Maeda MC-174CRM Service Manual Download Page 1 | Manualshive

Page: 1 / 224

Maeda MC-174CRM Service Manual Download Page 1

101E-SM1002-00

SERVICE MANUAL

MINI-CRAWLER CRANE

Serial No. G0121 and up

The parts numbers and lists written in this service manual are the
references for the services such as disassembling and assembling.
Be  sure  to  ALWAYS  refer  to  the  latest  parts  catalog  (the  latest
information)  before  ordering  any  part,  since  the  parts  and  the
model  numbers  are  subject  to  change  during  the  endless
improvements and changes of our Machine.

1
2
3
...
»

Summary of Contents for MC-174CRM

Page 1: ...this service manual are the references for the services such as disassembling and assembling Be sure to ALWAYS refer to the latest parts catalog the latest information before ordering any part since t...

Page 2: ......

Page 3: ...ON PORTION 2 6 2 2 CRANE FIXED PORTION 2 8 2 3 TRAVELLING LINE 2 10 2 4 OUTRIGGER LINE 2 12 2 5 PUMP TANK DRAIN AND PILOT LINE 2 14 3 HYDRAULIC OIL TANK 2 18 3 1 SUCTION FILTER 2 20 3 2 RETURN FILTER...

Page 4: ...ICATIONS 2 64 12 2 INNER PARTS 2 66 13 HOOK BLOCK 2 68 13 1 HOOK BLOCK INSPECTION 2 70 14 BOOM SYSTEM 2 72 15 TELESCOPING AND DERRICKING CYLINDER 2 76 15 1 TELESCOPING CYLINDER 2 76 15 2 TELESCOPING C...

Page 5: ...3 OUTRIGGER OPENING DETECTOR 3 6 1 4 OUTRIGGER EXTENDING DETECTOR 3 8 1 5 BOOM STATE DETECTOR 3 10 1 6 LOAD DETECTOR 3 16 1 7 MOMENT LIMITER ACCESSORY 3 18 1 8 OVER UN WINDING DETECTOR 3 20 1 9 OVER H...

Page 6: ...Voltage Value from Each Sensor 3 56 16 9 L08 Loop Back Test 3 56 17 ERROR MESSAGES 3 57 18 TROUBLE SHOOTING 3 58 19 POINTS FOR INPUT VOLTAGE MEASUREMENT OF EACH SENSOR 3 60 REMOTE CONTROL 4 1 1 INITIA...

Page 7: ...NAL DRAWING 1 2 2 DIMENSIONAL DRAWING OF OUTRIGGERWIDTH 1 3 3 PRINCIPLE SPECIFICATION LIST 1 4 4 WORKING RADIUS LIFTING HEIGHT 1 5 5 TOTAL RATED LOAD CHART 1 6 6 STANDARD PRESSURE AND OPERATING TIME C...

Page 8: ...1 2 1 SPECIFICATION DIMENSIONAL DRAWING...

Page 9: ...1 3 2 DIMENSIONAL DRAWING OF OUTRIGGER WIDTH...

Page 10: ...uction gear Worm Reduction spur gear Brake Worm selflock Slewing angle speed 360 deg continuous 2rpm Outrigger system Method 1st stage with flexible stay damper 2nd stage manual pull out hydraulic cyl...

Page 11: ...1 5 4 WORKING RADIUS AND LIFTING HEIGHT...

Page 12: ...3 or less 1320 1 7 or less 770 1 3 1320 1 3 1320 1 5 1120 2 0 700 1 55 1090 1 5 1120 2 0 820 2 5 660 2 0 820 2 5 670 2 8 580 2 5 670 3 0 530 3 0 530 2 69 580 3 5 420 3 5 410 3 93 370 4 0 330 4 5 270 5...

Page 13: ...2 0 820 2 5 670 2 8 580 2 5 670 3 0 530 3 0 530 2 69 580 3 5 420 3 5 410 3 93 370 4 0 330 4 5 270 5 17 220 Outrigger Extended to Other than Maximum 1 83m BOOM 2 97m BOOM 4 21m BOOM 5 45m BOOM Working...

Page 14: ...0 2 0 430 2 5 430 2 8 430 2 5 430 3 0 430 3 0 430 2 69 430 3 5 420 3 5 410 3 93 370 4 0 330 4 5 270 5 17 220 Outrigger Extended to Other than Maximum 1 83m BOOM 2 97m BOOM 4 21m BOOM 5 45m BOOM Workin...

Page 15: ...ravelling control valve Operating time sec Boom Derricking 0 80 deg Raise 4 5 1 8 4 1 Lower 16 3 1 13 2 1 Hoisting 2m 2 boom Raise 3 3 1 5 3 1 Lower 5 2 1 5 4 1 Boom Telescoping No 1 boom to No 4 boom...

Page 16: ...1 10 7 POWER TRAIN DRAWING...

Page 17: ...34 8 TRAVELLING MOTOR 2 38 9 CRANE CONTROL VALVE 2 46 10 OUTRIGGER CONTROL VALVE 2 58 11 TRAVELLING SPEED SELECT VALVE 2 46 12 ROTARY JOINT 2 64 13 HOOK BLOCK 2 68 14 BOOM 2 72 15 TELESCOPING AND DERR...

Page 18: ...2 2...

Page 19: ...2 3 1 HYDRAULIC CERCUIT DIAGRAM...

Page 20: ...2 4...

Page 21: ...2 5...

Page 22: ...2 6 2 HYDRAULIC OIL PIPING 2 1 CRANE ROTATE PORTION...

Page 23: ...6 WDr 22779 93030 22611 14230 D Winch Motor Drain NO DESCRIPTION Q TY NOTICE 1 Long Connector 3 8 2 Parts No 349 4412500 2 Hydraulic Oil Hose TA Boom extending 1 NN173 04 820L 6007 10051 Bindspiral t...

Page 24: ...2 8 2 2 CRANE FIXED PORTION...

