Maeda LC785M-8B User manual

557E-OM1202-00
OPERATION MANUAL
CRAWLER CRANE
Serial No. 32024 and up
Unsafe use of this machine may cause serious injury or death. Operators
must read this manual before operating this machine. This manual should
be kept near the machine for reference and periodically reviewed by all
personnel who will come into contact with it.
NOTICE
MAEDA has Operation Manuals written in some other languages. If a
foreign language manual is necessary, contact your local distributor for
availability.

CONTENTS
ITEM Page
INTRODUCTION 1 – 1
1. INTRODUCTION 1 – 2
2. FOR SAFE USE OF MACHINE 1 – 3
3. MACHINE OVERVIEW 1 – 4
3.1 SPECIFIED OPERATIONS 1 – 4
3.2 MACHINE CONFIGURATION 1 – 4
3.3 MACHINE FUNCTIONS 1 – 5
4. QUALIFICATION FOR OPERATION 1 – 6
4.1 QUALIFICATION FOR CRANE OPERATION 1 – 6
5. TERMINOLOGY 1 – 7
5.1 DEFINITIONS OF TERMS 1 – 7
5.2 DIAGRAM OF WORKING RADIUS AND LIFTING HEIGHT 1 – 8
5.3 RATED TOTAL LOAD CHART 1 – 9
6. NECESSARY INFORMATION FOR SERVICE 1 – 12
SAFETY 2 – 1
1. BASIC PRECAUTIONS 2 – 2
1.1 PRECAUTIONS BEFORE STARTING OPERATION 2 – 2
1.2 PREPARATIONS OF SAFETY OPERATION 2 – 3
1.3 PRECAUTIONS FOR FIRE PREVENTION 2 – 5
1.4 PRECAUTIONS WHEN GETTING ON OR OFF 2 – 6
1.5 OTHER PRECAUTIONS 2 – 7
2. DRIVING RELATED PRECAUTIONS 2 – 8
2.1 PRECAUTIONS FOR JOB SITE 2 – 8
2.2 PRECAUTIONS WHEN STARTING ENGINE 2 – 11
2.3 PRECAUTIONS WHEN STARTING TO MOVE MACHINE 2 – 13
2.4 PRECAUTIONS WHEN WORKING WITH CRANE 2 – 16
3. TRANSPORT PRECAUTIONS 2 – 24
4. TOWING PRECAUTIONS 2 – 25
5. MAINTENANCE PRECAUTIONS 2 – 26
5.1 PRECAUTIONS BEFORE MAINTENANCE 2 – 26
5.2 PRECAUTIONS DURING MAINTENANCE 2 – 29
6. SAFETY LABEL LOCATIONS 2 – 33
OPERATION 3 – 1
1. MACHINE EACH SECTION 3 – 2
1.1 MACHINE EACH UNIT 3 – 2
1.2 OPERATOR’S COMPARTMENT EQUIPMENT 3 – 3
1.2.1 MACHINE MONITOR 3 – 4
1.2.2 MOMENT LIMITER RELATED SWITCH BOX 3 – 5

