Maeda CC1485S-1 Operation Manuals

585E-OM1712-02

OPERATION MANUAL

CRAWLER CRANE

Serial No. 7048 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.

CC1485S

-1

CONTENTS

Item

Page

INTRODUCTION

1. INTRODUCTION 2

2. FOR SAFE USE OF THE MACHINE 3

3. MACHINE OVERVIEW 4

3.1 SPECIFIED OPERATIONS

3.2 MACHINE STRUCTURE 4

3.3 MACHINE FUNCTIONS

4. QUALIFICATION FOR OPERATION 6

4.1 QUALIFICATION FOR CRANE OPERATION 6

5. CRANETERMINOLOGY 7

5.1 TERMS AND DEFINITIONS 7

5.2 DIAGRAM OF WORKING RADIUS AND LIFTING HEIGHT

5.3 RATED TOTAL LOAD CHART 9

SAFETY

1. BASIC PRECAUTIONS 14

1.1 PRECAUTIONS BEFORE STARTING WORK 14

1.2 PREPARING FOR SAFE OPERATION 15

1.3 PRECAUTIONS FOR FIRE PREVENTION 17

1.4 CAUTIONS IN GETTING ON AND OFF THE MACHINE 18

1.5 OTHER PRECAUTIONS

2. OPERATION RELATED PRECAUTIONS 20

2.1 PRECAUTIONS ON WORK SITE

2.2 CAUTIONS WHEN STARTING ENGINE 23

2.3 PRECAUTIONS FOR STARTING CARRIER AND OPERATING CRANE 25

2.4 CAUTIONS DURING CRANE OPERATION 29

3. TRANSPORT PRECAUTIONS 37

4. MAINTENANCE PRECAUTIONS

4.1 PRECAUTIONS BEFORE MAINTENANCE 39

4.2 PRECAUTIONS DURING MAINTENANCE 43

5. SAFETY LABEL LOCATIONS

Item

Page

OPERATION

1. NAME OF EACH SECTION 60

1.1 MACHINE UNITS

1.2 CRANE OPERATION UNITS 61

1.2.1 MACHINE MONITOR COMPONENTS 62

2. EXPLANATION OF ALL EQUIPMENT 63

2.1 MACHINE MONITOR 63

2.1.1 MONITOR BASIC ACTION AND DISPLAY

2.1.2 WARNING DISPLAY 72

2.2 SWITCHES 75

2.3 OPERATION LEVERS AND PEDALS 85

2.4 MOMENT LIMITER (OVERLOAD PREVENTIVE DEVICE) 89

2.4.1 CONFIGURATION OF MOMENT LIMITER 89

2.4.2 FUNCTIONS OF MOMENT LIMITER 90

2.4.3 MOMENT LIMITER OPERATION AND CANCELING (RECOVERY) 91

2.4.4 MOMENT LIMITER FUNCTIONS 94

2.4.5 MOMENT LIMITER CANCELING SWITCH 102

2.5 OVERWINDING PREVENTION DEVICE

104

2.6 AIR CONDITIONER HANDLING 105

2.6.1 COMPONENTS OF CONTROL PANEL 105

2.6.2 AIR CONDITIONER OPERATION METHOD 109

2.6.3 PRECAUTIONS IN AIR CONDITIONER USE 111

2.6.4 INSPECTION AND MAINTENANCE OF AIR CONDITIONER INSTALLED ON THE MACHINE

111

2.7 CAR RADIO HANDLING

112

2.7.1 EXPLANATION OF THE EQUIPMENT 112

2.7.2 CAR RADIO OPERATION METHOD

115

2.7.3 PRECAUTIONS IN CAR RADIO USE 117

2.8 FUSE 118

2.9 FUSIBLE LINK

119

2.10 CONTROLLER 120

2.11 CAB FRONT WINDOW

121

2.12 DOOR 123

2.13 HAMMER FOR EMERGENCY ESCAPE 124

2.14 CAP AND COVER WITH LOCK 125

2.15 BATTERY ROOM DOOR 126

2.16 LEFT COVER

126

2.17 RIGHT COVER 127

2.18 MACHINERY COVER 128

2.19 HOLDER FOR OPERATION MANUAL

128

2.20 GREASE PUMP HOLDER 129

2.21 CUP HOLDER

129

2.22 RETRACTABLE SEAT BELT HANDLING 129

iii

Item

Page

3. OPERATION

130

3.1 PRE-OPERATION INSPECTION 130

3.1.1 CHECKING BEFORE STARTING ENGINE

130

3.1.2 CHECKING BEFORE STARTING ENGINE 133

3.1.3 CHECKING AFTER STARTING ENGINE 147

3.2 OPERATIONS AND CHECKS BEFORE STARTING ENGINE 150

3.3 STARTING ENGINE 151

3.4 OPERATIONS AND CHECKS AFTER STARTING ENGINE

153

3.4.1 WARM-UP OPERATIONS FOR ENGINE 153

3.4.2 WARM-UP OPERATIONS FOR HYDRAULIC EQUIPMENT 154

3.5 STOPPING ENGINE 156

3.6 BREAK-IN OPERATION 157

3.7 MACHINE TRAVELLING POSTURE 157

3.8 STARTING (FORWARD AND BACKWARD)/STOPPING THE MACHINE 158

3.9 CHANGING DIRECTION OF THE MACHINE 161

3.10 SLEWING THE MACHINE 162

3.11 PARKING THE MACHINE 163

3.12 INSPECTION AND CHECK AFTER COMPLETING WORK

164

3.12.1 AFTER STOPPING ENGINE 164

3.12.2 LOCKING 164

3.13 CAUTIONS IN DRIVING 165

3.14 PRECAUTIONS BEFORE CRANE OPERATION 168

3.15 OPERATION BEFORE CRANE WORK

170

3.16 CRANE OPERATION POSTURE 172

3.17 HOISTING AND LOWERING OPERATION 173

3.17.1 NORMAL HOISTING AND LOWERING OPERATION 173

3.17.2 HOISTING AND LOWERING OPERATION AT HIGH SPEED 174

3.17.3 HOISTING OPERATION WITH HOOK STOWAGE SWITCH 175

3.18 BOOM DERRICKING OPERATION 176

3.19 BOOM TELESCOPING OPERATION 177

3.20 SLEWING OPERATION

179

3.21 ACCELERATOR OPERATION 180

3.22 CRANE STOWAGE OPERATION

182

3.22.1 CRANE STOWAGE OPERATION AT THE TIME OF SIMPLE STOWAGE OF

HOOK BLOCK

182

3.22.2 CRANE STOWAGE OPERATION AT THE TIME OF NORMAL STOWAGE OF

HOOK BLOCK

185

3.23 PROHIBITED OPERATIONS DURING CRANE WORK 187

3.24 OPERATION DURING TRAVELLING HOIST 189

3.24.1 PRECAUTIONS IN OPERATION DURING TRAVELLING HOIST

189

3.24.2 OPERATION POSTURE DURING TRAVELLING A HOISTED LOAD 190

3.24.3 OPERATION OF TRAVELLING A HOISTED LOAD WORK

191

3.24.4 CANCEL OPERATION OF TRAVELLING HOIST OPERATION POSTURE 191

Item

Page

4. HANDLING OF WIRE ROPE 192

4.1 CRITERIA FOR WIRE ROPE REPLACEMENT

192

4.2 WINCH WIRE ROPE REEVING SYSTEM AND GROSS RATED LOAD 194

4.3 MEASURE TO TAKE WHEN WINCH WIRE ROPE IS TWISTED

195

5. TRANSPORTATION 197

5.1 LOADING/UNLOADING 197

5.1.1 LOADING 198

5.1.2 FIXING THE MACHINE 200

5.1.3 UNLOADING

201

5.2 HOISTING MACHINE 202

5.2.1 HOISTING MACHINE WITH BOOM LOWERED 202

5.2.2 HOISTING MACHINE WITH BOOM 204

5.3 CAUTIONS DURING TRANSPORTATION 205

6. HANDLING WHEN COLD

206

6.1 PREPARING FOR LOW TEMPERATURE 206

7. LONG-TERM STORAGE 208

7.1 BEFORE STORING MACHINE

208

7.2 DURING STORAGE 208

7.3 AFTER STORAGE

209

8. TROUBLESHOOTING 210

8.1 WHEN FUEL RUNS OUT 210

8.2 PHENOMENONS THAT ARE NOT A FAULT

211

8.3 WHEN BATTERY HAS DISCHARGED 212

8.3.1 BATTERY HANDLING PRECAUTIONS

212

8.3.2 REMOVING/INSTALLING BATTERY 213

8.3.3 CAUTIONS IN CHARGING BATTERY 214

8.3.4 STARTING ENGINE WITH BOOSTER CABLE 215

8.4 WHEN SUCH A PHENOMENON OCCURS 217

8.4.1 ELECTRICAL COMPONENTS

217

8.4.2 MACHINE BODY COMPONENTS 219

8.4.3 ENGINE COMPONENTS 220

8.4.4 MOMENT LIMITER COMPONENTS

222

8.4.5 OVERWINDING PREVENTION DEVICE 223

Item

Page

INSPECTION AND MAINTENANCE

225

1. PRECAUTIONS FOR MAINTENANCE 226

2. BASIC MAINTENANCE

228

3. LEGAL INSPECTION 232

4. PERIODIC REPLACEMENT OF CRITICAL PARTS 233

5. CONSUMABLES 234

6. OTHER REPLACEMENT PARTS 235

7. USE OF FUEL AND LUBRICATING OIL

236

7.1 USE OF FUEL AND LUBRICATING OIL ACCORDING TO TEMPERATURES 236

8. STANDARD TIGHTENING TORQUE 238

8.1 STANDARD TIGHTENING TORQUE LIST 238

9. LIST OF ITEMS FOR INSPECTION AND MAINTENANCE 239

10. MAINTENANCE PROCEDURES 241

10.1 INITIAL 500 HOUR MAINTENANCE 241

10.2 PRE-OPERATION INSPECTION 241

10.3 IRREGULAR MAINTENANCE 242

10.4 MAINTENANCE EVERY 50 HOURS 258

10.5 MAINTENANCE EVERY 250 HOURS

260

10.6 MAINTENANCE EVERY 500 HOURS 264

10.7 MAINTENANCE EVERY 1000 HOURS 274

10.8 MAINTENANCE EVERY 1500 HOURS 279

10.9 MAINTENANCE EVERY 3000 HOURS 279

10.10 MAINTENANCE EVERY 4000 HOURS

280

10.11 MAINTENANCE EVERY 5000 HOURS 281

11. VENTING AIR IN HYDRAULIC CIRCUITS 284

12. RELIEVING INTERNAL PRESSURE OF HYDRAULIC CIRCUIT 288

13. ATTACHING/DETACHING SINGLE-FALL HOOK 289

13.1 ATTACHING SINGLE-FALL HOOK 289

13.2 DETACHING SINGLE-FALL HOOK 292

SPECIFICATIONS

295

1. PRINCIPLE SPECIFICATION LIST

296

2. SPECIFICATION DIMENSIONAL DRAWING 297

3. RATED TOTAL LOAD CHART

298

4. WORKING RADIUS/LIFTING HEIGHT 301

Item

Page

FLY-JIB

303

1. PRECAUTIONS OF FLY-JIB OPERATION 304

2. SAFETY LABEL LOCATION

306

3. FLY-JIB EACH SECTION 309

4. FLY-JIB INSTALLATION AND STOWAGE 310

4.1 INSTALLATION OF FLY-JIB 311

4.2 CHANGING OF FLY-JIB TILT ANGLE 316

4.3 EXTENDING AND RETRACTING NO.2 FLY-JIB

321

4.3.1 EXTENDING NO.2 FLY-JIB CONFIGURED 0 DEGREE OR 20 DEGREES TILT ANGLE

321

4.3.2 EXTENDING NO.2 FLY-JIB CONFIGURED 40 DEGREES OR 60 DEGREES TILT ANGLE

322

4.3.3 RETRACTING OF No.2 FLY-JIB 324

4.4 STOWAGE OF FLY-JIB 325

4.5 REMOVAL OF FLY-JIB 330

4.6 INSTALLATION OF FLY-JIB 334

5. HANDLING MONITOR AND MOMENT LIMITER

342

5.1 NAMES OF MONITOR DISPLAY 342

5.1.1 MONITOR DISPLAY IN FLY-JIB MODE 342

5.1.2 MONITOR DISPLAY WHEN FLY-JIB IS STOWED 344

5.2 MOMENT LIMITER FUNCTIONS 345

5.2.1 DISPLAY FOR FLY-JIB MODE SWITCHING 346

5.3 SETTING OF OPERATING CONDITIONS 347

6. OPERATIONS 348

6.1 CAUTIONS FOR FLY-JIB OPERATION 348

7. TROUBLESHOOTING 349

7.1 LIST OF ERROR CODES

349

7.2 WHEN SUCH A PHENOMENON OCCURS 350

8. INSPECTION AND MAINTENANCE 351

8.1 CHECKING BEFORE OPERATION 351

8.2 MAINTENANCE EVERY 50 HOURS 353

9. SPECIFICATIONS

354

9.1 SPECIFICATION TABLE 354

9.2 SPECIFICATION DIMENSIONAL DRAWING 355

9.3 RATED TOTAL LOAD CHART 356

9.4 WORKING RADIUS/LIFTING HEIGHT 357

9.4.1 WORKING RADIUS/LIFTING HEIGHT (WHEN FLY-JIB ANGLE IS 0 DEGREES AND 20 DEGREES)

357

9.4.2 WORKING RADIUS/LIFTING HEIGHT (WHEN FLY-JIB ANGLE IS 40 DEGREES AND 60 DEGREES)

358

INTRODUCTION

1. INTRODUCTION 2

2. FOR SAFE USE OF THE MACHINE

3. MACHINE OVERVIEW

4. QUALIFICATION FOR OPERATION 6

5. CRANE TERMINOLOGY 7

1. INTRODUCTION

Thank you for purchasing Maeda Crawler Crane CC1485S-1. This manual is a guidebook for safe and effective use of this machine. This manual describes the procedures and precautions to follow for proper operation and maintenance of the machine. Be sure to read this manual and understand the procedures for machine operation, inspection, and maintenance thoroughly before using this machine. Failure to observe the basic precautions described in this manual may lead to serious accidents.

Improper operation of this machine can lead to serious injuries or death.

Operators and maintenance personnel must always read this manual prior to operation or maintenance of this machine. Keep this manual in a designated place so that all personnel that work on this machine will read it for reference periodically.

• Avoid operating this machine before understanding this manual thoroughly.

• Keep this manual at hand so that you can read it when necessary.

•

If you lose or damage this manual, contact Maeda or our sales service

agency immediately to order a new one.

•

This manual should always accompany this machine upon transfer of the

machine to the next owner.

If the machine is resold to a third party without informing us in advance, no warranty whatsoever shall be applicable.

•

This manual is based on the data that was available at the time of the

creation of the manual.

The information in

this manual, including maintenance specifications,

tightening torq

ue, pressure, measuring method, adjustment value, and

illustrations, are subject to change without prior notice due to continuous machine improvement.

These changes may affect the machine maintenance procedure. 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 THE MACHINE" on page 3

and "SAFETY" on pages 13 and above.

[Storage place of the operation manual]

Magazine box at the left side of operator's seat

2. FOR SAFE USE OF THE MACHINE

This manual classifies the risks into the following categories for easy understanding of this

manual and the safety labels attached to this machine.

This denotes that there is an imminent hazard which will cause

serious injury or death.

It also provides information on how to avoid such hazard.

This denotes that there is a hazard which can cause serious injury or

death.

It also provides information on how to avoid such hazard.

This denotes that there is a potential hazard which may cause minor

or moderate injury or serious damage to the machine.

It also provides information on how to avoid such hazard.

This manual also uses the following indications to provide other precautions for handling the

machine and helpful information.

This denotes that failure to properly handle the machine may damage

it or shorten its life.

This denotes helpful information.

The operations, inspections, maintenance and safety precautions for this machine that are

outlined in this manual are relevant to specified tasks.

