摘要:
An improvement to an air logic circuit for an airfeed peck drill includes the insertion of an advance valve into the timer circuit. This advance valve generates a signal to actuate the timer circuit only after the drill quill has fed forward through rapid advance.
摘要:
An improvement to an air logic circuit for an airfeed peck drill includes the insertion of a retract valve between the command valve and the air motor. This retract valve generates a required signal to only allow the drill quill to feed forward after it has been fully retracted
摘要:
A nose piece for use with an airfeed drill includes a cylindrical portion which has on one end a truncated cone for mounting a drill support bearing and on the other end a flange. Formed within the flange are a plurality of slots. These slots correspond to an array of rotatable fasteners and locking pieces mounted on the front of the housing. Attachment of the nose piece to the housing is accomplished by placing the slots over the fasteners and locking pieces and tightening the fasteners.
摘要:
An attachment assembly for use with a vehicle includes an arm support assembly and an attachment interface assembly pivotally mounted to the arm support assembly. The attachment interface assembly includes an interface plate configured to accept a work attachment. The attachment interface assembly and interface plate pivots under the influence of respective lift and tilt actuators. The attachment interface assembly is removable from the arm support assembly, and the actuators are pivotable into stowed positions, upon removing a pin that attaches the lift actuator piston rod to the attachment interface assembly, a pin that attaches the tilt actuator piston rod to the interface plate, and a pin that pivotally attaches the attachment interface assembly to the arm support assembly. The pins may be used to secure the actuators in the stowed positions, and an additional clip may be used to secure one or both of the actuators in the stowed position.
摘要:
A debris shunting awning assembly, for an undercarriage in a ground engaging track system for a track-type machine includes an awning having a plurality of segmental plates with an assembly configuration at which the plates are coupled with the inboard side of a track roller frame and span a clearance between the track roller frame and a main frame of the track-type machine. The awning assembly is configured to direct debris through a debris path extending through a portion of a track system for the track-type machine.