ITEM Page
2. EXPLANATION OF DEVICES 3 – 6
2.1 MACHINE MONITOR 3 – 6
2.1.1 BASIC OPERATION OF MACHINE MONITOR 3 – 7
2.1.2 EMERGENCY STOP ITEMS 3 – 10
2.1.3 CAUTION ITEMS 3 – 12
2.1.4 BASIC CHECK ITEMS 3 – 14
2.1.5 METER DISPLAY PORTION 3 – 15
2.1.6 MONITOR SWITCHES PORTION 3 – 21
2.1.7 HANDLING FUNCTION SWITCHES 3 – 27
2.2 SWITCHES 3 – 40
2.3 CONTROL LEVERS AND PEDALS 3 – 49
2.4 MOMENT LIMITER(OVERLOAD DETECTOR) 3 – 53
2.4 1 MOMENT LIMITER CONFIGURATION 3 – 53
2.4.2 FUNCTION MOMENT LIMITER 3 – 54
2.4.3 MOMENT LIMITER OPERATIONS 3 – 56
2.4.4 NAMES OF MOMENT LIMITER DISPLAY UNIT 3 – 58
2.4.5 MOMENT LIMITER FUNCTIONS 3 – 67
2.4.6 MOMENT LIMITER STARTING STATUS 3 – 71
2.4.7 MOMENT LIMITER WORKING ENVELOPE SETTING 3 – 71
2.4.8 PICK & CARRY / STAITIONARY MODE SELECT 3 – 72
2.4.9 MOMENT LIMITER ERROR CAUSES AND ACTIONS TO TAKEN 3 – 73
2.5 OVER HOIST DETECTOR 3 – 74
2.6 AIR CONDITIONER CONTROLS 3 – 75
2.6.1 AIR CONDITIONER CONTROL PANEL 3 – 75
2.6.2 AIR CONDITIONER OPERATION METHOD 3 – 79
2.6.3 USE AIR CONDITIONER WITH CARE 3 – 85
2.6.4 INSPECTION AND MAINTENANCE OF AIR CONDITIONER 3 – 85
2.7 RADIO 3 – 86
2.7.1 CONTROL PANEL 3 – 86
2.7.2 CONTROL OF RADIO 3 – 88
2.7.3 USE RADIO WITH CARE 3 – 90
2.8 FUSE 3 – 91
2.9 FUSIBLE LINK 3 – 92
2.10 POWER OUTLET 3 – 93
2.11 CONTROLLERS 3 – 94
2.12 WINDSHIELD 3 – 95
2.13 SLIDING DOOR 3 – 100
2.14 EMERGENCY ESCAPE HAMMER 3 – 100
2.15 CAP WITH LOCK 3 – 101
2.16 ENGINE HOOD 3 – 103
2.17 MAINTENANCE DOOR ON REAR RIGHT 3 – 104
2.18 MAINTENANCE DOOR ON REAR LEFT 3 – 104
2.19 BATTERY INSPECTION COVER 3 – 105

ITEM Page
2.20 OPERATION MANUAL STORAGE 3 – 106
2.21 CUP HOLDER 3 – 106
2.22 GREASE PUMP HOLDER 3 – 106
2.23 ASHTRAY 3 – 106
2.24 WIND-IN TYPE SEAT BELT 3 – 107
3. MACHINE OPERATIONS AND CONTROLS 3 – 108
3.1 CHECKING BEFORE OPERATION 3 – 108
3.1.1 CHECKING BEFORE STARTING ENGINE (VISIBLE CHECKS) 3 – 108
3.1.2 CHECKING BEFORE STARTING ENGINE 3 – 111
3.1.3 OPERATIONS BEFORE STARTING ENGINE 3 – 123
3.1.4 CHECKING AFTER STARTING ENGINE 3 – 125
3.2 STARTING ENGINE 3 – 128
3.2.1 NORMAL STARTING ENGINE 3 – 128
3.2.2 STARTING ENGINE IN COLD WEATHER 3 – 130
3.3 OPERATIONS AFTER STARTING ENGINE 3 – 133
3.3.1 ENGINE WARM-UP 3 – 134
3.3.2 HYDRAULIC EQUIPMENT WARM-UP 3 – 135
3.3.3 OPERATION AFTER COMPLETION OF WARM-UP OPERATION 3 – 141
3.4 STOPPING ENGINE 3 – 142
3.5 BREAKING-IN MACHINE 3 – 143
3.6 MACHINE TRAVELLING POSTURE 3 – 144
3.7 STARTING / MOVING / STOPPING MACHINE 3 – 145
3.8 STEERING MACHINE 3 – 149
3.9 SLEWING 3 – 151
3.10 WORKING MODE OPERATION 3 – 152
3.11 CAUTIONS BEFORE CRANE OPERATION 3 – 153
3.12 OPERATIONS BEFORE OPERATING THE CRANE 3 – 155
3.13 CRANE OPERATION POSTURE 3 – 157
3.14 HOOK RAISING / LOWERING OPERATION 3 – 158
3.14.1 NORMAL HOOK RAISING / LOWERING OPERATION 3 – 158
3.14.2 HIGH SPEED HOOK RAISING / LOWERING OPERATION 3 – 159
3.14.3 HOOK RAISING OPERATION BY HOOK STOWAGE SWITCH 3 – 160
3.15 BOOM DERRICKING OPERATION 3 – 161
3.16 BOOM TELESCOPING OPERATION 3 – 162
3.17 SLEWING OPERATION 3 – 163
3.18 ACCELERATION OPERATION 3 – 164
3.19 STOWAGE OPERATION OF CRANE 3 – 165
3.19.1 CRANE OPERATION FOR TEMPORARY HOOK BLOCK STOWAGE 3 – 165
3.19.2 CRANE OPERATION FOR REGULAR HOOK BLOCK STOWAGE 3 – 168
3.20 DO’S AND DON’TS DURING OPERATION 3 – 171
3.21 PICK & CARRY OPERATION 3 – 174
3.21.1 SAFETY PRECAUTIONS FOR PICK & CARRY OPERATION 3 – 174
3.21.2 POSTURE FOR PICK & CARRY OPERATION 3 – 175

