BUSH HOG ® GEARDRIVE HAY MOWERS Models HM2007, HM2008, & HM2009 Operator’s Manual ASSEMBLY ● OPERATION ● MAINTENANCE 1100 $4.00 Part No.
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.
HAY MOWER TABLE OF CONTENTS SECTION SECTION PAGE PAGE Stabilizer.........................................................25 Lifting Height ..................................................25 Transport - Unhitching ....................................27 Maintenance...................................................29 Lubrication......................................................31 Optional Equipment........................................35 Direction For Repair ......................................
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.
DEALER PREPARATION CHECK LIST HAY MOWER BEFORE DELIVERING MACHINE — The following check list should be completed. Use the Operator’s Manual as a guide. ❒ ❒ ❒ ❒ ❒ ❒ ❒ ❒ 1. Assembly completed. 2. Gearbox filled with oil. 3. All fittings lubricated. 4. All shields in place and in good condition. 5. All fasteners torqued to specifications given in Torque Chart. 6. All decals in place and readable. (See decal page.) 7. Overall condition good (i.e. paint, welds) 8.
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 serious bodily injury.
IMPORTANT SAFETY PRECAUTIONS 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 serious bodily injury.
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: “...
Models HM2007 - HM2008 - HM2009 600 mm (24”) 1050 mm (42”) Model HM2007 - 3680 mm (145”) Model HM2008 - 4060 mm (160”) Model HM2009 - 4440 mm (175”) Transport 1170 mm (46”) 1040 mm (41”) Model HM2007 - 1900 mm (75”) Model HM2008 - 2280 mm (90”) Model HM2009 - 2660 mm (105”) 160 mm (6-1/4”) (All measurements are approximate and stated in mm and inches) 7 1110 mm (44”) 860 mm (34”) 555 mm (22”) 1095 mm (43”)
Technical Data (Conversion table - see page 46 ). Model HM2007 Model HM2008 Model HM2009 Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . kg (lb.) 415 (915) 440 (970) 465 (1025) P.T.O. (Input speed) . . . . . . . . . . . . . . . . . . rpm 540 540 540 Power requirement, min. . . . . . . . . . . . kW (HP) 30 (40) 33 (45) 37 (50) P.T.O. shaft with overrun clutch . . . . . . . . . . . . . Standard Standard Standard Number of discs . . . . . . . . . . . . . . . . . . . . . . pcs.
Machine Identification The machine serial number and manufacturer information can be found on the metal plate, as shown.
kg / lb.
Safety ① Any operator, repairer and owner must be familiar with the warning instructions for the machine in this manual, before operations commence. Always work carefully with agricultural machinery. Read through and observe the safety instructions in this manual. Safety is your responsibility. Pay particular attention to this symbol. It means that there could be a serious hazard. It emphasizes precautions which have to be complied with in order to prevent accidents.
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① Safety guards. Make sure that ALL GUARDS are in good order and fitted correctly. Do no attempt to start the machine before ensuring this. Pay particular attention to the plastic guards of the PTO shaft. If damaged they must be replaced. The chain locks of the guards MUST always be fitted on a suitable place on the tractor and the machine to prevent the outer plastic guards turning. ② Hydraulics. Be very careful when dealing with hydraulics. Use eye protection and gloves.
C A Model Kg ( lb.
Safety instructions during crane lift Only use approved crane material. The machine must be in working position. Weight is stated on the drawing. Make sure that crane straps are securely fastened before lifting. Use a guide rope (not shown) to keep the machine in position. Be careful - make sure that nobody stand under or near the machine when it is being lifted. Fasten chain (A) on the machine as shown. Lift the machine in crane bracket (B). Use support rope, minimum 6 mm (1/4”) nylon rope at (C) and (D).
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New Machine - be careful ① Read the directions for use. Great care must be taken, when starting up a new machine. Incorrect mounting, wrong operations, etc., can result in expensive repairs and loss of profits. Bush Hog’s factory warranty is voided if the instructions of this manual are not adhered to. NOTICE Be especially attentive to the following when starting a new machine. ② Check that the machine is mounted correctly, and that it is not damaged.
