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Фрагмент инструкции
6. Make certain deflector shields (chains, bands, etc.) are in good repair to minimize injuries to persons by the discharge of the high speed thrown objects. 7. Inspect wheel(s) for wear, damage, or foreign objects.Repair or replace if necessary. 8. Perform BEFORE EACH USE lubrication per paragraph 4-2. 9. During operation, listen for abnormal sounds which might indicate loose parts, damaged bearings or other damage. AFTER EACH USE 1. Clean all debris from machine especially underside of deck and affixed safety decals. Replace any missing or illegible decals. 2. Inspect cutter for worn or damaged components. Repair/replace before next use. Any replacement components installed during repair shall include the components current safety decals specified by the manufacturer to be affixed to the component. 3. Store cutter in a dry place. 4-2 LUBRICATION (Figure 4-1) NOTE The multi-purpose grease referenced in this section is an NLGI Grade 2 type grease. BEFORE EACH USE 1. Driveline Universal Joints -Apply multi-purpose grease with grease gun. 2. Wheel Bearings-Apply multi-purpose grease with grease gun. 3. Wheel Pivots-Apply multi-purpose grease with grease gun. 4. Driveline Guard-Apply 2-3 shots of multi-purpose grease with grease gun to plastic fitting. 10 5. PTO Driveline -Disconnect PTO driveline, pull the two sections apart, apply thin coat of multipurpose grease to inside of outer (female) sec tion. Reassemble sections and install. Pull each section to be sure driveline and shields are securely connected. Make certain PTO shielding is in good condition. 6. Gearbox - Add EP80W-90 gear oil as necessary to bring oil level to check plug on top of housing. (4) Before Each Use (5) Before Each Use Figure 4-1 Lubrication (6) Before Each Use (3) Before Each Use (2) Before Each Use To remove yoke shield: Turn slotted head 90° with screwdriver, remove turn screw (1) Before Each Use and slide cover back. WARNING THE CUTTER CAN FALL FROM HYDRAULIC SYSTEM FAILURE. TO AVOID SERIOUS INJURY OR DEATH, SECURELY SUPPORT CUTTER BEFORE WORKING UNDERNEATH. 4-3 BLADE HOLDER ASSEMBLY REMOVAL AND INSTALLATION A. Remove the lower shaft nut and lockwasher. B.Wearing heavy gloves, grasp blade holder and pull off tapered shaft. If stuck, align bolt with access hole in top of cutter deck. Using sledge hammer and a piece of pipe, strike blade bar. Rotate pan to the other blade bolt and strike blade bar. Repeat until blade holder comes off. Care should be taken not to damage blade bolt threads. REPLACEMENT A. Replace blade holder and tighten the lower shaft nut to 600 ft./lbs. If a torque wrench is not available, the nut should be tightened with a wrench having a three foot handle, or a section of pipe over the wrench handle, if a wrench of this size is not available. B. Strike the blade holder several times with a heavy hammer and retighten lower shaft nut. This should be repeated several times. 4-4 BLADE REPLACEMENT (Figure 4-2) It is not necessary to remove the complete blade holder assembly to replace the blades. Blade bolts are accessible through a hole in the top of the cutter deck. Always replace both blades on a spindle using two blades having the same weight. Use only genuine Bush Hog replacement parts. A. Raise cutter and securely block in position. Figure 4-2 Blade Nut Removal 1-11/16” Socket B. Remove nuts from blade bolts using a 1-11/16” socket through the access hole in the deck. C. Inspect blade bolt shoulder for wear. Replace if necessary. D. Assemble new blades to blade holder using blade bolts, nuts and lockwashers. Tighten nuts to 450 ft./lbs. Strike blade bolt head with heavy hammer to seat, then retighten. E. Check to be sure blades swing 360° freely. If blades will not swing freely, remove, locate problem, and repair. Operating cutter when blades will not swing freely will cause excessive vibration, damaging implement. 4-5 SLIP CLUTCH OPERATIONAL CHECK After implement had been stored for 30 days or more, perform the following operational check: A. Loosen eight nuts retaining clutch springs 1/3 turn or until spring can be turned with fingers. B. With tractor at idle speed, engage tractor PTO drive for 2-3 seconds. Clutch should slip without 11 turning blades. If clutch does not slip, contact your authorized Bush Hog dealer. C. Retighten nuts to within 1/64” of original position. Initial spring length is shown in Figure 4-3. WARNING OVERTIGHTENING SPRING NUTS MAY CAUSE DAMAGE TO IMPLEMENT AND/OR TRACTOR DUE TO INCORRECT SLIP CLUTCH TORQUE SETTING. ALWAYS FOLLOW THE PROPER ADJUSTMENT PROCEDURE. 4-6 SLIP CLUTCH ADJUSTMENT The slip clutch is factory preset to the correct torque for protecting implement and tractor. Periodic adjustment is recommended; refer to section 4-5. Should adjustment be needed, first check to be sure all spring lengths are the same. Initial spring length is shown in Figure 4-3. If necessary, adjust nut on any spring that is unequal. Adjust all eight spring retaining nuts 1/3 of a turn (2 flats on a ...
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