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Bush Hog M146 - page 1
BU S H H O G ® ASSEMBL Y ● OPERA TION ● MAINTENANCE 401 $4.00 50029373 OPERA TOR ’S MANU AL F r ont End Loaders M1 46 / M 2 46 ...
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Bush Hog M146 - page 2
CONGRA TULA TIONS! Y ou 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 wel ...
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Bush Hog M146 - page 3
M146 / M246 F r ont End Loader T ABLE OF CONTENTS SECTION/P ARA P AGE Warranty ............................................................2 Dealer Preparation Check List ...........................3 Safety Alert Symbols..........................................4 Safety Precautions .............................................5 Federal Laws & R ...
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Bush Hog M146 - page 4
BUSH HOG ® 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 (1) year for non- ...
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Bush Hog M146 - page 5
DEALER PREP ARA TION CHECK LIST M146 & 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 prop ...
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Bush Hog M146 - page 6
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 advice. Failure to comply with safe- ty pre ...
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Bush Hog M146 - page 7
IMPORT ANT 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 de ...
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Bush Hog M146 - page 8
10. Before disconnecting hydraulic lines, relieve all hydraulic pressure. 11. 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. 12. Always wear safety goggles when repairing or servicing machine. 13. When ...
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Bush Hog M146 - page 9
IMPORT ANT FEDERAL LA WS AND REGULA TIONS* CONCERNING EMPLOYERS, EMPLOYEES 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-St ...
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Bush Hog M146 - page 10
SECTION I INTRODUCTION AND DESCRIPTION 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 con ...
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Bush Hog M146 - page 11
T able 1-1 TECHNICAL SPECIFICA TIONS G E J C B A H F D XX ZZ W X Y Z U V VV 9 SERIES LOADER M246 M146 A. Maximum Lift Height - Measured at Pivot 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° ...
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Bush Hog M146 - page 12
SECTION II LOADER MOUNTING AND DISMOUNTING TRACTORS THAT HAVE MOVABLE AXLES MUST BE SET FORWARD IN THE LONG WHEEL- 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 A ...
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Bush Hog M146 - page 13
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 Clamp And Pins In Stored Position D. Align outer pedestal top pin with mounting bracket guide post on both sides.(Figures 2-2, & 2-4) Make sure ...
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Bush Hog M146 - page 14
IMPORTANT Each time after mounting the loader, operate loader for a short period of time, then retighten the quick 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 pi ...
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Bush Hog M146 - page 15
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 dri ...
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Bush Hog M146 - page 16
3-6 LOADER MOUNTED SERIES CON- TROL V AL VE 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. 3-4 EXTERNAL LOADER AND/OR TRAC- TOR V AL VE. NOTE When properly installed, the tractor remote valve or external val ...
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Bush Hog M146 - page 17
3-10 LOADER OPERA TION 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 required. Refer to the tractor ...
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Bush Hog M146 - page 18
16 NOTE: Do not be concerned if the bucket is not com- pletely filled during each pass. Maximum productivi- ty is determined by the amount of material loaded in a given period of time. T ime is lost if two or more attempts are made to fill the bucket on each pass. FILLING THE BUCKET Approach and enter the pile with a level bucket. The lift and roll ...
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Bush Hog M146 - page 19
LIFTING THE LOAD WARNING DO NOT LIFT OR CARRY ANYONE IN THE 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. CAUTION MAKE SURE MATERIAL IN BUCKET CAN- NOT ROLL OUT AND DOWN ON TRACTOR WHEN BUCKET IS RAISED TO FULL ...
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Bush Hog M146 - page 20
OPERA TING WITH FLOA T 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. FLOAT The float will also prevent the mixing of surface material with stockpile ...
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Bush Hog M146 - page 21
PEELING AND SCRAPING BACKFILLING 6” Use a slight bucket angle, travel forward, 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 l ...
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Bush Hog M146 - page 22
Leave dirt in the bucket because dumping on each pass wastes time. Operate at right angles to the ditch. Take as big a bite as the tractor can handle without lugging down. DITCH SOIL PILE DITCH Leave dirt which drifts over the side of the bucket for final clean-up. Pile dirt on the high side for easier backfilling on a slope. HANDLING LARGE HEAVY O ...
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Bush Hog M146 - page 23
Figure 3-4 Fork Lift Attachment Adjustable Forks 21 3-16 QUICK HITCH OPERA TION (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 q ...
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Bush Hog M146 - page 24
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. BEFORE EACH USE 1. Inspect hydraulic lines and fitt ...