Thus, the precautions given in this manual and on this machine do not necessarily cover

every safety issue.

When performing the machine operation, inspection or maintenance in a situation that is not

covered by this manual, be sure to take necessary measures and actions for safety on your

own.

Even in the above case, never attempt work or operations that this manual prohibits you to

do.

CAUTION

NOTES

3. MACHINE OVERVIEW

3.1 SPECIFIED OPERATIONS

This machine is to be used for the following operations:

• Crane operation

• Travelling suspension operation

This machine is a mobile crane consisting of the upper swiveling body equipped with a boom

type crane and the lower crawler type carrier.

This self-propelled crane is capable of moving (travelling) in the worksite and lifting an object

weighing up to the rated total load.

3.2 MACHINE STRUCTURE

(1) Carrier

(2) Upper slewing body

(3) Safety device

In this manual, the front, rear, left and right directions are

defined with the basic reference direction that the operator sits

on the operator's seat with the carrier's sprocket (A) at the rear

and viewing the machine's traveling direction (forward). For the

slewing of boom (upper slewing body), the boom slewing

directions (clockwise for right and counterclockwise for left)

are determined as viewed from above the machine.

EXTERNAL VIEW

This machine is composed of the following units and systems:

[1] CARRIER

Consists of the traveling system.

[2] CRANE

Consists of the engine, travelling operation unit, crane operation unit, boom telescoping unit,

boom derricking unit, slewing unit, hook block and winch system.

[3] SAFTEY DEVICE

Comprises the overwinding prevention device, over-unwinding prevention device, overload

preventive device, slinging rope detachment protector, hydraulic safety valve, telescoping

cylinder hydraulic automatic locking device, derricking cylinder hydraulic automatic locking

device, alarm buzzer, machine body inclination alarm, leveling instrument, working status lamp,

and the crane and travelling operation locking lever.

3.3 MACHINE FUNCTIONS

[1] CARRIER

• The carrier is of a crawler type, which facilitates running in rough terrain and soft ground.

• Operating the two travelling levers enables not only travelling direction changes (forward,

backward, right and left) but also pivot turns and spin turns.

[2] UPPER SLEWING BODY

• The upper slewing body is allowed to perform 360 degrees slewing by slewing operation.

• Through the combined use of the telescopic boom, derrick and slewing systems besides the

winch system, the crane can raise and lower the hook block to move the lifted object to the

desired position within the rated total load and the specified working envelope.

4. QUALIFICATION FOR OPERATION

• A high incidence of occupational accidents in crane operation has been reported.

Be aware that experienced engineers are also 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.

5. CRANE TERMINOLOGY

5.1 TERMS AND DEFINITIONS

[1] RATED TOTAL LOAD

The maximum load that can be applied according to the

boom length and angle. The load includes the mass

(weight) of hoisting accessories (hooks) and slinging

ropes.

[2] RATED LOAD

A load derived by subtracting the mass (weight) of hoisting

accessories (hooks) and slinging ropes from the rated total

load, and can be hoisted.

[3] WORKING RADIUS

A horizontal distance between the axis of slewing and the

hook centre.

[4] BOOM LENGTH

Refers to the distance between the boom primary pin and

the sheave pin of the boom end.

[5] BOOM DERRICK ANGLE

Refers to the angle which the boom forms with the horizon.

[6] LIFTING HEIGHT ABOVE GROUND

A vertical distance between the hook bottom end and the

ground with the hook raised to the upper limit.

5.2 DIAGRAM OF WORKING RADIUS AND LIFTING HEIGHT

• The working radius/lifting height shows relationship between working radius, boom

angle and lifting height above ground of this machine with no load hoisted, and

deflection of the boom is not included.

• Stage "4" in the diagram of working radius and lifting height indicates that one half

portion of the " mark" is extruding from the 4th stage boom.

1. The point A in the figure at right indicates the boom angle

and point B the lifting height above ground.

The working radius of points A and B are the same.

2. The "diagram of working radius and lifting height" shows

the relationships between 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 widen slightly.

The rated total load decreases with increase in the

working radius. Actual crane operation requires the

planning of work, allowing for sufficient clearance more

than that provided in the diagram.

5.3 RATED TOTAL LOAD CHART

• Rated total load chart is based on level, hard ground.

• Values given in the rated total load chart are based on the working radius including

the deflection of boom under actual load.

•

When boom (3) is extended even for a minimal extent, perform the work within the

capacity indicated in the column of "boom (3)".

• When boom (4) is

extended even for a minimal extent, perform the work within the

capacity indicated in the column of "boom (4)".

• When more than one-half of the "

mark" of boom (4) is exposed from boom (3),

perform the work within the capacity indicated in the column of "boom (5)".

•

If working radius exceeds the value of Working Radius column in the chart by any

extent, work should be performed within the rated total load in the next column of

Working Radius.

• The value of a rated total load including the mass of hoisting accessories (hook: 90

kg (applicable for 2-fall and 4-fall wire rope) or 20 kg (dedicated for Single-fall hook

wire).

The rated total load chart provides the maximum loads that the crane is capable of hoisting

objects depending on boom length by working radius.

[1] BOOM LENGTH

In the Rated Total Load Chart, the "4.745 m boom (1)", "7.625 m boom (2)", "10.505 m boom

(3)", "13.385 m boom (4)" and "16.265 m boom (5)" given in columns on the top denote the

respective states of the following figures:

1. "4.745m boom (1)"

: All the booms are retracted.

2. "7.625 m boom (2)": Booms (3), (4) and (5) are retracted, while boom (2) alone is fully

extended.

If boom (2) is extended even to a small extent, perform the work in the capacity indicated in

this column.

3. "10.505 m boom (3)": (4) and (5) are retracted, while booms (2) and (3) are fully extended.

If boom (3) is extended even to a small extent, perform the work in the capacity indicated in

this column.

4. "13.385 m boom (4)": Booms (2) and (3) are fully extended, while booms (4) and (5) are

extended to an intermediate length ( mark) is exposed half way from boom (3).

If booms (4) and (5) are extended even to a small extent, perform the work in the capacity

indicated in this column.

5. "16.265 m boom (5)": All the booms are fully extended.

When more than one-half of the " mark" of boom (4) is exposed from boom (3), perform the work within the capacity indicated in this column.

SAFETY

1. BASIC PRECAUTIONS 14

2. OPERATION RELATED PRECAUTIONS

3. TRANSPORT PRECAUTIONS

4. MAINTENANCE PRECAUTIONS 39

5. SAFETY LABEL LOCATIONS

All the safety precautions defined in this manual should always be read and observed.

Failure to follow the safety precautions can cause

serious personal injury or death.

1. BASIC PRECAUTIONS

Incorrect operation and servicing may result in serious bodily accidents. Before starting

operation and servicing, read this manual and safety labels to observe their warnings and

precautions.

1.1 PRECAUTIONS BEFORE STARTING WORK

OBSERVE THE MANUAL AND SAFETY LABELS

• Read well and understand this manual as well as the safety labels attached to various parts of this Machine. Attempt to

drive/operate without understanding fully may result in wrong operation that may cause personal or equipment

accidents.

• Fully understand the proper use and inspection/maintenance

procedures, and perform the work safely.

•

Make sure this manual and the safety labels attached to

various parts of this Machine are legible all the time.

Whenever illegibility or loss occurs,

order us or our sales

service agency and put the safety label back to the original location.

QUALIFICATION FOR OPERATION

• The operators of this machine are required to have adequate qualification.

Be sure to acquire the qualification before engage in the operation.

See "INTRODUCTION 4. QUALIFICATION FOR OPERATION

" for details of the

operational qualification.

•

When performing operations using this machine, be sure to carry the "mobile crane

operator's license" or the "completion certificate of skill training course for the operation of light duty mobile cranes all the time. Also, when performing a slinging operation, always carry the "completion certificate of skill training course for slinging operation".

• The operators are requested to receive education and training of the handling methods and

other subjects at the office, and obtain sufficient operation skills before work.

COMMIT TO SAFE OPERATION

•

Follow the instructions and signs given by the manager and work supervisor, and observe

safety first during work.

• Follow the crane work basics during work.

• Always make sure to carry out inspections before using this machine.

• Do not work under bad weather for instance strong wind, thunder or mist.

•

Do not drive under any condition when you are overtired, under the influence of alcohol or

after taking soporific drugs.

• Follow all of the workplace rules, safety regulations and operation method sequences during

operations and inspection/maintenance.

• Pay attention to surrounding conditions and pedestrians all the time during operation.

Whenever pedestrian approaches unwarily, abort the operation once, and t

ake a measure

such as issuing a warning.

•

When operating, be mentally prepared for unexpected situation so that you can take

measures immediately.

• Never attempt any use out of the capabilities and purposes described in this manual under

any circumstances.

• Observe the designated rated total load and work range when operating.

•

Never attempt inattentive driving, harsh driving or awkward operation under any

circumstances.

• Pull out the key when leaving the operator's seat.

1.2 PREPARING FOR SAFE OPERATION

PROVIDE SAFETY DEVICES FOR SURE

• Check to ensure that all guards, covers, mirrors and rear-view camera are attached properly.

Repair immediately if damaged.

• Understand how to use the safety devices well and use properly.

• Do not detach the safety devices under any circumstances. Keep control to achieve proper

function all the time.

• Improper use of the safety devices may lead to serious accidents.

• Do not rely too much on the safety devices whilst operating.

PREPARE FOR ABNORMALITY

• Make sure to carry out inspections and maintenances, and

make an effort to prevent accidents before happening.

• Whenever you feel an abnormality in the Machine, abort the

operation immediately, ensure safety and report to the

manager.

•

Assign in advance who takes which solution to prevent

secondary accident.

•

Never operate the Machine when fuel or hydraulic oil is

leaking from the Machine. Report

the manager about the

abnormality, and repair the leaking point of the

fuel/hydraulic oil completely before use.

The fuel for this Machine is diesel fuel. Be especially careful for the presence of fuel leak.

•

Before leaving the Machine, lower the hoisted load to the

ground, stop the engine and pull out the starter key.

TEMPORARY STORAGE WHEN ABNORMALITY IS FOUND WITHIN MACHINE

In case the Machine is found with an abnormality and is therefore stored temporarily waiting for service, apply

following measures to notify all persons in the office that "the use is prohibited due to failure."

•

Put on warning tags on the operation lever and other

applicable parts.

Write clearly the information such as abnormality contents, name and contact of the storage manager, and the term of storage.

• Keep it immovable when parking by, for instance, putting the

blocks on the rubber tracks as pawls.

• Pull out the engine key and keep it with you.

WEAR PROTECTIVE EQUIPMENT AND CLOTHES SUITABLE FOR WORK

• Always put on a helmet, safety shoes and safety belt.

• Make sure to wear the necessary protective equipment

suitable for the relevant working condition.

• Do not wear loose garments or access

ories as these may

get caught on an operation lever or any protrusions which

could lead to unexpected movement of the Machine.

USE OF MACHINE THAT WAS RENTED OR PREVIOUSLY USED BY SOMEONE ELSE

Check the following subjects in writing before using any Machine that was rented or previously used by someone else.

In addition, check the inspection record table for the maintenance conditions such as the

periodic inspections. (1) Crane capacity (2) Crane maintenance conditions (3) Behaviors and disadvantages unique to the crane (4) Other subjects that require attention while operating

(a) Operating condition of the brakes, clutch and others (b) Presence/absence and lighting condition check-up of lighting and rotating lamps (c) Operating condition of hook, winch, boom and others

ALWAYS KEEP THE MACHINE CLEAN

• If the Machine remains contaminated with soil, sand, oil and

grease, it may cause slipping,

tripping or tumbling when

getting on the Machine or maintenance servicing. Thus,

wipe off the soil, sand, oil and grease sticking to the

Machine to keep it clean all the time.

•

When washing the machine with water or cleaning it with steam, prevent its electrical devices from being directly

splashed with water. Water entering the electrical system is dangerous and will cause electrical devices to malfunction resulting in faulty or improper operations. If

the Machine

malfunctions, it may behave unexpectedly, resulting in

serious injury.

CLEAN AND TIDY UP THE OPERATOR'S CABIN.

• Before getting in the cabin, wipe off shoe soles to remove dirt, oil and grease. Stepping on the

pedals with shoes that are contaminated with dirt, oil and grease may cause slipping,

resulting in an accident.

• Do not leave parts or tools in the operator's cabin. The parts and tools left in the cabin may

cause unexpected actions, resulting in serious injury.

• Do not attach suction cups to the window glass. It may work as a lens to cause fire.

• Do not bring any dangerous substances (such as combustibles and explosives) in the cabin.

• Do not use a mobile phone during running or operating. It may disturb operations, resulting in

serious injury.

PROVISION OF FIRE EXTINGUISHER AND FIRST AID BOX

Always observe the following to prepare for injuries and fires.

• To prepare in case of fire, decide on a location and install a

fire extinguisher, and make sure to read the label for terms of usage.

• Decide the location to store the first aid box. In addition,

inspect the first aid box periodically and replenish the

contents as necessary.

• Decide the measures to take upon an injury or fire accident.

• Decide how to contact the emergency address (for instance

the emergency physician, ambulance or fire department), and put up the contact address at designated position so

that anyone can make the contact.

1.3 PRECAUTIONS FOR FIRE PREVENTION

WHAT TO DO IF A FIRE OCCURS

• Turn the starter switch OFF to stop the engine.

• Get out of the Machine by using a handrail and steps.

• Do not jump off the Machine. You may fall and get hurt.

PREVENTING FIRE

• Fire caused by fuel, oil, anti-freezing fluid, or wind-washer

liquid

Attempt to let a fire approach the fuel, oil, anti-

freezing fluid, or

wind-washer liquid may result in catching fire. Strictly observe the following.

• Do not smoke or use fire near the machine.

• Before refueling, be sure to stop the engine.

• Do not leave the site when replenishing the fuel or oil.

• Close and securely tighten the cap of fuel tank and hydraulic oil tank.

• Do not spill fuel on an overheated surface and parts of electric system.

• After refueling, cleanly wipe off spilt fuel and oil.

• Put rags and other combustibles smeared with oil in a safe container and store it in a safe place.

• Use incombustible cleaning oil for the objects such as the components, and do not use diesel fuel, petrol or anything else that may catch fire.

• Do not weld or gas flame-cut piping and tubing containing flammable solutions.

• Store the fuel and oil in a specified well-ventilated location and prohibit public access.

• Before performing grinding or welding of the Machine, move inflammables to a safe place.

• Fire due to deposition or adherence of combustibles.

• If any of such combustibles as dead leaves, chips, paper litters, and charcoal dust is deposited on or sticking to the peripheral area of engine exhaust manifold, muffler, battery or under-cover, remove it.

• To prevent fire caused by bonfire sparks or other types of fire that can be caught, remove such combustibles as dead leaves, chips, paper litters, and charcoal dust that may be deposited on or sticking to the peripheral area of cooling units (radiator and oil cooler).

• Fire originating from electric wiring

Fire may be incurred by a short-circuit of electric system. Strictly observe the following.

• Keep every connection of electric wiring clean and fix it securely.

• Check for any loosening or damage of electric wiring on a daily basis, and if any loosened connector or wiring clamp is found, retighten it and repair or replace any damaged electric wiring.

• Fire originating from piping

Check the clamps and cushions of each hose and tubing to ensure that they are securely fixed.

Any loosening may give rise to

vibration during operation, rubbing with other parts to damage

hose, or spouting of high pressure oil, resulting in fire or physical injury.

• Explosion triggered by lighting fixture

• When inspecting fuel, oil, battery electrolyte and coolant water, use a lighting apparatus of explosion-proof specifications.

• When disconnecting power source from the Machine, follow the

instructions described in this manual.

1.4 CAUTIONS IN GETTING ON AND OFF THE MACHINE

USE A HANDRAIL AND STEPS WHEN GETTING ON AND OFF THE MACHINE

When getting on and off the Machine, be sure to observe the following precautions in order to prevent physical accidents such as slipping and falling or tumbling.

