Tadano GT-550E-2 Service Manual

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Safety

T002423E

Most accidents that occur during crane operation

and maintenance are caused by failure to observe

basic safety rules and precautions. Before operating

your machine or performing maintenance, read and

become familiar with all the safety precautions and

recommendations given in this section. Remember

that failure to observe even a single precaution

could involve you and the people around the ma-

chine in a serious accident.

Foreseeing potential dangers is vital for preventing

accidents. All personnel working with the machine,

including the supervisor, crane operator and oiler,

should be sensitive to potentially dangerous situa-

tions and take the necessary measures to prevent

accidents.

Safety precautions and recommendations are

outlined in this section and are also included in the

operation and maintenance instructions given in

subsequent sections. Warning labels are also

provided on the machine.

The cautionary instructions in this manual are

identified as “DANGER”, “WARNING”, “CAUTION”

or “NOTICE”. These terms are defined as follows:

It is virtually impossible to anticipate every situation

that might present a hazard. The safety precautions

given in this manual and on the machine labels are

not exhaustive.

It is important, therefore, to strictly follow the in-

structions in this manual and be sensitive to

potential dangers in order to prevent bodily injury

and damage to the machine.

Remember that your most important duty is to en-

sure the safety of you, your co-workers and any

other people in the area.

DANGER

DANGER indicates an imminently hazardous

situation, which, if not avoided, would result in

death or serious injury.

WARNING

WARNING indicates a potentially hazardous

situation, which, if not avoided, could result in

death or serious injury.

CAUTION

CAUTION indicates a potentially hazardous sit-

uation, which, if not avoided, may result in a minor

or moderate injury.

[NOTICE]

◆NOTICE indicates an important operational or

maintenance procedure or condition, which, if not

strictly observed, can result in damage to machine

components or deteriorated machine performance.

Safety Safety

A-1

Safety Rules

T20001

Operationand 
Maintenance

Manual

取り扱い説明書 

T019605E

WARNING

Use of improper or unauthorized method dur-

ing operation or maintenance of this machine can

be dangerous and could lead to serious injury or

death. Read this manual thoroughly and be famil-

iar with the proper operating and maintenance

procedures before using the machine. Do not op-

erate the machine or perform maintenance on it

until you understand the instructions in this man-

ual.

CAUTION

“Safety Rules” section describes the general

instructions about operation with a hydraulic

truck crane. For more detailed instructions about

your machine, see corresponding pages (white

pages) of this manual.

The figures in this manual are for reference show-

ing the important points. They may be different

from an actual machine.

Before Operation

Qualifications of the Operator

The operator must be fully trained and qualified.

The operator must be fully familiar with on-site safe-

ty rules, and national and local crane operation

regulations.

Study the Operation and Maintenance

Manual

Improper operation, inspection or maintenance can

damage the machine or cause injury or death.

Study the manual carefully. Become familiar with the

proper procedures for operation, inspection and

maintenance.

Keep the Operation and Maintenance Manual in the

crane operator’s cab so that it is always readily ac-

cessible.

Before Operation・・・・・・・・・・・・・・・・・・・・・・・・・・A-2
Rules for Operation (Setting Outriggers) ・・・・・・・・・A-7
Rules for Operation (General) ・・・・・・・・・・・・・・・・・A-8
Rules for Operation (Weather) ・・・・・・・・・・・・・・・A-17
Rules for Operation (Power Lines, Radio Waves) ・・A-18
Rules for Operation (Special Operation) ・・・・・・・・A-20
After Operation ・・・・・・・・・・・

・・・・・・・・・・・・・・・A-20
Rules for Road Travel・・・・・・・・・・・・・・・・・・・・・・A-21
Rules for Inspection and Maintenance ・・・・・・・・・・A-22

Follow All Instructions and Warnings

The Operation and Maintenance Manual and the

warning labels on the machine contain instructions

and must be followed to ensure safe operation.

Read and understand all DANGER, WARNING and

CAUTION labels. Neglecting these instructions and

warnings can result in injury or death.

If the manual is lost or any labels (decals) become il-

legible, order replacements from the nearest

authorized TADANO distributor or dealer.

Safety Rules Safety Rules

A-2

T019605E

T20002

Always Maintain Labels

The warning labels on various parts of the machine

provide important instructions for safe operation.

Always keep the labels (decals) clean and visible.

Should labels become lost or damaged, order re-

placements from the nearest authorized TADANO

distributor or dealer.

Wear Proper Clothing

Sloppy clothing may result in sleeves or cuffs being

caught and then cause an accident.

Avoid Overwork. Never Operate under

the Influence of Alcohol or Drugs

If the operator is tired, lacking in sleep, or under the

influence of medication or alcohol, the probability of

an accident event is greatly increased since atten-

tiveness and judgment are impaired. Maintain

proper physical fitness for crane operation.

Keep All Footings and Shoes Clean

Oil, water or mud on soles of shoes, steps or decks

can cause slip off and fall mishaps or cause acci-

dental release of a control pedal. Always remove oil,

mud, water or snow before operation and keep

shoes and floor of the operator’s cab clean.

Do not leave any parts or tools on the operator’s

cab floor or passageway.

Safely Climbing onto and Descending

Wear Approved Protective Gear

To ensure safety, always wear a hard hat and safety

shoes. Also protective goggles, dust mask,

earplugs, work gloves, safety belt, etc. must be

worn as the situation requires. Check that all protec-

tive gear is in good condition before wearing it.

T00041

from the Machine

Do not jump onto or off the machine.

Do not climb onto or descend from the machine with

objects in hand.

Only climb onto or descend from the machine while

it is completely at standstill. Use the handrails and

steps, always support your hands and feet firmly

(three point support); that is, one hand-two feet or

two hands-one foot.

Never use the steering wheel or control levers as

handrails.

T03833

Safety Rules Safety Rules

A-3

T019605E

T01938E

WARNING

DO NOT OPERATE

Correctly Position the Seat

Incorrect positioning of the operator’s seat can re-

sult in mistakes or fatigue, possibly leading to an

accident.

Before operating the machine, correctly position the

seat so that the pedals and levers can be manipulat-

ed correctly.

Maintain Good Visibility

Fouled window panels, lights or rearview mirrors

can limit the operator’s visibility, impairing safe op-

eration. Always keep the window panels and light

lenses clean.

Position mirrors correctly as required by job condi-

tions.

Perform Pre-Operation Inspection

Neglecting routine inspections and maintenance

can shorten service life of the machine or even re-

sult in an accident.

Before starting operation (and before taking over a

shift), perform the pre-operation inspection on the

carrier and the upper structure to ensure that the

machine is in proper condition and free from any

problems.

Should any problem be found, report it to the re-

sponsible person, remedy it, and only then start

operation.

Do Not Operate a Machine Being

Inspected or Serviced

Operating the machine while it is undergoing in-

spection or maintenance work can cause damage or

an accident.

Post a “DO NOT OPERATE” sign on the operator’s

cab door or any control lever. Do not attempt to op-

erate the machine until the sign is removed by

maintenance personnel.

Check the Position of Controls before

Starting the Engine

If any control lever is in a position other than “neu-

tral”, the machine may initiate some mechanical or

hydraulic function as soon as the engine is turned

over. This situation is very dangerous. Start the en-

gine only when completely sure that all controls are

in the proper neutral or inactive position.

Make Sure Work Area Is Safe before

Starting the Engine

Starting the engine without performing a thorough

safety check of the work area may cause damage to

the machine or injury or death.

Make sure there are no personnel or obstacles un-

derneath or around the machine.

Before starting the engine, sound the horn to warn

any nearby personnel.

Safety Rules Safety Rules

A-4

T019605E

T00020

Start the Engine from the Operator’s

Cab Only

If the engine is started from any location other than

the crane operator’s cab, it can become impossible

to avoid a dangerous hazard if some machine action

is initiated when the engine turns over.

Start the engine only from the operator’s seat.

Inspection after Starting the Engine

Failure to perform a basic inspection after starting

the engine can result in not detecting fault or abnor-

mality with the machine.

Inspect the machine in a safe location that is free

from obstacles and people other than maintenance

personnel.

Allow the engine to warm up after it is started while

the instrument readings and checking the machine

components. Once the engine is properly warmed

up, make a safety check of the work area, and run

the machine without a load to check out condition of

the controls, machine elements and safety devices.

Night Operation

Operation in the dark makes it difficult to ensure

good footing, and to locate nearby persons or ob-

stacles, increasing the probability of an accident.

When operating at night, turn on all working lamps.

Provide ancillary portable lighting equipment to illu-

minate the work area.

Keep the Engine Clean

Dead leaves, paper dust and oil stains on and

around the engine can catch fire. Remove all such

debris before commencing operation.

Warm Up the Machine

Failure to properly warm-up the engine and various

other machine components can result in decrease in

service life of the machine or malfunctions. In win-

ter, run the engine for at least five minutes for

proper warm-up.

Then, run the engine at low speed without a load to

warm up the hydraulic oil and other machine com-

ponents.

Keep Unauthorized Personnel Away

from the Work Area

Unauthorized personnel or vehicles in the work area

can result in collision accidents, injury or death.

Before operation, make sure there are no unautho-

rized personnel or obstacles within the work area.

If the work area is situated near heavy traffic, post a

control person to prevent vehicular accidents.

Barricade the work area with appropriate means ei-

ther colored tape or rope.

DANGER

STAY CLEAR

T01937E

Safety Rules Safety Rules

A-5

T019605E

T20004

Anticipate Accident Situations

To deal with possible accidents or fires, equip the

crane with a first-aid kit and fire extinguisher. Be

aware of the locations of these safety items, and

learn how to use them properly.

An emergency contact person and emergency liai-

son plan should be carefully prepared, and all

personnel concerned must be made aware of the de-

tails.

Observe Work-site Rules

Neglecting work-site rules can result in accidents.

To ensure safe operation, observe all work-site rules

covering prohibited practices, precautions and cor-

rect procedures.

Post a Signal Person

Assign a signal person for all crane operations as

necessary and always follow instructions especially

when:

• Working near power lines.

• The load is hidden from the crane operator’s view.

• Moving the carrier along narrow roads or when

the operator’s vision is obscured.

The signal person and the operator should commu-

nicate with each other using mobile transceiver

phones.

Hold Work Site Meetings with

Concerned All Personnel

Lack of sufficient communications with concerned

personnel can result in accidents.

Before starting the job, set up a liaison meeting with

the site supervisor, rigging personnel, signal per-

son, etc., to agree on the following details:

• Mass of load, lifting height (per rated lifting capac-

ity table), locations of loading and unloading,

work area of the machine, craning procedures,

rigging methods, etc.

• Conditions of ground where crane is set as well

as whether city-water and gas pipings are buried.

• Overturning prevention by use of block plates and

outriggers.

• Mutually agreed upon and OSHA approved signal

conventions between rigging personnel and sig-

nal person.

• Designation of off-limit areas, provision of barri-

cade.

• Work stations of all relevant workers.

• Emergency liaison plan and emergency contact

person, as well as the safety/health organization.

Safety Rules Safety Rules

A-6

T019605E

T20617

Always Study Work-site Conditions

Carefully

Pay due attention to surrounding conditions.

Before starting the job, inspect the work area, check

routes to the work area, and monitor the presence of

any obstacles and locations of other machinery.

Note changes in the surroundings or site conditions

as crane operations are carried out.

Multi-Crane Operation

In lift situations involving the coordination of two or

more cranes, establish an agreed system for com-

munications and assign a signal person. The crane

operators must proceed cautiously, strictly observ-

ing all instructions of the signal person.

Rules for Operation

(Setting Outriggers)

Set the Crane on Firm Level Ground

The machine should not be located on soft ground,

which can lead to sinking, sliding or overturning,

nor on the edge of a pit, bank or slope.

If the ground conditions are doubtful, use blocks or

steel plates of sufficient strength and size below the

outrigger floats to disperse the load.

Set the Crane Level

If the crane is tilted, and the load is swung over the

side, the load radius will increase, and the machine

can overturn.

When setting the outriggers, level the machine care-

fully using a level.

T00008

Safety Rules Safety Rules

A-7

T019605E

T01939E

Fully extended

Fully Extend the Outriggers

If the outriggers are not extended correctly, the

crane may become unstable, causing the crane to

overturn.

As a general rule, always extend the outriggers fully,

even if the crane is rated for operation with the out-

riggers at middle or minimum extension. If it is

absolutely necessary to use the outriggers at middle

or minimum extension, make sure the machine is

within the rated limits.

Rules for Operation (General)

Observe Working Conditions

Operating the crane under conditions (outrigger

beam length, boom length, load radius, etc.) other

than specified in the rated lifting capacity table can

cause overturn even when not lifting a load.

Follow all instructions in the rated lifting capacity

table.

Do not Exceed Rated Lifting Capacity

Exceeding the rated lifting capacity will overload the

machine. Damage or overturning can result from

this practice.

Check the rated lifting capacity table before operat-

ing to ensure that the lift is safe. Load lifting

capacity of the crane varies depending on boom

length and load radius. Never exceed the lifting ca-

pacity in the table.

Check the Outrigger Setting

Incorrect setting of the outriggers can decrease the

load lifting capacity of the machine and result in

overturning. To avoid crane instability, make sure:

• The machine is absolutely level.

• All outrigger floats are stable and set firmly on the

ground or blocks.

• All tires are clear of the ground.

• The outriggers are secured with lock pins (if lock

pins are available).

Mass of hook block

Rated lifting capacity

Lifting capacity

T21566E

Use Safety Devices Correctly

Improper use of safety devices including the over-

load cutout can lead to damage or overturn the

crane.

Use all safety devices according to instructions in

the manual.

Safety Rules Safety Rules

A-8

T019605E

T03802E

Boom deflects

Load radius

Do Not Rely Exclusively on Safety

Devices

A safety device is not a substitute for human skill

and judgment.

The overload cutout, for example, does not warn the

operator about conditions on the ground, effects of

wind, improperly adjusted devices, load being

pulled sideways, or other possibly hazardous situa-

tions.

All safety devices are merely auxiliary means to help

the operator perform the task at hand. Safe crane

work requires the qualities of a good operator, such

as skill, experience, judgment, and safety aware-

ness.

Do Not Deactivate Any Safety Devices

Avoid any action that impairs normal operation of

the safety devices.

Intentionally deactivating any safety device may re-

sult in the inability to detect overloading or

overwinding during operation, and lead to a serious

accident.

Ensure that all safety devices are functioning cor-

rectly before starting any operation.

Rig the Load Securely

Improper rigging procedure can result in the lifted

load being dropped. Rig the load securely, paying

special attention to the following points:

• Know the mass, shape and center of gravity of the

load, and use suitable load handling devices and

rigging hardware.

• The load handling devices including wire ropes,

chains and rigging hardware must have enough

strength and be free from damage or excessive

wear.

• Rig the load so that it is suspended at a point

above its center of gravity. Otherwise, the load

can overturn or come loose of the handling device

when it is raised. Also, wire ropes and chains

must not be crossed or twisted around each oth-

er.

• Do not rig the load with a single wire rope. Such

rigging practice is very dangerous as the load can

rotate, and untwist the wire rope, reducing its

strength.

• When rigging a load with sharp corners, fit protec-

tive softeners at the load corners to protect the

wire ropes and the load itself against damage.

Before Lifting a Load

Make sure of the following before attempting to pick

up a load:

• The mass does not exceed the rated lifting capaci-

ty.

• The number of rope parts conforms to the stan-

dard in the rated lifting capacity table.

• A proper load handling device is used and the

load is securely rigged.

• The hook block is located directly above the cen-

ter of gravity of the load.

• The wire ropes runs are plumb so that the load

can be lifted vertically.

• The safety latch on the hook is working properly.

• The wire rope has no entanglement or disorderly

winding on the drum.

Consider Boom Deflection before Lifting

the Load

When a load is lifted, the boom will deflect down-

ward, increasing the load radius. Swaying of the

load also poses a hazard to the people around the

crane, and may lead to overloading.

If the load starts to sway when lifted clear of the

ground, lower the load back on the ground.

When lifting a heavy load or using the extended

boom, anticipate the possible increase in the boom

load radius.

Safety Rules Safety Rules

A-9

T019605E

T00011

Lift Single Loads Only

Do not lift two or more loads simultaneously even if

their total mass is within the specified rated lifting

capacity; otherwise, the loads may lose balance. It

is usually not possible to maintain complete atten-

tion to multiple loads.

Operate According to Signals

If signals are not obeyed or if signals are improperly

made, accidents can occur.

Follow instructions of the signal person. An emer-

gency shut down signal must be acknowledged

whoever gives it.

Operate the Crane from the Operator’s

Conduct a Safety Check within the Load
Radius of the Crane before Starting
Operation

Any person located close to the crane may become

caught between machine components or between

the counterweight and a fixed obstacle. Before

starting any swing motion, make sure that there is

no one nearby. Sound the horn to warn all immedi-

ate personnel of crane startup.

During crane operations, fence off or barricade the

work area to prevent unauthorized persons from ap-

proaching the machine.

Be Extremely Careful When Raising the
Load Clear of the Ground

Stop lifting the load once the rigging is fully taut,

check that the load is suspended at a point just

above its center of gravity, and that the load is not

stuck to the ground or interfering with a nearby

body or structure.

