Tadano GR-300EX Service Manual

GR-300EX

(Left-hand drive)

30 Ton Capacity

SPEC. SHEET NO. GR-300E-3-00102/EX-05

HYDRAULIC ROUGH TERRAIN CRANE

DIMENSIONS

2,200

5,000

5,900

6,300

2,140

2,620

3,535

GENERAL DIMENSIONS

5,725

15.3˚

3,330

9,700–31,000

2,460

3,030 3,350

11,245

7,300

3,500

1,750

2,020

Note : Dimension is with boom angle at 0 degree.

370

12.6˚

3,480

Turning radius (445/95R25 Tires)

4 wheel steer
2 wheel steer

5.8 m

9.8 m

Overall length
Overall width
Overall height

Specications are subject to change without notice.

approx. 11,245 mm
approx. 2,620 mm
approx. 3,535 mm

CRANE SPECIFICATIONS

SPEC. SHEET NO. GR-300E-3-00102/EX-05

BOOM

4 section full power partially synchronized telescoping boom of
round hexagonal box construction with 3 sheaves at boom head.
The synchronization system consists of 2 telescope cylinders,
an extension cable and retraction cable. Hydraulic cylinder tted
with holding valve. 2 easily removable wire rope guards, rope
dead end provided on both sides of boom head. Boom telescope
sections are supported by wear pads both vertically and
horizontally.

Fully retracted length....... 9.7 m

Fully extended length ...... 31.0 m

Extension speed.............. 21.3 m in 91 s

Root diameter.................. 0.336 m

BOOM ELEVATION
By a double acting hydraulic cylinder with holding valve.
Combination controls for hand or foot operation. Boom angle
indicator.
Automatic speed reduction and slow stop function.

Boom angle ..................... 0˚– 81˚

Boom raising speed ........ 20˚ to 60˚ in 22 s

JIB

2 stage swing around boom extention swing around type with
triple offset (tilt type). Single sheave at jib head.
Box type top section telescopes from lattice type base section
which stows alongside base boom section.

Length ............................. 7.2 m , 12.8 m

Offset............................... 5˚, 25˚, 45˚

Root diameter.................. 0.352 m

AUXILIARY LIFTING SHEAVE (SINGLE TOP)

Single sheave mounted to main boom head for single line
work(stowable).

Root diameter.................. 0.336 m

ANTI-TWO-BLOCK DEVICE

Pendant type over-winding cut out device with
audio-visual (FAILURE lamp/BUZZER) warning system.

SLEWING

Hydraulic axial piston motor driven through planetary slewing
speed reducer. Continuous 360˚ full circle slewing on ball
bearing.
Equipped with manually locked/released slewing brake.
A positive slewing lock for pick and carry and travel modes,
manually engaged in cab. Twin slewing system : Free slewing or
lock slewing controlled by selector switch on front console.

Slewing speed................. 3.2 min

WINCH

MAIN WINCH
Variable speed type with grooved drum driven by hydraulic axial
piston motor through speed reducer. Power load lowering and
raising.
Equipped with automatic brake (neutral brake) and
counterbalance valve. Controlled independently of auxiliary winch.
Equipped with cable follower and drum rotation indicator.

MAIN DRUM

Root diameter x wide ...................................... 0.32 m x 0.484 m

Wire rope diameter x length ............................... 16 mm x 170 m

Drum capacity ................................................. 219.5 m, 6 layers

Maximum single line pull (1st layer)................ 56.0 kN (5,710 kgf)

Maximum permissible linepull wire strength

AUXILIARY WINCH
Variable speed type with grooved drum driven by hydraulic axial
piston motor through speed reducer. Power load lowering and
raising.
Equipped with automatic brake (neutral brake) and
counterbalance valve. Controlled independently of main winch.
Equipped with cable follower and drum rotation indicator.

-1

{rpm}

...... 49.3 kN (5,030 kgf)

AUXILIARY DRUM

Root diameter x wide ....................................... 0.32 m x 0.263 m

Wire rope diameter x length .................................. 16 mm x 98 m

Drum capacity ................................................. 119.4 m, 6 layers

Maximum single line pull (1st layer).................56.0 kN (5,710 kgf)

Maximum permissible linepull wire strength

WIRE ROPE
Filler or warrington seal wire (spin-resistant), extra improved plow
steel, preformed, independent wire rope core, right regular lay.
Main……………………….. 16 mm 6 x 29 class
Auxiliary…………………… 16 mm 6 x 36 class

HOOK BLOCKS
30 ton
4 sheaves with swivel hook and safety latch

4.0 ton
Weighted hook with swivel and safety latch

HYDRAULIC SYSTEM

PUMPS
2 variable piston pumps for crane functions.
Tandem gear pump for steering, slewing and optional equipment.
Powered by carrier engine. Pump disconnect for crane is
engaged/disengaged by rotary switch from operator's cab.

CONTROL VALVES
Multiple valves actuated by pilot pressure with integral pressure
relief valves.

RESERVOIR
380 liters capacity. External sight level gauge.

FILTRATION
BETA10=10 return lter, full ow with bypass protection, located
inside of hydraulic reservoir. Accessible for easy replacement.

OIL COOLER - Air cooled fan type.

