Bush Hog M146 Automobile Parts User Manual
Contents
1. cece 15 SECTION PARA PAGE 3 13 Bucket Level Indicator Rod 15 3 14 Transporting eesis 20 3 15 Fork Lift Operation ma 20 3 16 Quick Hitch Operation 21 IV MAINTENANCE cccccccscccseesseseeseseseeseeees 22 4 1 Maintenance Check List 22 4 2 Lubrication i aaa ai 22 4 3 Hydraulic System Pressure Reguirements 23 4 4 Troubleshooting ee 23 VI ASSEMBLY airea edt klahve da tard ats 25 5 1 Tractor Preparation ma 25 5 2 Tractor Ballast cccceeeeeeeeeeeeeeeeeeeeees 26 5 3 Installation ccecceccecceeeeeeeeeeeeeeseeeeaeees 26 5 4 Hydraulic Hookup cc eeeeeeeeeeeeeeereeeeeetees 26 5 5 Valve Mounting M146 Small Valve 27 5 6 Valve Mounting M146 Series Valve 28 5 7 Valve Mounting M246 Small Valve 29 5 8 Valve Mounting M246 Series Valve 30 5 9 Power Beyond KIE carreres cerieisa 31 5 10 Mounting Bracket Eyebolt 32 5 11 Standard Bucket amp Level Indicator Rod 32 5 12 Skid Steer Quick Hitch n 33 5 13 Fork Lift Option mmnnna 33 Safety DEGAS 41244 creeks sechadethes vn kukkia tarka 34 Torque Specifications mrrena 36 RETAIL CUSTOMER S RESPONSIBILITY UNDER THE BUSH HOG WARRANTY It is the Retail Customer and or O2. on appropriate sides of guick couplers M ss Sieeve ua aka a 5 fitting should point toward front of loader VALVE STAND ASSEMBLY VALVE TO VALVE MOUNT ASSEMBLY 50031318 Valve Mount to Mount Bracket L H 50029341 Valve Mount n He ieee Series Valve Decal 1 3 8 Hex Nut 50031318 Valve Mount 50031317 Valve Mount to Mount Bracket R H 5 Mount Bracket L H 1 3 8 x 1 Capscrew E 1 3 8 Flatwasher 50028958 1 3 8 Lockwasher SY gt Series Valve 1 3 8 Hex Nut lt Mount Bracket R H to Loader Bracket to Mount Bracket L H 1 1 2 x 1 3 4 Capscrew 1 1 2 Lockwasher 1 1 2 Hex Nut Mount Bracket R H to Loader N Bracket Valve Mount to Valve Bracket to Mount Bracket L H 3 5 16 x 1 Capscrews 1 1 2 x 2 Capscrew 3 5 16 Lockwashers 1 2 Flatwashers a 3 5 16 Flatwashers 1 1 2 Lockwasher 50031316 1 1 2 Hex Nut Mount Bracket R H M246 LOADER VALVE MOUNTING INSTRUCTIONS FOR WALVOIL VALVE 50029340 SMALL VALVE 8 MOUNT KIT HYDRAULIC ATTACHMENT VALVE PLUMBING ASSEMBLY 25449978 Small Walvoil Valve 25442220 3050137 4 Straight Adaptors Male Adaptor 25442696 Straight Adapter 4 Dust Plugs Color Coded 4 Dust Caps Color Coded 25446125 Hose Sleeve VALVE STAND ASSEMBLY Valve Mount to Mount Plate R H 3 8 x 1 Capscrew Valve Mount to Mount Plate L H 1 3 8 x 1 Capscrew 3 8 Flatwasher 1
3. For valve and stand mounting refer to VALVE MOUNTING INSTRUCTIONS on pages 27 30 Refer to individual instructions that come with the various other valve and control options IMPORTANT When properly installed the tractor remote valve or external valve control lever levers will control the loader hydraulic circuits as described in Sections 3 4 3 8 Refer to tractor Operator s Manual for further explanation of tractor remote control lever levers M146 LOADER VALVE MOUNTING INSTRUCTIONS FOR WALVOIL VALVE 50032442 SMALL VALVE 8 MOUNT KIT HYDRAULIC ATTACHMENT VALVE PLUMBING ASSEMBLY 25H49978 Small Walvoil Valve 25H42220 25H42227 3050137 4 Straight Adaptors 4 Male Pipe Nipples Male Adaptor 25H42225 52161 AN 4 Quick Couplers 5 Cable Ties 50031124 4 Male 45 Elbows D Ob E CN NG Red Rod End of Liit Cylinder py bee n Blue Base End of Liit Cylinder 25442696 n lt Straight Adaptor N Yellow Rod End of Bucket Cylinder 25613603 Green Base End of Bucket Cylinder 3 Male Unions 4 Dust Plugs a OV Connect to metal Color Coded J y N lines on loader 4 Dust Caps Color Coded Note Install color coded dust caps and plugs 25446125 i i on appropriate sides of guick couplers Hose Sleeve kka valan Flow kr on fitting should point toward front of loader VALVE STAND ASSEMBLY VALVE TO VALVE MOUNT ASSEMBLY 50031318 Valve Mount to Mount Bracket L H Valve Mount 1 3 8 x 1 Capscrew 254
4. 3 8 Lockwasher 1 3 8 Hex Nut 1 1 1 3 8 Lockwasher 1 3 8 Hex Nut 50029327 D Mount Plate L H S gt 50029329 Valve Mount Loader Bracket Mount Plate R H to Loader Bracket to Mount Plate L H 1 1 2 x 2 Capscrew 1 1 2 Lockwasher 1 1 2 Hex Nut 50029328 Mount Plate R H Mount Plate R H to Loader Bracket to Mount Plate L H 1 1 2 x 2 1 4 Capscrew 2 1 2 Flatwashers 1 1 2 Lockwasher 1 1 2 Hex Nut 25H42227 4 Male Pipe Nipple 25H42225 4 Quick Couplers 50031124 4 Male 45 Elbows Red Rod End of Lift Cylinder Blue Base End of Lift Cylinder Yellow Rod End of Bucket Cylinder Green Base End of Bucket Cylinder 52161 5 Cable Ties 25H40043 4 Male Unions 50029334 4 Hydraulic Hoses VALVE TO VALVE MOUNT ASSEMBLY 25H41276 Valve Decal 50029329 Valve Mount 25H49978 Small Walvoil Valve Valve Mount to Valve 4 5 16 x 1 Capscrews 4 5 16 Lockwashers 4 5 16 Flatwashers M246 LOADER VALVE MOUNTING INSTRUCTIONS FOR WALVOIL VALVE 50029330 SERIES VALVE amp MOUNT KIT HYDRAULIC ATTACHMENT VALVE PLUMBING ASSEMBLY 50028958 25442220 2542227 Series Valve 3050137 4 Straight Adaptors 4 Male Pipe Nipple Male Adaptor 25442225 4 Quick Couplers 52161 50031124 5 Cable Ties 4 Male 45 Elbows Red Rod End of Lift Cylinder Blue Base End of Lift Cylinder 50029345
5. BEEN FILED WITH BUSH HOG SELMA ALABAMA DATE OF RETAIL SALE DEALER PREPARATION CHECK LIST M146 8 M246 LOADERS BEFORE DELIVERING MACHINE The following check list should be completed Use the Operator s Manual as a guide Machine properly assembled All safety decals readable See decal page All bolts tightened to torque specifications given in torque chart Machine operates properly Customer has appropriate mounting kit for his tractor and loader Co oO O OU oO L Customer has appropriate attachments for loader operations Buckets for lifting loose materials bale spear for lifting round bales fork lift for lifting palletized material A CAUTION A IT IS RECOMMENDED THAT TRACTOR BE EQUIPPED WITH ROLLOVER PROTECTIVE SYS TEM ROPS AND SEAT BELT BE USED FOR ALL LOADER OPERATIONS 1 Operators manual has been delivered to owner and he has been instructed on the safe and proper use of the front end loader Dealer s Signature THIS CHECK LIST TO REMAIN IN OPERATOR S MANUAL It is the responsibility of the dealer to complete the procedures listed above before delivery of this implement to the customer Safety Alert Symbol This Safety Alert Symbol means ATTENTION BECOME ALERT YOUR SAFETY IS INVOLVED This symbol is used to call attention to safety 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 advi
6. FAKS AAE KOT IHMEHIKED FOR UGE WITH LARGE OBJECTS SUCH Ag BOUND HAY BALES OF OTHER TERS WHICH MAT ROLL BACK WANDS AND PALL CAUSING IKJUAT TO THE OPERATOR LIN ory obfeoie Tart me wiihis fhe slated W capaciiy cf fe koader Refer lo pour cers manuals lor the loader ond for wela ork mtinokmani for Inad limits ind othe s lelp tonik miumi 62779 A To avoid serious injury or death Read operator manual and decals before operating Follow all safety operating and service instructions Contact dealer for replacement Allow no children or ungualified persons to operate equipment ROPS Roll Over Protective Structure and seat belt equipped tractors are recommended for operator use in all loader operations Add recommended wheel ballast or rear weight for stability Move wheels to widest recommended settings to increase stability Operate loader only from Operator Seat Lower attachment or loader boom to ground stop engine lock brakes relieve hydraulic pressure and remove key before leaving operators seat Do not stand work or allow others under raised loader Move and turn tractor at low speeds Avoid tipping by careful operation near loose fill rocks holes and when working on inclines Carry loader arms at a low position during transport Do not lift or carry anyone on buckets forks probes or any other portion of the loader or loader attachments Operator should wear safety hard hat safety glass
7. and storage of eguipment Lack of attention to safety can result in accident personal injury reduction of efficiency and worst of all loss of life Watch for safety hazards and correct deficiencies promptly Use the following safety precautions as a general guide to safe operations when using this machine Additional safety precautions are used throughout this manual for specific operating and maintenance procedures Read this manual and review the safety precautions often until you know the limitations THE TRACTOR 1 Read the tractor operator s manual to learn how to operate your tractor safely Failure to do so could result in seri ous injury or death and eguipment damage 2 It is recommended that tractor be equipped with Rollover Protective System ROPS and a seat belt be used for all loader operations 3 Add wheel ballast or rear weight for stability 4 Move wheels to the tractor manufacturer s widest recommended settings to increase stability 5 For better stability use tractor with wide front axle rather than tricycle front wheels 6 Move and turn the tractor at low speeds 7 Stop tractor engine place transmission in park or neutral engage parking brake lower loader arms to ground cycle all hydraulic controls to relieve pressure allow machine moving parts to stop remove ignition key to prevent unauthorized person from starting engine before dismounting tractor or servicing repairing or making adjustments to the eq
