Maeda MC-305C-2 User manual

103E-SM0807-01
SERVICE MANUAL
MINI-CRAWLER CRANE
Serial No. D0001
001001
001 and up
and upand up
and up
The parts numbers and lists written in this service manual are th
e
references for the services such as disassembling and assembling.
Be sure to ALWAYS refer to the latest parts catalog (the lates
t
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.

0-1
CONTENTS
ITEM Page
GENERAL 1- 1
1. SPECIFICATION DIMENSIONNAL DRAWING 1- 2
1.1 STANDARD SPECIFICATION 1- 2
1.2 ENGINE AND ELECTRIC MOTER SPECIFICATION 1- 3
2. DIMENSIONNAL DRAWING OF OUTRIGGER WIDTH 1- 4
3. PRINCIPLE SPECIFICATION LIST 1- 5
3.1 STANDARD SPECIFICATION 1- 5
3.2 ENGINE AND ELECTRIC MOTER SPECIFICATION 1- 6
4. WORKING RADIUS LIFTING HEIGHT 1- 8
5. TOTAL RATED LOAD CHART 1- 9
6. STANDARD PRESSURE AND OPERATING TIME CHART 1-12
6.1 OUTRIGGER 1-12
6.2 CRANE OPERATION (WHEN INCREASING SPEED) 1-12
6.3 TRAVELING OPERATION (WHEN INCREASING SPEED) 1-12
7. POWER TRAIN DRAWING 1-13
CONSTRUCTION & MAINTENANCE
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2- 1
1. HYDRAULIC CERCUIT DIAGRAM 2- 3
2. HYDRAULIC OIL PIPING 2- 6
2.1 CRANE ROTATE PORTION 2- 6
2.2 CRANE FIXED PORTION 2- 8
2.3 TRAVEL LINE 2- 10
2.4 OUTRIGGER LINE 2- 12
2.5 PUMP LINE (P LINE) 2- 16
2.6 TANK AND DRAIN LINE (T AND DR LINE) 2- 18
2.7 PILOT LINE 2- 20
2.8 ELECTRIC MOTOR LINE 2- 22
3. TANK 2- 24
3.1 HYDRAULIC TANK 2- 24
3.2 FUEL TANK 2- 25
4. RETURN MANI-BLOCK 2- 27
5. CHECK VALVE 2- 28
6. ENGINE ASSEMBLY 2- 30
6.1 ENGINE ASSEMBLY 2- 30
6.2 PRINCIPAL ENGINE SPECIFICATIONS 2- 31
6.3 EACH SECTION NAME 2- 32
6.4 LABELS 2- 33
6.5 DIESEL FUEL 2- 34
6.6 COOLANT 2- 37
6.7 LUBRICATING OIL 2- 38
6.8 PERIODIC MAINTENANCE SCHEDULE 2- 40
6.9 TROUBLE SHOOTING 2- 42
6.10 FUEL PIPING 2- 46
6.11 COOLANT PIPING 2- 48

