Jacobsen LF550-H-T4F Safety, Operation And Maintenance Manual Download Page 85

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QUALITY OF CUT 12

12.10 MISMATCHED CUTTING UNITS ______________________________________________

NOTE: Arrow indicates direction of travel.

Mismatched cutting units is a pattern of different cutting
heights, that gives the grass a stepped cut appearance.
This appearance is normally because of a mismatched
HOC (height-of-cut) adjustment from one cutting unit to
another unit.

Probable Cause

Remedy

HOC is different from one cutting unit to another unit.

Check and adjust the HOC on cutting units to same
height.

Difference in mower ride height side to side.

Check and adjust the tire inflation pressure.

Summary of Contents for LF550-H-T4F

Page 1: ... Gang 2WD 68016 LF550 T4F Kubota D1803 CR E4B 5 Gang 4WD 68017 LF570 T4F Kubota D1803 CR E4B 5 Gang 2WD 68018 LF570 T4F Kubota D1803 CR E4B 5 Gang 4WD WARNING WARNING If incorrectly used this machine can cause severe injury Those who use and maintain this machine should be trained in its proper use warned of its dangers and should read the entire manual before attempting to set up operate adjust o...

Page 2: ...System 52 9 8 Battery 53 9 9 Charge the battery 54 9 10 Engine Exhaust 54 9 11 Diesel Particulate Filter 55 9 12 Hydraulic Hoses 58 9 13 Hydraulic Fluid 59 9 14 Hydraulic Filter 59 9 15 Tires 59 9 16 Wheel Mounting Procedure 60 9 17 Radiator 60 9 18 Folding ROPS 61 9 19 To Backlap the Reels 62 9 20 Electrical System 63 9 21 Care and Cleaning 64 9 22 Mower Storage 65 Adjustments 10 1 General Precau...

Page 3: ...with the mower You must use the mower to cut the grass and not for any other purpose Compliance with the conditions or operation service and repair specified by the manufacturer are understood to be part of the correct use ALL operators MUST read through this manual and understand the Safety Instructions controls lubrication and maintenance procedures Make sure that you obey all safety and road tr...

Page 4: ...er Label shows the engine group and serial number The engine serial number is also found on the engine block 2 3 SERIAL NUMBERS ________________________________________________________ Record the mower and engine numbers shown below Mower Number _________________________ Engine Number __________________________ 11524WILMAR BLVD CHARLOTTE NC 28273 kg kW 1 800 848 1636 US PRODUCT OF U S A A Textron ...

Page 5: ...se all of the necessary lifting equipment Use the correct tools and Personal Protective Equipment PPE and take instruction from the technical manuals applicable to the mower Remove and keep correctly 1 Batteries 2 Fuel 3 Engine coolant 4 Oils Disassemble the structure of the mower and refer to the technical manuals Give attention to parts that have mechanical pressure or tension applied to the par...

Page 6: ... not disconnect or prevent the operation of any switch c Never operate equipment that is not in correct order or without decals guards shields deflectors or other protective devices fastened d Inspect the mower before you operate the mower Check the tire pressure engine oil level the radiator coolant level and the air cleaner indicator Fuel is flammable Use caution when you add the fuel to the mow...

Page 7: ...ble g When you drive in the reverse direction look behind you and down to make sure the path is clear Do not operate the cutting units when you drive in the reverse direction h Use caution when you go near corners trees or other objects that can prevent a clear view i Equipment must meet the current regulations to be driven on the public roads j Before you move across or operate on the paths or ro...

Page 8: ...ainers inside a vehicle or on a truck or trailer with a plastic liner Always put the fuel container on the ground away from your vehicle before you fill the container e Refuel the mower before you start the engine When the engine is in operation or while the engine is hot never remove the fuel cap or add fuel to the mower f Refuel outdoors only and do not smoke when you add fuel Extinguish all typ...

Page 9: ...can have enough force to enter your skin If hydraulic fluid has entered your skin a doctor must remove the hydraulic fluid surgically within a few hours or gangrene can occur o When you service the hydraulic system make sure the hydraulic fittings tubes and hoses are tightened to the correct torque Make sure the hydraulic system is in good condition before you start the engine p Keep the mower and...

