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Engine start/stop circuit diagram

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SNS9

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ojv6cd-001

Engine Start/Stop Circuit_001

Key switch

Fusible link 50 A

Off Delay Timer

Reel rotation switch

Fusible link 30 A

Relay 1/Seat switch

Reel forward/reverse switch

Battery

Relay 2/Stop solenoid

Seat switch

Starter

Relay 3/reel rotation

SNS
5

Proximity switch/Parking brake

Alternator

Relay 5/Neutral

SNS
9

Proximity switch/Neutral

Fuel cut solenoid

Relay 6/Brake switch

Fuel pump

Glow plug

Relay 7/Maintenance

Fuse box

LM551

Electrical System

Page 5-16

Electrical Circuit Configuration

Содержание LM551

Страница 1: ...5 Unit Reel Mower Service Manual Serial No LM551 10001 Ver 1 0 ...

Страница 2: ...icates the articles regarding Danger Warning or Caution Those articles describe important safety precautions and so read them carefully to understand completely before operating the machine Failure to adequately follow these safety precautions may cause an accident Danger Danger This symbol indicates that serious injury or death will occur if the warning is ignored Warning This symbol indicates th...

Страница 3: ... on this product refer to the following manuals Baroness Owner s Operating Manual The Engine s Owner s Manual The Battery s Owner s Manual For details on parts refer to Parts Catalog As for repair items specified by the manufacturers of the following products their respective disassembling and maintenance procedures are not described in this manual Engine Hydraulic equipment For repair of those it...

Страница 4: ...LM551 Introduction ...

Страница 5: ...it Configuration Page 4 10 Flow of Hydraulic Oil Page 4 16 Hydraulic Circuit Flow Page 4 20 Measurement Page 4 28 Electrical System Page 5 1 General Inspection and Repair Page 5 2 Electrical System Outline Page 5 8 Electrical Circuit Configuration Page 5 13 About The Electrical Components Page 5 24 Main Vehicle Page 6 1 Adjustment Page 6 2 Removal and Installation of Each Section Page 6 18 Inspect...

Страница 6: ...LM551 Contents ...

Страница 7: ...s Page 1 2 Training Page 1 2 Preparation Page 1 2 Operation Page 1 3 Maintenance and Storage Page 1 4 Safety Signs and Instruction Signs Page 1 5 About Safety Signs and Instruction Signs Page 1 5 Safety LM551 Safety Page 1 1 ...

Страница 8: ...lopes Incorrect hitching and load distribution 1 2 3 1 2 Never allow children or people unfamiliar with these instructions to use or service the machine Local regulations may restrict the age of the operator The owner user can prevent and is responsible for accidents or injuries occurring to themselves other people or property Keep in mind that the owner operator and mechanic are responsible for a...

Страница 9: ...t for humps and hollows and other hidden hazards 2 3 4 5 6 7 8 9 1 2 3 4 1 2 3 4 Never operate across the face of the slope unless the machine is designed for this purpose Never drive the machine on a slope with an angle of gradient that is greater than that specified or in a place where there is a danger of the machine slipping Use extra care while operating machine with a grass catcher or other ...

Страница 10: ... units unless a positive machanical lock is provided 13 14 15 16 17 18 19 20 21 22 23 24 1 2 To reduce the fire hazard keep the engine silencer muffler battery compartment fuel storage area cutting unit and drives free of grass leaves or excessive grease Clean up oil or fuel spillage Allow the engine to cool before storing in any enclosure Only cover the machine with a sheet after hot parts have s...

Страница 11: ...ng and use insulated tools Keep all parts in good working condition and all hardware tightened Replace all worn or damaged decals Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Check the grass catcher frequently for wear or deterioration If the fuel tank has to be drained do this outdoors Swallowing engine coolant can cause injury or death keep out of re...

Страница 12: ...LM551 Safety Page 1 6 Safety Signs and Instruction Signs ...

Страница 13: ...Recycle and Waste Disposal Page 2 2 About Recycle Page 2 2 About Waste Disposal Page 2 2 Disposal LM551 Disposal Page 2 1 ...

Страница 14: ...d economical use of resources It may be required by local laws About Waste Disposal Make sure that waste generated when servicing or repairing the machine is disposed of in accordance with local regulations e g waste oil antifreeze rubber products and wires etc LM551 Disposal Page 2 2 Recycle and Waste Disposal ...

Страница 15: ...ightening Torques Page 3 8 General Precautions Page 3 9 Bearing Page 3 9 Stop Ring Page 3 10 Spring Pin Page 3 11 Special Tool Page 3 12 List of Special Tools Page 3 12 Usage Page 3 17 Jacking Up The Machine Page 3 18 About Jacking Up The Machine Page 3 18 Jack Up Points Page 3 18 Greasing Page 3 19 About Greasing Page 3 19 Greasing Points Page 3 19 Maintenance Standards and Maintenance LM551 Main...

Страница 16: ...59 7 32 0 21875 5 556 23 32 0 71875 18 256 15 64 0 234375 5 953 47 64 0 734375 18 653 1 4 0 2500 6 350 3 4 0 7500 19 050 17 64 0 265625 6 747 49 64 0 765625 19 447 9 32 0 28125 7 144 25 32 0 78125 19 844 19 64 0 296875 7 541 51 64 0 796875 20 241 5 16 0 3125 7 938 13 16 0 8125 20 638 21 64 0 328125 8 334 53 64 0 828125 21 034 11 32 0 34375 8 731 27 32 0 84375 21 431 23 64 0 359375 9 128 55 64 0 85...

Страница 17: ...ubic Meters Cubic Centimeters m3 m3 cm3 0 7646 0 02832 16 39 Weight Tons Short Pounds Ounces Avdp sh tn lb oz Metric Tons Kilograms Grams ton kg g 0 9078 0 4536 28 3495 Pressure Pounds Sq In Pounds Sq In psi psi Kilopascal Bar kPa mdyn cm2 6 895 0 069 Work Foot pounds Foot pounds Inch pounds lb ft lb ft lb in Newton Meters Kilogram Meters Kilogram Centimeters N m kgf m kgf cm 1 356 0 1383 1 152144...

Страница 18: ...nt track and rear track of rear wheel rear track front track Pivot stopper 1 0 mm 0 039 in Left and right steering angle clearance between kingpin stopper and stopper bolt 43 0 mm 1 70 in Top and bottom swing angle length of stopper bolt Proximity switch Proximity switch 1 mower 520 0 mm 20 47 in From ground to grease nipple position of 1 mower connecting fitting Adjustment of proximity switch rea...

Страница 19: ... for the galvanized or parkerized bolts In case that the strength of internal thread is weak it is not applied Do not use rusty or sand attached screw Otherwise it may cause insufficient tightening even if you apply the specified tightening torque The friction of the screw face becomes higher and the tightening torque is canceled out by the friction therefore sufficient tightening cannot be applie...

Страница 20: ...38 44 26 61 96 7 10 71 38 101 97 61 96 88 51 M6 8 11 81 58 112 17 70 81 97 36 14 18 142 76 183 55 123 91 159 32 M8 23 29 234 53 295 71 203 57 256 68 28 38 285 52 387 49 247 83 336 34 M10 45 57 458 87 581 23 398 30 504 51 58 76 591 43 774 97 513 36 672 68 M12 67 85 683 20 866 75 593 02 752 34 104 134 1 060 49 1 366 40 920 50 1186 03 M14 106 134 1 080 88 1 366 40 938 21 1 186 03 140 188 1 427 58 1 9...

Страница 21: ... 600 677 89 15 3 4 117 68 1200 1 355 78 19 3 4 117 68 1200 1 355 78 25 1 137 30 1400 1 581 74 32 1 1 4 166 72 1700 1 920 69 38 1 1 2 205 94 2100 2 372 61 50 2 245 17 2500 2 824 54 Fittings with Parallel Threads O Ring Seal Type The tightening torques for fittings with parallel threads O ring seal method are shown in the table below Tightening the fitting forcibly with a spanner or other such tool ...

Страница 22: ... motor 280 300 2 855 16 3 059 10 2 478 28 2 655 30 Wheel K0034120352 BOLT 8T P1 5 M12 35 67 85 683 20 866 75 593 02 752 34 Engine K0017100252 BOLT SMALL HT P1 25 M10 25 45 76 458 87 774 97 398 30 774 97 K0010121201 BOLT HT M12 120 67 134 683 20 1 366 40 593 02 1 186 03 K3680000030 M3 5 Screw accessories 0 78 1 18 7 95 12 03 6 90 10 44 Joint K0024100401 BOLT W HEX HOLE M10 40 62 72 632 21 734 18 63...

Страница 23: ...g using the bearing driver 3 2 1 gr5d95 001 Bearing_001 1 Shaft 2 Bearing 3 Bearing driver When pressing the bearing into the housing apply pressure evenly around the outer ring of the bearing using the bearing driver 3 2 1 gr5d95 002 Bearing_002 1 2 1 Housing 2 Bearing 3 Bearing driver When pressing the bearing into the shaft and housing evenly apply pressure evenly with the bearing driver in con...

Страница 24: ...ation which may lead to play and disengagement from the groove 1 2 4b82yb 001 Stop Ring_001 1 Stop ring for hole 2 Stop ring for shaft When installing the stop ring for a shaft assemble the stop ring so that the sharp edge side receives the load indicated by an arrow 1 3 2 4b82yb 002 Stop Ring_002 1 1 Shaft 2 Stop ring sharp edge side 3 Stop ring groove When installing the stop ring for a hole ass...

Страница 25: ...ns install them such that the slot in the spring pin is facing the direction in which load is applied from As shown in the illustration check the installation orientation of the spring pin if a load is applied in the direction of the arrow 1 A B 1 iv83dd 002 Spring Pin_002 1 Spring pin A Direction of rotation B Parallel direction If two spring pins are installed together ensure that the slots are ...

Страница 26: ...ure gauge for low pressure measurements vasdfi 004 K4701000020 Pressure gauge for hydraulic pressure measurements Pressure range 0 15 MPa 0 2 175 60 psi 0 152 96 kgf cm2 Pressure gauge for extremely low pressure measurements vasdfi 004 K4701000030 Pressure gauge for hydraulic pressure measurements Pressure range 0 5 MPa 0 725 20 psi 0 50 99 kgf cm2 LM551 Maintenance Standards and Maintenance Page ...

Страница 27: ...auge and hydraulic hose Thread size PF3 8 x PT1 4 Female connector 1015 04 vasdfi 007 K3009000290 Y Coupling for connecting the hydraulic pressure gauge and hydraulic hose Thread size PT1 4 x PF1 4 WP280 6 hose 1 600 vasdfi 008 K3107210600 Hydraulic hose for hydraulic pressure measurements Thread size PF1 4 Maintenance Standards and Maintenance LM551 Maintenance Standards and Maintenance Page 3 13...