CAB AND CONTROLS

Both crane and drive operations can be performed from one
cab mounted on rotating superstructure.

Left side, 1 man type, steel construction with sliding door
access and safety glass windows opening at side. Door
window is powered control. Windshield glass window and roof
glass window are shatter-resistant. Wiper and washer (front
indshield and roof window). Tinted safety glass and sun visor.
Tilt-telescoping steering wheel. Adjustable control lever stands for
slewing, boom elevating, boom telescoping, auxiliary winch and
main winch. Control lever stands can change neutral positions
and tilt for easy access to cab. Foot operated controls: boom
elevating, boom telescoping, service brake and engine throttle. 3
way adjustable operator's seat with high back, headrest and
armrest. Cab oor mat. Engine throttle knob. Hot water cab heater
and air conditioning.

Dash-mounted engine start/stop, monitor lamps, cigarette
lighter, drive selector switch, parking brake switch, steering
mode select switch, power window switch, pump engaged/
disengaged switch, slewing brake switch, boom
telescoping/auxiliary winch select switch, outrigger control panel,
and slewing free/ lock selector switch.

Instruments - Torque converter oil temperature, engine water
temperature, air pressure, fuel, speedometer, tachometer,
hour meter and odometer / tripmeter. Engin over-run alarm.
Back-up alarm. Low oil pressure/high water temp. Warning device
(visual). Rear steer centering light. Hydraulic oil pressure is
monitored and displayed on the AML-C display panel.

........58.2 kN (5,940 kgf)

-2-

CRANE SPECIFICATIONS

SPEC. SHEET NO. GR-300E-3-00102/EX-05

TADANO Automatic Moment Limiter
(AML-C) including:

• Control lever lockout function with audible and visual
pre-warning

• Number of parts of line

• Boom position indicator

• Outrigger state indicator

• Slewing angle

• Boom angle / boom length / jib offset angle / jib length / load
radius / rated lifting capacities / actual loads read out

• Potential lifting height

• Ratio of actual load moment to rated load moment indication

• Permissible load

• Automatic Speed Reduction and Slow Stop function on
boom elevation and slewing

• Working condition register switch

• Load radius / boom angle / tip height / slewing range preset
function

• External warning lamp

• Tare function

CARRIER SPECIFICATIONS

TYPE

Rear engine, left-hand drive, driving axle 2-way selected type
by manual switch, 4x2 front drive, 4x4 front and rear drive.

FRAME

High tensile steel, all welded mono-box construction.

ENGINE

Model
Type
No. of cylinders
Combustion
Bore x Stroke, mm
Displacement, liters
Air inlet heater
Air cleaner
Oil lter
Fuel lter
Fuel tank, liters
Cooling
Radiator
Fan, mm
Starting
Charging
Battery
Compressor, air, l /min
Output, Max. kW (HP)
Torque, Max. N
Capacity, liters

Cooling water
Lubrication
Fuel

TRANSMISSION

Electronically controlled full automatic transmission.
Torque converter driving full powershift with driving axle selector.
6 forward and 2 reverse speeds, constant mesh.

4 speeds - high range - 2-wheel drive; 4-wheel drive
4 speeds - low range - 4-wheel drive

•

m

Cummins QSB6.7 [EU) Stage
Direct injection diesel
6
4 cycle, turbo charged and after cooled
107 x 124

6.700
24 volt preheat
Dry type, replaceable element
Full ow with replaceable element
Full ow with replaceable element
300, right side of carrier
Liquid pressurized, recirculating by-pass
Fin and tube core, thermostat controlled
Suction type, 6-blade, 711 dia.
24 volt
24 volt system, negative ground
2-120 amp. Hour
430 at 2,500 min
Gross 160 (220) at 2,500 min
843 at 1,600 min

10
15
300

-1

-1

III

A]

-1

• Main hydraulic oil pressure

• Fuel consumption monitor

• Main winch / auxiliarly winch select

• Drum rotation indicator (audible and visible type) main and
auxiliary winch

• On-rubber indicator

TADANO AML-C monitors outrigger extended length and
automatically programs the corresponding "RATED LIFTING
CAPACITIES" table

Operator's right hand console includes transmission gear selector,
slewing lock lever and sight level bubble.
Upper right console includes ood lamp switch, roof washer and
wiper switch, emergency outrigger set up key switch, jib status
switch, eco mode switch, and air conditioning control switch.
Lower right console includes boom emergency telescoping switch
(2nd and 3rd-top)

NOTE: Each crane motion speed is based on unladen conditions.

AXLE

Front: Full oating type, steering and driving axle with planetary
reduction.
Rear: Full oating type, steering and driving axle with planetary
reduction and non-spin rear differential.

STEERING

Hydraulic power steering controlled by steering wheel.
3 steering modes available: 2 wheel front, 4 wheel coordinated
and 4 wheel crab.

SUSPENSION

Front: Semi-elliptic leaf springs with hydraulic lockout device.
Rear: Semi-elliptic leaf springs with hydraulic lockout device.

BRAKE SYSTEMS

Service: Air over hydraulic disc brakes on all 4 wheels.
Parking/Emergency: Spring applied-air released brake acting
on input shaft of front axle.
Auxiliary: Electro-pneumatic operated exhaust brake.

