Kubota Z411, Operator'S Manual

Page 1: ...MANUAL MANUAL DEL OPERADOR English Spanish U S A Code No Código n K3071 7121 4 AX C 5 5 AK KUBOTA Corporation 2016 PRINTED IN U S A IMPRESO EN E E U U READ AND SAVE THIS MANUAL LEA Y CONSERVE ESTE MANUAL Z 4 1 1 Z 4 2 1 Z 4 2 1 T 1SFRT00108A01 ...

Page 2: ...pend on KUBOTA KUBOTA Corporation es Desde su creación en 1890 KUBOTA Corporation ha crecido hasta convertirse en una de las empresas más importantes de Japón Para conseguir esta posición la empresa a lo largo de los años ha diversificado la gama de sus productos y servicios de forma notable hasta llegar hoy en día con 30 fábricas y 35 000 empleados a fabricar por encima de 1 000 elementos distint...

Page 3: ...OPERATOR S MANUAL 1SFRT00108A01 READ AND SAVE THIS MANUAL MODELS Z411 Z421 Z421T ...

Page 4: ...ing Safety Alert Symbol Read Operator s Manual Gasoline Fuel Fuel Level Parking Brake Engaged position Parking Brake Disengaged position Engine Stop Engine Run Starter Control Power Take Off Switch Control Off Position Disengaged Power Take Off Switch Control On Position Engaged Hours Cutting Height Fast Slow Engine Speed Control Choke Abbreviations Definitions ABBREVIATION LIST API fpm HST m s PT...

Page 5: ...l system It will give you long satisfactory service To obtain the best use of your machine please read this manual carefully It will help you become familiar with the operation of the machine and contains many helpful hints about machine maintenance It is KUBOTA s policy to utilize as quickly as possible every advance in our research The immediate use of new techniques in the manufacturing of prod...

Page 6: ... 29 COLD WEATHER STARTING 30 WARMING UP THE ENGINE 30 1 Warm up and transmission oil in the low temperature range 30 JUMP STARTING 30 STOPPING THE ENGINE 31 OPERATING THE MACHINE 32 OPERATING A NEW MACHINE 32 1 Changing lubricating oil for new machine 32 2 Engine break in 32 3 Machine break in 32 OPERATING THE FOLDABLE ROPS 33 1 Folding the ROPS 33 2 Raising the ROPS to the upright position 34 3 A...

Page 7: ... screen 52 4 Checking the transaxle fluid level 53 5 Checking the tire pressure 53 5 1 Inflation pressure 53 6 Checking the dial cam rotation strength 54 7 Checking movable parts 54 EVERY 25 HOURS 54 1 Cleaning the cylinder and cylinder head fins 54 2 Cleaning the foam element 55 EVERY 50 HOURS 55 1 Checking the engine start system 55 2 Checking the OPC system 56 3 Checking the carbon canister air...

Page 8: ...EARS 67 1 Replacing hydraulic hoses 67 2 Replacing fuel lines 67 SERVICE AS REQUIRED 67 1 Replacing fuses 67 2 Checking and replacing blades 68 3 Replacing the mower belt 69 ADJUSTMENT 70 MOTION CONTROL LEVER 70 1 Adjusting the motion control lever operating strength 70 2 HST neutral 70 3 Maximum speed forward 71 4 Motion control lever alignment 71 4 1 Checking the alignment 71 4 2 Aligning the mo...

Page 9: ...4 Z400 ...

Page 10: ...otection gloves and so on as appropriate or required Do not wear radio or music headphones while operating the machine Do not operate the machine or any attachments while using or texting with a cellphone or any other electronic device Safe operation requires your full attention Carefully check the vicinity before operating machine or any implement attached to it Clear the work area of objects suc...

Page 11: ... are in neutral lock the parking brake is applied and the power take off PTO is disengaged OFF Do not start the engine by shorting across starter terminals The machine may start in gear and move if the normal starting circuitry is bypassed Do not operate or idle the engine in a non ventilated area Carbon monoxide gas is colorless odorless and deadly Do not start the engine when the front or rear t...

Page 12: ...everse with the blades engaged only when it is absolutely necessary and make sure that the area to the rear is clear of children before doing so 4 Operators age 60 years and older Data indicates that operators age 60 years and older are involved in a large percentage of machine related injuries These operators should evaluate their ability to operate the machine safely enough to protect themselves...