8. backward using bucket cylinder so that bottom of attachment will swing into position Rotate handles downward locking spring loaded pins into place in slot on attachment hitch for operation To dismount the attachment Tilt quick hitch backward and rotate handles up to disengage pins Reverse the mounting procedure A caution A ALWAYS CHECK TO INSURE THAT QUICK HITCH SPRING LOADED PIN IS IN THE LATCHED POSITION BEFORE OPERATING LOADER OR ACCINDENTAL DISENGAGE MENT OF THE ATTACHMENT COULD RESULT Quick Hitch Tilted Forward Spring Loaded Pins Raised C Raise And Roll Back Attachment D Lower Spring Loaded Pins 21 SECTION IV MAINTENANCE 4 1 MAINTENANCE CHECK LIST Perform scheduled maintenance as outlined below Lower machine to ground turn off tractor and set parking brake before doing maintenance inspections or work All bolts should be torqued as recommend ed in torque chart unless otherwise indicated 3 A warnine THE LOADER CAN FALL FROM HYDRAULIC SYSTEM FAILURE TO AVOID SERIOUS INJURY OR DEATH SECURELY SUPPORT LOADER BEFORE WORKING UNDERNEATH BEFORE EACH USE Inspect hydraulic lines and fittings for wear or leaks Repair or replace if needed Inspect all pivot pins for wear Make certain car riage bolts lockwashers and hex nuts are installed to retain each pivot pin Check all bolts for tightness Perform BEFORE EACH USE lubrication per paragraph 4 2 During
9. boom can fall from en mts system failure To avoid serious injury or death Block up or securely support loader and boom before working underneth Purge all air from hydraulic system before attempting to raise or lower loader or boom Stand clear if lowering or raising loader or boom Do not use hand or skin to check for hydraulic leaks Use cardboard or wood Wear eye protection High pressure oil leaks can penetrate skin causing serious injury and gangrene Consult a physician immediately Lower loader or boom and release hydraulic pressure before loosening fittings Refer to operator manual for details DTI 50100231 A WARNING TO AVOID SERIOUS INJURY OR DEATH Use sufficient tractor wheel ballast or rear weight and widest wheel settings for tractor stability during loader operation See tractor owner s manual for specific recommendations or contact local dealer To avoid tractor overturn Do not handle large heavy objects large round bales machinery etc with loader See owners manual for further information 2441586 24441969 Do noj operate withoul oomirmaton that coupler pins are fully engaged Loader otinohmment oam fall off ff not property attmoked To avoid earbsa injury or demih Oriy iba hoaia mamaaa appa aachia Read al openers merung ard dees hel Speer at re Fail m al coal Opening amd sence instructor gnat dealer fo monema pare 50100907 4 WARNING THESE
10. bucket in the dumped position for bulldozing or backgrading This method shown above will impose severe shock load ings on the dump linkage the bucket cylinder and the tractor HANDLING LARGE HEAVY OBJECTS A warninc A Do not use front end loaders for handling large heavy objects such as large round or rectangu lar bales logs and oil drums Handling large heavy objects can be extremely dangerous due to Possibility of rolling the tractor over Possibility of upending the tractor Leave dirt in the bucket because dumping on each pass wastes time Possibility of the object rolling or sliding down the loader arms onto the operator 3 14 TRANSPORTING When transporting on road or highway day or night use tractor flashing warning lights unless pro hibited by law Carry load as low as possible main taining adequate ground clearance and visibility Reduce tractor ground speed when transporting a load Take extra care when traveling over rough SOIL PILE kd terrain or on slopes A caution A WHEN TRANSPORTING THE LOAD KEEP THE BUCKET AS LOW AS POSSIBLE TO RESIST TIP PING IN CASE A WHEEL DROPS IN A RUT THIS WILL AVOID TIPPING AND POSSIBLE INJURY Operate at right angles to the ditch Take as big a bite as the tractor can handle without lugging down NOTE When loader hydraulics are disconnected from tractor the tractor hydraulic circuit must be completed Failure to do so will result in tractor hyd
11. loader on a hard level surface The more level the surface the easier the loader is to mount and dismount B Raise loader dump bucket over and then lower loader so that bucket cutting edge is approxi mately 1 2 off of ground C Remove parking stands from their storage positions in the boom crosstube as shown in Figure 2 8 D Position parking stands in attaching brackets on inside of each loader arm and secure Figure 2 9 Figure 2 9 Parking Stands Installed Attaching Bracket Parking Stands With Flat Side Down E Dismounting procedures will be the reverse of the mounting procedure Refer to Figures 2 3 2 7 Remove self storing tool from holder Remove quick attach nut and lockwasher from eyebolt using self storing tool Remove quick pin and clamp from work ing position Place clamp and quick pin in storage position Store lockwasher quick attach nut and self storing tool in holder F Rollback bucket slightly while lowering loader boom down until the parking stands make firm con tact with ground Dump bucket until bucket touches the ground NOTE Driving the tractor forward slowly while position ing loader will allow parking stands to contact ground firmly G Retract loader lift cylinders H Slowly rollback bucket while driving slightly forward with tractor Doing this will allow mounting brackets to guide loader as loader is being parked off of tractor Rollback bucket completely Make sure all loa
12. possible damage 14 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 equipment moving parts BEFORE OPERATING THE EQUIPMENT IF YOU HAVE ANY QUESTIONS REGARDING THE PROPER ASSEMBLY OR OPERATION CON TACT YOUR AUTHORIZED BUSH HOG DEALER OR REPRESENTATIVE A caution A EQUIP YOUR TRACTOR WITH A ROPS CAB OR FRAME FOR YOUR PROTECTION SEE YOUR TRACTOR ROPS OPERATOR S MANUAL FOR CORRECT SEAT BELT USAGE Read entire instructions before beginning to install the loader Personal injury and machine damage may be prevented if you read and understand these instructions and special safety messages Any reference to right or left are as if you were in the tractor seat facing forward 5 1 TRACTOR PREPARATION Use front tires of equal size and maintain equal pres sure in each tire The pressure of the front tractor tires must be increased to the maximum approved pressure recommended by the tire manufacturer to compensate for additional load placed on the tires with the front end loader Refer to your Tractor Operator s Manual Adjust the front tires to the widest recommended setting on adjustable models for maximum stability Front end weights must NOT be used while loader is on the tractor Pay particular attention to minimum tread settings infromation in Installation Inst
13. 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 Steiger Occupational and Health Act of 1970 OSHA This Act Seeks to assure so far as possible every working man and woman in the nation safe and healthful working conditions and to preserve our human resources DUTIES Sec 5 a Each employer 1 shall furnish to each of his employees employment and a place of employment which are free from recognized hazards that are causing or are likely to cause death or serious physical harm to his employees 2 shall comply with occupational safety and health standards promulgated under this Act b Each employee shall comply with occupational safety and health standards and all rules regulations and orders issued pursuant to this Act which are applicable to his own actions and conduct OSHA Regulations Current OSHA regulations state in part At the time of initial assignment and at least annually thereafter the employer shall instruct every employee in the safe operation and servicing of all equipment with which the employee is or will be involved These will include but are not limited to instructions to Keep all guards in place when the machine is in operation Permit no riders on equipment Stop engine disconnect the power source and wait for all machine movement to stop before servicing adjusting cleaning or unclogging t
