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BUSH HOG ® GEARDRIVE HAY MOWERS SERIES GHM 700, GHM 800, GHM 900 GHM 1800 & GHM 1900 Operator’s Manual ASSEMBLY OPERATION MAINTENANCE 1297 $4.00 Part No. 99707...
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If your manual should become lost or destroyed, Bush Hog will be glad to provide you with a new copy. Order from Bush Hog, P. O. Box 1039, Selma, Alabama 36702-1039. Most of our manuals can also be downloaded from our website at www.bushhog.com.
It is the Retail Customer’s responsibility to deliver the product to the authorized Bush Hog Dealer, from whom he purchased it, for service or replacement of defective parts which are covered by warranty.
2. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident. 3. If parts not made or supplied by Bush Hog have been used in connection with the unit, if, in the sole judge- ment of Bush Hog such use affects its performance, stability or reliability.
DEALER PREPARATION CHECK LIST BEFORE DELIVERING MACHINE — The following check list should be completed. Assembly completed. Gearbox filled with oil. All fittings lubricated. All shields in place and in good condition. All fasteners torqued to specifications given in Torque Chart. All decals in place and readable.
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.
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.
INTRODUCTION AND DESCRIPTION 1-1 INTRODUCTION We are pleased to have you as a Bush Hog cus- tomer. Your GHM hay mower has 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 mower in top operating condition.
PREPARATION FOR USE WARNING TO AVOID SERIOUS INJURY OR DEATH NEVER STAND BETWEEN TRACTOR AND MOWER WHILE TRACTOR IS BEING BACKED TO HITCH. WARNING TO AVOID SERIOUS INJURY OR DEATH ADDITIONAL TRACTOR FRONT BAL- LAST MAY BE NEEDED FOR STABLE OPERATION AND TRANSPORT OF MOWER.
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D. Attach PTO driveline to tractor 540 rpm or 1000 rpm PTO shaft. Make certain driveline is securely connected at both ends. Attach PTO drive- line shield safety chain on both the implement and tractor ends. (Figure 2-3) CAUTION DO NOT USE A PTO SHAFT ADAPTER WITH THIS IMPLEMENT.
OPERATING INSTRUCTIONS 3-1 GENERAL SAFETY Only qualified people familiar with this operator’s manual should operate this machine. Operator should wear hard hat, safety glasses and safety shoes. The operator should read, understand and practice all safety messages shown on the caution, warning and danger decals affixed to the mower to avoid serious injury or death.
Set tractor throttle for 540 PTO rpm for models GHM 700, GHM 800, and GHM 900 and 1000 PTO rpm for models GHM 1800 and GHM 1900. F. Place tractor in a gear that will give proper speed for terrain and crop conditions , then begin mowing.
4-3. Always replace both blades with two blades equal in weight. Use only genuine Bush Hog replacement parts. 4. Check blade bolts for tightness. Tighten to 50 ft./lbs. 5. Make certain all shields are in place and in good condition.
AFTER EACH USE 1. Clean all debris from machine. Replace any missing or illegible decals. 2. Inspect mower for worn or damaged components. Repair or replace before next use. Any replace ment components installed during repair shall include the components current safety decals specified by the manufacturer to be affixed to the component.
Always replace both blades on a spindle to retain balance. When replacing blades, the attaching bolt and nut should also be replaced. Use only genuine Bush Hog replacement parts. (Figure 4-2) Figure 4-2 Blade Bolt Blade...
E. Prior to reassembling the spindle assembly onto the cutter bar (see your Bush Hog Repair Parts Catalog for the spindle assembly part number), thor- oughly clean the top face of the cutter bar casing where the spindle was originally located of all old sealant, oil and dirt.
STANDARD CROP DIVIDER (Figure 4-6) Reattach the cap and cutter to the crop divider by reinstalling the four(4) capscrews through the top of crop divider and tightening securely. OPTIONAL CROP DIVIDER (Figure 4-7) Tilt cap sideways and insert cap assembly into the top of the crop divider.
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.
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Figure 4-12 Cutter Bar Arrangement and Blade Rotation 9’ MAIN GEARBOX The blades of adjacent oval discs must be 90° apart from one another as shown above to ensure proper timing. 8’ MAIN GEARBOX FORWARD NOTE 7’ MAIN GEARBOX...
BEFORE OPERATING THE EQUIPMENT, IF YOU HAVE ANY QUESTIONS REGARDING THE PROPER ASSEMBLY OR OPERATION, CONTACT YOUR AUTHORIZED BUSH HOG DEALER OR REPRESENTATIVE. A. Attach hitch assembly to cutter bar assembly using 1 x 9”...
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of front and rear curtain support. Q. Fasten transport latch to curtain support beam using a 5/8 x 1-3/4” bolt and locknut. Pin opposite end in place with faspin. R. Install curtain stop weldment flush with end of curtain support beam using one 5/8” U-bolt, lock- washer, flatwashers and nuts.
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.
*Use 75% of the specified torque value for plated fasteners. Use 85% of the specificed torque values for lubricated fasteners. Proper toque for American fasteners used on Bush Hog equipment. Recommended Torque in Foot Pounds (Newton Meters).* BOLT DIAMETER WRENCH (IN.) “B”...
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® BUSH HOG , L.L.C. P.O. Box 1039 Selma, AL 36702-1039 Telephone (334) 874-2700 www.bushhog.com...