0-2
ITEM Page
7. HYDRAULIC OIL PUMP 2- 49
7.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 49
7.2 INNER PARTS 2- 50
7.3 BASICS OF FUNCTIONALITY 2- 51
7.4 TROUBLE SHOOTING 2- 52
8. TRAVEL CONTROL VALVE 2- 53
8.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 53
8.2 INNER PARTS 2- 54
8.3 INSPECTION AND ADJUSTMENT 2- 55
8.4 TROUBLE SHOOTING 2- 56
9. TRAVELING MOTOR 2- 57
9.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 57
9.2 INNER PARTS 2- 58
9.3 PRECAUTIONS FOR USE 2- 62
10. CRANE CONTROL VALVE 2- 64
10.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 64
10.2 HYDRAULIC CIRCUIT DIAGRAM 2- 65
10.3 RGB BLOCK 2- 66
10.4 ACCELERATOR BLOCK 2- 68
10.5 FUNCTION BLOCK (DERRICK, WINCH, TELESCOPIC, SLEWING) 2- 68
10.6 SOLENOID VALVE FUNCTIONING PRINCIPLE 2- 69
11. OUTRIGGER CONTROL VALVE 2- 72
11.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 72
11.2 INNER PARTS 2- 74
12. OUTRIGGER SELECT VALVE 2- 75
12.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 75
12.2 INNER PARTS 2- 76
13. CRANE CIRCUIT CONFLUENCE VALVE 2- 77
13.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 77
13.2 INNER PARTS 2- 78
13.3 INSPECTION AND ADJUSTMENT 2- 79
13.4 TROUBLE SHOOTING 2- 79
14. TRAVELING SPEED SELECT VALVE 2- 80
14.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 80
14.2 INSPECTION AND ADJUSTMENT 2- 81
14.3 TROUBLE SHOOTING 2- 81
15. ROTARY JOINT 2- 82
15.1 EXTERIOR VIEW AND SPECIFICATIONS 2- 82
15.2 INNER PARTS 2- 83
16. HOOK BLOCK 2- 84
16.1 HOOK BLOCK INSPECTION 2- 86
17. BOOM 2- 88
18. TELESCOPIC AND DERRICK CYLINDER 2- 92
18.1 TELESCOPIC CYLINDER 2- 92
18.2 TELESCOPIC CYLINDER HYDRAULIC CIRCUIT SYSTEM 2- 94
18.3 COUNTER BALANCE VALVE (FOR TELESCOPIC AND DERRICK CYLINDER) 2- 95
18.4 SEQUENCE VALVE (FOR TELESCOPIC CYLINDER) 2- 97
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ITEM Page
18.5 MECHANICAL CHECK VALVE (FOR TELESCOPIC CYLINDER) 2- 98
18.6 LEFT SIDE DERRICK CYLINDER 2-100
18.7 RIGHT SIDE DERRICK CYLINDER 2-102
19. WINCH 2-104
19.1 WINCH UNIT 2-104
19.2 HYDRAULIC OIL MOTOR 2-106
19.3 HYDRAULIC OIL MOTOR INNER PARTS 2-108
19.4 TROUBLE SHOOTING 2-110
19.5 SAFETY PRECAUTIONS 2-111
20. SLEWING SYSTEM 2-114
20.1 EXTERIOR VIEW 2-114
20.2 SLEWING REDUCTION GEAR 2-116
20.3 HYDRAULIC OIL MOTOR INNER PARTS 2-117
20.4 SLEWING MOTOR TROUBLE SHOOTING 2-119
21. OUTRIGGER 2-120
21.1 FRONT OUTRIGGER 2-120
21.2 REAR OUTRIGGER 2-122
22.OUTRIGGER CYLINDER 2-124
22.1 OUTRIGGER SLIDE CYLINDER 2-124
22.2 SINGLE CHECK VALVE (FOR OUTRIGGER SLIDE CYLINDER) 2-126
22.3 FRONT OUTRIGGER CYLINDER 2-128
22.4 REAR OUTRIGGER CYLINDER 2-130
22.5 DOUBLE CHECK VALVE (FOR OUTRIGGER CYLINDER) 2-132
23. ASSEMBLY AND DISASSEMBLY OF BOOM 2-134
24. ELECTRIC CIRCUIT DIAGRAM 2-141
25. ELECTRIC SYSTEM DRAWING 2-142
26. ELECTRIC SYSTEM 2-144
26.1 ENGINE HARNESS 2-144
26.2 REMOTE CONTROL, VALVE AND ELECTRICAL PARTS HARNESS 2-146
26.3 MOMENT LIMITER HARNESS 2-148
26.4 ELECTRIC MOTOR HARNESS 2-150
26.5 OVER HOIST ALARM SYSTEM 2-152
26.6 CRANE INCLINATION ALARM SYSTEM 2-156
MOMENT LIMITER

3- 1
1. MOMENT LIMITER RELATED 3- 2
1.1 DISPLAY UNIT AND CONVERTER 3- 2
1.2 FRONT OUTRIGGER EXTENSION DETECTOR 3- 4
1.3 REAR OUTRIGGER EXTENSION DETECTOR 3- 6
1.4 BOOM DISPLACEMENT DETECTOR 3- 8
1.5 LOAD DETECTOR 3-14
1.6 MOMENT LIMITER ACCESSORY 3-16
1.7 OVER UN-WINDING DETECTOR 3-18
2. OUTRIGGER SAFETY DEVICE 3-20
2.1 ROTARY POSITION DETECTOR 3-20
2.2 GROUND SETTING DETECTOR 3-22
2.3 BOOM STOWING POSITION DETECTOR 3-24
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0-4