Страница 28: ...ling the pressure gauge to the hydraulic valve pressure measuring port Thread size 9 16 18UNF x PF1 4 Adapter 1013 6 q9c6v6 008 K3000060002 Y Adapter for connecting the hydraulic hose and branched joint Thread size PT1 4 x PF1 4 Branched joint 1 2 q9c6v6 057 K3090000332 Y Coupling used for installing the hydraulic pressure gauge in the flow path for hydraulic pressure measurements LM551 Maintenanc...

Страница 29: ...8 LM551 8011Z0 Used to remove or install the wheel mount of the front wheel R wheel mount fixing kit q9c6v6 058 LM551 8012Z0 Used to remove or install the wheel mount of the rear wheel 6303 Bearing driver q9c6v6 009 K4802000752 Used when driving in bearings with outer φ47 and inner φ17 Maintenance Standards and Maintenance LM551 Maintenance Standards and Maintenance Page 3 15 Special Tool ...

Страница 30: ...6005 Bearing driver q9c6v6 009 K4802000502 Used when driving in bearings with outer φ47 and inner φ25 LM551 Maintenance Standards and Maintenance Page 3 16 Special Tool ...

Страница 31: ...r_002 1 Bearing Driver 2 Hammer 1 2 Oil Seal Installer Use an oil seal installer to install the oil seal etc correctly Caution Be careful not to hit your hand with a hammer etc Position the oil seal installer so that it is perpendicular to the surface of the oil seal 1 2 zjo2f4 001 Oil Seal Installer_001 1 Oil Seal Installer 2 Oil seal Firmly hold the oil seal installer and then hit it with a hamm...

Страница 32: ...ry or death Use the jack up points identified in this manual when jacking up the machine Only place a jack under the jack up points specified Placing a jack at any other point could result in damage to the frame or other parts Jack Up Points 2 1 4 3 rwyt62 103 Jack Up Points_001 Jack up points 1 Front right frame 2 Front left frame 3 Right pivot 4 Left pivot Front right frame rwyt62 104 Jack Up Po...

Страница 33: ...y be adhesion or damage due to lack of grease on moving parts they must be greased Add urea based No 2 grease in accordance with the Maintenance Schedule Other locations where the specified grease or lubricant is used are indicated in Greasing Points Add grease using the specified grease or lubricant Greasing Points Grease nipples are installed in the following locations Add grease every 50 hours ...

Страница 34: ...erating speed stopper 1 8 Pivot 3 9 Joint 1 Mower arm fulcrum There is one greasing point on each mower arm fulcrum Mower unit 1 8bq62b 359 Greasing Points_002 Mower unit 2 8bq62b 360 Greasing Points_003 1 Mower unit 3 8bq62b 361 Greasing Points_004 Mower unit 4 8bq62b 362 Greasing Points_005 Mower unit 5 8bq62b 363 Greasing Points_006 LM551 Maintenance Standards and Maintenance Page 3 20 Greasing...

Страница 35: ...6 Greasing Points_009 2 Mower unit 4 8bq62b 367 Greasing Points_010 Mower unit 5 8bq62b 368 Greasing Points_011 Lift arm fulcrum shaft There is one greasing point on each lift arm fulcrum shaft connected to the mower unit Mower units 1 and 4 1 4 8bq62b 369 Greasing Points_012 1 Mower unit 1 2 Mower unit 4 3 Maintenance Standards and Maintenance LM551 Maintenance Standards and Maintenance Page 3 21...

Страница 36: ...8bq62b 371 Greasing Points_014 Mower unit 3 8bq62b 372 Greasing Points_015 4 Brake pedal shaft fulcrum 8bq62b 373 Greasing Points_016 Traveling pedal shaft fulcrum 8bq62b 374 Greasing Points_017 Operating speed stopper 8bq62b 375 Greasing Points_018 Pivot Rear wheel Middle 8bq62b 376 Greasing Points_019 5 6 7 8 LM551 Maintenance Standards and Maintenance Page 3 22 Greasing ...

Страница 37: ...8bq62b 377 Greasing Points_020 Rear wheel Right 8bq62b 378 Greasing Points_021 Joint 8bq62b 379 Greasing Points_022 9 Maintenance Standards and Maintenance LM551 Maintenance Standards and Maintenance Page 3 23 Greasing ...

Страница 38: ...LM551 Maintenance Standards and Maintenance Page 3 24 Greasing ...

Страница 39: ...w of Hydraulic Oil during Forward Traveling Page 4 16 Flow of Hydraulic Oil during Steering Turning to Left Page 4 17 Flow of Hydraulic Oil During Raising Mower Unit Page 4 18 Flow of Hydraulic Oil When Cutting with Mower Unit Page 4 19 Hydraulic Circuit Flow Page 4 20 Traveling Circuit Page 4 20 Raise Lower Circuit Page 4 22 Steering Circuit Page 4 24 Reel Rotation Circuit Page 4 26 Measurement P...

Страница 40: ...air check to see whether the hydraulic system functions normally and whether there are any broken parts When the hydraulic system has been repaired or replaced operate the machine slowly idling the engine to allow the air to go out of the hydraulic circuit Make sure that there is no oil leakage In the event of oil leakage stop the engine repair the oil leak and check the amount of hydraulic oil in...

Страница 41: ...d then remove the key Drain the hydraulic oil from the hydraulic tank Drain the hydraulic oil from the hydraulic hoses and piping while the oil is still warm Check if the hydraulic tank interior and the suction filter if attached and clean as necessary 1 2 3 4 5 6 7 Fit the hydraulic hoses piping and hydraulic fittings that have been removed Important Use only the specified hydraulic oil Use of ot...

Страница 42: ... The Machine Page 3 18 Start the engine and drive the traveling portion while the engine is running at low rpm The charge pump sucks oil air in the hydraulic system will be bled in about 30 seconds and then the circuit will be filled with hydraulic oil 1 2 3 4 5 6 7 8 9 10 After the hydraulic circuit is filled with hydraulic oil operate the up down cylinder several times Stop the engine immediatel...

Страница 43: ...porting the hose in the specified position using the first spanner Next use the second spanner to tighten the hose swivel nut to the coupling vuy27z 001 Hydraulic Hose_001 Hydraulic Fitting Bite Type Tube Fitting Preliminary tightening Preset Cut the tube at the designated length at a right angle w7s31b 001 Bite Type Tube Fitting_001 1 Remove burrs on the inside and outside of the tube with a file...

Страница 44: ...the numbers of turns for tightening the nut Sleeve A short with no slit tighten 3 4 turn Sleeve B long with slit tighten 1 1 4 turn 2 1 w7s31b 012 Bite Type Tube Fitting_007 4 5 6 1 Sleeve A 2 Sleeve B w7s31b 007 Bite Type Tube Fitting_008 Loosen the nut and check that the sleeve end is a few millimeters apart from the tube end and that the sleeve will not move in the axial direction it is allowed...

Страница 45: ...01 Check to see if the O ring is properly fitted to the groove of the fitting Check to see that the thread part seat surface of O ring port and O ring are free from flaws or foreign matter Before fitting apply hydraulic oil or grease to the O ring For fitting screw in by hand till the fitting touches the other side lightly then tighten securely with a tool such as a spanner 1 2 3 4 Adjustable Elbo...

Страница 46: ... from that position in the loosening direction to the setting position 2 3 After fitting the opposite screw tighten the lock nut while holding the elbow with a spanner etc to ensure that the setting position does not change Taper Pipe PT Thread Joint Sealing Tape Method Make sure that the taper thread portion is not damaged or contaminated with foreign objects 1 14d3iz 001 Taper Pipe PT Thread Joi...

Страница 47: ... to the following precautions when you use the sealing tape Slightly pull the sealing tape as tight as you can clearly see the thread mark on the tape while you wrap it and overlap a half of its width to the previous round 2 Wrap it in clockwise direction direction to tighten the screw Wrapping in the opposite direction may cause the tape to be easily peeled off 1 2 3 ugh2b1 002 How to Use The Sea...

Страница 48: ...Up down cylinder 9 Piston pump 16 Orbitrol 3 Stack valve 10 Cross valve 17 Mower up down solenoid valve 4 Front wheel motor right 11 Oil cooler 18 Reel rotation solenoid valve 5 Front wheel motor left 12 Steering cylinder 19 Electromagnetic check valve 6 Rear wheel motor right 13 Line filter 7 Rear wheel motor left 14 Suction filter LM551 Hydraulic System Page 4 10 Hydraulic Circuit Configuration ...

Страница 49: ...hydraulic pressure supplied from the piston pump to rotate the wheel It is located on the rear left wheel This motor is for the rear left wheel 1 2 3 4 5 6 7 Gear pump The gear rotates with the engine rotation to discharge hydraulic oil to the hydraulic circuit The force of the discharged hydraulic oil moves the hydraulic equipment It is located under the seat Gear pump P1 source of power for 2 3 ...

Страница 50: ...ted at the center inside the front cover Mower up down solenoid valve Comprised of three solenoid valves and controls the up down of the mower unit with operation of the up down lever and traveling working selector switch setting A check valve also operates to prevent the mower units from lowering naturally It is located in the seat foot area Reel rotation solenoid valve Rotation stop of the reel ...

Страница 51: ...eel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L 5 Gear motor Solenoid valve for mower up down Magnetic check valve 3 Up down cylinder 2 Up down cylinder Oil cooler 1 Gear motor 4 Gear motor 3 Gear motor 2 Gear motor Normal r...

Страница 52: ...motor 405 0 24 71 M3 Wheel motor 310 0 18 92 M4 Wheel motor 310 0 18 92 M5 Gear motor 11 96 0 73 M6 Gear motor 11 96 0 73 M7 Gear motor 11 96 0 73 M8 Gear motor 11 96 0 73 M9 Gear motor 11 96 0 73 R1 Relief valve 230 0 23 0 234 5 3335 9 R2 Relief valve 230 0 23 0 234 5 3335 9 R3 Relief valve 14 0 1 4 14 3 203 1 R4 Relief valve 88 0 8 8 89 7 1276 3 R5 Relief valve 137 0 13 7 139 7 1987 0 R6 Relief ...

Страница 53: ...0 18 92 M5 Gear motor 19 89 1 21 M6 Gear motor 19 89 1 21 M7 Gear motor 19 89 1 21 M8 Gear motor 19 89 1 21 M9 Gear motor 19 89 1 21 R1 Relief valve 230 0 23 0 234 5 3335 9 R2 Relief valve 230 0 23 0 234 5 3335 9 R3 Relief valve 14 0 1 4 14 3 203 1 R4 Relief valve 88 0 8 8 89 7 1276 3 R5 Relief valve 137 0 13 7 139 7 1987 0 R6 Relief valve 28 0 2 8 28 6 406 1 SVRV1 Electromagnetic relief valve 172...

Страница 54: ...Flow of Hydraulic Oil during Forward Traveling_001 shows the flow of hydraulic oil shows the port name 1 Line filter 5 Front wheel motor left 9 Piston pump 2 Suction filter 6 Rear wheel motor right 10 Cross valve 3 Orbitrol 7 Rear wheel motor left 11 Hydraulic tank 4 Front wheel motor right 8 Gear pump LM551 Hydraulic System Page 4 16 Flow of Hydraulic Oil ...