Page 25: ...Slewing Motor Counter clockwise B4 1 22611 11035 17 SAL 22781 83108 10 22611 10435 B Clockwise NO DESCRIPTION Q TY NOTICE 1 Connector 6 1067 06 04 2 Connector 1 1067 06 3 Connector 3 8 1 Parts No 349...

Page 26: ...2 10 2 3 TRAVELLING LINE...

Page 27: ...2 11 NO DESCRIPTION Q TY NOTICE 1 Elbow 45 deg 2 1072 06 04 2 Elbow 45 deg 2 1072 06 04 3 Travelling Hose A 2 NV210 6 300L1005 0590 4 Travel ling Hose B 2 NV210 6 230L1005 0590...

Page 28: ...2 12 2 4 OUTRIGGER LINE...

Page 29: ...B3 A Out A4 B Outrigger 4 Cylinder In B4 A Out NO DESCRIPTION Q TY NOTICE 1 Connector 8 LLM UR 8X3 8WithO ring 2 Terminal 4 Parts No 350 4390100 3 Sems Bolt 4 M10X1 5X25L 4 Outrigger pipe RRA 1 Parts...

Page 30: ...2 14 2 5 PUMP TANK DRAIN AND PILOT LINE...

Page 31: ...rn U R 18 22611 10560 41 T3 22713 A6040 14 22611 12060 Drain Line ConnectionTable Equipment Port Connector Hose Connector Port Connecting to Equipment No Parts No No Mark Parts No No Parts No Hydrauli...

Page 32: ...M8X1 25X20L Plateing 28 PlaneWasher 2 M8 Plateing 29 SpringWasher 2 M8 Plateing 30 Connector 1 1067 04 31 Elbow 90 deg WithSeat 1 1071 04 06 32 Connector 2 1067 04 33 Connector 2 1067 02 34 Hydraulic...

Page 33: ...2 17...

Page 34: ...2 18 3 HYDRAULIC OIL TANK...

Page 35: ...pringWasher 4 M5 Plateing 14 PlaneWasher 4 M5 Plateing 15 Packing 1 Parts No 329 4286900 16 Liquid Packing Three Bond 12078 17 Bolt 8 M6X1 0X16L Plateing 18 SpringWasher 8 M6 Plateing 19 PlaneWasher 8...

Page 36: ...ER NO DESCRIPTION Q TY NOTICE 1 Filter 1 150 mesh 2 End Plate A 1 3 End Plate B 1 4 Inner Tube 1 5 Rod 1 L 30mm 6 Nut 1 7 Holder 1 8 Spring 1 Specifications Model SFR 08 Filtration Precision 150 mesh...

Page 37: ...3 Element 1 30 4 Plate 1 0 8t 5 Valve Holder 1 6 Valve Assembly 1 7 StopperScrew 1 M5X12 Specifications Used Oil ISO VG32 46 Flow Capacity 25L min Max 40L min Oil Temperature 20 C to 120 C Filtration...

Page 38: ...2 22 4 RETURN MANIFOLD BLOCK...

Page 39: ...clockwise Viewed from Output shaft end Type of Fuel Lead free gasoline Fuel Tank Capacity 6 litres Grade of Lubricating Oil API Service Category SD or better SAE30 At ColdWeather SAE20 Engine Oil Pan...

Page 40: ...2 24 5 2 ENGINE EXTERIOR VIEW...

Page 41: ...1J Tool Set Notshown 1 2 PowerUnit Base 1 3 Exhaust Pipe 1 4 Muffler Bracket 1 5 Bolt 4 M10X1 75 X45L Plating 6 Bolt 2 M8X 1 25 X25L Plating 7 Bolt 6 M14X2 0 X35L Plating 8 Flange Nut 6 M8X 1 25 Plati...

Page 42: ...2 26 5 3 EACH SECTION NAME...

Page 43: ...ywheel 3 Crankshaft 13 ValveStem Seal 23 ChargingCoil 4 Camshaft 14 Intake Exhaust valve 24 Bearing 5 Blancer Shaft 15 Rocker Arm 25 Oil Seal 6 Connecting Rod 16 Pivot Nut 26 Oil Gauge 7 Piston 17 Loc...

Page 44: ...1 20 59 MPa P2 20 59 MPa Revolution Rated 1800 min 1 Max 2000 min 1 Suction Pressure 0 02 to 0 04 MPa Recommended Oil ISO VG 32 46 Operating Oil Temperature 60 C Operating Oil Temperature Range 20 to...

Page 45: ...9 Skipped No 50 Skipped No 9 Barrel Holder 1 30 Ball Bearing 1 51 Plug 1 10 Swash Plate 1 31 Needle Bearing 1 52 SpringWasher 5 11 Needle 3 32 Oil Seal 1 53 Skipped No 12 Oscillation Pin 2 33 Spring 4...

Page 46: ...sting Condition Remarks Recommended Oil ISO VG 32 46 Input Torque 33 34 N m Oil Temperature 50 5 C Revolution 1800 min 1 Pump Horsepower Consumption 7 28 PS Revolution Direction Clockwise Pump Absorpt...

Page 47: ...owfigure have onlyone intake and dischargeslotrespectively By contrast the valve plate of this pump has two outer 1 and inner 2 slots for discharge respectively Piston chambers in cylinder barrel will...

Page 48: ...the ball on the rear side of the pump Load F1 from the piston side is located inthe directionshown in the figure and generates aright turnmoment to theswash plate On the other hand a spring for settin...

Page 49: ...tion rate Repair or replace coupling Repair or replace pump Abnormal noise or vibration Cavitation Air or water mixture to hydraulic oil Clogged or choked suction pipe Damage to staking fit of piston...

Page 50: ...ward PF3 8 CO Crane Control Valve P Port PF1 2 B2 Left Travelling Motor B Port Reverse PF3 8 Specifications Max Flow Capacity P1 P2 15 Litres min CO 30 Litres min Leakage from inside At 9 8 MPa 50 55...

Page 51: ...ring Holder 4 18 Inlet Housing 1 31 O Ring 1A P12 4 6 Compression Spring 2 19 Plug 2 32 O Ring 1B P9 2 7 Seal Holder 4 20 Plunger Housing 2 33 O Ring 1B P10 2 8 Back up Ring 4 21 Open Spool 2 34 O Rin...

