Abstract: A compactor tooth has a replaceable wear tip mounted to a mounting block carried on the cylindrical exterior surface of a landfill-compactor wheel of a compactor machine. The mounting block has an external surface formed to engage a complementary internal cavity of the wear tip and includes a pair of circumferentially spaced sides oriented not more than 5 degrees from perpendicular to the cylindrical exterior surface of the wheel. The replaceable tip has a body with an exterior ground-engaging surface, a mounting end and a mounting-base receiving cavity opening through the mounting end. The cavity is configured to receive the mounting block thereinto and has a pair of circumferentially spaced side surfaces configured to be in close abutting relationship to a respective one of the circumferentially spaced sides of said mounting block.

Abstract: An idler for supporting the forward end of an endless track of a track-type tractor has an endless chain resiliently supported on an outer flange of the idler hub. An outer surface of the chain provides a substantially continuous bearing surface for supporting the endless track on the idler.

Abstract: A vibratory mechanism is provided with first and second motors connected to first and second eccentric weights. One of the first and second motors is operable to change a phase difference between the first and second eccentric weights to change a vibration amplitude.

Abstract: The present invention is a control arrangement that includes a detent assist assembly for assisting a detent arrangement in holding a control device in a predetermined position. Additionally, the detent assist assembly serves as an actuator for a control valve operative with the control device. Further, the detent assist assembly provides tactile feedback to an operator through the control device. The present invention is a simple and efficient device for providing a detent assist with tactile feedback.

Abstract: An idler wheel assembly, which supports and guides an endless track and provides sound suppression, and a method for providing sound suppression of an undercarriage of a machine. The idler wheel assembly includes a hub having a first side surface and a second side surface onto which a plurality of segments are connected. Each of the plurality of segments has a first flange positioned adjacent the first side surface of the hub, and a second flange positioned adjacent the second side surface. At least one isolation device may be mounted between the hub and at least one of the plurality of segments to provide sound suppression.

Abstract: Mounting pin arrangements are useful for connecting a first and a second structure together. When the pin is inserted in a mounting structure the mounting pin arrangement needs to expand to seal the arrangement to prevent dust and dirt from entering the mounting arrangement. The subject mounting pin arrangement includes a sleeve assembly that has a plurality of sleeve segments and an elastomeric is positioned and connected to adjacent segments and includes an end cap on the end portion of the sleeve. The sleeve includes a tapered bore therethrough. A pair of inserts are positioned in the bore and include tapers that interact with the taper in the bore of the sleeve to expand the sleeve to seal the mounting arrangement. The arrangement of components provides an expandable pin arrangement that will prevent dust or dirt from entering the mounting arrangement to prolong the life of the various components.

Abstract: A compactor tooth has a replaceable wear tip mounted to a mounting block carried on the cylindrical exterior surface of a landfill-compactor wheel of a compactor machine. The mounting block has an external surface formed to engage a complementary internal cavity of the wear tip and includes a pair of circumferentially-spaced sides oriented not more than 5 degrees from perpendicular to the cylindrical exterior surface of the wheel. The replaceable tip has a body with an exterior ground-engaging surface, a mounting end and a mounting-base receiving cavity opening through the mounting end. The cavity is configured to receive the mounting block thereinto and has a pair of circumferentially-spaced side surfaces configured to be in close abutting relationship to a respective one of the circumferentially-spaced sides of the mounting block.

Abstract: A method for controlling the dilution air supply to a partial flow dilution tunnel in a gas sampling system is provided. The gas sampling system is capable of testing and certifying internal combustion engines under transient conditions and includes a partial flow dilution tunnel, master and slave mass flow controllers and a transient dilution air flow controlling arrangement. The transient dilution air flow controlling arrangement measures the transient changes in intake air and varies the flow of diluent air to the partial flow dilution tunnel. By controlling the diluent air in this manner ensures that a particle sample can be taken at any time that is at a constant proportion to the exhaust flow rate.

Abstract: A method and apparatus of assembling a joint of an endless track chain for track-type machines to prevent endplay in the joint is disclosed. The joint includes a pair of links and a cylindrical pin. Each link includes a outwardly offset outboard end collar having a boss extending outwardly therefrom and a bore therethrough. Each boss has an outer surface. The pin includes opposite end portions. Each end portion is pressed and non-rotatably mounted into respective one of the bores of the outboard end collars. The method comprises the steps of forming an annular groove about each of the end portions, placing a swage tool against the outer side surface of the boss in axial alignment with the pin, and applying a sufficient force on the swage tool to form at least one mechanically formed nodule protruding from the outer side surface into a respective ones of the grooves. The nodule having a cross-sectional configuration substantially conforming to the groove.

Abstract: A compacting drum for a work machine has first and second drum sections. The first and second coaxial drum sections rotate independently from one another. The first and second drum sections are coupled together by a controllable coupling arrangement that can be varied between fully coupled and fully uncoupled.