Страница 55: ...aulic Oil during Steering Turning to Left_001 shows the flow of hydraulic oil within the hydraulic circuit shows the port name 1 Orbitrol 4 Steering cylinder 7 Hydraulic tank 2 Gear pump 5 Line filter 3 Piston pump 6 Suction filter Hydraulic System LM551 Hydraulic System Page 4 17 Flow of Hydraulic Oil ...

Страница 56: ...Raising Mower Unit_001 shows the flow of hydraulic oil within the hydraulic circuit shows the port name 1 Mower up down solenoid valve 5 Suction filter 9 4 cylinder 2 Electromagnetic check valve 6 1 cylinder 10 5 cylinder 3 Stack valve 7 2 cylinder 11 Hydraulic tank 4 Gear pump 8 3 cylinder LM551 Hydraulic System Page 4 18 Flow of Hydraulic Oil ...

Страница 57: ...utting with Mower Unit_001 shows the flow of hydraulic oil within the hydraulic circuit shows the port name 1 1 gear motor 5 5 gear motor 9 Reel rotation solenoid valve 2 2 gear motor 6 Oil cooler 10 Hydraulic tank 3 3 gear motor 7 Suction filter 4 4 gear motor 8 Gear pump Hydraulic System LM551 Hydraulic System Page 4 19 Flow of Hydraulic Oil ...

Страница 58: ...LP2 M2 G2 Solenoid valve for reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Sole...

Страница 59: ...reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mower up down ...

Страница 60: ...Solenoid valve for reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve...

Страница 61: ...reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mower up down ...

Страница 62: ...oid valve for reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A A B B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve ...

Страница 63: ...el motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L 5 Gear motor Solenoid valve for mower up down Magnetic check valve 3 Up down cylinder 2 Up down c...

Страница 64: ... Solenoid valve for reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valv...

Страница 65: ...reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mower up down ...

Страница 66: ...ulic oil before starting pressure measurement Warning Be sure to depressurize the hydraulic system before inspecting or repairing it When hydraulic equipment is removed cap or plug it to prevent contamination of the hydraulic system When using a measuring instrument such as a pressure gauge connect the in out hoses correctly Never connect the other way round to prevent breakage of the hydraulic sy...

Страница 67: ...ation Pressure gauge Pressure gauge seal Pressure gauge joint Female connector Hydraulic hose high pressure Reference List of Special Tools Page 3 12 The assembled hydraulic pressure gauge can be used to measure the pressure of each hydraulic circuit 2 1 3 4 5 ll5hfn 001 Hydraulic Pressure Measurement Preparation_001 1 Pressure gauge 2 Pressure gauge seal 3 Pressure gauge joint 4 Female connector ...

Страница 68: ...d valve for reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A 1 RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mow...

Страница 69: ...nector PF1 4 PF1 4 in the position where the manifold plug was removed 1 2 3 Install the pressure gauge for high pressure measurements onto the O ring connector PF1 4 PF1 4 Secure the pressure gauge to the main vehicle with string so that it does not fall 1 2 ms5j2m 020 Forward Traveling 4WD _004 1 O ring connector PF1 4 PF1 4 2 Pressure gauge for high pressure measurements Install slings to the l...

Страница 70: ... the same temperature as during ordinary use Check that there is no hydraulic oil leaking from the location where the pressure gauge was installed Rev the engine up to the maximum rpm Sit in the driver s seat and release the parking brake Press the traveling pedal to the forward side and measure the pressure gauge The pressure will decrease if the tires begin to slip Always measure the pressure wi...

Страница 71: ...tion G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 1 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mower up down Magneti...

Страница 72: ...he UNF90 adjustable elbow 1128 06 04 in the location of the plug removed from the cross valve At this time install the elbow so that its tip is toward the rear 1 2 3 Install a pressure gauge for high pressure measurements on the UNF90 adjustable elbow 1128 06 04 Secure the pressure gauge to the main vehicle with string so that it does not fall 2 1 pizs5v 016 Reverse Traveling 2WD _004 1 UNF90 adju...

Страница 73: ...emperature as during ordinary use Check that there is no hydraulic oil leaking from the location where the pressure gauge was installed Rev the engine up to the maximum rpm Sit in the driver s seat and release the parking brake Press the traveling pedal to the reverse side and measure the pressure gauge The pressure will decrease if the tires begin to slip Always measure the pressure with the tire...

Страница 74: ...r reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mower up dow...

Страница 75: ...t so that the tip of adapter 1013 6 attached to the branched joint is toward the right 1 4 3 2 zg85f8 049 Charge Circuit_004 1 Line filter 2 Hydraulic hose 3 Branched joint 1 2 4 Adapter 1013 6 Important Be careful when routing the hydraulic hose so that it is not pinched when lowering the seat Install the pressure gauge for extremely low pressure measurements to adapter 1013 6 At this time feedin...

Страница 76: ...perature as during ordinary use Check that there is no hydraulic oil leaking from the location where the pressure gauge was installed Rev the engine up to the maximum rpm Measure the pressure The charge circuit relief valve pressure is set to 1 4 MPa 14 3 kgf cm2 203 1 psi 6 7 8 9 10 LM551 Hydraulic System Page 4 38 Measurement ...

Страница 77: ...d valve for reel rotation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mo...

Страница 78: ...he top 1 2 3 4 Install the pressure gauge for high pressure measurements to adapter 1013 6 Hold the pressure gauge with your hands 3 1 2 z4kw7w 055 Up Down Circuit Rise _004 1 Adapter 1013 6 2 Branched joint 1 4 3 Pressure gauge for high pressure measurements Start the engine and allow the hydraulic oil temperature to increase to the same temperature as during ordinary use Check that there is no h...

Страница 79: ...tation G1 4 G1 4 G1 4 G1 2 G1 M2 M1 P2 P1 SVRV1 Front wheel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mower up down Magneti...

Страница 80: ... 3 Install the pressure gauge for low pressure measurements to adapter 1013 6 Hold the pressure gauge with your hands 3 2 1 g2hgdk 013 Steering Circuit Turning to Left _004 1 Adapter 1013 6 2 Branched joint 1 4 3 Pressure gauge for low pressure measurements Start the engine and allow the hydraulic oil temperature to increase to the same temperature as during ordinary use Check that there is no hyd...

Страница 81: ...heel motor left Piston pump Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L 5 Gear motor Solenoid valve for mower up down Magnetic check valve 3 Up down cylinder 2 Up down...

Страница 82: ...all branched joint 1 2 so that it is inserted between the gear motor coupling and hydraulic hose At this time install it so that the tip of adapter 1013 6 attached to the branched joint is toward the front 1 2 3 4 5 Install the pressure gauge for high pressure measurements to adapter 1013 6 Secure the pressure gauge to the main vehicle with string so that it does not fall 3 2 1 8lilaz 008 Mower Un...

Страница 83: ...ic oil leaking from the location where the pressure gauge was installed Sit on the driver s seat Rev the engine at around 2 000 rpm set traveling working changeover switch to Working and then set the reel rotation switch to Rotation The reel cutter will not rotate as it is secured with the wooden board however hydraulic pressure will be applied Rev the engine up to the maximum rpm Measure the pres...

Страница 84: ... Rear wheel motor left Rear wheel motor right Front wheel motor right SVRV2 T A A LF RRF RRR REV LRR LRF RF R6 9 16 18UNF Cross valve 9 16 18UNF 9 16 18UNF B R1 R2 Suction filter R3 P4 Gear pump P3 P2 P1 Pm A B B M4 M3 A B M7 M9 M8 Ø1 6 Ø1 2 Ø1 6 Ø1 0 Ø1 0 Hydraulic tank 30 3L Solenoid valve for mower up down Magnetic check valve 3 Up down cylinder 2 Up down cylinder Oil cooler T T B Stack valve M...

Страница 85: ...ower unit Remove the front side hydraulic hose of the gear motor and install the pressure gauge Before taking measurements set the reel rotation stop changeover levers of the gear motors of all mower units 1 3 4 and 5 except mower unit 2 to the Stop position The reel rotation circuit relief valve pressure is set to 17 2 MPa 175 4 kgf cm2 2494 6 psi Hydraulic System LM551 Hydraulic System Page 4 47...

Страница 86: ...LM551 Hydraulic System Page 4 48 Measurement ...

Страница 87: ...rcuit Page 5 19 Alarm Buzzer Circuit Page 5 21 About The Electrical Components Page 5 24 Fuse Box Page 5 24 Fusible Link Page 5 25 Key Switch Page 5 26 Seat Switch Page 5 27 Rocker Switch Page 5 27 Proximity Switch Page 5 28 Relays Page 5 40 Terminal Relay Page 5 44 Solenoid Valve Page 5 47 Delay Timer Page 5 50 Alarm buzzer Page 5 52 Level Switch Page 5 53 Fuel Pump Page 5 54 Pilot Lamps Page 5 5...

Страница 88: ...ricity Static electricity can cause ignition Do not use a dry cloth tissue paper or similar to clean the battery Doing so may cause ignition due to static electricity Keep the battery away from open flames Hydrogen gas may be generated from the battery Improper handling of the battery could cause a fire or explosion Danger Danger Do not use the battery near open flames or in a poorly ventilated ar...

Страница 89: ...wet cloth and flush the affected area with plenty of water Failure to do so may cause damage to the machine Wipe any electrolyte spilled on the top of the battery with a wet cloth Failure to do so may result in damage to the machine Do not fill the battery with anything other than purified water Filling with liquid other than purified water may cause generation of heat and toxic gases due to impur...

Страница 90: ...dusters Doing so could result in damage to the battery case and electrolyte leakage Select a battery that has the same terminal positions the positions of the positive and negative terminals as the original one Installing a battery that has different terminal positions could cause damage to the cables Do not allow the battery to come in contact with vinyl chloride containing plasticizer etc When h...

Страница 91: ...efilling Warning When refilling do not fill purified water above the UPPER LEVEL line Doing so may result in electrolyte leaks Check the electrolyte level from the side of the battery and refill if the level is lower than halfway between the UPPER LEVEL and LOWER LEVEL lines Refill by loosen and remove the vent plugs and filling with purified water up to the UPPER LEVEL line Tighten the vent plugs...

Страница 92: ...ic weight measured with a hydrometer The standard temperature for the specific weight of battery electrolyte is 20 C and the specific weight increases or decreases by 0 0007 in accordance with the temperature change of 1 C Thus it can be compensated by the following formula 1 2 3 4 S20 St 0 0007 t 20 1 2 3 lyp58z 002 Measurement of Battery Specific Weight_001 1 Specific weight converted for 20 C 2...

Страница 93: ...tely and wait for 30 minutes after charging Failure to observe these precautions could cause a fire or an explosion Caution The temperature of the electrolyte must be 45 C or lower during charging In the case of fast charging it must be 55 C or lower If the temperature exceeds these limits it could result in battery deformation or electrolyte leaks When charging the battery remove the vent plug of...