Page 52: ...such as rust corrosion deform and or breakage Replace Seal of Spool area Oil leakage to exterior Seal and Holder rust corrosion and or deform Repair or replace Repair or replace Main relief valve Por...

Page 53: ...peration Overhaul of total circuit may be required as well as exchanging hydraulic oil Measure spool diameter and verify for replacing Measure roundness of spool and repair or replace as required Loos...

Page 54: ...n Ratio 1 36 96 Operating Oil Temperature 60 to 100 C Specifications of Hydraulic Motor Capacity 9 5 4 7 cm 3 rev Filtering 10 Max Common Use Pressure 20 6 MPa 210 kgf cm 2 Recommended Gear Oil ISO VG...

Page 55: ...2 39 8 2 INNER PARTS...

Page 56: ...2 40 8 3 BASICS OF FUNCTIONALITY...

Page 57: ...S2 is connected to the hydraulic motor output shaft with spline and rotation of the gear S2 is reduced a stage among the gears S2 b2 and a2 The one stage reduced rotation is reduced two stages among t...

Page 58: ...lve is supplied to the valve plate 5 The pressurized oil if supplied to Port A flows in the cylinder port in the cylinder barrel 4 and pushes the piston 6 This press force is converted into torque thr...

Page 59: ...barrel making swash plate angle capacity maximum When dual speed lever is shifted to high hydraulic pressure is led to control room through high speed spool and control piston moves until swash plate...

Page 60: ...supplied from Port B the above parts operate in reverse and the hydraulic motor rotates in reverse When the pressurized oil from Port A is interrupted from the pressurized state the spool 2 moved to t...

Page 61: ...6 and 7 fixed similarly to body2 5 As a result friction force between the disk plate 4 and the steel plate 6 7 disables the cylinder barrel 3 to rotate and fixes the hydraulic motor inlet axis See Fig...

Page 62: ...id Valve P1 Port Out PF3 8 T Return PF1 2 B3 Outrigger 1 Solenoid Valve P2 Port In PF3 8 A1 Outrigger 3 Solenoid Valve P1 Port Out PF3 8 A4 Outrigger 2 Solenoid Valve P1 Port Out PF3 8 B1 Outrigger 3...

Page 63: ...city 50 Littre min Relief Setting Pressure 2 94 to 24 5 MPa 30 to 250 kgf cm 2 Sequence Valve Setting Pressure 1 27 to 1 67 MPa 13 to 17 kgf cm 2 Pressure Reducing Valve Setting Pressure 1 18 to 1 57...

Page 64: ...2 48 9 2 INNER PARTS...

Page 65: ...PF3 8 39 2 to 49 0 M18 39 2 to 49 0 M24 58 8 to 68 6 Socket Head Plug GPM1 32 1 47 to 1 96 Coat the LOCKTIGHT 242 NPT1 16 9 81 to 11 8 NO DESCRIPTION Q TY 1 InletSection 1 2 Block Outrigger 1 3 4 1 Sp...

Page 66: ...Derricking Cylinder Head Boom Lowering PF3 8 A3 TelescopingcylinderBottom Boom Extending PF3 8 B1 Derricking Cylinder Bottom Boom Raising PF3 8 B3 Telescopingcylinder Head Boom Retracting PF3 8 A2 Wi...

Page 67: ...tion at 20 C Sol No 1 to 8 0 91 A Approx 11W For actuator drive control Sol No 11 and 12 Max 1 7 A Approx 20 4W For controlling flow control valve and accelerator positioner Excitation rating Continuo...

Page 68: ...d of parallel circuits more than one solenoid selector valve can be operated at the same time In case of simultaneous operation the actuator with the lowest load pressure starts operating first This v...

Page 69: ...he pump to the pressure reducing valve 2 is open The oil when supplied from the pump pushes to open the sequence valve 1 flows to the center bypass line and does not operate the downstream selector va...

Page 70: ...ach selector valve is at the neutral position Pressurized oil from the pump flows through the center bypass lines of the control valve and of each selector valve and the tank line and returns to the t...

Page 71: ...ide piston 3 and the secondary side piston 4 are of the same diameter the differential pressure between the front and the rear of the detection valve 1 affects the flow control spool 2 in the right di...

Page 72: ...detection valve 1 to the parallel line decreases by that the differential pressure between the front and the rear of the detection valve 1 reduces and the rightward force which affects the flow contr...

Page 73: ...energized 1 Pressure Reducing valve Spool 2 Spool 5 Return Spring For the pilot pressure primary pressure from the pilot line the pressure reducing valve spool 1 closes the line to the secondary side...

Page 74: ...the socket 5 So the pressures in the pilot chambers a and b become equal the drain pressure and no pressure occurs that moves the spool 1 Since the spool is of the all port block type the lines betwee...

Page 75: ...ore the differential pressure between the pilot pressure and the drain pressure affects the pilot piston 7 and moves the spool 1 to the left As the spool moves the center bypass line e is closed but t...

Page 76: ...essure of the secondary pressure The pressure reducing valve spool 1 moves until the secondary pressure balance with the pressure reducing valve spring 2 and throttles the line a of the pressure reduc...

Page 77: ...g caught to the spool Breakage of oilfilm between spool and body due to abnormal rise of oil temperature Wear of spool Lubrication failure due to oil deterioration Bent spool Distortion of the whole v...

Page 78: ...TION Q TY NO DESCRIPTION Q TY 1 Plug 1 5 Solenoid 1 9 Rivet 2 2 Body 1 6 NamePlate 1 10 O ring 1A P10 1 3 Compression Spring 1 7 Skipped No 11 O ring 1B P16 1 4 Spool 1 8 Socket Head Bolt M5X10 2 Spec...

Page 79: ...HOOTING Each Item shown in the table below indicates only individual problem however troubles may be caused by multiple problems in many cases It is advisable to check one by one for efficient trouble...

Page 80: ...2 64 12 ROTARY JOINT 12 1 EXTERIOR VIEW AND SPECIFICATIONS...