215 mm (8-1/2”) HM2007, HM2008 290 mm (11-1/2”) HM2009 18 HM2009 HM2008 HM2007
Preparation For Use ① The photo shows a fully assembled machine. For shipping,the machine has been partly dismantled - reassembling is carried out according to the assembly instructions later in this manual. Do the following before coupling the machine to the tractor: (A) Check that the stabilizer is equipped with the correct spring. The color of the spring must be as shown.
D B 1 A 3 C Clip Pin Pawl 2 E G F Remove Clip Pin and Rotate Pawl 20
Mounting - coupling The coupling between machine and tractor must be carried out as explained in the instructions. If the machine becomes disconnected from the tractor it could cause severe damage or death. Fitting of the suspension ① Check that the lift arms of the tractor are adjusted to the same height from the ground. Turn the drawbar (A) to the side or remove it. Also check the tire pressure - it is important that the right hand wheel (B) is inflated to the prescribed pressure.
1 A Shortest Cutting Height C 3 D 4 40 (1-1 mm /2”) b c a min.
①-② Lower the machine to the ground. Adjust the top link (A) to the minimum cutting height as shown at (B). PTO shaft ③-④ Only use a tractor PTO shaft set for 540 rpm operation. It is dangerous to couple a tractor with 1000 rpm PTO output to a machine intended for 540 rpm PTO input speed. IMPORTANT PTO ADAPTERS SHOULD NOT BE USED WITH ANY BUSH HOG EQUIPMENT. FAILURE TO FOLLOW THESE INSTRUCTIONS WILL CAUSE DRIVELINE FAILURE AND POSSIBLE TRACTOR DAMAGE.
450 - 480 mm (Model HM2009 - max. 450 mm/18”) (18” - 19”) min.
① Height of the suspension Important The working height of the suspension 450 - 480 mm (18 - 19”) is maintained with the chain (A). The chain is locked as shown at (B). NOTE: If the machine is equipped with high cut skids the working height of the linkage must be 500 - 530 mm (20 - 21”). If these settings are not adhered to, it could result in excessive wear to the skids and gearbox bushings, and cause abnormal wear on the breakaway assembly.
2 1 Transport Position E B 4 C 6 Un-Hitched Support Legs D A 5 E 7 26 G Lock Pawl Engaged F Chain
Transport - Unhitching ①-② Transport As shown the machine can be raised to the vertical position. Raise the machine clear of the ground with the lift arms (A) of the tractor, then raise the machine to the vertical position with the hydraulic cylinder of the machine. Be careful, check that the curtain frame of the machine can clear the rear wheel of the tractor at (B): If necessary the curtain frame can be turned forward by disengaging the pawl (C). Be careful.
1 A 2 B 3 C 95 ± 5 80 ± 5 60 ft./lbs. 70 ft./lbs.
Maintenance During all service operations concerning knives and cutting discs the tractor engine must be stopped and the hand brake activated. If the machine is in the raised position it must be firmly supported. Also refer to page 5, item 10. Re-tighten the bolts of the cutting discs and knives on your new machine before starting and again after about 1 hour of operation. The same applies when any service work is done, for example, replacing knives.
1 D 2 30 E Hole In Front Belt Guard
①-② V-belts The spring is to be tightened so that the end of the spring is in alignment with the edge of the bracket, as shown. Models HM2007 - HM2008 - HM2009 (D) = 0 mm New V-belts should be re-tightened after a few hours operation. Inspection of V-belts is carried out through hole (E). The front part of the belt guard can easily be removed.
A 2 Oil Filler Plug 4 5 D 32 max. 9 mm (11/32”) 3 min.
①-④ Oil - cutterbar The following operations must be carried out in a safe and secure way. During all work near the cutting discs of the machine the tractor engine must be stopped and the PTO shaft disconnected. Check the oil level daily in the following way: ● Place the machine on level ground - check the position of the cutterbar with a level as shown at (A). The bar must be level in this direction. Check also that the cutterbar is level in the driving direction, shown at (B).