Page 10: ...d Jacobsen Dealer Your Dealer knows the current methods to service this equipment WARNING The Interlock System on this mower prevents the operation of the mower unless a The parking brake switch is in the ON position b The PTO switch is in the OFF position and c the traction pedal is in the Neutral position The system will stop the engine if the operator leaves the seat without a The parking brake...

Page 11: ... 2 hp 37 4 kW 2700 rpm Torque 85 4 ft Lb 115 8 Nm 1600 rpm 117 9 ft Lb 159 8 Nm 1600 rpm Maximum Speed 2950 50 rpm No Load 2950 50 rpm No Load Low Idle 1300 25 rpm No Load 1000 50 rpm No Load Rotation Counter clockwise viewed at flywheel Counter clockwise viewed at flywheel Fuel 2 ultra low sulfur Diesel fuel 2 ultra low sulfur Diesel fuel Injection Pump Bosch MD type mini pump Bosch MD type mini ...

Page 12: ...9 2 cm L Maximum Height Canopy 93 inch 236 2 cm Weight of unit hydraulic and fuel tanks filled reels lifted 68011 3239 lb 1469 kg 68012 3362 lb 1525 kg 68013 3439 lb 1560 kg 68014 3578 lb 1623 kg 68015 3170 lb 1438 kg 68016 3270 lb 1483 kg 68017 3400 lb 1542 kg 68018 3500 lb 1586 kg Weight of unit hydraulic tank full fuel tank empty reels lifted 68011 3117 lb 1414 kg 68012 3240 lb 1470 kg 68013 33...

Page 13: ...SPECIFICATIONS 4 12 K J C G E L A B H F D ...

Page 14: ...tors 4WD Traction Drive SureTrac 4WD parallel cross series system in the forward direction 2WD in the reverse direction Variable displacement hydraulic pump to 17 1 in3 280 cc front wheel motors and 11 9 in3 195 cc rear wheel motors LF550 Cutting Unit Drive 0 72 in3 11 8 cc hydraulic motors connected to the cutting unit LF570 Cutting Unit Drive 1 01 in3 16 5 cc hydraulic motors connected to the cu...

Page 15: ...the steering mechanism The cutting device was in rotation with the mower driven in a straight line at 6 Km hr on a level and cut lawn The Machinery Safety Directive 2006 42 EC By compliance to Whole Body EN1032 2003 Information Supplied for Physical Agents Directive 2002 44 EC By reference to Whole Body Standards BS EN ISO 2631 1 1997 LF550 H LF570 H LF550 LF570 Hand Arm Acceleration Level 68011 6...

Page 16: ...F CC CD are alternative fluids Grease Texaco Starplex 2EP Moly NLGI Grade 2 EP Lithium Complex Grease containing Molybdenum Disulfide or equivalent LF550 LF570 Blade Length 22 in 55 9 cm Number of cutting units 5 LF550 Height of cut 3 8 to 3 4 in 0 95 to 1 9 cm LF570 Height of cut 3 8 to 1 1 8 in 0 95 to 2 9 cm Height of cut adjustment Lift or lower front roller with adjustment knobs on the ends o...

Page 17: ... or 3006263 LF570 4 9 4 REAR ROLLERS __________________________________________________________ Ø 2 in 5 1 cm 22 in 55 9 cm Rear Roller 1004990 Ø 2 in 5 1 cm 22 in 55 9 cm Rear Roller 1000770 Ø 2 1 2 in 6 3 cm 20 in 50 8 cm Rear Roller 5003687 Ø 2 1 2 in 6 3 cm 22 in 55 9 cm Rear Roller 1003728 Ø 2 1 2 in 6 3 cm 24 in 61 0 cm Rear Roller 1002446 4 9 5 LF550 REEL ACCESSORIES________________________...

Page 18: ...LL CAGE _____________________________________________________________ Factory Installed 4265200 Dealer Installed 4265199 4 9 11 LED LIGHT KIT ___________________________________________________________ LED Light Kit One Light 4238642 4 10 SUPPORT LITERATURE ____________________________________________________ Contact your Jacobsen Dealer for a complete listing of literature available for your mowe...