Страница 94: ...t Layout 12 11 8 6 SNS9 SNS2 SOL8 S4 T1 K12 7 5 K7 K6 K5 K1 K3 K4 K2 K9 K8 K10 K11 T2 SOL3 SOL4 SOL1 SOL2 4 S2 S1 M3 M2 S5 S3 M1 3 13 15 10 14 T3 erq4ky 018 Electrical Part Layout_001 LM551 Electrical System Page 5 8 Electrical System Outline ...

Страница 95: ...SNS4 SNS1 SNS3 SNS6 SNS8 SNS7 BZ1 BZ2 1 2 SOL6 SOL7 SOL5 S6 9 SNS5 erq4ky 019 Electrical Part Layout_002 Electrical System LM551 Electrical System Page 5 9 Electrical System Outline ...

Страница 96: ...er rotation solenoid 9 LED work lamp K4 Relay 4 Starter SOL2 Rear mower rotation solenoid 10 Battery K5 Relay 5 Neutral SOL3 Front mower reverse rotation solenoid 11 Starter K6 Relay 6 Brake switch SOL4 Rear mower reverse rotation solenoid 12 Alternator K7 Relay 7 Maintenance SOL5 All mower up down solenoid 13 Fuel cut solenoid K8 Relay 8 unit position detection SOL6 4 mower up down solenoid 14 Gl...

Страница 97: ...ode 2 Diode 3 Diode 4 Diode 11 Diode 6 Diode 9 42 Y 46 G 10 RW Fuse box A C 5A D F 15A G J 5A 54 Or 9 RB 59 Lg 44 RG 43 RW 60 W 75 G 58 Br 1 R 42 Y 55 GW 4 Lg 73 R 51 BW B B Fuel cut solenoid Water temperature sensor Water temperature switch Oil pressure switch Rotation sensor Glow Relay2 stop solenoid 76 W 75 G 16 WB 74 R E B 80 GR 113 114 8 YB M4 M6 L IG R R 50A 105D31R Frame M8 M4 M8 30A R M12 ...

Страница 98: ...ing of the mower unit Interlock System Operation Requirements Engine Starting and Operation Conditions The engine cannot be started unless the following conditions are present Otherwise the engine will stop Seat switch Proximity switch Parking brake Proximity switch Neutral Reel rotation switch Reel forward reverse switch Start the engine Sit on No reaction Reaction Stop When traveling operating r...

Страница 99: ...ystem operation requirements check the operation requirement items seat switch reel rotation switch reel forward reverse switch traveling working selector switch each proximity switch one by one to make sure that the interlock system is activated Electrical Circuit Configuration Engine Start Circuit There are four interlock switches related to engine starting each of which operates a relay in coor...

Страница 100: ...㸯㸯ࠒ ࠑ㸯㸯㸰ࠒ ࠑ㸴ࠒ㹕 ࠑ㸯㸶ࠒ㹐㹗 ࠑ㸯㸵ࠒ㹀㹰 ࠑ㸯㸴ࠒ㹕㹀 ࠑ㸰㸱ࠒ㹐㹕 S3 K6 S6 T1 S1 SNS5 SNS9 5 K4 K1 K3 K5 12 11 10 6 㹊㹐㹊㹥㹊㹥㹐㹀 ࠑ㸵㸶ࠒ㹐㹕 ࠑ㸲㸮ࠒ㹐㹕 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㸵㸷ࠒ㹐 ࠑ㸵㸷ࠒ㹐 ࠑ㸵㸵ࠒ㹗㹐 ࠑ㸵㸵ࠒ㹗㹐 ࠑ㸯㸶ࠒ㹐㹗 ࠑ㸶㸮ࠒ㹅㹐 ࠑ㸶㸯ࠒ㹅㹐㸺㸯㸯㸳㸼 ࠑ㸯㸯㸴ࠒ ࠑ㸯㸴ࠒ㹕㹀㹅㹊㹍㹕㹑㹒㸿㹐㹒 sldqbs 001 Engine Start Circuit_001 S1 Key switch 5 Fuse box T1 Off Delay Timer S3 Reel rotation switch 6 Fusible link 50 A K1 Relay 1 Seat switch S6 Seat switch 10 Battery K3 Relay 3 Reel ...

Страница 101: ...ctrical circuits during engine operation When engine operation conditions are satisfied the Relay 2 Stop solenoid operates and the fuel cut solenoid is activated along with it While the fuel cut solenoid is activated fuel continues to be supplied to the engine to continue operation of the engine If there is a malfunction such as the starter operating but the engine does not start or the engine sta...

Страница 102: ...ࠑ㸶㸯ࠒ㹅㹐 ࠑ㸶ࠒ㹗㹀 ࠑ㸵㸳ࠒ㹅 ࠑ㸵㸳ࠒ㹅 ࠑ㸵㸴ࠒ㹕 ࠑ㸵㸲ࠒ㹐 ࠑ㸵㸱ࠒ㹐 ࠑ㸯ࠒ㹐 ࠑ㸯㸯㸱ࠒ ࠑ㸯㸯㸲ࠒ 㸺㸯㸯㸳㸼 ࠑ㸯㸯㸴ࠒ ࠑ㸯㸰㸮ࠒ ࠑ㸯㸯㸷ࠒ ࠑ㸯㸯㸶ࠒ ࠑ㸯㸯㸵ࠒ ࠑ㸯㸯㸯ࠒ ࠑ㸯㸯㸰ࠒ ࠑ㸯㸰㸯ࠒ ࠑ㸯㸰㸰ࠒ ࠑ㸰㸱ࠒ㹐㹕 S4 S3 K6 S6 T1 S1 3 5 7 K2 14 13 12 10 K7 K5 6 11 K1 K3 SNS5 SNS9 㹅㹊㹍㹕㹑㹒㸿㹐㹒 ojv6cd 001 Engine Start Stop Circuit_001 S1 Key switch 6 Fusible link 50 A T1 Off Delay Timer S3 Reel rotation switch 7 Fusible link 30 A K1 Relay 1 Seat switch S4 Reel forward reverse switch 10 B...

Страница 103: ...ty switch up down lever up down operates the terminal relay and on delay timer to control the up down solenoid The operation of the on delay timer moves the rear mower unit up down with a 0 6 second delay after the front mower unit operates In operating mode proximity switch 4 5 mower detection is used to control the terminal relays which stops the mower unit in an intermediate position Inspect an...

Страница 104: ... ࠑ㹃ࠒ㹀 ࠑ㸯㸮㸶ࠒ ࠑ㸯㸮㸵ࠒ ࠑ㸯㸮㸳ࠒ ࠑ㸯㸮㸴ࠒ ࠑ㸳㸵ࠒ㹐㹊㹔㹡㹡㹔㹧㹬㹅㹌㹂 ࠑ㸯㸰㸲ࠒ㹐㹅 ࠑ㸯㸰㸳ࠒ㹗 ࠑ㹃ࠒ㹀㸿㹁 pz6f78 003 Mower Unit Up Down Circuit_001 S2 Traveling Working changeover switch SNS 3 Proximity switch 4 mower SOL 5 All mower up down solenoid K10 Relay 10 4 down detection SNS 4 Proximity switch 5 mower SOL 6 4 mower up down solenoid K11 Relay 11 2 3 up down SOL SNS 7 Proximity switch Up down lever up SOL 7 5 mower up down ...

Страница 105: ...ay and relay 8 unit position detection are activated to operate the solenoids and control the reel cutter rotation circuit Operating outline of electrical circuits for switching reel cutter forward reverse rotation The reel forward reverse switch controls the terminal relay and operation of the terminal relay operates the front rear mower reverse rotation solenoids This method controls the rotatio...

Страница 106: ...ࠑ㸲㸳ࠒ㹅 ࠑ㸴㸲ࠒ㹊㹀 ࠑ㸰㸴ࠒ㹀㹐 ࠑ㸰㸵ࠒ㹐㹗 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㸯㸮㸰ࠒ ࠑ㸯㸮㸯ࠒ 㹔㹡㹡㹔㹧㹬㹅㹌㹂 ࠑ㸶㸶ࠒ㹐㹕 ࠑ㸶㸷ࠒ㹊㹐 ࠑ㸷㸮ࠒ㹀㹗㸿㹁 dmxdti 028 Reel Rotation Circuit_001 S2 Traveling Working changeover switch SNS 1 Proximity switch 1 mower SOL 1 Front mower rotation solenoid S3 Reel rotation switch SNS 2 Proximity switch 2 mower SOL 2 Rear mower rotation solenoid S4 Reel forward reverse switch SNS 3 Proximity switch 4 mower SOL 3 Front mower re...

Страница 107: ...her the alarm is sounding continuously or intermittently helps to understand the type of fault that is present 1 2 3zsw3j 001 Alarm Buzzer Circuit_001 1 Buzzer EBS 12 intermittent 2 Buzzer EBM 12 continuous Electrical System LM551 Electrical System Page 5 21 Electrical Circuit Configuration ...

Страница 108: ...buzzer EBS 12 Buzzer EBS 12 circuit diagram 5 K3 S3 S2 K9 SNS1 15 SNS6 BZ1 㹄㸿㹁㹅㹆㹇㹈㸿㹀㹁㹂㹃㹐㹐㹕㹐㹕㹐㹅㹐㹕 ࠑ㸲㸴ࠒ㹅㹐㹕㹐㹀㹍㹰㹊㹥㹅㹗㹕 ࠑ㸷ࠒ㹐㹀 ࠑ㸲㸲ࠒ㹐㹅 ࠑ㸲㸱ࠒ㹐㹕㹔㹡㹡㹔㹧㹬㹅㹌㹂㹔㹡㹡㹔㹧㹬㹅㹌㹂 ࠑ㸶㸱ࠒ㹐㹅 ࠑ㸷㸱ࠒ㹐㹅 ࠑ㸱㸰ࠒ㹐㹕 ࠑ㸰㸲ࠒ㹅㹀 ࠑ㸲㸳ࠒ㹅 ࠑ㸴㸱ࠒ㹊 ࠑ㸶㸲ࠒ㹊 ࠑ㸰㸴ࠒ㹀㹐 ࠑ㸶㸳ࠒ㹅㹕 ࠑ㸳㸳ࠒ㹅㹕 ࠑ㸯㸰㸱ࠒ㹀㹐 ࠑ㸷㸰ࠒ㹅 ࠑ㸷㸰ࠒ㹅 ࠑ㸵㸯ࠒ㹀㹗 ࠑ㸵㸮ࠒ㹀㹗 ࠑ㸰㸵ࠒ㹐㹗 ࠑ㸰㸵ࠒ㹐㹗 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㸯㸱ࠒ㹅㹐 ࠑ㸯㸯㸯ࠒ ࠑ㸯㸯㸰ࠒ ࠑ㸯㸮㸱ࠒ ࠑ㸯㸮㸲ࠒ 㹐㹀㹐㹅 ࠑ㸷ࠒ㹐㹀 ࠑ㸳㸳ࠒ㹅㹕 gn1rcj 001 Buzzer EBS 12 Circuit_001 BZ1...