Page 81: ...CraneControl Valve Port A1 PF3 8 DA DA Hose Derricking CylinderBottom Port Boom Raising PF3 8 DA DB Hose Crane Control Valve Port A3 PF3 8 DB DB Hose Derricking Cylinder Head Port Boom Lowering PF3 8...

Page 82: ...2 66 12 2 INNER PARTS...

Page 83: ...2 Plate 1 9 Skipped No 16 O Ring 1B P10 7 3 Hub 1 10 Hex Socket Head Bolt M6X16 4 17 O Ring 1B G65 8 4 Shaft 1 11 Hex Socket Head Bolt M8X70 4 18 O Ring AS568 229 2 5 Body 1 12 Hex Socket Head Bolt M...

Page 84: ...2 68 13 HOOK BLOCK...

Page 85: ...2 5 Hook 1 6 Hook Nut 1 7 Sheave Collar 2 3L 8 Weight 1 9 Wire Rope Latch 1 10 Wire Rope Latch Spring 1 11 Pin 1 12 Thrust Bearing 1 51206 13 Thrust Bearing 1 5 X45L 14 CotterPin 1 2X12L Plating 15 B...

Page 86: ...e that the mounting is secure and that no damage exists Retighten if loose Replace if damaged 4 Check the hook nut and make sure that the mounting is secure and that no damage exists Retighten if loos...

Page 87: ...2 71...

Page 88: ...2 72 14 BOOM SYSTEM...

Page 89: ...linder HeadPin 1 22 Idler Shaft 2 23 Telescoping Cylinder Trunnion Pin 2 24 No 3 Trunnion Pin 2 25 Telescopic Guide Roller Pin 1 26 Sheave Pin For Boom Extending 1 27 Point Pin 1 28 Sheave Collar ForB...

Page 90: ...pringWasher 18 M6 Plating 61 SpringWasher 3 M8 Plating 62 SpringWasher 15 M10 Plating 63 PlaneWasher 1 M8 Plating 64 PlaneWasher 4 M10 Plating 65 Snap Ring 10 ForShaft C 12 66 Snap Ring 2 ForShaft C 3...

Page 91: ...2 75...

Page 92: ...2 76 15 TELESCOPING AND DERRICKING CYLINDER 15 1 TELESCOPING CYLINDER...

Page 93: ...No 1 Cylinder 1 26 Screw No 1 Cylinder 2 M6X6L Tightening Torque 9 8 N m Coatthe LOCKTIGHT 262 27 Plug Forshipping No 1 Cylinder 5 R1 8 Tightening Torque 9 8 N m 28 Plug Forshipping No 1 Cylinder 3 R...

Page 94: ...st Pressure When extending 30 9 MPa 315 kgf cm 2 When retracting 30 9 MPa 315 kgf cm 2 No 2 Telescoping Cylinder Specifications Cylinder Bore x Rod O D Stroke 55 40 1240 Normal Load When extending 48...

Page 95: ...2 79 15 2 TELESCOPING CYLINDER HYDRAULIC CIRCUIT SYSTEM...

Page 96: ...heck Valve Cracking Pressure 0 098 MPa 1 kgf cm 2 Operating Temperature Range 10 to 80 C 15 3 1 TROUBLE SHOOTING Disorders Cause Counter action Telescoping Derricking Cylinders retract while hoisting...

Page 97: ...2 81 15 3 2 FUNCTION 1 When Neutral 2 When Extending 3 When Retracting...

Page 98: ...Capacity Less than 0 05 cc min Apply 20 6 MPa 210 kgf cm 2 From Port B Pilot Pressure 1 18 0 3 MPa 12 3 kgf cm 2 At Valve Opened Check Valve Cracking Pressure 2 45 MPa 25 kgf cm 2 Operating Force 0 6...

Page 99: ...E FOR TELESCOPING CYLINDER Specifications Rated Flow Capacity 50 L min Pilot Pressure 1 18 0 3 MPa 12 3 kgf cm 2 At Valve Opened Pressure Loss B to A Less than 9 8 MPa 100 kgf cm 2 Check Valve Crackin...

Page 100: ...2 84 15 6 LEFT SIDE DERRICKING CYLINDER...

Page 101: ...4 R1 4 25 Plug Forshipping 2 R3 8 Specifications Cylinder Bore x Rod O D Stroke 55 mm X 35 mm 585mm Normal Load When extending 48 9 kN At 20 6 MPa 4 9 ton At 210 kgf cm 2 When retracting 29 1 kN At 2...

Page 102: ...2 86 15 7 RIGHT SIDE DERRICKING CYLINDER...

Page 103: ...Cylinder Bore x Rod O D Stroke 55 mm X 35 mm 585mm Normal Load When extending 48 9 kN At 20 6 MPa 4 9 ton At 210 kgf cm 2 When retracting 29 1 kN At 20 6 MPa 2 9 ton At 210 kgf cm 2 Test Pressure When...

Page 104: ...2 88 16 WINCH SYSTEM 16 1 EXTERIOR VIEW OF WINCH UNIT...

Page 105: ...ple 1 A M6F 18 Reamer Bolt 1 M12X39L Tightening Torque 42 6 to 56 4 N m 19 Socket Head Bolt 4 M6X1 0X16L 20 Socket Head Bolt 8 M8X1 25X18L Tightening Torque 26 8 to 36 2 N m 21 Socket Head Bolt 5 M6X1...

Page 106: ...2 90 16 2 MECHANICAL BRAKE INNER PAERTS AND SPECIFICATIONS...

Page 107: ...22 Roller Bearing 1 6006 23 Roller Bearing 1 6003 24 Oil Seal 1 TCN406211 25 Key 2 7X7X14 26 Plug 2 PT1 2 27 Socket Head Plug 1 PT1 8 28 Socket Head Screw 1 M6X1 0X10 29 Bolt 10 M8X1 25X30 30 SpringW...

