OPERATOR’S MANUAL BRUSH MOWER MODEL K4080 PLEASE READ THIS MANUAL CAREFULLY AND KEEP READY AT ALL TIMES KUBOTA®
CONTENTS BEFORE OPERATION ——————————————————————— 1 SAFE OPERATION —-——————————————————————— 2-3 ATTACHING TO THE EXCAVATOR —-———————————————— 4-5 ADJUSTMENT & MAINTENANCE —————————————————— 6 BASIC OPERATIONS —-———————-—————————————— 7-9 MAINTENANCE ——————————————————————————10 REPLACING KNIVES——–————————————————————— 11 HYDRAULIC DIAGRAM ———–—–————–--———————————— 12 ATTACHMENT TRANSPORT -—————————————————–—— 13 TROUBLESHOOTING ———————————–—————————–——14 TROUBLESHOOTING (cont.
BEFORE OPERATION 1 BEFORE OPERATION 1. Keep children out of the operating area under the watchful eye of another responsible adult. 2. Never allow another person in the operator’s station of the excavator while the machine is in operation. 3. Stop machine operation if a person approaches the mowing area. 4. The operator should walk through the mowing area to identify and locate hazards. 5.
SAFE OPERATION 2 SAFETY Failure to heed these warnings may result in personal injury or death. • Before operating this machinery read the owner’s manual carefully. • Use OSHA approved eye, ear and head protection to protect the operator from any flying debris and noise. • All personnel except operator should be 150 feet clear of machinery before starting or operating it. • Never use drugs or alcohol before or while operating your brush mower.
SAFETY (cont.) SAFE OPERATION 3 • Stop the operation of this machine when people or vehicle driver’s vision becomes obscured, caused by the discharge of materials and dust. Also avoid operating this attachment in unusually foggy or dusty conditions or at night. • Never leave the excavator or the brush shredding attachment unattended while it is in the lifted position or while the shredder is spinning. • Keep away from rotating elements to prevent entanglement.
ATTACHING TO THE EXCAVATOR 4 ATTACHING TO THE EXCAVATOR • Be sure to inspect all safety devices (including safety shields, guards, deflectors, etc.) before each use. Safety Device Examples Shaft protection cap Motor & gearbox cover Debris chain curtain guarding 1 2 3 • Maintain all safety decals and make sure they are visible to the operator and bystanders. If decals are worn, contact your nearest Kubota dealer for replacements. • Replace bent or broken blades with new ones.
ATTACHING TO THE EXCAVATOR 5 ATTACHING TO THE KX080 ATTENTION The K4080 brush mower is designed specifically for the Kubota KX080 excavator and should not be used on any other machine. Make sure the person who is attaching this brush mower has knowledge of attaching regular buckets and can do so in a safe manner. The method used most often for attaching this brush mower is the “curl-in” method.
ADJUSTMENT & MAINTENANCE 6 ADJUSTMENT & MAINTENANCE CLEANING YOUR BRUSH MOWER To preserve life of paint and decals, wash the brush mower after each use. The preservation of your brush mower’s decals is essential to safety, so make sure they are kept in good condition. It is also recommended that some sort of degreasing solution be used on all bearings. • Check for excessive grease in bearing areas. Clean off any excessive amount.
BASIC OPERATION 7 BASIC OPERATION Running Your Attachment The K4080 brush mower is designed to cut all types of vegetation such as grass, brush and small trees. The condition of your terrain and the material to be cut should be evaluated for the best results. House Rotation Mowing House Rotation Mowing Brush on flat terrain can be cut by rotating the house control from side-to-side and keeping the cutter head just above ground level, moving the excavator forward 40” at a time into uncut material.
BASIC OPERATION 8 BASIC OPERATION 1. Before beginning your job, walk the mowing area and clear all hidden hazards such as large rocks, stumps, utility lines and hidden debris like broken glass, bottles and miscellaneous materials. Projected debris can cause injuries to operators, pedestrians, livestock and property. 2. While inspecting your work area for debris, be on the lookout for bees, fire ants, poison ivy and poison oak.
BASIC OPERATION 9 BASIC OPERATION Starting Procedure 1. While the excavator’s engine is turned OFF, and all moving parts have completely stopped, remove outer spindle cover. 2. Check to see that the brush mower is in the down position and blades are not touching the ground. Start the engine and set throttle at idle speed. Important: Do not start the operating vehicle until the brush mower has been carefully checked for correct assembly and installation.
MAINTENANCE 10 MAINTENANCE ATTENTION Before doing any service work, observe the following safety rules: 1. Remove the ignition key from the operating vehicle and allow all movements to stop before leaving the operator’s position and starting any maintenance activities. 2. Allow all movements to stop before leaving the operator’s position to lubricate or clean the machine. 3.