• Use the arrow-

marked handrails and steps shown in the

figure at the right when getting on and off the Machine.

•

When getting on and off the Machine, always face the

machine, allow the three parts of limbs (both feet and a hand, or a foot and both hands) to come into contact with the hand rails and steps to hold your body.

• Before getting on and off the Machine, check the handrails and steps for any damage or loosening, and for any oil or dirt sticking to the Machine surface.

When oil or dirt is

deposited, do not fail to thoroughly clean it so that the

surface is not slippery.

Repair any damage and retighten

any loosened bolt.

•

Do not grasp operating levers and locking levers when

getting on and off the Machine.

• Never

step on the engine hood and cover that are not

treated with anti-skidding coating.

• Do not get on or off the machine while holding a tool in hand.

• Do not jump on or off the Machine. Also, do not get on or off the moving Machine.

• Even if the Machine

unexpectedly begins to move

unmanned, never jump on it to stop it.

CAUTIONS IN STANDING UP FROM THE OPERATOR'S SEAT OR LEAVING THE MACHIHNE

• Before standing up from the operator's seat for opening or

closing the front or ceiling window, detaching or attaching

the lower window, or adjusting the operator's seat, be sure

to retract the crane and set the lock lever (1) to "LOCK"

position (L) and stop the engine.

Inadvertently touching operating levers may cause the

machine to suddenly move and invite serious injury.

• When leaving the Machine, be sure to retract the crane, set

the lock lever (1) to "LOCK" position (L), and stop the

engine. Also apply every lock, be sure to bring the key back, and store it in a specified place.

EMERGENCY EXIT OF THE OPERATOR'S CABIN

•

If by any chance, the cabin door fails to open, use the provided hammer to break the window glass and escape

through the opening.

•

Before getting out, remove the broken fragments of glass

from the window frame to avoid getting hurt.

Also, watch

your step not to slip on broken fragments of glass.

1.5 OTHER PRECAUTIONS

CAUTION AGAINST BEING CAUGHT

In the periphery of the upper slewing body and crane unit, the

clearance varies with the motion of derricking cylinder and

winch. If being caught in it, serious injury may occur.

Keep persons away from all rotating and telescoping

sections. Never allow your body or part of it to get in the following gaps:

• Between the boom and the upper slewing body

• Between the boom and the derricking cylinder

• Between winch drum and wire rope

• Between each sheave and wire rope

REMODELING THE MACHINE IS PROHIBITED

Do not remodel the Machine without our written consent under any circumstances. Particularly, partial welding of the Machine may damage the safety device. The remodeling raises a safety issue, so consult us or our sales service agency beforehand. We cann

ot be held responsible for any personal injury or failure caused by remodeling the

Machine that was performed without consulting us.

CAUTIONS ON ATTACHMENTS AND OPTIONAL UNITS

• We cannot be held responsible for any personal injury, failures or property

damage of

attachments and optional units that are not recognized by us.

• Installing an attachment or optional units may give rise to safety and legal issues, and thus the customer is kindly requested to consult with us or our sales service agency beforehand.

• Depending on the combination of attachments and optional units they may cause interference with operating cabin and machine parts. Interference with the Machine during operation may cause serious injury. Check to ensure that the attachments and

optional units to be used

would interfere with the Machine, and use them within the interference-free range.

•

Never fail to read the descriptions on the attachments and optional units given in the

instruction manual of the installed attachment as well as this manual.

CAUTIONS ON THE CABIN GLASS

• If the cabin glass is broken, immediately stop operation and have it repaired.

• When the ceiling window is scarred, the visibility is spoiled and probability of breakage rises. Replace the scarred ceiling window glass at an early stage. Leaving the scars increases the risk of breakage by any object falling onto the ceiling window, resulting in injury.

CAUTIONS ON RUNNING THE ENGINE INDOORS

To prevent the risk of petrol

poisoning from starting the

engine/handling fuel and cleaning oil/painting indoors or at a

location with bad ventilation, open the windows and exit

doors.

If the ventilation is insufficient even after opening the

windows and exit doors, set up a ventilation fan.

2. OPERATION RELATED PRECAUTIONS

2.1 PRECAUTIONS ON WORK SITE

SURVEY AND SAFETY ASSURANCE OF WORK SITE

A number of risks that may cause serious injury are imbedded in a work site. Before starting work, check the following matters beforehand to ensure that no danger is present at the

worksite:

• When working near straw-

thatched roofs, dead leaves or dead grass, beware of those

fire-catching object.

• Investigate the ground and road surface condition of the worksite and decide the best working method. At a site where risk of landslide or rock fall exists, do not operate the Machine.

• Flatten the inclination of the worksite before starting work.

• When working over the roadway, enforc

e "keep out" by, for instance, assigning guides or

surrounding the site by barriers, and ensure the safety of the traffic vehicles and pedestrians.

•

Enforce "keep out" to prevent people from entering the worksite and apply measures to

prevent people from approaching. Attempt

to approach the moving Machine may result in

pinching or hard collision by contact, and may result in serious accidents and deaths.

• When running on a shallow bottom stream or weak ground, examine the water depth, water flow velocity

as well as ground condition and land features in advance in order to avoid

hazardous place for traveling and operation.

•

The ground of a zone adjacent to a cliff, road shoulder, and deep ditch is likely to be

loosened, and thus it should be avoided for running and performing operation. The ground in such a zone may be collapsed by the mass and/or vibration of the Machine, which may trip or fall. Be especially careful after rain, use of dynamite, or earthquakes, as the ground will be unstable.

• The ground of an area near an earth fill or in the vicinity of a dug gutter may be collapsed by the mass and/or vibration of the Machine, resulting in the trip or fall of the Machine. Before

starting operation, take necessary measures to make the ground intact and safe.

SECURING VIEWS

This Machine is equipped with such devices as mirror and rear view camera that provide

improved views. Though some areas can hardly viewed from the operator's seat, and thus be cautious in operation. Running and operating in places

with poor visibility prevent the operator from detecting

hazards around the Machine and recognizing work site status, and thus may cause serious

injury.

When running and operating the Machine in place with poor visibility, strictly observe the

following:

• If adequate view cannot be secured, deploy personnel as a marshaller as required. In that case, limit the number of signaling marshaller to one person.

• In a dark place, turn on the working light and head lamps equipped with the Machine, and use additional lighting devices as required to light up the work site.

• When visibility is spoiled by fog, snow, rain or sand dust, stop the operation.

• If the mirrors mounted on the Machine are contaminated, clean them and adjust the field of view to secure visibility.

•

If the rear view camera is contaminated, clean the lens to secure clear vision around the

periphery.

RECOGNIZING THE SIGNAL OF MARSHALLERS AND STREET SIGNS

• To ensure the identification of weak road shoulder and ground, install sign boards. Further,

for a place with poor visibility, appoint marshaller as required. In that case, limit the number of signaling marshaller to one person.

The operator should pay attention to sign boards and follow the marshaller's instructions.

• All the pe

rsonnel involved should understand the meaning of every signal, sign and sign

board.

Voltage of

Electrical Cable

Minimum Safe

Distance

Low voltage

(Distribution

line)

100/200V

6,600V 2m

Special voltage

(Transmission

line)

22,000V

66,000V

154,000V

187,000V

275,000V

500,000V

11m

BEWARE OF ELECTRICAL CABLE ABOVE

• Do not let the Machine touch the electrical cables above.

High voltage cables may also inflict electrical shock by close proximity.

• Slinging operators are likely to suffer electrical shocks.

Always observe the following to prevent accidents.

• If the boom or the wire ropes may contact an electrical cable in the workplace, consult the electricity company and make sure that the measures (for instance placement of a guard personnel or application of wrap tubes and warning tags to the electrical cable) stipulated by the related regulations are taken before starting work.

• Put on rubber soled shoes and rubber gloves, and be careful that the body parts unprotected by rubber or other insulation do not contact the wire rope or the Machine frame.

• Place a guide and let him/her watch so that the boom, wire rope or Machine frame does not go near the electrical cable too much. Before

doing so, decide the emergency signs and other

necessities.

• Ask the electricity company for the voltage in the electrical cables at the worksite.

• Secure the separation (safe distance) shown in the following table between the boom/Machine frame and electrical cables.

MEASURES WHEN CHARGE ACCIDENT OCCURS

If a charge accident occurs, react calmly and take measures in the following procedure.

1. Report

Immediately report to the electricity company or related management company, and receive

instructions for the power transmission stop, emergency procedures and related matters.

2. Evacuation of related personnel from vicinity of Machine

Evacuate all personnel, including workers, from the vicinity of the machine to prevent secondary disasters. Personnel who suffered elec

trical shock by holding a sling rope, guide rope or other conductor

when the Machine was charged should evacuate by his/her own effort. Do not try to help personnel affected by electric shock.

Otherwise, secondary electrical shock

accident will occur.

3. Emergency procedure

In the case of personnel receiving an electric shock due to the machine being electrically charged, do the following: (1) If the machine is operational, immediately move it to a safe location away from the cause of the

electrical charge. Take care not to break or disrupt the distribution power cable.

(2)

Move the machine to a safe location, and after making sure the machine is not electrically

charged, take the affected personnel to the hospital.

4. Measure after accident

After the accident, do not reuse as is.

Such attempt may cause unexpected accidents and

enhances failures.

Ask us or our sales service agency for repair.

CAUTIONS WHEN OPERATING CRANE IN LOCATION WITH HIGH OUTPUT MICROWAVE EMISSION

Operating the crane near high output microwave emission equipment such as a radar or TV/radio broadcast antenna causes the crane construction to be exposed to the microwave

and generates induced current, therefore is very dangerous. In addition, the mechatronics may become haywire.

Establish grounding between the Machine frame and the ground when working in such

location. In addition, slinging operators are requested to wear rubber boots and rubber gloves

since risk of electrical shock by contacting parts such as the hook or wire exists.

BEWARE OF ASBESTOS DUST

Inhalation of asbestos dust may result in lung cancer. This Machine does not contain asbestos, but asbestos may be

found in the wall, ceiling or other construction locations within the worksite of this Machine.

In addition, be careful of the

following when working with a material that may contain

asbestos.

•

Put on designated dust free mask and/or other protection

equipment where necessary.

• Do not use compressed air for cleaning.

• Spray water

when cleaning to prevent airborne asbestos

dust.

•

Always work at windward location when operating the

Machine at a site that may contain asbestos dust.

• Do not allow unauthorized personnel to approach the work site.

• Strictly observe the assigned rules

related to the worksite

and environmental standard.

2.2 CAUTIONS WHEN STARTING ENGINE

PAY ATTENTION TO WARNING SIGNS

When warning sign "DANGER. DO NOT OPERATE!" is put

up, the Machine is being inspected and under maintenance. Do

not start the engine and refrain from touching operating

levers. Disregarding the warning sign to operate the Machine

may give rise to the danger of involving the preparing personnel into the rotating parts or movable parts of the

Machine, resulting in serious injury.

INSPECTING AND ADJUSTING BEFORE STARTING ENGINE

Before starting engine at the beginning of the day, perform items under "Operations 3.1

PRE-OPERATION INSPECTION" and conduct the following inspections. Omitting these inspections may cause serious bodily accidents.

• Never fail to execute the inspection before starting work.

• Remove the contamination on the window glass surface to secure good view.

• Clean the lens surface of head lamps and working lights and ensure that they are properly lit.

• Check the coolant water level, fuel level, engine oil pan level, air cleaner for any clogging and electric wiring for any damage.

• Adjust the operator's seat to the operator's posture for easy work. Also, check seat belts and their mounting fixtures for any damage or abrasion.

Refer to the descriptions under "OPERATION 3.1.2 [11] ADJUSTING THE OPERATOR'S SEAT".

•

Adjust the mirrors to the best position for commanding a good view of rear scene and the

drum from the driver's seat.

Refer to the descriptions under "OPERATION 3.1.2 [12] ADJUSTMENT OF MIRRORS ".

• Adjust the rear view camera to the best angle to check the image on the monitor display and command a good view of the scene in the rear.

Refer to the descriptions under "OPERATION 3.1.2 [14] ANGLE ADJUSTMENT OF REAR VIEW CAMERA ".

• Check pedals for any dirt or foreign matter deposited on their movable parts and ensure that they can function satisfactorily.

• Check instruments to ensure that they function properly and each of the operating levers is in its neutral position.

Always repair if any result of the above is faulty.

CAUTIONS BEFORE STARTING ENGINE

• Make sure nobody is on or under the Machine and in its

vicinity and nobody or no hazard is found within the boom slewing range.

• Do not allow anyone other than the operator to get on the Machine.

•

Start the engine only when the operator is sitting on the

operator's seat.

•

Check to ensure that each of the operating levers is in its

neutral position.

• Check to ensure that lock lever (1) is in the "LOCK" position (L).

• Honk the horn for warning before starting the engine.

• Do not start the engine by short-circuiting the starter circuit.

This may cause a fire.

CAUTIONS UNDER COLD WEATHER

•

Remove snow from and defrost the surface of the slewing gear, boom and around winch, and ensure that their

movements before starting work.

• Before starting the engine, ensure that the automatic glow lamp goes off.

• Operating the Machine without sufficient engine warm-up

causes slow response of the Machine to the operation of

levers and pedals, and thus unexpected motion may occur against the operator's will. Do not fail to execute the engine warm-up. The engine requires an adequate warm-

up time

especially in cold climates.

• When the battery electrolyte is frozen, do not recharge the battery or start the engine with another power source. Such act may cause the battery to catch fire or explode. Defreeze

the battery electrolyte and check for fluid leak before

re-

charging or starting the engine by using another power

supply.

•

After end of the work, wipe off and put on a cover if

substances such as condensation, snow or mud are stuck to the wire harness, connector(1), switches, sensors or similar part. If the infiltrated condensation and/or similar substance freeze, the Machine may operate improperly upon the next use and cause unexpected accidents.

CAUTIONS WHEN STARTING UP USING BOOSTER CABLE

Wrong booster cable connection method may result in fire, so always observe the following.

•

When using a booster cable for engine start, perform the

person operation by one person on the operator's seat

and another on the battery side.

• When starting the engine using other Machine, be careful to

prevent contact between the normal Machine and broken

Machine.

• Keep the starter switch key of both the normal Machine and the broken Machine in "OFF

" position when the booster

cable is connected.

• Do not connect to wrong side [connecting (+) to (-), (-) to (+)] when connecting the booster cable.

• Start connecting from (+)

terminal first, but start

disconnecting from (-) terminal (ground) first.

• Connect the ground to the (-) terminal of the broken Machine when connecting the ground as the last procedure.

Refer to the description under “OPERATION 8.3.4

STARTING ENGINE WITH BOOSTER CABLE ".

•

Avoid contact between clips of the booster cable, and

contact between a clip and the Machine when disconnecting the booster cable.

2.3 PRECAUTIONS FOR STARTING CARRIER AND OPERATING CRANE

INSPECTION BEFORE STARTING OPERATION

Omitting the inspections after starting the engine results in delay to discover the Machine

abnormalities, and may result in accidents and Machine damages. Inspection should be carried out in a clear area. No unauthorized persons should be able to approach the Machine.

• Ensure that motion of the Machine coincides with the indication of pattern card.

• Check the operation status of devices, running status of the Machine, winch wind up/down, boom derricking, and crane operating status such as telescoping and slewing.

• Inspect the sound, vibration, heat and odour of the Machine, and check for instrument errors, air leaks, oil leaks, fuel leaks, water leaks and other bad factors. Be especially careful for the fuel leak.

• Always repair broken part whenever an abnormality is found.

Attempt to use without servicing may result in unexpected accidents and/or Machine failures.

CAUTIONS ON MACHINE FORWARDING/REVERSING AND SLEWING

Always observe the following to prevent serious injuries and

accidental death when moving the Machine.

• Set the Machine to the travelling posture in the right figure. Do not allow the machine to travel without retracting the hook block.

• Before traveling, move the sprocket to the rear of the machine.

Leaving the sprocket in front of the Machine causes the direction of actual running to be in reverse of the running

lever, and thus the Machine may move toward undesired direction, resulting in serious bodily accidents.