Lift the load vertically. When the load clears the

ground, stop lifting and suppress any swaying; then

check that the rigging is secure, the load is in a sta-

ble position, and the crane is not overloaded.

Then, recommence the lift again.

Cab Only

Controlling the machine from outside the cab,

through the cab window, is strictly forbidden and

extremely dangerous.

T00019

Do Not Lift the Load Clear of the Ground
by Raising or Extending the Boom

Raise a load clear of the ground by vertical hoisting

only.

Raising or extending the boom to lift a load clear of

the ground will cause the load to sway, posing a

hazard.

If the boom is elevated to raise a load clear of the

ground, the crane will not be automatically stopped

even in case of an overload. An overloaded machine

can overturn or be damaged.

Safety Rules Safety Rules

A-10

T019605E

T01941

Move a Lifted Load Carefully

When the crane state comes near the full rating, the

AML gives an intermittent alarm. Operate the crane

more carefully and slow the load-moving speed.

Take best care for over-loading in boom-lowering

operation which enlarges the load radius.

Do Not Lift an Unknown Load

Attempting to uproot a garden tree or raise an object

buried or driven into the ground can severely over-

load various components of the machine, possibly

causing the machine to overturn or be damaged. Do

not attempt to pull up poles or piles driven into the

ground, trees or any objects buried or frozen in mud

or sand.

Only lift objects free from all restraining forces.

Operate the Crane Carefully

Operating the controls too abruptly can result in an

accident: a swaying load can hit an object or dam-

age the machine.

Operate all control levers and pedals smoothly and

in a steady manner.

Do Not Make Inadvertent Swing

When the front jack is not employed, lifting capaci-

ties in the over-front area are inferior to those in the

over-rear and over-side areas. The crane may be

overturned if inadvertently swung to the over-front

area with a load lifted in the rear or side area.

Depending on boom length, boom angle, and outrig-

ger extension, even the unloaded crane may

overturn because of inadvertent swing.

Before operation, confirm the living capacity by the

rated lifting capacity table. If there is an inferior ca-

pacity area, place signal corns or ropes for swing

restriction to avoid swing into such a perilous area.

Avoid Overloading

A load below the rated lifting capacity can still

cause overloading of the crane if swaying occurs.

Do not trigger overloading while telescoping out or

lowering the boom. These actions increase the load

radius and are destabilizing.

When Overloading Occurs

When overloading occurs, never attempt to raise or

lower the boom rapidly. This situation is very dan-

gerous as the machine can readily overturn.

Immediately set the load on the ground by carefully

unwinding the wire rope off the winch drum.

Swing the Crane Carefully

If the swing speed is too high, substantial centrifu-

gal force is applied to a load, resulting in an

increased load radius. As a result, the machine may

become overloaded and overturn.

Stopping a swing operation abruptly can cause a

load to sway posing a hazard to nearby personnel

and possibly leading to boom failure.

Swing all loads slowly. Carefully stop any swinging.

Be extremely cautious when working with an ex-

tended boom.

T00029

Safety Rules Safety Rules

A-11

T019605E

T02212

Be Careful during Complex Operations

Actions of the crane will be slower during complex

operations. When switching from a complex opera-

tion to a simple operation, action of the machine will

become faster. When executing a complex opera-

tion, do not change speed immediately.

Do not attempt any complex operation until fully fa-

miliar with the crane operation.

Avoid Contact with Obstacles

While moving a load, be absolutely sure that the

load or any part of the crane does not come into

contact with nearby structures or other objects.

When working on a site where potential obstacles

are present, post a signal person, and only move the

load while following instructions.

Be Careful When the Boom Is at
Maximum Permissible Angle

When the boom is raised to its maximum permissi-

ble angle, there exists minimum horizontal

clearance between the boom and the load. A sway-

ing load may hit the boom or jib, and cause damage.

Handle the load carefully so that it does not strike

the boom or jib.

Be Careful in Demolition Work

It is very dangerous to lift parts or components of a

structure undergoing demolition, if the mass and

center of gravity are unknown. Before starting oper-

ation, ascertain the mass and center of gravity of the

loads, and establish the lift procedure to be taken.

Operate the Crane with Correct Boom

Position

When the boom configuration is irregular for pur-

pose of inspection or maintenance, never attempt to

lift a load.

During crane operation, check that all the boom sec-

tions are telescoping in the correct sequence. The

rated lifting capacity table has been developed

based on assumption that the boom sections are

telescoped in the correct sequence.

Do Not Extend the Boom Excessively

An excessively extended boom decreases the rated

lifting capacity and also can cause overswing of the

load or lower working efficiency.

Keep the length of the boom as short as possible

during operation.

T01944

Carefully Lift a Load in Water

When handling a load submerged in water, it is im-

portant not to lift the load out “all at once” when it

appears above the water’s surface. The load may be

impregnated with water and heavier than expected.

Allow the load to drain while raising it slowly.

A load lifted out of water, even when fully drained,

weighs more than it did when submerged because

of buoyancy effects. Lift the load carefully so as not

to cause overloading.

Safety Rules Safety Rules

A-12

T019605E

T00028

Handle Wide Loads Carefully

Be careful when lifting a wide load. The load can

swing and hit a rigging person, the crane itself or a

nearby structure.

Use tethers tied to either or both ends of the load to

control the position and/or movement of the load.

Do Not Overwind the Hook Block

When the boom is lowered or extended, the hook

block is wound up.

Usually, overwinding the hook block will cause the

overwind cutout device to trip and the winch auto-

matically stops. However, if the device is damaged

or the automatic stop function has been deactivated

for some reason, the hook block can impact the

boom head.

Always be aware of the position of the hook block. If

the hook block approaches the boom head, wind off

the wire rope to lower the hook block and avoid con-

tact.

Know of the Number of Wire Rope Parts

If the number of the part lines is greater than speci-

fied for the boom length, the hoist line may become

too short. As a result, the line can unwind off the

winch drum causing the wire rope to be damaged or

broken.

When lowering a very light load, or a bare hook

block, the rope will unwind off the winch drum at a

faster rate. The rope may then become improperly

wound.

Use a number of part lines appropriate to the boom

length.

Wire Rope Must Be Properly Wound on

the Drum

Lifting a load with the wire rope improperly wound

on the winch drum can lead to damage of the wire

rope, not only decreasing service life of the rope but

possibly breaking wires and strands which can lead

to ultimate failure.

After reeving or replacement of the wire rope, make

sure that the line is properly seated in the sheaves

and on the winch drum.

Do Not Unwind the Wire Rope

If the entire rope is unwound from the winch drum,

the frictional anchoring force will be insufficient to

support a load. The rope will break or become dam-

aged.

At least three winds of rope must always be left on

the winch drum. This condition applies particularly

when a load must be lowered below ground level

such as a trench or excavation.

T00026

T00024

Safety Rules Safety Rules

A-13

T019605E

T00015

Do Not Leave a Load Suspended

Do not leave a load in a hoisted position. Actuate

the winch brake to hold the load safely. Use working

procedures that minimize the duration a load is left

suspended.

Use the Crane Only for Approved

Applications

The crane is designed to lift a freely suspended ver-

tical load. Never attempt to lift persons, or push/pull

a load with the boom.

Do Not Add Counterweights

Installing a counterweight(s) other than those speci-

fied can damage the machine, or cause the machine

to overturn to the rear owing to decreased rearward

stability.

Never install or place a counterweight(s) or equiva-

lent other than those specified.

T03804

Do Not Position Any Part of Your Body

Do Not Anchor the Machine

Do not attempt to hold down the crane frame or out-

rigger or contrary side to the lifted load, using wire

rope.

This practice might lead to crane damage or an acci-

dents.

T00002

Out of the Window on the Boom Side

Sticking any part of your body out from the window

on the boom side can result in being caught be-

tween the moving boom and the window frame.

Serious injury or death can result from this danger-

ous practice.

If the window is equipped with a confining guard, do

not remove it.

Do Not Look Away from the Load While
Operating the Crane

Looking away from the load, eating or performing

any other action that can detract from awareness

while operating the crane is very dangerous.

During operation, concentrate all attention on the

load and the signal person.

T00018

Safety Rules Safety Rules

A-14

T019605E

T00027

Do Not Pass a Load over Any Person

Passing a load over a person(s) is very dangerous

and must be avoided.

Do not allow anyone to enter the area below the

boom or the load.

Do Not Pull a Load Sideways, Do Not Lift

a Load Obliquely, Do not Drag a Load

Pulling a load sideways, lifting a load obliquely or

attempting to drag a load is very dangerous. Such

actions can damage the boom, jib or swing mecha-

nism, and lead to overturning of the crane.

Do not attempt to draw in a load that is located out-

side the load radius. To handle such a load, move

the crane to the vicinity of the load, and lift it verti-

cally.

Do Not Leave the Operator’s Cab While a

Load Is Suspended

Before leaving the operator’s cab for any reason, be

sure to:

• Lower the load to the ground.

• Fully retract the boom and stow it.

• Actuate all brakes.

• Place all control levers in their neutral positions.

• Shut off the engine, and remove the starter key.

• Lock the crane operator’s cab door.

Never Allow Anyone to Ride on the

Machine, Except the Operator

If any persons other than the operator (in the opera-

tor’s seat) are on the machine, they must be

stationed inside the operator’s cab.

Do Not Allow Anyone to Ride on the

Machine

Persons on the machine other than the operator (in

the operator’s seat) may fall or be caught by a ma-

chine component or other objects. Other persons

cause distraction and can disturb the attention and

work of the operator.

T00017

Do Not Push or Pull an Object with the

Boom

Never use the boom to push or pull an object. Do

not use the boom to thrust up an object or force the

boom into an object.

To move an object, use a machine designed for that

purpose, such as a fork lift truck or carryall.

Do not use the crane in applications other than

those specified.

T00016

Safety Rules Safety Rules

A-15

T019605E

T20527

Caution while Using the Jib (1)

Never attempt to lift separate loads on both the

boom and jib at the same time, or a single load us-

ing both the main and auxiliary winches.

Such practices can damage the boom or jib, or over-

turn the machine.

Caution while Using the Jib (2)

Lifting a load on the boom with the jib mounted

should be avoided, if possible.

If conditions require such a lift, observe the instruc-

tions given in the “AML” section of the manual and

perform the operation with the utmost care and at-

tention.

Mount and Stow the Jib Correctly

Failure to observe the specified procedures for

mounting and stowing the jib can damage the jib, or

may cause the jib to drop.

Be sure to mount and stow the jib in the correct

manner by referring to the “Jib” section in the man-

ual.

T00649

T00013

Safety Rules Safety Rules

A-16

Rules for Operation (Weather)

Stop Operation When Visibility Becomes

Poor

During bad weather such as rain, snow or fog, stop

operation and stow the machine. Wait until visibility

improves before resuming operation.

T019605E

Stop Operation When Strong Winds are

Present

Under strong winds, a lifted load will start swaying,

posing a danger to working personnel and nearby

structures and also possibly damaging the boom or

overturning the machine.

The influence of cross wind on machine stability is

directly proportional to length of the boom and size

of the load.

When the maximum instantaneous (i.e. gust) wind

speed exceeds 10 m/sec, stop crane operation and

stow the boom.

When the boom is substantially extended or a large-

sized load is lifted, stop crane operation even if the

wind speed is below 10 m/sec if there is any possi-

ble danger.

The table below lists wind speed ranges and the

ground conditions for each range. Note that the

wind speeds in the table are those at a point 10 m

above open level ground.

T00037

Stop All Operation If There is Any

Likelihood of Lightning

Lightning can not only damage the machine but also

injure the operator and working personnel. If light-

ning is forecast or expected, stop operation, stow

the boom, and leave the machine.

If the machine is struck by lightning:

• Stay in the cab. Do not try to move out.

• Warn people around not to approach the machine.

• Afterward, inspect the entire crane carefully and

have any damaged parts repaired.

Wind speed (m/sec) Ground conditions

5.5– 8.0

8.0–10.8

10.8–13.9

13.9–17.2

Safety Rules Safety Rules

Dust is raised, paper whirls up,

and small branches sway.

Shrubs with leaves start swaying.

Wave crests are apparent in

ponds or swamps.

Tree branches move. Power lines

whistle. It is difficult to open an

umbrella.

Whole trees sway. It is difficult to

walk against the wind.

T00038

A-17

T019605E

Cautions in Cold Weather

• Snow or ice on the crane should be removed be-

fore operation; it is especially important to

eliminate any accumulation on the boom, as it

could fall and injure someone when the boom is

moved.

• Do not let bare skin come in contact with the ma-

chine’s metallic parts when the temperature is

below freezing. Skin can freeze to the metallic sur-

face, if any moisture is present.

• Warm up the machine sufficiently. Then, check

that the machine is functioning correctly. Remove

ice and dry machine components as required.

• After starting operation, run the machine slowly

until oils fully circulates through all machine com-

ponents.

• Before lifting, make sure that the load is not

frozen to the ground or any other objects.

Attempting to lift a load which is frozen to the

ground can result in severe overloading and is

very dangerous.

• If possible, stow the machine indoors so that the

tires are not frozen to the ground. Remove mud

from the undercarriage.

• Maintain the battery. Use oils and fuel rated for

cold weather.

Rules for Operation

(Power Lines, Radio Waves)

Prevent Electric Shock Accidents

Approaching too close to power lines can result in

electric shock accidents. If conditions absolutely re-

quire operation near power lines or distribution

lines, implement the following preventive measures:

• Meet with the power company concerned to devel-

op a relevant safety plan.

• Require that working personnel wear approved

insulating shoes.

• Keep the crane and load beyond the required dis-

tance (stipulated by national or local laws and

regulations) and away from power lines.

• Post a full-time signal person to ensure the ma-

chine or load does not approach power lines or

unauthorized personnel do not enter the work

area.

• Personnel on the ground must not directly touch

the machine or load. When necessary to control

the lifted load, use dry fiber ropes as tethers to

prevent the load from rotating or swaying.

• Do not place a load below or near power lines.

• Operate the crane slowly with the utmost care and

attention.

(The data shown below describes the required dis-

tance recommended by Japanese power

companies.)

Voltage Required stand-off distance

Low voltage 100 V, 200 V

High voltage 6,600 V

22,000 V 3 meters

66,000 V 4 meters

Extra high 154,000 V 5 meters

voltage 187,000 V 6 meters

275,000 V 7 meters

500,000 V 11 meters

Should an electric shock accident occur, do not

panic. Follow the instructions below:

• Contact the power company to cut off the power

and obtain instructions for emergency action.

• Direct all personnel around the machine to evacu-

ate the site. Strictly control the site and keep

everyone away from the electrified crane and load.

Safety Rules Safety Rules

A-18

2 meters

Safety Rules Safety Rules

A-19

T019605E

T00650

Rules for Operation

(Special Operation)

Be Cautious in Multi-Crane Operation

Lifting a load with two or more cranes can be dan-

gerous. In these operations, loads are lifted at

points other than directly above the center of gravity

and there is possibility of the load falling, the ma-

chine being overturned, or the boom failing.

In multi-crane lifting operations, be absolutely care-

ful, and adhere to the following instructions:

• Meet with personnel to determine the proper

working procedure and lift strategy.

• Assign a work leader, and follow instructions.

• Equip every person concerned with an appropri-

ate communications device.

• Set each crane level on firm ground with the out-

riggers fully extended.

• The cranes used must have the same perfor-

mance, characteristics and sufficient capacity for

handling the load. Make sure that the cranes have

the same settings for the boom length, boom an-

gle, and number of rope parts.

• Lift the load so that the wire rope(s) of each crane

are only subjected to vertical line pulls.

• Attempt to rig the load so that all the cranes are

loaded equally.

• To move the load, use only the winches and

booms. Swinging operations should be avoided.

Do not perform hoisting, elevating (or telescop-

ing) of the boom or swinging at the same time.

• To prevent overloading, operate the separate

cranes simultaneously.

After Operation

After Operation, Stow the Machine

Leaving the machine unattended should be avoided.

Once operation is complete, stow the machine.

T21496

Cautions for Refilling the Fuel

Fuel and other oils are highly flammable and dan-

gerous.

Handle combustibles very carefully.

While refueling, observe the following instructions:

• Stop the engine.

• Refuel the machine outdoors in a well-ventilated

place.

• Keep sources of flames or sparks away from the

fuel.

• Wear a protective mask.

• Do not refuel in excess of fuel tank capacity.

A00195

Safety Rules Safety Rules

A-20

T019605E

T21496

Rules for Road Travel

Observe All Vehicles Code

Requirements for Travel on Public Roads

Some national and local laws and rules exist regard-

ing the travel of crane vehicles on public roads.

Before traveling on roads, study the requirements

for road travel for the crane, and strictly obey all the

regulations.

Driving Crane (Carrier) in Road Travel

Configuration

A swaying hook block or boom, or extended outrig-

gers pose extreme hazards during crane road travel.

Before traveling, stow the hook block and boom in

position, and lock the outrigger beams, etc., in posi-

tion (if lock pins are available). Give a traveling

configuration to the machine by referring to the

manual.

Be Aware of Overhead Obstacles

Pay attention to overhead clearance when passing

under electric car wires, highway or railway bridges,

and passing through a tunnel.

If the planned route necessitates travel below over-

head railway lines or overhead bridges or through a

tunnel, check the clearances in advance.