Page 108: ...r Stroke 14 5 cm 3 rev Rated Pressure 20 6 MPa 210 kgf cm 2 Sage Pressure 24 5 MPa 250 kgf cm 2 Max Output Revolution 3000 min 1 Drain Circuit Pressure Common Less than 0 1 MPa 1 kgf cm 2 Peak Less th...

Page 109: ...2 93...

Page 110: ...2 94 17 SLEWING SYSTEM 17 1 EXTERIOR VIEW...

Page 111: ...tor refill thelubricatingoil intotheoil fillertospecificationamount 17 1 1 SLEWING BEARING WOBBLE LIMIT TOLERANCE In case the clearance is excessive when the bearing receives the momentum load the osc...

Page 112: ...er 1 6 Bearing Retainer 1 P1 Taper Roller Bearing 2 32006 P2 Roller Bearing 1 63132 P3 Roller Bearing 1 6006 P4 Oil Seal 1 LSRD406211 P5 Bolt 2 M8X16 P6 Socket Head Bolt 5 M6X16 P7 SpringWasher 2 M8 P...

Page 113: ...Motor Port A Clockwise Port B Counterclockwise Specifications Model J 32EBE B Capacity per Stroke 31 6 cc rev Rated revolution 661 min 1 Rated Torque 39 N m 4 0 kgf m Max Torque 49 N m 5 0 kgf m Rated...

Page 114: ...2 98 18 OUTRIGGER SYSTEM 18 1 EXTERIOR VIEW OF No 1 OUTRIGGER...

Page 115: ...Pin 1 1 19 Snap Pin 2 1 20 Ring 8 21 Shim 1 6t AR 22 Shim 1 0t AR 23 Shim 0 5t AR 24 Chain 4 SM16L 130L 25 Bushing 2 MB3020DU 26 StopperBolt 1 UNAH No 6 L 20 mm 27 StopperBolt 1 UNAH No 6 L 40 mm 28 H...

Page 116: ...2 100 18 2 EXTERIOR VIEW OF No 2 OUTRIGGER...

Page 117: ...Pin 1 1 19 Snap Pin 2 1 20 Ring 8 21 Shim 1 6t AR 22 Shim 1 0t AR 23 Shim 0 5t AR 24 Chain 4 SM16L 130L 25 Bushing 2 MB3020DU 26 StopperBolt 1 UNAH No 6 L 20 mm 27 StopperBolt 1 UNAH No 6 L 40 mm 28...

Page 118: ...2 102 18 3 EXTERIOR VIEW OF No 3 OUTRIGGER...

Page 119: ...Pin 1 1 19 Snap Pin 2 1 20 Ring 8 21 Shim 1 6t AR 22 Shim 1 0t AR 23 Shim 0 5t AR 24 Chain 4 SM16L 130L 25 Bushing 2 MB3020DU 26 StopperBolt 1 UNAH No 6 L 20 mm 27 StopperBolt 1 UNAH No 6 L 40 mm 28...

Page 120: ...2 104 18 4 EXTERIOR VIEW OF No 4 OUTRIGGER...

Page 121: ...Pin 1 1 19 Snap Pin 2 1 20 Ring 8 21 Shim 1 6t AR 22 Shim 1 0t AR 23 Shim 0 5t AR 24 Chain 4 SM16L 130L 25 Bushing 2 MB3020DU 26 StopperBolt 1 UNAH No 6 L 20 mm 27 StopperBolt 1 UNAH No 6 L 40 mm 28...

Page 122: ...2 106 19 OUTRIGGER CYLINDER 19 1 EXTERIOR VIEW AND SPECIFICATIONS...

Page 123: ...gf cm 2 When retracting 59 4 kN At 20 6 MPa 6 0 ton At 210 kgf cm 2 Test Pressure When extending 30 9 MPa 315 kgf kgf cm 2 When retracting 30 9 MPa 315 kgf kgf cm 2 Natural retracting range of cylinde...

Page 124: ...2 108 19 2 INNER PARTS...

Page 125: ...Piston 1 Tightening Torque 392 3 N m 13 Piston Ring 1 SPGW 70 14 Wear Ring 2 70 65 10 15 O RING 1 1B P26 16 Set Screw 1 M6X12L Tightening Torque 9 8 N m 17 Double Pilot Check Valve 1 Parts No 103S928...

Page 126: ...Pressure 41 2 MPa 420 kgf cm 2 Max Flow Capacity 10 L min Allowable Leakage Level Less than 0 05 L min Apply 17 2 MPa 175 kgf cm 2 From Port A2 and B2 Check Valve Cracking Pressure 0 49 MPa 5 kgf cm 2...

Page 127: ...2 111...

Page 128: ...2 112 20 ASSEMBLY AND DISASSEMBLY OF BOOM...

Page 129: ...72 Take care not to let end of the cord into cord reel 72 6 Take off 2 telecoping cylinder hoses and remove 2 each of elbow 10 and long connector 11 7 Remove two snap rings 12 and extract telescoping...

Page 130: ...th left and right side then remove 2 side plate stopper plates 36 and side slide plates 37 respectively on both left and right side 17 loosen hexagonal nut 38 M10 and remove hexagonal hole screw 39 M1...

Page 131: ...move 2 side plate stopper plates 51 and side slide plates 52 respectively on both left and right side 23 loosen hexagonal nut 53 M10 and remove hexagonal hole screw 54 M10 X 30L then pull out No 3 and...

Page 132: ...ashers 62 on both left and right side then remove 2 side plate stopper plates 63 and side slide plates 64 respectively on both left and right side 28 Loosen hexagonal nut 65 M10 and remove hexagonal h...

Page 133: ...ten 2 bended plates 70 on No 4 boom when removing this retraction wire 44 The boom disassembly ends here Assembly procedure Assemble by following disassembly procedure in reverse Caution Make sure tha...

Page 134: ...2 118...

Page 135: ...2 119 21 ELECTRIC CIRCUIT DIAGRAM Note AversionofthiselectricalcircuitdiagramenlargedtoA2sizeispreparedasanappendix RefertotheseparateA2sizecircuitdiagramfordetails...

Page 136: ...2 120 22 ELECTRIC SYSTEM DRAWING...