TIRES - 445/95R25 (OR) Air pressure: 900 kPa

OUTRIGGERS

4 hydraulic, beam and jack outriggers.
Vertical jack cylinders equipped with integral holding valve.
Each outrigger beam and jack is controlled independently from cab.
Beams extend to 6.3 m center-line and retract to within

2.705 m overall width with oats. Outrigger jack oats
are attached thus eliminating the need of manually attaching and
detaching them. Controls and sight bubble located in
superstructure cab. 4 outrigger extension lengths are provided with
corresponding "RATED LIFTING CAPACITIES" for crane duty in
conned areas.

Min. Extension 2.2 m center to center
Mid. Extension 5.0 m center to center
Mid. Extension 5.9 m center to center
Max. Extension 6.3 m center to center
Float size (Diameter) 0.4 m

TRAVEL SPEED - 50 km/h

GRADE ABILITY (tanθ) - 78% (at stall), 57% *

* Machine should be operated within the limit of engine crankcase

design (30˚: Cummins QSB6.7)

-3-

COUNTERWEIGHT

Integral with slewing frame Mass... 2,380 kg

STANDARD EQUIPMENT

SPEC. SHEET NO. GR-300E-3-00102/EX-05

- Telematics (machine data logging and monitoring system)
with - HELLO-NET via internet
(availability depends on countries)

- Eco mode system

- Positive control

- Over unwinding prevention

- Emergency steering system

- Transmission neutral position engine start

- Overshift prevention

- Parking braked travel warning

- Tilt-telescope steering wheel

- Halogen head lamp

- Fenders

- Air dryer

- Water separator with lter (high ltration)

- Air cleaner dust indicator

- Full instrumentation package

- Complete highway light package

- Tire ination kit

- Towing hooks-Front and rear

- Lifting eyes

- Hook block tie down (front bumper)

- Weighted hook storage compartment

- Tool storage compartment

OPTIONAL EQUIPMENT

- Wind speed indicator

HOISTING PERFORMANCE

LINE SPEEDS AND PULLS DRUM WIRE ROPE CAPACITIES

Main or auxiliary winch - 0.32 m drum Main drum grooved lagging

Layer Line speeds

m/min

1st

2nd

3rd
4th
5th

6th

3

100
108
117
125
133
142

1

Line pulls
Available

kN (kgf)

56.0 (5,710)

51.1 (5,210)

46.7 (4,760)

43.1 (4,400)

40.0 (4,080)

37.3 (3,800)

2

Wire
rope
layer

1
2
3
4
5
6

16 mm wire rope

Total wire ropeRope per layer

m

30.1

32.8

35.3

37.8

40.5

43.0

m

30.1

62.9

98.2

136.0

176.5

219.5

auxiliary drum grooved lagging

16 mm wire rope

Total wire ropeRope per layer

m

16.4

17.8

19.2

20.6

22.0

23.4

m

16.4

34.2

53.4

74.0

96.0

119.4

- Maximum permissible line pull wire strength.

Main: 49.3 kN (5,030 kgf) with 6x29 class rope.
Auxiliary: 58.2 kN (5,940 kgf) with 6x36 class rope.

1

Line speed based only on hook block, not loaded.

2

Developed by machinery with each layer of wire rope, but not

based on rope strength or other limitations in machinery or
equipment.

3

Sixth layer of wire rope are not recommended for hoisting

operations.

DRUM DIMENSIONS

Root diameter

Length

Flange diameter

Main

Auxiliary

320 mm
484 mm
263 mm
530 mm

-4-

GR-300EX WORKING RANGE CHART

45˚

25˚

5˚

3

1

.

0

m

3

1

.

0

m

81˚

70˚

60˚

3

1

.

0

m

b

2

4

.

4

m

b

o

o

m

1

6

.

8

m

b

o

o

m

9

.

7

m

b

o

o

m

b

o

o

m

50˚

o

o

m

45˚

40˚

+

SPEC. SHEET NO. GR-300E-3-00102/EX-05

45

b

7

35˚

o

o

m

+

1

2

.

8

m

j

i

b

.

2

m

j

i

b

30˚

25˚

20˚

10˚

40

35

30

25

LIFTING HEIGHT (m)

20

15

10

LOAD RADIUS (m)

BOOM

Approx.

1.9m

The above lifting height and boom angle are based on a
straight (unloaded) boom and machine standing level on
rm supporting surface. Allowance should be made for
boom deection obtained under loaded conditions.
The above working range is shown on condition with
outriggers fully (6.3 m) extended.

JIB

Approx.

2.0m

SINGLE TOP

0.67m

Approx.

