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Anleitung Bush Hog, modell GHM 1900

Hersteller: Bush Hog
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II quick hitch, mower must have optional bushings installed on upper and lower lift pins as shown in Figure 2-2. Lower lift pins must be attached to the mower as shown in the STANDARD configuration of Figure 2-1. B. Connect and/or adjust stabilizer bars, sway blocks, sway chains, or equivalent to prevent laterql movement of lift arms. Refer to tractor operator’s manual. C. Connect hydraulic hose to tractor remote hydraulic outlet. Figure 2-2 Hitch Pin Bushings NARROW STANDARD WIDE 46” Max. 8 D. Attach PTO driveline to tractor 540 rpm or 1000 rpm PTO shaft. Make certain driveline is securely connected at both ends. Attach PTO drive- line shield safety chain on both the implement and tractor ends. (Figure 2-3) CAUTION DO NOT USE A PTO SHAFT ADAPTER WITH THIS IMPLEMENT. USE OF A PTO SHAFT ADAPTER WILL VOID ALL WARRANTY CONSIDERATIONS. E. Pin parking stand in work position. (Figure 2-4) F. Adjust tractor lower lift arms so vertical main frame is perpendicular to the ground as shown in Figure 2-5. G. Set tractor 3-point hitch depth control or install the optional check chain assembly to stop with the horizontal main frame pivot approximately 20 inches from the ground. (Figure 2-4) Figure 2-3 Fasten Shield Safety Chains At Each End Figure 2-4 Parking Stand Stored 20” Ground H. Check to be certain all persons are clear of cutter bar. I. Raise mower using tractor 3-point lift. Raise cutter bar to transport position. When cylinder “bottoms out” hold valve open an additional 3-5 seconds to purge air from system. J. Pin transport lock to retain cutter bar in the transport position. (Figure 2-6) Figure 2-5 90° Ground Figure 2-6 Transport Lock 9 SECTION III OPERATING INSTRUCTIONS 3-1 GENERAL SAFETY 3-3 TRANSPORTING Only qualified people familiar with this operator’s manual should operate this machine. Operator should wear hard hat, safety glasses and safety shoes. The operator should read, understand and practice all safety messages shown on the caution, warning and danger decals affixed to the mower to avoid serious injury or death. It is recommended that tractor be equipped with Rollover Protective System (ROPS) and a seat belt be used. Before beginning operation, clear work area of any objects that may be picked up and thrown. Check for ditches, stumps, holes or other obstacles that could upset tractor or damage mower. Always turn off tractor engine, set parking brake, lower mower to ground and allow blades to come to a complete stop before leaving tractor operator’s seat. 3-2 CUTTING HEIGHT Cutting height is controlled by tilting the cutter bar forward or rearward. Shorten the 3-point hitch top link to tilt cutter bar forward and decrease cutting height or lengthen top link to increase cutting height. Recommended cutting heights are approximately 1” to 2-1/2”. Figure 3-1 3-Point Hitch Top Link - Cutting Height Adjustment WARNING TO AVOID SERIOUS INJURY OR DEATH, DO NOT ALLOW CUTTER BAR TO CONTACT ELECTRICAL WIRES. USE CARE WHEN PASSING BENEATH OVERHEAD OBSTRUCTIONS. Raise mower off ground using 3-point hitch. Fully raise cutter bar and pin transport lock in the transport position. (Figure 2-6) Place parking stand in the work position as shown in Figure 2-4. Make certain slow moving vehicle (SMV) sign mounted on rear shield is clean and in good condition. When transported on roads or highways, day or night, use tractor flashing warning lights unless prohibited by law. Do not exceed 15 mph. 3-4 BREAKAWAY LATCH IMPORTANT During operation the cutter bar should operate at 90° to the path of travel. The lead angle of the cutter bar may be adjusted by varying the mounting position of the breakaway assembly. The combination of holes and adjustment plate allow up to five different positions. (Figure 3-2) The breakaway latch, shown in Figure 3-2, allows the cutter bar to swing rearward if an obstruction is hit. If the latch releases, stop tractor and disengage PTO immediately. Thoroughly check cutter bar components for damage. Figure 3-2 Breakaway Latch Lead Adjustment Plate IMPORTANT FAILURE TO STOP IMMEDIATELY AFTER BREAKAWAY LATCH TRIPS CAN CAUSE DAMAGE TO MOWER To reset breakaway latch, slowly back up tractor with PTO disengaged and without raising cutter bar. The pressure of the cutter bar on the ground should be enough to reset latch. 10 Breakaway pressure is regulated by the tension of the latch springs (Figure 3-3). Spring length as shipped from the factory is 4-1/8” and is satisfactory for most conditions. Breakaway pressure can be increased by turning spring retaining nuts clockwise or decreased by turning counterclockwise. DO NOT COLLAPSE SPRING TO LESS THAN 3-3/4” OR SPRING WILL BECOME SOLID BEFORE LATCH CAN TRIP. Figure 3-3 Breakaway Latch Spring 4-1/8” 3-5 OPERATION A. Perform BEFORE EACH USE maintenance listed in paragraph 4-1. B. Pin parking stand and transport latch in the work position. C. Start tractor. Set tractor 3-point hitch depth control or install the optional check chain assembly to stop with the hor...