ITEM Page
3. MOMENT LIMITER OVERVIEW AND FEATURES 3-27
4. EXTERNAL VIEW OF MOMENT LIMITER 3-28
4.1 DISPLAY UNIT 3-28
4.2 CONVERTER 3-29
5. BLOCK DIAGRAM 3-30
6. CONNECTOR DIAGRAM 3-31
7. CONNECTOR PIN ASSIGNMENT 3-32
7.1 CONVERTER CONNECTORS 3-32
7.2 DISPLAY UNIT CONNECTORS 3-33
8. INPUT/OUTPUT 3-34
8.1 CONVERTER 3-34
8.2 DISPLAY UNIT 3-35
9. DISPLAYS 3-38
10. SWITCHES 3-40
11. DISPLAY UNIT; DETAIL OF EACH SEGMENT 3-42
12. START–UP SEQUENCE 3-44
13. MOMENT LIMITER FUNCTIONS 3-44
14. DISPLAY OF SPECIFIC INDICATORS 3-45
15. OPERATION RANGE LIMITATION CONTROL 3-45
16. CALIBRATION PROCEDURE 3-46
16.1 LIST OF ITEMS 3-46
16.2 PROCEDURE 3-47
16.3 DISPLAY DETAILS AT CALIBRATION MODE 3-55
17. TEST MODE 3-56
17.1 CALL OUT OF TEST MODE 3-56
17.2 L01 (ROM/RAM TEST) 3-57
17.3 L02 (LED TEST) 3-58
17.4 L03 (SWITCH TEST) 3-59
17.5 L04 INPUT SIGNAL TEST 3-60
17.6 L05 OUTPUT SIGNAL TEST 3-61
17.7 L06 (LOAD FACTOR TEST) 3-62
17.8 L07 (VERIFICATION OF INPUT FROM CONVERTER) 3-62
17.9 L08 (TIME SETTING) 3-63
18. PC MODE 3-64
18.1 MOMENT LIMITER OPERATION LOG PICKING UP PROCEDURE 3-64
18.2 MOMENT LIMITER OPERATION LOG DELETING PROCEDURE 3-69
19. ERROR MESSAGES 3-71
20. TROUBLE SHOOTING 3-72
21. POINTS FOR INPUT VOLTAGE MEASUREMENT OF EACH SENSOR 3-74
REMOTE CONTROL 4- 1
1. INITIAL MODE SETTING PROCEDURE 4- 2
1.1 BUTTON ARRANGEMENT ON CONTROL PANEL 4- 2
1.2 ESTABLISHING INITIAL MODE 4- 3
1.3 INITIAL MODE FOR USER (A MODE) 4- 4
1.4 INITIAL MODE FOR SERVICE (B MODE) 4- 7
1.5 INITIAL MODE FOR MAKER (C MODE) 4-10
1.6 INITIAL MODE SETTING (For interactive remote controller) 4-16

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ITEM Page
2. RECEIVER 4-18
2.1 STATUS DISPLAY 4-18
2.2 CONTROL PRINT CARD LACATIONS 4-20
2.3 CONNECTOR PIN ASSIGNMENT 4-24
2.4 VALVE NEUTRAL SETTING PROCEDURE 4-26
2.5 MONITOR DISPLAY MESSAGE 4-28
2.6 FUSE IN THE RECEIVER 4-29
3. VOICE MESSAGES 4-31
4. TROUBLESHOOTING 4-32
ELECTRIC MOTOR 5- 1
1. POWER UNIT 5- 2
2. INVERTER UNIT 5- 4
2.1 GENERAL VIEW 5- 5
2.2 NAME AND FUNCTION 5- 6
2.3 TRIP INFORMATION AND REMEDIES 5- 8
2.4 INSPECTION AND MAINTENANCE 5-15
2.5 DISPOSAL OF THE INVERTER 5-17
3. POWER SUPPLY BOX 5-18
4. ELECTRIC CIRCUIT DIAGRAM 5-20

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1-1

GENERAL
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
1. SPECIFICATION DIMENSIONNAL DRAWING 1- 2
2. DIMENSIONNAL DRAWING OF OUTRIGGER WIDTH 1- 4
3. PRINCIPLE SPECIFICATION LIST 1- 5
4. WORKING RADIUS LIFTING HEIGHT 1- 8
5. TOTAL RATED LOAD CHART 1- 9
6. STANDARD PRESSURE AND OPERATING TIME CHART 1-12
7. POWER TRAIN DRAWING 1-13

