Place the coupler on the ground with the hooks (Item 1) [Figure 40-211-5] facing towards the excavator.
Align the arm and bucket link with the coupler [Figure 40-211-5].
Install the O-rings (Item 1) [Figure 40-211-6] between the coupler pivot point and the arm and bucket link when lowering into position.
NOTE: The O-rings will prevent dirt and debris from entering the pivot points of the coupler.
Align the holes of the connecting pins with the holes (Item 2) [Figure 40-211-6] in the coupler.
Install the two pins (Item 3) [Figure 40-211-6] through the coupler, arm and bucket link.
Install the two bolts (Item 1) [Figure 40-211-7].
Install nuts (Item 2) [Figure 40-211-7] just until contact is made with the coupler.
NOTE: Do Not tighten nuts (Item 2) [Figure 40-211-7] against the coupler. The retaining bolt must rotate freely.
Install and tighten nuts (Item 3) securely against the two nuts (Item 2) [Figure 40-211-7]. The retaining bolts must rotate freely.