ITEM Page
3.21.3 OPERATIONS DURING PICK & CARRY OPERATION 3 – 176
3.21.4 RELEASING PICK & CARRY OPERATION POSTURE 3 – 176
3.22 OPERATION OF BLADE 3 – 177
3.22.1 PRECAUTION OF BLADE OPERATION 3 – 177
3.22.2 OPERATION OF BLADE 3 – 178
3.22.3 WORKING WITH A BLADE GROUND LEVELLING 3 – 178
3.23 PARKING MACHINE 3 – 179
3.24 MACHINE INSPECTION AFTER DAILY WORK 3 – 180
3.24.1 BEFORE STOPPING ENGINE 3 – 180
3.24.2 AFTER STOPPING ENGINE 3 – 180
3.24.3 LOCKING 3 – 180
3.25 CAUTIONS IN TRAVELLING 3 – 181
4. HANDLING WIRE CABLES 3 – 184
4.1 BENCHMARK FOR REPLACING WIRE CABLES 3 – 184
4.2 WINCH WIRE ROPE FALL MODE AND RATED TOTAL LOAD 3 – 186
4.3 WHAT TO DO WITH TWISTED WINCH WIRE ROPE 3 – 187
5. TRANSPORTATION 3 – 190
5.1 LOADING / UNLOADING 3 – 191
5.1.1 LOADING 3 – 192
5.1.2 SECURING MACHINE 3 – 194
5.1.3 UNLOADING 3 – 195
5.2 LIFTING MACHINE 3 – 196
5.2.1 LIFTING THE MACHINE IN THE BOOM LOWERED POSTURE 3 – 196
5.2.2 LIFTING UP THE MACHINE IN THE BOOM RAISED POSTURE 3 – 198
5.3 TRANSPORTATION PROCEDURE 3 – 199
6. HANDLING IN COLD WEATHER 3 – 200
6.1 PREPARING FOR LOW TEMPERATURE 3 – 200
7. LONG TERM STORAGE 3 – 202
7.1 BEFORE STORAGE MACHINE 3 – 202
7.2 DURING STORAGE 3 – 202
7.3 AFTER STORAGE 3 – 202
8. TROUBLES AND ACTIONS 3 – 203
8.1 RUNNING OUT FUEL 3 – 203
8.2 PHENOMENA THAT ARE NOT FAILURES 3 – 203
8.3 METHOD FOR TOWING 3 – 204
8.4 DISCHARGED BATTERY 3 – 205
8.4.1 CAUTIONS IN BATTERY HANDLING 3 – 205
8.4.2 BATTERY REMOVAL AND INSTALLATION 3 – 206
8.4.3 CAUTIONS IN BATTERY CHARGING 3 – 207
8.4.4 STARTING ENGINE WITH BOOSTER CABLE 3 – 208
8.5 OTHER TROUBLE 3 – 210
8.5.1 ELECTRICAL SYSTEM 3 – 210
8.5.2 CHASSIS 3 – 211
8.5.3 ENGINE 3 – 212