1-2
1. SPECIFICATION DIMENSIONNAL DRAWING
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
1.1 STANDARD SPECIFICATION

1-3
1.2 ENGINE AND ELECTRIC MOTER SPECIFICATION

1-4
2. DIMENSIONNAL DRAWING OF OUTRIGGER WIDTH
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1-5
3. PRINCIPLE SPECIFICATION LIST
3.1 STANDARD SPECIFICATION
System / Item MC-305C-2
Machine mass 3900kg
Overall length x width x height 4285mm x 1280mm x 1695mm
Distance between idler and sprocket 1750mm
Track gauge 980mm
Mass and
dimensions
Track width 300mm
Maximum rated total load x working
radius 2.98t x 2.5m
Maximum working radius 12.16m
Capacity
Maximum lifting height 12.52m
Method Swash plate axial piston motor, planetary gear deceleration,
Friction plate brake
Winding speed 13.5m/min (4th drum, 4 ropes)
Winch system
Hoisting rope IWRC 6 x WS (26) 0/0 Type B φ8 x 73m
Method
Sequentially telescoping hydraulic cylinder (3 pieces) +
Sheave-embedded wire rope expansion device (1 piece),
(With a hydraulic automatic locking device)
Boom type
Pentagonal section, hydraulic automatic extension,
5-stage boom (Stage 2.3: Sequentially telescoping,
Stage 4/5: Simultaneous telescoping)
Boom length 3.695m – 5.945m – 8.145m – 10.315m – 12.485m
Boom
telescoping
system
Boom telescoping stroke/ time 8.79m/26sec
Method Direct push-type hydraulic double-acting cylinder (2 pieces),
(With a hydraulic automatic locking device)
Derrick
system Derrick angle/ time 0 to 80 deg./14.5sec
Method Swing bearing, hydraulic motor drive,
Reduction gear: Worm + Reduction spur gear, Brake: Worm-selflock
Slewing
system Slewing angle/ speed 360 deg. (continuous)/ 25sec (2.4min-1)
Method Extension/ground: Direct push-type hydraulic cylinder
(With a hydraulic automatic locking device)
Outrigger
system Overall width of extended outriggers (Front) 4504mm x (Right/left) 4888mm x (Rear) 4396mm
Method Hydraulic two-speed motor drive, Variable speed, Built-in brake
Travel speed Forward/backward: 0 – 2.8km/h
Grade-ability 2.3 deg.
Traveling
system
Ground pressure 36.3kPa (0.37kgf/cm2)
Hydraulic pump Double-throw variable piston pump (13cc/rev x 2)
Rated pressure
Traveling: 20.6MPa (210kgf/cm2)
Crane high-pressure relief: 20.1MPa (205kgf/cm2)
Crane low-pressure relief: 4.41 to 6.37MPa (45 to 65kgf/cm2)
Hydraulic
system
Hydraulic oil tank capacity 56L
Model Yanmar 3TNV76
Type Vertical in-line 3-cylinder, Water cooled, 4-cycle
(Special vortex)
Displacement 1.115L (1115cc)
Rated output (continuous) 15.2kW/2500min-1 (20.7PS/2500rpm)
Engine
Fuel tank capacity Light oil/ 40L
Battery Model 60B24R (DC12V x 1 piece)
Safety device
Over hoist detector / automatic stop device, three-winding stop alarm / automatic stop device, load indicator,
hydraulic safety valve, hydraulic automatic locking device, slinging rope detachment protector, alarm buzzer,
audio alarm, level, crane tip-over alarm (an alarm issued in the event of the crane operation at 3-degree
inclination and traveling at 15-degree inclination), traveling lever lock, traveling/crane/outrigger selector switch
(designed to prevent the machine from craning at traveling), outrigger safety device (outrigger interlock and
crane interlock), moment limiter (working envelope limited), working status lamp, outrigger non-installation
warning lamp

