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Bush Hog 280 manual

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  • Page 1

    BU S H H O G ® ASSEMBL Y ● OPERA TION ● MAINTENANCE $4.00 Operator ’s Manual 280 SERIES R OT AR Y CUTTERS 199 P art No. 95355[...]

  • Page 2

    CONGRA TULA TIONS! Y ou ha ve inv ested in the best implement of its type on the mar ket toda y . The care you giv e your Bush Hog implement will greatly determine your satisf action with its perf or mance and its ser vice lif e. W e urge a careful study of this manual to provide you with a thorough understanding of y our new implement bef ore oper[...]

  • Page 3

    280 SERIES ROT AR Y CUTTERS T ABLE OF CONTENTS SECTION/P ARA P A GE W arranty .................................................3 Dealer Preparation Chec k List ...............4 Saf ety Precautions .................................5 F ederal La ws and Regulations...............6 I. INTRODUCTION & DESCRIPTION ......7 1-1 Introduction ............[...]

  • Page 4

    BUSH HOG ® MODEL 280 SERIES LIMITED W ARRANTY ✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯ Bush Hog warrants to the original purchaser of any new Bush Hog equipment, purchased from an authorized Bush Hog dealer, that the equipment be free from defects in material and workmanship for a period of one [...]

  • Page 5

    DEALER PREP ARA TION CHECK LIST 280 SERIES RO T AR Y CUTTERS BEFORE DELIVERING MA CHINE — The f ollowing chec k list should be completed. Use the Operator’ s Manual as a guide . ❒ 1. Assembled completed. ❒ 2. Gearbo x filled with oil. ❒ 3. All fittings lubricated. ❒ 4. All shields in place and in good condition. ❒ 5. All f asteners to[...]

  • Page 6

    IMPOR T ANT SAFETY PRECA UTIONS This symbol is used to call attention to safe- ty precautions that should be followed by the operator to avoid accidents. When you see this symbol, carefully read the message that follows and heed its advice. Failure to comply with safety precautions could result in serious bodily injury. In addition to the design an[...]

  • Page 7

    IMPOR T ANT FEDERAL LA WS AND REGULA TIONS* CONCERNING EMPLO YERS, EMPLO YEES AND OPERA TIONS. *(This section is intended to explain in broad terms the concept and effect of the following federal laws and regulations. It is not intended as a legal interpretation of the laws and should not be considered as such). U.S. Public Law 91-596 (The Williams[...]

  • Page 8

    1-1 INTRODUCTION We are pleased to have you as a Bush Hog cus- tomer. Your 280 Series Rotary Cutter has been carefully designed to give maximum service with minimum down time. This manual is provided to give you the necessary operating and maintenance instructions for keeping your rotary cutter in top operating condition. Please read this manual th[...]

  • Page 9

    Figure 2-1 Top Link Pin 5-1/2” 3-3/4” 3-3/4” 8 NOTE Due to the many variations in tractor / imple- ment hitch points and corresponding differ- ences in distances between tractor PTO shafts and implement input shafts, drivelines may need to be shortened as described in the following steps: SECTION II PREP ARA TION FOR USE QUICK HITCH ASSEMBLY [...]

  • Page 10

    9 Figure 2-3 H. Hold driveline sections parallel to each other and check for minimum 6 inches (15cm) overlap. Figure 2-4). If driveline has been marked for cutting, overlap will be the distance between two marks. If driveline has less than minimum overlap, do not use. Contact authorized Bush Hog dealer. NOTE If driveline is the correct length, omit[...]

  • Page 11

    SECTION III OPERA TING INSTR UCTIONS 3-1 GENERAL SAFETY Only qualified people should operate this machine. Operator should wear hard hat, safety glasses and safety shoes. It is recommended that tractor be equipped with Rollover Protective Systems (ROPS) and a seat belt be used. Before beginning opera- tion, clear work area of objects that may be pi[...]

  • Page 12

    ROTATING CUTTER BLADES. STAND CLEAR UNTIL ALL MOTION HAS STOPPED. TO AVOID AN ACCIDENTAL FALL FROM THE TRACTOR AND POSSIBLE INJURY BY THE MOWER, IT IS RECOMMENDED THAT THE TRACTOR BE EQUIPPED WITH ROPS (ROLLOVER PROTECTIVE SYSTEM) AND THAT A SEAT BELT BE USED BY THE OPER- ATOR FOR ALL MOWING OPERATIONS. F. Place tractor in gear and begin cutting. T[...]