Page 13: ...blic roads Shut off fuel while storing or transporting Tie the machine down securely using straps chains cables or ropes Both front and rear straps should be directed down and outward from the machine SERVICING AND STORAGE 1 Servicing the machine Before servicing park the machine on a firm level surface and apply the parking brake Remove the key to prevent an accidental start up Allow the machine ...

Page 14: ...hine free of grass leaves or other debris build up Do not change the engine governor setting or overspeed the engine Do not run the machine inside a closed area Mower blades are sharp and can cut your hands Wrap the blade s or wear gloves and use extra caution when servicing them Never straighten or weld blades Keep nuts and bolts especially blade attachment bolts tight and keep equipment in good ...

Page 15: ...hout adequate ventilation To reduce fire hazards clean the machine thoroughly before storage Dry grass and leaves around the engine and muffler may ignite Let the engine cool before storing and do not store near flames Shut off fuel while storing or transporting SAFE OPERATION 10 Z400 ...

Page 16: ...SAFETY LABELS SAFE OPERATION Z400 11 ...

Page 17: ...SAFE OPERATION 12 Z400 ...

Page 18: ...SAFE OPERATION Z400 13 ...

Page 19: ...SAFE OPERATION 14 Z400 ...

Page 20: ...SAFE OPERATION Z400 15 ...

Page 21: ...ged or missing safety labels with new labels from your local KUBOTA Dealer If a component with safety label s attached is replaced with a new part make sure new label s is are attached in the same location s as the replaced component Attach new safety labels by applying on a clean dry surface and pressing any bubbles to the outside edge SAFE OPERATION 16 Z400 ...

Page 22: ...ce be sure to consult your local KUBOTA Dealer When in need of parts be prepared to give your dealer the machine ROPS engine and mower serial numbers Locate the serial numbers now and record them in the space provided Type Serial no Machine ROPS Engine Mower Date of purchase Name of dealer To be filled in by purchaser 1 Machine identification plate 2 Machine serial no 1 ROPS serial no 1 Engine ser...

Page 23: ... the warranty period The engine is warranted under the Kawasaki Limited Warranty a copy of which has been provided with your machine purchase Refer to the Kawasaki Limited Warranty for details regarding warranty coverage owner obligations warranty limitations and liabilities SCRAPPING THE MACHINE AND ITS PROCEDURE To put the machine out of service correctly follow the local rules and regulations o...

Page 24: ...944 37 2 Rear mm in 1000 39 4 1070 42 1 Weight with mower deck kg lbs 388 856 with 48 395 870 with 54 410 904 with 60 Traveling system Tires Front 13 x 5 0 6 pneumatic tire smooth 13 x 6 5 6 pneumatic tire smooth Rear 24 x 9 5 14 4PR low profile turf 24 x 12 14 4PR low pro file turf Traveling speeds Forward mph km h 0 to 10 0 0 to 16 0 Reverse mph km h 0 to 5 0 0 to 8 0 Steering 2 hand levers Tran...

Page 25: ...ethod Parallel linkage Adjustment of cutting height Dial gauge Cutting width mm in 1219 48 1372 54 1524 60 Cutting height mm in 38 to 127 1 5 to 5 0 Weight approximation kg lbs 69 152 75 165 90 198 Blade spindle speed r s rpm 72 4320 1 63 7 3820 1 56 7 3400 1 Blade tip velocity m s fpm 95 5 18800 1 95 18700 1 93 18300 1 Blade length mm in 423 16 7 474 18 7 523 20 6 Number of blades 3 Dimensions To...

Page 26: ...ximum loading weight Implement weight W1 Maximum total weight Front axle Wf Rear axle Wr Z411KW Z421KW 108 kg 238 lbs 545 kg 1202 lbs 166 kg 366 lbs 653 kg 1440 lbs Z421KWT 113 kg 249 lbs 555 kg 1225 lbs 166 kg 366 lbs 668 kg 1473 lbs IMPORTANT Do not operate with trailer on an incline greater than 10 Total towed weight must not exceed the combined weight of the pulling machine ballast and operato...