Page 137: ...Plating 4 8T 42 Bolt 6 M6X1 0X14L Plating 4 8T 13 SpringWasher 2 M6 Plating 43 SpringWasher 6 M6 Plating 14 PlaneWasher 2 M6 Plating 44 PlaneWasher 6 M6 Plating 15 ConnectorBracket L 1 45 Clamp 3 16 B...

Page 138: ...2 122...

Page 139: ...T 3 30 7 INPUT OUTPUT 3 32 8 DISPLAYS 3 34 9 SWITCHES 3 36 10 DISPLAY UNIT DETAIL OF EACH SEGMENT 3 38 11 START UP SEQUENCE 3 39 12 MOMENT LIMITER FUNCTIONS 3 39 13 DISPLAY OF SPECIFIC INDICATORS 3 40...

Page 140: ...3 2 1 MOMENT LIMITER PARTS 1 1 DISPLAY UNIT AND CONVERTER...

Page 141: ...3 3 NO DESCRIPTION Q TY NOTICE 1 Moment Limiter Display 1 2 Moment Limiter Converter 1 3 Screw WithWasher 8 M4X0 7X10L Plating 4 Clamp 2 RS 8000 5 Moment Limiter Converter Cover 1...

Page 142: ...3 4 1 2 OUTRIGGER POSITION DETECTOR...

Page 143: ...1 4 Limit Switch Bracket 4 1 5 Limit Switch Mounting Plate 1 6 Limit Switch 1 2 7 Limit Switch 2 1 8 Limit Switch 3 1 9 Bolt 8 M8X1 25X16L Plating 10 SpringWasher 8 M8 Plating 11 PlaneWasher 8 M8 Pla...

Page 144: ...3 6 1 3 OUTRIGGER OPENING DETECTOR...

Page 145: ...ESCRIPTION Q TY NOTICE 1 Switch Bracket 4 2 Proximity Switch 4 3 Bolt 8 M6X1 0X12L Plating 4 SpringWasher 8 M6 Plating 5 ConnectorCover 4 M6X6L Plating 6 Bolt 8 M6X1 0X35L Plating 7 SpringWasher 8 M6...

Page 146: ...3 8 1 4 OUTRIGGER EXTENDING DETECTOR...

Page 147: ...3 9 NO DESCRIPTION Q TY NOTICE 1 Cover A 2 2 Cover B 2 3 Limit Switch 4 4 Bolt 8 M6X1 0X12L Plating 5 SpringWasher 8 M6 Plating 6 Bolt 8 M5X0 8X16L Plating 7 SpringWasher 8 M5 Plating...

Page 148: ...3 10 1 5 BOOM STATE DETECTOR...

Page 149: ...Washer 2 M6 Plating 9 Socket Head Bolt 4 M5X0 8X16L 10 SpringWasher 4 M5 Plating 11 Bolt 4 M6X1 0X35L Plating 12 SpringWasher 4 M6 Plating 13 Bolt 5 M6X1 0X14L Plating 14 Nut 1 M6X1 0 Plating 15 Sprin...

Page 150: ...3 12 1 5 1 ANGLE SENSOR...

Page 151: ...ectrical Angle 340 2 3 Total Resistance 1 k ohm 20 Index Point Output to calibrate to 15 3 at the condition of above chart 0 Insulation Resistance 200 M ohm minimum DC 500 V Withstand Voltage AC500V 1...

Page 152: ...3 14 1 5 2 LENGTH SENSOR...

Page 153: ...tact Assembly 1 6 Potentiometer Case 1 7 Packing 1 8 O ring 1 9 Bracket 1 10 Potentiometer 1 11 NIPOSEAL Seal Connector 1 12 Gear 1 13 Fasten Terminal male 1 14 Sleeve 1 15 Fasten Terminal female 1 16...

Page 154: ...Pressure Sensor 2 2 Cover Bracket 1 3 Bolt 2 M8X1 25X14L Plating 4 SpringWasher 2 M8 Plating 5 Pressure SensorCover 1 6 Bolt 2 M6X1 0X12L Plating 7 SpringWasher 2 M6 Plating 8 ConnectorCover B 1 9 Bol...

Page 155: ...emperature Coefficient origin 0 1 F S C Temperature Coefficient span 0 1 F S C Temperature Compensation Range 20 to 70 C Operation Temperature Range 20 to 70 C Stand by Temperature Range 20 to 80 C Vi...

Page 156: ...3 18 1 7 MOMENT LIMITER ACCESSORY...

Page 157: ...SpringWasher 4 M5 Plating 12 PlaneWasher 4 M5 Plating 13 Working Status LampBracket 1 14 Bolt 2 M8X1 25X25L Plating 15 SpringWasher 2 M8 Plating 16 PlaneWasher 2 M8 Plating 17 Working Status Lamp Gre...

Page 158: ...3 20 1 8 OVER UN WINDING DETECTOR...

Page 159: ...ing Spring 1 14 Ball Bearing 2 6001ZZ 15 Bushing 2 16 Parallel Key 1 5X5X16L 17 Bolt 3 M8X1 25X25L Plating 18 Bolt WithWasher 3 M6X1 0X12L Plating 19 Socket Head Bolt 2 M5X0 8X20L Plating 20 Nylon Nut...

Page 160: ...3 22 1 9 OVER HOISTING STOP SYSTEM...

Page 161: ...kipped 10 Limit Switch Assembly 3 11 Socket Head Bolt 8 M5X0 8X16L Plating 12 No skipped 13 Bolt 2 M6X1 0X20L Plating 14 No skipped 15 No skipped 16 Nut 2 M6X1 0 Plating 17 SpringWasher 3 M6 Plating 1...

Page 162: ...tch Thecontact of the over hoist detectorswitch opens and thesignal thereof enters themoment limiter computer andcauses the hook raising and boom extending operations to stop At the same time the lamp...

Page 163: ...ype of Moment Limiter Automatic Cut Out Crane Rated Load 0 to 1 72 ton Pressure Range 0 to 20 6 MPa 0 to 210kg cm 2 Power Supply DC 12V DC 10V 15V Max Power Dissipation Display Panel 0 8 A at DC 12V C...