14. the system and the system responds properly Figure 3 3 Bucket Level Indicator Rod Guide Tube 3 12 HOSE IDENTIFICATION Metal lines on the loader are color coded Check loader functions Refer to instruction sheets for hydraulic valve option on your loader 3 13 BUCKET LEVEL INDICATOR ROD A bucket level indicator rod Figure 3 3 located on the loader frame can be used to determine bucket angle Before beginning work observe the position of indicator rod with the bucket flat on the ground Raise boom to several different positions and oper ate the bucket cylinders Observe the indicator rod Once familiar with the indicator rod positions opera tion of the loader will be easier and more efficient The text and illustrations on the following pages offer suggested loader and tractor operating techniques The text and illustrations that follow offer suggested loader and tractor operating technigues FILLING THE BUCKET The lift and rollback of the bucket will increase Approach and enter the pile with a level bucket efficiency because DO THIS Ease lever back and toward you to lift and rollback a level bucket throughout the lifting cycle resists the bucket bucket lift and increases breakaway effort NOT THIS 1 LEVER CONTROL NOTE Do not be concerned if the bucket is not com pletely filled during each pass Maximum productivi ROLLBACK ty is determined by the amount of material loaded in a given p
15. 0 11 12 13 14 15 SAFETY PRECAUTIONS CONTINUED Before disconnecting hydraulic lines relieve all hydraulic pressure Do not tamper with the relief valve setting The relief valve is pre set at the factory Changing the setting can cause overloading the loader and tractor and serious operator injury may result Always wear safety goggles when repairing or servicing machine When servicing or replacing pins in cylinder ends buckets etc always use a brass drift and hammer Failure to do so could result in injury from flying fragments Replace damaged or illegible safety decals See decal page for required decals Do not modify or alter or permit anyone else to modify or alter the loader any of its components or any loader function without first consulting your local dealer OPERATING THE LOADER 11 12 13 14 15 16 17 It is the loader owner s responsibility to instruct and have a person read operator s manual safety decals and become familiar with machine controls before allowing them to operate loader Do not allow children to operate the loader Before starting or operating the equipment make a walk around inspection and check for loose or damaged components Correct any deficiency before starting Keep the area of operation clear of all persons particularly small children The operator should cease operation whenever anyone comes within the operating area Operate the loader from the
16. 1 1 INTRODUCTION We are pleased to have you as a Bush Hog cus tomer Your Front End Loader 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 front end loader in top operating condition Please read this manual thoroughly Understand what each control is for and how to use it Observe all safety precautions decaled on the machine and noted throughout the manual for safe operation of this implement If any assistance or additional information is needed contact your autho rized Bush Hog dealer Mainframe Boom Parking Stands Stored Subframe Boom Cylinder 1 2 DESCRIPTION Model M146 amp M246 Front End Loaders are designed for two wheel and four wheel drive trac tors They come equipped with parking stands to support the loader so the tractor can be driven in for quick attachment and a bucket level indicator that allows the operator to gauge bucket position when the bucket cannot be seen Available attachments include buckets for lifting loose materials and a fork lift M246 Models only for palletized material All operations should be conducted within the loader limits specified in Table 1 1 Table 1 1 TECHNICAL SPECIFICATIONS SERIES LOADER M246 M146 A Maximum Lift Height Measured at Pi
17. 41276 1 3 8 Lockwasher Valve Control Decal 1 3 8 Hex Nut 50031317 50031318 Valve Mount Valve Mount to Mount Bracket R H Mount Bracket L H a a 25H49978 1 3 8 x 1 Capscrew ds 1 3 8 Flatwasher g Small Walvoil Valve 1 3 8 Lockwasher 1 3 8 Hex Nut Mount Bracket R H to Loader Bracket to Mount Bracket L H 1 1 2 x 1 3 4 Capscrew 1 1 2 Lockwasher 1 1 2 Hex Nut Mount Bracket R H to Loader 8 Bracket Valve Mount to Valve Bracket to Mount Bracket L H o 2 E x Ava 1 1 2 x 2 Capscrew a 1 2 Flatwashers 3 5 16 Flatwashers 2 1 1 2 Lockwasher 50031316 1 1 2 Hex Nut Mount Bracket R H M146 LOADER VALVE MOUNTING INSTRUCTIONS FOR WALVOIL VALVE 50032443 SERIES VALVE amp MOUNT KIT HYDRAULIC ATTACHMENT VALVE PLUMBING ASSEMBLY 50028958 25H42220 25H42227 Series Valve 3050137 4 Straight Adaptors 4 Male Pipe Nipples Male Adaptor Oo 25H42225 ON 4 Quick Couplers 52161 50031124 5 Cable Ties 4 Male 45 Elbows gt je SACs NE Red Rod End of Lift Cylinder Nee lt NMG gt Poi lt Blue Base End of Lift Cyli a 4 y ue Base End of Lift Cylinder 50029345 Cs Check Valve 2 lt Yellow Rod End of Bucket Cylinder 2561 3603 Green Base End of Bucket Cylinder 3 Male Unions 4 Dust Plugs Oe Connect to metal Color Coded D ND lines on loader 4 Dust Caps Color Coded Note Install color coded dust caps and plugs 25H46125
18. 6 1 3 8 6 UNC 1470 1992 2382 3228 2 1 16 1 3 8 12 UNF 746 1011 1672 2266 2712 3675 2 1 4 1 1 2 6 UNC 870 1179 1950 2642 3161 4283 2 1 4 1 1 2 12U 979 1327 2194 2973 3557 4820 Use 75 of the specified torque value for plated fasteners Use 85 of the specified torque values for lubricated fasteners Proper torque for metric fasteners used on Bush Hog equipment Recommended torque in foot pounds newton Meters WRENCH SIZE ASTM mm A 10 9 8 6 5 8 8 10 11 1 15 13 27 37 16 53 72 18 93 126 21 148 201 24 230 312 30 449 608 33 611 828 36 778 1054 41 821 1138 1542 46 iR E 1547 2096 BUSH HOG P O Box 1039 e Selma AL 36702 1039 Telephone 334 874 2700
19. BLE MEANS PRIOR TO REMOVING BANDS OR ATTACHING STRAPS SECUR ING LOADER TO PALLET FAILURE TO DO SO COULD RESULT IN ACCIDENTAL TIP OVER OF THE LOADER THAT COULD CAUSE SERIOUS INJURY TO YOU AND OR BYSTANDERS Position the tractor on a hard level surface Install mounting brackets on tractor as shown in Installation Instructions included with your Mounting Kit For ease of handling bracket insert chain hook into bracket hole Using hoist raise and tilt bracket aligning mounting kit holes Figure 5 1 26 Tighten all bolts equally during installation so that outside surface of brackets are level and the center line measurement from right to left hand mounting brackets Dimension A reads 32 plus or minus 1 4 for M146 or 37 plus or minus 1 4 for M246 Figure 5 1 Figure 5 1 Bracket Hole Mounting Bracket IMPORTANT To prevent mounting kit hardware from loosen ing during operation always torque mounting kit hardware to specified torque noted in Loader Operator s Manual IMPORTANT If external valve is to be used mount valve stand assembly pages 27 30 to loader bracket before installing loader to the loader bracket Bolts can not be installed once loader is in place Remove all loader components from shipping pack aging 5 4 HYDRAULIC HOOKUP For use with tractor hydraulic valve install hoses to loader steel tubing Install male quick couplers cus tomer furnished to free ends of hoses
20. BUSH HOG Front End Loaders M146 M246 ASSEMBLY g OPERATION MAINTENANCE 401 4 00 50029373 CONGRATULATIONS You have invested in the best implement of its type on the market today The care you give your Bush Hog implement will greatly determine your satisfaction with its performance and its service life We urge a careful study of this manual to provide you with a thorough understanding of your new implement before operating as well as suggestions for operation and maintenance If your manual should become lost or destroyed Bush Hog will be glad to provide you with a new copy Order from Bush Hog P O Box 1039 Selma Alabama 36702 1039 As an authorized Bush Hog dealer we stock genuine Bush Hog parts which are manufactured with the same precision and skill as our original equipment Our trained service personnel are well informed on methods required to service Bush Hog equipment and are ready and able to help you Should you require additional information or assistance please contact us YOUR AUTHORIZED BUSH HOG DEALER BECAUSE BUSH HOG MAINTAINS AN ONGOING PROGRAM OF PRODUCT IMPROVEMENT WE RESERVE THE RIGHT TO MAKE IMPROVEMENTS IN DESIGN OR CHANGES IN SPECIFICATIONS WITH OUT INCURRING ANY OBLIGATION TO INSTALL THEM ON UNITS PREVIOUSLY SOLD BECAUSE OF THE POSSIBILITY THAT SOME PHOTOGRAPHS IN THIS MANUAL WERE TAKEN OF PROTOTYPE MODELS PRODUCTION MODELS MAY VARY IN SOME DETAIL IN ADDITION SOME PHOTOGRAP