Page 27: ... lock pedal 27 38 3 Motion control lever 27 36 4 Seat belt 35 5 Cup holder 6 Operator s seat 35 7 Foldable ROPS 33 8 Mower lift pedal 41 9 Cutting height control dial 41 10 Key switch 29 11 Choke knob 28 12 Hour meter 29 13 PTO switch 43 14 Throttle lever 35 INSTRUMENT PANEL AND CONTROLS INSTRUMENT PANEL SWITCHES AND HAND CONTROLS 22 Z400 ...

Page 28: ...OWER RCK48P RCK54P 1 Anti scalp roller front bolt shift type 41 2 Discharge deflector RCK60P 1 Anti scalp roller front bolt shift type 41 2 Discharge deflector MOWER INSTRUMENT PANEL AND CONTROLS Z400 23 ...

Page 29: ...e direction of the front tires as shown in the following illustration 4 Place the mower deck at the right side of the machine 5 Slide the mower deck under the machine then lower the mower lift links 6 Put a Φ9 5 mm 0 37 in x 100 mm 4 in shaft in the hole of the front right side lift link 1 Shaft Φ9 5 mm x 100 mm 0 37 in x 4 in 2 Clevis pin 3 Lift link IMPORTANT Use a shaft longer than 100 mm 4 in ...

Page 30: ...NG THE MOWER DECK WARNING To avoid serious injury or death Push the mower deck lift pedal with enough strength If the strength is not enough the mower link will jump up when the Φ9 5 mm 0 37 in shaft is removed from the right side of the machine due to the power of the spring Keep all hands and feet clear of the mower links during this time 1 Raise or lower as needed the mower deck to a cutting he...

Page 31: ... 3 Lift link 6 Remove the 4 clevis pins mounting the mower deck 7 Push the mower lift pedal toward the seat and remove the Φ9 5 mm 0 37 in shaft from the hole in the rear right side lift link 8 Slowly push the mower lift pedal to the full up position 9 Slide the mower deck from under the machine to the right side of it MOWER MOUNTING 26 Z400 ...

Page 32: ...om either side step over the mower deck STARTING THE ENGINE 1 Sit on the operator s seat Put on the seat belt 2 Apply the parking brake To apply the parking brake a Depress the parking brake pedal firmly with the left side of your right foot b While keeping the parking brake pedal depressed use the right side of your right foot to depress the parking brake lock pedal c Release the parking brake pe...

Page 33: ...ey switch Turn the key switch to the START position and release the key to the ON position when the engine starts See Key switch on page 29 IMPORTANT Because of the start interlocks the engine can not be started except when the PTO switch is disengaged OFF the parking brake is applied motion control levers are in NEUTRAL LOCK position and the operator is sitting on the seat 8 Warm up the engine by...

Page 34: ... key switch to the START position while the engine is running When the temperature is below 0 32 run the engine at medium speed to warm up the lubricant of the engine and the transmission for at least 10 minutes If the machine is operated before the lubricant is warm enough the machine operating life will be shortened Do not operate the machine under full load until it is sufficiently warmed up 2 ...

Page 35: ...equirement Higher than 0 32 Approximately 5 minutes 10 to 0 14 to 32 5 to 10 minutes 20 to 10 4 to 14 10 to 15 minutes Below 20 4 More than 15 minutes IMPORTANT Do not operate unless the engine is well warmed up If operation is attempted while the engine is still cold the hydraulic mechanism will not function properly and its service life will be shortened If noises are heard after you operate the...

Page 36: ...to the machine electrical system Use only a matching voltage source when jump starting a low or dead battery STOPPING THE ENGINE 1 After slowing the engine to half speed turn the key switch to the OFF position 2 Remove the key 3 Do not leave the key switch at ON key in the ON position as the battery will discharge when the engine is not running 4 Apply the parking brake 5 If stopping the machine f...

Page 37: ...o avoid serious injury or death The machine relies upon the engine driven transmission for speed direction and motion control If the engine is not running the machine cannot be driven or controlled If the engine stops when operating on a slope apply the parking brake immediately to prevent a machine runaway Do not allow anyone other than the driver to ride on the machine Do not drive the machine c...

