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BUSH HOG
B Ba ac ck kh ho oe e M Mo od de el ls s
CBH60 / CBH70 / CBH80
O Op pe er ra at to or r’ ’s s M Ma an nu ua al l
ASSEMBLY l l OPERATION l l MAINTENANCE
06/09 Rev. 2 $4.00 50065802
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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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Operator’s Manual BUSH HOG BACKHOE MODELS CBH60, CBH70, CBH80 TABLE OF CONTENTS SECTION/PARA PAGE SECTION/PARA PAGE Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Tooth Replacement . . . . . . . . . . . . . . . . . . . . . 16 Dealer Preparation Check List. . . . . . . . . . . . . . 3 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . 5 Removal / Storage . . . . . . . . . . . . . . . . . .
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LIMITED WARRANTY OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO 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 replace- ment of defecti
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DEALER PREPARATION CHECK LIST CBH60 - CBH70 - CBH80 BACKHOES BEFORE DELIVERING MACHINE - The following check list should be completed. Use the Operator’s Manual as a guide. q Machine properly assembled. q All safety decals readable (See decal page). q All bolts tightened to torque specifications given in the torque chart. q Machine operates properly. q Operator’s manual has been delivered to owner and he has been instructed on the safe and proper use of the backhoe. Dealer’s Signature CAUTION:
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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 safety precautions could result in death or seri- ous 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 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 training of per
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SAFETY PRECAUTIONS CONTINUED 12. DO NOT dig under stabilizers or tractor backhoe. Soft ground or sandy soil can cause cave-ins. 13. KEEP BUCKET away from the stabilizer area to avoid possible stabilizer damage. 14. ALWAYS swing bucket uphill to dump when on a hillside and keep loaded bucket low. 15. SET BRAKES and block wheels when operating on hills and banks to avoid dangerous runaway. 16. WATCH for overhead wires. DO NOT touch wires with any part of the backhoe. 17. NEVER allow a person to wo
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SAFETY DECALS The safety of the operator was a prime consideration in the design of the backhoe. Proper shielding, conve- nient controls, simple adjustments and other safety features have been built into this implement. The following decals are located on the backhoe. Keep decals clean and replace them immediately if they are missing. Contact your dealer or Bush Hog for replacements. All Models All Models CBH 70 CBH 60 CBH 80 7
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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 Safety 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
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GENERAL OPERATION Figure 1 ! ! CAUTION To avoid possible injury, observe the following Swing safety rules BEFORE Lock Pin OPERATING the backhoe: Location 1. BE SURE area is clear of underground utilities or Bucket other hazards. Link 2. POSITION barricade around work area. 3. PROVIDE adequate front end weight to counter-balance tractor at all times. 20% of the total Boom tractor, loader and back- hoe weight must be on the Dipper-Stick tractor front axle. Mainframe Bucket 4. Keep bystanders a saf
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Figure 3 Safety Locks Figure 3a Lock Pins Storage Locations Swing Lock Pin Boom Transport Lock Pin Location In general, the direction of movement of a control SWING LEFT AND RAISE the boom by moving the lever corresponds to the movement of the operating control lever back and to the left. member. SWING RIGHT AND LOWER the boom by moving OPERATING THE BACKHOE the lever forward and to the right. ! ! CAUTION SWING RIGHT AND RAISE the boom by moving the lever back and to the right. To avoid possib
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Location: Back Of Control Panel It is not difficult to become an efficient operator. This dual operation of controls will speed and simplify the digging operation. Normally the two or more Control lever operating decal is located on back of movements will not be equal or even simultaneous, the control console. Study this decal. It will assist you but as the pressure within the cylinders changes, and in becoming familiar with the controls. the resistance on an operating member of the hoe lessens,
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4. USE accessory lights and SMV emblem when ! ! CAUTION traveling on highways. To avoid possible injury, observe the following safety Before leaving backhoe operator’s seat, position the rules when transporting the backhoe: backhoe for transport by raising boom, crowding dip- 1. ALWAYS engage safety locks as shown on Figs. 1 perstick in, swinging to center and raising the stabiliz- and 3 when transporting backhoe. ers. 2. TRAVEL SLOWLY over rough terrain, on hillsides, When transporting for long
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General Operations As the pile is approached, dump the bucket. When the bucket is empty, the dipperstick and bucket are in position FILLING THE BUCKET to resume digging upon return to the trench. Control the bucket attitude throughout the digging cycle to IMPORTANT: Avoid constant jarring or hammering-type keep teeth at the proper angle for best penetration. This contact between the spoil pile and the loaded bucket, as will minimize dragging and scraping the bucket through the this may cause pre
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General Operations MISCELLANEOUS When finishing straight walls or bellholes in sandy soil, use SIDE SLOPE EXCAVATING OR TRENCHING a platform under the rear tires and the stabilizers. The plat- form distributes the load over a larger area and lessens the Dig with the backhoe uphill whenever possible. possibility of a cave-in. The platform also tends to keep the unit from creeping rearward if hard digging is encountered. FINISHING STRAIGHT WALLS Level the backhoe on slopes with the stabilizers to
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SERVICE ! ! CAUTION Hydraulic System Hoses To avoid possible injury, observe the following Oil leaks in the pressure side of the system can be safety rules WHEN SERVICING the backhoe: located by carefully inspecting the external area of the hoses and fittings. 1. ENGAGE safety locks as shown in Figures 1 & 3 before servicing the backhoe. Check the return side of the system for leaks by examining the oil in the reservoir. If air is being drawn 2. DO NOT oil, grease or adjust the backhoe while it
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TOOTH REPLACEMENT Tightening Nuts and Bolts The bucket tooth points are shelf-sharpening and will Periodically, check to be sure all bolts and nuts are require little attention; however these points on the tight. See torque chart, page 51 . bucket shanks can be replaced when they become badly worn or broken. If a tooth shank breaks off, Check all pivot pins for cotter pins, washers and becomes damaged or lost so that it cannot hold a retainers; if missing, replace. tooth point, a new shank shoul
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REMOVAL FROM TRACTOR - STORAGE Figure 9 Backhoe Fully Extended Place Blocking Under Backhoe Frame For Support The backhoe is self-assisting during the installation ! ! CAUTION and removal procedures. For removal and storage, follow these steps: Make sure tractor PTO is disengaged and engine shut off before disconnecting pump or hydraulic 1. Install the swing safety lock pin as shown in lines. Figures 1 and 3. a. On PTO pump self-contained systems, the pump 2. Stretch out the boom, dipper stick
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Figure 10 STABILIZER PADS The backhoe is supplied with flip-over stabilizer feet (Excluding Model CBH60) as standard equipment. They are suitable for most backhoe work and gener- ally are all that is ever required. However, foot pad kits are available as options. These kits bolt to the standard feet and increase the versatility of the back- hoe. See Figure 10. Hydraulic Trouble Shooting ! ! WARNING The trouble shooting material presented in this sec- Escaping hydraulic / diesel fluid under press