1-6
3.2 ENGINE AND ELECTRIC MOTER SPECIFICATION
System / Item MC-305C-2 (Engine and Electric Motor Specifications)
Machine mass 4040kg
Overall length x width x height 4285mm x 1280mm x 1695mm
Distance between idler and sprocket 1750mm
Track gauge 980mm
Mass and
dimensions
Track width 300mm
Maximum rated total load x working
radius 2.98t x 2.5m
Maximum working radius 12.16m
Capacity
Maximum lifting height 12.52m
Method Swash plate axial piston motor, planetary gear deceleration,
Friction plate brake
Winding speed Engine operation: 13.5m/min, Electric operation: 9.125m/min
(4th drum, 4 ropes)
Winch system
Hoisting rope IWRC 6 x WS (26) 0/0 Type B φ8 x 73m
Method
Sequentially telescoping hydraulic cylinder (3 pieces) +
Sheave-embedded wire rope expansion device (1 piece),
(With a hydraulic automatic locking device)
Boom type
Pentagonal section, hydraulic automatic extension,
5-stage boom (Stage 2.3: Sequentially telescoping,
Stage 4/5: Simultaneous telescoping)
Boom length 3.695m – 5.945m – 8.145m – 10.315m – 12.485m
Boom
telescoping
system
Boom telescoping stroke/time Engine operation: 8.79m/26sec
Electric operation: 8.79m/39.6sec
Method Direct push-type hydraulic double-acting cylinder (2 pieces),
(With a hydraulic automatic locking device)
Derrick
system Derrick angle/ time Engine operation: 0 to 80 deg./14.5sec,
Electric operation: 0 to 80 deg./19.9sec
Method Swing bearing, hydraulic motor drive,
Reduction gear: Worm + Reduction spur gear, Brake: Worm-selflock
Slewing
system Slewing angle/ speed Engine operation: 360 deg. (continuous)/ 25sec (2.4min-1)
Electric operation: 360 deg. (continuous)/ 36.7sec (1.6min-1)
Method Extension/ground: Direct push-type hydraulic cylinder
(With a hydraulic automatic locking device)
Outrigger
system Overall width of extended outriggers (Front) 4504mm x (Right/left) 4888mm x (Rear) 4396mm
Method Hydraulic two-speed motor drive, Variable speed, Built-in brake
Travel speed Forward/backward: 0 – 2.8km/h (engine operation)
Grade-ability 2.3 deg.
Traveling
system
Ground pressure 36.3kPa (0.37kgf/cm2)
Hydraulic pump Engine operation: Double-throw variable piston pump (13cc/rev x 2)
Electric operation: Double-throw variable piston pump (8.6cc/rev x 2)
Rated pressure
Traveling: 20.6MPa (210kgf/cm2)
Crane high-pressure relief: 20.1MPa (205kgf/cm2)
Crane low-pressure relief: 4.41 to 6.37MPa (45 to 65kgf/cm2)
Hydraulic
system
Hydraulic oil tank capacity 56L

1-7
System / Item MC-305C-2 (Engine and Electric Motor Specifications)
Model Yanmar 3TNV76
Type Vertical in-line 3-cylinder, Water cooled, 4-cycle (special vortex)
Displacement 1.115L (1115cc)
Rated output (continuous) 15.2kW/2500min-1 (20.7PS/2500rpm)
Engine
Fuel tank capacity Light oil/ 40L
Battery Model 60B24R (DC12V x 1 piece)
Motor specifications Three-phase induction motor: 5.5kW 4P 200. 220V 50Hz
Electric
motor Starting method
Inverter-controlled (30 to 60Hz), energy-saving mode available
(Crane mode: 10-Hz operation after 5-minute consecutive no
operation, automatic power off in 30 minutes)
Safety
device
Over hoist detector / automatic stop device, three-winding stop alarm / automatic stop device, load indicator,
hydraulic safety valve, hydraulic automatic locking device, slinging rope detachment protector, alarm buzzer, audio
alarm, level, crane tip-over alarm (an alarm issued in the event of the crane operation at 3-degree inclination and
traveling at 15-degree inclination), traveling lever lock, traveling/crane/outrigger selector switch (designed to prevent
the machine from craning at traveling), outrigger safety device (outrigger interlock and crane interlock), moment
limiter (working envelope limited), working status lamp, outrigger non-installation warning lamp