Page 38: ...alled implements and attachments If an interference occurs contact your KUBOTA Dealer 1 Folding the ROPS 1 Loosen the knob bolts 1 to 2 turns 2 Remove both lock pins 1 Lock pin 2 Snap pin 3 Knob bolt 3 Fold the ROPS CAUTION To avoid personal injury Hold the ROPS tightly with both hands and fold the ROPS slowly and carefully 1 ROPS 4 Align the lock pin holes and insert both lock pins and secure the...

Page 39: ...hen moving it Then replace the snap pin 1 Nut STARTING THE MACHINE WARNING To avoid serious injury or death Read and understand the safe operation section Read and understand the safety labels located on the machine To avoid the danger of exhaust fume poisoning do not operate the engine indoors without proper ventilation Never start the engine while standing on the ground Start the engine only fro...

Page 40: ...ays use the seat belt when the ROPS is installed Do not use the seat belt if a foldable ROPS is down or if there is no ROPS Adjust the seat belt for proper fit and connect to the buckle The seat belt is an auto locking retractable type 1 Seat belt 3 Mower lift pedal 1 The mower lift pedal is used to raise and lower the mower deck To raise and lock the mower deck at the carry position push the peda...

Page 41: ...d practice in an unrestricted area at slightly more than idle speed without the mower engaged until becoming proficient in the operation of the machine Do not move motion control levers from the forward to rearward or from the rearward to forward position rapidly Sudden direction changes could cause the loss of control or damage to the machine or property Do not make sharp turns at high speed Fast...

Page 42: ...lease the parking brake 3 Move both motion control levers from the NEUTRAL LOCK position inward to the NEUTRAL position 4 To move your machine see the following figures To stop Move and hold both motion control levers to the NEUTRAL position until the machine comes to a stop Forward For forward travel in a straight line push both motion control levers forward equally and slowly Rearward For rearwa...

Page 43: ...n away IMPORTANT The parking brake is for parking use only If the parking brake is applied when the motion control levers are not in the NEUTRAL LOCK position the engine will stop This feature is to prevent brake and transmission damage during operation 1 Move both motion control levers to the NEUTRAL position to stop the machine 2 Move both motion control levers to the NEUTRAL LOCK position 3 App...

Page 44: ...when the key switch is at the ON or START position Do not connect lights or other devices that draw more than a total of 84 watts to these power points or the battery may discharge very rapidly or the outlet or plug may fail IMPORTANT Do not use the outlet as a cigarette lighter Do not use the outlet or the plug when it is wet Make sure that the outlet cap is closed when the outlet is not used 1 1...

Page 45: ... side HST bypass rod 2 Right side HST bypass rod 2 Pull the right side HST bypass rod from the OPERATING POSITION to the BYPASS POSITION Continue to hold the right side HST bypass rod in the BYPASS POSITION in order to move the machine 1 Left side HST bypass rod 2 Right side HST bypass rod A Operating position B Bypass position H HOLD 3 After moving place both the right side and left side HST bypa...

Page 46: ...ound the obstacle 4 Most lawns must be mowed to keep the grass approximately 50 to 80 mm 2 to 3 in high Best results are obtained by cutting often and not too short For a healthy lawn only 1 3 of the grass plant should be removed in one mowing For example tall grass with the height of 75 mm 3 in can be cut to a minimum of 50 mm 2 in For extremely tall grass set the cutting height at maximum cuttin...

Page 47: ...eight control dial 4 Lower the mower deck by pushing the mower lift pedal again This lowers the mower deck from the TRANSPORT position to the OPERATING position 5 Adjust the anti scalp rollers height as follows for normal operating condition IMPORTANT Never allow the rollers to contact the ground continuously as premature roller wear may develop if set incorrectly Anti scalp rollers must maintain ...

Page 48: ...ne WARNING To avoid serious injury or death Engine components can get extremely hot from operation To prevent severe burns do not touch these areas while the engine is running or immediately after it is turned off Never operate the engine without heat shields or guards 1 Sit on the operator s seat Put on the seat belt Make sure that the parking brake is engaged 2 Start the engine 3 Engage the PTO ...

Page 49: ... check it everyday and inflate as necessary Z411KW Z421KW Tire sizes Recommended inflation pressure Front 13 x 5 6 4PR smooth 170 kPa 1 7 kgf cm2 25 psi Rear 24 x 9 5 14 4PR turf 83 kPa 0 84 kgf cm2 12 psi Z421KWT Tire sizes Recommended inflation pressure Front 13 x 6 5 6 4PR smooth 170 kPa 1 7 kgf cm2 25 psi Rear 24 x 12 14 4PR turf 83 kPa 0 84 kgf cm2 12 psi 1 Ground A INSUFFICIENT B NORMAL C EX...

