Hammer™ II Steel Dump Truck Tarp System | Donovan Tarps

MODELS: Donovan 1809574, 1809578, 1809555, 1809556 With the Hammer™ II, you get one-size-fits-all styling for dump bodies up to 23 feet in length. Strong 1 1/2-inch diameter round “easy-off” pivot arms and flat coil torsion springs provide smooth, powerful operation. The GL model has a ground-level manual crank while the standard Hammer™ is powered by the Durabuilt™ 12V direct-drive motor with rotary switch. Optional upgrades include 40-amp Durabuilt™ rocker switch kit with solenoid, wind deflectors, pivot arm rests and spring trap and tarp trap hold-downs. Installation Instructions  Part Number Model Name Arms Springs Operation 1809574 Hammer™ II GL Straight Flat Coil (5) Manual 1809578 Hammer™ II GL 30° 30° Bend Flat Coil (5) Manual 1809555 Hammer™ II Straight Flat Coil (5) Electric 1809556 Hammer™ II 30° 30° Bend Flat Coil (5) Electric Standard Tarp System Features: Tarp Spool with Side Plates Extruded Aluminum Roller Bar 1.69” Round Arms - 2-Piece Black Pow