Abstract: A plug assembly configured for installation in a hammer assembly, the plug assembly comprising a cylindrical plug and an anti-rotation component. The cylindrical plug may include a plug head and a plug body. The cylindrical plug may include a receiving feature located in the plug head. The anti-rotation component may include a first locking feature and a second locking feature. The first locking feature may be configured to fixably engage with the receiving feature. The second locking feature may be configured to engage with the hammer assembly.

Abstract: A plug assembly configured for installation in a hammer assembly, the plug assembly comprising a cylindrical plug and an anti-rotation component. The cylindrical plug may include a plug head and a plug body. The plug head may include a first hole and a second hole opposite the first hole, each hole extending from the outer surface of the plug head. The anti-rotation component may include a first linear portion and a second linear portion. The first linear portion and second linear portion may both be configured to fixably engage with the hammer assembly.

Abstract: A plug assembly configured for installation in a hammer assembly, the plug assembly comprising a cylindrical plug and an anti-rotation component. The cylindrical plug may include a plug head and a plug body. The cylindrical plug may include a receiving feature located in the plug head. The anti-rotation component may include a first locking feature and a second locking feature. The first locking feature may be configured to fixably engage with the receiving feature. The second locking feature may be configured to engage with the hammer assembly.

Abstract: A plug assembly configured for installation in a hammer assembly, the plug assembly comprising a cylindrical plug and an anti-rotation component. The cylindrical plug may include a plug head and a plug body. The plug head may include a first hole and a second hole opposite the first hole, each hole extending from the outer surface of the plug head. The anti-rotation component may include a first linear portion and a second linear portion. The first linear portion and second linear portion may both be configured to fixably engage with the hammer assembly.

Abstract: A hydraulic hammer having a front head and a lower bushing is disclosed. Also disclosed is a system and method for easily removing the lower bushing from the front head. The front head of the hydraulic hammer may define a bore therein and an inner surface of the bore may have a first taper. The lower bushing of the hydraulic hammer may be capable of being positioned within the bore of the front head and an outer surface of the lower bushing may have a second taper, with the first taper substantially following the second taper.

Abstract: A hydraulic hammer having a front head and a lower bushing is disclosed. Also disclosed is a system and method for easily removing the lower bushing from the front head. The front head of the hydraulic hammer may define a bore therein and an inner surface of the bore may have a first taper. The lower bushing of the hydraulic hammer may be capable of being positioned within the bore of the front head and an outer surface of the lower bushing may have a second taper, with the first taper substantially following the second taper.

Abstract: A hydraulic hammer (14) may include a housing (30) having a distal end defining an opening (38), a bushing (54) positioned adjacent the housing distal end, the bushing (54) having an inner guide surface (58) and a distal end (56), and a tool (22) having a proximal section (60) slidably disposed in the bushing inner guide surface (58) and a distal section (62) projecting from the housing (30) through the opening (38). The hydraulic hammer (14) may further include a composite seal (70) having an exterior cover (72) with a proximal end (76) releasably coupled to the bushing (54) and a distal end (77) projecting from the distal end (56) of the bushing (54), the exterior cover distal end (77) defining a recess (90) opening toward the tool (22), and an interior seal (74) having a base (92) disposed in the exterior cover recess (90) and a sealing arm (94) projecting inwardly from the base (92), the sealing arm (94) being configured to sealingly engage the tool (22).

Abstract: A hydraulic hammer (14) may include a housing (30) having a distal end defining an opening (38), a bushing (54) positioned adjacent the housing distal end, the bushing (54) having an inner guide surface (58) and a distal end (56), and a tool (22) having a proximal section (60) slidably disposed in the bushing inner guide surface (58) and a distal section (62) projecting from the housing (30) through the opening (38). The hydraulic hammer (14) may further include a composite seal (70) having an exterior cover (72) with a proximal end (76) releasably coupled to the bushing (54) and a distal end (77) projecting from the distal end (56) of the bushing (54), the exterior cover distal end (77) defining a recess (90) opening toward the tool (22), and an interior seal (74) having a base (92) disposed in the exterior cover recess (90) and a sealing arm (94) projecting inwardly from the base (92), the sealing arm (94) being configured to sealingly engage the tool (22).