Initial Set-Up
Assembly Instructions
3
3-2 XR700 062419 Initial Set-Up
3.1 Assembly Instructions
The Model 721/521XR requires a minimum amount of assembly prior to mounting to the
tractor. Follow the procedures listed below to assemble the Articulator:
1. Mount the pull arms onto the Articulator pull bar. Orient the arms so that they bend out-
ward as they extend from the tractor. NOTE: The pull arm gussets must be oriented as
shown below.
2. Install the lift pins into the Articulator pull arms. The pins locate to the outside of the arms,
with the 7/8” split lock washers and 7/8-14 hex nuts to the inside of the arms.
Gusset(s) Oriented to Top
Lift Pin
Lift Pin
Split Lock Washer
Hex Nuts
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