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Bush Hog ATH 720 - page 1
ASSEMBLY l l OPERATION l l MAINTENANCE 04/09 Rev.1 $4.00 90898 A A T T H H / / F F T T H H A A i i r r T T u u n n n n e e l l & & F F l l a a t t D D e e c c k k F F i i n n i i s s h h i i n n g g M M o o w w e e r r s s O O p p e e r r a a t t o o r r ’ ’ s s M M a a n n u u a a l l BUSH HOG ® Model ATH 720 Air Tunnel Model FTH 600 ...
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Bush Hog ATH 720 - page 2
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 ...
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Bush Hog ATH 720 - page 3
ATH / FTH FINISHING MOWER Operator’s Manual TABLE OF CONTENTS SECTION/PARA PAGE Warranty . . . . . . . . . . . . . . . . . . . . . . . . . .2 Dealer Preparation Check List . . . . . . . . .3 Safety Precautions . . . . . . . . . . . . . . . . . .4 Federal Laws and Regulations . . . . . . . . .5 I INTRODUCTION AND DESCRIPTION . .6 1-1 Introduction ...
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Bush Hog ATH 720 - page 4
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 commer ...
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Bush Hog ATH 720 - page 5
DEALER PREPARATION CHECK LIST ATH / FTH FINISHING MOWERS BEFORE DELIVERING MACHINE — The following check list should be completed. Use the Operator’s Manual as a guide. o 1. Assembly completed. o 2. Gearboxes filled with oil. o 3. All fittings lubricated. o 4. All shields in place and in good condition. o 5. All fasteners torqued to specificati ...
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Bush Hog ATH 720 - page 6
IMPORTANT SAFETY PRECAUTIONS This symbol is used to call attention to safety p r e c a u t i o n s t h a t s h o u l d b e f o l l o w e d b y t h e operator to avoid accidents. When you see this symbol, carefully read the message that fol- lows and heed its advice. Failure to comply with safety precautions could result in death or serious bodily i ...
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Bush Hog ATH 720 - page 7
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-Steige ...
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Bush Hog ATH 720 - page 8
1-1 INTRODUCTION We are pleased to have you as a Bush Hog cus- t o m e r . Y o u r A T H / F T H S e r i e s R o t a r y C u t t e r h a s 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 rotary cutter in top operating con ...
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Bush Hog ATH 720 - page 9
2-1 ATTACHING TO TRACTOR A. Attach to tractor Cat. I three point hitch as described in tractor operator’s manual. SECTION II PREPARATION FOR USE B. Raise and lower cutter to determine position with shortest distance between the tractor PTO shaft and gearbox input shaft. Shut down tractor leaving cutter in position of shortest distance. SECURELY B ...
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Bush Hog ATH 720 - page 10
G. Clamp end of driveline in a vice. Cut off shield where marked. (Figure 2-3). Figure 2-3 H. Using cut off section of shield as a guide, cut shaft the same amount. (Figure 2-4) I. Repeat steps “G” and “H” to other driveline sec- tion. J. Deburr ends of driveline sections and clean away all chips and filings. (Figure 2-5) K. Apply multi-pur ...
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Bush Hog ATH 720 - page 11
SECTION III OPERATING INSTRUCTIONS 3-1 GENERAL SAFETY Only qualified people familiar with this operator’s manual and tra ctor operator’s manual should oper- at e th is m ac hi ne . Op er at or s ho u ld w ea r har d ha t , safety glasses and safety shoes. The operator should read, understand and practice all safety mes- sages shown on the cauti ...
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Bush Hog ATH 720 - page 12
SECTION IV MAINTENANCE 4-1 MAINTENANCE CHECK LIST Perform scheduled maintenance as outlined below. Lower implement to gro und, turn off tractor, and set parking brake before doing maintenance inspections or work. Some checks may require raising machine off ground and supporting with blocks. All bolts should be torqued as indicated in torque chart u ...
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Bush Hog ATH 720 - page 13
4-3 BELT ADJUSTMENT Belt tension should be checked every 40 hours to get maximum life from drive belt and best perfor- mance from cutter. Belt tension is adjusted by increasing or decreasing the length of the spring on the moveable idler. For proper belt tension on the 48” mow er, t he s pring leng th s hould be set a t 7- 1/16” . For proper be ...
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Bush Hog ATH 720 - page 14
4-6 TROUBLESHOOTING Troubleshooting procedures are listed in Table 4-1 below. If the problem cannot be solved or replacement parts are necessary, contact your authorized Bush Hog dealer. Please have ready your machine name, model num- ber, serial number, purchase date and exact cause or description of problem. Table 4-1 Troubleshooting PROBLEM PROB ...
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Bush Hog ATH 720 - page 15
THE FOLLOWING SAFETY PRECAUTIONS SHOULD BE TH OROUGHLY UNDERSTOOD BEFORE ATTEMPTING MACHINE ASSEMBLY. 1. Wear personal protective equipment such as, but not limited to, protect ion for eyes, ears, feet, hands, lungs and head when assembling the equip- ment. Do not wear loose clothing or jewelry that may catch on equipment moving parts. 2. Do not li ...
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Bush Hog ATH 720 - page 16
D. Loosely attach two caster arms to the front of the mower deck using 5/8 x 3-1/2” bolts, lockwash- ers and hex nuts. Install reinforcement plates between bolt heads and caster arms. Loosely attach the remaining two caster arms to the rear of the mower deck using 5/8 x 3-1/2” bolts, lockwashers and hex nuts in each caster arm. Attach mast sup- ...
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Bush Hog ATH 720 - page 17
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 wi ll, 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 ATH 720 - page 18
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) 17 (23) 25 (33) 1/2 5/16 - 24 UNF 13 (17) 19 (26) 27 (37) 9/16 3/8 - 16 UNC 20 (27) 31 (42) 44 (60) 9/16 3/8 - 24 UNF 23 (31) 35 (47) 49 (6 ...
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Bush Hog ATH 720 - page 19
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Bush Hog ATH 720 - page 20
2501 Griffin Ave. l l Selma, AL 36703 Telephone (334) 874-2700 l l www.bushhog.com ...
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