21. Check Valve 2 1 A Yellow Rod End of Bucket Cylinder 25440043 X Green Base End of Bucket Cylinder 4 Male Unions lt g Connect to metal i Dus ies V D a on loader l 4 Dust Caps 48 Color Coded Z MIK 50029334 25446125 4 Hydraulic Hoses Hose Sleeve VALVE STAND ASSEMBLY VALVE TO VALVE MOUNT ASSEMBLY Valve Mount to Mount Plate R H Valve Mount to Mount Plate L H 3 8 x 1 Capscrew 1 3 8 x 1 Capscrew 3 8 Flatwasher 1 3 8 Lockwasher 1 1 1 50029341 t a ld 3 8 Hex Nut Series Valve Decal 50029327 T Mount Plate L H 50029329 Valve Mount Loader Bracket Mount Plate R H to Loader gt 8 S Bracket to Mount Plate L H OB X lt e 50028958 1 1 2 x 2 Capscrew Sx Series Valve 1 1 2 Lockwasher X 1 1 2 Hex Nut 50029328 Mount Plate R H Mount Plate R H to Loader ount Plate Bracket to Mount Plate L H A Valve Mount to Valve Nisan 4 5 16 x 1 Capscrews 2 4 5 16 Lockwashers ti io ri 4 5 16 Flatwashers 5 9 POWER BEYOND KIT This Kit is provided to relieve excessive pressure on loader control valve when other implements are used while loader is still attached to tractor Kit Includes DESCRIPTION Power Beyond Plug Assy Elbow 90 9 16 ORB to 9 16 JIC Hydraulic Hose 1 4 9 16 JIC Female Straight Fitting 9 16 JIC male to 3 8 Pipe male Quick Coupler Assy NOTE Use the Power Beyond P
22. HS MAY SHOW SHIELDS REMOVED FOR PURPOSES OF CLARITY NEVER OPERATE THIS IMPLEMENT WITHOUT ALL SHIELDS IN PLACE M146 M246 Front End Loader TABLE OF CONTENTS SECTION PARA PAGE Warranty ois dares eine ins ee eke aa 2 Dealer Preparation Check List 3 Safety Alert Symbols 0mmnameenenena 4 Safety Precautions enerne 5 Federal Laws 8 Regulations 7 INTRODUCTION 8 DESCRIPTION 8 1 1 Introduction manenann 8 1 2 Descriptors arana i n 8 Il LOADER MOUNTING amp DISMOUNTING 10 2 1 Preparing Tractors deterrere 10 2 2 Mounting Loader mee 10 2 3 Dismounting Loader 12 OPERATING INSTRUCTIONS 13 3 1 General Safety mrmnameni 13 3 2 Pre Operation s an 13 3 3 Initial Loader Operation 13 3 4 External Loader and or Tractor Valve 14 3 5 Loader Mounted or Tractor Mounted Single Lever Control Handle 14 3 6 Loader Mounted or Tractor Mounted Two Control Hando Sisi naea na 14 3 7 Neutral Position menn 14 3 8 Float Position wnennann 14 3 9 Loader Sense Loader Valve 14 3 10 Loader Operation 15 3 11 Removing Air From Hydraulic System 15 3 12 Hose Identification
23. Insert fork support rods through main frame and fork tubes Secure in place with roll pins PO Pin 28 Support Rod QUICK HITCH MODEL For attaching to loader mounted quick hitch assembly 33 SAFETY DECALS To promote safe operation Bush Hog supplies safety decals on all products manufactured Because damages can occur to safety decals either through shipment use or reconditioning Bush Hog will upon reguest provide safety decals for any of our products in the field at no charge Contact your authorized Bush Hog dealer for more information Decals 50100231 50100233 50100234 and 24441969 are located on the left side of the subframe and the mounting kit Decal 50100238 is located on the lift and bucket cylinders and decal 50100243 is located on the hose shield Other decals are located on attachments Bucket Fork Lift etc AWARNING A WARNING To avoid serious injury or death Do not lift or carry anyone on buckats forks probes or any other portion of the loader or loader attachments Inadvertent movement of the loader or attachment could result in serious injury or death Avoid contact with electrical power lines by loader or attachment 50100233 500100233 Be sure to purge all the air fram the hydraulic system before attempting to raise or lower this machine Referto operators manual for further details 50100238 50100238 LIVE WIRES OVERHEAD 34 Raised loader or
24. Operator s Seat Only Exercise caution when operating the loader with a raised loaded bucket fork or large round hay bale handling attachments Avoid loose fill rocks and holes They can be dangerous for loader operation or movement Be extra careful when working on inclines Allow for the loader length when making turns Stop the loader arms gradually when lowering or lifting Use caution when handling loose or shiftable loads Carry loader arms at a low position during transport Lower loader arms stop engine and lock brakes before leaving the tractor seat Operate the loader controls only when properly seated at the controls Do not use loader for handling large heavy objects such as logs oil drums etc Handling large heavy objects is dangerous due to Possibility of rolling the tractor over Possibility of upending the tractor Possibility of the object rolling or sliding down the loader arms onto the operator Use large round hay bale handler attachment with bale retaining devices grapples bale spears clamps etc to handle large round hay bales Failure to use retaining devices could allow round hay bales to roll or fall down loader boom arms onto the operator causing serious injury or death and equipment damage IMPORTANT FEDERAL LAWS AND REGULATIONS CONCERNING EMPLOYERS EMPLOYEES AND OPERATIONS This section is intended to explain in broad terms the concept and effect of the following federal laws and
25. WD Based On Tractor Hydraulic System Pressure 2000 psi 1875 psi Flow 10 gpm 6 0 gpm SECTION Il LOADER MOUNTING AND DISMOUNTING 2 1 PREPARING TRACTOR Figure 2 1 A caution A TRACTORS THAT HAVE MOVABLE AXLES 4 MUST BE SET FORWARD IN THE LONG WHEEL eS eee BASE POSITION AS SHOWN IN FIGURE 2 1 TO PREVENT EXCESSIVE LEVERAGE BEING EXERTED ON THE TRACTOR FRAME FAILURE TO DO SO CAN RESULT IN PERSONAL INJURY AND EQUIPMENT DAMAGE REFER TO TRAC TOR OPERATOR S MANUAL FOR ABOVE PRO CEDURES AND SPECIFICATIONS FOR YOUR TRACTOR A Check air pressure in tractor tires to be sure it is adequate for heavy loads B Add rear wheel weights fluid in tires or equiv alent to provide sufficient tractor stability C It is recommended that tractor wheels be Figure 2 2 Apply Grease To These Areas moved to the widest settings D Check tractor hydraulic oil reservoir to be sure 5 V itis fU lll aan 7 E Refer to your tractor operator s manual for 4 d above procedures and specifications for your tractor 2 2 MOUNTING LOADER F To aid in mounting and dismounting loader apply a small amount of grease if needed to each loader bracket in area of top receiver and guide Figure 2 2 i ie Short Wheelbase gt Long Wheelbase _____ A Slowly drive tractor to a position where the hoses can be connected to the quick couplers Stop the engine Figure 2 3 Connect the loader hydraulic hoses to the correc
26. and keep the bucket as low as possible This keeps the bucket and tractor center of gravity low and will provide maximum tractor stability ROLLBACK OPERATING WITH FLOAT CONTROL During hard surface operation keep the bucket level and put the lift control in the float position to permit the bucket to float on the working surface If hydraulic down pressure is exerted on the bucket it will wear faster than normal Sidecutting is a good technique for cutting down a big pile The float will also prevent the mixing of surface material with stockpile material The float position will reduce the chance of surface gouging when removing snow or other material If the pile sides are too high and liable to cause cave in use the loader to break down the sides until a slot can be cut over the top SURFACE MATERIAL wS B a kb 77 N n D LOADING FROM A BANK iw Choose a forward gear that provides sufficient ned i ground speed for loading SR Another method for large dirt piles is to build a ramp approach to the pile Exercise caution when undercutting high banks Dirt slides can be dangerous Load from as low as possi It is important to keep the bucket level when ble for maximum efficiency Loader lift and breakaway approaching a bank or pile This will help prevent capacity diminish as loading height is increased gouging the work area 18 PEELING AND SCRAPING Use a slight bucket angle travel f