2.0m

5

0˚

0

35302520151050

Boom Length

9.7 m

16.8 m

24.4 m

31.0 m

-5-

GR-300EX RATED LIFTING CAPACITIES

SPEC. SHEET NO. GR-300E-3-00102/EX-05

B

C

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

15.0

16.0

17.0

18.0

19.0

20.0

22.0

24.0

26.0

28.0

D

0˚

ON OUTRIGGERS FULLY EXTENDED 6.3 m SPREAD

360˚ ROTATION (Unit: ×1000 kg)

A

9.7 m 16.8 m 24.4 m 31.0 m

C C C C

60.6

57.0

53.1

49.2

44.7

40.3

34.9

28.7

18.3

30.0

27.2

23.4

21.3

19.6

18.1

16.6

15.2

14.1

74.4

72.5

70.9

68.9

67.1

65.1

63.3

61.4

59.4

54.9

50.5

45.8

40.3

34.3

27.0

15.7

19.2

19.2

19.2

18.3

17.0

15.8

14.7

13.6

12.9

10.9

9.0

7.05

5.8

4.8

4.05

3.4

79.7

78.5

77.5

76.3

75.0

74.0

72.8

71.5

70.3

67.7

65.0

62.4

59.5

56.5

53.6

50.4

47.0

43.4

39.6

35.5

30.7

25.6

12.5

12.5

12.5

12.5

12.5

12.5

12.5

11.7

11.0

9.75

8.75

7.9

6.6

5.6

4.75

4.15

3.6

3.2

2.75

2.45

2.05

1.8

0˚

LIFTING CAPACITIES AT ZERO DEGREE BOOM ANGLE

ON OUTRIGGERS FULLY EXTENDED 6.3 m SPREAD 360˚ ROTATION

A

9.7 m

B B B B

7.2

13.4 14.3 3.2 21.9 1.2 28.5 0.5

16.8 m 24.4 m 31.0 m

80.8

80.0

79.1

78.3

77.3

76.6

75.6

73.7

71.8

69.8

67.6

65.6

63.5

61.3

59.0

56.6

54.2

51.8

49.2

46.6

40.8

34.4

26.2

13.4

8.4

8.4

8.4

8.4

8.4

8.4

8.1

7.5

6.8

6.2

5.8

5.4

5.0

4.4

3.85

3.45

3.05

2.65

2.4

2.1

1.7

1.3

1.0

0.5

C

ON OUTRIGGERS MID EXTENDED 5.9 m SPREAD

OVER SIDE (Unit: ×1000 kg)

16.8 m 24.4 m 31.0 m

74.4

72.5

70.9

68.9

67.1

65.1

63.3

61.4

59.4

54.9

50.5

45.8

40.3

34.3

27.0

15.7

19.2

19.2

19.2

18.3

17.0

15.8

14.7

13.6

12.6

9.65

7.7

6.25

5.15

4.2

3.5

2.9

79.7

78.5

77.5

76.3

75.0

74.0

72.8

71.5

70.3

67.7

65.0

62.1

59.4

56.5

53.4

50.2

46.9

43.3

39.5

35.2

30.6

25.1

12.5

12.5

12.5

12.5

12.5

12.5

12.5

11.7

11.0

9.75

8.75

7.05

5.95

4.95

4.2

3.55

3.05

2.6

2.25

1.85

1.6

1.35

80.8

80.0

79.1

78.3

77.3

76.6

75.6

73.7

71.8

69.8

67.6

65.5

63.2

61.1

58.8

56.5

54.0

51.6

49.1

46.4

40.4

33.6

25.6

0˚

8.4

8.4

8.4

8.4

8.4

8.4

8.1

7.5

6.8

6.2

5.8

5.3

4.5

3.85

3.35

2.85

2.5

2.2

1.85

1.6

1.15

0.8

0.55

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

15.0

16.0

17.0

18.0

19.0

20.0

22.0

24.0

26.0

A

B

9.7 m

C C C C

60.6

57.0

53.1

49.2

44.7

40.3

34.9

28.7

18.3

30.0

27.2

23.4

21.3

19.6

18.1

16.6

15.2

12.9

D

LIFTING CAPACITIES AT ZERO DEGREE BOOM ANGLE

ON OUTRIGGERS FULLY EXTENDED 5.9 m SPREAD OVER SIDE

16.8 m 24.4 m 31.0 m

0˚

A

9.7 m

B B B B

7.2

12.0 14.3 2.7 21.9 0.9 28.5 0.3

A: Boom length (m)
B: Load radius (m)
C: Loaded boom angle ( ˚)
D: Minimum boom angle ( ˚) for indicated boom length (no load)

-6-

GR-300EX RATED LIFTING CAPACITIES

SPEC. SHEET NO. GR-300E-3-00102/EX-05

C

ON OUTRIGGERS MID EXTENDED 5.0 m SPREAD

OVER SIDE (Unit: ×1000 kg)