Page 19: ...Двигун Kubota V2403 CR E4B Diesel Net Installed Power Нетна инсталирана мощност Čistý instalovaný výkon Installeret nettoeffekt Netto geïnstalleerd vermogen Installeeritud netovõimsus Asennettu nettoteho Puissance nominale nette Installierte Nettoleistung Καθαρή εγκατεστημένη ισχύς Nettó beépített teljesítmény Potenza netta installata Paredzētā tīkla jauda Grynoji galia Wisa tal Qtugħ Moc zainstal...

Page 20: ...i Hladina hluku pôsobiaca na sluch operátora Raven hrupa pri ušesu upravljavca Nivel sonoro en el oído del operador Ljudnivå vid förarens öra Hávaðastig fyrir stjórnanda Støynivå ved operatørens øre 操作员耳旁噪声级 Hljóðstyrkur fyrir stjórnanda オペレータが感じる騒音レベル 사용자 청각 소음 레벨 Operatör Kulak Gürültü Düzeyi Рівень шуму що впливає на оператора 87dB a 0 62 Leq 2006 42 EC Harmonised standards used Използвани харм...

Page 21: ...com poderes para emitir a declaração em nome do fabricante que possui a documentação técnica que está autorizada a compilar o processo técnico e que está estabelecida na Comunidade Semnătura persoanei împuternicite să elaboreze declaraţia în numele producătorului care deţine documentaţia tehnică este autorizată să compileze dosarul tehnic şi este stabilită în Comunitate Podpis osoby poverenej vyst...

Page 22: ...y acid To prevent injury while you attach the jumper cables to the battery 1 Connect the positive battery terminal of the charged battery to positive battery terminal of drained battery 2 Connect the negative battery terminal of the charged battery to frame of vehicle with drained battery WARNING The engine coolant is under pressure To prevent injury do not remove the radiator cap on a hot radiato...

Page 23: ... use the mower Keep the shields in position and hardware fastened Keep your hands feet and clothing away from moving parts Before you clean adjust or repair this equipment disengage all drives engage the parking brake and stop the engine Never carry passengers When mower is in operation keep persons and animals away Do not use on the slopes greater than 18 4 5002952 4181865 REV B ...

Page 24: ...ution to prevent your fingers broken or pinched between moving and rigid parts of the ROPS Warning Read the manual for instructions to backlap the cutting units 4181861 NOTICE Do NOT fold this ROPS if a canopy is attached Damage to the mower hood could result WARNING This structure s proctective capability may be impaired by structural damage overturn or alteration If any of these conditions occur...

Page 25: ...ECALS 5 24 5 2 INSTRUCTION DECALS ____________________________________________________ Traction pedal operation Backlap Decal Rotate knob to set backlap speed Tow valve operation 3008521 3008683 3008682 ...

Page 26: ...6 CONTROLS 25 6Controls 6 1 OPERATOR COMPARTMENT________________________________________________ 6 2 6 3 6 4 6 5 6 7 6 8 6 6 ...

Page 27: ...CONTROLS 6 26 6 2 ARMREST ________________________________________________________________ JACOBSEN LDU A MCU A 6 2 1 6 2 2 6 2 3 6 2 4 6 2 5 6 2 6 6 2 7 6 2 8 6 2 9 6 3 ...

Page 28: ...s disabled with the parking brake engaged To disengage parking brake press the rear part the switch The parking brake light will turn off NOTE Engine will not start with the parking brake switch in the OFF position 6 2 3 CRUISE CONTROL SWITCH_________________________________________________ The cruise control switch controls the operation of the cruise control system To engage the cruise control p...

Page 29: ...he joystick is set to automatic mode When the cutting units are lowered the reels will start to turn when forward travel starts When the cutting units are lifted or forward movement stops the reels will stop 6 2 5 HORN SWITCH ____________________________________________________________ Press the front of the switch to use the horn 6 2 6 LIGHT SWITCH_________________________________________________...

Page 30: ...ion is started again push and release the joystick to restart the reels 6 2 8 ALARM __________________________________________________________________ The alarm located below the armrest indicates the condition of the mower or to get the attention of the operator and persons near the area of operation These conditions will cause the alarm to sound The temperature of engine coolant is more than 230...