Страница 109: ... circuit if there is a defect with the operation of the buzzer EBM 12 Buzzer EBM 12 circuit diagram 2 BZ2 SNS5 SNS9 K6 K5 5 㹗㹅㹕㹄㸿㹁㹅㹆㹇㹈㸿㹀㹁㹂㹃㹐㹐㹕㹐㹕㹅㹌㹂㹔㹭㹳㹲㹔㹡㹡㹅㹌㹂㹔㹭㹳㹲㹔㹡㹡㹐㹅㹐㹕 ࠑ㸯㸮ࠒ㹐㹕㹐㹕 ࠑ㸯㸮ࠒ㹐㹕 ࠑ㸯㸯ࠒ㹐㹕㹐㹀 ࠑ㸯㸲ࠒ㹐㹀㹍㹰㹊㹥㹅㹗㹕 ࠑ㸷ࠒ㹐㹀 ࠑ㸵㸰ࠒ㹗 ࠑ㸰㸮ࠒ㹐㹊 ࠑ㸯㸷ࠒ㹐㹗 ࠑ㸯㸷ࠒ㹐㹗 ࠑ㸰㸮ࠒ㹐㹊 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㹃ࠒ㹀 ࠑ㸯㸰ࠒ㹐㹕 ࠑ㸰㸰ࠒ㹅 ࠑ㸰㸰ࠒ㹅 ࠑ㸰㸯ࠒ㹊 ࠑ㸰㸯ࠒ㹊 ࠑ㸶㸰ࠒ㹅㹀 ࠑ㸳㸱ࠒ㹗 ࠑ㸳㸱ࠒ㹗 ࠑ㸯㸰㸮ࠒ ࠑ㸯㸯㸷ࠒ ࠑ㸯㸯㸶ࠒ ࠑ㸯㸯㸵ࠒ ࠑ㸰㸱ࠒ㹐㹕 pt6k3x 001 Buzze...

Страница 110: ...buzzer EBM 12 hour meter D 15 A Proximity switch up down lever up down 4 mower 5 mower traveling pedal application position detection terminal relay L relay 8 unit position detection relay 9 overload detection relay 10 4 down detection relay 11 2 3 up down SOL all mower up down solenoid 4 up down solenoid 5 up down solenoid 2 3 mower up down solenoid on delay timer E 15 A Proximity switch 1 mower ...

Страница 111: ...t up away from the holder Note If the fuse is a type with a cap attached open the cap before removing the fuse 1 2 fb6njc 001 Replacement of Fusible Link_001 1 Fuse 2 Holder Inspection of Fuse Fusible Link The inspection of the fuse and fusible link can be performed visually Follow the steps below to check them Remove the fuse fusible link from the fuse box fuse holder Check the removed parts to m...

Страница 112: ...he negative is the engine block STOP START GLOW ON OFF 6raejy 004 Glow Thermo Start _001 START The engine starts by rotating the starter motor when the magnet switch of the starter motor is energized with the key at START position The electrical circuit of the starter motor is such that it does not turn unless the engine activation conditions of the interlock system are satisfied Interlock System ...

Страница 113: ...tch The rocker switch is located in the operation panel and under the seat and is used for the following switches Traveling working selector switch Switch for changing modes when traveling and working In traveling mode when operating the up down lever all mower units are moved up to their highest position and the mower units cannot be lowered In working mode when operating the up down lever 4 5 mo...

Страница 114: ...witch detection part Important Do not install a proximity switch that differs to the specified switch Doing so may result in damage to the electrical circuit This machine uses 9 proximity switches of 4 different types Proximity switch usage and type Type Color Name Application Proximit y switch NO V out Black Proximity switch Neutral For traveling pedal neutral detection Proximit y switch NC V out...

Страница 115: ...ts the pedal being pressed while the pedal stopper is released It is installed to prevent overloading the engine and piston pump An alarm buzzer is activated when pressing the traveling pedal is detected with the front mower reel cutter rotating 1 2 3 4 5 6 Proximity switch Up down lever up Mounted to the lower side of the fulcrum of the up down lever and detects the operation position of the up d...

Страница 116: ...oltage of the proximity switch V out while it is energized can determine the state of the output Follow the steps below to connect the battery and a voltmeter to the connector terminal of the proximity switch V out Connect the battery to the connector terminal and the battery to the connector terminal Connect the voltmeter to the connector terminal V out and the voltmeter to the connector terminal...

Страница 117: ...tects the position of the 1 mower unit lift arm This signal operates in coordination with proximity switches 4 5 mower to control the rotation start position of the 1 4 and 5 reel cutters Follow the steps below to make adjustments Important Be sure to check that the following have been adjusted before adjusting the proximity switch 1 mower Adjustment of 1 mower stopper Reference Adjustment of Mowe...

Страница 118: ...1 Traveling Working changeover switch 2 Reel rotation switch A Working B Traveling C Rotation D Stop 3 4 5 Loosen the bolt securing the up down sensor mounting plate Check that the terminal relay LED illuminates when moving the proximity switch further away from the plastic magnet 4 B A 2 3 1 u2pelw 004 Adjustment of Proximity Switch 1 Mower_004 1 Up down sensor mounting plate 2 Proximity switch 1...

Страница 119: ...ty switch 2 mower Adjustment of 2 3 mower stopper Reference Adjustment of Mower Stopper Page 6 14 Important Adjust proximity switch 2 mower so that the point at which the proximity switch begins reacting is the specified distance Apply the parking brake and then stop the engine Adjust the plastic magnet attached to the 2 lift arm so that its bottom surface is parallel with the tip of the part to w...

Страница 120: ...er 3 Nut 4 Plastic magnet A Closer B Further 5 6 7 1 2 3 4 5 6 7 8 4mower up down 5mower up down All mowers up down 1 4 5mower rotation 2 3mower rotation 1 4 5mower reverse 2 3mower reverse 2 1 qqmvi3 005 Adjustment of Proximity Switch 2 Mower_005 1 Terminal relay 2 LED Slowly move the proximity switch closer to the plastic magnet and secure the 2 sensor mounting plate when LED turns off After adj...

Страница 121: ...te Replace it if it is damaged and secure it with quick setting adhesive so that the bottom surface of the magnet is parallel with the parallel line A as shown in the figure 2 A 1 t1hqle 001 Adjustment of Proximity Switch 4 Mower_001 1 Lift arm 4 2 Proximity sensor magnet A Parallel line 1 1 Start the engine and raise and lower the mower unit so that the 4 mower unit makes contact with the 4 5 uni...

Страница 122: ...e position that the proximity switch is adjusted to Adjustment of Proximity Switch 5 Mower Follow the same steps as the proximity switch 4 mower and adjust the proximity switch 5 mower after adjusting the height of the 5 mower unit When adjusting the proximity switch 5 mower check the illumination condition of LED Adjustment of Proximity Switch Parking Brake Proximity switch parking brake detects ...

Страница 123: ...move the proximity switch away from the plastic magnet and secure the P brake sensor plate in a position where the buzzer starts to sound After adjustment check that the buzzer does not sound at notch 1 but sounds at notch 2 Return the proximity switch neutral coupler to its original position Adjustment of Proximity Switch Traveling Pedal Application Position Detection Proximity switch traveling p...

Страница 124: ...ection_002 1 Traveling Working changeover switch 2 Reel rotation switch A Working B Traveling C Rotation D Stop 2 3 Operate the mower unit up down lever and lower the mower unit 1 1 A C B lwkjk9 003 Adjustment of Proximity Switch Traveling Pedal Application Position Detection_003 1 Mower unit up down lever A Up B Neutral C Down Set the reel rotation switch to Rotation Chock the wheels so that the ...

Страница 125: ... proximity switch away from the plastic magnet and secure the P brake sensor plate in a position where the buzzer stops sound After adjustment check that the buzzer does not sound with the pedal stopper ON and that the buzzer sounds with the pedal stopper OFF when pressing the traveling pedal Adjustment of Proximity Switch Up Down Lever Up Down The proximity switch up down lever up and proximity s...

Страница 126: ...eat switch Relays MR5A411A1K Brown 2 Relay 2 Stop solenoid 3 Relay 6 Brake switch 4 Relay 3 Reel rotation Relays MR5A602A1K Grey 5 Relay 5 Neutral 6 2 Relay 4 Starter Relay comp White Black 6 1 Relay 4 Starter Relays CA1aF 12V N 5 Black 7 Relay 7 Maintenance 8 Relay 11 2 3 up down SOL 9 Relay 8 unit position detection Relays CA1 DC12V N Black 10 Relay 9 Overload detection 11 Relay 10 4 down detect...

Страница 127: ... overloading the engine and piston pump by detecting that the traveling pedal is pressed with the front mower reel cutter rotated Relay 10 4 down detection Related to the 2 3 mower unit delay when lowering the mower units It is installed to operate the rear mower unit down after detecting that the front mower unit has been lowered Relay 11 2 3 up down SOL Related to 2 3 mower unit up down It opera...

Страница 128: ... Inspection of Relay MR5A602A1K _002 Normal operation is when there is no conduction between 3 and 6 and there is conduction between relay terminals 4 and 5 with the battery connected to relay terminals 1 and 2 2 1 4 3 6 5 2 5 6 1 4 3 38jyg3 006 Inspection of Relay MR5A602A1K _003 1 2 3 4 Inspection of Relay CA1aF 12V N 5 Remove the power relay The normal measured resistance between relay terminal...

Страница 129: ... of Relay CA1aF 12V N 5 _002 3 Normal operation is when there is conduction between relay terminals 3 and 4 with the battery connected to relay terminals 1 and 2 2 4 3 1 3 4 2 1 38jyg3 016 Inspection of Relay CA1aF 12V N 5 _003 4 Electrical System LM551 Electrical System Page 5 43 About The Electrical Components ...

Страница 130: ...and 4 and no conduction between relay terminals 3 and 5 with the battery connected to relay terminals 1 and 2 2 5 4 3 1 1 3 4 2 5 38jyg3 013 Inspection of Relay CA1 DC12V N _003 1 2 3 4 Terminal Relay The terminal relay controls the following Reel cutter rotation direction Up down of all mower units Position of 4 5 mower unit The operating condition can be determined by checking the illumination o...

Страница 131: ...r position detection Down Controls the up down solenoid valves of all mower units Relay 5 Reel rotation switch Rotation Traveling Working selector switch Working 1 mower unit down position detection Controls the rotation solenoid valves of the front mower units Relay 6 Reel rotation switch Rotation Traveling Working selector switch Working 2 mower unit down position detection Controls the rotation...

Страница 132: ... Continuity 9 5 10 6 11 7 12 8 No continuity 9 13 10 14 11 15 12 16 1 1 2 3 4 5 com 6 7 10 9 11 12 14 13 15 16 8 20 20 20 20 bsdzeb 003 Inspection of Terminal Relay_001 Important This relay has a specific polarity When connecting the battery always connect positive to the COM terminal Connect COM to the battery and terminal relay terminals 1 to 4 to the battery Check that the LED illuminates in th...