3.0

3.5

A

B

4.0

4.5

5.0

5.5

6.0

6.5

7.0

8.0

9.7 m

C C C C

60.6

57.0

53.1

49.2

44.7

40.3

34.9

28.7

18.2

30.0

27.2

23.4

21.3

19.6

15.7

13.2

11.3

9.65

9.0

10.0

11.0

12.0

13.0

14.0

15.0

16.0

17.0

18.0

19.0

20.0

22.0
D

16.8 m 24.4 m 31.0 m

74.4

72.5

70.9

68.9

67.1

65.1

63.3

61.4

59.4

54.9

50.5

45.8

40.3

34.3

27.0

15.7

19.2

19.2

19.2

18.3

17.0

15.0

12.65

10.85

9.5

7.3

5.8

4.7

3.8

3.1

2.55

1.9

79.7

78.5

77.5

76.3

75.0

74.0

72.8

71.5

70.1

67.5

64.8

62.0

59.3

56.3

53.0

49.9

46.6

43.0

39.4

35.2

30.5

24.9

12.5

12.5

12.5

12.5

12.5

12.5

12.5

11.7

10.4

8.2

6.7

5.5

4.65

3.9

3.25

2.75

2.3

1.9

1.6

1.35

1.1

0.75

0˚ 26˚

80.8

80.0

79.1

78.3

77.3

76.6

75.6

73.7

71.8

69.5

67.3

65.2

63.0

60.8

58.5

56.1

53.8

51.3

48.7

46.0

40.3

8.4

8.4

8.4

8.4

8.4

8.4

8.1

7.5

6.8

5.8

4.9

4.25

3.6

3.1

2.65

2.25

1.95

1.65

1.4

1.2

0.8

LIFTING CAPACITIES AT ZERO DEGREE BOOM ANGLE

ON OUTRIGGERS FULLY EXTENDED 5.0 m SPREAD OVER SIDE

0˚

A

9.7 m

B B B

9.0 14.3 1.8 21.9 0.5

7.2

16.8 m 24.4 m

ON OUTRIGGERS MIN EXTENDED 2.2 m SPREAD

OVER SIDE (Unit: ×1000 kg)

B

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

A

9.7 m

C C C C

60.6

13.2

57.0

10.25

53.1

8.0

49.2

6.7

44.7

5.7

40.3

4.7

34.9

3.85

28.7

3.3

18.3

2.7

8.0

9.0

10.0

11.0

12.0

16.8 m 24.4 m 31.0 m

74.2

72.2

70.5

68.4

66.8

64.6

62.8

60.9

58.7

54.6

50.2

45.1

13.0

9.8

7.8

6.45

5.3

4.4

3.65

3.05

2.6

1.85

1.2

0.55

79.5

78.4

77.2

75.9

74.6

73.3

72.0

70.6

69.5

66.7

64.1

61.3

58.7

55.9

13.0
D

LIFTING CAPACITIES AT ZERO DEGREE BOOM ANGLE

ON OUTRIGGERS MIN EXTENDED 2.2 m SPREAD OVER SIDE

C

A

0˚

9.7 m

B

2.5

7.2

A: Boom length (m)
B: Load radius (m)
C: Loaded boom angle ( ˚)
D: Minimum boom angle ( ˚) for indicated boom length (no load)