T21495

Do Not Travel with Any Cargo on the

Crane

Carrying cargo on a traveling crane can result in a

spill or fall. Use a vehicle designed specifically for

cargo transport.

Safety Rules Safety Rules

A-21

Safety Rules Safety Rules

A-22

T019605E

T01951

Meet with Working Personnel

Working together with other persons on inspection

or maintenance tasks without observing mutually

agreed upon procedures can result in an accident.

Meet with all involved personnel to agree on the de-

tailed tasks. Also, assign a work leader, and always

follow his or her instructions.

Provide Effective Ventilation

Performing inspection or maintenance work in a

confined space without effective ventilation can lead

to toxic poisoning.

Be very careful when handling fuel, wash oil, and

paint.

When starting the engine in an enclosed space, pro-

vide a means of positive ventilation. Connect a hose

from the exhaust to vent the fumes outdoors. Open

doors and windows to allow fresh air circulation.

Install a ventilator as required.

Fire Prevention

To prevent the risk of fire during inspection and

maintenance work requiring handling of potentially

flammable substances, observe the following in-

structions.

• Use a non-flammable cleaning liquid to wash

parts and components.

• Store fuel and oils away from fire.

• Do not allow sources of flames or sparks near any

substance that is combustible.

• Do not smoke cigar or cigarette.

• Always carry a fire extinguisher in the operator’s

cab.

• When checking fuel, oils, and battery liquid, use

an explosion-proof lamp.

• When grinding or welding, keep flammable sub-

stances away from flying sparks or molten metal.

About Illumination

Inspection or maintenance work in a poorly illumi-

nated environment can lead to injury. Before

starting the work, provide proper illumination.

Never use the exposed flame of a match or lighter

for illumination, a fire accident may occur. The emit-

ted gas from open lead storage batteries can

explode.

Use explosion-preventive type illuminating devices

when checking fuel and battery liquid level.

Safety Rules Safety Rules

A-23

T019605E

Clean the Machine before Inspection

or Maintenance

Dirt and debris on the machine not only prevents

easy detection of faulty components or parts but

also can be trapped in components or parts. Also,

dust or mud can enter your eyes or cause you to

slip and be injured.

Before starting general inspection or maintenance

activities, wash the machine to ensure a safe work

area.

Cautions for Washing the Machine

Wet footing can cause to slip and fall injuries.

Always wear non-slip shoes.

When washing the machine with high-pressure

steam, the jet can penetrate skin or flying mud can

cause eye damage. Always wear suitable protective

gear during washing.

Do not direct water to electrical equipment, dis-

charge and/or shortcircuits can result and lead to

damage.

Labeling for Inspection or
Maintenance Work

If any unauthorized person starts the engine during

inspection or maintenance work, the machine may

be damaged or injury or even death may result.

When performing inspection or maintenance work,

remove the starter key, and post a “DO NOT OPER-

ATE” or “TAG OUT” sign on the door or control

levers of the operator’s cab as a warning.

Also, post relevant warning signs at entry to the

work area to prevent access of unauthorized per-

sonnel.

Start Inspection or Maintenance after
the Machine Has Cooled Down

When the crane is operated, various machine com-

ponents become very hot and can cause burns.

These components include the engine, muffler, en-

gine cooling water, radiator, hydraulic oil, reducer,

hydraulic equipment and hydraulic piping.

Allow these components and areas to cool down be-

fore starting inspection or maintenance work.

Inspect and Maintain the Machine on

Level Ground

It is difficult to inspect the machine properly if it is

parked on a slope or grade. Also, the machine is li-

able to start moving if not parked properly.

Park the crane on firm flat ground, activate the park-

ing brake, and chock the tires.

Keep the Work Area Clean and Tidy

Performing inspection or maintenance work in a dis-

orderly place can lead to personal injury or a falling

accident.

Remove obstacles.

Beware of High-Pressure Oils

High-pressure fuel or hydraulic oil that comes into

contact with skin or eyes can cause serious injury.

To avoid this danger:

• Release internal pressure, and only then, discon-

nect any piping.

• To check for leakage, wear protective goggles and

gloves and use a piece of cardboard or wood as a

monitor. Leaking high-pressure oil may be invisi-

ble.

Keep bare hands away from all leaking compo-

nents.

• Immediately obtain medical attention when high-

pressure oil accidentally cuts into skin or affects

the eyes.

Safety Rules Safety Rules

A-24

T019605E

T03835

Inspect or Maintain Equipment with

the Engine Shut Down

Performing inspection or maintenance work while

the engine is running is very dangerous, and should

be avoided. Unless otherwise necessary, be sure to

shut down the engine before starting inspection or

maintenance procedures.

Use Two Persons for Inspection or

Maintenance with the Engine Running

If for some reason it is necessary to perform an in-

spection or maintenance procedure with the engine

running, post at least two persons—one in the oper-

ator’s cab to shut down the engine immediately

when necessary, and the other(s) to perform mainte-

nance. During the maintenance, ensure safety of all

persons involved in the work.

Use Proper Tools

Performing inspection or maintenance work without

the proper tools not only decreases work efficiency

but also can lead to damage to parts or even injury.

Do not use improper or damaged tools.

Beware of Overhead Obstacles and

Footing

Lack of awareness or loose footing can cause head

impact with the hook block, boom, or jib or slip and

falls off the machine.

Always be careful about overhead obstacles and

footing. Walk on the non-slip strips if provided on

the machine.

Cautions for Working at Heights

Working at heights involves the possibility of falling.

To reduce this risk, remove all obstacles, and any

spilled grease and oil. Keep all footing areas clean

and tidy.

To climb onto and descend from a position of high

elevation, face the machine directly. Use the

handrails and steps, always be supported by at least

three points of your hands and feet.

Be careful not to slip. When non-slip strips are pro-

vided on the machine, walk on them.

Use safety equipment such as safety belts ties, lan-

yards and platforms as the situation requires.

Cautions for Working Under the

Machine

When working under the crane with the jack cylin-

ders extended, place supports and wood blocks

beneath the outriggers to support the machine se-

curely. Do not work under the crane unless the

machine is securely and positively supported.

Do Not Stick Any Part of Your Body

Out from the Window on the Boom Side

Sticking any part of your body out from the window

on the boom side can result in being caught be-

tween the moving boom and the window frame.

Serious injury or death can result from this danger-

ous practice.

If the window is equipped with a confining guard, do

not remove it.

Safety Rules Safety Rules

A-25

T019605E

T00046

Keep Away from Moving Parts

Inadvertent motion of the machine, or contacting a

moving part can cause personal injury and even

death.

When necessary to inspect or maintain the machine

while running, do not approach moving parts such

as the boom, elevating cylinder, winch, fan, fan belt,

and propeller shaft, etc.

Keep hands and clothing away from moving parts.

Beware of an Overheated Cooling

Do Not Allow Tools and Parts to Drop

When working through an inspection hole while fac-

ing down, be careful not to drop objects into the

hole. Such mistakes can damage or lead to malfunc-

tion of the machine. Do not keep objects which are

not needed for inspection in open pockets.

Recover any object or tool that has dropped into the

machine.

Beware of Oil Smears

Oil smears on the clutch, lining and brake disks can

decrease braking effectiveness. Always keep these

assemblies free from oil accumulation.

Beware of Dust

Be careful not to inhale dust during inspection or

maintenance work. To inspect or maintain brakes

and linings, remove dust using a vacuum cleaner.

Do not use compressed air because this action will

scatter dust into the air.

System

Do not unfasten the radiator cap while the engine

cooling water is hot. Hot steam and water can spurt

out, causing burns.

First allow the radiator to cool down. Then, loosen

the cap very slowly while facing away to release the

internal pressure.

T00044

Lock the Inspection Hole Covers

An inspection hole cover that remains open can be

closed abruptly by a gust, etc., causing hands or a

leg to be caught and injured.

If an inspection hole cover or access door, or the

operator’s cab door must remain open, secure in po-

sition.

Safety Rules Safety Rules

A-26

T019605E

T21796E

1

4

2

3

Service vehicle battery

Booster cable

Booster cable

Disabled vehicle battery

Frame

About Starting the Engine with

Booster Cables

Using improper booster cables to start the engine

can cause the battery to explode or damage the ma-

chine.

When starting the engine using booster cables,

wear protective goggles. This procedure requires

two persons; one person must be seated in the op-

erator’s cab. The procedure consists of:

(1) Use an assist vehicle with a battery rated for 24

V. Do not use a 12 V or 48 V supply.

(2) Set the starter key to “OFF” position both for the

dead vehicle and assist vehicle.

(3) Connect the booster cables in the following or-

der:

[1] “+” terminal of the battery on the dead vehi-

cle.

[2] “+” terminal of the battery on the assist vehi-

cle.

[3] “-” terminal of the battery on the assist vehi-

cle.

[4] A portion of the frame or engine block of the

dead vehicle, apart from its battery.

(4) Start the engine of the assist vehicle.

(5) Start the engine of the dead vehicle.

(6) Once the engine of the dead vehicle has suc-

cessfully started, disconnect the booster cables

in the order of [4], [3], [2] and [1].

Disconnect the Battery Cable before
Inspecting or Maintaining the Electrical
System

Inspecting or maintaining the electrical system with-

out disconnecting the battery cable can cause the

wiring to be shortcircuited, possibly damaging the

electrical and electronic systems.

Before inspecting or maintaining the electrical sys-

tem, disconnect the battery cable from the minus

terminal (ground side) of the battery.

Be Cautious about Battery Fluid

The battery fluid contains dilute sulfuric acid.

Battery fluid entering the eyes could cause blind-

ness, and battery fluid on skin can cause burns.

When handling the battery, wear protective goggles,

protective gloves, and long-sleeved clothing.

If battery fluid touches your eyes or skin, wash with

a large amount of fresh water and seek medical at-

tention immediately.

Prevent Explosion of the Battery

The battery releases hydrogen gas. Do not light a

match or lighter near the battery.

To check the battery fluid level, use a flash light.

If battery fluid is frozen in extreme freezing weather,

do not charge the battery or start the engine with an

alternative power supply.

Warm up the battery to 15°C so to avoid trouble.

Safety Rules Safety Rules

H

L

Careful Handling of Wire Ropes

Careless handling of wire ropes can shorten their

service life, or cause them to break. Handle wire

ropes properly by observing all instructions in the

manual.

A-27

T00043

Safety Rules Safety Rules

A-28

Warning Labels Warning Labels

A-29

Warning Labels-Location and Contents

1. PROHIBITION OF CLIMBING ON BOOM

JIB AND OUTRIGGERS

2. CAUTION TO BOOM IN MOTION

3. JIB PIN STATUS

4. WARNING IN JIB OFFSET

5. WARNING ON STOWING THE SINGLE TOP

6. JIB HANDLING INSTRUCTIONS

7. CAUTION TO BOOM SWING

8. CAUTION IN JIB OFFSET

9. WARNING ON TOP JIB

10. CAUTION IN HANDLING JIB

Warning Labels Warning Labels

11. CAUTION TO OVERRIDE FUNCTION

12. CAUTION TO LIVE LINES

13. CAUTION IN HANDLING OVERRIDE KEY

SWITCH

14. CAUTION TO OIL COOLER FAN

15. CAUTION IN HANDLING CONTROL

CONSOLE

16. CAUTION IN HANDLING SWING ROCK PIN

17. STOWING AUXILIARY WINCH ROPE

A-30

1.

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ᨆᨅ᧾ ᧽ᨊᨀ ᨋᨑᨐᨎᨅᨃᨃᨁᨎᨏ

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2.

3. JIB PIN STATUS

Warning Labels Warning Labels

A-31

4. WARNING IN JIB OFFSET

᧿᧽ᨑᨐᨅᨋᨊ ᨐᨋ ᧾ᨋᨋᨉ ᨏᨓᨅᨊᨃ

5. WARNING ON STOWING THE SINGLE TOP

6. JIB HANDLING INSTRUCTIONS

7.

Warning Labels Warning Labels

A-32

8. CAUTION IN JIB OFFSET

᧿᧽ᨑᨐᨅᨋᨊ ᨅᨊ ᨄ᧽ᨊᨀᨈᨅᨊᨃ ᨆᨅ᧾

᧿᧽ᨑᨐᨅᨋᨊ ᨐᨋ ᨈᨅᨒᨁ ᨈᨅᨊᨁᨏ

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9. WARNING ON TOP JIB

12.

10.

11. CAUTION TO OVERRIDE FUNCTION

WARNING

WHEN THE OVERRIDE KEY SWITCH LOCATED OUTSIDE THE

CRANE CAB IS ACTIVATED, AND THE AML OVERRIDE KEY

SWITCH LOCATED IN THE RIGHT SIDE OF THE AML IS IN

OVERRIDE, THE SYMBOL LIGHTS UP.

ALL SAFETY STOP FUNCTION WILL BE DISABLED WITH THIS

LIGHT ON.

CONTINOUS SAFE OPERATION IS CONTRLED ONLY BY THE

OPERATOR

13.CAUTION IN HANDLING OVERRIDE KEY

SWITCH

WARNING

THIS KEY SWITCH BYPASSES CONTROL LEVER

LOCKOUT FUNCTION OF AUTOMATIC MOMENT LIMITER

(AML-L). THE SWITCH MAY BE ONLY USED BY

AUTHORIZED PERSONNEL DURING EMERGENCY

SITUATIONS. FAILURE TO FOLLOW THIS INSTRUCTION

MAY RESULT IN PROPERTY DAMAGE AND OR

PRESONAL INJURY.

14.

Warning Labels Warning Labels

A-33

15.

&$8 7,21,1+$1' /,1*& 21752/

&2 162/(

WARNING

PULL THE CONTROL CONSOLE BACKWARD TO THE

STOWING POSITION WHEN TRAVELING OR GETTING OUT

OF THE CAB.

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2)&21752/&2162/

7$.(&$5(72&/26(7+('225:+(17+(&21752/

&2162/(,6835,*+7

16. CAUTION IN HANDLING SWING ROCK

PIN



CAUTION

ᨑᨏᨁᨐᨄᨁᨏᨓᨅᨊᨃᨈᨋ᧿ᨇᨀᨑᨎᨅᨊᨃ᧿ᨎ᧽ᨊᨁ

ᨋᨌᨁᨎ᧽ᨐᨅᨋᨊ᧪

ᨐᨄᨁᨏᨓᨅᨊᨃᨈᨋ᧿ᨇᨅᨏᨁᨊ᧽᧾ᨈᨁᨀᨋᨊᨈᨕᨓᨄᨁᨊᨐᨄᨁ

᧾ᨋᨋᨉᨂ᧽᧿ᨁᨏᨐᨄᨁᨂᨎᨋᨊᨐᨋᨎᨎᨁ᧽ᨎ᧪

17. STOWING AUXILIARY WINCH ROPE

Warning Labels Warning Labels

A-34

Contents Contents

1

Contents Contents

2

Servicing and Ordering Parts

When contacting the TADANO distributor or dealer for

repairs or to order parts, please specify the following

information:

(1) Specification number
(2) Production serial number
(3) Year of production

(4) Details of the problem, or the listing, number and

quantity of desired parts

Servicing and Ordering Parts

4

Servicing and OrderingParts

Components

The directional terms (front, rear, right and left) used in

this manual are defined with reference to the driver's

position when seated in the carrier driver's cab. Their

definitions remain the same even when the crane's upper

structure is turned.

ƹ The illustrations may slightly differ from the actual
machine, due to designing alteration.