REPLACING KNIVES 11 REPLACING KNIVES IMPORTANT Never operate brush mower with a damaged knife. This will make the cutter drum unbalanced and severe damage may result! 1. Worn knives, bolts, and spacers must be replaced. Neglecting the replacement of these parts could cause the cutting drum to run out of balance. Do not mix new parts with older, worn parts. Always replace wear washers when blades are replaced. Failing to do so could cause the cutter drum to run out of balance. 2.
HYDRAULIC DIAGRAM 12 HYDRAULIC DIAGRAM The diagram below represents the hydraulic plumbing system for the Kubota K4080 Brush Mower attachment. SP1 left side of dipper (female) SP1 right side of dipper (male) Relief valve Non adjustable To reverse cutter drum rotation, reverse the hoses on the motor side of the protection valve. On quick couplers, the female end is usually the pressure in.
TRANSPORT 13 TRANSPORT ATTENTION Allow all movements to stop before leaving the operator’s position to lubricate or clean the machine. Before working on or underneath the brush mower, place blocks on both sides of the operating vehicle tires or treads and under each end of the mower to prevent accidental lowering of the machine. Remove the ignition key from the operating vehicle and allow all movements to stop before beginning work.
TROUBLESHOOTING 14 TROUBLESHOOTING T= Trouble C= Countermeasure T. Where is the serial number for my machine? C. The serial number for your brush shredder is stamped next to the mounting bracket on the opposite side of the motor. Model & Serial Number Plate Location Serial Number Stamped On Top Of Mower T. Where do I find replacement parts? C. Your local Kubota dealer. T. How often should I change my knives? C. Replacing the cutting knives is a performance issue.
TROUBLESHOOTING cont. 15 TROUBLESHOOTING cont. T= Trouble C= Countermeasure T. How do I reverse the cutter drum rotation? C. Refer to the Adjustments and Maintenance section of this manual for information on reversing the hydraulic hoses at the motor to reverse the cutter drum direction. T. How do I replace my knives? C. Refer to the Adjustments and Maintenance section of this manual for information regarding the replacement of knives. T.
SPECIFICATIONS 16 SPECIFICATIONS K4080 Brush Mower Specifications Working Width Overall Width Weight Number of knives Capacity Hyd. Flow required 40” (101.6 cm) 58” (127 cm) 1,325 lbs. (600 kg) 24/12 –77 lbs.(35 kg) 6“. (15.3cm.
KNIFE ASSEMPLY 17 KNIFE ASSEMBLY 7 5 1 6 3 4 2 # 1 2 3 4 5 6 7 Description BOLT, KNIFE 1"x4" GR8 -2 1/2" Shoulder KNIFE, SHREDDER SPACER, 1" Flat Washer (KNIFE BOLT) NUT, CASTLE 1" (KNIFE) PIN, ROLL 3/16"x1 1/2" (KNIFE BOLT) KNIFE, SHREDDER (CENTER) WASHER, LOCK 1" (KNIFE BOLT) Model Part # All All All All All All All 77700-00862 77700-00853 77700-00863 77700-00866 77700-00866 77700-00854 77700-00864 Quantity 12 24 24 24 12 12 12
DRIVE ASSEMBLY 18 DRIVE ASSEMBLY 11 10 1 6 4 12 2 5 3 7 6 9 # 1 2 3 4 5 6 7 8 9 10 11 12 Description GUARD, WIRE - DRIVE SIDE SEAL, SHAFT 3 1/2"x2 3/4" OD WASHER, DAMPENER HOUSING, SPINDLE BREATHER BEARING, BALL 50mm ANGULAR CONTACT NUT, LOCK (DRIVESHAFT) O RING, SPINDLE HOUSING 5/32"x17" MOTOR, HYD 26 gpm flow GUARD, WIRE - IDLER SIDE BEARING, FLANGE (1 15/16" 4 BOLT) HOSE, GREASE 1/4"x18" Model All All All All All All All All All All All All Part # 77700-00860 77700-00857 77700-00858 77700-00
HYDRAULIC PLUMBING 19 HYDRAULIC PLUMBING Zero Pressure Return to Tank Pressure In 3 2a 2b 2 7 4 5 6 # 1 2 2a 2b 3 4 5 6 7 Description Hydraulic Motor-24 GPM Motor Protection Valve MPV Pressure Relief MPV Check Valve Adapter, 12 MORB x 12 MJIC 90 Coupler, 3/4" FEM FLUSH FACE Coupler, 3/4" MALE FLUSH FACE Hose, 44 " 12FJIC x 12 FJIC Breather 1 Model K4080 K4080 K4080 K4080 K4080 K4080 K4080 K4080 K4080 Part # 77700-00882 77700-00873 77700-00874 77700-00875 77700-00876 77700-00877 77700-00878 777
Notes 20 NOTES
K4080 Complete Parts List Qty.
KUBOTA TRACTOR CORPORATION 3401 Del Amo Blvd., Torrance, CA 90503, U.S.A. Telephone: (310) 370-3370 Western Division: 1175 S. Guild Ave., Lodi, CA 95240 Telephone: (209) 334-9910 Central Division: 14855 FAA Blvd.