27. ays torque mounting kit hardware to specified torque Support the loader by using a hoist Refer to Mounting The Loader page 10 to install the loader to mounting brackets previously installed on tractor A caution A LIFT AND SUPPORT ALL LOADER COM PONENTS SAFELY 5 11 STANDARD BUCKET amp LEVEL INDICATOR ROD A Attach boom and hydraulic cylinders to bucket using fasteners provided as shown in Figure 5 3 B Place indicator rod through guide tube and posi tion as shown Level Indicator Rod and guide tube may be mounted on the inside or outside of boom as desired Attach guide tube to mainframe using 1 4 bolt flat washer and lock nut Do not over tighten 1 4 locknut as this will prevent guide tube from piv oting freely C Attach lower end of indicator rod to bucket brack et using cotter pins and flat washers Figure 5 3 Hydraulic Cylinder Level Indicator Rod Bucket Pins amp a Fasteners Standard Bucket 5 12 SKID STEER QUICK HITCH M246 Only Skid Steer Quick Hitch Attach the boom and hydraulic cylinders to the quick hitch assembly using the fasteners pro vided as shown at right The bucket level indi cator rod is attached as explained in the previ ous section for the standard bucket Hole For Level Indicator Rod Pin Hydraulic Cylinder s lt Standard Model For attaching directly to the 5 13 FORK LIFT OPTIONS loader boom and hydraulic cylinders M246 Only
28. ce Failure to comply with safe ty precautions could result in death or serious bodily injury Safety Signs Signal Words The signal words DANGER WARNING AND CAUTION are used on the eguipment safety signs These words are intended to alert the viewer to the existence and the degree of hazard seriousness This signal word indicates a potentially hazardous situation which if not avoided will result in death or serious injury White letters on RED This signal word indicates a potentially hazardous situation WAR N N G which if not avoided could result in death or serious injury It may also be used to alert against unsafe practices Black letters on ORANGE This signal word indicates a potentially hazardous situation exist CAUTION which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices Black letters on YELLOW IMPORTANT SAFETY PRECAUTIONS 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 death or serious bodily injury In addition to the design and configuration of eguipment hazard control and accident prevention are dependent upon the awareness concern prudence and proper training of personnel in the operation transport maintenance
29. der components clear tractor Stop the tractor engine and then work valve control lever levers to relieve hydraulic fluid pressure in lines Refer to tractor operator manual for additional information Figure 2 10 Backing Tractor Away From Loader J Disconnect loader hoses from quick couplers Start tractor and slowly back tractor away from loader Figure 2 10 IMPORTANT To avoid hydraulic hose damage be alert and make sure hoses do not catch on tractor and or loader during mounting or dismounting A warning A MAKE SURE PARKED LOADER IS ON A HARD LEVEL SURFACE ENGAGE ALL SAFETY DEVICES TO PREVENT LOADER FROM FALLING AND BEING DAMAGED OR INJURING SOMEONE DO NOT REPAIR LOADER IF IT IS NOT MOUNTED ON THE TRACTOR LOSS OF HYDRAULIC FLUID OR REMOVAL OF PARTS COULD CAUSE LOADER TO COLLAPSE RESULTING IN INJURY SECTION Ill OPERATING INSTRUCTIONS 3 1 GENERAL SAFETY 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 loader to avoid serious injury or death It is recommended that tractor be equipped with Rollover Protective System ROPS and a seat belt be used Check for ditches stumps holes or other obstacles that could upset tractor or damage loader Always turn off tractor engine set par
30. er for a short period of time then retighten the guick attach nuts Check nuts for tightness during normal maintenance H Remove parking stands from the parked posi tion and return them to their storage positions in the cross tube Secure parking stands in the storage position by using pins Figure 2 8 Figure 2 8 Parking Stands Preparing To Store Stands Stands In Stored Position Pin Through Cross Tube Will Secure Stands In Place Lower loader to ground and secure loader hydraulic hoses in a protected area IMPORTANT To avoid hydraulic hose damage be alert and make sure hoses do not catch on tractor and or loader during mounting or dismounting 2 3 DISMOUNTING LOADER A caution A ALWAYS PARK LOADER WITH MATERI AL BUCKET OR AUTHORIZED BUSH HOG ATTACHMENT ATTACHED TO THE LOADER A caution A BEFORE LEAVING THE TRACTOR SEAT LOWER ATTACHMENT OR LOADER BOOM TO GROUND STOP ENGINE LOCK BRAKES RELIEVE HYDRAULIC PRESSURE AND REMOVE KEY 12 A caution A DO NOT STAND WALK OR WORK UNDER A RAISED LOADER OR ATTACHMENT UNLESS IT IS SECURELY BLOCKED OR HELD IN POSITION ACCIDENTAL MOVE MENT OF A CONTROL LEVER LEVERS OR LEAKS IN THE HYDRAULIC SYSTEM COULD CAUSE THE LOADER TO DROP OR ATTACHMENT TO DUMP CAUSING SEVERE INJURY A caution A DO NOT ALLOW BYSTANDERS IN LOADER AREA IMPORTANT Never allow weight of tractor to be placed on parking stands when mounting or dismounting loader A Position the
31. eriod of time Time is lost if two or more attempts are made to fill the bucket on each pass 16 LIFTING THE LOAD A caution A OPERATING THE LOADER ON A HILLSIDE A WARNING IS DANGEROUS EXTREME CARE IS DO NOT LIFT OR CARRY ANYONE IN THE RECOMMENDED BUCKET OR ON ANY OTHER POSITION OF THE LOADER OR LOADER ATTACH MENT INADVERTENT MOVEMENT OF THE LOADER OR ATTACHMENT COULD RESULT IN SERIOUS INJURY OR DEATH FROM FALLING OR CRUSHING A caution A MAKE SURE MATERIAL IN BUCKET CAN NOT THIS NOT ROLL OUT AND DOWN ON TRACTOR WHEN BUCKET IS RAISED TO FULL HEIGHT KEEP CLEAR OF OVERHEAD When transporting the load keep the bucket as low OBSTRUCTIONS SUCH AS TREES LIMBS as possible to avoid tipping in case a wheel drops OR POWER LINES WHEN RAISING THE into a rut BUCKET When lifting the load keep the bucket positioned to NOTTHIS avoid spillage n z E DO THIS DUMPING THE BUCKET Lift the bucket high enough to clear the side of the vehicle Move the tractor in as close to the side of the vehicle as possible then dump the bucket CARRYING THE LOAD Position the bucket just below the level of the tractor hood for maximum stability and visibility whether the bucket is loaded or empty LOWERING THE BUCKET After the bucket is dumped back away from the vehicle while lowering and rolling back the bucket FLOAT POSITION LOWER 1 LEVER CONTROL Use extreme caution when operating the loader on a slope
32. es safety shoes and other PPE Avoid wearing loose clothing or jewelry that may catch in moving parts 50100234 50100234 Wrench Size A Wrench Size A TORQUE SPECIFICATIONS Proper toque for American fasteners used on Bush Hog equipment Recommended Torque in Foot Pounds Newton Meters AMERICAN Bolt Head Markings SAE Grade 2 No Dashes 3 Dashes 6 Dashes Numbers appearing on bolt heads indicate ASTM class SAE Grade 5 SAE Grade 8 BOLT DIAMETER ESI WRENCH IN B AND SAE SAE SAE SIZE IN A THREAD SIZE GRADE 2 GRADE 5 GRADE 8 7 16 12 16 7 16 1 4 28 UNF 14 18 1 2 5 16 18 UNC 25 33 1 2 5 16 24 UNF 27 37 9 16 3 8 16 UNC 44 60 9 16 3 8 24 UNF 49 66 5 8 7 16 14 UNG 70 95 5 8 7 16 20 UNF 78 106 3 4 1 2 13 UNC 106 144 3 4 1 2 20 UNF 120 163 7 8 9 16 12 UNC 153 207 7 8 9 16 18 UNF 79 107 172 233 15 16 5 8 11 UNC 97 131 212 287 15 16 5 8 18 UNF 240 325 1 1 8 3 4 10 UNC 376 509 1 1 8 3 4 16 UNF 420 569 1 5 16 7 8 9 UNC 606 821 1 5 16 7 8 14 UNF 668 905 1 1 2 1 8 UNC 909 1232 1 1 2 1 12 UNF 995 1348 1 1 2 1 14 UNF 1019 1381 1 11 16 1 1 8 7 UNC 795 1077 1288 1745 1 11 16 1 1 8 12 UNF 890 1206 1444 1957 1 7 8 1 1 4 7 UNC 1120 1518 1817 2462 1 7 8 1 1 4 12 UNF 1241 1682 2013 2728 21 1
33. es for leaks damage or restrictions Replace damaged or restricted hoses or tube lines Quick couplers not properly connected Check connection Replace if necessary Control valve does not shift properly Inspect clean repair or replace valve Air in hydraulic system Cycle lift cylinders and bucket cylinders several times to free system of air Cylinder leaks internally Replace seals Faulty valve Repair or replace valve Loader chatters or vibrates when Air in hydraulic system Cycle lift cylinders and bucket cylinders raising or lowering Oil level too low Add oil as required Oil leaks Damaged fittings or hoses Replace damaged parts Loose connections Tighten fittings Worn or damaged O ring or Install a seal repair kit wiper seal in cylinder rod end Worn or damaged O rings in Install an O ring repair kit valve Insufficient lift capacity Load is greater Check loader specifications than boom lift capacity Check tractor system Internal boom cylinder leakage Replace any worn parts and install a seal repair kit Improper hydraulic valve Repair or replace valve operation Slow leakdown Worn control valve Have authorized Bush Hog dealer replace seals Worn cylinder piston seals Have authorized Bush Hog dealer replace seals Excessive wear on bottom of bucket Float position not used while Use float position provided on valve and wear pads operating loader Hydraulic cylinders inoperative Hose from control va
