Small grease lubrication gun for pneumatic tool has compression spring on lower end of cover of grease container and in normal state presses hold-down washer downwards and presses grease in container into main body through extension

摘要

The grease lubrication gun has a cylindrical grease container (7) screwed onto an extension (13) on the body (1). A hold-down washer with an O-ring around its circumference is fitted in the container, and a cover (9) is screwed onto the open upper end of the grease container. The cover has a compression spring on its lower end and in the normal state presses the hold-down washer downwards and presses the grease in the container into the main body through the extension. Consequently, by the pushing of the rear section of a pushrod (3) into the main body grease is pressed through a grease nipple (2) into the small pneumatic tool to be lubricated.