system includes a fluid reservoir, a pump coupled to the fluid reservoir, a filter coupled to the pump and a valve assembly. The valve assembly includes a first port, a second port coupled to the first port and to the fluid reservoir, a third port coupled to the first port, and a first check valve positioned between the first port and the second port. The fluid system further includes a second check valve positioned between the filter and the third port.

The present invention relates to a transportable system for delivering lubricant to a target, more specifically for lubricating machine parts and/or for re-filling a central or a de-central lubricating system. Further, the present invention relates to parts of the transportable system, the parts being a pressure releasing coupling, a gear pump and/or a high pressure pump.

A grease tool and method for greasing a wheel bearing where the grease tool includes a handle and manifold. The handle and manifold define a central passage that extends through the grease tool. A supply channel is formed radially between the central passage and an exterior surface of the grease tool and extends axially through the handle to an annular supply recess formed in the manifold. A grease fitting attached to the grease tool to facilitate a supply of grease through the supply channel and the supply recess to an inwardly facing surface of the wheel bearing. The central passage in the grease tool facilitating sliding the grease tool over an axle that extends through the wheel bearing and positioning of the grease tool within the wheel bearing evenly repacking of the bearing in a position over the axle.

A protection mechanism for a lubricant reservoir is mounted within a valve protection chamber disposed on an actuator. The protection mechanism includes a valve actuating plate and an elastic member biasing the valve actuating plate upwards. The actuator is pushed upwards by a rising level of lubricant as the lubricant reservoir is filled. When the reservoir is full, the actuator causes the valve actuating plate to contact a valve stem. The valve actuating plate pushes the valve stem up to shut off a flow of lubricant to the reservoir through the shut off valve. During an overfill event the actuator shifts upward due to the rising level of the lubricant in the reservoir. As the actuator shifts upward, the elastic member compresses such that valve actuating plate remains static relative to the lubricant reservoir as actuator rises.

A lube skid apparatus configured to be moveable and transportable. The lube skid having one or more tanks carried by a scaffold of the lube skid. One or both tanks having sloped bottom walls to optimize flow of fluids in the tanks to minimize residual fluid left in the tank. One or both tanks having sloped top walls configured to contain and direct the flow of fluid spills on the skid to an adjacent sump. The skid also carries a plurality of service devices such as a motor, an air compressor, a tank to hold compressed air, pumps to move fluid with associated filters and hoses, and one or more service storage drawers.

An oil gun for an automatic fluid pump conveniently supplies fluid stored inside a tank to the inside of a container. The oil gun includes a case and a handle part, which has a switch to control a battery-operated suction pumping part coupled to a suction hose to which a supply hose is coupled. A gun nozzle coupling part curvedly extends downward from the handle part. The case is divided into an upper case and a lower case that can be assembled and disassembled. A first seating groove is formed on one end of each of the upper case and the lower case to receive a connector of a flow path member. A second seating groove is formed on the other end of each of the upper case and the lower case to receive an upper portion of the gun nozzle.

Various embodiments of valve assemblies are provided for use in connection with the fluid systems of machines such as engine-powered machines. The valve assemblies may be used for performing fluid refill operations, fluid evacuation operations, fluid purge operations, and other types of fluid operations in connection with machine maintenance.