34. he equipment except where the machine must be running to be properly serviced or maintained in which case the employer shall instruct employees as to all steps and procedures which are necessary to safely service or maintain the equipment Make sure everyone is clear of machinery before starting the engine engaging power or operating the machine EMPLOYEE TRACTOR OPERATING INSTRUCTIONS 1 Securely fasten your seat belt if the tractor has a 5 Watch where you are going especially at row ROPS ends on roads and around trees 2 Where possible avoid operating the tractor near 6 Do not permit others to ride ditches embankments and holes 7 Operate the tractor smoothly no jerky turns 3 Reduce speed when turning crossing slopes and starts or stops on rough slick or muddy surfaces 8 Hitch only to the drawbar and hitch points recom 4 Stay off slopes too steep for safe operation mended by tractor manufacturers 9 When tractor is stopped set brakes securely and use park lock if available Child Labor Under 16 Years Old Some regulations specify that no one under the age of 16 may operate power machinery It is your responsibility to know what these regulations are in your own area or situation Refer to U S Dept of Labor Employment Standard Administration Wage amp Home Division Child Labor Bulletin 102 SECTION INTRODUCTION AND DESCRIPTION Figure 1 1 Major Components Bucket Cylinder E Cross Tube
35. king brake and lower loader to ground before leaving tractor operator s seat 3 2 PRE OPERATION IMPORTANT Do not extend bucket cylinders without bucket or quick hitch attachment installed on loader Failure to follow these instructions could cause bucket cylinder damage and will void loader war ranty NOTE Check the tractor hydraulic fluid reservoir and fill if required 3 3 INITIAL LOADER OPERATION NOTE Keep engine speed at low idle during the initial loader operation A warning A ESCAPING HYDRAULIC FLUID UNDER PRESSURE CAN HAVE SUFFICIENT FORCE TO PENETRATE SKIN CAUSING SERIOUS PERSONAL INJURY BEFORE APPLYING PRESSURE TO SYSTEM BE SURE ALL CONNECTIONS ARE TIGHT AND THAT LINES TUBES AND HOSES ARE NOT DAM AGED FLUID ESCAPING FROM A VERY SMALL HOLE CAN BE ALMOST INVISIBLE USE A PIECE OF CARDBOARD OR WOOD RATHER THAN HANDS TO SEARCH FOR SUSPECTED LEAKS IF INJURED BY ESCAPING FLUID SEE A DOCTOR AT ONCE SERIOUS INFECTION OR REACTION CAN DEVELOP IF PROPER MEDICAL TREATMENT IS NOT ADMINISTERED IMME DIATELY 3 4 EXTERNAL LOADER AND OR TRAC TOR VALVE NOTE When properly installed the tractor remote valve or external valve control lever levers will control the loader hydraulic circuits as described below Refer to tractor Operator s Manual for further explanation of tractor remote control lever levers IMPORTANT Contaminants in hydraulic fluid can cause valve spools to stick BE ALERT when operati
36. lug Supplied with the Walvoil Valve DO NOT use the plug supplied in the pop wer beyond kit it is only used with the Danfoss Valve Figure 5 3 4 TO OD CDD WD omer IMPORTANT When Loader hydraulics are disconnected from tractor the tractor hydraulic circuit must be completed by connecting pressure port to return port Failure to do this will cause serious damage to tractor hydraulic pump INSTALLATION INSTRUCTIONS 1 Remove plug from right side of valve 2 Install power beyond plug in valve 3 Install 90 elbow in power beyond plug 4 Attach hydraulic hose to 90 elbow and route hose to return outlet on tractor NOTE Additional fittings are required to attach hose to return outlet on tractor 5 10 MOUNTING BRACKET EYEBOLT Install eyebolt to each mounting kit center bracket and secure with hardware Figure 5 2 Figure 5 2 M246 Mounting Kit Center Bracket 5 8 Locknut Eyebolt M146 Mounting Kit Center Bracket 1 2 Lockwasher 1 2 Hex Nut 1 2 x 3 Gr 5 Hex Bolt Eyebolt Verify that all mounting kit hardware has been torqued as specified before installing loader A Identify hardware size and grade B Refer to Torque Specifications page 34 and find correct torque for your hardware size and grade C Torque hardware to this specification unless oth erwise specified IMPORTANT To prevent mounting kit hardware from loosen ing during loader operation alw
37. lve improperly Refer to plumbing diagrams in Section V connected Pump operating continually on closed Hydraulic control valve relief stuck See your tractor manual for proper adjust center tractor hydraulic system open ment or Bush Hog dealer for loader valve Hydraulic control valve relief set 3000 PSI is maximum pressure relief too low setting recommended Valve not correct for closed Install closed center plug on optional valve center operation Loader lift and bucket tilt controls do not work Hoses improperly connected Refer to plumbing diagrams in Section V according to decal and correct hose connections Valve noisy and or hot Open center control valve on Install closed center plug on optional valve closed center tractor Tractor loads pump squeals Closed center control valve on open Install open center plug on optional valve center tractor 24 SECTION V ASSEMBLY A caution A THE FOLLOWING SAFETY PRECAUTIONS SHOULD BE THOROUGHLY UNDER STOOD BEFORE ATTEMPTING MACHINE ASSEMBLY 1 Do not lift heavy parts or assemblies Use crane jack tackle fork trucks or other mechanical devices 2 Select an area for assembly that is clean and free of any debris which might cause persons working on the assembly to trip 3 Arrange parts to be assembled neatly in the work area and have tools or other mechanical assist ing devices in easy reach 4 Inspect all parts and assemblies thoroughly and remove any sha
38. nd bucket cylinders 2 or 3 times before each use then check hydraulic oil level in tractor reservoir A caution A USE A PIECE OF CARDBOARD OR WOOD RATHER THAN HANDS AND WEAR EYE PROTECTION WHEN SEARCHING FOR HYDRAULIC LEAKS ESCAPING HYDRAULIC OIL UNDER PRESSURE CAN PENETRATE SKIN IF OIL IS INJECTED INTO SKIN IT MUST BE SURGICALLY REMOVED WITHIN A FEW HOURS BY A DOCTOR OR GANGRENE MAY RESULT Figure 4 2 Lubrication Points M246 With Optional Skid Steer Quick Hitch M146 Standard Bucket Attachment 4 3 HYDRAULIC SYSTEM PRESSURE REQUIREMENTS A tractor hydraulic system pressure setting of 2500 psi is recommended for maximum efficiency and ser vice Do not exceed 3000 psi as this will damage components possibly causing serious injury The Bush Hog control valve is pre set at the factory and should not be adjusted 23 4 4 TROUBLESHOOTING Troubleshooting procedures are listed on page 24 If the problem cannot be solved or replacement parts are necessary contact your authorized Bush Hog dealer Please have ready your machine name model number serial number purchase date and exact cause or description of problem TROUBLESHOOTING PROCEDURES PROBLEM POSSIBLE CAUSE REMEDY Loader slow and or will not dump Hydraulic oil too heavy Change to proper oil Oil filter plugged Clean or replace filter Hydraulic pump worn Repair or replace pump Oil line restricted or leaking Check all hoses and tub
39. ng loader and follow your tractor Operator s Manual hydraulic fluid maintenance schedule 3 5 LOADER MOUNTED CONTROL VALVE EQUIPPED WITH SINGLE LEVER CONTROL HANDLE OR TRACTOR REMOTE VALVE EQUIPPED WITH SIN GLE LEVER CONTROL HANDLE If your loader utilizes a loader control valve equipped with single lever control handle or tractor remote valve equipped with single lever control handle it will function as shown in Figure 3 1 Figure 3 1 14 3 6 LOADER MOUNTED SERIES CON TROL VALVE EQUIPPED WITH SINGLE LEVER CONTROL HANDLE If your loader utilizes a loader mounted series con trol valve equipped with single lever control handle it will function as shown in Figure 3 2 Figure 3 2 3 7 NEUTRAL POSITION The loader external valve provided by Bush Hog has a neutral position which prevents movement of the loader or attachment When the control handle is manually released from the work position the valve spool will return to the neutral position 3 8 FLOAT POSITION The loader external valve provided by Bush Hog has a float position incorporated into the lift cylinder cir cuit which allows the loader to float This float fea ture is important for satisfactory operation when scraping sweeping leveling or any job where it is necessary to follow the contour of the surface To activate the float position lower the bucket or attach ment and push the control handle all the way for ward into detent The val