Page 31: ...erature light indicates that coolant temperature is more than 230 F 110 C Immediately stop the engine Remove the tree leaves grass clippings and other objects that can decrease air flow through the rear screen and the radiator If the engine continues to run hot return mower to the service area The red engine oil pressure light indicates engine oil pressure is less than 7 psi 0 48 BAR Immediately s...

Page 32: ...ault light indicates the controller system has sensed a fault See fault message shown on the LDU When a Parked Regen cycle is necessary the yellow Regen Request light will flash During a Parked Regen cycle the Regen Request light will illuminate The yellow high exhaust temperature light indicates that an Active or Parked Regen cycle is active and a high exhaust temperature is sensed WARNING The hy...

Page 33: ...ow Battery Voltage screen is shown on the LDU If the screen does not turn off when the engine starts or the battery light is illuminated check the alternator and the battery When the hydraulic fluid level in tank is low the Low Hydraulic Fluid Level screen is shown on the LDU The horn will activate the reels will stop and lift to full up position and the hydraulic fluid level light illuminates Vis...

Page 34: ... key switch is turned to the OFF position When the backlap switch is in the ON position the BACKLAP MODE screen is shown on the LDU See Section 9 19 for the mower operation in backlap mode When the optional cruise control kit is installed and the cruise control switch is in the ON position the CRUISE ACTIVE screen is shown on the LDU When the TIER 4 SERVICE MESSAGE screen is shown on the LDU a Par...

Page 35: ...e position of the steering wheel 6 6 SEAT CONTROLS _________________________________________________________ The seat has two controls to adjust for the operator Lift the seat position lever and move the seat backward or forward Release the lever to set the adjustment Make sure the seat is locked in position before you operate the mower Rotate the knob to the correct position for the weight of the...

Page 36: ...osition To backlap press the top of the switch to the ON position When you backlap the parking brake switch must be in the ON position and the traction pedal in the Neutral position The BACKLAP MODE screen is shown on the LDU 6 8 THROTTLE LEVER ________________________________________________________ The throttle lever controls the engine speed Always operate the mower at full throttle during norm...

Page 37: ...the fuel supply radiator coolant level crankcase oil level and air cleaner indicator When the engine is cold all fluids must be at the full level mark Check the radiator fins for dirt or grass Clean with compressed air as required before you operate the mower Make sure all cutting units are adjusted to the same cutting height Check all tires for the correct pressure Test the interlock system CAUTI...

Page 38: ...e PTO switch is in the OFF down position The engine will start TEST 2 The engine must not start if the PTO switch is in the ON position TEST 3 The engine must not start if the parking brake switch is in the OFF position TEST 4 The engine must not start if the traction pedal is out of the NEUTRAL position TEST 5 Start the engine with the normal procedure Turn on the PTO switch and lift your weight ...

Page 39: ...owing grass always turn off the PTO switch 10 Before you move across or operate on the paths or roads turn off the PTO switch lift the cutting units and travel at decreased speed Look for traffic 11 When you hit an object or mower starts to cause vibration that is not normal inspect the mower for damage and make repairs 12 Travel at decreased speed and be careful when you operate on the slopes or ...

Page 40: ...ine starts all of the warning lights will turn off Allow the engine to become warm before you operate the engine at full throttle 7 5 TO STOP THE ENGINE _____________________________________________________ To stop and park the mower in normal conditions 1 Turn the PTO switch to the OFF position Drive the mower to a flat and level area to park the mower 2 Remove your foot from the traction pedal 3...

Page 41: ...tic mode Always mow with the engine at full throttle 2 Push and release the joystick The cutting units will lower to the ground When the cutting units are lowered the reels will start turning 3 To lift the cutting units pull and release the joystick with the mower moving forward The cutting units will lift to the crosscut position and the reels will stop To lift the cutting units to the transport ...

Page 42: ...und This procedure makes sure the mower does not turn upside down 6 Correct tire pressure is necessary for maximum traction Front 12 psi 0 83 BAR Rear 12 psi 0 83 BAR WARNING When you operate on the slopes lock the ROPS frame in the vertical position and the seat belt fastened Do not operate on the slopes with the ROPS in the folded position To make sure that the mower does not turn over the safes...