• Make sure the boom is fully lowered and retracted.

• When moving the Machine for a short distance, fix the hook

block in the retracting position at the tip of the boom. When moving it for a long distance, fix the hook block to the hook holder at the front end of the upper slewing body.

Refer to the descriptions under "OPERATION 3.7 MACHINE TRAVELLING POSTURE ".

•

Keep the door and window of operator's cabin always fixed

either open or closed. Nevertheless, when being in such an area

where any flying object may come into the cabin, be sure to

keep them closed.

• If any person is staying around the Machine, they may come into

contact of the Machine or may be caught by it, resulting in a

serious bodily accident.

Before starting to move, strictly observe the following:

• Operate the Machine only when the operator is sitting on the operator's seat.

• Do not fail to wear the seat belt. Otherwise, the operator may be forced to jump out of the cabin because of an emergency braking, resulting in injury.

• Make sure to check around again so that no one or no object is in the vicinity before starting to move.

•

Before starting to move, be sure to honk the horn to warn

people around the Machine.

• When ru

nning, check to ensure that the traveling alarm

sounds normally.

• When there is a view-

obstructing range in the rear of the

Machine, appoint a marshaller to ensure that no contact

accident will occur and slew the machine by paying adequate attention.

Even if the Machine is equipped with mirrors and the rear view

camera, be sure to appoint a marshaller.

CAUTIONS WHEN TRAVELLING

Always observe the following to prevent serious injuries and

accidental death when moving the Machine.

• Set the Machine to the travelling posture in the right figure.

Refer to the preceding subsection "CAUTIONS ON

MACHINE FORWARDING/REVERSING AND SLEWING".

•

Do not attempt looking sideways or other dangerous act

when driving.

• Do not over speed, start moving/stopping/slewing suddenly, or meander since such acts are dangerous.

• During traveling, keep an adequate distance from persons,

structures and other machines to prevent any contact

accident.

• When running on a rough terrain or a steep slope, be sure

to turn the automatic deceleration switch OFF (for

cancellation).

Operating the Machine while the switch is

turned ON raises the engine revolution speed, and the

vehicle speed may suddenly be increased.

• Avoid moving over any obstacle. Travel as slow

ly as

possible when moving over an obstacle for unavoidable

reason. Since the Machine tends to tumble more easily in the lateral direction rather than in the longitudinal direction, never attempt to move over an obstacle that will cause the Machine to inclined to leftward or rightward.

• When traveling on a rough terrain, keep the vehicle speed

at low level to avoid tumbling and also avoid any abrupt

change of traveling direction. Such may cause the Machine to lose balance or damage the Machine or nearby object.

•

When running on a bridge or crossing over a structure, check the withstand strength of the bridge or viaduct

against the Machine mass beforehand.

Further, when

running on a public road, check with the competent

authorities and follow their instructions.

•

When operating the Machine in a place where machine

height is restricted such as in a tunnel, in a building, under an overpass or cables, pay close attention to prevent the

Machine and crane from coming into contact of those objects and operate the Machine slowly.

BE CAREFUL WHEN TRAVELLING OVER SLOPE

Always observe the following to prevent serious injuries and

death accidents when travelling over a slope for unavoidable reason.

• When running on a slope, be sure to store the hook block in

the hook holder at the front end of the upper slewing body to form a running posture.Any simplified fixation of the hook at the tip of boom gives rise to the risk of loosening during

running. Refer to the descriptions under "OPERATION 3.7 MACHINE TRAVELLING POSTURE

" for the travelling

posture of the Machine.

•

When running on a slope having an inclination of 10 degrees or more, climb the slope in the reverse direction and run downhill in the forward direction.Thus, always

allow the Machine front to face the valley when running on

a slope.Climbing the slope in the forward direction and

going downhill in the reverse direction cause the Machine

to be unstable, giving rise to the risk of tumbling or lateral

skidding.

• When running on an inclined terrain, d

irect the machine

perpendicular to the slope and never change the direction

on the slope or drive parallel to the slope. Practice safe travelling by for instance lowering to the plain land and divert.

•

Always keep such condition during running that the

chine can stop any time when it slips or becomes

unstable.

• When running downhill, lower the engine revolution and set the running lever close to the neutral position and run in a low speed.

• When running on a ground covered with grass and leaves or

on a wet steel plate, keep the speed to minimal. If the

ground in such condition is inclined only slightly, it is

extremely slippery.

• If the engine comes to a sudden stop, immediately return each operating lever to its neutral position, and then restart

it.

BE CAREFUL OF TRIPPING ON UNSTABLE GROUND

Always observe the following to prevent serious injuries and death accidents when travelling

over an unstable ground for unavoidable reasons.

• Do not enter soft ground area. The machine may get stuck.

• The ground near cliff, roadside and deep gully is unstable, so avoid going near such ground

as much as possible. The Machine may trip or fall when the ground loosens due to mass and/or vibration of the Machine. Be especially careful after rain, use of dynamite, or earthquakes, as the ground will be unstable.

• Avoid going near the earth fills or vicinity of dug gutter that are instable.

Crumbles caused by mass and/or vibration of the Machine may cause the Machine to tilt.

CAUTIONS WHEN TRAVELLING SNOW COVERED OR FROZEN GROUND

Always observe the following to prevent serious injuries and death accidents when travelling

over snow covered ground or frozen road for unavoidable reason.

• The snow covered grounds and frozen roads cause slips even when the inclination is small,

so decrease the speed when travelling and avoid sudden starting/stopping/slewing. Uphill and downhill are especially likely to cause slips and thus dangerous.

• Frozen ground tends to be weak with the increase of atmospheric temperatu

re, and may

cause the Machine to tumble or obstruct the operator to get off. Be very careful.

• Moving into an area covered with deep snow may cause the Machine to tumble or dive into

the snow. Be cautious of erroneously deviating outward from the road shoulder or driving into a snow drift.

• Running on a snowbound site may encounter the risk of tumbling or collision because of an

invisible road shoulder or snow-covered installations. Be very careful.

• Refrain from directly touching metal surface with your

hands or fingers in cold and harsh

weather conditions. Touching metal surface may result in skin freezing to the metal surface.

• Remove snow and/or ice laid on the Machine that causes the safety nameplates to be hard to read. Be especially careful to securely remove those that are on the boom and thus may

fall.

CAUTIONS WHEN PARKING

• For parking, select an area with flat and solid ground.

• For parking, select an area without the risk of landslide, rock fall

and water submersion.

• When parking, set

the Machine to the "traveling posture" as

shown in the figure at the right.

• Make sure the boom is fully lowered and retracted.

• When parking the Machine for a short period of time, fix the hook block in the retracting position at the tip of the boom. When parking for a long time, fix the hook block in the hook holder at the front end of the upper slewing body.

•

When inevitably stopping the machine on an inclined area,

strictly observe the following:

• Make sure the boom is fully lowered and retracted.

• Direct the boom toward the valley.

• To keep the Machine immobile, apply a block as a chock.

• When leaving the Machine, strictly observe the following:

•

Set the lock lever (1) to "LOCK" position (L), and stop the

engine.

• Be sure to close the cabin door, and apply every lock. Do not

fail to remove the starter key to prevent the Machine from

operated by other personnel without approval, and keep it in a

specified place.

2.4 CAUTIONS DURING CRANE OPERATION

INSPECTION BEFORE STARTING WORK

Check that the safety devices and crane operate properly.

•

Operate each of the operation levers, pedals and switches under no load, and check that

operations take place without any abnormality. Repair immediately if any abnormality exists.

• Check such safety devices as moment

limiter (overload prevention device), over winding

prevention device and over-

unwinding prevention device to ensure that they function

normally.

CAUTIONS WHEN SETTING MOMENT LIMITER

• In the moment limiter, the moment is calculated on the assumption that the machine is

placed horizontally.

If crane work is performed without the machine being placed horizontally, no forecast or

warning is issued even when the rated total load is approached. Never fail to check the inclination of the Machine by using the level on monitor.

•

When using the moment limiter, check to ensure that the indicators of boom angle, boom

length and actual load are interlocked with the crane motion to give correct values. If the

crane is used with no correct indication given, correct measurement results cannot be

obtained, causing serious physical injury due to tumbling or damage of the machine.

• When using the moment limiter, be sure to check that the setting of wire falls of the moment limiter matches the wire falls of the crane. If the number of falls does not match each other, either alter the setting of wire fall count moment limiter or alter that of crane so that the count matches each other. Using the moment limiter wi

thout matching its number of falls may

cause the breakage of wire rope, resulting in a serious bodily accident.

• Do not change the setting carelessly during measurement with the moment limiter.

Otherwise, correct measurement results cannot be obtained, causing serious physical injury

due to tumbling or damage of the machine.

CAUTIONS FOR SELECTING A PLACE TO INSTALL

Always place the Machine on a level, stable and solid ground. It is dangerous to install on any of the following places:

• Simple asphalt pavement

• Thin concrete pavement

• Flagstone pavement

• Areas where under the pavement surface is hollow due to water erosion and the top soil appears to be hard but soft in the ground

• Soft ground near a road shoulder or dug hole

• Slope

CAUTIONS WHEN WORKING ON A SLOPE

When inevitably perform operation on a slope, provide an

earth fill (B) to create a horizontal, solid and strong footing for installing the Machine in order to prevent it from tumbling. Attempting a diagonal hoisting without

ensuring the

horizontal installation of the Machine not only disturbs the

normal functioning of the moment limiter (overload prevention

device), but also affect the Machine with an unexpected

force, resulting in tumbling or damage of the Machine.

FOLLOW INSTRUCTIONS AND SIGNS WHEN WORKING

• When operating the crane, appoint a work supervisor and mutual signs beforehand, and follow the work supervisor

and signs during operation.

•

When operating at a driver's blind spot, especially follow

the instr

uctions and signs of the work supervisor and

operate with caution.

•

When operating the crane, there is a danger of colliding

with slewing boom and upper slewing body and of the gaps

between movable parts of the derrick cylinder that may

catch body parts such as your arm or finger.

The operator is requested to make sure no one is within the

working radius of the crane before operating.

CAUTIONS UNDER COLD WEATHER

• Remove snow from and defrost the surface of the slewing gear, boom and around winch, and

ensure that their movements before starting work.

• Check the brake of winch to ensure that it works properly.

• Operating the Machine without sufficient engine warm-

up causes slow response of the

Machine to the operation of levers and pedals, and thus unexpected motion may occur

against the operator's will. Do not fail to execute the engine warm-up. The engine requires an adequate warm-up time especially in cold climates.

For details of engine warm-up, refer to "OPERATION 3.4.1 WARM-UP OPERATIONS FOR ENGINE" and "OPERATION 3.4.2 WARM-

UP OPERATIONS FOR HYDRAULIC

EQUIPMENT".

• Avoid revving up the engine immediately after starting it.

• Deposited snow within the crane operation range may cause tumbling of unloaded objects or catching feet of operators around the Machine. First

remove snow before starting a crane

operation.

• In cold weather conditions, check that the

load before being hoisted is not frozen to the

ground or other substance. Attempt to hoist without knowing the load is frozen and stuck to the ground or other substance is dangerous.

• At the end of the work, if substances such as condensation, snow or mud are stuck to the wire harnesses, connectors, switches, sensors or similar parts, wipe them off and put covers on them. If

the infiltrated condensation and/or similar substance freeze, the Machine may

operate improperly upon the next use and cause unexpected accidents.

PAY ATTENTION TO WEATHER INFORMATION

• A risk of lightning exists in case of a thunderstorm, so abort operating the crane, immediately

lower the load and retract the boom.

• Wind can cause the hoisted load to move back and forth, which could cause the machine to become unstable. If the hoisted load is affected, immediately lower the load and retract the boom.

• If the maximum instantaneous wind speed is 10 m/s or greater, abort operating the crane, immediately lower the load and retract the boom.

• Even when the maximum instantaneous wind speed is below 10 m/s

, the bigger the hoist

load, the higher the hoist load position, or the longer the boom can increase the effect from the wind. Be very careful during the work.

• When operating the extended boom, the winch wire rope and electric signal cables are prone to be blown up by winds, and thus be cautious of the operation. Similarly, the peripheral area of a high-rise building, winds blow its sides and may gather their velocity much higher, which deserve attention.

• When a load such as a steel plate that has a large area exposed to wind is being hoisted, the wind arriving from front/rear/side of the boom may cause the Machine to trip or damage the boom. Be very careful during the work.

• The higher the boom is derricked, the higher the probability of tumbling backward is raised by wind blowing from ahead. Thus, adequate attention is required in the operation.

• When an earthquake occurs, abort the operation and wait until it is over.

The following table indicates approximate relation between the wind speed and wind

effect. The wind speed mentioned in the weathercast is mean wind velocity (m/s) during 10 minutes at 10m above the ground.

Force Wind velocity (m/s)

Effect On Land

Less than 0.3

Smoke rises vertically.

0.3 - below 1.6

Wind motion visible in smoke.

1.6 - below 3.4

Wind felt on exposed skin.

3.4 - below 5.5

Leaves and small twigs move in constant motion.

4 5.5 - below 8.0

Dust and loose paper blow up. Small branches begin to move.

5 8.0 - below 10.8

Bushes with leaves start to sway. Waves form on the face of pond/swamp.

6 10.8 - below 13.9

Large branches begin to move. Whistling heard in electrical wires. Use of umbrella becomes difficult.

7 13.9 - below 17.2

Whole trees start to shake. Effort needed to walk against the wind.

17.2 - below 20.8

Twigs broke from trees. Progress impeded.

20.8 - below 24.5

Light structure damage. Slates blown off.

24.5 - below 28.5

Trees uprooted. Considerable structural damage.

28.5 - below 32.7

Widespread structural damage.

CAUTIONS WHEN SLINGING

• Check the following before hoisting a load.

Attempt to hoist the load without checking may result in serious accidents by dropping the load or tripping.

• Observe the values in the rated total load chart.

• Hoist from the centre of gravity of the load.

• Check that the wire rope of the hook block is vertical.

• When the load leaves the ground, stop winding up the load once and check whether the

load is stable.

• Before hoisting a slung load, always check whether the sling wire rope "retainer device" of the hook block is hung correctly. If the "retainer device" is not hung, the wire rope may leave the hook block and cause the load to fall resulting in a serious accident.

• Larger wire rope angle when hoisting the load increases force that applies to the wire rope even when the load weight is unchanged, thus may cause the wire rope to snip. Give due consideration to slinging operation so that excessive force is not applied to the wire rope.

• Hoist only 1 piece of load at a time.

Attempts to hoist more than one load may cause the hoist bracket to hit and damage the

other hoisted load, or the loads move and lose balance, causing serious accidents such as tripping. Do not hoist more than 1 piece of load even if the total combined weight is within the rated total load.

• Hoisting of lengthy load causes the load to lose balance and is dangerous.

In the case of such load, hoist vertically by using a cramp, or achieve balance of the hoisted

load by applying a rope to both ends of the load.

CAUTIONS WHEN HANDLING WIRE ROPE

• Wire ropes can wear out from constant use or old age, so be sure to

inspect every time before work, and replace

immediately if at or beyond the replacement standard. At the same time, inspect the sheave at the tip of the boom and the sheave of the hook block. Damaged sheaves accelerate the damage of the wire ropes.

• Use wire ropes specified by us.

• Otherwise, the operator may get wounded by snipped wires that are sticking out.

Always wear leather gloves when handling the wire rope.

• Do not use a wire rope of which any of the following applies:

• 10 % or more of wires of 1 strand (except a filler wire) of a

wire rope are snipped.

• The wire rope diameter abrasion is beyond 7

% of the

nominal diameter.

• Kinked wire rope.

• Excessively deformed or corroded wire rope.

• Affected by heat or sparks.

CAUTIONS WHEN OPERATING CRANE

• Stability of a crane is decisively critical in the transverse direction of the carrier. In

the diagonal

direction, although stability is increased, exceeding the rated load may result in damage of the

boom or Machine body. Do

not turn the moment limiter (overload prevention device) off, even if

operating in the diagonal direction.