1-8
4. WORKING RADIUS AND LIFTING HEIGHT
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1-9
5. TOTAL RATED LOAD CHART
[1] TOTAL RATED LOAD CHART AT WIRE ROPE 4 FALLS
OUTRIGGER EXTENDED TO MAXIMUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 2980 2.70 2270 4.00 1080 4.50 790
3.00 2.390 3.00 2120 4.50 985 5.00 660
3.50 1990 3.50 1680 5.00 880 6.00 520
4.00 1710 4.00 1440 6.00 770 7.00 430
4.50 1490 4.50 1260 7.00 670 8.00 380
5.00 1340 5.00 1110 8.00 570 9.00 340
5.62 1160 5.50 990 9.00 500 10.00 310
-- -- 6.00 880 9.99 435 11.00 280
-- -- 7.00 730 -- -- 12.16 260
-- -- 7.82 630 -- -- -- --
OUTRIGGER EXTENDED TO MEDIUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 2980 2.70 2270 4.00 1060 4.50 780
3.00 2.360 3.00 2090 4.50 950 5.00 650
3.50 1960 3.50 1680 5.00 860 6.00 500
4.00 1680 4.00 1420 6.00 750 7.00 410
4.50 1380 4.50 1240 7.00 630 8.00 360
5.00 1140 5.00 1070 8.00 490 9.00 320
5.62 950 5.50 950 9.00 410 10.00 290
-- -- 6.00 800 9.99 350 11.00 260
-- -- 7.00 610 -- -- 12.16 250
-- -- 7.82 520 -- -- -- --
OUTRIGGER EXTENDED TO MINIMUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 2980 2.70 2270 4.00 1060 4.50 780
3.00 2.350 3.00 2090 4.50 950 5.00 650
3.50 1800 3.50 1680 5.00 860 6.00 500
4.00 1430 4.00 1370 6.00 680 7.00 410
4.50 1140 4.50 1120 7.00 530 8.00 360
5.00 950 5.00 910 8.00 420 9.00 320
5.62 790 5.50 790 9.00 340 10.00 290
-- -- 6.00 670 9.99 300 11.00 240
-- -- 7.00 510 -- -- 12.16 210
-- -- 7.82 430 -- -- -- --

1-10
[2] TOTAL RATED LOAD CHART AT WIRE ROPE 2 FALLS
OUTRIGGER EXTENDED TO MAXIMUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 1480 2.70 1480 4.00 1080 4.50 790
3.00 1480 3.00 1480 4.50 985 5.00 660
3.50 1480 3.50 1480 5.00 880 6.00 520
4.00 1480 4.00 1440 6.00 770 7.00 430
4.50 1480 4.50 1260 7.00 670 8.00 380
5.00 1340 5.00 1110 8.00 570 9.00 340
5.62 1160 5.50 990 9.00 500 10.00 310
-- -- 6.00 880 9.99 435 11.00 280
-- -- 7.00 730 -- -- 12.16 260
-- -- 7.82 630 -- -- -- --
OUTRIGGER EXTENDED TO MEDIUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 1480 2.70 1480 4.00 1060 4.50 780
3.00 1480 3.00 1480 4.50 950 5.00 650
3.50 1480 3.50 1480 5.00 860 6.00 500
4.00 1480 4.00 1420 6.00 750 7.00 410
4.50 1380 4.50 1240 7.00 630 8.00 360
5.00 1140 5.00 1070 8.00 490 9.00 320
5.62 950 5.50 950 9.00 410 10.00 290
-- -- 6.00 800 9.99 350 11.00 260
-- -- 7.00 610 -- -- 12.16 250
-- -- 7.82 520 -- -- -- --
OUTRIGGER EXTENDED TO MINIMUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 1480 2.70 1480 4.00 1060 4.50 780
3.00 1480 3.00 1480 4.50 950 5.00 650
3.50 1480 3.50 1480 5.00 860 6.00 500
4.00 1430 4.00 1370 6.00 680 7.00 410
4.50 1140 4.50 1120 7.00 530 8.00 360
5.00 950 5.00 910 8.00 420 9.00 320
5.62 790 5.50 790 9.00 340 10.00 290
-- -- 6.00 670 9.99 300 11.00 240
-- -- 7.00 510 -- -- 12.16 210
-- -- 7.82 430 -- -- -- --