Components Components

5

Layout of Controls Layout of Controls

of Controls

6

1. AML cancellation warning lamp ・・・・・・・・・・・・・29

2. Jib lock indicator lamp ・・・・・・・・・・・・・・・・・・・100

3. Hydraulic oil pressure 50°C indicator lamp・・・・・126

4. Hydraulic oil pressure 85°C warning lamp ・・・・・126

5. Boom telescoping operation indicator lamp ・・・・・75

6. Auxiliary hoist operation indicator lamp ・・・・・・・・72

7. Boom telescoping mode II indicator lamp ・・・・・・75

8. Boom telescoping mode I indicator lamp ・・・・・・・75

9. Low noise mode switch ・・・・・・・・・・・・

10. Front wiper switch ・・・・・・・・・・・・・・・・・・・・・・126

11. Front washer switch ・・・・・・・・・・・・・・・・・・・・・126

12. Swing free/lock selector switch ・・・・・・・・・・・・・・84

13. Boom telescoping /auxiliary hoist control selector

switch ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・

14. Boom telescoping mode I/II switch ・・・・・・・・・・・75

15. AML (overload prevention device)・・・・・・・・・・・・29

16. Winch drum rotation indicator (option) ・・・・・・・・・72

17. Overwind cutout release switch・・・・・・・・・・・52, 72

18. AML override switch・・・・・・・・・・・・・・・・・・・・・・29

19. Swing brake switch ・・・・・・・・・・・・・・・・・・・・・・84

20. Swing stop override switch

21. Slow elevation stop switch ・・・・・・・・・・・・・・・・・81

22. Starter switch ・・・・・・・・・・・・・・・・・・・・・・・・・・54

23. Accelerator lock knob・・・・・・・・・・・・・・・・・・・・・70

24. Cigarette lighter ・・・・・・・・・・・・

25. Ashtray ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・126

26. Boom elevating control lever ・・・・・・・・・・・・・・・81

27. Main hoist control lever ・・・・・・・・・・・・・・・・・・・72

28. Accelerator pedal・・・・・・・・・・・・・・・・・

29. Lever stand unlock lever ・・・・・・・・・・・・・・・・・・66

30. Boom telescoping /auxiliary hoist control lever

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・72, 75

31. Head/end boom extension switch ・・・・・・・・・・・・75

32. Horn switch ・・・・・・・・・・・・・・・・・・・・・

33. Swing control lever ・・・・・・・・・・・・・・・・・・・・・・84

34. Boom telescoping control pedal ・・・・・・・・・・・・・75

35. Boom elevating control pedal ・・・・・・・・・・・・・・・81

36. Power window switch・・・・・・・・・・・・・・・・・・・・・66

37. Heater control panel (option) ・・・・・・・・・・・・・

38. Oil reservoir・・・・・・・・・・・・・・・・・・・・・・・・・・・・70

・・・・・・・・・・・・・・・・・84

・・・・・・・・・・・・126

・・・・・・126

72, 75

・・・・・・・70

・・・・・・・84

・125

T038261E

136

Layout of Controls Layout of Controls

7

T038261E

54

D E F

MODE

C

OO

L

H

OT

O

N

O

F

F

A

/

C

R

/

F

ON

ON

ON

INT

3B

〜 

2B

39 40 41 42 43 44 45 46 47

52

51

53

48

49

50
48

39. Roof washer switch ・・・・・・・・・・・・・・・・・・・・・126

40. Roof wiper switch・・・・・・・・・・・・・・・・・・・・・・・126

41. Flood lamp switch ・・・・・・・・・・・・・・・・・・・・・・126

42. Oil cooler switch ・・・・・・・・・・・・・・・・・・・・・・・126

43. Emergency outrigger control switch ・・・

44. Emergency outrigger control indicator lamp ・・・・・29

45. 2nd boom emergency telescoping switch ・・・・・・75

46. 3rd/4th/top boom emergency telescoping switch

・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・75

・・・・・・・29

47. Air conditioner control panel (option) ・・・・・・・・・119

48. Cab lamp ・・・・・・・・・・・・・・・・・・・・・・・・・・・

49. Seat ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・66

50. Fan switch (option)・・・・・・・・・・・・・・・・・・・・・・126

51. Override key switch ・・・・・・・・・・・・・・・・・・・・・・29

52. Swing lock lever・・・・・・・・・・・・・・・

・・・・・・・11, 84

53. Power window close switch ・・・・・・・・・・・・・・・・66

54. External warning lamps ・・・・・・・・・・・・・・・・・・・52

T24020

・126

Layout of Controls Layout of Controls

8

Terminology

Lifting height

Load radius

Center of rotation

T102540E

Boom angle

T24419E

Boom length

T038270E

This section provides the meaning of some important

terms used in this manual.

Load Radius, Lifting Height

"Load radius" refers to the horizontal distance between

the crane's center of rotation and the vertical center of

the lifted load.

A "lifting height" is defined for each load radius and

refers to the vertical distance between the ground and

the bottom of the hook block raised to its uppermost po-

sition.

Maximum Lifting Height

"Maximum lifting height" refers to the maximum lifting

height allowed.

Jib Length, Jib Offset Angle

"Jib length" refers to the center-to-center distance as il-

lustrated in the figure below.

"Jib offset angle" refers to the angle formed by the cen-

terline of an extended jib and the centerline of the boom.

Jib offset angle

Jib length

T20019E

Rated Lifting Capacity

"Rated Lifting capacity" refers to the maximum allowable

load for a particular boom length and load radius. The

mass of load handling devices such as hook blocks and

slings, shall be considered part of the load and must be

deducted from rated lifting capacities.

The mass of individual hook blocks are indicated in the

"INFORMATION AND DATA" section at the end of this

manual.

Boom Length, Boom Angle

"Boom length" refers to the distance from the pivot pin at

the foot of the boom to the center axis of the sheave (s)

at the boom head.

"Boom angle" refers to the angle formed by the boom's

centerline and the horizontal.

Mass of hook block

Rated lifting capacity

Lifting capacity

T21566E

Without Load

"Without load" is used to indicate that no load is being

lifted on the hook block.

Terminology Terminology

9

T038270E

Over-front

Over-side

Over-side

Over-rear

T00052E-1

Stability Section, Strength Section

"Stability section" refers to the section of the rated lifting

capacities table in which the major factor for determining

lifting capacity is the stability of the crane.

"Strength section" refers to the section of the rated lifting

capacity table in which the major factor for determining

lifting capacity is the structural strength of the crane.

In the rated lifting capacities table, the capacities given

above the blue line are those determined based on

structural strength, and the capacities given below are

determined based on stability.

Over-front, Over-rear, Over-side

"Over-front" refers to the forward working area of the

carrier for which lifting capacities have been rated and

listed in the rated lifting capacities table.

"Over-rear" corresponds to the rear working area for

which lifting capacities have been rated and listed in the

rated lifting capacities table.

"Over-side" refers to the working areas not included in

"over-front" and "over-rear".

Outrigger Extension Widths

"Outrigger extension width" refers to the horizontal dis-

tance between the centers of the right and left outrigger

floats when the outriggers are extended.

(1) Full extension width of outriggers (L1)

The distance between outriggers when they are fully

extended.

(2) Middle extension width of outriggers (L2)

The distance between outriggers when they are ex-

tended halfway.

(3) Minimum extension width of outriggers (L3)

The distance between outriggers when they are not

extended.

L 3

L 2

L 1

T00053

Over-front, Over-rear and Over-side

Capacities

"Over-front capacity", "over-rear capacity" and "over-

side capacity" refer to the rated lifting capacity that can

be lifted in the over-front, over-rear and over-side areas,

respectively.

360-degree Capacity

"360-degree capacity" means that the lifting capacities

are the same regardless of the area in which the load is

lifted.

Capacities with Outriggers at Full

Extension, Middle Extension and Minimum

Extension

(1) Capacities with outriggers at full extension

Lifting capacities specified for a crane supported on

fully extended outriggers.

(2) Capacities with outriggers at middle extension

Lifting capacities specified for a crane supported on

outriggers extended halfway.

(3) Capacities with outriggers at minimum extension

Lifting capacities specified for a crane supported on

outriggers not extended.

Raising Load Just Clear of Ground

This phrase is used to express the operation where the

load is hoisted up a few centimeters above the ground

and held at that position.

Terminology Terminology

10

OPERATION

H000450E

Carrier Traveling Procedure—

T24431E

Jib

Rope arrester

ON

Summary

T039000E

WARNING

This summary describes briefly the essential

steps for traveling the crane. For detailed informa-

tion on the individual procedures, refer to the

appropriate pages in this section of the manual.

Do not travel until you have a complete under-

standing of all the instructions and information

given in this section.

The precautions you must observed when trav-

eling are described in the "Safety" section at the

beginning of this manual. Carefully read the sec-

tion before traveling the crane.

If you find anything abnormal with the crane

during traveling, stop the operation immediately,

check and locate the cause, and repair any faulty

components. To prevent accidents, do not travel

until repairs have been completed.

Preparatory Steps

◆For detailed information on the individual procedures,

refer to the sections shown in parentheses.

1. Set the crane as described in "At the End of

Operation" of "Crane Operation Procedure-Summary"

section.
("Crane Operation Procedure-Summary" …………P. 13)

3. Check that the swing brake switch is turned on.

("Swinging the Boom" ………………………………P. 84)

OFF

ON

AML

AML

50℃ 

JIB LOCK

85℃ 

ON

INT

FREE

H

L

E

U

F

L

◆Activate swing lock lever only to travel for a small dis-

tance with the crane out of traveling configuration for

unavoidable reasons.

Swing lock is not available while the boom is stowed on

the boom rest.

Swing lock lever

Swing brake switch

RELEASE

SWING LOCK

LOCK

(ON)

(OFF)

T24420E

2. Make sure that the wire rope is reeved through the

rope guide.

("Taking Out and Stowing the Main Hook Block"

……………………………………………………P. 88)

T30142E

Carrier Traveling Procedure—Summary Carrier Traveling Procedure—Summary

11

Outrigger Operations for Traveling a

e

e

s

r

.

,

e

5

g

th

T

a

d.

.

k

-

.

Outrigger Operations for Traveling a

Small Distance

Small Distanc

WARNING

If the crane is moved without proper traveling

precautions, it may overturn.

For traveling without setting the crane in traveling

configuration, make the following preparations for

preventing overturning:

ake sure that the tire air pressure is kept at th

• Make sure that the tire air pressure is kept at the

2

pecified value (850 kPa [8.5 kgf/cm]). If the ai

specified value (850 kPa [8.5 kgf/cm

pressure is not insufficient, inflate the tires.

pressure is not insufficient, inflate the tires

• Retract the boom fully (to the length of 11.1 m),

Retract the boom fully (to the length of 11.1 m)

set the boom angle to 45°, retract the jib fully (to

set the boom angle to 45, retract the jib fully (to

the length of 9.0 m), and set the jib offset angle

the length of 9.0 m), and set the jib offset angl

to 5°.

to

• Orient the boom directly forward or backward

rient the boom directly forward or backward

and fix it with the swing lock pin before applying

nd fix it with the swing lock pin before applyin

the swing brake.

e swing brake.

• Observe the specified boom elevation angle. For

detailed information, refer to the “Weight

Distribution Chart” in the INFORMATION AND

DATA section.

To prevent overturning, do not travel with a

o prevent overturning, do not travel with

load hoisted.

oad hoiste

To prevent overturning, do not perform crane

operation during traveling.

Do not travel on the soft ground. Otherwise the

tires may fall in the ground and the crane may

overturn.

For safety, avoid starting or stopping sudden-

ly.

]). If the air

T039000E

1.

Set the crane as in the above described warning.

2. If the front jack is already extended, retract it.

If the front jack is already extended, retract it

3. Perform the jack stowing operation until the jack

Perform the jack stowing operation until the jac

floats are raised slightly from the ground.

floats are raised slightly from the ground.

4. Travel slowly at the speed below 5 km/h paying at-

4

Travel slowly at the speed below 5 km/h paying at

tention to the surroundings.

tention to the surroundings

5. After traveling, set the outriggers immediately.

Carrier Traveling Procedure—Summary Carrier Traveling Procedure—Summary

12

Crane Operation Procedure—

O

F

F

O

N

AML

MIKUNIMIKUNI

MY30

F

U

E

L

L

H

JIB LOCK

AML

50℃ 

85℃ 

ON 

INT

  FREE

4

D E F

MODE

C

O

OL

H

OT

O N
O F F

A

/

C

R

/

F

O

N

O

N

ON

INT

3B

〜 

2B

5

3

2

1

1

T24037

Summary

T038280E

WARNING

This summary describes briefly the essential

steps for crane operation from start to finish. For

detailed information on the individual procedures,

refer to the appropriate pages in this section of

the manual. Do not operate the crane until you

have a complete understanding of all the instruc-

tions and information given in this section.

The precautions you must observe during crane

operation are described in the "Safety" section at

the beginning of this manual. Carefully read the

section before operating the crane.

If you find anything abnormal with the crane

during operation, stop the operation immediately,

check and locate the cause, and repair any faulty

components. To prevent accidents, do not operate

the crane until repairs have been completed.

Preparatory Steps

3. Make sure that the controls in the crane operator’s

cab are in the following positions:

(1) Main and auxiliary hoist levers, boom telescoping

lever, boom elevating lever and swing lever …Neutral
(2) Swing brake switch ………………………………“ON”
(3) Swing stop override switch …………………Activated
(4) Slow elevation stop switch …………………Activated
(5) Emergency outrigger control switch ……………“OFF”

◆For detailed information on the individual procedures,

refer to the sections shown in parentheses.

1. Perform pre-operational inspection.

(“Pre-operational and Periodic Inspection” ………P. 132)

2. Enter the cab, and adjust the seat and each lever

stand so that the levers and all other controls can be op-

erated easily.
(“Crane Operator’s Cab” ……………………………P. 66)

Position for crane operation

Lever stand

Unlock lever

Stowage position
(for traveling)

T23069E

4. Start the engine by using the starter switch in the

carrier driver’s cab.
(“Starting and Stopping the Engine” ………………P. 54)

5. Engage the PTO.

(“Operating the PTO and Warming Up the Machine”

……………………………………………………P. 57)

6. Let the machine warm up. While it is warming up,

check that all meter and monitor displays are normal

and that the machine is not making any abnormal

sounds.

(“Operating the PTO and Warming Up the Machine”

……………………………………………………P. 57)

7. Fully extend the outriggers and level the crane.

(“Outriggers” …………………………………………P. 58)

8. Extend the front jack.

(“Outriggers” …………………………………………P. 58)

13

Crane Operation Procedure—Summary Crane Operation Procedure—Summary

T038280E

9. Enter the crane operator’s cab, and adjust the seat

and the length of each lever so that you can easily oper-

ate the levers and all other controls.
(“Crane Operator’s Cab” ……………………………P. 66)

10.In the crane operator’s cab, turn the starter switch

ON.

11. Select the operational status on the AML.

(“AML <Overload Prevention Device>” ……………P. 24)

12.Take out the main hook block from its stowed posi-

tion.
(“Taking Out and Stowing the Main Hook Block” …P. 88)

13.Perform the preoperational checks for after the en-

gine has been started.
(“Preoperational and Periodic Inspection” ………P. 132)

14.Reeve the wire rope round the main hook block

sheaves as required for the operation.

◆Register the number of part lines of rope on the AML if

the actual number is smaller than the standard one.
(“Reeving the Wire Rope”……………………………P. 90)

15.Mount the single top or jib as necessary.

(“Single Top” …………………………………………P. 95)
(“Jib” …………………………………………………P. 100)

16.Select the operational status on the AML, when the

single-top sheave system or the jib is installed.
(“AML <Overload Prevention Device>” ……………P. 24)

During Operation

Follow the rated lifting capacity table to eliminate

1.

any possibility of overloading.
(“How to Read Performance Data Plate” …………P. 16)
(“Acceleration” ………………………………………P. 70)
(“Hoisting” ……………………………………………P. 72)
(“Telescoping the Boom” ……………………………P. 75)
(“Elevating the Boom” ………………………………P. 81)
(“Swinging the Boom” ………………………………P. 84)
(“Single Top” …………………………………………P. 95)
(“Jib” …………………………………………………P. 100)

◆When the AML activates an alarm in response to

overloading, take appropriate corrective measures.
(“AML <Overload Prevention Device>” ……………P. 24)

◆When an error occurs in the AML system, take the

corrective measure indicated by the failure message dis-

played on the AML.
(“AML <Overload Prevention Device>” ……………P. 24)

◆When a safety device other than the AML is activated

(such as the overwind cutout device), take the appropri-

ate corrective measures.
(“Other Safety Devices” ……………………………P. 52)

◆Use the air conditioner, and other equipment in the

crane operator’s cab, as necessary.
(“Equipment Inside the Cab” ………………………P. 125)

◆When the ambient temperature is high, use the oil

cooler as necessary.
(“Equipment Inside the Cab” ………………………P. 125)

Crane Operation Procedure—Summary Crane Operation Procedure—Summary

14

T038280E

T23069E

Lever stand

Unlock lever

Stowage position
(for traveling)

Position for crane operation

At the End of Operation

Stow the single top or jib.

1.

(“Single Top” …………………………………………P. 95)
(“Jib” …………………………………………………P. 100)

2. Stow the main hook block and stow the boom on

the boom rest.

(“Taking Out and Stowing the Main Hook Block”

……………………………………………………P. 88)

3. Make sure that the controls in the crane operator’s

cab are in the following positions:

(1) Hoist, boom telescoping, boom elevating, and swing

levers ……………………………………………Neutral

(2) Swing brake switch ………………………………“ON”

4. Return the lever stand to the stowage position.

11. Disengage the PTO.

(“Operating the PTO and Warming Up the Machine”

……………………………………………………P. 57)

12.Stop the engine by using the starter switch in the

carrier driver’s cab.
(“Starting and Stopping the Engine” ………………P. 54)

13.Perform the post-operational checks for the same

points as for the pre-operational checks. If anything ab-

normal is found, have it repaired before operating the

crane again.

5. Shut off the air conditioner, oil cooler and all other

equipment.
(“Equipment Inside the Cab” ………………………P. 125)

6. Close all the crane operator’s cab windows.

7. Remove the key from the starter switch in the crane

operator’s cab.
(“Starting and Stopping the Engine”…………………P.54)

8. Get out of the crane operator’s cab and lock the

door.
(“Crane Operator’s Cab” ……………………………P.66)

9. Retract the front jack.

(“Outriggers” …………………………………………P. 58)

10.Retract the outriggers completely.

(“Outriggers” …………………………………………P. 58)

Crane Operation Procedure—Summary Crane Operation Procedure—Summary

15

How to Read Performance Data

Plate

Working Radius/ Lifting Height Chart

ƹ The following diagram is an example of the
working radius/ lifting height chart. The chart for your

crane is located inside the crane operator's cab.

The working radius/ lifting height chart provides the

load radii and lifting heights in relation to different

boom lengths (jib lengths) and boom angles (jib offset

angles). Use the chart in conjunction with the rated

lifting capacity table when making an operation plan.
ƹWhile points A and B in the figure are at the same

load radius, point A denotes the boom angle (or jib

offset angle), and point B the lifting height.