• Be sure to check that the override switch is at the "OFF" (auto) position before operating the crane.

Do not attempt to operate the crane when the override switch is at the "ON" (cancel) position. The override switch is permitted to be at the "ON" (cancel) position o

nly during inspection or

maintenance works.

•

Perform work while paying attention to the display and warning of the monitor of moment limiter

(overload prevention device).

•

Attempt to work beyond the capacity of the Machine may cause serious accidents and failures

caused by for instance tripping or fluctuation. Observe the rated total load chart when operating the crane.

• Perform the crane operation slowly.

Sudden use of lever or accelerator may cause risks such as shaking, dropping of the load or

collision with the surroundings. Be especially careful to be slow during the slewing operations.

• When operating the crane, appoint a work supervisor and perform the work under the supervisor's instructions.

Follow the supervisor's instructions on the method and procedure for the work. Determine the method for details of mutual signs and follow the signs.

• Hoisting of lengthy load causes the load to lose balance and is dangerous. In the case of such load, apply a rope to both ends of to stabilize the hoisted load.

• Do not allow unauthorized personnel to approach the working radius or under the load because of risks of falling load and contact with load. This could cause a serious bodily accident. Also consider that the working radius increases when the load is hoisted and the boom is deflected.

• Operations requiring more than the machine performance can cause accidents or failure. Crane operations must always be carried out according to the rated total load chart.

• Be careful to prevent the wire rope and/or hoisted load from contacting an obstacle such as a tree or steel when hoisting a load. If caught by an obstacle, do not forcibly wind up the hoist load, but untangle the caught part before winding up.

• Do not pull laterally, pull toward you or hoist diagonally. Such

attempt may cause the crane to

tumble or get damaged.

• It is dangerous to operate the crane under bad weather or at places where the view is not clear. Work lamps or other lighting devices should be used in dark places. When the view is bad because of bad weather (rain, fog, snow, etc.), stop the operation and wait until the weather recovers.

• Do not use for purpose, for instance raising a person using a crane, other than the true purpose.

• If the alarm buzzer of the over-hoist detector sounds, immediately release your hand off the winch lever. Winding-up of the hook block stops. Then

, operate the winch lever "downward" (push it

forward) to wind down the hook block. Also, a boom extending operation hoists the hook block. For the distance from the boom and hook block, provide a sufficient allowance for operating the crane.

• When the boom is extended, the hook block is wound up. Operate the winch lever "downward" and extend the boom while lowering the hook block.

• If an overload is caused during work, operate the winch lever "downward" and wind down the winch to unload.

Do not violently raise or lower the boom. Such attempt may cause serious accidents by tumbling.

• The volume of the hydraulic oil in each of the cylinders changes depending on the temperature. By leaving idle with a load being hoisted, as the time passes by the oil temperature drops and the hydraulic oil volume decreases, and changes such as the boom derrick angle decrease and boom length decrease may occur. In that case, execute boom derricking operations and boom extension operations appropriately to correct.

• Do not leave the operator's seat when a load is hoisted. When leaving the operating position, first unload and set the lock lever to "LOCK" position.

• When the hook block is not used, wind up the winch. The hook block of an empty load may hit operators near the load.

• Operation while hoisting a vibro compactor or other vibration generating attachment is in principle

prohibited. The winch or other unit may be damaged by the vibration of the attachment.

CAUTIONS ABOUT HIGH TEMPERATURE OIL WHEN OPERATING CRANE

When hydraulic oil temperature exceeds 80°C, high pressure hoses and seals can be

damaged by heat, and it may cause burning to skin from oil spray. If temperature of hydraulic oil exceeds 80°

C, stop the operation and wait until the oil cools

down. Continuous crane operation for a high lifting height with the accelerator pedal depressed will

increase the hydraulic oil temperature. Take special care during this operation.

CAUTIONS WHEN OPERATING WINCH

• Select a suitable number of wire rope falls to the hook and

boom length to the mass of hoisted load.

Refer to "OPERATION 4. HANDLING OF WIRE ROPE"

for details.

•

Do not allow persons to enter the area below the hoisted

load.

•

When hoisting a load, always stop once at the "takeoff"

position where the hoisted load leaves the ground. Check subjects such as load stability and load force, then hoist up the load.

• Do not pull laterally, pull toward you or hoist diagonally. Such atte

mpt may cause the crane to tumble or get

damaged.

• Overwinding of the hook block may result in collision with

the boom, snipping the wire ropes and causing the hook

block and load to fall and may lead to serious accidents. Take care not to overwind the hook block.

• Do not use the winch drum wire that is wound up irregularly. If wound up irregularly, not only the wire rope gets damaged and the lifetime is shortened, but it may snip the wire rope and causes serious accidents. Observe the following precautions to avoid wire rope from winding up irregularly.

• Do not let the hook block tumble on the ground.

•

When lowering the hook block for a long distance for

underground works, be sure to leave more than 3 turns of the wire rope on the winch drum.

• When decelerating from a high-speed hoisting, slacken the accelerator pedal to lower the engine revolution, and then slowly return the right-hand side machine operation lever. A sharp returning of the right machine operation lever while leaving the revolution at a high leve

l causes the hook to

jump up due to the rapid deceleration shock, resulting in an irregular winding.

•

Use the winding and unwinding operations in the

high-speed mode when winding or unwinding the hook only. Winding and unwinding a hoisted load in the high-speed mode may cause such a serious accident as damage of the boom or frame, or tumbling of the Machine.

• If the wire rope is twisted and causes the hook block to turn, fully eliminate the twist before work.

Refer to the description under "OPERATION 4.3

MEASURE WHEN WINCH WIRE ROPE IS TWISTED".

CAUTIONS WHEN OPERATING BOOM

• Perform boom operation lever operation as slowly as

possible. Especially avoid sudden lever operations when the load is hoisted, which may cause the load to waggle and give large impact to the Machine, and thus may damage the crane or trip the Machine.

•

When the boom is lowered, the working radius increases,

and the rated total load that can be hoisted decreases. When working while raising/lowering the boom,

pay extra

attention so that the mass of the load at the time the boom is most lowered does not cause overloading.

• Pulling

of the load laterally by raising/lowering, and/or

extracting/retracting the boom is prohibited. Do not attempt to do the above under any circumstances.

• When telescoping the boom, be cautious while checking the winding of the hook block.

• When the boom is extended, the working radius increases,

and the rated total load that can be hoisted decreases. When

working while extending/retracting the boom, pay

extra attention so that the mass of the load at the time the

boom is most lowered does not cause overloading.

CAUTIONS DURING SLEWING OPERATION

• Check the safety in the vicinity and honk the horn before slewing.

• Perform the slewing lever operation as slowly as possible. Make

sure to start smoothly, slew at low speed, and stop

quietly. Especially avoid sudden lever operations when the load is hoisted, which may cause the load to waggle and cause the Machine to lose balance, and thus may damage the crane or trip the Machine.

• Attempts to pull the load towards the machine or let the load stand up by slewing operation are strictly prohibited. Do not attempt to do the above under any circumstances.

• Be careful to prevent the wire rope and/or hoisted load from contacting an obstacle such as a tree or steel when hoisting a load or slewing.

If caught by an obstacle, do not forcibly wind up the hoist

load, but untangle the caught part before winding up.

COOPERATION HOISTING IS PROHIBITED AS A GENERAL RULE

Cooperative hoisting, where two or more cranes are used to hoist a single load, is prohibited as

a general rule. Cooperative hoisting is a highly dangerous operation that may invite tumbling of the Machine due to deviated center of gravity, fall of hoisted load and damage of the boom.

If cooperation hoisting is required for unavoidable reasons, discuss and establish a work

scheme under the responsibility of the user, let the worker fully acknowledge the work method and procedures, and only proceed under the direct leadership of the work supervisor. Also, observe the following cautions:

• Use the cranes of same model.

• Choose the Machine model that can handle sufficiently larger load than the load to be hoisted.

• Make sure only one person gives signals.

•

Limit the crane operations to single operations as a rule, and do not attempt any slewing

operation.

• Appoint one responsible sling operator who is most experienced.

CAUTIONS FOR WORK AT WORKPLACE WHERE LIFT BELOW GROUND LEVEL IS PERFORMED

• When lowering a wire rope in work underground, leave at least three loops of wire rope on the winch drum.

• Make sure to give signals.

• Perform crane operation with extra care.

CAUTIONS ON TAVELING WITH HOISTED LOAD

Hoisted load traveling operation is in principle forbidden, because it is extremely unstable and

dangerous. When inevitably performing a traveling with a hoisted load, observe the following. Negligence of the precautions may cause serious bodily accident.

• Strictly observe the precautions described in the instruction manual.

Refer to the descriptions under "OPERATION 3.24.1

PRECAUTIONS IN OPERATION

DURING TRAVELLING HOIST ".

• Carefully observe the precautions on the operation details for the working posture prescribed in the instruction manual.

Refer to the descriptions under "OPERATION 3.24.2

OPERATION POSTURE DURING

TRAVELLING HOIST ".

• As to the hoisted load, limit its weight within an allowance and assure its clearance above

ground.

• For a traveling operation, appoint marshallers.

• Remove any obstacle on the operation path and allow no operator to trespass the path.

• Operating for a distance exceeding the specified boom length is prohibited.

• Since the rated total load refers to the maximum value, suppress the load to a safe level in

accordance with operating situation.

• To perform a traveling operation with a hoisted load, keep the engine revolution to an idling

low speed so that the load will not swing and set the traveling speed to the low mode (1st speed) to run slowly. Refrain from suddenly starting or stopping, or shifting to a high-speed mode (2nd speed).

• During traveling with a hoisted load, do not shift the vehicle running speed mode or perform

crane operation.

3. TRANSPORT PRECAUTIONS

CAUTIONS DURING TRANSPORT

When transporting the Machine, there is a risk of inviting a serious bodily accident incurred by

an accident during transportation. Strictly observe the following when transporting the Machine.

• Depending on the type of crane installed, the mass, height and total length of the machine

are varied, and thus check these details.

•

When traveling on a bridge or passing over a structure, check in advance the bridge and

viaduct to ensure that they can withstand the mass of the trailer and the machine, and firm up the transportation route.

• When traveling on a public road, notify the competent authority to receive permission for the

transportation.

• The Machine may require disassembled transportation in accordanc

e with related

regulations (such as the enforcement ordinance of the Road Traffic Act). Contact us or our

sales service agency when conducting the transportation.

CAUTIONS WHEN LOADING OR UNLOADING

Pay particular attention to the loading or unloading operation of the Machine, which may invite such an accident as

tumbling or falling of it.

When conducting a loading or unloading of the Machine,

strictly observe the following precautions:

• Select an area with horizontal and solid ground for setting the Machine. In

addition, keep enough distance from the

roadside.

• Use the ramps under 15° or smaller angle. In addition, decide the clearance between ramps to meet the center of the crawler.

•

Use the ramps that have fully strong width, length and

thickness, and that enable safe loading/unloading.

Reinforce with blocks or other substances if the ramps

deflect much.

• Remove the mud and other substances from the footing to prevent the Machine from skidding over the ramps. Remove the substances stuck on the ramps such as grease, oil or ice, and keep clean.

Be especially careful on the rainy days when slips may

easily occur.

• Be sure to set the switch of automatic deceleration to OFF

(cancel).Turning the automatic deceleration switch ON

rapidly levy up the engine revolution, resulting in a sudden start of acceleration, and thus it is very dangerous.

• When loading or unloading the Machine, be sure to set the Machine to a traveling posture and fix the hook block to the Machine body by using wire ropes.

Refer to the descriptions under "OPERATION 3.7

MACHINE TRAVELLING POSTURE ".

• When loading or unloading, set the engine rotation to low idling (low speed rotation) and operate slowly by low speed travels.

• Always move backward when loading the Machine. Moving forward may cause the machine to fall.

•

Do not operate any other lever than traveling levers

(forward/reverse traveling) on the ramp boards.

• Never change direction on the ramp. Temporarily leave the ramp before correcting the direction.

CAUTIONS WHEN LOADING OR UNLOADING (CONTINUED)

• Across the border of ramp and loading deck, the center of

gravity of the Machine rapidly moves and thus the Machine

becomes unstable. Accordingly, pass the border

particularly slowly.

• When unloading the Machine and placing the load onto an

earth fill or platform, secure sufficient width, strength and

inclination of the ground or the platform.

•

Set the Machine to a traveling posture and be slow when operating to change the direction on the trailer platform

where the footing is unstable.

• After loading the Machine, be sure to lock the cabin door. Otherwise, the door may flung open during transportation.

•

After loading the Machine, apply the wood blocks so that

the Machine does not move, and securely fix with wire ropes or other means.

Refer to the descriptions under "OPERATION 5.1

LOADING/UNLOADING".

Refer to the descriptions under "OPERATION 5.3

CAUTIONS DURING TRANSPORTATION."

4. MAINTENANCE PRECAUTIONS

4.1 PRECAUTIONS BEFORE MAINTENANCE

PUT UP A WARING SIGNBOARD DURING INSPECTION/MAINTENANCE

• When warning sign "DANGER. DO NOT OPERATE!" is put

up, the Machine is being inspected and under maintenance. Do not start the engine and refrain from

touching operating levers. Disregarding the warning sign to

operate the Machine may give rise to the danger of

involving the preparing personnel into the rotating parts or movable parts of the Machine, resulting in serious injury.

•

Put up additional warning signs around the Machine as

required. Part number of warning signboard: 585-4738300 When this warning signboard is not used, store it in a tool box. If no tool box is available, keep it in a holder for the instruction manual.

TIDY UP WORKPLACE

• Always tidy away tools, hammers and

other things that obstruct the working area; grease

and oil should be wiped off immediately after use to assure safe operations. An untidy workplace may cause safety hazards and result in injuries to personnel.

SELECTING A WORKPLACE

• For inspection and maintenance, select an area with flat and solid ground.

• Select such a place where no risk of landslide, rock fall or flooding is feared.

KEEP AWAY UNAUTHORIZED PERSONNEL

During maintenance servicing of the Machine, never allow any personnel except the required

persons.

Appoint monitoring personnel as required.

FOLLOW SUPERVISOR'S INSTRUCTION DURING TEAMWORK

Appoint a person who supervises the work and follow his/her instructions in case of Machine

repair or installing/uninstalling a work device.

Unexpected accidents due to misunderstood communication between workers may occur during teamwork.

KEEP ENGINE STANDING STILL DURING INSPECTION AND MAINTENANCE

•

Before starting inspection and maintenance servicing, be

sure to retract the crane and stop the engine.

• Turn the starter switch to ON position and move each of the

left and right operating levers back and forth to the full

stroke for 2 to 3 times so that the residual pressure in the

hydraulic circuit is relieved. Set the lock lever (1) to LOCK

position (L) to turn the starter switch OFF.

• Check to ensure that the battery relay is turned OFF and main power current is not turned ON.

After turning the starter switch OFF, wait for

approximately 1 minute and push the horn switch. If the horn is not honked, no current is ON.

• Turn the disconnect switch in the battery box OFF to shut off the power supply circuit in order to prevent the system

from unexpectedly activated during inspection and

maintenance servicing.

• Apply pawls to prevent crawler from moving.

WORK BY AT LEAST TWO PERSONS DURING MAINTENANCE WITH ENGINE RUNNING

To prevent accidents, do not attempt maintenance when the

engine is running. Always observe the following in case of maintaining with the engine running for unavoidable reason.

• One person should occupy the operating seat to be ready

for stopping at any time, and keep communications each

other.

•

When working near such rotating parts as fan, belt, and

winch drum, keep the operator's body and any object that can be readily caught away from these parts.

•

Never allow any object or tool to fall on or insert into the

rotating parts of fan, belt and winch drum. Such an object may hit the rotating part or spring back from it, and thus it is dangerous.

• Do not touch operation levers. If it is unavoidable to use the

operation levers, always give a sign to the other person and let him/her evacuate to a safe place.

• Set the lock lever (1) to the "LOCK" (L) position.

Refer to the descriptions under "MAINTE

NANCE 12.