ITEM Page
8.5.4 ELECTRONIC CONTROL SYSTEM 3 – 214
8.5.5 MOMENT LIMITER 3 – 215
8.5.6 OVER HOIST DETECTOR 3 – 216
INSPECTION AND MAINTENANCE 4 – 1
1. PRECAUTIONS REGARDING MAINTENANCE 4 – 2
2. BASIC MAINTENANCE 4 – 4
3. LEGAL INSPECTION 4 – 7
4. SAFETY CRITICAL PARTS 4 – 8
5. CONSUMABLES 4 – 9
6. OTHER COMPONENTS 4 – 10
7. USE OF FUEL, COOLANT AND LUBRICANT 4 – 11
7.1 USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT
TEMPERATURES 4 – 11
8. TIGHTENING TORQUE SPECIFICATIONS 4 – 13
8.1 STANDARD TIGHTENING TORQUE LIST 4 – 13
9. INSPECTION AND MAINTENANCE LIST 4 – 14
10. MAINTENANCE PROCEDURES 4 – 17
10.1 INITIAL 500-HOUR MAINTENANCE
(ONLY FOR FIRST TIME MAINTENANCE OF A NEW MACHINE) 4 – 17
10.2 CHECKING BEFORE OPERATION 4 – 17
10.3 IRREGULAR MAINTENANCE 4 – 18
10.4 MAINTENANCE EVERY 50 HOURS 4 – 42
10.5 MAINTENANCE EVERY 100 HOURS 4 – 44
10.6 MAINTENANCE EVERY 250 HOURS 4 – 46
10.7 MAINTENANCE EVERY 500 HOURS 4 – 51
10.8 MAINTENANCE EVERY 1000 HOURS 4 – 60
10.9 MAINTENANCE EVERY 2000 HOURS 4 – 71
10.10 MAINTENANCE EVERY 4000 HOURS 4 – 72
10.11 MAINTENANCE EVERY 5000 HOURS 4 – 73
11. BLEEDING AIR FROM HYDRAULIC SYSTEM 4 – 76
12. METHOD FOR RELEASING PRESSURE IN HYDRAULIC CIRCUIT 4 – 80
SPECIFICATIONS 5 – 1
1. SPECIFICATION LIST 5 – 2
2. SPECIFICATION DIMENSIONAL DRAWING 5 – 4
3. RATED TOTAL LOAD CHART 5 – 5
4 WORKING RADIUS AND LIFTING HEIGHT 5 – 8
FLY-JIB 6 – 1
1.PRECAUTIONS OF FLY-JIB OPERATION 6 – 2
2.SAFETY LABEL LOCATION 6 – 4
2.1 SAFETY LABEL LOCATION AT FLY-JIB 6 – 4
3. WORKING RANGE CHART 6 – 5
4. TOTAL RATED LOAD CHART 6 – 6
5. FLY-JIB EACH SECTION 6 – 7

ITEM Page
6. FLY-JIB INSTALLATION AND STOWAGE 6 – 8
6.1 FLY-JIB INSTALLATION 6 – 9
6.2 EXTENDING NO.2 FLY-JIB 6 – 15
6.3 RETRACTIMG NO.2 FLY-JIB 6 – 15
6.4 FLY-JIB STOWAGE 6 – 16
7. HANDLING MOMENT LIMITER 6 – 20
7.1 MOMENT LIMITER DISPLAY 6 – 20
7.2 PRIOR TO USE MOMENT LIMITER, SAFETY PRECAUTIONS 6 – 22
7.3 MOMENT LIMITER FUNCTIONS 6 – 23
7.3.1 FLY-JIB MODE SWITCH DISPLAY 6 – 23
7.4 SETTING OF OPERATING CONDITIONS 6 – 24
7.4.1 FLY-JIB MODE SWITCH (FLY-JIB OPERATION) 6 – 24
8. OPERATIONS 6 – 25
9. TRANSPORTATIONS 6 – 25
10. INSPECTION AND MAINTENANCE 6 – 26
10.1 MAINTENANCE EVERY 50 HOURS 6 – 26
11. SPECIFICATIONS 6 – 27
11.1 SPECIFICATIONS 6 – 27
11.2 DIMENSIONS 6 – 27