12.5

10.9

8.8

7.25

6.2

5.2

4.4

3.8

3.3

2.4

1.75

1.35

0.95

0.55

79.9

79.0

77.9

77.0

76.1

75.1

74.1

72.3

70.3

68.3

66.2

64.3

62.2

8.0

7.2

6.05

5.45

4.8

4.25

3.65

2.75

2.05

1.5

1.2

0.9

0.5

60˚ 0˚ 40˚ 53˚

Boom length

Number of parts of line

9.7 m 9.7 m to 16.8 m 16.8 m to 31.0 m

Single top / Jib

8641

-7-

GR-300EX RATED LIFTING CAPACITIES

SPEC. SHEET NO. GR-300E-3-00102/EX-05

ON OUTRIGGERS FULLY EXTENDED 6.3 m SPREAD

C C

80˚

5.9 3.5 8.1 2.4 9.8 1.7

77.5˚

7.7 3.5 9.8 2.3 11.4 1.65

75˚

9.4 3.5 11.4 2.2 12.9 1.6

72.5˚

11.2 3.23 13.0 2.1 14.4 1.55

70˚

12.7 2.95 14.6 2.0 15.8 1.5

67.5˚

14.3 2.75 16.1 1.93 17.2 1.45

65˚

15.8 2.55 17.5 1.85 18.6 1.4

62.5˚

17.3 2.35 19.0 1.8 19.9 1.38

60˚

18.7 2.15 20.4 1.75 21.2 1.35

57.5˚

20.0 1.95 21.6 1.65 22.4 1.33

55˚

21.4 1.75 22.9 1.55 23.6 1.3

52.5˚

22.6 1.55 24.0 1.38 24.7 1.23

50˚

23.9 1.35 25.2 1.2 25.7 1.15

25.0 1.18 26.3 1.1 26.7 1.1

47.5˚
45˚

26.0 1.0 27.3 1.0 27.7 1.0

27.1 0.9 28.2 0.9

42.5˚

28.1 0.8 29.1 0.8

40˚

29.0 0.7 30.0 0.7

37.5˚

30.0 0.6 30.8 0.6

35˚

30.8 0.53 31.5 0.53

32.5˚

31.6 0.45 32.2 0.45

30˚

32.3 0.4 32.8 0.38

27.5˚

33.0 0.35 33.4 0.3

25˚

C C

80˚

5.9 3.5 8.1 2.4 9.8 1.7

77.5˚

7.7 3.5 9.8 2.3 11.4 1.65

75˚

9.4 3.5 11.4 2.2 12.9 1.6

72.5˚

11.2 3.23 13.0 2.1 14.4 1.55

70˚

12.7 2.95 14.6 2.0 15.8 1.5

67.5˚

14.3 2.75 16.1 1.93 17.2 1.45

65˚

15.8 2.55 17.5 1.85 18.6 1.4

62.5˚

17.3 2.35 19.0 1.8 19.9 1.38

18.7 2.15 20.4 1.75 21.2 1.35

60˚

20.0 1.88 21.6 1.6 22.4 1.33

57.5˚

21.4 1.6 22.9 1.45 23.6 1.3

55˚

22.6 1.35 24.0 1.25 24.7 1.15

52.5˚

23.9 1.1 25.1 1.05 25.7 1.0

50˚

25.0 0.95 26.1 0.9 26.7 0.88

47.5˚

26.0 0.8 27.1 0.75 27.7 0.75

45˚

27.1 0.68 28.1 0.63

42.5˚

28.1 0.55 29.0 0.5

40˚

29.0 0.48 29.8 0.43

37.5˚

30.0 0.4 30.7 0.35

35˚

31.0-m Boom + 7.2-m Jib

R W R W R W R W R W R W

ON OUTRIGGERS MID EXTENDED 5.9 m SPREAD

31.0-m Boom + 7.2-m Jib 31.0-m Boom + 12.8-m Jib

5˚ Tilt 25˚ Tilt 45˚ Tilt 5˚ Tilt 25˚ Tilt 45˚ Tilt

R W R W R W R W R W R W

360˚ ROTATION (Unit: ×1000 kg)

OVER SIDE (Unit: ×1000 kg)

31.0-m Boom + 12.8-m Jib

5˚ Tilt 25˚ Tilt 45˚ Tilt5˚ Tilt 25˚ Tilt 45˚ Tilt

80˚

7.7 2.2 11.7 1.2 14.6 0.8

77.5˚

9.8 2.15 13.5 1.15 16.3 0.78

75˚

11.8 2.1 15.3 1.1 17.9 0.75

72.5˚

13.6 1.93 17.1 1.05 19.4 0.73

70˚

15.5 1.75 18.8 1.0 21.0 0.7

67.5˚

17.2 1.63 20.5 0.95 22.5 0.68

65˚

18.9 1.5 22.0 0.9 23.9 0.65

62.5˚

20.6 1.4 23.6 0.88 25.2 0.65

60˚

22.3 1.3 25.1 0.85 26.6 0.65

57.5˚

23.8 1.23 26.4 0.8 27.8 0.65

55˚

25.4 1.15 27.9 0.75 29.0 0.65

52.5˚

26.8 1.1 29.2 0.73 30.2 0.63

50˚

28.3 1.05 30.5 0.7 31.4 0.6

47.5˚

29.6 0.9 31.7 0.68 32.5 0.6

45˚

30.8 0.75 32.8 0.65 33.5 0.6

32.0 0.68 33.8 0.6

42.5˚

33.1 0.6 34.8 0.55

40˚

34.2 0.53 35.7 0.48

37.5˚

35.2 0.45 36.5 0.4

35˚

36.1 0.4

32.5˚

37.0 0.35

30˚

80˚

7.7 2.2 11.7 1.2 14.6 0.8

77.5˚

9.8 2.15 13.5 1.15 16.3 0.78

75˚

11.8 2.1 15.3 1.1 17.9 0.75

72.5˚

13.6 1.93 17.1 1.05 19.4 0.73

70˚

15.5 1.75 18.8 1.0 21.0 0.7

67.5˚

17.2 1.63 20.5 0.95 22.5 0.68

65˚

18.9 1.5 22.0 0.9 23.9 0.65

62.5˚

20.6 1.4 23.6 0.88 25.2 0.65

22.3 1.3 25.1 0.85 26.6 0.65

60˚

23.8 1.23 26.4 0.8 27.8 0.65

57.5˚

25.4 1.15 27.9 0.75 29.0 0.65

55˚

26.8 1.0 29.2 0.73 30.2 0.63

52.5˚

28.2 0.85 30.4 0.7 31.3 0.6

50˚

29.5 0.73 31.6 0.63 32.3 0.55

47.5˚

30.7 0.6 32.7 0.55 33.3 0.5

45˚

31.9 0.48 33.7 0.45

42.5˚

33.1 0.35 34.7 0.35

40˚

ON OUTRIGGERS MID EXTENDED 5.0 m SPREAD

C C

80˚

77.5˚
75˚

72.5˚
70˚

67.5˚
65˚

62.5˚
60˚

57.5˚
55˚

52.5˚
50˚

47.5˚
45˚

R W R W R W R W R W R W

5.9 3.5 8.1 2.4 9.8 1.7

7.7 3.5 9.8 2.3 11.4 1.65

9.4 3.5 11.4 2.2 12.9 1.6

11.2 3.23 13.0 2.1 14.4 1.55

12.7 2.95 14.6 2.0 15.8 1.5

14.3 2.7 16.1 1.93 17.2 1.45

15.8 2.45 17.5 1.85 18.6 1.4

17.1 2.05 18.9 1.65 19.9 1.38

18.6 1.65 20.2 1.45 21.1 1.35

19.8 1.38 21.5 1.23 22.3 1.15

21.1 1.1 22.7 1.0 23.4 0.95

22.4 0.93 23.9 0.83 24.5 0.8

23.6 0.75 25.0 0.65 25.5 0.65

24.8 0.6 26.1 0.5 26.6 0.5

25.9 0.45 27.1 0.35 27.5 0.35

31.0-m Boom + 7.2-m Jib

5˚ Tilt 25˚ Tilt 45˚ Tilt 5˚ Tilt 25˚ Tilt 45˚ Tilt

OVER SIDE (Unit: ×1000 kg)