ƹThe working radius/ lifting height chart does not in-

clude the effect of boom deflection. The greater the

mass o(the load is, the more the boom deflects,

causing the load radius to increase somewhat. Take

this effect into consideration when reading the

working radius / lifting height chart.

How to Read Performance Data Plate How to Read Performance Data Plate

16

Boom Telescoping Mode and Boom Length

and Boom Length

The telescoping mode I (the 2nd boom section extends

first during boom extension) and the telescoping mode II

(the 3rd through top boom sections extend first during

boom extension) are available. When the boom length is

any of the values listed in the load radius /lifting height

chart and the rated lifting capacity table, the boom con-

dition is among the one shown below.

How to Read Performance Data Plate How to Read Performance Data Plate

17

Rated Lifting Capacity Table

WARNING

The values shown in the rated lifting

capacity table are based on ideal conditions

where the crane is set level on a firm surface,

there is no wind or side load, and the load is

not swinging. When operating the crane under

these conditions is not possible, reduce the

load as necessary according to the actual

operating conditions.

ƹThe table shown below is an example of the rated

lifting capacity table. The rated lifting capacity table

for your crane is located in the crane operator's cab.
ƹIn the rated lifting capacity table, the values above

the blue line are based on the structural strength of

the crane, whereas the values below that line are

based on the stability of the crane.
ƹThe stability limit of the rated lifting capacities

does not exceed the values calculated in the Part

2/ISO 4305.
ƹFor the rated lifting capacities for the boom

lengths which are not listed in the chart, see the

AML display.

Rated lifting capacities tables are set up as shown

below with the kind of job and the outrigger

extension conditions. For actual values see the

rated lifting capacity tables provided in the crane

operator's cab.

Operation Outrigger extension

• Boom lift

• Single top lift

• Jib lift

Full extension (6.8 m)
Middle extension (4.6 m)
Minimum extension (2.39 m)
Full extension (6.8 m)
Middle extension (4.6 m)

How to Read Performance Data Plate How to Read Performance Data Plate

18

Below are some examples of rated lifting capacities

tables.

[Example 1: Boom lift with outriggers fully extended ]

T-550E-2 RATED LIFTING CAPACITIES (BOOM)

GT-550E-2 RATED LIFTING CAPACITIES (BOOM)

UNIT˖kg CLASS OF CRANE˖C3

Outrigger max extended6.8m

Working radius

3.0 55,000 40,000 28,000 20,000

3.5 43,700 40,000 28,000 20,000

4.0 38,500 38,100 28,000 20,000

4.5 34,200 33,800 28,000 19,800 20,000 14,000

5.0 30,800 30,400 28,000 19,000 20,000 14,000

5.5 27,800 27,400 27,200 18,200 20,000 13,600

6.0 25,400 25,000 24,700 17,500 20,000 12,800 14,000 8,000

6.5 23,200 22,800 22,500 16,800 18,900 12,000 14,000 8,000

7.0 21,400 21,000 20,700 16,200 17,800 11,400 13,500 8,000 8,000 8,000

7.5 19,700 19,300 19,100 15,700 16,700 10,800 13,000 8,000 8,000 8,000

8.0 18,300 17,900 17,600 15,200 15,800 10,200 12,500 8,000 8,000 8,000

9.0 15,200 14,600 14,200 14,300 14,200 9,300 11,300 7,600 8,000 8,000

10.0 11,600 11,300 13,500 12,500 8,500 10,400 7,000 7,500 8,000

11.0 9,500 9,100 11,400 10,300 7,800 9,600 6,400 6,900 7,500

12.0 7,800 7,500 9,600 8,600 7,200 8,800 5,800 6,400 6,900

14.0 5,100 7,200 6,200 6,200 6,800 4,900 5,500 5,900

16.0 3,500 5,500 4,500 5,400 5,100 4,200 4,700 5,200

18.0 3,300 4,700 3,900 3,600 4,100 4,200

20.0 2,400 3,700 3,000 3,200 3,600 3,200

22.0 1,700 3,000 2,200 2,800 2,800 2,500

24.0 1,200 2,400 1,600 2,500 2,200 1,900

26.0 1,200 2,100 1,800 1,400

28.0 800 1,700 1,400 1,000

30.0 500 1,400 1,000 700

32.0 1,100 700 450

34.0 500

Telescoping

mode

2nd boom 0 50 100 0 100 0 100 0 50 100

3rd boom 0 0 0 33 33 66 66 100 100 100
4th boom 0 0 0 33 33 66 66 100 100 100

Top boom 0 0 0 33 33 66 66 100 100 100

11. 1m
boom

ĉ,ϩ ĉ ĉ ϩ ĉ ϩ ĉ ϩ ϩ ĉ,ϩ

15.0m
boom

18.8m boom 26.6m boom 34.3m boom

Telescoping condition˄%˅

38.1m
boom

42.0m
boom

How to Read Performance Data Plate How to Read Performance Data Plate

19

[Example 2: Jib lift with outriggers fully extended ]

UNIT˖kg CLASS OF CRANE˖&

Outrigger max extended 6.8m

42.0m Boom

8.8m Jib 15.2m Jib

Boom angle

80° 3500 2500 1400 2300 1150 750

75°

72°

70° 3000 2100 1320 1750 950 610

65° 2300 1900 1250 1440 880 560

5°offset 25°offset 45°offset 5°orffset 25°offset 45°offset

3500 2330 1380 2100 1040 670

3300 2250 1350 1950 1000 630

60° 1400

55° 750

Boom angle

80°

75°

72°

70°

65° 2300 1900 1250 1440 880 560

60° 1900 1600 1150 1220 830 520

55°

50° 950 850 800 650 550 450

45° 500 450 450

Boom angle

80°

75°

72°

70°

65° 2300 1900 1250 1440 880 560

60° 1900 1600 1150 1220 830 520

5°offset 25°offset 45°offset 5°offset 25°offset 45°offset

3500 2500 1400 2300 1150 750

3500 2330 1380 2100 1040 670

3300 2250 1350 1950 1000 630

3000 2100 1320 1750 950 610

1450 1350 1080 1100 750 490

5°offset 25°offset 45°offset 5°offset 25°offset 45°offset

3500 2500 1400 2300 1150 750

3500 2330 1380 2100 1040 670

3300 2250 1350 1950 1000 630

3000 2100 1320 1750 950 610

1300 1150 1100 830 520

700 650 500 400 

UNIT˖kg CLASS OF CRANE˖&

Outrigger max extended6.8m

38.1m Boom (Telescoping modeϩ) or less than that

8.8m Jib 15.2m Jib

UNIT˖kg CLASS OF CRANE˖&

Outrigger max extended 6.8m

34.3m Boom (Telescoping modeĉ)or less than that

8.8m Jib 15.2m Jib

55°

50° 950 850 800 650 550 450

45° 500 450 450   

1450 1350 1080 1100 750 490

How to Read Performance Data Plate How to Read Performance Data Plate

20

Boom Lift

ĂĂĂ

γγ

γγ

γγ

γ
γ

γ

ĂĂĂ

Ċ ĂĂĂ

e

γ
γ

©

γ

Jib Lift

See the applicable section of the rated lifting capacity table and

find the rated lifting capacity value that corresponds to the boom

length and load radius

(1)

Use the section of the rated lifting capacity table that

corresponds to the status of the outriggers, front jack and

working area.

(2)

Take rated lifting capacity value W (tons) that corresponds

to the desired telescoping mode, load radius R (m) and boom

length L (m).

Load
radius(m)

Telescoping

mode

ƹ

The rated lifting capacity values for boom lift assume a

Outriggers fully extended

m

m

boom

boom •

R W

ĉ,Ċ ĉ ĉ

Lm boom

m boom

 

boom with jib and single top stowed.

ƹ

The rated lifting capacity values for boom lift are based on
the load radius. The load radii shown in the rated lifting capacity
table include the deflection of the boom under the mass of a
load. When determining capacity from the table, therefore, find
the rated lifting capacity value based on the actual measured
load radius.

ƹ

When the actual boom length exceeds the length specified

for a certain boom extension, check the rated lifting capacity

value for the specified length and for one stage longer, and use

the smaller of the two. (The value may be different from that

indicated by the AML)

ƹ

When the front jack is not extended, note that the lifting

capacity in the over-front area is poorer than in the over-rear

and over-side areas. Keep this in mind when swinging the load

from the over-rear or an over-side area to the over-front area.

ƹ

The mass of load handling devices such as hook blocks

and slings, shall be considered part of the load and must be

deducted from rated lifting capacities.

See the applicable section of the rated lifting capacity table and
find the rated lifting capacity value that corresponds to the boom
length and load radius.
(1) Use the section of the rated lifting capacity table that

corresponds to the status of the outriggers, front jack,
working area, boom length and boom telescoping mode.

(2)

Take rated lifting capacity value W (tons) that corresponds

to the desired jib length L (m), jib offset angle (°) and boom

angle (°).

Boom

angle

ƹ

The mass of load handling devices such as 4.5-ton hook

Outriggers fully extended

Telescoping mode

Lm Jib

offset

R

25' offset 45* offset

R

W

R

and slings, shall be considered part of the load and must be

deducted from rated lifting capacities.

Single Top Lift

ingle Top Lift

For operations with the single top mounted, use the boom lift

section of the rated lifting capacity table to find the allowable

load. Find the rated lifting capacity value based on boom

length and load radius. From that value, subtract the mass of

the main hook block. The resultant value is the rated lifting

capacity for a single top lift. However, remember that the

maximum rated lifting capacity for a single top lift is 4,500 kg.

When the result of the above calculation (< table value > - <

main hook block mass >) is over 4,500 kg, always regard the

main hook block mass >) is over 4,500 kg, always regard the

ated lifting capacity as 4,500 kg.

rated lifting capacity as 4,500 kg.

How to Read Performance Data Plate How to Read Performance Data Plate

21

T038290E

Working Area Chart

WARNING

While the swing stop override switch is shifted

to OFF, the crane does not automatically stop

even if it is overloaded by boom swing from an

area allotted with greater lifting capacities to an

area allotted with smaller lifting capacities.

Do not turn the swing stop override switch to OFF

unless for unavoidable reasons.

Applicable rated lifting capacities change as the ranges

of the over-front area, the over-side areas, and the over-

rear area vary, depending on the outrigger extension

width and whether the front jack is used.

The following figures show examples of the rated lifting

capacity in each condition.

The diagram indicating the working ares and their corre-

sponding rated lifting capacities for your crane is

included in the data plate file located in the crane opera-

tor’s cab.

Select the diagram that agrees with the desired condi-

tion of outrigger and front jack and see the lifting

capacity for each working area.

Traveling direction

N

K

L

M

Left Right

DC

MM

LL

KK

Front

A

G

Rear

B

H

I

J

K

L

M

F

E

T24321E

A: Over-front area

B: Over-rear area

C: Over-side area (right)

D: Over-side area (left)

E: Rated lifting capacity (capacity with outriggers at mini-

mum extension)

F: Rated lifting capacity (capacity with outriggers at mid-

dle extension)

G: Rated lifting capacity (capacity with outriggers at full

extension)

H: Minimum extension width of outriggers

I: Middle extension width of outriggers

J: Full extension width of outriggers

K: Position of outrigger jack with the beam not extended

L: Position of outrigger jack with the beam extended

halfway

M:Position of outrigger jack with the beam extended ful-

ly

N:Front jack

333-959-01140-0

How to Read Performance Data Plate How to Read Performance Data Plate

22

◆The area inside the bold line in the figure above

T30106E

340°  10° 

0° 

180° 

90° 270° 

145° 200° 

Left front outrigger
fully extended

Right front outrigger
extended to middle

Front jack extended

Right rear outrigger
fully extended

Left rear outrigger
extended to middle

shows the applicable rated lifting capacities.

◆Black marks among K, L, and M represent the actual

positions of outrigger jacks. The black marks in the

above figure shows that the left and right outriggers are

extended fully.

–Example–

While the outrigger extension is as shown below and the

front jack is used (extended), the rated lifting capacities

determined for each working area for boom lift are as

follows:

(1) Over-front area (340°–10°): capacities with outrig-

gers at full extension

(2) Over-right area (10°–145°): capacities with outrig-

gers at middle extension

(3) Over-rear area (145°–200°): capacities with outrig-

gers at full extension

(4) Over-left area (200°–340°): capacities with outriggers

at middle extension

If the outrigger extension is as shown below, the lifting

capacity turns from the one with outriggers at full exten-

sion into the one with outriggers at middle extension

when the boom passes the left rear (200° point) while

swung from the over-rear area into the over-left area.

The lifting capacity turns from the one with outriggers at

middle extension into the one with outriggers at full ex-

tension when the boom is swung further into the

over-left area (340°–10°).

T038290E

How to Read Performance Data Plate How to Read Performance Data Plate

23

AML (Overload Prevention

T23991

°

Device)

T038300E

WARNING

The AML operates properly only when it is

used exactly as instructed in this manual. If you

do not follow the specified AML and crane operat-

ing procedures, the crane could overturn or be

damaged, causing a serious accident. Be sure to

observe the following precautions for safe opera-

tion.

• Never perform any operation with the AML deac-

tivated.

• Place the crane on firm and level ground with

the outriggers extended and adjust the crane so

that it is level.

• Before starting operation, perform pre-opera-

tional checks on the AML to ensure that it is

operating properly.

• Always make sure that the actual outrigger ex-

tension width and the representation of the

outrigger extension width on the AML display

conform. Otherwise the crane may overturn.

• While the swing stop cancel switch is shifted to

OFF, swinging will not stop automatically even

if overloading occurs. The rated lifting capacity

may vary during boom swing, depending on the

outrigger extension width and the front jack

condition. When swinging the load to the area

allotted for smaller rated lifting capacities after

lifting it in the area allotted for greater rated lift-

ing capacities, pay attention not to overload the

crane after understanding the section “How to

Read Performance Data Plate”.

If the alarm buzzer sounds and the moment ratio

indication on the AML exceeds 100% while a

load is swung, stop swinging immediately. Then

lower the load or swing the boom back. (For the

specified values which trigger the alarm, see

“Configuration and Functions of the AML

System” section.)

• When the AML exceeds the specified value, the

alarm will sound intermittently. Slow the crane

operation and take great care. (For the specified

values, see the “Configuration and Functions of

the AML System” section.)

• Do not lift a load on the boom with the jib

mounted. If this must be done by unavoidable

reasons, a boom lift status, and not a jib lift sta-

tus, should be selected on the AML.

In this case, a precautionary warning is output

when the moment is below 75% and a limit warn-

ing is output when the moment is below 85%.

Remember that the warnings will be output earli-

er. (For the moment values corresponding to the

warning types, see the "Configuration and

Functions of the AML System".)

T50182

• Do not lift a single load using both the boom

and jib. If this must be done by unavoidable rea-

sons, a jib lift status, and not a boom lift status,

should be selected on the AML. (The figure

shows a 5° offset angle with the first jib section

extended.) Make sure that the mass of the load

(including the mass of the load handling de-

vices) is less than the specified rated lifting

capacity for the jib. If the load is left held up only

by the auxiliary wire rope when the main wire

rope is loosened, the load's center of gravity

moves to give an increased figure in moment

display. Take care to overloading.

AML (Overload Prevention Device) AML (Overload Prevention Device)

24

T038300E

m

Automatic stop function for overloading

Automatic stop function by boom upper angle restric-

t

hil

.

2

.

Slow stop function

• When the crane is automatically stopped during

operation toward critical condition (hoisting up,

boom extension or boom lowering), operate the

appropriate controls to move toward the non-

critical condition (hoist down, retract boom or

raise boom).

• Do not raise the boom to raise the load clear of

the ground. Doing so is dangerous because the

crane will not stop automatically even when it is

overloaded. Hoist up the load to raise it clear of

the ground. Once the load has cleared the

ground, stop hoisting and check for safety.

[NOTICE]

◆While the elevating cylinder is extended or retract-

ed to the full stroke, the display of the AML becomes

erroneous. In this case, elevate the boom in the op-

posite direction to terminate the stroke end

condition.

Configuration and Functions of the

onfiguration and Functions of the

AML System

AML Syste

The AML (Automatic Moment Limiter) system is a safety

device provided to prevent overloading of the crane

which may cause it to overturn or be damaged.

The AML system has various kinds of functions, includ-

ing the following four typical functions. Based on the

registered work conditions by operator selection and the

signals from various sensors, the crane operations are

controlled.

(1) Automatic stop function for overloading

The AML calculates and compares the working and

rated moment values and displays them as a per-

centage. When the working moment exceeds the

rated moment (100% or more), failure message is

shown, alarm buzzer sounds, and the crane opera-

tion toward the critical side stops.

(2) Automatic stop function by boom upper angle restric-

tion

ion

To prevent jib from contacting the hook block or wire

rope during boom lift or single top lift, a message and

an alarm is output and boom raising and boom re-

traction are halted in the following conditions:

• The boom is raised over approx. 76° while the

• The boom is raised over approx. 76w

boom extension is less than approx. 2 m.

boom extension is less than approx. 2 m

• The boom extension is reduced less than approx. 2

• The boom extension is reduced less than approx.

m while the boom angle is over approx. 76°.

m while the boom angle is over approx. 76°

e the

AML (Overload Prevention Device) AML (Overload Prevention Device)

(3) Working range limit functions

When any working range limit is registered to AML,

the crane is controlled so that the crane work posture

does not exceed this registered working range limit.