Page 43: ...s with 1 Yard Level A Millimeters with 1 Meter Level A Slope in Degrees Slope Grade 3 4 8 8 3 100 5 7 10 0 150 8 5 15 6 9 5 16 7 200 11 3 20 0 7 5 11 8 20 8 225 12 7 22 5 9 250 14 25 0 275 15 4 27 5 10 15 5 27 8 300 16 7 30 0 11 17 0 30 6 325 18 0 32 5 12 18 4 33 3 350 19 3 35 0 13 19 9 36 1 375 20 6 37 5 14 21 3 38 9 400 21 8 40 0 15 22 6 41 7 425 23 0 42 5 16 24 44 4 475 25 4 47 5 18 500 26 6 50...

Page 44: ... mower be moved without the engine started and to prevent possible damage to hydraulic components The bypass valve is found on the side of the traction pump below the operator seat To open the valve use a wrench or put a small screwdriver into the hole in the valve stem Turn the valve two full turns 720 Remove the floorboard panel Rotate the brake release lever to the released position To release ...

Page 45: ...uel system Lubricate all reel grease fittings See Section 9 5 See Section 10 2 See Section 9 7 See Section 8 2 Each month 250 Hours Inspect hydraulic hoses and tubes Check engine exhaust system Check steering system Check electrical wiring Lubricate reel motor coupler splines See Section 9 12 See Section 9 10 See Section 10 3 See Section 9 20 Each two months 400 Hours Replace engine oil and filter...

Page 46: ...ith Filter V2403 7 5 Quart 7 1 liter 10W 30 API Classification CJ 4 Engine Oil with Filter D1803 5 5 Quart 5 2 liter 10W 30 API Classification CJ 4 Hydraulic Oil with Filter 14 U S Gallon 53 liter GreensCare 68 Standard GreensCare 68 Plus Optional 10W 30 Optional Radiator Coolant 8 Quart 7 6 liter 50 50 Ethylene Glycol Based Anti Freeze Water Fuel 17 U S Gallon 64 4 liter 2 Ultra Low Sulfur Diesel...

Page 47: ...ntenance Mode Calibrate pedal Set max mow speed Set travel speed Enable Disable Cruise Control Traction Mode On Off Switch Status Regen Request English Metric Units Exit Maintenance Mode To enter Maintenance Mode turn the ignition switch to the RUN position Press the LDU button until the ENTER PIN screen is shown on the LDU Use the joystick to increase or decrease and the LDU button to enter the d...

Page 48: ...aximum mow speed Press the LDU button to set the speed The maximum mow speed is adjustable between 3 and 11 mph 4 8 and 12 8 km hr in 0 2 mph 0 3 km hr steps The maximum mow speed is set at 7 mph 11 3 km hr at the factory 9 2 3 TRAVEL SPEED To set the maximum travel speed press forward or backward on the joystick until the SET TRAVEL SPEED screen is shown on the LDU Press the LDU button to enter t...

Page 49: ...__________________________________________________ Shows the current switch settings to identify a possible problem with the switch A status of 0 indicates the switch is in the OFF position A status of 1 indicates the switch is in the ON position Check the wires and operation of any switch that does not show the correct status The Switches are broken up into three sets of numbers with a gap betwee...

Page 50: ...ns you will make sure of the maximum service life of the engine The replacement engine manuals are available from the engine manufacturer The operation and maintenance during the first 50 hours of a new engine can make a difference to the performance and life of the engine During the first 50 hours of operation Jacobsen recommends the following Allow the engine to reach a temperature of at least 1...

Page 51: ...nd clean with a cloth c Drain the engine oil into a container d Replace the drain plug and fill the engine with the correct quantity and grade of oil through the filler Change Engine Oil Filter a Remove the oil filter b Let the engine oil flow into a container c Clean the filter area on the remote filter head d Apply a thin layer of oil to the gasket on new filter Install the oil filter e Only use...

Page 52: ... fit inside the fuel filler neck Never use containers that are not approved to keep or transfer fuel Do not use a nozzle lock open device If fuel spills on your clothing change your clothing immediately Fill the fuel tank to less than 1 inch 2 5 cm below the filler neck Use clean No 2 ultra low sulfur Diesel fuel with a minimum Cetane Rating of 45 Use of Diesel fuel additives are not recommended I...