Abstract: A work machine 10 for increasing the density of a compactable material 12 includes at least one compacting drum 14 driven by a two-speed drive arrangement 40. Compacting drum 14 also includes a vibratory mechanism 26 that is powered by a hydraulic motor 28. A first input device 54 is used to select the frequency of the vibratory mechanism 26. A second input device is used to select the output speed of the two-speed drive arrangement 40. A third input device 66 is used to select a desired impact spacing of the vibratory mechanism relative to the output speed of the two-speed drive arrangement 40. A controller 52 receives signals from the input devices 54,60,66 and responsively controls the output of a pump 22 automatically propelling the work machine 10 to a speed at which the desired impact spacing is obtained.

Abstract: A vibratory mechanism 26 is provided for a compacting work machine 10. The vibratory mechanism 26 includes a first/outer eccentric weight 50 and a second/inner eccentric weight 80. The second weight 80 has a cavity 88 with a movable mass 90 that when rotated in a first direction 124 opposes the first eccentric weight 50 and when rotated in a second direction 126 the movable mass 90 combines with the first eccentric 50. The second eccentric weight 80 is also manually indexable relative to the first eccentric 50 to a plurality of distinct positions giving a plurality of different amplitude vibratory impact forces when rotated in either of the first and second directions 124,126.

Abstract: A sprocket for supporting and propelling an endless track assembly of a track-type machine. The sprocket has an endless chain which is resiliently mounted to an outer flange of a hub. The chain has outwardly projecting teeth that interact with the endless track assembly to propel the machine. A plurality of drive assemblies are pressed between the endless chain and the flange to resiliently connect the endless chain to the flange of the hub.

Abstract: An arrangement for supporting a track chain having a track link, a first bushing mechanically coupled to the track link, and a second bushing mechanically coupled to the track link. The first bushing has a first center point C1 defined thereon. The second bushing has a second center point C2 defined thereon. The first center point C1 is spaced apart from the second center point C2 by a distance D1. The arrangement includes an idler wheel having a circumferentially extending surface defined thereon. The circumferentially extending surface has a first notch and a second notch defined therein. The first notch has a first wall portion. The first wall portion has a first point P1 defined thereon at a first location. The second notch has a second wall portion. The second wall portion has a second point P2 defined thereon at a second location which corresponds to the first location. The point P1 is spaced apart from the point P2 by a distance D2.

Abstract: A debris stripping apparatus 64 is provided for an endless track laying work machine 10. The debris stripping apparatus 64 includes a wear bar 66 that protrudes from the outer circumferential surface 56 of the drive wheel 30. During operation the wear bar 66 acts as a sacrificial member that strips away mud and debris from the track roller assembly 12. Thus, the wear bar 66 creates a clearance allowing the drive wheel 30 to rotate without making abrading contact with the debris.

Abstract: An improved sealing arrangement 40 is provided for a replaceable cylinder liner 10. The sealing arrangement 40 includes a seal 26 in the form of a band that is positioned in an annular groove 28 under a flange seat 20 of the cylinder liner 10. The annular groove 28 includes a first and a second undercut 30,34 that provides a relief area for the seal 26 to deflect into lessening the opportunity of damage to the seal 26. The first and second undercuts 30,34 also relieve stress in the axial direction improving the fatigue life of the cylinder liner 10.

Abstract: A work machine is provided and adapted for use in paving operations. The work machine has a conveying system for moving paving material from a first end portion to a predetermined distance beyond a second end portion. A receiving portion is included on the second end portion and is adapted to receive a plurality of operational attachments. The plurality of attachments transforms the work machine into three distinct machines that perform different paving operations.

Abstract: A seal arrangement is disclosed. The seal arrangement includes a seal groove having a central axis. The seal groove is defined by at least a first wall segment, a second wall segment, and a third wall segment interposed the first wall segment and the second wall segment. The first wall segment is angled relative to the central axis so that a linear extension of a surface of the first wall segment intersects the central axis so as to define an angle &agr; therebetween. An associated method of producing a seal arrangement is also provided.

Abstract: The planetary steering differential includes first and second interconnected gear trains. First and second gear trains are used for rotating output members in the same direction at the same speed in response to rotating solely a first input and holding a second input stationary. Rotation solely the second input arrangement and holding the first input arrangement stationary the output members are rotated in opposite directions at the same speed. The first input arrangement is driven by a transmission, and the second input arrangement is driven by a reversible steering motor.

Abstract: A track assembly includes a frame. The track assembly also includes a drive wheel and an idler wheel rotateably secured to the frame. The track assembly further includes an endless belt having an inner surface and an outer surface. The endless belt is disposed around the drive wheel and the idler wheel. The track assembly also includes a guide block secured to the inner surface of the endless belt. The track assembly further includes a first roller rotateably secured to the guide block.