Page 50: ...he mower deck while lifting the machine Park the machine on a firm and level surface Apply the parking brake Stop the engine and remove the key before removing the front caster wheels 1 Lock nut 2 Wheel bolt 3 Yoke 4 Dust cover 1 Install the replacement wheel and dust covers 2 Install the wheel bolt and the lock nut with nylon sleeve 3 Tighten the nut 4 After installing add grease to the grease fi...

Page 51: ...rrester if equipped Check every 50 hr or 1 year 57 67 9 Fuel filter Check every 100 hr 59 Replace every 200 hr 63 K 10 Battery condition Check every 100 hr 60 11 Throttle cable Adjust every 100 hr 62 12 Choke cable Adjust every 100 hr 62 13 Mower link bushings Greasing every 100 hr 63 14 Spark plug Check every 100 hr 59 Replace every 500 hr 65 15 Engine oil filter Replace every 200 hr 63 16 Engine...

Page 52: ...ance cycle 4 Every 500 hours or every 1 year whichever comes first 5 Replace if any deterioration or damage occurred crack hardening scar or deformation IMPORTANT The jobs indicated by must be done initially Maintenance instructions related to gasoline engine emissions Non warranty maintenance repairs or replacement of the emission control devices and systems should be performed by a qualified rep...

Page 53: ...PERIODIC SERVICE CHART LABEL MAINTENANCE PERIODIC SERVICE CHART LABEL 48 Z400 ...

Page 54: ...87AKI 90 RON Gasoline with up to 10 ethanol ethyl or grain alcohol or up to 15 methyl tertiary butyl ether MTBE by volume is acceptable Do not use unapproved gasoline such as E85 Do not mix oil in gasoline or modify the engine to run on alternate fuels This will damage the engine components and void the engine warranty High altitude This engine may require a high altitude carburetor kit to ensure ...

Page 55: ...p the seat halfway 1 Pull the latch lever on the seat panel rearward 1 Latch lever A PULL 2 Raise the operator s seat to the resting position 1 Operator s seat Lowering WARNING To avoid serious injury or death Do not drop the seat when lowering it Watch your hands Do not place your hands under the seat when lowering it 1 Lower the seat slowly to lock DAILY CHECK To prevent trouble from occurring i...

Page 56: ... minutes or more after the engine has stopped 2 Wipe the dipstick area clean 3 To check the oil level remove the dipstick and wipe it clean Reinsert the dipstick into the tube rest the cap on the tube and do not thread the cap onto the tube Remove the dipstick again Check to see that the oil level is between the 2 notches 4 Add new oil to the prescribed level at the oil port if necessary 1 Engine ...

Page 57: ...ponents Seal the fuel storage container tightly and store it out of sunlight and heat to prevent fuel degradation Condensation in the fuel tank may occur because of various operating or environmental conditions To reduce condensation and to avoid affecting the machine operation fill the fuel tank at the end of daily operations IMPORTANT Do not use old fuel Use of alcohol mixed gasoline Only use ga...

Page 58: ...erfill the tank 5 Checking the tire pressure WARNING To avoid serious injury or death Park the machine on a firm and level surface Apply the parking brake Stop the engine and remove the key before checking the tire pressure Do not attempt to mount a tire on a rim This should be done by a qualified person with the proper equipment Always maintain the correct tire pressure The inflation pressure in ...

Page 59: ...7 Checking movable parts If any of the movable parts such as levers and pedals cannot be smoothly moved because of rust or anything sticky do not attempt to force it into motion In this case remove the rust or the sticky object and apply oil or grease on the relevant spot Otherwise the machine may get damaged EVERY 25 HOURS 1 Cleaning the cylinder and cylinder head fins WARNING To avoid serious in...

Page 60: ...o not wash paper elements Do not oil paper elements or foam elements Do not use pressurized air to clean paper elements or foam elements NOTE Operating the engine with loose or damaged air filter components could allow unfiltered air into the engine causing premature wear and failure Operating in dusty conditions may require more frequent maintenance than above EVERY 50 HOURS 1 Checking the engine...

