-11-142922 - Signature 6000/7200 (16-August-2017)4. Ground Speed:Operating speed will varyaccording to:• rock size and density• whether spot pickingor windrow pickingExperience will teach you the correctcombination of forward travel speed and reelRPM to suit field conditions:Normal Operating Speed:As a rule 4 to 6 MPH (6 to 10 km/h) is anormal operating speed.Slow the travel speed when picking heavy rockwindrows.Refer to these operational hints before starting:1. Material size:The machine was designedto pick and unload rockand debris ranging in sizefrom 1-3/4 to 24 inches(45 to 600mm) in diameter. Smaller pieces willfall through the spacing in the grille and largerrocks will stall the paddle drive.2. Operator’s Responsibility:Every operator should read this manual andbe instructed in safe operating procedures. Anuntrained operator is not qualified to operatethis machine and could place themselves orbystanders in danger.OPERATINGOperation1-3/4” to 24”3. Grille Height:The grille should be lowered to allow the frontof the teeth to skim the ground surface. Thiswill provide the best gathering angle andallow a minimum amount of dirt being carriedinto the hopper box.All rocks should be laying on top of the groundfor best results when picking. Rocks that arepartially submerged or have been run overby the tractor tire are difficult to pick. In theseconditions, the grille can be set to momentarilyrun below the ground surface in an attempt topick the rock. However, raise the grille back toskimming the surface to reduce the amount ofdirt going into the hopper.IMPORTANT: Do not use the Rock Pickergrille to pry out deeply buried rock or debris.Grill teeth striking a buried rock will shock themachine and damage it.5. Buried Rocks:The machine is only designed to pick upmaterial that is loose and on top of the ground.Lodged or solid objects will shock load theframe of the machine when trying to pick themup and cause failures. They should be dug outby hand and placed on top of the ground.4 - 6 MPH(6 - 10 km/h)501015 25203035501015 25203035MPHRECOMMENDEDSPEED