Thrower Arm E30 & F31

- Excess wear can impede the thrower arm from opening the coupler knuckle - Poor casting quality can create fit issues and prevent smooth operation of the coupler - Poor material quality can cause premature failure of the thrower arm To ensure proper function and universal fit in interchange, Pennsy’s line of Thrower Arms were designed using 3-D scans of a multitude of Throwers and Coupler bodies. Thrower Arm dimensions and material properties are routinely checked to verify product conformity. - Thanks to Pennsy’s database of scanned coupling components and quality control system, Pennsy avoids many of the fit issues found in the field - Pennsy’s strict material controls prevent premature failures in the Thrower Arm - All Pennsy products are clearly marked and identifiable