Страница 133: ...pecific polarity When connecting the battery always connect positive to terminal 8 Check that the continuity is in the following condition when applying battery voltage between relay terminals 1 and 8 Terminals 5 6 no continuity Terminals 3 4 continuity 1 8 3 6 4 5 38jyg3 003 Inspection of Relay G6B 2114P US _003 Solenoid Valve Reel Rotation Solenoid Valve The reel rotation solenoid valve is locat...

Страница 134: ...ll mower units and the 4 5 mower up down solenoid stops the unit in an intermediate position during work 1 3 2 rt75yg 001 Mower Up Down Solenoid Valve_001 1 2 3 1 All mower up down solenoid 2 4 mower up down solenoid 3 5 mower up down solenoid Note All three coils used for the mower up down solenoid valve are the same Mower Up Down Solenoid Valve Operation All mower up down solenoid The hydraulic ...

Страница 135: ...noid opens the hydraulic path and enable up down of the rear mower unit Inspection of Solenoid Disconnect the solenoid couplers Use a tester to measure the resistance between the solenoid terminals Check that there are no disconnections and that there is resistance present See the solenoid specifications for resistance values 7r53wa 001 Inspection of Solenoid_001 1 2 Electrical System LM551 Electr...

Страница 136: ... up down solenoid 9 5 Ω 1 3 A Delay Timer Important Make sure not to install the delay timer incorrectly ON OFF Off Delay Timer Seat safety switch timer The off delay timer is located under the left side of the seat and is linked to the seat switch The signal continues to be output even if the driver is away from the seat for 0 9 seconds while driving to prevent the engine from turning off if the ...

Страница 137: ... to create a test circuit Connect coupler terminal 1 to the battery Connect lamp line 1 to coupler terminal 2 Connect switch line 1 to coupler terminal 3 Connect coupler terminal 4 to the battery Connect lamp line 2 to the battery Connect switch line 2 to the battery Turn the switch to ON If the lamp turns on 0 6 seconds after the on delay timer is normal If the lamp turns off 0 9 seconds after th...

Страница 138: ...Alarm Buzzer Important This alarm buzzer has a specific polarity When connecting it to the battery make sure to connect the positive and negative terminals correctly Failure to do so may result in damage Prepare two extension cables Connect the extension cables and the alarm buzzer cables Connect the red cable of the alarm buzzer to the positive terminal of the battery and the black cable to the n...

Страница 139: ...rcuit tester Replacement of The Level Switch Important Be careful that dirt does not fall into the hydraulic tank Remove the bolts spring washers and washers of the hydraulic oil level sensor mounting plate and then remove the level switch from the hydraulic tank Completely remove the seal and liquid gasket adhesive from the hydraulic tank after removing the level switch Apply liquid gasket to the...

Страница 140: ...re Charge The charge lamp lights up when the ignition key is set to the ON position before the engine starts It turns off when the engine starts and the alternator starts operating properly The internal circuits of the alternator control when to turn the charge lamp on and off If the charge lamp lights up during the engine running there may be a failure in charging due to malfunction of the altern...

Страница 141: ...l movement of the float 1 2 3 4 96ltfa 003 Fuel Gauge_001 1 Fuel gauge 2 Positive red black 3 Negative black 4 Signal yellow black 1 3 2 96ltfa 006 Fuel Gauge_002 1 Tank unit 2 Ground black 3 Signal yellow Water Temperature Gauge The water temperature gauge is connected to the water temperature sensor located on the engine cylinder head the front left side of the machine and indicates the water te...

Страница 142: ...our Meter_001 1 1 10 wheel 2 Hour wheel Work Lamp The work lamps are located at the top of the ROPS and use 2 LED lamps for auxiliary lighting 2 1 6uy71y 014 Work Lamp_001 1 LED work lamp 2 ROPS The work lamps light up and off by operating the toggle switch light switch 1 A B bnec97 024 Work Lamp_002 1 Light switch A ON B OFF The fuse 15 A is located at the bottom of the frame under the seat and i...

Страница 143: ...Connect the extension cables and the work lamp cables Connect the red cable of the work lamp to the positive terminal of the battery and the black cable to the negative terminal of the battery and check that the work lamp illuminates 5 2 1 3 4 6 6eadk2 001 Inspection of LED Work Lamp NS 2556 _001 1 Inspection LED work lamp NS 2556 2 Red cable 3 Black cable 4 Battery 5 Positive terminal 6 Negative ...

Страница 144: ...LM551 Electrical System Page 5 58 About The Electrical Components ...

Страница 145: ...opper Page 6 9 Adjustment of Control Arm Page 6 10 Adjustment of Belt Tension Page 6 11 Adjustment of Stoppers Page 6 11 Adjustment of Mower Stabilizer Page 6 12 Adjustment of Stopper Nuts Page 6 12 Adjustment of Mower Unit Leveling Spring Page 6 13 Adjustment of Mower Stopper Page 6 14 Removal and Installation of Each Section Page 6 18 Mower Unit Page 6 18 Axle Page 6 21 Brake Page 6 33 Inspectio...

Страница 146: ...be decreased and the pedaling will be light If the brake pedal play is too small the braking power will be increased and the pedaling will be heavy 4 1 2 3 nfzln9 025 Adjustment of Brake_003 1 Brake wire 2 Adjustment bolt 3 Lock nut 4 Brake pedal Start the engine Drive the machine to check the following Make sure that heat is not generated in the brake area Make sure that the left and right brakes...

Страница 147: ... ulabms 013 Adjustment of Parking Brake_002 1 Brake wire 2 Adjustment bolt 3 Lock nut Adjusting The Neutral Position of The Piston Pump Caution Make sure not to touch rotating tires Caution While adjusting the neutral position the machine may start to move Securely place jacks beneath the jack up points and then raise the machine until all tires lift off the ground If the machine moves forward or ...

Страница 148: ...res do not move Adjustment of the Push Pull Cable The range of motion of the push pull cable may change due to deterioration of the traveling pedal Inspect it and if necessary make adjustments Apply the parking brake and then stop the engine Check that the piston pump has been adjusted to neutral position Adjust the lock nut so that the wire bracket comes to the center of the push pull cable pisto...

Страница 149: ...a 002 Adjustment of Traveling Pedal_001 7 1 2 3 4 1 Forward travel pedal 2 Reverse travel pedal 3 Stopper bolt for forward travel 4 Stopper bolt for reverse travel A 20 0 mm 0 79 in Press the forward travel pedal and check that the stopper bolt for forward travel is in contact with the stepped plate Then turn it another one and a half turns and tighten the lock nut in that position 3 2 1 q5w4la 00...

Страница 150: ...sted to neutral position Check that the push pull cable has been adjusted Check that the traveling pedal has been adjusted 8 9 10 1 2 3 4 Turn the pedal stopper in the right foot area to the ON position 1 A A B B 3 2 unp7tf 003 Adjustment of Pedal Stopper_001 1 Pedal stopper 2 Work speed lock lever 3 Traveling pedal A ON B OFF Loosen the work speed lock lever nut Adjust the length of stopper bolt ...

Страница 151: ...s Warning Before starting the engine verify that no one is around the machine and that the area is free of obstacles Caution Make sure not to touch any hot areas or rotating parts Remove the control arm cover and arm bracket cover of the operation panel Open the hood Move the throttle lever on the operation panel against the low speed stopper Use the throttle lever nut and adjust it so that the le...

Страница 152: ... 2 6v3fj3 030 Adjustment of Throttle Wire_003 1 Adjustment bolt 2 Nut A 1 0 mm 0 039 in Start the engine Adjust the high speed stopper bolt by loosening the nut so that the maximum engine speed is 3 100 rpm when the throttle lever stopper makes contact with the high speed stopper bolt 5 6 7 8 Tighten the nut 1 2 4 3 6v3fj3 031 Adjustment of Throttle Wire_004 1 Throttle lever 2 Stopper 3 High speed...

Страница 153: ... 0 5 0 mm 0 039 0 20 in FRONT 2 1 1 ufr7l4 005 Adjustment of Toe Angle_002 1 Lock nut 2 Tie rod 1 2 3 Adjustment of Pivot Stopper Warning Before starting the engine verify that no one other than workers are around the mower unit and that the area is free of obstacles The pivot stopper bolt has adjustment of the left and right steering angle and the top and bottom swing angle Follow the steps below...

Страница 154: ...djustment of Pivot Stopper_003 1 Pivot 2 Stopper bolt 3 Nut A 43 0 mm 1 70 in Use the same procedure to adjust the left side swing angle 2 3 1 2 3 4 Adjustment of Control Arm The control arm can be adjusted up or down and forward or backward Adjust the position to fit the operator Loosen the nut Slide the control arm up or down and forward or backward to the appropriate position Tighten the nut 1 ...

Страница 155: ...dn8n 004 Fan Belt_001 1 Fan Belt 2 Blade 3 Alternator 4 Bolt A 5 Bolt B A 10 mm 0 39 in 1 2 Adjustment of Stoppers Important The installation method and installation position of the stoppers differ depending on the mower unit model The stopper is installed to prevent the mower arm from interfering with the frame when swiveling the mower units 2 and 3 Install in the appropriate position Note The st...

Страница 156: ...40 0 mm 5 51 in 1 2 3 4 5 Adjustment of Stopper Nuts Note Depending on the specifications this function may not be available The stopper nut adjusts the movement range of the mower unit Apply the parking brake and then stop the engine Important When a grass catcher is installed on LH52 5 inch mower unit a large movement range of the mower may cause the grass catcher to come into contact with the f...

Страница 157: ...justment of Mower Unit Leveling Spring_002 1 Coil spring 2 Lift arm A 22 in mower unit B 26 in mower unit Mower unit 3 1 2 B A imue1o 005 Adjustment of Mower Unit Leveling Spring_003 1 Coil spring 2 Lift arm A 22 in mower unit B 26 in mower unit Mower unit 4 22 in mower unit 1 2 B A imue1o 002 Adjustment of Mower Unit Leveling Spring_004 1 Coil spring 2 Lift arm A Light spring load standard positi...

Страница 158: ...it 1 differs according to the type of mower unit Install in the appropriate direction Loosen the nuts of the right and left mower stoppers Place the right and left mower stoppers to the highest position and attach them temporarily On a level surface raise all mower units Depress the locking pedal while firmly depressing the brake pedal to lock it Stop the engine Follow the steps below to adjust th...

Страница 159: ... in the appropriate direction On a level surface lower all mower units Depress the locking pedal while firmly depressing the brake pedal to lock it Stop the engine Open the hood Open the underseat cover 1 2 3 4 5 Remove the nuts of the mower stopper 1 2 3 2 3 oxie9a 002 Adjustment of Mower Stoppers for Mower Unit 2 and 3_001 1 Nut 2 Spring washer 3 Washer Adjust the mower stopper position To set t...

Страница 160: ...the mower stopper is as follows LH62 1 A B oxie9a 017 Adjustment of Mower Stoppers for Mower Unit 2 and 3_004 1 Mower stopper A Front B Rear 8 9 10 11 LH52 LS62 A B 1 oxie9a 010 Adjustment of Mower Stoppers for Mower Unit 2 and 3_005 1 Mower stopper A Front B Rear LS66 Mower unit 2 After installing the mower stoppers press the stopper auxiliary fitting COMP firmly against the bottom side of the fr...