1 2 Swath Roller Swath Board 34
Optional equipment ① Right-hand & Left-hand swath rollers The machine can be equipped with swath rollers as shown. ② Right-hand & Left-hand swath boards The machine can be equipped with swath boards as shown.
2 1 Hillside Kit As Seen From Below A m m ”) 5 8 22 -7/ (8 2-3 mm (5/16 - 1/8”) 4 Outside High Skid 3 Inside High Skid B C 36
①-② Optional hillside kit The spring lock keeps the machine in position in proportion to the tractor. If the machine meets a firm obstacle, the lock is released and the machine swings to the rear. Refer to the Hillside Kit Instructions for more information. The spring lock must be adjusted. Screw (A) is eccentric. Tighten the bolt to minimum 225 mm (8-7/8”) Refer to Hillside Kit Instructions.. ③-④ Optional high skid The skids of the machine are fixed and cannot be height-adjusted.
1 3 2 Flat Blades Left Cone 38 Throwing Wings
① Special flat knives Special flat knives are recommended for rocky conditions. Special flat knives may be used on all models. However, for Models HM 2007 and HM2009, the number one cutting disc, next to the gearbox, must also be changed. The special flat knives and number one disc are available from your dealer. ② Throwing wings Throwing wings are recommended for very light grass conditions. ③ Left cone The cone (B) at gearbox is standard equipment for model HM2008 and model HM2009.
2 A B 1.4 - 2.8 mm (.055 - .110”) E 500 mm (19-5/8”) 1 F 0 - .05mm (0 - .
Directions for repair Repair must only be carried out by competent persons with experience of using workshop equipment and trained in the repair of agricultural machinery in a safe and responsible manner. ①-② Stabilizer Be careful. Remove stabilizer from machine for disassembly. Never disassemble the stabilizer (A) without use of special tools (B). The spring is tightened to 800 - 1000 kg (1764 - 2205 lbs.). Special tools (B) are available.
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①-➃ Cutterbar NOTICE Be particularly attentive when checking or repairing the cutterbar - it rotates at 3000 rpm. Take care that worn bearings and gear wheels must be replaced in time. Otherwise a single damaged bearing might cause damage to the whole cutterbar. Use LOCTITE when stated - hardening time approx. 15 minutes. Intermediate gear (illustration 1) Inspection of intermediate gear can be carried out through the collar bearings holes.
Problem/Fault Analysis and Corrections Problem Cutterbar swinging to the rear or cannot follow the ground. Possible Cause Correction Stabilizer lock engaged. Disengage stabilizer lock. Stabilizer not correctly adjusted. Adjust right hand lifting arm tractor correctly. Stabilizer fitted in wrong hole on the tilting bracket or wrong tilting bracket in use. Check correct fitting. Wrong stabilizer spring fitted. Model HM2007 and model HM2008 thread diameter = 13mm (.51”) . Color = green.
Winter storage When the season is finished, preparation for winter storage should take place immediately. Start by thoroughly cleaning the machine - then grease the machine thoroughly so that any remaining water is pressed out of the bearings. Change the oil in cutterbar and gearbox and let the machine rotate for a few minutes. Go over the machine for wear and other defects - make a note of the necessary parts required for the next season and place your order for spare parts.
Conversion Chart BASIC UNIT: SIMETRIC UNIT: CONVERSION NUMBER: LENGTH . . . . . . . . . . . . . . . . . . . 1m = 39,4 in = 3,3 ft = 1,1 yd = 0,00062 miles (US) AREA . . . . . . . . . . . . . . . . . . . . . . 1 m2 = 1,2 yd2 = 10,8 ft2 = 0,00025 acre = 0,0001 ha VOLUME . . . . . . . . . . . . . . . . . . . 1 dm3 (1 l) = 61 in = 0,035 ft = 0,22 gallons (lmp) = 0,26 gallons (US) = 1,76 pints SPEED . . . . . . . . . . . . . . . . . . . .
Models HM2007, HM2008 & HM2009 ASSEMBLY INSTRUCTIONS NOTICE For transport from the factory to the user the machine has been dismantled into main components. The following assembly instructions will tell you how to reassemble the machine. Please follow the assembly order shown and use the types and sizes of bolts shown for assembly of the parts.