Page 53: ...lter cartridge to the filter base Tighten the cartridge with your hand e Bleed air from the fuel system How To Bleed The Air From The Fuel System After water is drained from the fuel system fuel filter cartridge is replaced or the fuel hoses are replaced bleed the air from the fuel system a Open the air vent at the top of the water separator b Press and release the hand pump until air bubbles at s...

Page 54: ... jump start the mower check the condition of the drained battery b Connect the positive battery terminal of the charged battery to positive battery terminal of the drained battery c Connect the negative battery terminal of the charged battery to frame of vehicle with the drained battery d When the cables are connected start the engine on the vehicle with the good battery then start the mower CAUTI...

Page 55: ...on and the Engine Manual for information about the DPF system If you sense a change in the color or sound of the exhaust stop the engine immediately Identify the problem and have the system repaired Torque all exhaust manifold hardware equally Tighten or replace the exhaust clamps WARNING Charge the battery in an area with good airflow The battery can release hydrogen gas that is explosive To prev...

Page 56: ...LDU until the fuel tank is filled Active Regen State When the level of particle material reach a certain point the engine will enter Active Regen state Operation of the mower is not changed The exhaust temperature can be more than 1150 F 625 C during Active Regen The high exhaust temperatures during Active Regen will illuminate the High Exhaust Temperature light WARNING During Active or Parked Reg...

Page 57: ...in 5 seconds the Regen request will be canceled When the REGEN REQUEST screen is shown on the LDU press the LDU button to start the Parked Regen Cycle During the Parked Regen cycle the PARKED REGEN IN PROCESS screen is shown on the LDU During the Parked Regen the Regen Request light will illuminate When high exhaust temperatures are sensed during Parked Regen the High Exhaust Temperature light wil...

Page 58: ...e is available If the engine is operated at Level 2 without a Regen for approximately 1 to 1 1 2 hours the engine controller will change to Level 3 Level 3 Regen Request light will flash and the check engine light is illuminated The engine power output is decreased and Active Regen is disabled When the mower is parked and the parking brake is engaged the Parked Regen state is available If the engi...

Page 59: ...hydraulic component tag or mark the location of each hose then clean the area around the fittings To prevent dirt to enter the hydraulic system when you disconnect the component be prepared to assemble plugs or caps to the ends of hoses and open ports Clean any hydraulic fluid that spills Make sure O rings are clean and hose fittings are correctly installed before you tighten Prevent the hose to t...

Page 60: ... is greater than 16 to 20 psi 1 1 to 1 4 BAR the hydraulic oil filter warning light on the LDU will illuminate To make sure continued protection of the hydraulic system replace filter as soon as possible after light illuminates When you replace the filter a Fill the new filter with hydraulic fluid and lubricate the filter O ring with hydraulic fluid before you assemble the new filter Tighten the f...

Page 61: ...air passages clean Use compressed air maximum of 30 psi 2 BAR to clean the fins Open the panel under the radiator to allow dirt and other particles to fall from the frame Check and tighten the engine fan belt every 100 hours and replace the belt every 500 hours Replace the clamps and hoses every two years Have your Jacobsen Dealer check the cooling system if you need to add coolant more than one t...

Page 62: ...folded position Folding the ROPS a Remove the hair pin and ROPS pin from both sides of the ROPS b Fold the ROPS toward the mower hood c Assemble the ROPS pin and hair pin to lock the ROPS in the folded position Never wear the seat belt with the ROPS in the folded position CAUTION Keep the ROPS hardware correctly fastened Do not do welding operations drill change or bend the ROPS Replace damaged RO...

Page 63: ...he reel speed Repeat for both valves 6 After the desired speed is set set the backlap switch to the OFF position and stop engine Tighten the locknut to set the adjustment Start engine and set backlap switch to the ON position to backlap 7 Apply lapping compound with a long handle brush along the full length of the reel 8 When the reels are honed carefully and completely wash off the remaining mixt...

Page 64: ...ts CAUTION Always turn the ignition switch to the off position and remove the negative BLACK battery cable before you inspect or service the electrical system NOTICE For factory help with controller problems give the hardware revision and software version found on the controller The replacement controllers with higher revision levels will be compatible 2 1 RAISE SOL 2 2 MOW SOL 2 3 BACKLAP SP 2 4 ...