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Bush Hog M146 - page 25
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. 4-4 TROUBLESHOOTING Troublesho ...
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Bush Hog M146 - page 26
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 tubes for leaks, damage or restrictions. Replace damaged or restricted ...
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Bush Hog M146 - page 27
SECTION V ASSEMBL Y 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 ass ...
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Bush Hog M146 - page 28
5-2 TRACTOR BALLAST 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 counter ...
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Bush Hog M146 - page 29
M146 LO ADER V AL VE MOUNTING INSTR UCTIONS FOR W AL V OIL V AL VE 50032442 SMALL V AL VE & MOUNT KIT HYDRA ULIC A TT A CHMENT 25G13603 (3) Male Unions Connect to metal lines on loader 50032444 (4) Hydraulic Hoses Red - Rod End of Lift Cylinder Green - Base End of Bucket Cylinder Blue- Base End of Lift Cylinder Yellow- Rod End of Bucket Cylinde ...
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Bush Hog M146 - page 30
M146 LO ADER V AL VE MOUNTING INSTR UCTIONS FOR W AL V OIL V AL VE 50032443 SERIES V AL VE & MOUNT KIT HYDRA ULIC A TT A CHMENT 25G13603 (3) Male Unions Connect to metal lines on loader 50032444 (4) Hydraulic Hoses Red - Rod End of Lift Cylinder Green - Base End of Bucket Cylinder Blue- Base End of Lift Cylinder Yellow- Rod End of Bucket Cylind ...
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Bush Hog M146 - page 31
M246 LO ADER V AL VE MOUNTING INSTR UCTIONS FOR W AL V OIL V AL VE 50029340 SMALL V AL VE & MOUNT KIT HYDRA ULIC A TT A CHMENT 25H40043 (4) Male Unions Connect to metal lines on loader 50029334 (4) Hydraulic Hoses Red - Rod End of Lift Cylinder Green - Base End of Bucket Cylinder Blue- Base End of Lift Cylinder Yellow- Rod End of Bucket Cylinde ...
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Bush Hog M146 - page 32
M246 LO ADER V AL VE MOUNTING INSTR UCTIONS FOR W AL V OIL V AL VE 50029330 SERIES V AL VE & MOUNT KIT HYDRA ULIC A TT A CHMENT 25H40043 (4) Male Unions Connect to metal lines on loader 50029334 (4) Hydraulic Hoses Red - Rod End of Lift Cylinder Green - Base End of Bucket Cylinder Blue- Base End of Lift Cylinder Yellow- Rod End of Bucket Cylind ...
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Bush Hog M146 - page 33
This Kit is provided to relieve excessive pressure on loader control valve when other implements are used while loader is still attached to tractor . ITEM QTY. DESCRIPTION 1 1 Power Beyond Plug Assy. 2 1 Elbow 90˚ 9/16” ORB to 9/16” JIC 3 1 Hydraulic Hose 1/4” - 9/16” JIC Female 4 2 Straight Fitting 9/16” JIC male to 3/8” Pipe male 5 1 ...
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Bush Hog M146 - page 34
5-10 MOUNTING BRACKET EYEBOL T Install eyebolt to each mounting kit center bracket and secure with hardware. Figure 5-2. Figure 5-2 5/8” Locknut Mounting Kit Center Bracket CAUTION LIFT AND SUPPORT ALL LOADER COM- PONENTS SAFELY. 32 Eyebolt 5/8 x 3-1/2” Gr. 5 Hex Bolt Verify that all mounting kit hardware has been torqued as specified before in ...
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Bush Hog M146 - page 35
33 Standard Model - For attaching directly to the loader boom and hydraulic cylinders. QUICK HITCH MODEL - For attaching to loader-mounted quick hitch assembly. 5-13 FORK LIFT OPTIONS (M246 Only) Insert fork support rods through main frame and fork tubes. Secure in place with roll pins. Roll Pin Support Rod Mainframe Fork 5-12 SKID STEER QUICK HITC ...
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Bush Hog M146 - page 36
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 request, provide safety decals for any of our products in the field at no charge. Contact your authorized Bush Hog dealer for more infor ...
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Bush Hog M146 - page 37
35 62779 50100907 24H41969 50100234 ...
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Bush Hog M146 - page 38
T ORQUE 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) ...
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Bush Hog M146 - page 39
P .O. Box 1039 ● Selma, AL 36702-1039 T elephone (334) 874-2700 BU S H HO G ® , L. L. C . ...
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