INTRODUCTION
1. INTRODUCTION 1 – 2
2. FOR SAFE USE OF MACHINE 1 – 3
3. MACHINE OVERVIEW 1 – 4
4. QUALIFICATION FOR OPERATION 1 – 6
5. TERMINOLOGY 1 – 7
6. NECESSARY INFORMATION FOR SERVICE 1 – 12
1-1

1. INTRODUCTION
Thank you for purchasing our Crawler Crane “LC785M-8”.
This manual is a guidebook for safe and effective use of this machine.
This manual describes the procedures for proper operation and maintenance of the machine. Warnings
and precautions defined in this manual shall be observed for safety.
Many of the accidents are caused by failure to observe the basic precautions for operation, inspection
and maintenance.
Be sure to read this manual and understand the procedures for machine operation, inspection, and
maintenance thoroughly before performing any operation of this machine.
Failure to observe the basic precautions defined in this manual may lead to hazardous accidents.
Failure to use this machine properly can lead to serious personal injury or death.
Operators and maintenance personnel must always read this manual prior to operation or
maintenance of this machine.
Keep this manual at a designated place for reference when necessary. All personnel who work
with this machine are to carry out periodic reference to the manual.
•Only those who have a thorough understanding of the fundamental procedures provided in
this manual are allowed to operate this machine.
•Keep this manual handy for reference when necessary.
•Should you lose or damage this manual, contact Maeda or our sales service agency
immediately for ordering a new manual.
•This manual should always accompany this machine upon transfer of the machine to the next
owner. However, when the machine is sold to a third party without any prior advice to us, we
are not liable for any warranty.
•This manual has adopted data that was available at the time of the creation of the manual.
The contents of this manual, including maintenance specifications, tightening torque,
pressure, measuring method, adjustment value, and illustrations, are subject to change
without notice.
Machine maintenance may be subject to revisions. Always obtain the latest information from
Maeda or our sales service agency before performing maintenance of this machine.
For safety instructions, see “2. For Safe Use of Machine” on page 1-3 and “Safety” on page 2-1.
[Storage location for the Operation and Maintenance Manual]
In magazine box on the left side in cab.
1-2

2. FOR SAFE USE OF MACHINE
This manual classifies the risks into the following three categories to present the details of the safety
labels in an easy-to-understand manner.
This denotes that there is an imminent hazard which will cause serious
personal injury or death.
The method of hazard circumvention is stated.
This denotes that there is a hazard which can cause serious personal injury
or death.
The method of hazard circumvention is stated.
This denotes that there is a potential hazard which may cause minor or
moderate personal injury or serious damage to this machine.
The method of hazard circumvention is stated.
This manual also provides the following to indicate what must be observed for the sake of the machine
and what will be of help.
CAUTION This denotes that failure to handle the machine properly may damage the
machine or shorten its life.
1-3
This denotes helpful information.
NOTES
Not only procedures for operation, inspection, and maintenance of this machine described in this manual
but also safety precautions that may pertain to the case where this machine is only used for specified
tasks.
Every circumstance incidental to use of this machine is unforeseeable, and therefore, cautions given in
this manual and on this machine do not necessarily cover every safety-related issue.
Necessary safety actions should be taken under your responsibility if operation, inspection, and
maintenance in a situation that is not described in this manual are performed.
Even in the above case, never attempt work or operations that this manual prohibits doing.