Page 164: ...3 26 3 EXTERNAL VIEW OF MOMENT LIMITER 3 1 DISPLAY UNIT...

Page 165: ...3 27 3 2 CONVERTER...

Page 166: ...3 28 4 SYSTEM DIAGRAM...

Page 167: ...3 29 5 CONNECTOR DIAGRAM...

Page 168: ...tact 3 Boom Angle Lower Limit input 1a contact 4 Serial Communication output 5 12V 6 0V 7 Over Un winding Limit Switch input Optional 8 Not used 2 SENSOR CONNECTOR Model RM21WTR 15S HIROSE in Japan Co...

Page 169: ...24 31PE 059 for Japan Germany Pin No Signal Pin No Signal 1 Outrigger 1 Extending input Max 11 Working Status Lamp Red output 2 Outrigger 2 Extending input Max 12 Working Status Lamp Yellow output 3...

Page 170: ...ut 1 Voltage output Transistor Spec DC12V 50mA Max See Note 2 Working Status Lamp Red output 1 B Contact output Relay output Contact Capacity 12V 0 5A Max See Note 3 Working Status Lamp Yellow output...

Page 171: ...3 33 Note 1 Photo Coupler input Note 2 Voltage output Note 3 Relay output Note 4 Open Collector output...

Page 172: ...3 34 8 DISPLAYS...

Page 173: ...y less than 70 LED orange LED lights when Load Capacity is less than 70 12 Load Capacity 70 to less than 100 LED orange LED lights when Load Capacity is 70 or more and less than 100 13 Load Capacity 1...

Page 174: ...per Limit Push the Switch and hold for two seconds or more shall set the current angle as the upper limit Push the Switch and hold for five seconds or more shall cancel the current value One push for...

Page 175: ...cel the Switch 6 Cancel Switch All the upper and lower limits shall be canceled when this Cancel Switch and Check Switch are push and held for five seconds or more simultaneously 7 Check Switch Each o...

Page 176: ...ive when Boom Angle Upper Limit Detector input is ON Boom Angle Upper Limit Detector output shall be OFF Open 4 Boom Angle Lower Limit Detector input Controls as below shall be active when Boom Angle...

Page 177: ...s up Load Capacityless than 70 2 When Load Capacity is more than 70 and less than 100 LED lights up Load Capacity70 or more and less than 100 3 When Load Capacity is 100 or more LED lights up Load Cap...

Page 178: ...fter so converted and rounded off to one decimal place XX X 4 LIFTING HEIGHT INDICATOR Lifting Height shall be displayed in unit of Meter after so converted and rounded off to one decimal place XX X 5...

Page 179: ...adius Working Radius Upper Limit 1 3m controls as belowshall beactive WorkingRadius UpperLimit LED shall flash Pre warning outputshall be ON Buzzer outputshall be ON withintermission At WorkingRadius...

Page 180: ...witches 1 Fall Mode Selector Switch 2 Lifting Height Upper Limit Switch 3 Boom Angle Upper Limit Switch 4 Boom Angle Lower Limit Switch 5 Check Switch LED Indicators 6 Wire Falls LED 7 Outriggers Exte...

Page 181: ...d Span Load value Complete Note Calibration Mode shall turn output unconditionally ON of Outriggers Setting Outriggers Stowing Over Hoist and Working Status Red Lamp Other controls shall not output an...

Page 182: ...eight Indicator display LEn and oFF respectively Set the figures in the Boom Angle Indicator to the value of Boom length at fully retracted condition by pushing Boom Angle Upper Limit Switch 3 and or...

Page 183: ...lly Extended condition by pushing Boom Angle Upper Limit Switch 3 and or Boom Angle Lower Limit Switch 4 A value of two decimal places may be acquired by pushing and holding Check Switch 5 Note Boom l...

Page 184: ...ngle value 1 Push Lifting Height Upper Limit Switch 2 and ensure that Boom Length Indicator and Lifting Height Indicator display Ang and oFF respectively Set the figures in the Boom Angle Indicator to...

Page 185: ...Set the figures in the Boom Angle Indicator to 80 for 80 degree when the Boom is fully raised by pushing Boom Angle Upper Limit Switch 3 and or Boom Angle Lower Limit Switch 4 2 Operate crane and rai...

Page 186: ...pper Limit Switch 2 and ensure that Boom Length Indicator and Lifting Height Indicator display ton and Par respectively Load calibration parameters shall be calibrated to the conditions as listed belo...

Page 187: ...n the Boom Angle Indicator to 0 02 for zero load lifting weight 0 02 tons of Hook weight by pushing Boom Angle Upper Limit Switch 3 and or Boom Angle Lower Limit Switch 4 2 Keep the boom configuration...

Page 188: ...or Boom Angle Lower Limit Switch 4 2 Lift up a test weight of 1 00 ton with the Working Radius 1 5m configuration as identical to above 2 Memory of zero load also identical to previous 1 Memory of Lo...

Page 189: ...ION MODE Indicator Calibration Items Boom Length Calibration Items Lifting Height Calibration Items Boom Angle Calibration Items Offset Length Span Length Offset Angle Span Angle Length and Angle at L...

Page 190: ...output and limit values are canceled Outriggers must be fully Extension and any hazardous operations such as overload and or haste must be absolutely avoided 16 1 CALL OUT OF TEST MODE 1 Turn Power O...

Page 191: ...Switch Test 1 Procedure 1 Ensure that Boom Length Indicator displays L03 When any other Test Item is on push Cancel Switch to switch to L03 2 When you push Check Switch Switch tests shall start and pr...

Page 192: ...of the Boom Derricking Lever will be displayed in 3 digits Three digits Numbers displayed at Lifting Height Indicator Digit 100 10 1 Functions Boom Derricking Lever Outriggers Mid Extension Outrigger...

Page 193: ...s Show Test Item Show Test Result ON OFF Status Data L05 1 Per pushing each Switch ON OFF 3 Reference of each Output Signal and indicated number Output Signal Indicated number 1 Boom Angle Upper Limit...

