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®
BUSH HOG
Models RTN, RTNR, & RTH
Rotary Tillers
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
207 $4.00 93777
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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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Rotary Tillers Operator’s Manual Models RTN, RTNR & RTH TABLE OF CONTENTS SECTION / PARA PAGE SECTION / PARA PAGE Warranty . . . . . . . . . . . . . . . . . . . . . . . .2 3-3 Operation . . . . . . . . . . . . . . . . . . . .9 Dealer Preparation Check List . . . . . . .3 3-4 Transporting . . . . . . . . . . . . . . . . . .9 Safety Precautions . . . . . . . . . . . . . . . .4 Federal Laws And Regulations . . . . . .5 IV MAINTENANCE . . . . . . . . . . . . . . . . .10 4-1 Maintenance Check List .
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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 replacement of defective
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DEALER PREPARATION CHECK LIST ROTARY TILLERS BEFORE DELIVERING MACHINE — The following check list should be completed. Use the Operator’s Manual as a guide. r 1. Assembly completed. r 2. Gearboxes filled with oil. r 3. All fittings lubricated. r 4. All shields in place and in good condition. r 5. All fasteners torqued to specifications given in Torque Chart. r 6. Slip clutch checked for proper operation. r 7. All decals in place and readable. (See decal page.) r 8. Overall condition good (i.e. p
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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 personne
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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 l INTRODUCTION AND DESCRIPTION 1-1 INTRODUCTION 1-2 DESCRIPTION We are pleased to have you as a Bush Hog customer. The RTN, RTNR medium duty series of rotary tillers Your Bush Hog Rotary Tiller has been carefully is designed for use in a wide range of tilling require- designed to give maximum service with minimum ments. The RTH heavy duty series of rotary tillers is down time. This manual is provided to give you the designed for tougher operating conditions. Each of necessary operating a
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SPECIFICATIONS RTNR60 RTNR72 RTNR80 Model No. RTN60 RTN72 RTN80 RTH60 RTH72 RTH80 RTH88 Tillage Width 60” 72” 80’ 60” 72” 80” 88” Number of Blades 28 36 40 28 36 40 44 Type Blades C-Type C-Type C-Type C-Type C-Type C-Type C-Type Weight 664 lbs. 726 lbs. 777 lbs. 810 lbs. 884 lbs. 924 lbs. 964 lbs. No. of Flanges 79 10 79 10 11 Rotor Speed 238 RPM @ 540 RPM 213 RPM @ 540 RPM Depth of Cut 7” Adjustable with 5-Position Skid 7” Adjus
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NOTE Figure 2-5 If driveline is the correct length, omit the following steps “G” through “J” and proceed to step “K”. G. Clamp driveline in a well padded vice to pre- vent damage to the shield. Cut off shield where marked. (Figure 2-3) Figure 2-3 L. Adjust lower lift arm to level tiller right to left. Refer to tractor operator’s manual for instructions. M. Adjust top link of tractor 3-point hitch to level tiller front to rear. N. Set up tractor stabilizer bars, sway blocks, or equivalent to prev
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SECTION III OPERATING INSTRUCTIONS 3-1 GENERAL SAFETY 3-3 OPERATION Only qualified people familiar with this operator’s A. Perform BEFORE EACH USE maintenance manual should operate this machine. Operator should listed in paragraph 4-1. wear hard hat, safety glasses, and safety shoes. It is B. Adjust for work per paragraph 3-2. C. Start tractor. Raise tiller off the ground. recommended that tractor be equipped with Rollover D. With tractor at idle speed, engage PTO drive. Protective System (ROPS)
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SECTION IV MAINTENANCE which might indicate loose parts, damaged bear- 4-1 MAINTENANCE CHECK LIST ings, or other damage. Perform scheduled maintenance as outlined below. Lower machine to ground, turn off tractor and set AFTER EACH USE parking brake before doing maintenance inspections 1. Clean all debris from machine especially underside. or work. Some checks may require raising machine off ground and supporting with blocks. All bolts 2. Store in dry place. should be torqued as recommended in TO
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Figure 4-2 Blade Wear 4-3 BLADE REPLACEMENT 1/4” WARNING THE TILLER CAN FALL FROM HYDRAULIC SYSTEM FAILURE. TO AVOID SERIOUS INJURY OR DEATH, SECURELY SUPPORT TILLER BEFORE WORKING UNDERNEATH. 1-3/32” Figure 4-3 (27.6mm) Tiller blades should be replaced when they have Clutch Spring Length approximately 1/4” of wear left on tip of blade.(Figure 4-2) To replace blades, remove bolts securing blade. Install new blade in its place. Blade must be a right or left corresponding to the blade removed. Ti
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ment parts are necessary, contact your authorized 4-7 TROUBLESHOOTING Bush Hog dealer. Please have ready your machine name, model number, serial number, purchase date, Troubleshooting procedures are listed in Table 4-1 and exact cause or description of problem. below. If the problem cannot be solved or replace- Table 4-1 Troubleshooting PROBLEM PROBABLE CAUSE REMEDY Uneven Till Tiller not level right to left Adjust skids for same depth Adjust tractor lower lift arms Noisy Loose components Check
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SECTION V DEALER ASSEMBLY WARNING THE FOLLOWING SAFETY PRECAUTIONS SHOULD BE THOROUGHLY UNDERSTOOD BEFORE ATTEMPTING MACHINE ASSEMBLY 1. Wear personal protective equipment such as, but not limited to, protection for eyes, ears, feet, hands and head when operating or repairing the equipment. Do not wear loose clothing or jewelry that may catch on equipment moving parts. 2. Do not lift heavy parts or assemblies. Use crane, jack, tackle, fork trucks or other mechanical devices. 3. Select an area
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“A” Frame Mast Chain Drive Figure 5-1 Slip Clutch End Box RTN Series Tiller Strongback Clutch Shield Parking Stand Cluch Shield Mounting Tab Gear Drive End Box Figure 5-2 RTH Series Tiller Shock Absorber Assembly Shock Absorber Mounting Brackets 14
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SAFETY DECALS To promote safe operation, Bush Hog supplies safety decals on all products manufactured. Because damage can occur to safety decals either through shipment, use or reconditioning, Bush Hog will, upon request, provide safety decals for any of our products in the field at no charge. Contact your authorized Bush Hog dealer for more information. Part No. 78413 Part No. 78786 Part No. 78608 Part No. 81067 Part No. 60873 15
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TORQUE SPECIFICATIONS Proper toque for American fasteners used on Bush Hog equipment. Recommended Torque in Foot Pounds (Newton Meters).* AMERICAN B O L T D IA M E T E R Bolt Head Markings W R E N C H (IN .) “B ” A N D S A E S A E S A E S IZ E (IN .) “A ” T H R E A D S IZ E G R A D E 2 G R A D E 5 G R A D E 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) 17 (23) 25 (33) SAE Grade 2 1/2 5/16 - 24 UNF 13 (17) 19 (26) 27 (37) (No Dashes) 9/
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Supplemental Slip Clutch Instructions for the RTH, RTN & RTNR Tillers Bush Hog RTH, RTN and RTNR tillers may have either of two different types of slip clutches. The drivelines equipped with Belleville spring plates require a more precise measurement than the clutches equipped with external coil springs. The compression of the Belleville spring many need to be adjusted if the clutch slips with the original settings. Clutch slippage may occur from excessive tractor horsepower or ground speed. If
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P.O. Box 1039 l l Selma, AL 36702-1039 Telephone (334) 874-2700 l l www.bushhog.com