3. MACHINE OVERVIEW
3.1 SPECIFIED OPERATIONS
This machine is for use with the operations listed below.
•Crane operation
•Pick & Carry operation
This machine is a mobile crane which consists of a crawler type carrier and an upper structure of a boom
type crane.
This self-propelled crane is capable of moving (travelling) at the worksite and lifting an object weighing
within the rated total load for normal crane operation or pick and carry operation.
3.2 MACHINE CONFIGURATION
EXTERNAL VIEW
(1) Undercarriage In this manual, the terms front, rear, left and right refer to the travel
direction as viewed from the operator’s seat when the operator’s seat
is facing the front and the sprocket (a) is at the rear of the machine.
(2) Upper structure
(3) Safety device
Boom slewing motion is determined with the machine viewed from
immediately above; slew clockwise denotes right-handed motion and
slew counterclockwise denotes left-handed motion.
1-4

This machine is comprised of the units listed below.
[1] UNDERCARRIAGE
This is comprised of a travelling gear and blade.
[2] UPPER STRUCTURE (CRANE)
This is comprised of an engine, travelling operation unit, crane operation unit, telescoping system, derrick
system, slewing system, hook block, and winch system.
[3] SAFETY DEVICE
This is comprised of the following parts and devices: Over hoist detector/automatic stop device,
three-winding stop alarm/automatic stop device, moment limiter (working envelope limited), slinging rope
detachment protector, hydraulic safety valve, telescoping cylinder hydraulic automatic locking device,
derricking cylinder hydraulic automatic locking device, alarm buzzer, machine tip-over alarm device, level,
working status lamp, crane lock lever.
3.3 MACHINE FUNCTIONS
[1] UNDERCARRIAGE
• The carrier is equipped with crawlers which enables this machine to enter into rough or soft terrain.
• 2 travel lever operation enables not only direction changes, forward, backward, and right/left but pivot
and spin turns.
[2] UPPER STRUCTURE (CRANE)
• The upper structure allows continual 360 degree rotation.
• Due to extending/retracting, derricking up or down and/or swing operations of the boom, as well as raise
and lower operation of the winch, you can move the hoisted load to the designated location, subject to
staying within the rated total road and working radius.
1-5

4. QUALIFICATION FOR OPERATION
•A high incidence of occupational accidents during crane operation are reported.
Be aware that experienced engineers are no exception.
•Warnings and precautions defined in this manual shall be observed for safety assurance
during operation of the machine.
4.1 QUALIFICATION FOR CRANE OPERATION
Only personnel that have obtained the required license or training stipulated by laws and regulations
applicable to the place of use are qualified to operate this machine.
Contact the relevant government office or our sales service agency for further information.
1-6

5. TERMINOLOGY
5.1 DEFINITIONS OF TERMS
[1] RATED TOTAL LOAD
This is the maximum load that can be applied according to
boom length and angle. The load includes the mass
(weight) of hoisting accessories (hooks) slings, chains and
ropes etc.
[2] LIFTED LOAD
This is a load derived by subtracting the mass (weight) of
hoisting accessories (hooks) and sling etc, from the rated
total load, which is a maximum load for hoisting.
[3] WORKING RADIUS
This is a horizontal distance between the axis of slewing
and the hook centre.
[4] BOOM LENGTH
This is a distance between the boom primary pin and the
sheave pin of the end boom.
[5] BOOM ANGLE
This is an angle which the boom forms from horizontal.
[6] LIFTING HEIGHT ABOVE GROUND
This is a vertical distance between the hook bottom and the
ground with the hook raised to the upper limit.
1-7

5.2 DIAGRAM OF WORKING RADIUS AND LIFTING HEIGHT
•The diagram of working radius and lifting height shows the relationships the working radius of
this machine, boom angle, and lifting height above the ground with no object hoisted. The
diagram has been made allowing for no deflection in the boom.
1.Point A denotes a boom angle and point B denotes a lifting
height above ground in the figure at right.
The same working radius is applied to points A and B.
2. The “diagram of working radius and lifting height” shows the
relationships of the working radius, boom angle, and lifting
height at no load, allowing for no deflection in the boom.
A deflection occurs in the boom when an object is hoisted,
which causes the working radius to increase slightly.
The rated total load decreases with an increase in the
working radius. Actual crane operation requires the planning
of work, allowing for sufficient tolerance of more than that
shown in the diagram.
1-8