RELIEVING INTERNAL PRESSURE OF HYDRAULIC

CIRCUIT."

• Do not touch operation levers and pedals. If

it is

unavoidable to use the operation levers and pedals, always give a sign to the other person and let him/her evacuate to

a safe place.

USE APPROPRIATE TOOLS

Use proper tools and handle them in correct manners. Using

a damaged or deformed tool and using it for any purpose

other than its intended application may giving rise to a serious bodily accident.

PRECAUTIONS FOR WORKING AT HIGH ELEVATION

Secure scaffolding by using a workbench with the stairs when working at high elevation.

CAUTIONS WHEN WORKING ON MACHINE

•

Tidy the footing to avoid falling and always observe the

following precautions during maintenance on the Machine.

• Do not spill oil or grease.

• Always tidy away tools.

• Beware of the footing when walking.

• Remove dirt, oil and grease from the sole of shoes.

• Never jump off. Use

a platform and handrail, and secure

your body in three locations (both feet and one hand, or

both hands and one foot) when climbing up or down the

Machine.

• To prevent oneself from the risk of bodily accidents caused by falling or stumbling due to slipping, never step on a hood or cover.

• When working on the engine hood, use a safety belt.

CAUTIONS WHEN WORKING UNDER THE MACHINE AND CRANE

• For lifting up the Machine, use a hoist or hydraulic jack in good condition and having enough strength to withstand

the weight of components. Note

that the hydraulic jack

should not be used for lifting any part that is damaged, bent or twisted. Further

, the wire rope to be used for hoisting

shall not include broken wires, be reduced in diameter or kinked. Do not use a hook that is bent or damaged.

•

When unavoidably going under the lifted Machine to perform inspection and maintenance servicing, securely support the Machine by using blocks and stays that are

sturdy enough to withstand the Machine weight. Failure to support the Machine securely may cau

se falling of the

Machine, resulting in a serious bodily accident.

• Do not use concrete blocks for supporting the Machine. A

concrete block may readily be broken even under a light load.

CLEAN BEFORE INSPECTION OR MAINTENANCE

• Before starting an inspection or maintenance, clean the

Machine and prevent rubbish from entering the Machine and make sure the safety will be ensured during

maintenance.

•

Attempt to inspect or maintain the Machine still dirty not

only lessens chance of locating faulty part, but may cause rubbish or mud entering your eye, or slipping and tripping that result in injury.

• Always observe the following when washing the vehicle.

• Use antis lip shoes to prevent slips and trips caused by wet foothold.

• Put on protective equipment when using a high pressure steam car washer. Avoid an accident from high pressure

water which causes skin laceration or mud or other

substance to fly to eyes.

•

Do not directly spray water onto the electrical system

(sensors and connectors (1)). Water

entering the electrical system is dangerous and will cause faulty or improper operations.

4.2 PRECAUTIONS DURING MAINTENANCE

CAUTIONS DURING WELDING REPAIR

Conduct welding operation in a location with good facility, and, only authorized personnel are

permitted to be engaged in the welding work.

Unauthorized personnel are strictly prohibited since risks such as gas generation, fire and electrical shock are present when welding.

CAUTIONS WHEN HANDLING BATTERY

Before starting inspection of the battery and handling, set the starter switch to OFF position and the disconnecting switch

inside the battery box to OFF position to shut off the power

supply circuit in order to prevent the system from

unexpectedly activat

ed during inspection and maintenance

servicing. Because the battery produces hydrogen gas, sparks around the battery can cause an explosion. Moreover, the battery solution contains diluted sulfuric acid. Wrong handling of it may cause a bodily accident, explosion

and fire, and therefore always observe the following

precautions:

• AVOIDING THE RISK OF BATTERY EXPLOSION

• If the battery fluid level decreases to the LOWER LEVEL or further below, do not use the bat

tery or recharge it.

Otherwise, an explosion may occur.

Never fail to conduct the regular inspection of battery fluid level and refill purified water (such as battery replenisher available on the market) to the UPPER

LEVEL.

• Do not smoke or use fire near the battery.

• During recharging the battery, it generates hydrogen gas that is flammable.

Before recharging it, dismount if from the Machine and

conduct the recharging in a well ventilated place. During the recharging process, remove the battery cap.

• Securely tighten the battery cap afterwards.

• AVOIDING THE RISK OF DILUTED SULFURIC ACID

• Always wear protective glasses and rubber gloves before handling the battery.

• I

f the battery fluid enters your eyes, wash immediately

with water and see a doctor as soon as possible.

• If the battery fluid contacted clothing or skin, immediately wash away by huge quantity of water.

• DISCONNECT BATTERY TERMINAL

Before starting the repair work of electric system and

performing a welding operation, first turn the starter switch

OFF, wait for about one minute, and then disconnect the

battery terminals to interrupt the flow of electric current.

• DANGER OF SPARKING

To prevent sparking, strictly observe the following

precautions:

• Never allow such a metallic object as a tool to come in contact with battery terminals. Do not leave tools or other object around the battery.

• When removing the battery, be sure to discon

nect the

grounding (-) end terminal first. Conversely for mounting it again, first connect the positive (+) end terminal and fix the grounding end (-) terminal finally.

• Fix the battery terminal securely.

• Fix the battery body to the specified position securely.

BEWARE OF CHIPS WHEN WORKING WITH HAMMER

Working with a hammer may cause a serious bodily accident

because of springing off of a pin or littering of metallic chips. Strictly observe the following.

• Hitting a pin or the like may give rise to shattering of broken chips to hurt people nearby. Before

starting such a work,

make it sure that no one is staying around you.

•

Knocking a pin off with a strong force may cause the pin

flying out to hurt a person nearby. Do not allow anyone to stay around.

• When knocking such a hard metallic part as pin or bearing,

there is a risk of causing a serious bodily accident by

flaying objects. Be sure to wear protective equipment such

as goggles, gloves and helmet.

BE CAUTIOUS OF HEATED COOLANT

When checking or discharging the coolant, ensure that the

radiator cap has been cooled down so that it can be touched by bare hand in order to prevent a burn injury because of the spewing hot water or steam. When removing the

cap, first loosen it slowly to relieve

radiator internal pressure, and then take it off.

BEWARE OF OIL AT ELEVATED TEMPERATURES

When checking or discharging oil, ensure that the radiator cap and plug have been cooled down so that they can be

touched

by bare hand in order to prevent a burn injury

because of the spewing hot oil or coming in contact with parts heated at high temperatures. When removing cap and plug, first loosen it slowly to relieve radiator internal pressure, and then take it off.

BEWARE OF OIL UNDER HIGH INTERNAL PRESSURE

The hydraulic system is constantly subjected to an internal

pressure. Thus

, when checking or replacing the piping and

hoses, failure to ensuring that the internal pressure of the

circuit has been relieved gives

rise to a serious bodily

accident. Strictly observe the following.

• Never replace piping or hoses while the hydraulic circuit is subjected to an internal pressure. Be

sure to relieve the

pressure of the hydraulic circuit.

Refer to the descriptions under

"MAINTENANCE 12.

RELIEVING INTERNAL PRESSURE OF HYDRAULIC

CIRCUIT."

• If an oil leakage is taking place, the piping, hoses and their periphery are wet. Check to ensure that the piping is free from fissures and the hoses have no cracking or swelling.

Be sure to wear protective equipment such as goggles and gloves during the inspection work.

•

High pressure oil leaking through a small hole may

puncture the skin or destroy eyesight upon direct contact. If this happens, wash away with flowing clean water and see

the doctor as soon as possible.

BEWARE OF FUEL UNDER HIGH INTERNAL PRESSURE

In the engine fuel piping, an internal pressure is generated during engine operation. Before

starting the inspection and maintenance servicing of fuel piping, wait until its internal pressure

is relieved. After stopping the engine, wait for 30 seconds or more before starting the work.

HANDLING HIGH PRESSURE HOSE AND PIPING

If fuel leaks from a hose or piping, there occurs a risk of fire

and malfunction leading to a serious bodily accident. When leakage of oil or fuel is detected at a loosened joint or mounted spot of hoses or piping, immediately stop the work and re-tighten them with a specified tightening torque.

Also, when recognizing a damage or deformation of hoses

and piping, consult with us or our sales service agency. If any of the following conditions is found, replace the faulty parts:

• Damage of a hose or deformation of sleeve

• Scratch or truncation of the covering layer, or exposure of wire reinforcement layer

• Covering layer is partially swollen

• Indication of twist or collapse on a movable part of hose

• Foreign object buried in coating

BEWARE OF HIGH VOLTAGE

During or at immediately after stopping an engine operation,

the inside of engine controller and around the engine fuel

injector are under a high voltage, and thus an electric shock may occur.

Never touch the inside of engine controller and engine fuel

injectors. If there is a need for touching these parts, consult with us or our sales service agency.

BEWARE OF NOISE

Use ear protection or ear plugs during long-term noise exposure, such as engine maintenance servicing. Large noise in the surroundings may cause hearing difficulty or deafness.

WHEN ADJUSTING CRAWLER TENSION, BEWARE OF HIGH PRESSURE GREASE

• The grease inside the crawler adjusting unit is under high pressure.

Conducting the adjustment in an unauthorized procedure may cause the grease discharging plug (1) to jump out,

resulting in a serious bodily accident.

• When loosening the grease discharging plug (1) to loosen the tension of crawler, do not rotate it more

than 1 turn.

Also, loosen the grease discharging plug (1) slowly.

• Do not allow your face, limbs and body to come closer to the grease discharging plug (1).

NEVER DISASSEMBLE THE RECOIL SPRING

Under no circumstances, refrain from disassembling the recoil spring assembly. In the recoil spring assembly that is intended for buffering the idler, a strong spring is installed.

An inadvertent disassembling it causes the spring to jump out, inviting a serious bodily

accident. Contact us or our sales service agency if its disassembling is required.

CAUTIONS WHEN HANDLING ACCUMULATOR / GAS SPRING

• This machine is equipped with an accumulator. After stopping the engine, be sure to set the lock lever to LOCK position (L).

• Since the accumulator and gas spring is encapsulated with high pressure nitrogen gas, an erroneous handling of them may cause an

explosion and subsequent serious bodily

accident. Strictly observe the following.

• Never disassemble them.

• Do not allow fire

to come closer to them or throw them

into fire.

• Do not attempt boring, boring or gas cutting.

• Do not knock them, tumbling them or give impact to them.

• When disposing of them, removal of filled gas is required. Contact us or our sales service agent.

BE CAUTIOUS OF COMPRESSED AIR

When using the compressed air for cleaning, there is a risk of serious bodily accident because

of scattering waste objects.

Be sure to wear goggles, dust mask and gloves.

MAINTENANCE AND INSPECTION OF AIR-CONDITIONER

• If the refrigerant of air-conditioner get into the eyes, loss of sight may occur and if it comes

into contact with skin, it gives rise to a frostbite. Never loosen parts of the cooling circuit.

• When conducting the maintenance servicing of the air-conditioner, follow the Fluorocarbon Refrigerants Emission Regulating Act.

•

Users (possessors) of the Machine are obligated to conduct periodic inspections as

stipulated by the Fluorocarbon Refrigerants Emission Regulating Act. Inspect once in three months. Even when the air-

conditioner is not used during off season, the inspection is

required.

Check item

• Abnormal vibration and abnormal operation noise of the compressor

• Oil oozing out on and around the compressor

• Scratches, corrosion, rust and other blemishes on the compressor

• Frosting of air-conditioner heat-exchanger in the cabin.

CAUTIONS WHEN TREATING WASTE

In respect of the environment protection, pay sufficient attention to

the treatment of waste matters.

• Be sure to use drums and tanks to hold the discharged waste

liquid. Never allow waste liquid to flow on the ground, into river, drainage, sea or lake.

•

Observe the applicable legal regulations and rules when

disposing of this Machine as well as harmful substances such as oil, fuel, solvent, filter or battery.

• When disposing of an air-conditioner, the recovering work must

be consigned to a Class 1 fluorocarbon refrigerants filling and

recovering contractor registered by the competent authorities.

SELECTING WINDOW WASHER SOLUTIONS

Use the window washer based on ethyl alcohol. Do not use a washer solution based on methyl alcohol because it may hurt the eyes.

PERIODIC REPLACEMENT OF CRITICAL PARTS

• To assure the prolonged and safe use of the Machine, be sure to conduct the periodic replacement of parts that are particularly related to safety such parts as hoses and seat

belts. Materials of these parts tend to change their properties with elapse of service time and will degrade, abrade and show fatigue with repeated services, and thus may cause a serious bodily accident. Also

, it should be noted that their service life can hardly determined by

inspecting their appearance.

Refer to the descriptions under "MAINTENANCE 4.

PERIODIC REPLACEMENT OF

CRITICAL PARTS ".

• If any abnormality is observed in a critical part by appearance, replace it even if it has not

reached the time for regular replacement.

5. SAFETY LABEL LOCATIONS

Keep safety labels clean and visible at all times.

If lost, replace immediately or apply for a new one.

There are other labels than safety labels shown below and treat them in the same manner.

［SAFETY LABEL LOCATIONS IN THE CABIN］

［SAFETY LABEL LOCATIONS OUTSIDE OF THE CABIN］

［SAFETY LABEL LOCATIONS IN THE ENGINE ROOM］

(1) Safe operation (557-3494500)

(2) Working range diagram (585-2236900)

(3) Washing caution (300-4213900)

(4) Lever operating patterns (585-3555400)

(5) Warning on switching numbers of falls (585-3555500)

(6) Operating the moment limiter (585-2237000)

(7) Warnings on operation, inspection and maintenance (584-3469700)

(9) Cautions in repairing window

breakage (585-4739300)

(8) Operation prohibiting tag (585-4738300)

(13) Cautions for high temperatures of muffler (349-4427800)

(11)

Cautions in opening/closing

the front window (585-4738400)

(10) Cautions in retracting the front

window glass (CL000160010)

(12) Cautions in slewing

(584-4588100)

(15) Diesel fuel (585-4738600)

(22) Warning on body hoisting positions (584-3437800) (2 spots)

(16) Cautions against the risk of burns

(CL000170000) (2 spots)

(18) Caution against rotating parts in

the engine room (CL000080000)

(17)

No entry within the slewing area

(CL000180013)

(19)

Cautions for plug popping out

(CL000190010)

(

20) Caution against suffering from electric

shock by battery cable (CL000200000)

(23) Cautions on the fenders

(CL000210000)

(24) Warning for winch (553-4267500)

(25) Caution against being entangled

by the hook block (553-4267400)

6) Warning (55 3-4268000)

7) Body mass indication

(585-4738900)

8) Hoisting position

(585-4714800) (2 spots)

9) Tethering position indication

(585-4714200) (4 spots)

(

30) Warnings for the accumulator

(CL000220030)

(34) Warning on boom hoisting

Accessories (103-4576900)

(

31) Caution against rotation

(557-4632500)

2) Do not step on

(584-4581700) (2 spots)

(36) Cautions on override switch

(585-4739200)

(37) Cautions against the risk of burns

in the engine room (585-4727600)

(33) Cautions on disconnect switch

(585-4714100)

8) Hoisting machine / Fixing machine (585-3558800)

9) Caution air cleaner (585-4738700)

(

40) Caution pressure wash

(CL000240110) (2 spots)

OPERATION

1. NAME OF EACH SECTION 60

2. EXPLANATION OF ALL EQUIPMENT

3. OPERATION

130

4. HANDLING OF WIRE ROPE 192

5. TRANSPORTATION 197

6. HANDLING WHEN COLD 206

7. LONG-TERM STORAGE 208

8. TROUBLESHOOTING 210

1. NAME OF EACH SECTION

1.1 MACHINE UNITS

(1) Boom

(2) Working lamp

(3) Boom Derrick Cylinder

(4) Winch

(5) Head lamp

(6) Wiper (Front window)

(7) Wiper (Roof Window)

(8) Sprocket, travel motor

(9) Track Frame

(10) Idler

(11) Crawler

(12) Hook block

(13) Overwinding detector

(14) Rotating warning lamp

(15) Rear view mirror

(16) Rear view camera

1.2 CRANE OPERATION UNITS

(1) Maintenance switch

(2) Air conditioner operation unit

(3) Car radio

(4) Lock lever

(5) Left work operation lever (Winch 2-speed

selector switch on knob part)

(6) Travel lever

(7) Accelerator pedal

(8) Machine monitor

(9) Right work operation lever (Horn switch

on knob part)

(10) Starter switch

(11) Fuel adjustment dial

(12) Lamp switch

(13) Front window wiper switch

(14) Roof window wiper switch

(15) Buzzer canceling switch

(16) Accessory power supply

(17) Room lamp switch

(18) Emergency accelerator driving switch

(With guard)

(19) Slewing parking brake emergency

canceling switch (With guard)

(20) Emergency stop switch

(21) Levelling instrument

(22) Override switch

1.2.1 MACHINE MONITOR COMPONENTS

(1) Rear view camera selector switch

(2) User mode switch

(3) Hook storage switch

(4) Travel mode selector switch

(5) Travel 1st speed/2nd speed selector

switch

(6) Working range regulation setting and

canceling switch

(7) Working range regulation setting

check/all canceling switch

(8) Fuel gauge

(9) Warning display

(10) Working mode display

(11) Clock display

(12) Hour meter display

(13) Moment limiter status display

(14) Moment limiter load factor display

2. EXPLANATION OF ALL EQUIPMENT

The following is an explanation of equipment necessary for machine operation and work operation.