Page 65: ...aners To keep the original high polish of the fiberglass parts wax with a good grade of one step cleaner wax Repair damaged metal surfaces and use Jacobsen touch up paint Apply wax to the equipment for maximum paint protection NOTICE Do not wash any part of the mower that is hot Do not use high pressure spray or steam Use the cold water and automotive cleaners NOTICE To use salt water or drain wat...

Page 66: ...lter Install the drain plug and fill the engine with oil Torque the drain plugs to 22 ft Lb 30 Nm Clean the outside surface of the engine Paint bare metal or apply a thin layer of rust preventative oil Add a fuel conditioner or biocide to prevent the fuel to become a gel or bacteria in the fuel See your fuel supplier for instructions Drain water from water separator Cutting Units Completely clean ...

Page 67: ...s fuel anti freeze follow your local state or federal recommended procedures 10 2 ENGINE FAN BELT ________________________________________________________ Inspect and adjust a new belt after the first ten hours of operation Check the belt every 100 hours after the first 10 hours Adjust the alternator position so that the belt moves 1 4 to 5 16 inch 0 6 to 0 8 cm with a 20 lb 89 N push at the cente...

Page 68: ...The switch is installed on the mower frame behind the left side lift arm If the reels continue to rotate when lifted or do not rotate when lowered inspect the switch Adjust or replace the switch as required To adjust switch 1 Park the mower on a flat and level surface 2 Remove the cutting unit from the lift arm 3 Turn the ignition switch to the RUN position to activate the controller Do not run th...

Page 69: ... 4 When you adjust the height check the wiring harness connector for a tight connection to the mower harness 10 6 ARMREST PIVOT __________________________________________________________ 1 Adjust the plunger as required so that the plunger button stops the armrest at both ends of armrest pivot slots The plunger body must not contact the armrest pivot Do not use the plunger to increase the pivot te...

Page 70: ...wider gap to prevent temperature increase and damage to the reel and bedknife b High quality grass with a good moisture amount will need a closer gap near zero 10 8 BEDKNIFE ADJUSTMENT __________________________________________________ 1 Read Section 10 7 before you adjust the reel 2 Start the adjustment at the leading end of the reel followed by the trailing end The leading end of the reel blades...

Page 71: ...d 10 10DOWN PRESSURE_________________________________________________________ Each reel is has a down pressure spring Down pressure improves the cutting quality by contact between the reel and ground Check and adjust the down pressure any time the HOC is changed or to improve the cut for the best performance 1 Lift the reels to the transport position Put the adjustment pin in 4th hole from ball jo...

Page 72: ...he motor into bearing housing Install two motor clips into pins to lock the motor in position The loops on the motor clips must be toward the motor 3 Lift the reels and install the down pressure adjustment pins If the HOC has not changed set pins in same position when the reels were removed See Section 10 10 Removing Cutting Units 1 Lower the reels to the ground and remove the down pressure adjust...

Page 73: ...hen you adjust the nut check the reel to bedknife adjustment 10 14GRINDING THE BEDKNIFE __________________________________________________ Lower the bedknife out of the reel for grinding without completely removing the bedknife assembly 1 Remove the cotter pin slotted nut Belleville washer shim washer If needed and half trunnion from both ends of the reel 6 Press down on the adjuster end of the ro...

Page 74: ...9 1 4 20 in lb Nm 75 8 4 100 11 3 107 12 1 143 16 1 9 16 18 ft lb Nm 92 124 122 165 129 174 172 233 1 4 28 in lb Nm 85 9 6 115 13 0 120 13 5 163 18 4 5 8 11 ft lb Nm 113 153 151 204 159 215 211 286 5 16 18 in lb Nm 157 17 7 210 23 7 220 24 8 305 34 4 5 8 18 ft lb Nm 128 173 170 230 180 244 240 325 5 16 24 in lb Nm 173 19 5 230 26 0 245 27 6 325 36 7 3 4 10 ft lb Nm 200 271 266 360 282 382 376 509 ...