40. o the repair or replacement of defective parts Replacement or repair parts installed in the equipment covered by this limited warranty are warranted for ninety 90 days from the date of purchase of such part or to the expiration of the applicable new equip ment warranty period whichever occurs later Warranted parts shall be provided at no cost to the user at an authorized Bush Hog dealer during regular working hours Bush Hog reserves the right to inspect any equip ment or parts which are claimed to have been defective in material or workmanship DISCLAIMER OF IMPLIED WARRANTIES amp CONSEQUENTIAL DAMAGES Bush Hog s obligation under this limited warranty to the extent allowed by law is in lieu of all war ranties implied or expressed INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE and any liability for incidental and consequential damages with respect to the sale or use of the items warranted Such incidental and consequential damages shall include but not be limited to transportation charges other than normal freight charges cost of installation other than cost approved by Bush Hog duty taxes charges for normal service or adjustment loss of crops or any other loss of income rental of substitute equipment expenses due to loss damage detention or delay in the delivery of equipment or parts resulting from acts beyond the control of Bush Hog THIS LIMITED WARRANTY SHALL NOT APPLY 1 To vendor i
41. operation listen for abnormal sounds which might indicate loose parts or other damage AFTER EACH USE Clean all debris from machine especially cylinder rods and affixed safety decals Replace any missing or illegible decals Inspect loader for worn or damaged components Repair or replace before next use Any replace ment components installed during repair shall include the components current safety decals specified by the manufacturer to be affixed to the component Store loader in a dry place To keep mounting kit hardware from loosening dur ing operation periodically check that all loader mounting kit hardware is torqued to specifications noted in torque chart Page 36 To aid in mounting and dismounting loader apply a small amount of grease to areas shown in Figure 4 1 Figure 4 1 Mounting Kit E Apply Small Amount Of Grease Check Torgue On All Mounting Hardware 4 2 LUBRICATION Figure 4 2 NOTE The multi purpose grease referenced in this section is an NLGI grade 2 type grease 1 2 3 BEFORE EACH USE Boom Pivot Pins Apply multi purpose grease to each fitting 1 fitting each side Boom Cylinders Apply multi purpose grease to each fitting 2 fittings each cylinder Bucket Cylinders Apply multi purpose grease to each fitting 2 fittings each cylinder Bucket Pivot Pin Apply multi purpose grease to each fitting 1 fitting each side Hydraulic Oil Cycle boom a
42. orward and hold the lift control forward to start the cut Make a short angle cut approximately 6 deep and break out cleanly With the bucket level start a cut at the notch approx imately 2 deep Hold the depth by feathering the bucket control to adjust the cutting lip up or down When the front tires enter the notch adjust the lift cylinder to maintain proper depth 3RD CUT 4TH CUT ETC NY LEEGEGSEG AMMA Ahhh hhh hhh had Make additional passes until the desired depth is reached During each pass only use the bucket con trol while at working depth This will allow you to concentrate on controlling the bucket angle to main tain a precise cut LOADING LOW TRUCKS OR SPREADERS FROM A PILE For faster loading minimize the angle of turn and length of run between pile and spreader 19 BACKFILLING Ee DO THIS UI Backgrade occasionally with a loaded bucket to keep the working surface free of ruts and holes Hold the lift control forward in FLOAT POSITION so the full weight of the bucket is scraping the ground Use only the heel of the bucket while backgrading NOT THIS WM IMPORTANT To prevent damage to cylinders 1 Do not backgrade with bucket cylinders extended 2 Always backgrade with valve in float position Approach the pile with a flat bucket DO THIS Poor methods actually move no more dirt and make it more difficult to hold a level grade Do not use the
43. perator s responsibility to read the Operator s Manual to operate lubricate maintain and store the product in accordance with all instructions and safety procedures Failure of the opera tor to read the Operator s Manual is a misuse of this equipment It is the Retail Customer and or Operator s responsibility to inspect the product and to have any part s repaired hazard or replaced when continued operation would cause damage or excessive wear to other parts or cause a safety It is the Retail Customer s responsibility to deliver the product to the authorized Bush Hog Dealer from whom he purchased it for service or replacement of defective parts which are covered by warranty Repairs to be submitted for warranty consideration must be made within forty five 45 days of failure It is the Retail Customer s responsibility for any cost incurred by the Dealer for traveling to or hauling of the product for the purpose of performing a warranty obligation or inspection BUSH HOG LIMITED WARRANTY BPA ABABA AAR ARABIA REAR AK 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 1 year for non commercial state and municipalities use and ninety 90 days for commercial use from date of retail sale The obligation of Bush Hog to the purchaser under this warranty is limited t
44. raulic pump damage 3 15 FORK LIFT OPERATION M246 ONLY A warninc A TO AVOID SERIOUS INJURY OR DEATH Leave dirt which drifts over the side of the bucket for NEVER LIFT LARGE ROUND HAY final clean up BALES OR OTHER LOADS ON THE FORK LIFT ATTACHMENT THAT COULD ROLL BACK ONTO TRAC TOR OPERATOR AREA NEVER USE FORK LIFT ATTACH MENT TO LIFT OR SUPPORT PEOPLE TRANSPORT LOADS LOW AND SLOW AVOID CONTACT WITH POWER LINES The fork lift attachment Figure 3 4 is intended for handling palletized material It is recommended that tractor be equipped with ROPS and seat belts Use the loader dump cylinders to give the forks the desired tilt Position the forks on their support rods to the desired width so that the load will be carried approximately equal on each fork Position load as far back as possible 20 Pile dirt on the high side for easier backfilling on a slope Figure 3 4 Fork Lift Attachment Adjustable Forks Figure 3 5 A B C amp D Quick Hitch Operation B Drive Into Attachment Top Cuff 3 16 QUICK HITCH OPERATION M246 ONLY The quick hitch Figure 3 5 is designed to allow easy mounting and dismounting of skid steer attachments from loader With attachment on flat level surface mount as follows Tilt quick hitch slightly forward at top and slowly drive into attachment Hook quick hitch under top cuff on attachment and lift off ground using boom cylinders only Tilt quick hitch
45. rp edges grease oil or dirt which might cause pieces to slip when handling 5 Preview the assembly instructions in your opera tor s manual before proceeding further 6 If the assembly instructions call for parts or assemblies to be blocked up use only blocking material that is in good condition and is capable of handling the weight of the assembly to be blocked Also insure that the blocking material is on aclean dry surface 7 Never put hands or any other part of body under blocked up assemblies if at all possible 8 Always wear goggles or safety glasses when hammering grinding or drilling metal parts 9 If the assembly calls for welding or cutting be sure that there are no flammable materials close at hand and that bystanders have taken neces sary precautions AFTER COMPLETING ANY ASSEMBLY STEP THOROUGHLY READ THE NEXT STEP IN THE ASSEMBLY INSTRUCTIONS BEFORE PROCEED ING WITH THAT STEP 10 After completing assembly thoroughly inspect the machine to be sure that all nuts bolts hydraulic fittings or any other fastened assem blies have been thoroughly tightened 25 11 After completing assembly be sure that all safe ty locking devices or guards are in place 12 Before operating the machine thoroughly read the operation section of this manual 13 Before operating read the maintenance section of this manual to be sure that any parts requiring lubrication such as gearboxes are full to avoid any