C: Boom angle ( ˚)
R: Load radius (m)
W :Rated lifting capacity

80˚

77.5˚
75˚

72.5˚
70˚

67.5˚
65˚

62.5˚
60˚

57.5˚
55˚

52.5˚
50˚

-8-

31.0-m Boom + 12.8-m Jib

7.7 2.2 11.7 1.2 14.6 0.8

9.8 2.15 13.5 1.15 16.3 0.78

11.8 2.1 15.3 1.1 17.9 0.75

13.6 1.93 17.1 1.05 19.4 0.73

15.5 1.75 18.8 1.0 21.0 0.7

17.2 1.63 20.5 0.95 22.5 0.68

18.9 1.5 22.0 0.9 23.9 0.65

20.6 1.38 23.6 0.88 25.2 0.65

22.2 1.25 25.1 0.85 26.6 0.65

23.7 1.03 26.5 0.75 27.8 0.65

25.1 0.8 27.7 0.65 29.0 0.65

26.5 0.65 29.0 0.55 30.2 0.55

27.9 0.5 30.3 0.45 31.2 0.45

GR-300EX RATED LIFTING CAPACITIES

67.0

64.3

61.7

58.8

56.0

52.9

49.7

46.4

42.9

4.3

3.4

2.8

2.25

1.8

1.5

1.2

0.95

0.6

SPEC. SHEET NO. GR-300E-3-00102/EX-05

ON RUBBER STATIONARY (Unit: ×1000 kg)

A

B

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

9.7 m

C C C C C C

60.6

18.0

56.8

17.0

53.0

15.0

49.2

12.7

44.9

10.6

39.9

9.0

34.6

7.7

27.7

6.6

17.7

5.7

8.0

9.0

10.0

11.0

12.0

13.0

14.0

15.0

16.0

17.0
D

Over Front

16.8 m 24.4 m

68.8

11.0

66.9

9.5

64.9

8.0

63.1

7.0

61.1

6.1

59.0

5.3

54.6

4.25

50.0

3.45

45.2

2.65

40.1

2.1

33.8

1.6

26.5

1.2

15.7

0.75

0˚

67.2

64.3

61.6

58.8

55.9

52.9

49.7

46.7

43.1

39.4

5.0

3.9

3.15

2.55

2.1

1.75

1.4

1.1

0.85

0.6

28˚

60.6

57.1

53.5

49.7

45.4

40.8

35.3

28.9

20.5

9.7 m

11.0

9.0

7.3

5.7

4.9

4.0

3.2

2.75

2.27

0˚

360˚ Rotation

68.5

5.5

66.3

4.5

64.6

3.7

62.5

3.1

60.9

2.5

58.6

2.1

54.6

1.4

49.9

0.85

44˚ 56˚

66.9

64.3

61.6

58.7

24.4 m16.8 m

2.2

1.6

1.1

0.8

LIFTING CAPACITIES AT ZERO DEGREE BOOM ANGLE

ON RUBBER STATIONARY

A

C

0˚

9.7 m 16.8 m 9.7 m

B B B

5.4 14.3 0.7 7.2 2.1

7.2

Over Front 360˚ Rotation

ON RUBBER CREEP (Unit: x 1,000 kg)

Over Front 360˚ Rotation

B

A

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

9.7 m 16.8 m 24.4 m 9.7 m 16.8m 24.4m

C C C C

60.6

56.8

53.0

49.0

44.7

39.8

34.7

28.0

18.2

18.0

15.45

13.0

11.1

9.3

7.95

6.7

5.75

5.0

68.6

66.6

64.6

62.8

60.8

58.7

54.4

49.9

45.1

39.6

33.3

26.0

14.6

9.7

8.4

7.0

6.0

5.3

4.65

3.6

2.8

2.3

1.8

1.35

1.0

0.6

60.6

57.0

53.3

49.2

44.4

39.6

34.0

27.0

18.1

10.0

8.0

6.5

5.1

4.3

3.7

3.0

2.5

1.95

68.6

66.6

64.7

62.7

60.7

58.9

54.5

50.2

5.1

4.2

3.5

2.7

2.35

1.85

1.3

0.75

67.0

64.3

61.7

58.8

C

1.9

1.35

0.9

0.6

15.0

16.0
D

0˚ 31˚ 0˚ 44˚ 56˚

LIFTING CAPACITIES AT ZERO DEGREE BOOM ANGLE

ON RUBBER CREEP

A

C

0˚

9.7 m 16.8 m 9.7 m

B B B

7.2

4.7

Over Front 360˚ Rotation

14.3

0.5

A: Boom length (m)
B: Load radius (m)
C: Loaded boom angle ( ˚)
D: Minimum boom angle ( ˚) for indicated boom length (no load)

7.2

-9-

1.8

SPEC. SHEET NO. GR-300E-3-00102/EX-05

WARNING AND OPERATING INSTRUCTIONS
FOR ON RUBBER LIFTING CAPACITIES

1. Rated lifting capacities based on crane stability are according
to ISO4305.

2. Rated lifting capacities shown in the chart are based on the
condition that crane is set on rm level surfaces with
suspension lock applied. Those above thick lines are based on
tire capacity and those below, on crane stability. They are
based on actual load radius increased by tire deformation and
boom deection.