Page 75: ...clean 2 Air cleaner dirty 3 Injectors fuel pump 4 Engine Problem 1 Fill with clean fuel Change fuel filter Drain water from water separator bleed fuel system 2 Inspect and replace air filter 3 See the Engine Manual 4 See the Engine Manual Engine Stops 1 Fuel tank empty 2 The interlocks not set before you leave the seat 1 Fill with clean fuel and bleed the fuel system 2 Turn the parking brake ON an...

Page 76: ... For example to send the output to start the engine all of these conditions must be true The PTO switch is in the OFF position LED OFF The parking brake switch is in the on position LED ON The traction pedal is in the Neutral Position LED ON The ignition switch is turned to the START position LED ON When you use the controller to find a solution to a mower problem always make sure that the ignitio...

Page 77: ..._______ NOTE Arrow indicates direction of travel Washboarding is a repeated pattern of different cutting heights that causes an appearance that is like a wave In most cases the wave tip to tip distance is approximately 6 8 in 15 20 cm A change in the color from light to dark is also seen This cause of this condition can be a movement from side to side in the cutting units s This condition is found...

Page 78: ...ts that causes an appearance that is like a wave In most cases the wave tip to tip distance is 2 in 5 cm or less Probable Cause Remedy The cut ground speed is higher than normal Reduce the cut ground speed The HOC height of cut settings is too low for the turf conditions Check HOC adjustment of cutting units The cutting reel diameter is worn Check the cutting reel diameter and replace if necessary...

Page 79: ...of cut settings are different from one side of a cutting unit to the other side or from one cutting unit to another unit Check HOC adjustment of cutting units Worn front roller bearings Check and replace the bearings in the roller The reel to bedknife adjustment is different from one side of a cutting unit to the other side or from one cutting unit to another unit Check the reel to bedknife adjust...

Page 80: ...lping Probable Cause Remedy HOC height of cut settings are lower than normal Check and adjust the HOC settings The reel to bedknife adjustment is different from one side of a cutting unit to the other side or from one cutting unit to another unit Check the reel to bedknife adjustment Turf is not level and the mower can not follow the turf Change the direction of cut Grass is higher than the cuttin...

Page 81: ...tting blade s are not sharp Sharpen the blade s The bedknife is not adjusted correctly Check the reel to bedknife adjustment Cut ground speed is higher than normal Reduce the cut ground speed The grass is higher than the level at which the mower can cut correctly Cut the grass more frequently Cut in the same direction Change the direction of cut more frequently Damage to the reel or bedknife Grind...

Page 82: ...el as needed Loose or missing bedknife screws Check and tighten the loose bedknife screws Replace any missing screws The mower turns at a rate that is faster than the mower can turn and cut correctly The cutting units do not overlap around turns or on side hills Turn at a speed that will allow the cutting units to overlap Change the direction of cut or pattern on the side hills The tires compresse...

Page 83: ...utting unit s or between cutting units Windrowing can make a line in the direction of travel Probable Cause Remedy The grass is higher than the level at which the mower can cut correctly Cut the grass more frequently Mowing the grass while grass is wet Cut when grass is dry Grass attaches to the roller Clean the rollers and scrapers Grass collecting on the bedknife Check the reel to bedknife adjus...

Page 84: ...rass an appearance like a wave This appearance is normally because of heavy contact points across a reel and bedknife Probable Cause Remedy The reel is damaged or is not worn equally Check and adjust the HOC on cutting units to same height Loose missing or over torqued bedknife screws Install replace or tighten the bedknife screws to the correct torque Cut ground speed is higher than normal Reduce...

Page 85: ...g heights that gives the grass a stepped cut appearance This appearance is normally because of a mismatched HOC height of cut adjustment from one cutting unit to another unit Probable Cause Remedy HOC is different from one cutting unit to another unit Check and adjust the HOC on cutting units to same height Difference in mower ride height side to side Check and adjust the tire inflation pressure ...

Page 86: ...13 NOTES 85 13Notes ...

Page 87: ...NOTES 13 86 ...

Page 88: ...es Jacobsen Limited West Road Ransomes Europark Ipswich IP3 9TT English Company Registration No 1070731 www ransomesjacobsen com North South America Jacobsen A Textron Company 11108 Quality Drive Charlotte NC 28273 USA www Jacobsen com When Performance Matters ...

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Jacobsen LF550-H-T4F, Safety, Operation And Maintenance Manual

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