When the boom reaches the previously registered re-

striction, buzzer sounds, and the crane operation

stops.

(4) Slow stop function

The elevating speed slows down before the boom

stops slowly in the following conditions:

• Boom (lowering) stopping by overloading

• Boom (raising) stopping by boom upper angle re-

striction

• Boom reaches the stroke end (while raised and

lowered)

• Boom (raising and lowering) stopping by working

range limit function

25

The situation of automatic stop due to automatic stop

lly.

”

-

d.

function and working range limit function is as listed be-

low, depending on the working condition:

◎: Slow stop ○: Stop

Hoisting up ○
Automatic stop Boom lowering ◎
by overloading Boom extension ○

Swing ○
Boom upper Boom raising ◎
angle restriction Boom retraction ○
Stop at stroke end Boom raising/loweing ◎

Stop by working

range restriction

◆While the elevation slow stop cancel switch is in “OFF”

While the elevation slow stop cancel switch is in “OFF

position, the slow stop function for boom elevation is de-

position, the slow stop function for boom elevation is de

activated.

activate

◆While the automatic swing stop function is in “OFF”

While the automatic swing stop function is in “OFF”

position, swing does not stop automatically.

position, swing does not stop automatica

Boom raising/lowering ◎

Boom extension ○

Swing ○

T038300E

AML (Overload Prevention Device) AML (Overload Prevention Device)

26

AML System Configuration

L

θ

θu

θL

H

R

Boom length signal

Outrigger extension
width detector

Boom angle signal Moment ratio signal Swing angle signal Crane control position

signal

Working range limit
signal output

Alarm buzzer

External warning
lamps

AML unit

Boom
extension
halted

Boom lowering
halted

Hoisting up
halted

Upper boom angle
restricted
Lower boom angle
restricted

Lifting height
restricted

Load radius
restricted

Outrigger status

Lift status

Working range limits

Operator selection

Stop output when:

Moment ratio exceeds 100%
Overwinding occurs
Moment exceeding limit for
boom with jib mounted

Boom raising
halted
Boom retracting
halted

Boom upper
angle
restriction

T24085E

Number of part-lines of rope

Swinging
halted toward
critical side

Swing restricted

T038300E

θ

L

Display panel

AML system error occurs

AML (Overload Prevention Device) AML (Overload Prevention Device)

27

˄

˅

Automatic Stop Functions

r

g

g

Causes of

Operation

automatic stop

• Moment ratio

exceeds 100% (*1)

• Overwinding

• AML system erro

Upper boom angle

restricted

Lower boom angle

restricted

Lifting height

restricted

Load radius

Working range limit

restricted

Swing restricted • Boom swin

• Boom upper angle

restriction

• Boom lift

• Single top lift

• Jib lift

• Boom lift

• Single top lift

(*1): For the boom lift with the jib mounted,

automatic stop will work when the moment exceeds

85%.

Halted

movement

• Hoisting up

• Boom lowering

• Boom extension

• Boom swin

• Boom raising

• Boom lowering

• Boom raising

• Boom extension

• Boom lowering

• Boom extension

• Boom raising

• Boom retraction

Alarm Functions

Condition Alarm

Winch lever is moved
toward critical side (hoist
up, boom lowering or
boom extension) while
overwinding condition
exists.

Overwind cutout function
is released with the winch
overwound.

Moment ratio exceeds
90%

Moment ratio exceeds
100%

AML system error Moment display: Displays failure

Working range limit
function activated.

Slow stop control Moment display: Displays

Boom lift with jib mounted on boom

(1) Moment ratio is

between 75%and 85%

(2) Moment ratio exceeds

85%

Moment display: Displays
[Warning:0024].
Buzzer: Sounds continuously.

Moment display: Displays
[Warning:0015].
External warning lamps: Red
lamp is lit.
Buzzer: Sounds continuously.

Moment display: Yellow
segment(s) is lit.
External warning lamps : Orange
lamp is lit.
Buzzer: Sounds intermittently.

Moment display: Displays
[Warning:0023].
External warning lamps: Red
lamp is lit.
Buzzer: Sounds continuously.

messages.
Buzzer: Sounds 3 seconds.

Moment display: Displays failure
messages.
Associated restriction indicator
lamp flashes.
Buzzer: Sounds continuously.
AML buzzer: Sounds 3 seconds.

[Warning:0081]or[0082]
Buzzer: Sounds intermittently.

Moment display: Green
segment(s) is lit.
External warning lamps:
Orange lamp is lit.
Buzzer: Sounds intermittently.

Moment display: Displays
[Warning:0088].
External warning lamps : Red
lamp is lit.
Buzzer: Sounds continuously.

AML

ƹIn the above table, "Buzzer" is the device outside

the AML unit, outputting buzzing sound.

"AML buzzer" is the device inside the AML unit,

outputting beeping sound.
ƹThe AML buzzer sounds for 3 seconds every time

a message appears. It outputs long sounds when

slow stop control is activated and outputs short

sounds when other controls are activated.

Overload Prevention Device˅ AML˄Overload Prevention Device

28

Controls

1

D

E

F

MO

DE

C

O

O

L

H

O

T

O N

O F F

A

/

C

R

/

F

ON

ON

ON

INT

3B

〜 

2B

O

F

F

O

N

AML

MIKUNI

MY30

F

U

E

L

L

H

JIB LOCK

AML

50℃ 

85℃ 

ON 

INT

  FREE

1

6

5

2

T24147

4

3

T038300E

1. AML unit

2. AML override switch

3. Override key switch

AML Override Switch

Override Key Switch

These are emergency switches provided to stow the

boom when failure occurs in the AML system.

For details, see the “Disposition of System Troubles”

section.

Emergency Outrigger Control Switch

This switch is used to enable registering outrigger exten-

sion width temporarily on the AML and to sustain crane

operation while an error occurs on the outrigger exten-

sion detector.

◆For details, see the "Disposition of System Troubles"

section.

4. Emergency outrigger control switch

5. Emergency outrigger control indicator lamp

6. AML cancellation warning lamp

AML (Overload Prevention Device) AML (Overload Prevention Device)

29

Names and Functions of AML Main

T23984E

%

t

m

max t

m

m

Bargraph display

Display panel 1

Control

Display panel 2

A

Unit Parts

ML LIIB

T038300E

AML (Overload Prevention Device) AML (Overload Prevention Device)

30

Bargraph Display

T23213E

110 or more
than that

0–89 90–99

100–109

Each frame representing 10%

Each frame representing 2.5%

Each frame representing 2.5%

Usually on

1 23

4

T038300E

1. Moment ratio mark

The moment ratios on the bargraph are color coded as

follows:

safe (green), notice (yellow) and limit (red).

2. Moment display

Normally displays a moment ratio on a bargraph.

Displays the main-circuit oil pressure and torque con-

verter oil pressure when the display alteration key is

held down.

Also displays error messages when the AML or any of

its associated devices fail(s).

3. Scroll-up key

Used to see the previous lines of message displayed on

the moment display.

4. Scroll-down key

Used to see the next lines of messages displayed on the

moment display.

AML (Overload Prevention Device) AML (Overload Prevention Device)

31

Display Panel 1

T23985

°

％ 

t

°

m

max t

m

m

17

20

21

16

18

17

10 9

31 2

13

19 11

14

15

7

8

5

6

T038300E

1. Jib angle display

When jib lift is selected, the jib angle offset is displayed.

When the number of part-lines of rope select key is

pressed, or the display select key is kept being pressed,

the number of part-lines of ropes is displayed. Also,

when the upper boom angle restriction function is acti-

vated, the registered upper boom angle limit value is

displayed as long as the register key is kept being

pressed.

2.

Number of part-lines of indicative symbol

This symbol shows that the jib angle display (1) indi-

cates the number of part-lines of rope

3. Boom length indicative symbol

This symbol, while marked up, means the value in the

boom length display [13] is a boom length value.

Jib angle indicative symbol

5.
Comes on to indicate that the value shown in the jib an-

gle display

represents the offset angle.

[1]

6. Jib lift indicative symbol

Comes on when the jib lift is selected to represent the

registered jib status.

7. Real load display

Displays the real load.

8. Rated lifting capacity display

Displays the rated lifting capacity.

9. Load radius limit restriction indicative symbol

Comes on to indicate that the value shown in the load

radius display [11] represents the load radius limit. Note

that the load radius indicative symbol [10] is also dis-

played at the same time.

10. Load radius indicative symbol

Indicates that the value shown in the load radius display

[11] represents the load radius.

11. Load radius display

Normally displays the crane's load radius.

When the load radius limit restriction function is activat-

ed, the load radius limit restriction value is displayed

while the register key is held down.

13. Boom length display

Usually displays boom length.

Displays the lifting height while the display alteration key

is pressed.

When the lifting height restriction function is effective,

this displays lifting height restriction value, while the reg-

ister key is being pressed.

14. Lifting height indicative symbol

This symbol, while marked up, means the value in the

boom length display [13] is a lifting height.

AML (Overload Prevention Device) AML (Overload Prevention Device)

32

15. Lifting height restriction symbol

This symbol, while marked up, means the value in the

boom length display [13] is a lifting height restriction val-

ue.

The lifting height symbol [14] is marked up simultane-

ously.

16. Upper boom angle limit restriction symbol

Indicates that the jib angle display [1] displays the regis-

tered boom angle upper restricted value.

17. Boom angle indicative symbol

Indicates that the boom angle display [19] displays the

boom angle.

18. Lower boom angle limit restriction symbol

Indicates that the boom angle display [19] displays the

registered lower boom angle restricted value.

T038300E

19. Boom angle display

Normally displays the boom angle.

Displays the moment % when the display alteration key

is held down. When the restriction function is activated,

the lower boom angle limit restriction value is displayed

while the register key is held down.

20. Boom lift indicative symbol

Comes on when the boom lift is selected.

21. Single-top lift indicative symbol

Comes on when the single-top lift is selected.

AML (Overload Prevention Device) AML (Overload Prevention Device)

33

Controls

7

6

5

15

18

19

1716

8

10

9

1113 1214

4321

T23214

20

T038300E

1. Increase key

Used to increase the selected value.

2. Decrease key

Used to decrease the selected value.

3. Outrigger mode select key

Used to select the outrigger status.

4. Lift mode select key

Used to select the lift status.

5. Check key

Used to check the AML system functions.

6. Register key

Used to register the selected state.

7. Display alteration key

Used to alternate the displays on display panel 1.

8. Load radius restriction key

Use to activate and cancel the load radius limiting func-

tion.

9. Load radius restriction indicator lamp

Lights up when the load radius limiting function is acti-

vated.

10. Lower boom angle limit restriction key

Used to activate and cancel the lower most boom angle

limiting function.

11. Lower boom angle limit restriction indicator lamp

Lights up when the lowermost boom angle limiting func-

tion is activated.

12. Upper boom angle limit restriction key

Used to activate and cancel the upper most boom angle

limiting function.

13. Upper boom angle limit restriction indicator lamp

Lights up when the uppermost boom angle limiting func-

tion is activated.

14. Lifting height restriction key

Used to activate and cancel the lifting height limiting

function.

15. Lifting height restriction indicator lamp

Lights up when lifting height limiting function is activated.

16. Right swing restriction key

Used to activate and cancel the right swing limiting func-

tion.

17. Right swing restriction indicator lamp

Lights up when the right swing limiting function is acti-

vated.

AML (Overload Prevention Device) AML (Overload Prevention Device)

34

T038300E

T23986

3

2

2

3

3

3

2

4 1

2

18. Left swing restriction key

Used to activate and cancel the left swing limiting func-

tion.

19. Left swing restriction indicator lamp

Lights up when the left swing limiting function is activat-

ed.

Display Panel 2

20. Number of part-lines of rope select key

Used to register a number of part-lines of rope.

1. Front jack symbol

Indicates that the front jack is used.

2. Outrigger state indicative symbol

Displays the way the outriggers are extended.

3. "On-rubber" (Outrigger-not-in-use) state indicative

symbol

Comes on when the starter switch in the crane opera-

tor’s cab is turned “ON”.

5. Boom position indicator

Displays the boom position in 10° increments.

AML (Overload Prevention Device) AML (Overload Prevention Device)

35

T038300E

Selecting Operational Status

WARNING

Should the operational status be incorrectly

registered, the crane might overturn or be dam-

aged, leading to a serious accident. Prior to every

operation, check that the registered status corre-

sponds to the actual status of the crane.

Selecting Outrigger Status

◆The "on-rubber" state indicative symbol is marked up

when the power supply is turned on (the PTO switch in

the carrier driver’s cab is turned ON after the engine is

started). (The outrigger state indicative symbols and

front jack symbol remain off.)

◆Turning the power off (PTO switch: OFF) automatical-

ly erases all the previous settings stored in memory after

approximately 2 hours. To resume the operation more

than 2 hours after the power has been last turned off,

enter the settings all over again.

When the outrigger mode select key is pressed, the out-

rigger state indicative symbols and front jack symbol

flash in accordance with the status that the AML detects

on.

After making sure that the display conforms to the actual

outrigger conditions, press the register key. The outrig-

ger state indicative symbol will change from flashing into

being marked up continuously and the moment display,

rated lifting capacity display and real load display will re-

turn to normal display conditions, meaning that the state

has been registered.

Actual outrigger status

Representation of outrigger

status on the AML

Register the outrigger status using the outrigger mode

select key and register key.

m

Front jack mode
indicative symbol

Outrigger state
indicative symbol

m

t

％ 

max t

m

Register key

Outrigger mode select key

T24099E

T24151E

Fully extended (6.8m)

Mid. extended (4.6m)

Min. extended (2.39m)

T24153E

◆If an outrigger or the front jack is stowed after registra-

tion of outrigger status, the registered status is erased.

In this case, register the outrigger status again before

starting crane operation.

AML (Overload Prevention Device) AML (Overload Prevention Device)

36

T038300E

t

max t

m

m

T24154E

Number of part-lines of rope

Number of part-lines of rope indicative symbol

Increase key

Decrease key

Number of part-lines of rope select key

Register key

Selecting Number of Part-lines of Rope

[NOTICE]

◆If the registered number of part-lines of rope is

smaller than the standard number, a maximum al-

lowable lifting load is limited, depending on the

registered number. In case the number is registered

as ‘0’, however, a process takes place as if the stan-

dard number were registered.

◆Similarly, a process takes place on the basis of

the standard number of part-lines of rope if the reg-

istered number is larger than the standard number

or other than the values specified for your model.

◆When the power supply is turned on (i.e. PTO switch

ON), the standard number of part-lines of rope corre-

sponding to a work condition is selected.

Register the number of part-lines of rope by use of the

number of part-lines of rope select key, as follows:

1. Press the number of part-lines of rope select key.

The number of part-lines of rope symbol will flash, and

the number of part-lines of rope will be shown on the jib

angle display in a flashing mode.

3. Once the intended number of part-lines of rope is

set, press the register key and register the number.

Then, the number of part-lines of rope symbol is turned

off and the jib angle display returns to a normal status.

◆The number of part-lines of rope can be confirmed by

2. Press the increase or the decrease key to set the

number of part-lines of rope at a desired value.

◆When the increase or the decrease key is pressed, a

pressing the display alteration key.

numeral showing the number of rope changes from

flashing to being marked up, showing a fixed value for

the increase or decrease.

◆When the increase or the decrease key is kept

pressed, the number of rope continuously increases or

decreases.

AML (Overload Prevention Device) AML (Overload Prevention Device)

38

T038300E

AML Pre-operational Inspection

WARNING

Operating the crane with a malfunctioning

AML could cause the crane to overturn or be dam-

aged. Be sure to perform the pre-operational

inspection on the AML system and start the crane

only after ensuring that the system is operating

properly.

Before starting operation, check that the AML works in

good condition, as follows:

1. Press the check key and make sure that the AML is

in the following conditions:

• Moment display...............All segments are marked up.

• Display panel (1 and 2)...All segments are marked up.

• Working range restriction indicator lamp

........................................All six lamps light up.

• Alarm buzzer...................Sounds continuously.

• Movement toward critical sides

........................................Automatically halted

2. Press either the set key, display alteration key or

check key to return the display to the normal condition.

3. Make sure that the display on the display panels con-

forms to the actual crane conditions.

(1) Boom length

(2) Boom angle

(3) Jib angle......shown while jib lift is selected

(4) Real load.....Make sure that the approximate mass of

the hook block while no load is on the

hook block.

◆The real load is not shown correctly if the lift status

is not registered correctly.

(5) Outrigger state indicative symbol

(6) Front jack symbol

(7) Boom position indicator

◆If the AML does not work properly, have it checked

and repaired by the nearest TADANO distributor or deal-

er.

3

1

Buzz

Bargraph display

Display panel 1

m

m

t

%

max t

m

Display panel 2

Check key

7

6
5

m

t

°

max t

m

2

4

T24103

T24045E

AML (Overload Prevention Device) AML (Overload Prevention Device)

39

T038300E

T24155E

R

Load radius restricted

H

Lifting height restricted

θu

θL

Upper boom angle restricted
Lower boom angle restricted

Swing restricted

How to Use the Working Range Limit

Function

[NOTICE]

◆If the selected working range limits allow the

crane to approach too close to an obstruction, the

crane may be contacted or hit, depending on the op-

erational status and the manner in which the load is

handled. When selecting limits, allow sufficient

clearance.