Страница 161: ...between the mower unit type and the mower stopper attaching position LH62 oxie9a 015 Adjustment of Mower Stoppers for Mower Unit 4 and 5_001 LH52 LS62 A B oxie9a 016 Adjustment of Mower Stoppers for Mower Unit 4 and 5_002 A LS62 B LH52 On a level surface lower all mower units Depress the locking pedal while firmly depressing the brake pedal to lock it Stop the engine Follow the steps below to adju...

Страница 162: ...mower connecting fitting the return force of the spring may cause injury Pay careful attention during removal Remove the bolt spring washer and washer used to install the reel motor 4 3 2 1 z4x8uv 001 Removal of LS62 LS66_001 1 Reel motor 2 Bolt 3 Spring washer 4 Washer Remove the reel motor and seal 2 1 z4x8uv 002 Removal of LS62 LS66_002 1 Reel motor 2 Seal Remove the retaining snap pin and then...

Страница 163: ...ring may cause injury Pay careful attention during removal Remove the bolt spring washer and washer used to install the reel motor 1 4 3 2 hbntv1 001 Removal of LH62_001 4 1 1 Reel motor 2 Bolt 3 Spring washer 4 Washer Remove the reel motor and seal 1 2 hbntv1 002 Removal of LH62_002 1 Reel motor 2 Seal Remove the retaining snap pin and then the flat head pin and collar with hole 1 3 2 hbntv1 003 ...

Страница 164: ...oval Remove the bolt and disc spring washer used to install the reel motor 1 3 2 8tqua9 001 Removal of LH52_001 1 Reel motor 2 Bolt 3 Disc spring washer Remove the reel motor 1 8tqua9 002 Removal of LH52_002 1 2 1 Reel motor Remove the retaining snap pin and then the flat head pin and collar with hole 1 2 3 8tqua9 003 Removal of LH52_003 1 Retaining snap pin 2 Flat head pin 3 Collar with hole Lift...

Страница 165: ...and rod end shaft tip are aligned to prevent damage to the rod end shaft Install the tie rod end puller to the rod end 1 2 3 Rotate the threaded section of the tie rod end puller to the tightening side and remove it from the kingpin 1 3 2 g39lnk 004 Removal of Tie Rod_002 1 Rod ends 2 Tie rod end puller 3 Kingpin Follow the same steps to remove the tie rod end from the other side Installation of T...

Страница 166: ...ng kit in the installation position as shown in the illustration 1 2 3 k8h973 002 Removal of Kingpin_002 1 2 1 2 1 Wheel mount 2 R wheel mount fixing kit 3 Bolt Loosen the slotted nut with a socket wrench Note Socket wrench size 37 mm 1 2 k8h973 003 Removal of Kingpin_003 1 Slotted nut 2 Socket wrench Caution If you remove the wheel mount with the slotted nut removed the wheel mount and caliper ma...

Страница 167: ...r wheel grass guard 4 Wheel motor Remove the tie rod Reference Removal of Tie Rod Page 6 21 5 3 4 Follow the steps below to remove the steering cylinder Remove the U nut and disc spring washer 1 2 k8h973 007 Removal of Kingpin_007 1 U nut 2 Disc spring washer Remove the cotter pin washer collar and flat head pin Remove the steering cylinder 4 5 2 3 1 k8h973 008 Removal of Kingpin_008 1 Cotter pin ...

Страница 168: ... to remove the spring pin 1 2 k8h973 010 Removal of Kingpin_010 1 Spring pin 2 Pin puller 6 1 2 Remove the collar and lid 1 2 k8h973 011 Removal of Kingpin_011 1 Collar 2 Lid Lower the jack and remove the kingpin from the pivot 2 3 1 k8h973 012 Removal of Kingpin_012 1 Jack 2 Kingpin 3 Pivot Remove the right kingpin following the same steps for removing the left kingpin Note The right kingpin does...

Страница 169: ...steps below to install the kingpin Apply grease to the kingpin shaft 1 uf49yq 001 Installation of Kingpin_001 1 Shaft 2 Kingpin 1 2 1 Apply grease to the O ring and thrust bearing Reference Replacement of The Kingpin Bearing Page 6 40 1 2 uf49yq 002 Installation of Kingpin_002 1 O ring 2 Thrust bearing Install the O ring and thrust bearing on the shaft of the kingpin Reference Replacement of The K...

Страница 170: ... 2 Kingpin 3 Pivot Install the lid and collar 2 1 uf49yq 005 Installation of Kingpin_005 1 Lid 2 Collar 4 5 Align the hole of the collar with the hole of the shaft of the kingpin 1 2 uf49yq 006 Installation of Kingpin_006 1 Collar hole 2 Kingpin shaft hole Important When installing the spring pin it has a specific installation direction Reference Spring Pin Page 3 11 Install the spring pin using a...

Страница 171: ...uf49yq 009 Installation of Kingpin_009 8 3 1 2 1 Steering cylinder 2 Cylinder mounting shaft 3 U nut 4 Disc spring washer Install the tie rod Reference Installation of Tie Rod Page 6 21 Secure the wheel motor to the kingpin using the bolt spring washer and rear wheel grass guard Note Tightening torque 104 134 N m 1 060 49 1 366 40 kgf cm 5 4 3 2 1 uf49yq 010 Installation of Kingpin_010 1 Bolt 2 Sp...

Страница 172: ...14 2 3 4 1 Wheel mount 2 R wheel mount fixing kit 3 Bolt Important Wheel motor shaft slotted nut tightening torque 280 300 N m 2 855 16 3 059 10 kgf cm If the hole of the cotter pin does not fit even after tightening the slotted nut by the above mentioned tightening torque tighten it more until it fits into the hole When the hole fits install the cotter pin into the slotted nut Tighten the slotted...

Страница 173: ...ngpin Note The right kingpin does not have the steering cylinder attached Pivot Removal of Pivot Caution Exercise care in handling the pivot since it is heavy Position jacks to the left and right of the pivot and jack up the machine Reference Jack Up Points Page 3 18 Remove the rear tire 7 8 7 8 9 10 11 1 2 Remove the tie rod Reference Removal of Tie Rod Page 6 21 Remove the left and right kingpin...

Страница 174: ...nd frame 1 2 3 4 gt9gk8 003 Removal of Pivot_003 1 Pivot shaft 2 Pivot 3 Frame 4 Plain washer 6 7 Remove the pivot shaft 1 gt9gk8 004 Removal of Pivot_004 1 Pivot shaft Slowly lower the jacks positioned on the left and right of the pivot to a position where the pivot can be removed from the side of the frame 1 gt9gk8 005 Removal of Pivot_005 1 Pivot 8 9 LM551 Main Vehicle Page 6 30 Removal and Ins...

Страница 175: ...eavy Apply grease to the pivot shaft 1 m8a59i 001 Installation of Pivot_001 1 Pivot shaft 10 1 Place the jacks in the positions shown in the illustration 1 1 m8a59i 002 Installation of Pivot_002 1 Jack Slide the pivot in from the side of the frame 1 2 gt9gk8 006 Installation of Pivot_003 1 Pivot 2 Frame 2 3 Main Vehicle LM551 Main Vehicle Page 6 31 Removal and Installation of Each Section ...

Страница 176: ... 5 Pivot shaft Install the left and right king pins Reference Installation of Kingpin Page 6 25 Install the tie rod Reference Installation of Tie Rod Page 6 21 Important When tightening the bolts do so in the correct tightening sequence diagonally opposite Install the rear tires Temporarily tighten the bolts Remove the jack stand Remove the jack Tighten the bolts of the rear tires to their specifi...

Страница 177: ...liper_002 1 Wheel mount 2 F wheel mount fixing kit 3 Bolt 1 2 3 Loosen the slotted nut with a socket wrench Note Socket wrench size 37 mm Remove the F wheel mount fixing kit 1 2 u5l8nd 015 Removal of Brake Caliper_003 1 Socket wrench 2 F wheel mount fixing kit Release the brake Remove the flat head pin connecting the brake wire with the cam lever by removing the cotter pin and washer Remove the br...

Страница 178: ...ft 2 Wheel mount 3 Caliper 4 Mount bracket 9 Place the wheel mount disc rotor part with the calipers attached As shown in the illustration prepare two double folded corrugated cardboards of an appropriate size 2 2 3 1 u5l8nd 019 Removal of Brake Caliper_007 1 Corrugated cardboard 2 Caliper 3 Wheel mount disc rotor part Remove the top and bottom calipers in order from the disc rotor part After remo...

Страница 179: ...ckness is 3 3 mm 0 13 in or less 1 3 2 4 5 6 u5l8nd 022 Removal of Brake Caliper_010 12 13 1 Housing 2 Pad cam 3 Pad support cam 4 Pad carrier 5 Pad support carrier 6 Spring retainer Move the cam lever in the direction of the arrow and remove the pivot pin along the hole on the housing Caution There are two pivot pin receivers inside the housing The position varies between the brake calipers CW an...

Страница 180: ... lever 2 Housing 3 Pivot pin Important Note that the pivot pin receiver position is different between the brake caliper CW and CCW 1 2 Insert the pivot pin into the pivot pin receiver of the housing 1 3 4 2 ikhpjf 003 Installation of Brake Caliper_003 1 Housing 2 Cam lever 3 Pivot pin receiver 4 Pivot pin Install the spring retainer into the housing in the correct direction If it is difficult to i...

Страница 181: ...e position of the key of the wheel motor Align the key groove of the wheel mount with the key of the wheel motor Install the wheel mount with the top and bottom calipers installed into the shaft of the wheel motor while holding it with both hands At this time align the groove of the bottom caliper with the mount bracket first and push in the wheel mount a little Next align the groove of the top ca...

Страница 182: ...iper_010 1 Torque wrench Follow the steps below to install the brake wire Loosen the brake wire lock nut of the brake pedal side Tighten the lock nut at the end of the threaded section of the adjustment bolt 2 1 1 2 3 3 ulabms 013 Installation of Brake Caliper_011 1 Brake wire 2 Adjustment bolt 3 Lock nut Align the pin holes so that the flat head pin is fully within the connection of the cam lever...

Страница 183: ...7 85 N m 683 20 866 75 kgf cm Inspect whether the brake is activated properly and then drive the machine 6 13 14 15 16 17 18 19 Inspection and Repair of Each Section Brake Inspection of Brake While traveling depress the brake pedal firmly to make sure that the brake is applied effectively Exploded View The brake is mounted to the front wheels and two calipers top and bottom are attached to each di...

Страница 184: ...her the surface of the disc is worn or bent Replace the pad if its thickness is 3 3 mm 0 13 in or less Apply brake grease dry lubricant lightly to the pivot pin 2 1 2 3 4 Bearing Replacement of The Kingpin Bearing If the bearing and O ring become damaged due to bearing wear insufficient lubrication or due to water penetration the kingpin will not move smoothly Inspect and replace the bearing and O...

