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®
BUSH HOG
Front End Loaders
M146 / M246
OPERATOR’S MANUAL
ASSEMBLY OPERATION MAINTENANCE
401
$4.00
50029373
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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. Orde
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M146/ M246 Front End Loader TABLE OF CONTENTS SECTION/PARA PAGE SECTION/PARA PAGE Warranty ............................................................2 3-13 Bucket Level Indicator Rod......................15 Dealer Preparation Check List...........................3 3-14 Transporting.............................................20 Safety Alert Symbols..........................................4 3-15 Fork Lift Operation...................................20 Safety Precautions........................
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® BUSH HOG LIMITED WARRANTY 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 to the repair or replacement of defective parts. Replacement o
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DEALER PREPARATION 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 properly. ❏ Customer has appropriate mounting kit for his tractor and loader. ❏ Customer has appropriate attachments for loader operations. ( Buckets for lifting loo
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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 precautions could result in death or serious bodily injury. Safety Signs Signal Words The signal words DANGER, WARNING, AND CAUTION are used on the equipm
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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 equipment, hazard control and accident prevention are dependent upon the awareness, concern, prudence and proper traini
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SAFETY PRECAUTIONS CONTINUED 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 servicing or replacing pins in cylinder ends, buckets, etc., always use a brass drift and hammer. Failure to do so cou
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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 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 health
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SECTION I INTRODUCTION AND DESCRIPTION Figure 1-1 Major Components Bucket Cylinder Mainframe Boom Cross Tube Bucket Subframe Boom Cylinder Parking Stands Stored 1-1 INTRODUCTION 1-2 DESCRIPTION We are pleased to have you as a Bush Hog cus- Model M146 & M246 Front End Loaders are tomer. Your Front End Loader has been carefully designed for two wheel and four wheel drive trac- designed to give maximum service with minimum tors. They come equipped with parking stands to dow
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Table 1-1 TECHNICAL SPECIFICATIONS VV U V D E XX A B C W X J ZZ G F Y Z H 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° 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.
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SECTION II LOADER MOUNTING AND DISMOUNTING 2-1 PREPARING TRACTOR Figure 2-1 CAUTION 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 AND SPECIFICATIONS FOR YOUR TRACTOR. Short Wheelbase A. Check air pressure in tractor tires to be sure it Long W
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C. Check that lift cylinders are fully retracted. F. Extend lift cylinders slowly making sure loader is Figure 2-3. Then drive tractor forward. Use bucket seated completely in mounting bracket top and bot- cylinders to position height of outer pedestal top pin. tom receivers. Retract bucket cylinder until bucket is Figure 2-4. approximately 1/2” off ground. G. Remove lockwasher, quick attach nut, and Figure 2-4 Outer Pedestal Top Pin self storing tool from holder. Remove
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IMPORTANT CAUTION Each time after mounting the loader, operate DO NOT STAND, WALK, OR WORK UNDER loader for a short period of time, then retighten A RAISED LOADER OR ATTACHMENT the quick attach nuts. Check nuts for tightness UNLESS IT IS SECURELY BLOCKED OR during normal maintenance HELD IN POSITION. ACCIDENTAL MOVE- H. Remove parking stands from the parked posi- MENT OF A CONTROL LEVER/LEVERS OR tion and return them to their storage positions in the LEAKS IN THE HYDRAULIC SYSTEM cross tube. Sec
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F. Rollback bucket slightly while lowering loader J. Disconnect loader hoses from quick couplers. boom down until the parking stands make firm con- Start tractor and slowly back tractor away from loader. tact with ground. Dump bucket until bucket touches Figure 2-10. the ground. NOTE IMPORTANT Driving the tractor forward slowly while position- To avoid hydraulic hose damage, be alert and ing loader will allow parking stands to contact make sure hoses do not catch on tractor and/or ground firmly.
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WARNING 3-6 LOADER MOUNTED SERIES CON- TROL VALVE EQUIPPED WITH SINGLE ESCAPING HYDRAULIC FLUID UNDER LEVER CONTROL HANDLE PRESSURE CAN HAVE SUFFICIENT FORCE TO PENETRATE SKIN, CAUSING SERIOUS PERSONAL INJURY. BEFORE APPLYING If your loader utilizes a loader mounted series con- PRESSURE TO SYSTEM, BE SURE ALL trol valve equipped with single lever control handle, CONNECTIONS ARE TIGHT AND THAT it will function as shown in Figure 3-2. LINES, TUBES, AND HOSES ARE NOT DAM- Figure 3-2 AGED. FLUID ESC
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3-10 LOADER OPERATION 3-12 HOSE IDENTIFICATION Before operating the loader, fully raise and lower the Metal lines on the loader are color coded. Check boom three or four times. Then raise the loader loader functions. Refer to instruction sheets for bucket approximately four (4) feet above the ground hydraulic valve option on your loader. and cycle the bucket two or three times. Lower the bucket or attachment to the ground. Check the trac- 3-13 BUCKET LEVEL INDICATOR ROD tor hydraulic fluid level
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The text and illustrations that follow offer suggested loader and tractor operating techniques. 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 ... a level bucket throughout the lifting cycle resists Ease lever back and toward you to lift and rollback bucket lift and increases breakaway effort. the bucket. NOT THIS 1-LEVER CONTROL NOTE: Do not be concerned if the bucket is not com- pletely filled
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LIFTING THE LOAD CAUTION OPERATING THE LOADER ON A HILLSIDE WARNING IS DANGEROUS. EXTREME CARE IS RECOMMENDED. 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 DO THIS NOT THIS MAKE SURE MATERIAL IN BUCKET CAN- NOT ROLL OUT AND DOWN ON TRACTOR WHEN BUCKET IS RAISED TO FULL When transporting the load, keep the bucket as
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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. FLOAT 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