Page 61: ...OTE If the engine cranks in tests 1 through 4 consult your local KUBOTA Dealer to have the unit checked before operation Test 5 operator on the seat 1 Start the engine 2 Keep the parking brake securely set 3 Set the PTO switch to the DISENGAGE OFF position 4 Grasp the motion control levers and move them inward from the NEUTRAL LOCK position to the NEUTRAL position and then release the levers 5 The...

Page 62: ...ater do not wring Allow the air filter to air dry Do not use high pressure air to clean the filter 4 If the air filter is worn out damaged or too dirty to wash clean replace it with a new one 5 Reinstall the carbon canister air filter NOTE Operating in dusty condition may require more frequent maintenance than in normal conditions 4 Greasing WARNING To avoid serious injury or death Be sure to stop...

Page 63: ...blockage 4 If damage is found install replacement parts before operating 1 Muffler EVERY 100 HOURS 1 Changing the engine oil WARNING To avoid serious injury or death Be sure to stop the engine and remove the key before changing the oil Allow the engine to cool down sufficiently as oil can be hot and may cause burns 1 To change the used oil use the oil drain valve connected to the engine block To d...

Page 64: ...other wear and damage Replace the spark plug if necessary 1 Spark plug both sides 4 Check the spark plug gap with a gap gauge Recommended spark plug NGK BPR4ES A 0 7 to 0 8 mm 0 028 to 0 031 in 5 Reinstall the spark plug into the cylinder head Tightening torque 22 N m 16 lbf ft 4 Checking the fuel filter and fuel lines WARNING To avoid serious injury or death Be sure to stop the engine and remove ...

Page 65: ...o the fuel pump Entrance of dust and dirt causes malfunction of the fuel pump 1 Fuel valve 2 Fuel tank 3 Fuel line 4 Pipe clamp A CLOSE OFF B OPEN 1 Fuel filter 2 Fuel line 3 Pipe clamp 4 Fuel pump 1 Fuel line 2 Pipe clamp 3 Vent hose A Carburetor 1 Vent hose 2 Pipe clamp 3 2 way valve assembled in the fuel tank 1 Vent hose 2 Pipe clamp 3 Carbon canister 5 Checking the battery condition DANGER To ...

Page 66: ...shortens the service life and adds to maintenance costs The original battery is maintenance free but needs some servicing If the battery is weak the engine will be difficult to start and the lights will be dim It is important to check the battery periodically When exchanging an old battery with a new one use a battery of equal specifications as described in the following table Battery type Volts V...

Page 67: ...or the battery terminals 10 mm 10 mm 6 Adjusting the throttle cable WARNING To avoid serious injury or death Park the machine on a firm and level surface Apply the parking brake Stop the engine and remove the key before adjusting the throttle cable 1 Move the throttle lever to the FAST position 1 Throttle lever A FAST B SLOW 2 Make sure the speed control lever 2 contacts the high idle adjustment b...

Page 68: ...g 1 Apply a small amount of multipurpose grease to the following points every 100 hours If you operated the machine in extremely wet and muddy conditions lubricate the bushings more often 1 Front mower link bushing LH RH 2 Rear mower link bushing LH RH EVERY 200 HOURS OR EVERY 1 YEAR Replace every 200 hours or every 1 year whichever comes first 1 Replacing the air cleaner paper element See Cleanin...

Page 69: ...he oil level before placing the engine into service Stop the engine correct any leakage and allow 1 minute for the oil to drain down then recheck the level on the dipstick NOTE To prevent extensive engine wear or damage always maintain the proper oil level in the crankcase Never operate the engine with the oil level below the ADD or L mark or above the FULL or F mark on the dipstick 1 Engine oil f...

Page 70: ... hydrostatic drive applications it is critical to purge it from the system Air creates inefficiency because its compression and expansion rate is higher than the one of the oil approved for use in hydrostatic drive systems These purge procedures should be performed anytime a hydrostatic system has been opened to facilitate maintenance or the oil has been changed The resulting symptoms in hydrostat...