  • Page 13

    12 Figure 4-1 Lubrication (3) Before Each Use (2) Before Each Use (6) Before Each Use 4-4 BLADE REPLA CEMENT (Figure 4-2) It is not necessary to remove the complete blade holder assembly to replace the blades. Blade bolts are accessible through a hole in the top of the cutter deck. Always replace both blades on a spindle using two blades having the[...]

  • Page 14

    (See Chart) Figure 4-3 Spring Length MODEL SPRING LENGTH 285 &286 1-3/32” or 27.6 mm 287 1-1/8” or 28.5 mm 13 turning blades. If clutch does not slip, contact your authorized Bush Hog dealer. C. Retighten nuts to within 1/64” of original posi- tion. Initial spring length is shown in Figure 4-3. 4-6 SLIP CLUTCH ADJUSTMENT The slip clutch i[...]

  • Page 15

    PRE-ASSEMBL Y SAFETY PRECA UTIONS THE FOLLOWING SAFETY PRECAUTIONS SHOULD BE THOROUGHLY UNDERSTOOD BEFORE ATTEMPTING MACHINE ASSEMBLY. 1. Wear personal protective equipment such as, but not limited to protection for eyes, ears, feet, hands, lungs and head when assembling the equipment. Do not wear loose clothing or jewelry that may catch on equipme[...]

  • Page 16

    SECTION V ASSEMBL Y IMPORTANT Tighten all fasteners to specifications on Torque Chart unless otherwise indicated. 5-1 3-POINT LIFT MODELS (285 & 286) A. Attach A-frame struts to mounting brackets using 5/8” x 2” capscrews and locknuts as shown. (Figure 5-1) B. Place flex link and pivot tube between top of A- frame struts. Place support yoke[...]

  • Page 17

    5-2 3-POINT LIFT MODELS (287) A. Attach A-frame struts to mounting brackets using 5/8” x 2” capscrews and locknuts as shown. (Fig. 5-1) B. Place flex link and pivot tube between top of A- frame struts. Place support yokes on outside of A- frame struts. Fasten together using a 5/8” x 6” cap- screw and locknut. Attach the opposite ends of the[...]

  • Page 18

    5-3 SEMI-MOUNT MODEL (287) A. For mounting dual tailwheels, position tailwheel brackets at the rear tubes located in the strong- backs. (Figure 5-2) Align holes in tailwheel weld- ment with holes in strongback. Install pivot bushings and fasten with 3/4” x 8” capscrews and flange lock- nuts. Pin ratchet or lift cylinder (8” stroke) to axle an[...]

  • Page 19

    18 5-5 FRONT BEL TING INST ALLA TION A. Align belting and clamp with holes in front lip of deck. B. Fasten with 3/8 x 3-1/2” capscrews, flatwash- ers, lockwashers and nuts. (Figure 5-4) 5-6 REAR B AND INST ALLA TION A. Align deflector band with holes in rear band of deck. B. Fasten with 3/8 x 1” capscrews, flatwashers, lockwashers and nuts. (Fi[...]

  • Page 20

    SAFETY DECALS To promote safe operation, Bush Hog supplies safety decals on all products manufactured. Because damage can occur to safety decals either through shipment, use or reconditioning, Bush Hog will, upon request, provide safety decals for any of our products in the field at no charge. Contact your authorized Bush Hog dealer for more inform[...]

  • Page 21

    T ORQ UE SPECIFICA TIONS Proper toque for American fasteners used on Bush Hog equipment. Recommended Torque in Foot Pounds (Newton Meters).* BOLT DIAMETER WRENCH (IN.) “B” AND SAE SAE SAE SIZE (IN.) “A” THREAD SIZE GRADE 2 GRADE 5 GRADE 8 7/16 1/4 - 2O UNC 6 (7) 8 (11) 12 (16) 7/16 1/4 - 28 UNF 6 (8) 10 (13) 14 (18) 1/2 5/16 - 18 UNC 11 (15[...]

  • Page 22

    MODEL 287 QUICK HITCH ASSEMBL Y NOTE Pivot arm must be assembled as shown so that it will pivot upward as the hitch assembly flexes. Pointed end must be to the top. Piv ot Ar m End Pointing Upward 21[...]

  • Page 23

    DIVISION OF P .O . Bo x 1039 ● Selma, AL 36702-1039 T elephone (334) 872-6261 BUSH HOG[...]