1-11
[3] TOTAL RATED LOAD CHART AT WIRE ROPE 1 FALL
OUTRIGGER EXTENDED TO MAXIMUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 750 2.70 750 4.00 750 4.50 750
3.00 750 3.00 750 4.50 750 5.00 660
3.50 750 3.50 750 5.00 750 6.00 520
4.00 750 4.00 750 6.00 750 7.00 430
4.50 750 4.50 750 7.00 670 8.00 380
5.00 750 5.00 750 8.00 570 9.00 340
5.62 750 5.50 750 9.00 500 10.00 310
-- -- 6.00 750 9.99 435 11.00 280
-- -- 7.00 730 -- -- 12.16 260
-- -- 7.82 630 -- -- -- --
OUTRIGGER EXTENDED TO MEDIUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 750 2.70 750 4.00 750 4.50 750
3.00 750 3.00 750 4.50 750 5.00 650
3.50 750 3.50 750 5.00 750 6.00 500
4.00 750 4.00 750 6.00 750 7.00 410
4.50 750 4.50 750 7.00 630 8.00 360
5.00 750 5.00 750 8.00 490 9.00 320
5.62 750 5.50 750 9.00 410 10.00 290
-- -- 6.00 750 9.99 350 11.00 260
-- -- 7.00 610 -- -- 12.16 250
-- -- 7.82 520 -- -- -- --
OUTRIGGER EXTENDED TO MINIMUM
BOOM (1)+(2) BOOM (1)+(2)+(3) BOOM (1)+(2)+(3)+(4) BOOM (1)+(2)+(3)+(4)+(5)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
Working
radius (m)
Total rated
load (kg)
2.50 750 2.70 750 4.00 750 4.50 750
3.00 750 3.00 750 4.50 750 5.00 650
3.50 750 3.50 750 5.00 750 6.00 500
4.00 750 4.00 750 6.00 680 7.00 410
4.50 750 4.50 750 7.00 530 8.00 360
5.00 750 5.00 750 8.00 420 9.00 320
5.62 750 5.50 750 9.00 340 10.00 290
-- -- 6.00 670 9.99 300 11.00 240
-- -- 7.00 510 -- -- 12.16 210
-- -- 7.82 430 -- -- -- --

1-12
6. STANDARD PRESSURE AND OPERATING TIME CHART
6.1 OUTRIGGER
(WHEN OIL TEMPERATURE 30 - 50 °C)
WHEN FULL ACCELERATING
Operating time (sec)
Operating Pressure (MPa)
(At Traveling control valve) Engine power Electric motor power
Extend 2.3 10±2 14±2
Front Outrigger Slide
(2-pieces) Retract 2.3 10±2 14±2
Extend 2.3 10±2 14±2
Rear Outrigger Slide
(2-pieces) Retract 2.3 10±2 14±2
Extend 2.3 14±2 20±2
Front Outrigger Ground set
(2-pieces) Retract 2.3 17±2 24±2
Extend 2.3 8±2 11±2
Rear Outrigger Ground set
(2-pieces) Retract 2.3 9±2 13±2

6.2 CRANE OPERATION (WHEN INCREASING SPEED)
(WHEN OIL TEMPERATURE 30 - 50 °C)
WHEN FULL ACCELERATING
Operating time (sec)
Operating Pressure (MPa)
(At Traveling control valve) Engine power Electric motor power
Raise 10.0 – 12.5 15±3 23±3
Boom Derricking
(0 – 80 deg.) Lower 14.0 – 15.5 16±3 20±3
Raise 9.5 – 10.5 9±3 14±3
Hoisting (2m, 2-boom) Lower 10.0 – 11.0 10±3 15±3
Extend 9.0 – 12.0 26±5 40±5
Boom telescoping
(No.1 boom to No.5 boom) Retract 15.0 – 18.5 31±5 39±5
Counter
clockwise 10.5 – 11.5 25±3 36±3
Slewing (360 deg.)
Clockwise 10.5 – 11.5 25±3 36±3

6.3 TRAVELING OPERATION (WHEN INCREASING SPEED)
(WHEN OIL TEMPERATURE 30 - 50 °C)
WHEN FULL ACCELERATING
Operating time (sec)Operating Pressure (MPa)
(At Traveling control valve) Engine power Electric motor power
Straight Traveling (20 m) Forward 7.5 – 9.5 27±2