It is most important that you to correctly understand the operation method of this equipment and the

display content in order to perform correct, safe and comfortable work.

2. 1 MACHINE MONITOR

[1] STARTING SCREEN

•

When the starter switch is turned "ON", the starting screen is displayed.

• After the starting screen is displayed, the standby gauge is displayed and the screen is switched

to the top screen.

NOTES

When the engine is started, the battery

voltage can suddenly decrease depending on the

temperature and battery condition.

In such a case, the machine monitor display can temporarily disappear, but this is normal.

[2] TOP SCREEN

(1) Rear view camera selector switch

(2) User mode switch

(3) Hook storage switch

(4) Travel mode selector switch

(5) Travel 1st speed/2nd speed selector

switch

(6) Fuel gauge

(7) Clock display

(8) Hour meter display

(9) Working mode display

(10) Auto deceleration display

(11) Winch 1st speed/2nd speed display

(12) Travel 1st speed/2nd speed display

See "OPERATION 2.4.4 MOMENT LIMITER FUNCTIONS" for the name of the moment limiter parts.

2.1.1 MONITOR BASIC ACTION AND DISPLAY

[1] REAR VIEW CAMERA SELECTOR SWITCH

When the rear view camera selector switch (1) is pressed

on the top screen, the camera image is displayed on the

monitor.

When the home switch (HO) is pressed, the screen returns to

the top screen.

NOTES

If it is difficult to see the camera image, adjust the camera

angle.

[2] USER MODE SWITCH

When the user mode switch (2) is pressed on the top screen, the user mode is displayed.

(2-1) Auto deceleration ON/OFF change

(2-2) Working mode change

(2-3) Hook fall number change

(2-4) Rear-view camera auto ON/OFF

selector switch

(2-5) Monitor brightness adjustment

(2-6) Time setting screen

(2-7) Language setting

(2-8) Error history display

(2-9) Consumables display

(2-10) Switch operation sound ON/OFF change

(2-11) Home switch

(2-12) Display page change

(2-13) Software version check

[2-1] AUTO DECELERATION ON/OFF CHANGE

When the switch (2-1) is pressed, auto deceleration

ON/OFF can be changed.

• OFF: Maintains constant engine speed even if you do not

operate the controls for the preset duration.

• ON: Reduces engine speed if you do not operate the

controls for the preset duration.

When ON is selected, the auto deceleration display (10)

icon is displayed on the top screen.

[2-2] WORKING MODE CHANGE

When the switch (2-2) is pressed, the working mode can

be changed.

• S: Standard mode

• E1: Eco mode 1 (fuel economy-focused mode)

• E2: Eco mode 2 (low revolution mode)

When the working mode is changed, the working mode

display (9) on the top screen is changed.

[2-3] HOOK FALL NUMBER CHANGE

When the switch (2-3) is pressed and held, the hook fall

number can be changed.

• Four falls

• Two falls

• One fall

When the fall number is changed, the number on the hook

part of the moment limiter part changes and rated total load

changes.

Be sure to match the displayed number with the actual

hook fall number.

[2-4] REAR VIEW CAMERA AUTO ON/OFF

SELECTOR SWITCH

When the switch (2-4) is pressed, the rear view camera

display mode can be switched between manual and

automatic.

• Manual: Select the rear view camera display using the

manual switch operation. The rear view camera display

is not automatically selected, even during a crawling or

slewing operation.

• Auto: Automatically selects the rear-view camera display

during a crawling or slewing operation.

[2-5] MONITOR BRIGHTNESS ADJUSTMENT

When the switch (2-5) is pressed, the monitor brightness

can be adjusted.

Make adjustments with ◄ or ► of the adjustment switch

(2-5B).

The screen returns to the previous user mode screen with

the home switch (2-5A).

[2-6] TIME SETTING SCREEN

When the switch (2-6) is pressed, time setting, 24/12 hour

display and summer time ON/OFF can be changed.

• Time setting

• 24/12 hour display change

• Summer time ON/OFF

[2-6-1] TIME SETTING

Select the date and time desired to be changed with ◄ or

► of the adjustment switch (2-6A) and press the check

mark (2-6B). (The part whose background is white is selected.）

When the word color turns red, editing becomes possible.

Make adjustments with ◄ or ► of the adjustment switch

(2-6A) in this condition.

When the check mark (2-6B) is finally pressed, editing is

completed.

[2-6-2] 24/12 HOUR DISPLAY CHANGE

When the switch (2-6C) is pressed, time display can be

changed to either 24 hour display or 12 hour display.

[2-6-3] SUMMER TIME ON/OFF

When the switch (2-6D) is pressed, ON or OFF of summer

time can be selected.

• ON: Time display is moved up by one hour.

• OFF: Originally set time is displayed.

[2-7] LANGUAGE SETTING

When the switch (2-7) is pressed, the language can be

changed if there are alternatives of the display language.

[2-8] ERROR HISTORY DISPLAY

When the switch (2-8) is pressed, the error history can be

viewed.

If a fault occurs now, it is displayed in red characters.

See "OPERATION 2.1.2 ‘’WARNING DISPLAY’’ for details.

[2-9] CONSUMABLES DISPLAY

When the switch (2-9) is pressed, the list of consumables

can be viewed. After replacing a consumable item, use ▲ or ▼ of the

adjustment switch (2-9A) to select the replaced item. You

can also use the page selector switch (2-9D) to select the

required page.

Once you’ve selected a consumable item, hold down the

replacement switch (2-9B) and update the replacement

time. Once updated, the number of replacements is

incremented by 1, while the remaining time is reset.

NOTES

The message "Did you replace winch reduction gear?"

will appear when you replace the winch reduction gear

case oil. Select "Yes" or "No", as appropriate.

If the consumables icon display selector (2-9C) is set to

"Always" or "At start", the remaining time of 30 hours or 3

days will appear as yellow text with a white-on-dark icon

on the top screen, while the remaining time of 0 hours or 0

days will appear as red text with a red icon on the top

screen.

Replace these items promptly. Ignoring scheduled

replacements may generate hazards or adversely affect

the machinery.

NOTES

We recommend setting the consumables icon display

selector (2-9C) to "Always".

The consumables icon display changes as follows when

the replacement time approaches or when the

replacement time is exceeded based on the setting

made.

Always: The consumables icon is always displayed on

the top screen.

At start: The icon is disp

layed for just 30 seconds on

the top screen after startup.

No: The consumables icon is not displayed.

[2-10] SWITCH OPERATION SOUND ON/OFF CHANGE

When the switch (2-10) is pressed, switch operation sound

ON/OFF can be changed.

• OFF: The operation sound is disabled.

• ON: The operation sound is enabled.

[2-11] HOME SWITCH

• Short-time pressing ：Returns one page.

• Long-time pressing ：Returns to the top screen.

[2-12] DISPLAY PAGE CHANGE

Each time the switch is pressed, the page changes: "1/2

page to 2/2 page to 1/2 page".

[2-13] SOFTWARE VERSION CHECK

The controller software version can be checked.

[3] HOOK STORAGE SWITCH

•

The hook storage switch cancels the automatic stop function of the overwinding

prevention device.

When storing the hook block, carefully operate the right work equipment operation lever

and pay due attention not to allow the hook block to crash against the boom.

• Use the hook storage switch only when performing simple storage of the hook block in

the boom tip.

While continuing to press the switch (3), operate the right

work equipment operation lever toward the "Hoisting" side.

The hook block is hoisted and is stored in the storage section

of the boom tip.

When the switch is released, the automatic stop function of

the overwinding prevention device turns into an operating

state.

NOTES

･

While this switch is pressed, the red lamp of the rotating

warning lamp illuminates.

･

When the winch is hoisted while

this switch is pressed,

the hoisting speed becomes slow, which is not a fault.

[4] TRAVEL MODE SELECTOR SWITCH

Travel with a lifted load is in principle not advised because it is very unstable and involves

danger.

If travel with a lifted load is unavoidably performed, see "OPERATION 3.24 OPERATION

DURING TRAVELLING HOIST " and strictly observe the rated total load, operation method

and travel posture with a lifted load at the time of travel with a lifted load.

Unless these precautions in travell

ing with a lifted load are observed, serious physical

injury may be caused.

When the switch (4) is pressed, the mode can be changed

from the stationary mode to the travel mode enabling travel

with a lifted load.

The display of the machine body illustration on the top

screen changes.

[5] TRAVEL 1ST SPEED/2ND SPEED SELECTOR SWITCH

•

Be sure to perform loading to and unloading from a trailer at low speed ("set to 1st speed").

While travelling, never perform changing operation of the travel speed selector switch.

• If changing operation of high/low speed (2nd speed - 1st speed) i

s performed during

travelling, the travel direction may deviate even while travelling in a straight line. Perform

changing operation of travel speed after stopping the machine.

• The rear of the machine body is a blind spot. Be sure to check the rear of the machine

body with a rear view camera before performing backward travel operation.

The switch (5) changes the travel speed into two stages. Each time the switch is pressed, the speed changes from "1st speed" to "2nd speed" to "1st speed" repeatedly.

• Display of monitor "1": Low speed travel (1st speed)

• Display of monitor "2": High speed travel (2nd speed)

The display (12) on the top screen changes.

NOTES

･

When the actual load value of the moment lim iter is 0.5ton or more, the mach ine does n ot t ravel

at high speed even if "2" is displayed on the monitor.

[6] FUEL GAUGE

The meter (6) indicates the fuel quantity in the fuel tank. When the indicator comes near the red color of the meter, check the fuel quantity in the fuel tank and replenish fuel.

NOTES

Although the indicator may not point to the correct position for a while after the starter switch is turned "ON", this is

normal.

[7] CLO CK DISPL AY

Displays the time.

[8] HOUR METER DISPLAY

Displays the hour meter.

[9] WORKING MODE DISPL AY

Displays the working mode currently set.

[10] AUTO DECELERATION DISPLAY

This is displayed when Auto deceleration is ON.

[11] WINCH 1ST SPEED/2ND SPEED DISPL AY

Each time the winch 1st speed/2nd speed selector switch is pressed, the speed changes "from 1 to 2 to 1".

[12] TRAVEL 1ST SPEED/2ND SPEED DISPLAY

Each time the travel 1st speed/2nd speed selector switch is pressed, the speed changes "from 1 to 2 to 1".

2.1.2 WARNING DISPLAY

[1] WARNING DISPLAY AND ERROR CODE DISPLAY

If the warning monitor illuminates in red, immediately stop the work and stop the engine or

set it to low idle. Then, immediately inspect the applicable part and take the correct action.

Emergency stop items are those to which you have to pay attention during engine running and when

an abnormality occurs, items for which immediate action must be taken are displayed. When an

abnormality occurs, the monitor of the abnormal part illuminates in red and the buzzer sounds.

(1) Abnormality display (abnormality detected)

(2) Engine oil pressure abnormality

(3) Engine coolant temperature abnormality

(4) Hydraulic oil temperature abnormality

(5) Fuel clogging abnormality

(6) Charged capacity display

(7) Consumables display

(8) Error code display

If a warning and/or error code is displayed, check the warning content and error content.

If an error code is displayed, please contact us or our sales and service agency.

[2] LIST OF ERROR CODES

If the following error codes are displayed, see "Operation 8. Action in the case of abnormality”. If you think

there is another reason, ask us or our sales service agency for repair.

2.2 SWITCHES

(1) Starter switch

(2) Fuel adjustment dial

(3) Lamp switch

(4) Front window wiper switch

(5) Roof window wiper switch

(6) Buzzer canceling switch

(7) Accessory power supply

(8) Horn switch

(9) Room lamp switch

(10) Emergency accelerator driving switch (with

guard)

(11) Slewing parking brake emergency canceling

switch (with guard)

(12) Emergency stop switch

(13) Maintenance switch

(14) Levelling instrument

(15) Winch 2 speed selector switch

(16) Disconnect switch

(17) Override switch

[1] STARTER SWITCH

Always turn the starter switch to the “OFF” position at the end of work.

Use this switch to start and stop the engine.

• OFF

The key can be inserted and removed, the electrical

system current is turned off except the room lamp and the

engine stops.

• ON

Electricity flows through the charging circuit and lamp

circuit. Keep the switch at this position while the engine

is running.

• START

A position where the engine starts. Keep the key at this

position during cranking and when the engine has started,

immediately release your hand from the key. The key

automatically returns to the “ON” position.

The engine of this machine has the automatic remaining

heat function. If the engine does not crank when it is cold,

AUTO GLOW lamp illuminates. When the lamp

illuminates, wait until the lamp goes out and then, turn the

switch to the START position to start the engine.

NOTES

The engine does not start unless the lock lever is at the lock

(L) position.

Check that the lock lever is at the lock (L)

position before operating the starter switch.

[2] FUEL ADJUSTMENT DIAL

Adjusts the engine speed and output.

• (a) Low idling (MIN): Position where the dial is fully

turned counterclockwise (left

direction)

• (b) Full revolution (MAX): Position where the dial is

turned clockwise (right

direction)

[3] LAMP SWITCH

Use this switch to turn on the working lamp and headlamps.

• (a) ON position: The lamp turns on.

• (b) OFF position: The lamp turns off.

[4] FRONT WINDOW WIPER SWITCH

Use this switch to activate the wiper of the cab front window

and window washer fluid.

• (a) Wiper position: The wiper operates.

• (b) Washer position:

When the switch continues to be pressed, washer

fluid is emitted and the wiper operates.

When you release your hand from the switch, the

switch returns, washer fluid stops and the wiper also

stops.

• (c) Stop position: The wiper stops.

[5] ROOF WINDOW WIPER SWITCH

Use this switch to activate the wiper of the cab roof. window

and window washer fluid.

• (a) Wiper position: The wiper operates.

• (b) Washer position:

When the switch continues to be pressed, washer

fluid is emitted and the wiper operates.

When you release your hand from the switch, the

switch returns, washer fluid stops and the wiper also

stops.

• (c) Stop position: The wiper stops.

[6] BUZZER CANCELING SWITCH

For your safety, set the switch to the normal position for

work.

• (a) Cancel position:

The warning buzzer sound is stopped.

• (b) Normal position:

The warning buzzer tone sounds.

NOTES

The buzzer tone which can be cancelled is limited to the

buzzer tone

when a fault code is displayed.Other warning

sounds are not cancelled.

[7] ACCESSORY POWER SUPPLY

CAUTION

Accessory power supply is for 24V. Do not use this as power supply for equipment of 12V.

This can be used as an accessory socket.（100W (24V x

5A))

[8] HORN SWITCH

Use this switch to honk the horn.

When the switch on the knob part of the right work

equipment operation lever is pressed, the horn honks.