5.3 RATED TOTAL LOAD CHART
•All the values provided in the rated total load chart are based on the assumption that the
machine is placed on a level and firm surface.
•The values in the rated total load chart are determined based on the working radius allowing
for deflection that is developed when load is applied to the boom.
•When extending boom (3) even if only slightly, crane operation should proceed to the extent
of performance of “Boom (3)”.
•When half of the “
mark 1” on boom (3) passes boom (2), crane operation should proceed to
the extent of performance of “Boom (4)”.
•When half of the “
mark 2” on boom (3) passes boom (2), crane operation should proceed to
the extent of performance of “Boom (5)”.
•If the working radius exceeds that stated in the table even if only slightly, crane operation
should proceed with respect to the rated total load corresponding to the working radius in the
following table.
•The rated total load is a load including the mass of a hoisting accessory (hook: 90kg).
LC785M-8 Rated Total Load Chart
4.63m boom 7.38m boom 10.13m boom 12.88m
boom
15.63m
boom
Working
radius
(m) Stationary Pick & Carry Stationary Pick & Carry Stationary Pick & Carry Stationary Stationary
2.00 4900 2000 4900 2000 2600 1400 2000
2.10 4900 2000 4630 2000 2600 1400 2000
2.50 3800 2000 3760 2000 2600 1400 2000 1400
2.70 3310 1950 3410 1940 2520 1400 2000 1400
3.00 2900 1670 2980 1700 2310 1360 2000 1400
3.15 2640 1550 2800 1590 2220 1300 2000 1400
3.50 2290 1330 2420 1380 2010 1170 1890 1400
3.52 2270 1320 2400 1370 2000 1170 1880 1400
4.00 2000 1140 1750 1020 1650 1400
4.50 1670 960 1530 890 1450 1320
5.00 1400 810 1340 770 1280 1200
5.50 1180 690 1170 680 1130 1090
6.00 1000 590 1030 590 1010 990
6.27 910 540 950 550 940 940
6.50 890 510 900 900
7.00 780 440 800 820
7.50 670 380 710 750
8.00 580 320 630 680
8.50 490 270 560 610
9.00 410 230 500 560
9.02 410 230 500 560
9.50 440 500
10.00 390 450
10.50 340 400
11.00 300 360
11.50 260 320
11.77 260 300
12.00 280
12.50 240
13.00 210
13.50 200
14.00 200
14.52 200
1-9

The rated total load chart provides the maximum loads that the crane is capable of hoisting objects in
parallel with the length of the boom. The loads are specified by working radius.
[1] BOOM LENGTH
The following figures illustrate the condition of the booms, “(1) 4.63m Boom”, “(2) 7.38m Boom”, “(3)
10.13m Boom”, “(4) 12.88m Boom”, and “(5) 15.63m Boom” in the preceding boxes in the rated total load
chart.
1. “(1) 4.63m Boom”: All the booms are retracted.
2. “(2) 7.38m Boom”: With booms (3), (4), and (5) retracted, boom (2) is fully extended.
Boom (2) is to apply to crane operation with boom (2) extended even if only slightly.
3. “(3) 10.13m Boom”: With boom (2) fully extended, booms (3), (4), and (5) are extended 1/3 (half of the
“
mark 1” passes boom (2)).
Boom (3) is to apply to crane operation with booms (3), (4), and (5) extended even if only slightly.
1-10

4. “(4) 12.88m Boom”: With boom (2) fully extended, booms (3), (4), and (5) are extended 2/3 (half of the
“
mark 2” passes boom (2)).
Boom (4) is to apply to crane operation with half of the “
mark 1” on boom (3) passes boom (2).
5. “(5) 15.63m Boom”: All the booms are fully extended.
Boom (5) is to apply to crane operation with half of the “
mark 2” on boom (3) passes boom (2).
1-11

6. NECESSARY INFORMATION FOR SERVICE
The following information is required for us or our sales service agency at the time of requesting repair
service or ordering spare parts.
Machine serial number engraved on plate
Located at the bottom of operator cab.
Information of EPA ・Engine serial number engraved on plate
Located on the side of intake pipe.
EPA：Environmental Protection Agency
1-12