Страница 185: ...ng the secured side The secured side of the shaft washer is the bearing inner diameter side and the secured side of the housing washer is the bearing outer diameter side 2 3 1 4 5 i4kd39 002 Replacement of The Kingpin Bearing_004 1 Shaft washer 2 Housing washer 3 Ball 4 Bearing inner diameter 5 Bearing outer diameter 3 4 A B B 1 2 zd6qac 006 Replacement of The Kingpin Bearing_005 1 Shaft washer 2 ...

Страница 186: ... pedal side Remove the cotter pin washer and flat head pin from the brake wire plate 4 5 1 3 2 uswwz5 001 Replacement of The Brake Wire_001 1 Brake wire plate 2 Cotter pin 3 Washer 4 Flat head pin 5 Brake wire 1 2 3 1 Remove the step cover 1 nfzln9 027 Replacement of The Brake Wire_002 1 Step cover Loosen the pedal side adjustment bolt lock nut and remove the brake wire from the wire mounting plat...

Страница 187: ...all bolts of the front tires to their specified torque Note Bolt tightening torque 67 85 N m 683 20 866 75 kgf cm Start the engine and drive to check the following Make sure that heat is not generated in the brake area Make sure that the left and right brakes are equally effective If the left and right brakes are not equally effective make adjustments to the brakes Reference Adjustment of Brake Pa...

Страница 188: ...e sliding hammer Slide the sliding hammer and remove the bushing 1 2 xpxxkw 008 Replacement of Bushing_003 1 Sliding hammer 2 Bushing 2 3 To install the bushing to the pivot use a driver and press fit the bushing with a press 2 1 4 3 xpxxkw 009 Replacement of Bushing_004 1 Bushing 2 Driver 3 Pivot 4 Press 4 LM551 Main Vehicle Page 6 44 Inspection and Repair of Each Section ...

Страница 189: ...it it is mounted on or the installation position 1 xpxxkw 001 Replacement of Bushing_001 1 Arm Prepare a bearing puller 1 xpxxkw 006 Replacement of Bushing_002 1 Bearing puller 1 Secure the arm on a vise table Note Protect the arm with waste cloth to prevent it becoming damaged 1 2 3 xpxxkw 002 Replacement of Bushing_003 1 Arm 2 Vice table 3 Waste cloth Install the bearing puller on the bushing 2 ...

Страница 190: ...shing 2 1 xpxxkw 004 Replacement of Bushing_005 1 Sliding hammer 2 Bushing To install the bushing to the arm use a driver and press fit the bushing with a press 2 3 4 1 xpxxkw 005 Replacement of Bushing_006 4 5 1 Arm 2 Bushing 3 Driver 4 Press LM551 Main Vehicle Page 6 46 Inspection and Repair of Each Section ...

Страница 191: ...Engine Related Page 7 2 Main Vehicle Related Page 7 5 Mower Unit Related Page 7 8 Troubleshooting LM551 Troubleshooting Page 7 1 ...

Страница 192: ...Insufficient battery capacity or loose terminals Electrical System Electrical Components General Inspection and Repair Battery Faulty ignition key switch Electrical System Electrical Components Key Switch Faulty starter relay Electrical System Electrical Components Relay Faulty starter motor Engine Maintenance Manual Overheating or damage to a moving part of the engine Engine Maintenance Manual Ma...

Страница 193: ...s activated left the seat without applying the parking brake Electrical System Measurement Interlock System Clogged air cleaner element This machine s Owner s Operating Manual Insufficient fuel Engine Handling Manual Air in the fuel system Engine Handling Manual Supply fuel and automatically air bleed by setting the ignition key switch to the ON position Clogged fuel filter This machine s Owner s ...

Страница 194: ...gine Maintenance Manual Faulty thermometer switch Engine Maintenance Manual Water temperature alarm buzzer related wiring faulty Inspect and repair the wire Charge lamp does not turn off Faulty alternator wire Inspect and repair the wire Faulty alternator Engine Maintenance Manual Engine oil pressure lamp does not turn off Insufficient amount of engine oil This machine s Owner s Operating Manual F...

Страница 195: ...ine s Owner s Operating Manual Pressure of the piston pump is not high enough Hydraulic system Measurement Traveling circuit Malfunction of the piston pump Hydraulic system Measurement Traveling circuit Replace the piston pump Malfunction of the wheel motor Hydraulic system Measurement Traveling circuit Replacement of the wheel motor Malfunction of the cross valve Hydraulic system Measurement Trav...

Страница 196: ... Repair of Each Section Brake Daily Maintenance Disk pad part has water dust oil etc Inspection of disc pad part Main Vehicle Inspection and Repair of Each Section Brake Removal and Installation of Brake Calipers Poor contact between pad and disc rotor during replacement of pads Main Vehicle Adjustment Adjustment of Brake Running in Brakes Excessive wear of pad support or cam lever Inspection of d...

Страница 197: ...raulic oil contamination presence of water air Hydraulic System General inspection Repair Hydraulic Oil Wrong viscosity of hydraulic oil This machine s Owner s Operating Manual Insufficient cooling of the hydraulic oil cooler This machine s Owner s Operating Manual Malfunction of the orbitrol Hydraulic System Measurement Steering Circuit Replacement of the orbitrol Malfunction of the steering cyli...

Страница 198: ...trical system Electrical components Proximity switch Malfunction of the terminal relay Electrical system Electrical components Terminal relay Malfunction of the reel rotation switch Electrical system Electrical components Rocker switch Malfunction of reel rotation solenoid valve Hydraulic system Measurement Reel rotation circuit Repair and replacement of reel rotation solenoid valve Malfunction of...

Страница 199: ...low Malfunction of gear pump Hydraulic system Measurement Reel rotation circuit Repair and replacement of the gear pump Engine rpm is slow This machine s Owner s Operating Manual Troubleshooting LM551 Troubleshooting Page 7 9 Mower Unit Related ...

Страница 200: ...LM551 Troubleshooting Page 7 10 Mower Unit Related ...

Страница 201: ...Specifications Page 8 2 Maintenance Schedule Page 8 4 List of Consumables Page 8 9 Reference LM551 Reference Page 8 1 ...

Страница 202: ...r for one machine 10 14 lb 4 6 kg Minimum turning radius LH52 Front wheel outer wheel outside 120 47 in 306 cm Outer side of unit 136 61 in 347 cm LH62 Front wheel outer wheel outside 120 47 in 306 cm Outer side of unit 136 61 in 347 cm LS62 66 Front wheel outer wheel outside 120 47 in 306 cm Outer side of unit 135 83 in 345 cm 139 37 in 354 cm Engine Model Kubota V1505 T E3B Type Vertical water c...

Страница 203: ...h 16 0 km h Reverse 4 97 mph 8 0 km h Speed Mechanical Efficiency 6 03 acres hour 7 46 mph x mowing width x 0 8 24 384 m2 h 12 0 km h x mowing width x 0 8 6 69 acres hour 7 46 mph x mowing width x 0 8 27 072 m2 h 12 0 km h x mowing width x 0 8 Maximum inclination for operation 15 degrees Tire size Front wheel 26 5 x 14 00 12 Rear wheel 20 x 12 00 10 Tire pneumatic pressure Front wheel 17 40 psi 12...

Страница 204: ...emarks 3 Check engine oil level and contamination 3 Check fuel level 3 Check coolant level 3 Check fan belt Check hydraulic oil level Check hydraulic hoses condition Moving part Check tire pressures and condition Check cover condition Check traveling pedal motion Check brake function Check brake wire Check brake pedal play Check oil or water leaks Check damaged parts Check tightening bolts and nut...

Страница 205: ...ns Grease and Lubricate all moving parts 3 Check fuel hoses and clamp bands 3 Check electrical wiring condition Damage defacement and joint looseness 50 hours first check every 100 hours thereafter Check looseness of wheel mounting bolt 50 hours first check every 100 hours thereafter 3 Change engine oil 50 hours first check every 100 hours thereafter 2 Replace oil filter cartridge 50 hours first c...

Страница 206: ...aining of water separator 3 Adjust fan belt tension 50 hours first change every100 hours thereafter 4 Check exterior of battery Check every 100 hours or every month whichever comes earlier 4 Clean exterior of battery Check every 100 hours or every month whichever comes earlier 4 Check mounting bracket of battery Check every 100 hours or every month whichever comes earlier 4 Check looseness and cor...

Страница 207: ... Check every 200 hours or every year whichever comes earlier 3 Check radiator hoses and clamp bands 2 Check intake air line air cleaner hose Check closed breather hoses Grease mower unit hydraulic motor shafts 3 Clean water separator 3 Replace fuel filter cartridge 3 Clean water jacket and radiator interior 3 Clean fuel tank interior 3 Replace fan belt Replace every 500 hours or 2 years whichever ...

Страница 208: ...ydraulic hoses Fixed part Adjust brake cables Replace brake cables Replace cables for traveling Replace brake pads 1 Consult your local Baroness Dealer or local KUBOTA Dealer for this service The items above 2 marked are registered as emission related critical parts by KUBOTA in the U S EPA nonroad emission regulation As the engine owner you are responsible for the performance of the required main...

Страница 209: ...Gear pump YCA62029540 Seal kit pump 1 Gear pump PLP20 10 5 10 5 3 9 6 3 K3254000010 Rear right wheel motor YSK000324 Seal kit 1 Wheel motor TGK310US081 K3292000030 Rear left wheel motor YSK000324 Seal kit 1 Wheel motor TGK310US080 K3292000040 Front right wheel motor YSK000324 Seal kit 1 Wheel motor TGK405US081 K3292000050 Front left wheel motor YSK000324 Seal kit 1 Wheel motor TGK405US080 K3292000...

Страница 210: ...2 Seal kit ISB block ASSY 1 Relay 4 Starter PF5H276 4125 1 Relay comp 1 Applicable vehicle SN 10028 Relay 7 Maintenance Relay 11 2 3 up down solenoid relay 4 Starter K3681000060 Relay CA1aF 12V N 5 2 3 Applicable vehicle SN 10028 Applicable vehicle SN10027 Black Relay 8 Unit position detection Relay 9 Overload detection Relay 10 4 down detection K3681000010 Relay CA1 DC12V N 3 Black Relay 1 Seat s...

Страница 211: ...C V in 2 Grey Reel rotation switch Traveling Working selector switch K3661000050 Rocker switch 2 Reel forward reverse switch K3661000070 Rocker switch red 1 Light switch K3662000110 National Switch WD1011 1 Key switch PF15248 6359 0 Starter switch ASSY with key 1 Mechanical brake YB98 31866 M30WM brake pad kit 2 Brake ASSY M30WM CW K1720000220 Brake ASSY M30WM CCW K1720000230 Traveling cable K1160...

Страница 212: ...LM551 Reference Page 8 12 List of Consumables ...

Страница 213: ...Head Office Tel 81 533 84 1390 Fax 81 533 84 1220 1 26 Miyuki cho Toyokawa city Aichi pref 442 8530 JAPAN LM551 SM GBZ 19K 00 S K ...

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