46. ructions included with your Mounting Kit 5 2 TRACTOR BALLAST A caution A TO HELP PREVENT ROLLOVER USE REC OMMENDED REAR TRACTOR BALLAST AND WIDEST WHEEL SETTINGS TO MAXI MIZE STABILITY SEE YOUR TRACTOR OPERATOR S MANUAL FOR RECOMMEN DATIONS Tractor weight bracket may be left in place on cer tain tractor models with loader mounted Front trac tor weights can only be used when the loader is parked Weights must be removed before remount ing loader or serious damage will occur to loader or tractor front axle due to excessive weight The use of adequate rear counterweight to counter balance for maximum loader capacity is required for safe loader operation Weight added to the rear of the tractor provides better traction and easier more efficient loader operation IMPORTANT Do not exceed the maximum load capacity of the tires on your tractor Refer to the Tire and Wheel Specifications in your Tractor Operator s Manual for more information IMPORTANT This loader has both standard and metric fasten ers Verify that the proper fasteners are placed in the correct locations Do not tighten any bolts firmly until all components are attached onto the tractor 5 3 INSTALLATION A warninc A TO AVOID SERIOUS INJURY OR DEATH READ BEFORE CUTTING BANDS OR REMOVING ATTACHING STRAPS THE LOADER MAY SHIFT DURING SHIPPING AND HANDLING MAKING IT UNSTABLE ON THE PALLET SUPPORT LOADER WITH AN OVERHEAD HOIST OR OTHER SUITA
47. t couplers B Retract Loader Lift Cylinders Figure 2 3 Drive In Close Enough To Alllow Connecting Hydraulic Hoses To Tractor Outlets 10 C Check that lift cylinders are fully retracted Figure 2 3 Then drive tractor forward Use bucket cylinders to position height of outer pedestal top pin Figure 2 4 Figure 2 4 Outer Pedestal Top Pin ET Clamp And Pins In Stored Position D Align outer pedestal top pin with mounting bracket guide post on both sides Figures 2 2 8 2 4 Make sure loader is centered right to left on both brackets E Extend the bucket cylinders to lower the pedestal top pins into mounting bracket receivers on both sides Figure 2 5 Figure 2 5 Loader Installed With All Pins In Working Position F Extend lift cylinders slowly making sure loader is seated completely in mounting bracket top and bot tom receivers Retract bucket cylinder until bucket is approximately 1 2 off ground G Remove lockwasher quick attach nut and self storing tool from holder Remove quick pin and clamp from storage position Place clamp and quick pin in working position Install quick attach nut and lockwasher to eyebolt using self storing tool Store self storing tool in holder Figures 2 6 amp 2 7 Figure 2 6 Eyebolt Lockwasher Figure 2 7 Clamp Installed In Working Position Tightening Quick Attach Nut Using Self Storing Tool IMPORTANT Each time after mounting the loader operate load
48. tems which carry their own warranties such as engines tires and tubes 2 If the unit has been subjected to misapplication abuse misuse negligence fire or other accident 3 If parts not made or supplied by Bush Hog have been used in connection with the unit if in the sole judge ment of Bush Hog such use affects its performance stability or reliability 4 If the unit has been altered or repaired outside of an authorized Bush Hog dealership in a manner which in the sole judgement of Bush Hog affects its performance stability or reliability 5 To normal maintenance service and normal replacement items such as gearbox lubricant hydraulic fluid worn blades or to normal deterioration of such things as belts and exterior finish due to use or exposure 6 To expendable or wear items such as teeth chains sprockets belts springs and any other items that in the company s sole judgement is a wear item NO EMPLOYEE OR REPRESENTATIVE OF BUSH HOG IS AUTHORIZED TO CHANGE THIS LIM ITED WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS MADE IN WRITING AND SIGNED BY BUSH HOG S SERVICE MANAGER POST OFFICE BOX 1039 SELMA ALABAMA 36702 1039 BEA BEDE BEBE AEB HEB TE EH AEB TET HH TE HK HEH He HK He Record the model number serial number and date purchased This information will be helpful to your MODEL NUMBER dealer if parts or service are required MAKE CERTAIN THE WARRANTY REGISTRATION SERIAL NUMBER CARD HAS
49. uipment 8 Wear personal protective equipment PPE such as but not limited to protection for eyes ears lungs head hands and feet when operating servicing or repairing equipment Avoid wearing loose clothing or jewelry that may catch and entangle on equipment moving parts THE LOADER 1 Read the loader operator s manual to learn how to operate your loader safely Failure to do so could result in seri ous injury or death and equipment damage 2 Become familiar with all the machine s controls and all the caution warning and danger decals affixed to the machine before attempting to start or operate 3 Improper use of a loader can cause serious injury or death 4 Do not lift or carry anybody on the loader or in the bucket or attachment 5 Never allow anyone to get under the loader bucket or reach through the booms when the bucket is raised 6 Do not walk or work under a raised loader bucket or attachment unless it is is securely blocked or held in position 7 Avoid overhead wires and obstacles when loader is raised Contacting electrical lines can cause electrocution 8 Make sure all parked loaders on stands are on a hard level surface 9 Use a piece of cardboard or wood rather than hands and wear eye protection when searching for hydraulic leaks Escaping hydraulic oil under pressure can penetrate skin If oil is injected into skin it must be surgically removed within a few hours by a doctor or gangrene may result 1
50. ve will stay in float detent position until the operator manually pulls the control handle out of detent position to deactivate float 3 9 LOAD SENSE LOADER VALVE IMPORTANT If your loader is equipped with a load sense type control valve it may demonstrate the following operation characteristic Attempting to raise the boom by finely feathering the control lever may actually allow the boom to lower very slowly To prevent this from happening move the control lever far enough to ensure that the boom raises 3 10 LOADER OPERATION Before operating the loader fully raise and lower the boom three or four times Then raise the loader bucket approximately four 4 feet above the ground and cycle the bucket two or three times Lower the bucket or attachment to the ground Check the trac tor hydraulic fluid level and fill as reguired Refer to the tractor Operator s Manual for the proper hydraulic fluid and the correct hydraulic fluid level A caution A BEFORE LEAVING THE TRACTOR SEAT LOWER ATTACHMENT OR LOADER BOOM TO GROUND STOP ENGINE LOCK BRAKES RELIEVE HYDRAULIC PRES SURE AND REMOVE KEY IMPORTANT Always keep the cylinders in a retracted position when the loader is not in use to guard against rust and contamination which may cause dam age to the cylinder rods and hydraulic system 3 11 REMOVING AIR FROM HYDRAULIC SYSTEM Repeat raising and lowering the loader boom and bucket operations until all the air is removed from
51. vot Pin 103 in 86 in B Maximum Lift Height Under Level Bucket 96 in 81 in C Clearance with Attachment Dumped 45 77 in 67 in D Reach at Maximum Height 22 in 23 in E Maximum Dump Angle 40 45 F Reach with Bucket on Ground 62 in 54 in G Maximum Rollback Angle 25 25 H Digging Depth 5 in 5 in J Overall Height in Carry Position 56 in 48 in U Lift Capacity to Maximum Height At Pivot Pin 1530 Ibs 825 Ibs vV Lift Capacity to Maximum Height 31 5 M246 880 lbs 570 lbs 19 7 M146 Forward of Pivot Pin W Lift Capacity to 59 Height At Pivot Pin 1730 lbs 940 Ibs X Lift Capacity to 59 Height 31 5 M246 1195 Ibs 710 lbs 19 7 M146 Forward of Pivot Pin Breakout Force At Pivot Pin 2370 Ibs 1335 lbs Z Breakout Force 31 5 M246 1530 Ibs 965 Ibs 19 7 M146 Forward of Pivot Pin VV Rollback Force at Maximum Height 1625 lbs 1935 Ibs 31 5 M246 19 7 M146 Forward of Pivot Pin XX Rollback Force at 59 Height 31 5 M246 2020 Ibs 2300 Ibs 19 7 M146 Forward of Pivot Pin ZZ Rollback Force at Ground Level 31 5 M246 1680 Ibs 1700 lbs 19 7 M146 Forward of Pivot Pin Raising Time Ground Level to Full Height 4sec 3 5 sec Lowering Time Full Height to Ground 2 sec 2 5 sec Bucket Dumping Time Full Rollback 3 sec 4 0 sec to Full Dump Bucket Rollback Time Full Dump 2 sec 3 0 sec to Full Rollback Tractor HP Range 20 30 15 25 2 amp 4WD 2 amp 4
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