Abstract: A self propelled power machine is provided with a drive system and a traction lock mechanism. The drive system includes a speed range selector and associated mechanism that can operate the power machine in high and low speed ranges. The traction lock mechanism, when applied stops the drive system from moving the wheels of the power machine. A controller insures the drive system is in the low speed range prior to engaging the traction lock mechanism. The controller determines whether the drive system is operating in a low speed range or a high speed range. If the drive system is in the high speed range, the controller places the drive system in the low speed range and the controller then applies the traction lock after a short time delay to provide some dynamic slowing of the drive. If the system is already in the low speed range, the drive system remains there and the controller applies the traction lock.

Abstract: An adjustable arm assembly is drivably coupled to a control shaft and is moved by a link that has a centered position. The arm has two portions that are releasably clamped together. A first arm portion is connected to drive the control shaft. A second arm portion is connected to the link. The adjustment includes a clamp that will releasably clamp the two arm portions together in a fixed position, and an adjustment screw is used to adjust the relative rotational position of the first and second arm portions to move the first arm portion to position the control shaft in a centered position relative to second arm portion, when the second arm portion is in a spring return position. The arm portions are then clamped together.

Abstract: An apparatus for cleaning a surface within a vessel is supported at least partially above a support surface. The apparatus had an elongate combustion conduit extending from an upstream end to a downstream end The downstream end is associated with an aperture in a wall of the vessel and positioned to direct a shock wave toward the surface. A guide member is on the support surface. A number of support assemblies support the combustion conduit at a number of locations along a length of the combustion conduit and engage the at least one guide member.

Abstract: A side screen for the cab of a work vehicle, such as a skid steer loader, comprises a panel having strips defining openings therebetween. A high percentage of the area of the screen is open for visibility. At least one reinforcing member, such as a rib, is formed in the screen, such as on a strip or on a panel section. An intermediate panel may also provide a section of relatively heightened rigidity. Such reinforcing members reduce sheet bowing, or “oil can” effect, and maintain flatness of the screen, thereby optimizing the screen for a combination of both protection and visibility.

Abstract: A sidescreen for the cab of a work vehicle, such as a skid steer loader, is formed by punching out openings in a sheet of metal, leaving strips or webs between the openings. The openings are arranged in generally vertical and horizontal rows, and a high percentage of the area is open for visibility in the sidescreen regions. The strips between the openings have ribs formed across the width of the strips to reduce sheet bowing, or “oil can” shape. The ribs are formed in a first direction for the plane of the screen on the vertical strips, and in a second opposite direction from the plane of the screen on the horizontal strips. This provides a flatness control for the formed screen.