The working range restricting function makes the boom

automatically stop at the previously registered boom an-

gles (upper and lower), lifting height and radius.

If makes the alarm sound when the boom reaches the

previously registered swing restriction.

The function is useful for handing a load in a confined

place because it defines the area in which the boom can

operate.

◆Turning the power off (PTO switch: OFF) automatical-

ly erases all the previous settings stored in memory after

approximately 2 hours. To resume the operation more

than 2 hours after the power has been last turned off,

enter the settings all over again.

Boom Angle Limit

Raise or lower the boom to the desired angle, and press

the boom upper or lower limit restriction key. The corre-

sponding limit restriction indicator lamp will flash and the

buzzer will sound continuously, indicating that the limit

boom angle has been registered in the memory. When

the boom is moved back to an angle within the set limit,

the limit restriction indicator lamp stops flashing and

stays illuminated and the buzzer stops.

Thereafter, the upper or lower boom angle limit restric-

tion indicator lamp flashes and the buzzer sounds

continuously whenever the upper or lower limit previous-

ly registered is reached.

To cancel the boom angle limit function, press the boom

angle limit restriction key again. The corresponding

boom angle limit restriction indicator lamp will go off.

Upper boom angle
limit restriction indicator

m

t

max t

m

lamp

Lower boom angle
limit restriction indicator
lamp

Lower boom angle
limit restriction key

Upper boom angle
limit restriction key

T24156E

AML (Overload Prevention Device) AML (Overload Prevention Device)

40

T038300E

t

max t

m

m

T24157E

Lifting height restriction
indicator lamp

Lifting height restriction
key

t

max t

m

m

T24158E

Left swing restriction
indicator lamp

Right swing restriction
indicator lamp

Left swing restriction
key

Right swing restriction
key

Lifting Height Limit

Move the boom to the desired height, and press the lift-

ing height restriction key. The lifting height restriction

indicator lamp will flash and the buzzer will sound con-

tinuously, indicating that the limit height has been

registered in the memory. When the boom is moved

back to a height within the set limit, the lifting height re-

striction indicator lamp stops flashing and stays

illuminated and the buzzer stops.

Thereafter, the lifting height restriction indicator lamp

flashes and the buzzer sounds continuously whenever

the height limit previously registered is reached.

To cancel the height limit function, press the lifting

height restriction key again. The corresponding lifting

height restriction indicator lamp will go off.

Swing Limit

Swing the boom to the desired position, and press a

swing restriction key. The corresponding swing restric-

tion indicator will flash and the buzzer will sound

continuously, indicating that the swing angle limit has

been registered in the memory. When the boom is swing

back to an angle within the set limit, the swing restriction

lamp stops flashing and stays illuminated and the buzzer

stops. Thereafter, a swing restriction indicator lamp

flashes, the swinging boom stops automatically, and the

buzzer sounds whenever the limit previously registered

is reached. To cancel the swing limit function, press the

corresponding swing restriction key again. The corre-

sponding swing restriction indicator lamp will go out.

◆ When registering the swing angle limit, register both

the right and left boom swinging restriction positions.

Registering only one side cannot fulfill this working

range limit function nor make the alarm buzzer sound.

◆ In case that the swing stop override switch is set to

"OFF," the swinging boom will not stop automatically

even when the limit previously registered is reached. Be

very careful in performing swing operation as only the

swing restriction indicator lamp flashes, a message is

displayed, and the AML buzzer beeps for three seconds.

AML (Overload Prevention Device) AML (Overload Prevention Device)

41

Load Radius Limit

t

max t

m

m

T24159E

Load radius restriction
indicator lamp

Load radius
restriction key

Move the boom to the desired load radius, and press the

load radius restriction key. The load radius restriction in-

dicator lamp will flash and the buzzer will sound

continuously, indicating that the limit load radius has

been registered in the memory. When the boom is

moved back toward the non-critical side, the load radius

restriction indicator lamp stops flashing and stays illumi-

nated and the buzzer stops.

The load radius restriction indicator lamp flashes and the

buzzer sounds continuously whenever the limit previous-

ly registered is reached.

To cancel the load radius limit function, press the load

radius restriction key again. The corresponding load ra-

dius restriction indicator lamp will go off.

T038300E

AML (Overload Prevention Device) AML (Overload Prevention Device)

42

Display of Working Range Restriction

t

max t

m

m

Working range

T24101E

Upper boom angle limit

restriction values

Lifting height restriction values

Lower boom angle limit
restriction values

Load radius restriction values

Register key

Boom position indicator

Swing limit restriction values

Values

Press in the register key while working range restricting

functions are registered.

While the key is being pressed in, the registered working

range restriction values are displayed. On the moment

display will be displayed a message “Working range”.

◆This display is not available when preoperational AML

check is made and when working state is registered.

◆When working range restricting functions are not reg-

istered, the message “

---

” will be displayed.

T038300E

AML (Overload Prevention Device) AML (Overload Prevention Device)

43

Display Alteration

T22456E

M

＊＊＊.＊

     MPa

Main circuit pressure

Unit

Displays on the moment display and the display panel 1

can be altered, as shown below in the figures, while the

display alteration key is being pushed. The indicative

symbols are displayed, too.

Moment Display

T038300E

Display Panel 1

◆Displays on the real load display and the rated lifting

capacity display do not alter even when the display al-

teration key is pressed in.

Number of part-lines of rope

M

＊＊＊.＊

Lifting height

m

     MPa

Moment ratio

Real load

％ 

Rated lifting capacity

Swing angle

Display alteration key

T24090E

AML (Overload Prevention Device) AML (Overload Prevention Device)

44

Recovery from a Stop

Set the load on the ground.

Retract the boom slowly.

Raise the boom slowly.

Buzz

T23992E

Warning:0023
or
Warning:0088

Restore the crane operation according to the following

steps.

(1) When moment is more than 100 %

• Moment display: [Warning:0023]

• Buzzer sounds continuously.

(2) When the limit moment for the boom lift with the jib

mounted is exceeded

• Moment display: [Warning:0088]

• Buzzer sounds continuously.

T038300E

AML (Overload Prevention Device) AML (Overload Prevention Device)

45

(3) Two-blocking

Hoist down the winch.

Retract the boom slowly.

T23993E

Buzz

Warning:0024

T24100E

Warning:0025

Lower the boom slowly.

Extend the boom slowly.

• Moment display: [Warning:0024]

• Buzzer sounds intermittently.

T038300E

(4) When rearward stability control function works

• Moment display: [Warning:0025]

AML (Overload Prevention Device) AML (Overload Prevention Device)

46

T038300E

Buzz Buzz Buzz Buzz

Warning: 0026 Warning: 0027 Warning: 0028 Warning: 0029

T24102E

Retract the boom slowly. Cancel working range

restriction function.

Lower the boom slowly. Raise the boom slowly.

Buzz

or
Warning: 0043

Warning: 0042

Swing back the boom.

(5)When upper boom

angle restriction
function works:

• Moment display:
[Warning:0026] is
shown.

• Buzzer: Continuous

• Upper boom angle

restriction indicator
lamp flashes.

(6)When lower boom

angle restriction
function works:

• Moment display:
[Warning:0027] is
shown.

• Buzzer: Continuous

• Lower boom angle

restriction indicator
lamp flashes.

(7)When lifting height

restriction function
works:

• Moment display:
[Warning:0028] is
shown.

• Buzzer: Continuous

• Lifting height restric-

tion indicator lamp
flashes.

(8)When load radius

restriction function
works:

• Moment display:
[Warning:0029] is
shown.

• Buzzer: Continuous

• Load radius restric-

tion indicator lamp
flashes.

(9)When swing angle

restriction function
works:

• Moment display:
[Warning:0042 or
0043] is shown.

• Buzzer: Continuous

• Swing restriction in-

dicator lamp flashes.

AML (Overload Prevention Device) AML (Overload Prevention Device)

47

T038300E

T22722E

Displays a failure message

Display and Disposition of Failure

Messages

When failure messages are shown on the AML moment

display, the AML buzzer sounds for 3 seconds. Stop

working and take appropriate action.

Messages Meanings Causes Solutions

[Warning:0001] R.F. outrigger retracts Outrigger beam retracts and Re-extend outrigger.

[Warning:0002] R.R. outrigger retracts extended width decreases.

[Warning:0003] L.F. outrigger retracts

[Warning:0004] L.R. outrigger retracts

[Warning:0010] Approaching to the swing The boom is swung close to the Swing in the opposite direction.

limit registered swing limit. Cancel the swing limit function.

(This message appears while the

swing limit is registered and the

swing stop override switch is set

to OFF.)

[Warning:0015] Overwinding (with overwind Main (or auxiliary) winch is Hoist down the main

cutout function deactivated) wound excessively. (or auxiliary) winch.

[Warning:0024] Stops by overwinding

[Error:0016] Operational status not Wrong registration of operational Register operational status again.

applied <case 1> status (boom lift, jib lift, single top

[Error:0017] Operational status not lift, outrigger)

applied <case 2>

[Error:0018] Wrong telescoping order Boom telescoping order is out of Return the telescoping order to the

[Error:0019] the normal condition after normal one.

[Error:0020] emergency telescoping, etc. If the message is output while the

[Error:0021] telescoping order is normal, check

or repair is required. Contact near-

est TADANO distributor or dealer.

[Warning:0023] Stops at moment ratio 100% Moment ratio beyond 100 % Hoist down winch.

Raise boom angle. Retract boom.

[Warning: 0025] Stops by upper boom angle Automatic stop to prevent jib from Lower the boom.

restriction contacting jib or wire ropes by Extend the boom.

boom raising or boom retraction

[Warning:0026] Upper boom angle Boom is raised above the Lower the boom.

restricted upper boom angle restriction. Cancel upper boom angle

restriction.

AML (Overload Prevention Device) AML (Overload Prevention Device)

48

T038300E

Messages Meanings Causes Solutions

[Warning:0027] Lower boom angle Boom is lowered below the lower Raise the boom.

restricted boom angle restriction. Cancel lower boom angle

restriction.

[Warning:0028] Lifting height restricted Lifting height is beyond lifting Lower the boom.

height restriction. Retract the boom.

Cancel lifting height restriction.

[Warning:0029] Load radius restricted Load radius is beyond Raise the boom.

load radius restriction. Retract the boom.

Cancel load radius restriction.

[Warning:0042] Right swing angle restricted Boom is swung beyond the swing Swing back the boom.

[Warning:0043] Left swing angle restricted restriction. Cancel the swing restriction function.

[Warning:0046] Unexpected outrigger Outrigger is retracted. Register operational status again.

retraction

[Warning:0057] R.F. outrigger state change Outrigger state change as to Re-extend outrigger.

[Warning:0058] R.R. outrigger state change decrease extension. Register operational status again.

[Warning:0059] L.F. outrigger state change Crane performance shifted to that

[Warning:0060] L.R. outrigger state change with smaller outrigger extension.

[Error:0006] Pins inserted in jib Jib connecting pin and jib set pin Set the pins on the jib to normal

inserted. conditions.

[Warning:0011] Connecting pin uninserted Jib connecting pin is not inserted.

[Warning:0077] Front jack moved Front jack is operated. Extend the front jack again and re-

register the front jack status.

[Warning:0081] Elevation slowed down Elevation slow stop function is Stop operation.

activated and the elevation

Elevate the boom to the opposite direction.

speed is reduced because the Cancel the boom angle restriction.

limit angle is approaching due to Move the boom toward non-critical

boom elevation. side.

[Warning:0082] Swinging slowed down Swing slow stop function is Stop operation.

activated and the swing speed is Swing back the boom.

reduced because the limit angle is Retract the boom.

approaching due to boom swing. Raise the boom.

Cancel the swing restriction func-

tion.

[Warning:0085] Stroke end of elevation Boom elevation is automatically Stop operation.

cylinder stopped as it reaches the stroke Operate in the opposite direction.

end.

[Warning:0088] Moment exceeding limit During lifting a load on the boom Hoist down the winch.

for boom with jib mounted with the jib moment ratio beyond Raise the boom.

85%. Retract the boom.

AML main body or detector Check or repair required. Contact

Others

─

defective nearest TADANO distributor or

dealer. For crane stowing, see

“Disposition of System Troubles”.

AML (Overload Prevention Device) AML (Overload Prevention Device)

49

T038300E

T24161E

ON

OFF

Emergency outrigger
control switch

Emergency outrigger
control indicator lamp

Disposition of System Troubles

How to Use AML Override Switch and
Override Key Switch

WARNING

Keeping the AML override switch set to ON and

the override key switch set to ON cancels the

AML's safety feature, the stop function. Using

these switches during normal operation is ex-

tremely dangerous. Do not use these switches

during normal operation. Use the switches only

when operation has been disabled due to failure

of the AML system. Be sure to set the load on the

ground and retract the boom before using the

switch. Use the elevating and/or swing functions

to stow the boom.

If restoring operations after a failure message appears

does not normalize crane operations, the AML is in trou-

ble. When the system is out of order, crane operation

becomes impossible.

The AML override switch and override key switch are

only intended for use to stow the boom. Insert the key

into the key hole and turn the switch to ON. The crane

operation is available and the AML cancellation warning

lamp lights up while the AML override switch is kept in

the ON position in this condition.

◆The key should be kept by a person who takes care of

the crane, or a person responsible for job-site works.

How to Use Emergency Outrigger Control
Switch

WARNING

Use the emergency outrigger control switch

only when the crane is in an emergency. After the

operation, contact your nearest TADANO distribu-

tor or dealer to repair the outrigger detection

device.

When the outrigger extension detection device, such as

a code reel, breaks down, the registered outrigger state

in the AML is cancelled to make the crane inoperable. In

this emergency, use the emergency outrigger control

switch to register the outrigger state into AML, and the

indicator lamp will light up.

1. Set the emergency outrigger control switch to ON.

The emergency outrigger control indicator lamp will light

up and the outrigger state on the AML will be set to the

default status.

AML

AML (Overload Prevention Device) AML (Overload Prevention Device)

AML override switch

OFF

Override key switch

ON

AML

OFF

ON

AML

T24160E

50

2. Press the outrigger mode select key in conformity

(6) Outriggers fully extended
  Front jack extended

(3) Outriggers fully extended
  Front jack not used

(5) Outriggers extended halfway
  Front jack extended

(2) Outriggers extended halfway
  Front jack not used

(4) Outriggers not extended
  Front jack extended

(1) Outriggers not extended
  Front jack not used

T30139E

with the actual outrigger extension width.

◆Each time the outrigger mode select key is pressed,

the status changes in numerical sequence, from (1) to

(6), as shown below. The display returns to (1) if you

press the switch when status (6) is displayed on the

screen.

T038300E

◆When the front, rear, right and left outrigger extension

widths differ, select the smaller width.

◆The outrigger state indicative symbol is switched with

flashing.

3. After selecting the intended outrigger status and

front jack status, press the register key to register the

status. The outrigger state indicative symbol will stop

flashing and become marked up.

4. Register the lift status.

◆See “Selecting Lift Status” section.

m

Front jack mode
indicative symbol

Outrigger state
indicative symbol

m

％ 

m

Outrigger mode select key

t

max t

Register key

T24099E

AML (Overload Prevention Device) AML (Overload Prevention Device)

51

Other Safety Devices

Boom Jib Single top

Overwind detection switch

T02366E

T038310E

Overwind Cutout Device

The overwind cutout device prevents damage to the

crane that would be caused by pulling the hook block

into the boom head. When the hook block approaches

the boom head, single top or jib, the overwind cutout

device detects it and sends a signal to the AML, which

then stops any further crane action toward the critical

condition.

When overwinding is detected, the crane will be set in

the following status:

(1) Any operation involving action toward the critical

state (hoisting up, extending or lowering the boom) is

halted.

(2) If a critical-state operation is attempted, the alarm

buzzer sounds to alert the operator.

When the crane is automatically stopped because the

overwind cutout device has been activated, retract the

boom or hoist down to move the hook block away from

the boom head, single top or jib.

◆The overwind cutout device for the jib can also be

used for the single top.

◆When the jib or single top is mounted, be sure to

connect the leads of the overwind cutout device

correctly. If the leads are not connected, the AML

assumes an overwind condition, and all actions toward

the critical condition are automatically stopped.

◆Once overwinding has occurred, alarm buzzer keeps

sounding till the hook block is lowered.

Deactivation of Overwind Cutout Function

WARNING

When the overwind cutout function is deacti-

vated, the automatic stop function will not operate

even if the hook block is overwound. Be careful

not to overwind when deactivating the overwind

cutout function is unavoidable or specifically re-

quired.

Use the overwind cutout release switch to deactivate the

overwind cutout function. The overwind cutout function

may hinder stowing the main hook block and mounting

or stowing the jib. To prevent this, you can temporarily

deactivate the function by keeping the overwind cutout

release switch pressing.

◆Overwind cutout function is deactivated while the jib

set status is registered on the AML.

OFF

ON

AML

Overwind cutout release switch

T24087E

Other Safety Devices Other Safety Devices

52

T038310E

Front Jack Overload Warning Device

WARNING

The horn sounds during an operation with the

front jack extended to signal that there is an

overload on the front jack. Move the boom until

the horn stops.