Page 71: ...clutch mounting bolt to 67 75 N m 50 55 lbf ft 7 Reinstall the transaxle belt 8 Reinstall the mower belt EVERY 500 HOURS OR EVERY 1 YEAR 1 Adjusting the electric clutch WARNING To avoid serious injury or death Park the machine on a firm and level surface Apply the parking brake Stop the engine and remove the key before adjusting the electric clutch The electric clutch serves 2 functions in the ope...

Page 72: ...fler and spark arrester if equipped on page 57 3 Checking hydraulic hoses WARNING To avoid serious injury or death Be sure to stop the engine remove the key and relieve the pressure before checking and replacing the hydraulic hoses Allow the transmission case to cool down sufficiently as oil can be hot and may cause burns 1 Check to see that all lines and hose clamps are tight and not damaged 2 If...

Page 73: ...wrong battery connec tion 2 Checking and replacing blades WARNING To avoid serious injury or death Be sure to stop the engine and remove the key Blades may be sharp When you handle blades wear heavy gloves or wrap the end of the blades with a rag NOTE Before checking or replacing the blades wipe grass and mud off the top and inside of the mower Especially clean inside the belt cover otherwise the ...

Page 74: ... to install the cup washer between the blade and bolt head Then tighten the bolt securely 1 Spindle holder 2 Blade 3 Cup washer 4 Lock washer 5 Bolt IMPORTANT Tighten the blade bolts from 103 to 118 N m 76 to 87 lbf ft The blade bolts have right hand threads Turn them counterclockwise to loosen To prolong the service life of the blades reposition them as shown in the following figure periodically ...

Page 75: ...will affect the maneuverability 1 Change the upper side of the damper to the desired hole location Tighten the upper side damper nut 1 Damper 2 Nut A LIGHTER B HEAVIER H1 Hole for lighter setting H2 Hole for heavier setting 2 Loosen the nut on the bottom side of the damper 3 Move the motion control lever to the rearmost position and release the motion control lever 4 After the motion control lever...

Page 76: ... Park the machine on a firm and level surface b Stop the engine c Loosen the 2 front bolts of the faster side d Move the speed adjust plate slightly rearward e Tighten the 2 front bolts securely f Operate the machine and check the adjustment Readjust as necessary Tightening torque 23 6 to 27 4 N m 2 4 to 2 8 kgf m 17 4 to 20 2 lbf ft 3 Maximum speed forward Consult your local KUBOTA Dealer for thi...

Page 77: ...p rollers be kept off the ground to minimize scuffing 1 Check the machine tire pressure Inflate tires to the correct pressure See TIRES AND WHEELS on page 44 2 Start the engine 3 Raise up the mower deck to the transport position the top end of the lift 4 Turn the cutting height control dial to adjust the height 5 Lower the mower deck 6 Adjust the height of the front side anti scalp roller to 1 of ...

Page 78: ...od blocks under each side of the mower deck Anti scalp rollers must not rest on the wood block 4 Lower the mower deck 5 Position the mower blade in the side to side position 6 Loosen the jam nuts of the right side of the machine 7 Adjust the cutting height fine tuning bolts to set 76 mm 3 in blade height Front and rear side bolts must be adjusted 8 Jam the nuts 9 Adjust the left side equally 10 Ch...

Page 79: ...el front to rear 1 Raise up the mower deck to the transport position the top end 2 Turn the cutting height set dial to the 3 in cutting height position 3 Place 51 mm 2 in heigh wood blocks under each side of the mower deck Anti scalp rollers must not rest on the wood block 4 Lower the mower deck 5 Loosen the jam nuts of the front side of the machine 6 Adjust the cutting height fine tuning bolts to...

Page 80: ... 35 42 47 5 57 0 4 84 5 82 45 54 61 0 73 2 6 22 7 47 M10 lbf ft N m kgf m 35 5 41 2 48 1 55 8 4 9 5 7 44 9 52 1 60 8 70 5 6 2 7 2 1 2 lbf ft N m kgf m 80 96 108 5 130 2 11 07 13 29 110 132 149 2 179 0 15 22 18 27 M12 lbf ft N m kgf m 57 2 66 5 77 5 90 1 7 9 9 2 76 0 86 8 103 117 10 5 12 0 9 16 lbf ft N m kgf m 110 132 149 2 179 0 15 22 18 27 160 192 217 0 260 4 22 14 26 57 M14 lbf ft N m kgf m 91 ...