Figure 2 Three Point Lift Hitch “U” Bracket Mainframe assembly unfolded from cutter bar. Three point lift hitch and parking stand have been assembled to mainframe. Cutter bar remains in bottom section of steel shipping frame. Cutter Bar Pivot Pin Mainframe Support Leg ASSEMBLY 1. Unbolt steel shipping frame. (Figure 1) These frame members will be discarded. Remove plastic wrapping and cut wiring that holds loose pieces together. block on the inside and the two square washers on the outside.
Figure 4 Front Support Leg 9. Install gearbox skid, then gearbox swathboard using the 12 x 40mm bolt that was left loose previously. Use two bolts at front to connect skid and swathboard. (Figure 6) At the rear side of gearbox, use twisted strut to connect skid and swathboard. (Figure 7) Figure 6 Swathboard Skid Apply Grease At Contact Points Figure 7 Skid Swathboard 7. Fasten curtain frame upright bracket to gearbox using (3) 12 x 30mm bolts, and (1) 12 x 40mm bolt.
10. Remove pin from top of three point lift frame to allow instrallation of stabilizer cylinder assembly. (Figure 8) Attach Hydraulic Hose With Clamp Figure 8 Cylinder Mounting Hole Locations Model HM2009 Models HM2007 & HM2008 Before mounting stabilizer, pull out the piston/rod of the hydraulic cylinder. 11. Remove pin from lower connection link and stop link to allow installation of lower end of stabilizer. 12. Pin stabilizer in appropriate top hole according to size of cutter bar.
14. Remove bolts from hubs to allow installation of blade cutting discs. (Figure 10) Refer to illustration on next page for correct positioning of blade cutting discs. Pay particular attention to blade rotation and arrange discs at 90° to each other. NOTE: The end discs (outer end only on 7’ model) use longer bolts to also hold the cones in place and the nut guards on the cone discs are “cut out” for clearance. A snap-in plastic cap is provided for each cone.
CUTTING DISCS ARRANGEMENT B A C D Blade Rotation Gearbox Model HM2009 C B A B A B D Working Direction Gearbox Model HM2008 C B A B A D Working Direction Gearbox Model HM2007 C B A B Working Direction 52 B
15. Assemble curtain frame as shown in (Figure 11). Do not attach curtain frame to upright bracket at this time. Use Flatwasher And Locknut On Bottom Of Bolt Figure 11 Curtain Frame 10 - 35 mm Top Support Upright Bracket 10 - 30 mm Shown without curtain for illustration only. Curtain must be installed over frame before curtain frame can be attached to upright bracket. Top support is installed after curtain and frame are attached. Figure 12 Attaching Curtain Frame To Upright 16.
18. Attach front edge rail to frame. (Figure 14) before inner end of support is bolted to the upright bracket. (Refer to Figures 5 & 11) Fasten curtain to frame with bolts and flat washers as shown. (Figure 16) 19. Install top support over curtain and frame. (Figure 16) Note that pawl must be inserted into place Figure 14 10 - 30 mm 30 -10.5 - 3 mm Outer End Rail 10 - 40 mm Figure 15 10 -30 mm 30 -10.
20. Attach limit chain and circular shield as shown in (Figure 17). input shaft of hay mower. Insure that clutch end snaps into place. 21. Attach Slow Moving Vehicle (SMV) bracket to three point lift hitch as shown. (Figure 18) 24. The hook end of the safety chain will be attached to the tractor after the hay mower is mounted to the tractor three point hitch. The free end of the chain is then inserted through the bracket on the hitch frame of the hay mower.
OPTIONAL EQUIPMENT Right Hand Swath Wheel Left Hand Swath Wheel Right Hand Swathboard (Shipped preassembled) 12 - 35mm (Shipped from factory with bolts in mounting bracket) 56
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.
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BUSH HOG ® P.O. Box 1039 ● Selma, AL 36702-1039 Telephone (334) 872-6261 , L.L.C.