[9] ROOM LAMP SWITCH

CAUTION

Failure to turn off the switch causes the battery to be discharged. Be sure to turn the switch

to the "OFF" position after using the room lamp. The room lamp turns on when the starter

switch is at the "OFF" position.

Use this switch to turn on the room lamp.

• (a) "ON" position: The room lamp turns on.

• (b) "OFF“ position: The room lamp turns off.

[10] EMERGENCY ACCELERATOR DRIVING SWITCH

CAUTION

Use this switch to increase the engine speed temporarily when accelerator revolution does

not increase because of an abnormality in the electrical system.

Use this switch to perform work temporarily when an

abnormality occurs in the accelerator control system.

• (a) "Emergency" position: Abnormal case (switch raising)

+ buzzer sounding and display

on the monitor

• (b) "Normal" position: Normal case (switch lowering)

NOTES

When the switch is turned to the (a) "Emergency" position in

the normal case, the engine abnormality (P0101) error is

displayed on the monitor even if the switch is returned to the

(b) "Normal" position. However, this is not a fault.

In this case, take the following steps to delete the error

display.

1. Turn the switch to the (b) "Normal" position.

2. Start the engine and operate it at least for one minute.

3. Turn OFF the starter switch and stop the engine at least

for one minute.

4. Repeat the steps 2 and 3 again.(Twice each in total)

When the above operation is performed, the engine

abnormality (P0101) display on the monitor

disappears.

If these steps fail to clear the error, contact us or our sales

service agency.

Error displayed on the

monitor

(Not a fault)

[11] SLEWING PARKING BRAKE EMERGENCY CANCELING SWITCH

CAUTION

This enables slewing operation temporarily when the controller is abnormal. Do not use

this switch except in the abnormal case. Promptly repair the abnormal area.

Use this switch to perform slewing operation temporarily

when an abnormality occurs.

• (a) "Release" position: Abnormal case (switch raising) +

buzzer sounding and display on

the monitor

• (b) "Normal" position: Normal case (switch lowering)

[12] EMERGENCY STOP SWITCH

Use this switch to stop the engine urgently.

• ON: Press the switch. The engine stops.

"Emergency stop" is displayed on the upper right of the

monitor.

• OFF: Turn the switch clockwise (in the arrow direction on the

right illustration).

The switch returns to the original position.

NOTES

When restarting the engine after an emergency stop, be

sure to turn the EMO switch to the “OFF

” position before

starting the engine.

[13] MAINTENANCE SWITCH

This switch is not used for crane operations.

It is a maintenance switch for servicing.

[14] LEVELLING INSTRUMENT

If crane operation is performed with the machine tilted, it may cause tripping.

Find a place, whilst looking at the levelling instrument, where the machine body is in a level

state before starting crane operation.

If work is unavoidably performed on a slope, place planking or lay earth on the ground to

make the ground level.

This displays an inclination status of the machine.

The inclination and direction of the machine can be

determined from the position of the air bubbles.

Use this to check whether the machine body is in a level

condition.

[15] WINCH 2 SPEED SELECTOR SWITCH

• Perform raising and lowering operation at high speed only under a no load condition and

without hoisting a load.

Raising and lowering operation of a hoisted load at high speed may cause serious

physical injury due to the machine tipping, breakage or dropping of a load.

• If the weight of a hoisted load is "0.5t" or more, the speed does not become high even

when the winch 2 speed selector switch is operated.

If the weight of a hoisted load is "0.2

t" or less, it is possible to perform raising and

lowering operation in high, but such operation may cause serious physical injury due to

machine tipping, breakage or dropping of a load. Therefore, avoid such operation as much

as possible.

Use this switch when changing the speed at the time of

raising and lowering operation of the winch.

The lever switch can change the speed between "1st

speed" and "2nd speed".

• High speed (2nd speed): Raising and lowering speed is

increased.

• Low speed (1st speed): The speed returns to the normal

raising and lowering speed.

Check that when the lever switch is pressed, the monitor

display also changes.

NOTES

When the number of wire falls of the moment limiter is set to

"one fall", the speed does not become high even if this

switch is placed in the "High speed (2nd speed)" position.

The speed is fixed to "Low speed (1st speed)".

[16] DISCONNECT SWITCH

CAUTION

Be sure to place this switch in the "ＯＮ" position. Use this switch temporarily only in the

case of preventing unexpected startup of electrical equipment during inspection and

maintenance.

Use this switch to turn off the battery power supply to prevent

unexpected startup of electrical equipment during inspection

and maintenance.

• OFF: The battery power supply is turned off and no

electricity flows through all the electrical systems.

• ON: The battery power supply is connected.

[17] OVERRIDE SWITCH

Override switch has a function to disable the moment limiter.

When this switch is turned ON, the crane does not automatically stop with the moment

limiter and is very dangerous. Any crane operation in such conditions may

result in

dropping of hoisted load, breakage of crane boom, and/or machine tipping, and may cause

a serious accident resulting in death or serious injury.

Use this switch only when the moment limiter, which detects the crane conditions, fails or

a load test of the crane is conducted. Key for the switch must be detached during normal

operations.

In particular, never perform the following uses.

• Never wind up the hook when hoisting loads.

Even if the weight of hoisted load exceeds the rated total load, the moment limiter cannot

detect it, and could result in dropping of the hoisted load, boom breakage or machine

tipping due to cutting of the winch wire rope.

•

After the moment limiter detects that the rated total load is exceeded during crane

operation and automatically stops the operation, do not perform hoisting operation, boom

lowering operation and boom extension operation while the operation stop function is

cancelled by turning this switch to the "ON" position. Such operation may cause boom

breakage and machine tipping.

• Use the hook storage switch when storing the hook. If this switch is turned ON to perform

hook hoisting operation, automatic stop is not made in an over winding condition.

Use this switch only when the moment limiter fails or a load

test of the crane is conducted.

• ON: Insert the key into the switch. Turn the key clockwise

and then return it to the original position. The key

automatically returns to the "OFF" position when you

release your hand.

The operation stop function is cancelled for 10 minutes

after it is turned ON.

• OFF: The key can be removed or inserted at this position.

NOTES

You will notice the following when the operation stop

function is cancelled.

• The red lamp of the rotating warning lamp turns on.

• The LED of the switch box lights up.

• The buzzer sounds continuously.

• The icon will be displayed on the monitor.

[Overriding / Turn stater key off to reset]

The above statuses will change as follows 30 seconds

before the operation stop fuction returns from the cancelled

state.

• The LED of the switch box blinks.

• The buzzer additionally emits intermittent sound.

• Another icon will be displayed additionally on the monitor.

[Stop operation / Overriding soon stops]

However, these behaviors are subject to change depending

on the status of the Machine body.

Although the boom lowering and extending operations slow

down when the operation stop fuction is cancelled, this is

normal.

By turning the engine key OFF, the Machine can be

restarted even before 10 minutes have passed.

2.3 OPERATION LEVERS AND PEDALS

(1) Lock lever

(2) Travel lever (with auto deceleration

mechanism)

(3) Left work equipment operation lever (with auto

deceleration mechanism)

(4) Right work equipment operation lever (with

auto deceleration mechanism)

(5) Accelerator pedal

[1] LOCK LEVER

•

When standing up from the driver seat, place the lock lever securely in the lock position

(L). If the lock l

ever is in the free position (F) and contacts the operation levers and

operation pedals carelessly, serious physical injury may be caused.

• When you leave the driver seat or work is suspended, check that the lock lever is securely

in the lock position (L).

• When pulling up or pushing down the lock lever, be careful not to allow it to contact the

operation lever of work equipment.

Use this lever to lock crane operation, slewing and travel

operation.

• (L) Lock: Pull up the lever. The machine does not move even

if each operation lever is operated.

• (F) Free: Push down the lever. The machine moves if

each operation lever is operated.

NOTES

Because the machine is hydraulically locked by the lock

lever, operation levers move even

if the lever is placed in

the lock position. However, the machine does not move.

[2] TRAVEL LEVER

•

When the sprocket (A) side is in the rear, the track

frame faces forward.

When the track frame faces

rearward, the direction of travel lever

operation is

opposite to the direction of machine movement

(forward and rearward movement, right and left

movement direction).

When operating the travel lever, be sure to check if

the track frame faces forward or rearward.

Use this lever to move the machine forward/rearward, stop,

change the direction, and adjust the travelling speed.

• (a) Forward movement: Push the lever forward.

• (b) Rearward movement: Pull the lever toward you.

• (N) Neutral: Release your hand from the lever.

NOTES

When the travel lever is operated to the forward or rearward

direction

from neutral, the alarm sounds and notifies the

surrounding area that the machine will start moving.

[3] WORK EQUIPMENT OPERATION LEVER

• The operation pattern is set according to the standard operation method (ISO pattern).

If you desire to change the operation pattern, please request us or our sales service

agency.

• When the operation pattern is changed, the operation nameplate needs to be replaced

with one that matches the machine movement.

(1) Left work equipment operation lever

Use this lever to perform slewing operation of the revolving

super structure and extension and retraction operation of

the boom.

Slewing operation

• (a) Right slewing: Pull the lever in the right direction.

• (b) Left slewing: Push the lever in the left direction.

Extension and retraction operation of boom

• (c) Retraction of boom: Pull the lever rearward.

• (d) Extension of boom: Push the lever forward.

(N) Neutral: Release your hand from the lever.

The revolving upper structure and boom length retain their positions as they stop.

(2) Right work equipment operation lever

Use this lever to perform winch operation and boom

derricking operation.

Winch operation

• (e) Hoisting: Pull the lever rearward.

• (f) Lowering: Push the lever forward.

Boom derricking operation

• (g) Lowering of boom: Push the lever in the right direction.

• (h) Raising of boom: Pull the lever in the left direction.

(N) Neutral: Release your hand from the lever.

The hook block and boom angle retain their positions as they stop.

[4] ACCELERATOR PEDAL

Use the accelerator pedal only when the machine stops and you operate the crane.

Never use this pedal during travel operation. An operation mistake may be made, resulting

in serious physical injury.

Use the fuel adjustment dial to adjust engine speed during travel operation.

Use this lever to adjust the engine speed or output during

crane operation.

• (a) Low idling: Release your foot from the pedal.

• (b) Full revolution: Depress the pedal fully.

NOTES

As a priority is given to the engine speed of the fuel

adjustment dial, the engine speed does not fall below the

set speed of the fuel adjustment dial even if you release your

fool from the accelerator pedal.

When performing work using the accelerator pedal, operate

the fuel adjustment dial in advance to set the necessary

minimum engine speed.

2.4 MOMENT LIMITER (OVERLOAD PREVENTIVE DEVICE)

2.4.1 CONFIGURATION OF MOMENT LIMITER

(1) Boom length meter (left side of boom)

(2) Boom angle meter (left side of boom)

(3) Pressure sensor (derricking cylinder section) (2 pieces)

(4) Overwinding detector (side of boom tip)

(5) Rotating warning lamp

(A) Rotating red lamp (warning lamp when load factor is 100% or more)

(B) Rotating yellow lamp (prediction lamp when load factor is 90 - less than 100%)

(6) Machine monitor (moment limiter display section) (inside cab)

(7) Override switch

2.4.2 FUNCTIONS OF MOMENT LIMITER

• Do not remove, disassemble, or repair the detector. In

addition, do not reposition the

detector from the original location to another.

• When an object hits the detector or damage is found on it, be sure to check the operating

condition of the automatic stop.

If any abnormality is found in the operation condition of automatic stop, be sure to repair

it.

• The slewing operation does not stop automatically when the crane is overloaded. When

overloaded, do not perform slewing operation.

• When the crane is ap

proximating the stop position during boom operation, be sure to

lower the boom operation speed.

If the boom is at a high operation speed, it may exceed the predetermined stop position

and the machine may tip over causing severe personal injury, which could lead to death

or serious injury.

The moment limiter is a device that is installed to prevent dropping of the suspended load or

breakage or tipping of the machine, which may occur due to overload.

Before starting crane operations, be sure to inspect operation of the moment limiter to make sure

that there is no abnormality.

[1] MECHANISM OF MOMENT LIMITER

The moment limiter knows the current posture by the boom

angle meter and boom length meter and calculates "Rated

total load" in the current condition by further knowing the

number of wire falls (input by a driver).

When the load is hoisted actually at this time, the moment

limiter calculates the "actual load" (hoisted load) according to

the pressure value from the pressure sensor of the derricking

cylinder section. The moment limiter makes comparison and

calculation on "Rated total load" and "Actual load" (hoisted

load) that were calculated in the current figure. Then, it issues

an alarm if the result is as follows: "Actual load / Rated total

load = 90 to 100%".

If the calculation result is "Actual load / Rated total load =

100% or more", the moment limiter issues an alarm and at the

same time automatically stops the boom operation.

The overload stop accuracy satisfies the stop accuracy of the

following formula by slowly lowering the boom.

Stop

accuracy =

A - B

×100＜+10%

Where, A: Total weight of suspended load + hook + hoisting attachment (Slings etc)

B: Rated total load of working radius (actually measured radius) where the boom stopped

due to overload

[2] MOMENT LIMITER ABNORMALITY OCCURRENCE MESSAGE DISPLAY

The moment limiter displays a fault code on the top screen of the monitor to notify the driver if an

abnormality occurs in the boom angle meter, boom length meter or pressure sensor, or if wiring is

cut or connectors come off.

If a moment limiter related fault code is displayed on the monitor, immediately stop the use of the

crane.

For the fault code and cause and action for the abnormality, see "OPERATION 2.1.2 [2] LIST OF

ERROR CODES".

2.4.3 MOMENT LIMITER OPERATION AND CANCELING (RECOVERY)

The moment limiter is a device that is provided for measures available for an emergency case. In

actuality, any operations relying on the device will incur danger.

Operate the crane carefully so that it does not stop automatically.

[1] PROHIBITED OPERATIONS AFTER AUTOMATIC STOP

The following crane operation is prohibited after the crane stops automatically due to overload. Disobeying this rule may cause critical danger due to tipping of the machine or breakage of the boom, for example.

• Boom lowering operation • Boom hoisting operation • Boom extending operation

• Hook hoisting operation

[2] RECOVERY OPERATION FROM AUTOMATIC STOP

If an automatic stop occurs, you will not be able to clear the stop until you have reduced the load factor to the safety area with a load factor of less than 90% (rotating warning lamp: green). If the moment limiter displays the load factor of 90% or more, be sure to perform crane operations carefully by turning the engine speed to low. Performing crane operations at a high engine speed could cause critical danger; in this case, the hoisted load will waggle resulting in overload, which could lead to tipping of the machine or breakage of the crane, for example.

1. When load factor is "less than 90%"

When the hoisted load is less than 90% of the rated total load,

the green color of the rotating warning lamp which shows a

normal use condition turns on.

2. When load factor is "90% - less than 100%"

When the hoisted load is 90% (prediction alarm) of the rated

total load, the rotating warning lamp changes from the green

color to the yellow color and the alarm sounds to notify the

driver and persons in the surrounding area that the hoisted

load approaches the rated total load.

3. When load factor is "100% or more"

If the hoisted load exceeds 90% (prediction alarm) of the

rated total load and the hoisted load becomes 100% or more

of the rated total load by further continuing crane operations,

the rotating warning lamp changes from the yellow color to

the red color, the alarm sounds continuously and subsequent

crane action stops automatically.

• Hook hoisting action • Boom extending action

• Boom lowering action • Boom hoisting action

In addition, audible warning "Peep, overload" is issued.

4. RECOVERY OPERATION FROM AUTOMATIC STOP

To perform recovery operation from overload, perform either of the following operations so that the

crane action will be opposite to the one when the crane stopped automatically.

Note that the automatic stop cannot be cleared unless the load factor has first been lowered to the

safety area with a load factor of less than 90% (rotating warning lamp: green).

(1) Perform hook lowering operation to put down the hoisted load.

(2) Perform boom retraction operation.

Maeda CC1485S-1 Operation Manuals

Specifications and Main Features

Frequently Asked Questions

User Manual