Page 194: ...ain to switch to subsequent Test Item 2 Result Indication Display Boom Length Lifting Height Boom Angle Actual Load Total rated load Working Radius Show Test Item Pressure Sensor 1 V Pressure Sensor 2...

Page 195: ...input is under standard value Check Length Sensor Length Sensor input is over standard value AD Converter in Converter is not correctly working Turn off the main power once then turn on again In the e...

Page 196: ...3 58 18 TROUBLE SHOOTING In the event of malfunction check each device in accordance with the Flow Chart below...

Page 197: ...3 59...

Page 198: ...E MEASUREMENT OF EACH SENSOR The drawing above is the motherboard for Converter From top to bottom NF8 Angle Sensor NF9 Length Sensor NF7 Pressure Sensor 2 NF6 Pressure Sensor 1 Measure voltage betwee...

Page 199: ...4 1 REMOTE CONTROL 1 INITIAL MODE SETTING PROCEDURE 4 2 2 RECEIVER 4 16 3 TROUBLESHOOTING 4 23...

Page 200: ...4 2 1 INITIAL MODE SETTING PROCEDURE 1 1 BUTTON AND LEVER ARRANGEMENT ON CONTROL PANEL Alphabetical character on each button corresponds to the button name that appears in the following discussion...

Page 201: ...n will become that for setting the OFF timer 3 Use K and L levers until cursor comes to the side of 10M before pushing the D button That change the OFF timer to show 10M 4 To exit from the initial mod...

Page 202: ...he screen for initial mode for user With the system power remaining turned OFF while holding C button pressed continue to press F button until the screen of initial mode for user appears For about 2 s...

Page 203: ...he time of factory shipment this is set at 100 4 Light For selection of backlight OFF as will as how many seconds the backlight remains on after releasing each operation button and lever There are 4 s...

Page 204: ...set Micro Speed For resetting user Micro Speed Mode rate to the initial value N Not reset setting value of the item to default Y Reset setting value of the item to default 8 Version Version will be di...

Page 205: ...g turned OFF while holding H and N levers pressed continue to press F button until the screen of initial mode for user appears For about 2 seconds After MAEDA RADIO REMOTE CONTROL having showed up B M...

Page 206: ...the gain in boom raising and lowering There are 3 selections of HI MID and LOW HI Increase the gain MID LOW Reduces the gain At the time of factory shipment this is set at HI 4 Hook Stowing For selec...

Page 207: ...Serial number will be displayed At the time of factory shipment serial number of your transmitter has been entered Make sure that it coincides with the serial number label affixed to your transmitter...

Page 208: ...ed continue to press F button until the screen of initial mode for maker appears For about 2 seconds After MAEDA RADIO REMOTE CONTROL having showed up C MODE Initial Mode for Maker appears before the...

Page 209: ...ed by the past 8 times At the time of shipment although the error may be displayed the time of manufacture and since it is alike and is displayed with the operation check at the time of shipment etc I...

Page 210: ...selection levers and press D button to set The display then returns to nitial mode setting At the time of factory shipment this value is set to 0 9 Flow control For setting of two points of maximum fl...

Page 211: ...iceVolume ON OFF Accelerator 100 Barchartindicator Light OFF 1S 3S 5S OFF Timer 5M 10M 15M IdleUp 0 Barchartindicator Reset MicroSpeed N Y VERSION Version 46 0106 0001 00 B MODE For Service PTN Patter...

Page 212: ...IN3 MIN4 VALVE Valve NSS50 Micro Speed 1 10 SSC3A Micro Speed 2 18 NACHI Micro Speed 3 60 ERROR Error Indication only COUNT Number of Times of Operation Indication only HOUR Operation Time Indication...

Page 213: ...4 15...

Page 214: ...4 16 2 RECEIVER 2 1 EXTERIOR VIEW 1 Receiver main switch 2 Remote control connector 3 7 segments LED 4 Label Serial number 5 M connector 31 P 6 F connector 31 P...

Page 215: ...ut 13 Engine Stopping Output 29 Hook Raising Lever Limit Switch Input 14 Slewing Counterclockwise Output 30 Hook Lowering Lever Limit Switch Input 15 Hook Raising Output 31 For Common Output for Limit...

Page 216: ...4 18 2 2 CONTROL PRINT CARD LACATIONS 2 2 1 MAIN PRINT CARD...

Page 217: ...2 COMMUNICATION BETWEEN PRINT CARDS Connector No Pin No Description Connector No Pin No Description CN12 1 Communication Power Source CN13 1 Remote Control Transmitting Receiving 2 Communication Low 2...

Page 218: ...nput GND 8 Pre warning 4 PowerSource Input GND 9 Notused 5 PowerSource GND 10 Notused 6 PowerSource GND 11 Emergency Cancel CN2 1 Main Switch 12 Boom Raising Limit 2 GND 13 Boom Lowering Limit 3 Notus...

Page 219: ...tion Power Source 4 Remote Control ON 3 PRINT CARD LED DISPLAY LED No Description LED No Description INPUT OUTPUT LD5 Main switch LD25 Outrigger 1 OUT LD6 Notused LD26 Outrigger 1IN LD7 Moment ratio10...

Page 220: ...xtending Boom retracting Winch hoisting Winch un hoisting Boom raising Boom lowering Boom slewing counter clockwise Boom slewing clockwise 2 3 2 ERROR MESSAGE Error Code Details Emergency stop Signal...

Page 221: ...epair or replace theremotecontrol cable Transmitterdefective Check repair or replace thetransmitter At power ON the transmitter accelerator control lever positioninappropriate With the accelerator con...

Page 222: ...4 24...

Page 223: ......

Page 224: ...M SERVICE MANUAL Document No 101E SM1002 00 First edition February 10 2010 Issued by Maeda Seisakusyo Co Ltd 1095 Onbegawa Shinonoi Nagano Nagano 388 8522 Japan No part of this manual can be reproduce...

Reviews:

No comments