Page 81: ... 4 41 2 38 3 2 9 48 1 55 9 52 0 3 9 4 9 5 7 5 3 0 4 M12 17 or 19 46 3 53 5 49 9 3 6 62 8 72 6 67 7 4 9 6 4 7 4 6 9 0 5 57 1 66 5 61 8 4 7 77 6 90 2 83 9 6 3 8 0 9 2 8 6 0 6 M14 19 or 22 79 6 92 6 86 1 6 5 107 9 125 5 116 7 8 8 11 0 12 8 11 9 0 9 91 1 108 5 99 8 8 7 123 6 147 0 135 3 11 7 12 6 15 0 13 8 1 2 NOTE Figure 7 on the top of the bolt indicates that the bolt is made of special material Bef...

Page 82: ...nce a month in the hot season and once every 2 months in the cold season 7 Drain the fuel tank fuel lines and carburetor or use a fuel stabilizer to prevent deterioration of the gasoline If you choose to use a fuel stabilizer follow the manufacturers recommendations and add the correct amount for the capacity of the fuel system Fill the fuel tank with clean fresh gasoline Run the engine for 2 to 3...

Page 83: ...Spark plug damaged Adjust the spark plug gap or replace the spark plug Check the spark plug wire connection Fuse blown Replace the fuse The engine oil viscosity is wrong Use oils of different viscosities depending on the ambient temperature The battery becomes weak and the engine does not turn over quick enough Clean battery cables and terminals Charge the battery In cold weather always remove the...

Page 84: ... oil Reduce to the specified oil level Piston ring worn or stuck See your Kubota dealer Engine overheats Engine overloaded Lower speed or reduce load Engine oil insufficient Fill engine oil The engine air intake screen and cooling fins are dirty Clean the air intake screen and cooling fins Air cleaner element plugged Clean or replace the air cleaner element Engine speed too low Operate at FAST spe...

Page 85: ...and heated up Poor terminal con nection Clean the terminal and tighten securely Keep the terminal clean and tight Apply grease and treat with anti cor rosives The battery electrolyte level drops rapid ly There is a crack or pin holes in the elec trolytic cells Replace the battery Charging system trouble Contact your local KUBOTA Dealer If you have any questions contact your local KUBOTA dealer MAC...

Page 86: ...ck Uneven cut Mower deck not level Level the mower deck Ground speed too fast Slow down Blades dull Have blades sharpened Blades worn or damaged Replace the blades Low tire inflation Add air to correct pressure Anti scalp rollers not adjusted correctly Adjust the anti scalp rollers Wheels pressure not adjusted correctly Set both tire pressure to the correct pressure See TIRES on page 44 Blades sca...

Page 87: ...hrottle check and reset the engine rpm Ground speed too fast Slow down Debris wrapped around mower spindles Clean the mower Front of deck too low Adjust the mower deck See MOWER DECK LEVEL on page 72 If you have any questions contact your local KUBOTA dealer TROUBLESHOOTING 82 Z400 ...

Page 88: ...intake screen 52 checking the dial cam rotation strength 54 checking the engine oil level 51 checking the tire pressure 44 53 checking the tire pressure warning information 53 checking the transaxle fluid level 53 cleaning the air intake screen 52 refueling 51 daily check list 50 E electric clutch adjusting 66 engine jump starting 30 operating warning information 27 starting 27 starting in cold we...

Page 89: ...mation 70 adjusting HST neutral 70 adjusting maximum speed forward 71 adjusting the operating strength 70 aligning 71 alignment 71 checking the alignment 71 operating position 37 stop position 36 mower adjusting 25 operating 43 troubleshooting 81 type 23 mower belt replacing 69 mower deck dismounting 25 front to rear leveling 73 mounting 24 side to side leveling 72 mower lift pedal 35 adjusting 72...

Page 90: ...equipped checking 57 67 spark plug checking 59 replacing 65 step opening 50 switches 22 T throttle cable adjusting 62 throttle lever 35 operating 29 torque tightening chart 76 transaxle fluid changing 65 transaxle oil filter cartridge replacing 64 transmission oil warming up in the low temperature range 30 U utility box accessory 39 V valve seating surface lapping 64 W warranty 18 wheels 44 Z400 8...