The purpose of the front jack overload warning device is

to prevent damage to the carrier's chassis frame by an

excessive load during an operation with the front jack

extended. When a load exceeding the limit is placed on

the front jack, the horn sounds, warning the operator of

an overload.

◆On certain surface, the horn may sound even if the

load is within the limit. For example, when the ground

supporting the front outriggers is soft, the load on the

front jack may increase, causing the horn to sound. In

such a case, check the ground support conditions of the

outriggers and front jack.

External Warning Lamps (Option)

WARNING

When the external warning lamp in red lights,

crane operation to the critical side stops. Do not

cancel AML stop function to continue crane oper-

ation. Operate the crane toward safety side and

then the work after lamp lighting has changed

from red to orange, or lamp has gone off.

The external warning lamps are to inform the people en-

gaged in work around the crane of AML conditions.

While any of the following functions are deactivated, the

red lamp lights up in addition to inform the people en-

gaged in work that an automatic stop function is

deactivated.

(1) Overwind cutout function

(2) Swing stop function

(3) Automatic stop by the AML (caused by the moment

exceeding 100%, working range limit, etc.)

T00143

Red Orange

T23175E

Color Crane (or AML) conditions

Not lighted Safe

Orange Not in danger, but attention needed

• Moment ratio is within the range in

which alarm function is activated.

Red (1) In danger (Motion to critical side stops)

• Moment ratio exceeds the limit at which

automatic stop function is activated.

(2) Automatic stop function cancelled

• Swing stop function is shifted to “OFF”.

• Overwind cutout function is deactivated.

• AML override switch and override key

switch are turned ON.

Other Safety Devices Other Safety Devices

53

Starting and Stopping the

O

F

F

O

N

AML

MIKUNIMIKUNI

MY30

F

U

E

L

L

H

JIB LOCK

AML

50℃ 

85℃ 

ON 

INT

  FREE

T24035EJ

1

OF

F

ON

AML

MIKUNIMIKUNI

MY30

F

U

E

L

L

H

JIB LOCK

AML

50℃ 

85℃ 

ON 

INT

  FREE

4

D E F

MODE

C

OOL

H

O

T

O N
O F F

A

/

C

R

/

F

O

N

O

N

ON

INT

3B

〜 

2B

5

3

2

1

1

T24037

Engine

Control

T038320E

1. Starter switch

Pre-starting Checks

Before starting the engine, perform the following inspec-

tion and checks:

1. Perform the pre-operational inspection.

2. Make sure that the controls in the crane operator's

cab are placed in the following positions:

(1) Main and auxiliary hoist levers, boom telescoping

lever, boom elevating lever and swing lever …Neutral
(2) Swing brake switch ………………………………“ON”
(3) Swing stop override switch………………Activated
(4) Slow elevation stop switch ………………Activated
(5) Emergency outrigger control switch……………“OFF”

Starting and Stopping the Engine Starting and Stopping the Engine

54

T038320E

T24036E

（START)

（ON)

（OFF)

（ACC)

（STOP)

Starting the Engine

[NOTICE]

◆Do not hold the starter switch in the START

position for more than 15 seconds, as this practice

will overheat the starter motor. If the first attempt to

start the engine fails, wait at least 30 seconds before

trying again.

◆The engine can be started from both the carrier dri-

ver's cab and crane operator's cab. Normally, however,

use the starter switch in the carrier driver's cab. Use the

switch in the crane operator's cab only when the engine

stalls during operation.

Starting Engine from Carrier Driver's Cab

◆For a detailed explanation of the engine starting pro-

cedure, see the Crane Carrier Operation and

Maintenance Manual.

1. Place the gearshift in the neutral position and acti-

vate the parking brake.

2. Make sure that the PTO switch is in the OFF posi-

tion.

Starting Engine from Crane Operator's Cab

◆When the engine is cold, use the starter switch in the

carrier driver's cab.

1. Turn the starter switch to the START position to

crank the engine. Release the key immediately once the

engine has started.

◆The starter switch positions and their functions are as

follows:
"START" ・・・・・・Starts the engine. Release the key af-

ter the engine has started. The switch

will automatically return to ON.

"ON" ・・・・・・・・・Supplies current to the electrical

circuits. Keep the key in this position

during crane operation.

"OFF" ・・・・・・・・The key can be inserted and removed

in this position. Keep the key in this

position when the engine is stationary.

"ACC" ・・・・・・・・The power windows, fan, washer,

wiper, horn, and flood lamps can be

used with the engine off.

"STOP" ・・・・・・・Stops the engine. Releasing the key

automatically returns the switch to

“ACC” position.

3. Turn the starter switch to the START position to

crank the engine.

Starting and Stopping the Engine Starting and Stopping the Engine

55

Stopping the Engine

◆The engine can be stopped from both the carrier dri-

ver's cab and crane operator's cab. Normally, however,

use the starter switch in the carrier driver's cab to stop

the engine. Use the switch in the crane operator's cab

only when the engine must be stopped during operation.

Stopping Engine from the Carrier Driver's

Cab

◆For a detailed explanation of how to stop the engine,

see the separate Crane Carrier Operation and

Maintenance Manual.

1. Make sure that the PTO switch is in the OFF posi-

tion.

T038320E

2. Turn the key to the stop position to stop the engine.

Stopping Engine from the Crane Operator's

Cab

1. Turn the starter switch to the STOP position. Turn it

to OFF position immediately after the engine has

stopped.

Starting and Stopping the Engine Starting and Stopping the Engine

56

Operating the PTO and Warming

O

See the separate Crane Carrier Operation

Up the Machine

T023110E

Operating the PTO

"PTO" is an abbreviation for "Power Take Off". The

PTO, by engaging the gears, transmits engine power to

the hydraulic pump.

When the PTO gears are engaged (PTO is ON) after

starting the engine, the hydraulic pump is driven, making

hydraulic pressure available for operating the crane. The

hydraulic pump stops when the PTO is disengaged

(PTO is OFF) and the power from the engine is inter-

rupted.

Engaging the PTO

Engaging the PT

1. Depress the clutch pedal all the way and place the

PTO switch in the ON position. The PTO lamp will light

up.

䂹

The location of the PTO switch depends on the crane

carrier. See the separate Crane Carrier Operation and

Maintenance Manual.

䂹

For a transmission Hi/Lo switch installed Mitsubishi

carrier, tip the switch to H side.

2. Slowly release the clutch pedal and remove your

foot.

Warming Up the Machine

[NOTICE]

◆Be sure to allow your machine to warm up before

the start of every operation. This is especially impor-

tant in cold weather when the engine and hydraulic

oil viscosities are high. If you start an operation

without sufficiently warming up the engine and ma-

chine, highly viscous oils may cause damage to the

engine and hydraulic system.

◆For this machine, the hydraulic oil temperature

should be within the range of 30°C to 60°C. Operate

the crane at low engine speed until the oil tempera-

ture reaches 30°C or higher.

1. Let the engine warm up at idling speed for approxi-

mately five minutes after engaging the PTO. When it is

very cold, extend the warm up time as necessary, ac-

cording to the ambient temperature.

2. Increase the engine speed to between 800 and

1,000 min

proximately five to ten minutes. When it is very cold,

extend the operating time according to the atmospheric

temperature.

-1

and operate the crane without a load for ap-

Disengaging the PTO

1. Depress the clutch pedal all the way and place the

PTO switch in the OFF position. The PTO lamp will go

out.

2. Release the clutch pedal.

3. Start a loaded operation after the machine has

been sufficiently warmed up without a load.

Checks to Make during Warmup

䂹

Check the instruments and monitors in the carrier dri-

ver's cab as instructed in the separate Crane Carrier

Operation and Maintenance Manual.

Check the engine, hydraulic pumps, hydraulic motors,

swing bearing and each pivot pin for any unusual sound.

If any are found, stop operation immediately and contact

your nearest TADANO distributor or dealer to have them

inspect your machine.

Operating the PTO and Warming Up the Machine Operating the PTO and Warming Up the Machine

57

Outriggers

Setting the Crane

WARNING

If the crane is set on inappropriate ground, it is

possible that the crane could overturn. Always set

the crane on firm ground.

The most important factor for safe crane operation is

setting the outriggers on ground firm enough to support

both the mass of the crane and the load to be lifted.

The crane is normally supported by four outriggers dur-

ing operation, but in certain operating positions, a large

part of the crane mass and lifted load mass may end up

being supported by only one outrigger. If this occurs

when the outriggers are set on soft ground, the outrigger

floats may sink into the ground, causing the crane to list

and, in the worst case, overturn.

Some surfaces may appear to be firm, when in fact they

are not hard enough to support the machine. Be espe-

cially careful of the following surfaces:

(1) Asphalt pavement

(2) Sidewalk or other areas with stone pavement

(3) Areas that have been filled in after excavation

(4) Reclaimed land

(5) Areas near the shoulder of a road or the edge of a pit

T038330E

Preparing the Ground

When it is unavoidable to set the crane on soft ground or

on ground that cannot bear the load of the crane plus a

load to be lifted, carry out the following procedures:

(1) Grade a slope or rough surface so that the crane can

be set in a level position.

(2) Place steel plates or wood blocks on the surfaces

where the outrigger floats are to be located, in order

to distribute the bearing pressure over a larger area.

The steel plates and wood blocks must be sufficiently

strong and large in area and also appropriate for the

ground condition. The outrigger floats must be set at

the center of the plates or blocks.

Outriggers Outriggers

58

Controls

EXTENSION

JACK FRONT JACK EXT.

RET.

T30107E

1

2

3

4

56

7

89

10

11

6

7

89

10

11

◆The illustration shows the right side of the crane carri-

er. The lever arrangement on the left side is symmetrical

to this.

T038330E

1. Lock pin

2. Outrigger beam

3. Jack cylinder

4. Outrigger float

5. Bubble level

6. Extend/retract control lever

7. Front jack lever

8. Individual control lever (left front)

9. Individual control lever (right front)

10. Individual control lever (left rear)

11. Individual control lever (right rear)

Outriggers Outriggers

59

T038330E

Extending the Outriggers

WARNING

Outriggers with improperly extended beams

cannot assure safety. Adhere to the rated lifting

capacity table, which specifies the correct beam

length for different lifting capacities. Make it a rule

to fully extend the beams whenever possible even

on a crane which is rated for operation on

outriggers at half extension.

The machine can sometimes remain level even

when it is supported on only three jacks.

Operating the machine in such a condition is very

dangerous. After extending the outriggers, make

sure that all outrigger floats are in contact with

the ground. Any unseated float must be lowered

so that it is in firm contact with the ground.

If the crane is not level on the ground, the load

radius will increase when the load is swung

toward the lower side. In the worst case, this

could cause the crane to overturn. Always use the

bubble levels to make sure that the crane is level

after extending the outriggers.

Operating on outriggers when any tires are in

contact with the ground will reduce machine

stability. Extend jacks and, if necessary, place

blocking under the outrigger floats to raise the

tires clear of the ground.

The outrigger beams may accidentally retract

during operation if they are not properly locked

with the lock pins. Be sure to secure the outrigger

beams with the lock pins whenever they are

extended.

Full Extension Procedure

1. Remove all four lock pins.

T30108

2. Place the two individual control levers of the outrig-

gers on your side to EXTENSION. Then move the

extend/retract control lever toward EXT. to extend the

outrigger beams fully.

◆The figure below shows an outrigger on the left side

of the carrier.

WARNING

When extending four outrigger beams

simultaneously, check the other side of the carrier

well before operation.

RET.

EXTENSION

[NOTICE]

JACKFRONT JACKEXT.

T30109E

◆If an outrigger or the front jack is stowed after

registration of outrigger status, the registered status

is erased. In this case, register the outrigger status

3. Insert the lock pins to lock the extended outrigger

beams.

again before starting crane operation.

Outriggers Outriggers

60

T038330E

4. Go the the other side of the carrier. Place the two

individual control levers of the outriggers on your side to

EXTENSION. Then move the extend/retract control

lever toward EXT. to extend the outrigger beams fully.

◆The figure below shows an outrigger on the right side

of the carrier.

EXTENSION

JACK FRONT JACK EXT.

RET.

T30110E

5. Insert the lock pins to lock the extended outrigger

beams.

8. Use the bubble levels to make sure that the crane is

level. If the crane is not level, refer to the "Level

Adjustment" section for detailed instructions on leveling

the crane.

Bubble

Marking line

T05569E

Middle Extension Procedure

1. Extend the outrigger beams to the mid. extended

mark (4.6 m) in the same procedure as the full extension

procedure.

6. Place all four individual control levers in the JACK

position. Move the extend/retract control lever toward

EXT. to fully extend the jack cylinders.

EXTENSION

JACK FRONT JACK EXT.

RET.

T30111E

7. After all four jack cylinders are fully extended, return

the extend/retract control lever and all the individual con-

trol levers to the neutral position.

Mid. extended mark (4.6m)

T30112E

2. Insert four lock pins into the pin holes to lock the

outrigger beams.

3. Extend all the jack cylinders fully in the same proce-

dure as the full extension procedure.

Outriggers Outriggers

61

T038330E

T30113

Minimum Extension Procedure

1. Retract all four outrigger beams fully and inset four

lock pins into the pin holes to lock the outrigger beams.

2. Extend all the jack cylinders fully in the same proce-

dure as the full extension procedure.

Level Adjustments

Using the Bubble Level

“Setting the vehicle level” refers to the condition that the

vehicle is set so that the bubbles in the spirit level are

between the marking lines.

Check the position of the bubbles in the bubble level. If a

bubble is off-center, it means that the crane is not level,

and the side of the crane in the direction of the bubble is

higher.

—Example—

A bubble in the glass level is off-center and to the right.

= The crane is listing to the left.

Bubble level

Marking line

Bubble

T24430E

Adjustment

The crane should be adjusted to a level position by re-

tracting (extending) the jack cylinders located on the

higher (lower) side of the crane. The following explana-

tion assumes that the right side of the crane is higher

(lower).

1. Place the right front and right rear individual control

levers (levers corresponding to the higher (lower) side)

in the JACK position. Move the extend/retract control

lever toward RET. (EXT.) a little at a time to retract (ex-

tend) the jack cylinders on the right side of the crane.

EXTENSION

JACK FRONT JACK EXT.

Outriggers Outriggers

62

RET.

T30114E

T038330E

EXTENSION

JACK FRONT JACK EXT.

RET.

T00161E

2. If the bubbles in the spirit level is between the

marking lines, the vehicle is set level. Return the ex-

tend/retract control lever and individual control levers to

the neutral position.

Bubble

Marking line

T05569E

3. Make sure that all four outrigger floats are in con-

tact with the ground. Any unseated outrigger floats must

be lowered until they are in firm contact with the ground.

Front Jack

Extension

◆Extend the front jack only after extending and setting

the outriggers to install the crane level.

1. Place the front jack lever in the FRONT JACK posi-

tion. Move the extend/retract control lever toward EXT.

The front jack will start extending.

2. Keep the extend/retract control lever toward EXT.

for approx. 3 seconds after the front jack float has

reached the ground. Then, return the extend/retract con-

trol lever and front jack lever to the neutral position.

Retraction

[NOTICE]

◆Retract the front jack before retracting the outrig-

gers. If the outriggers are retracted without first

retracting the front jack, the carrier chassis frame

will be damaged.

1. Place the front jack lever in the FRONT JACK posi-

tion. Move the extend/retract control lever toward RET.

The front jack will start retracting.

EXTENSION

JACK FRONT JACK EXT.

RET.

T00162E

2. Once the front jack has been completely retracted,

return the extend/retract control lever and front jack

Outriggers Outriggers

lever to their neutral position.

63

T038330E

Stowing the Outriggers

WARNING

If the outriggers are retracted with the boom

extended, the crane may overturn. Fully retract

the boom and stow it on the boom rest before

retracting the outriggers.

Traveling with the crane without first securing

the retracted outriggers with the lock pins is dan-

gerous. The outrigger beams could accidentally

extend during travel. Be sure to securely pin the

outrigger beams whenever they are stowed.

[NOTICE]

◆Retract the front jack before retracting the

outriggers. If the outriggers are retracted the front

jack left extended, the carrier chassis frame will be

damaged.

1. Place all four individual control levers in the JACK

position. Move the extend/retract control lever toward

RET. and fully retract the jack cylinders.

3. Place the two individual control levers of the outrig-

gers on your side to EXTENSION. Then move the

extend/retract control lever toward RET. to retract the

outrigger beams fully.

◆The figure below shows an outrigger on the left side

of the carrier.

RET.

EXTENSION

JACKFRONT JACKEXT.

T30117E

4. Go the the other side of the carrier. Place the two

individual control levers of the outriggers on your side to

EXTENSION. Then move the extend/retract control

lever toward RET. to retract the outrigger beams fully.

◆The figure below shows an outrigger on the right side

of the carrier.

EXTENSION

JACK FRONT JACK EXT.

RET.

2. Remove all four lock pins.

T30115E

T30116

EXTENSION

JACK FRONT JACK EXT.

RET.

T30118E

5. After all four outrigger beams are fully retracted, re-

turn the extend/retract control lever and all the individual

control levers to the neutral position.

Outriggers Outriggers

64