Patent ID: 8684656

Claim:
A pin arrangement for removably attaching an implement to a work machine, the work machine having a mounting frame, and the implement having a mast for attachment to the mounting frame, the pin arrangement comprising a pin that engages both the mast and the mounting frame, the improvement comprising: a pin retainer affixed to the pin, the pin retainer having at least a handle and a locking shaft, the locking shaft spaced apart from the pin and having at least two eccentric stops projectinq from the locking shaft and a release knob thereon, the release knob having a retaining portion, the handle and locking shaft being movable between a first position and a second position; and, a slot in the mast, the slot having a first portion that allows passage of one of the at least two eccentric stops when the locking shaft is in the first position and preventing passage of the one of the at least two eccentric stops when the locking shaft is in the second position, the slot having a second portion that selectively engages the retaining portion of the release knob when the locking shaft is in the second position thereby preventing movement of the locking shaft from the second position to the first position, the first portion of the slot preventing passage of the other one of the at least two eccentric stops when the locking shaft is in the first position; whereby the pin is locked in the mast and mounting frame when the locking shaft is in the second position, and the pin can be withdrawn from the mounting frame when the locking shaft is in the first position, but is retained in the mast.