The invention relates to a change system for wear parts of an excavator bucket of an earthmoving machine, comprising a carrier structure which can be fastened to or is formed on the excavator bucket and which has a projection and also an exchange part with a pocket-like cavity for releasably plugging the exchange part onto the projection of the carrier structure, wherein, to secure the exchange part on the carrier structure, there is provided at least one connection member which is connected to the carrier structure via a first connecting mechanism and to the exchange part via a second connecting mechanism physically separated from the first connecting mechanism, wherein at least one of the two connecting mechanisms is a releasable connection.

A support assembly for ground engaging tools comprises a tool (106) operatively connected to a working edge (116) of a work implement (100); a support member (134) operatively connected to the working edge (116) separately from the tool a predetermined distance away (164) from the tool (106) along the sweep direction (S, S′); wherein the support member (134) and tool (106) are operatively associated with each other and are configured to provide a load path (128) between the tool (106) and the support member (134) along at least a portion of the sweep direction (S, S′).

A kit for supplying components for a support assembly for ground engaging tools comprising a shroud protector for use with the support assembly that is configured to be attached to a work implement using a retaining mechanism, a tool adapter and a shroud insert that includes a resilient member that is configured to engage the reinforcement surface of a tool adapter, wherein the shroud insert is disposed between the work implement and the shroud protector.

A support member for use with a support assembly for ground engaging tools comprises a structural member; and a resilient member that includes a base, and a contact surface, and wherein the structural member defines a direction of assembly and the resilient member defines a length and a width that are perpendicular to each other and to the direction of assembly, wherein the length exceeds the width and the base defines a centerline that is parallel to the length, and the contact face defines a centerline that is parallel to the length.

A wear member assembly may include a nose attachable to a bucket lip. The nose may include a rear portion having a first set of substantially planar surfaces including a first, second, and third subset of surfaces. The third subset of surfaces may be angled and positioned between the first subset of surfaces and the second subset of surfaces. The nose may also include a forward portion positioned forwardly adjacent to the rear portion, the forward portion having a second set of substantially planar surfaces including a fourth, fifth, and sixth subset of surfaces. The sixth set of surfaces may be angled and positioned between the first subset of surfaces and the second subset of surfaces. The wear member assembly may also include a wear member having a cavity comprising rear and forward bearing surfaces corresponding to the third and sixth subset of surfaces.

A fastener includes an elongated shaft having a head at the end, the head comprising a lock fin extending radially outward from the shaft. The head includes an engagement cavity. The fastener further includes a cap having an engagement protrusion for insertion into the engagement cavity of the cap such that rotation of the cap causes corresponding rotation of the head, the cap further comprising a contact portion having a plurality of radially outward facing planar surfaces. The fastener further includes a rotation resisting element having inward facing planar surfaces that fit with the radially outward facing planar surfaces of the contact portion, the rotation resisting element further including an interference feature extending radially outward, the rotation resisting element being resilient so as to allow but resist rotation of the cap with respect to the rotation resisting element.

A retainer sleeve configured for use in a retainer system for a ground engaging tool includes a plurality of plate-like sections, each section being flexibly joined with an adjacent section along either a radially inner edge or a portion of a radially outer edge. The radially inner edges of the plurality of sections form part of a segmented inner surface configured for engagement with an outer surface of a locking member of the retainer system. The inner surface extends partially around a central axis of the retainer sleeve to form a substantially C-shaped retainer sleeve having opposite circumferential ends that are spaced from each other. The radially outer edges of the plurality of sections form part of a segmented, frustoconical outer surface configured for engagement in an internal lock cavity of a ground engaging tool tip.

A locking pin assembly for securing a wear member to a support structure may include a body portion and may include a shaft member partially disposed within and extending from the body portion and rotatable between a first position that mechanically inhibits removal of a ground engaging member from a support structure and a second position that permits removal of the ground engaging member from the support structure. A wear member for receiving a locking pin assembly may include a bore extending laterally through the bore member with a proximal opening and a distal opening, an installation ramp and a removal ramp may be disposed at the proximal opening for engaging a tang of a shaft member of the locking pin assembly.

With a view to providing such an apparatus, the invention comprises a tooth adapter defining top and bottom walls and side walls, an adapter recess in one side, a retention means in the adapter recess, a bolt with a fastening inserted in the recess, a collar formed on the bolt of predetermined diameter, a tooth having side walls and defining a hollow chamber fitting over said adapter, a through tooth bolt opening formed in a tooth side wall of predetermined diameter, said tooth bolt opening being located to register with said adapter recess, when the tooth is positioned on the adapter.

In one version the diameter of the collar is slightly greater than the diameter of the tooth bolt opening, to create a locking effect.

An adaptor includes a body defining a longitudinal axis, and a transverse axis that is normal to the longitudinal axis. The body also has a leading portion defining a lock receiving recess extending transversely at least partially through the leading portion, and a wire receiving conduit that is in communication with the lock receiving recess. The lock receiving recess defines a width and a depth with a ratio of the depth to width is greater than 1.0.