Baler devices, systems, and methods are shown and described. In one embodiment, the device includes an access door that is generally repositionable about a maintenance opening in a compression chamber. A chamber maintenance assembly may include a repositionable chamber access door, a pair of opposing hydraulic actuators, and a pair of extension arms connecting the access door and the hydraulic actuators. The result is devices, systems, and methods to provide improved access to the compression chamber to attend to jamming maintenance.