3. If the suspension lock cylinders contain air, the axle will not be
locked completely and rated lifting capacities may not be
obtainable. Bleed the cylinders according to the operation
safety and maintenance manual.

4. Rated lifting capacities are based on proper tire ination,
capacity and condition. Damaged tires are hazardous to safe
operation of crane.

5. Tires shall be inated to correct air pressure.

Tires

445/95R25

6. Over front operation shall be performed within 2 degrees in
front of chassis.

Over
front

approx.

2˚

7. On rubber lifting with "jib" is not permitted. Maximum
permissible boom length is 24.4 m.

Air Pressure

900 kPa

360˚

Rear

8. When making lift on rubber stationary, set parking brake.

9. For creep operation, travel slowly and keep the lifted load as
close to the ground as possible, and especially avoid any
abrupt steering, accelerating or braking.

10. Do not operate the crane while carrying the load.

11. Creep is motion for crane not to travel more than 60 m in any
30 minutes period and to travel at the speed of less than 1.6
km/h.

12. For creep operation, choose the drive mode and proper gear
according to the road or working condition.

13. The mass of the hook (270 kg for 30 t capacity, 100 kg for 4.0 t
capacity), slings and all similarly used load handling devices
must be considered as part of the load and must be deducted
from the lifting capacities.

14. For rated lifting capacity of single top, reduce the rated lifting
capacities of relevant boom according to a weight reduction for
auxiliary load handling equipment. Capacities of single top shall
not exceed 4,000 kg including main hook.

15. The lifting capacity data stowed in the Automatic Moment
Limiter (AML-C) is based on the standard number of parts of
line listed in the chart. Standard number of parts of line for on
rubber operation should be according to the following table.

Boom length
in meters

Number of
parts of line

9.7 m

6 4 1

9.7 m to 24.4 m

Single top

-10-

SPEC. SHEET NO. GR-300E-3-00102/EX-05

WARNING AND OPERATING INSTRUCTIONS
FOR LIFTING CAPACITIES

GENERAL

RATED LIFTING CAPACITIES apply only to the machine as

1.
originally manufactured and normally equipped by TADANO
LTD. Modications to the machine or use of optional
equipment other than that specied can result in a reduction
of capacity.
Hydraulic cranes can be hazardous if improperly operated or

2.
maintained. Operation and maintenance of this machine must
be in compliance with information in the Operation and
Maintenance Manual supplied with the crane. If this manual
is missing, order a replacement through the distributor.

SET UP

Rated lifting capacities on the chart are the maximum

1.
allowable crane capacities and are based on the machine
standing level on rm supporting surface under ideal job
conditions. Depending on the nature of the supporting
surface, it may be necessary to have structural supports under
the outrigger oats or tires to spread the loads to a larger
bearing surface.

2.

For outrigger operation, outriggers shall be properly extended
with tires free of supporting surface before operating crane.

OPERATION

1.

Rated lifting capacities on outriggers fully extended as
determined by ISO4305.

2.

Rated lifting capacities above thick lines in the chart are
based on crane strength and those below, on its stability.
They are based on actual load radius increased by boom
deection.

3.

The weight of handling device such as hook blocks (270 kg for
30 t capacity, 100 kg for 4.0 t capacity), slings, etc., must be
considered as part of the load and must be deducted from the
lifting capacities.

4.

Rated lifting capacities are based on freely suspended loads
and make no allowance for such factors as the effect of wind,
sudden stopping of loads, supporting surface conditions,
ination of tires, operating speeds, side loads, etc. Side pull
on the boom or jib is extremely dangerous.
Such action can damage the boom, jib or slewing mechanism,
and lead to overturning of the crane.

5.

Rated lifting capacities do not account for wind on lifted load
or boom. We recommend against working under the conditions
that the load is out of control due to a strong wind. During
boom lift, consider that the rated lifting capacity is reduced by
50% when the wind speed is 9 m/s to 12 m/s, reduced by 70
% when the wind speed is 12 m/s to 14 m/s. If the wind speed
is 14 m/s or over, stop operation. During jib lift, stop operation
if the wind speed is 9 m/s or over.

6.

Rated lifting capacities at load radius shall not be exceeded.
Do not tip the crane to determine allowable loads.

7.

Do not operate at boom lengths, radii, or boom angles, where
no capacities are shown. Crane may overturn without any load
on the hook.

8.

When boom length is between values listed, refer to the rated
lifting capacities of the next longer and next shorter booms for
the same radius. The lesser of the two rated lifting capacities
shall be used.

9.

When making lifts at a load radius not shown, use the next
longer radius to determine allowable capacity.

10.

Load per line should not exceed 39.2 kN (4,000 kgf) for main
winch and auxiliary winch.

11.

Check the actual number of parts of line with Automatic
Moment Limiter (AML-C) before operation. Maximum lifting
capacity is restricted by the number of parts of line of
Automatic Moment Limiter (AML-C). Limited capacity is as
determined from the formula, Single line pull for main winch

39.2 kN (4,000 kgf) x number of parts of line.

12.

The boom angle before loading should be greater to account
for deection. For rated lifting capacities, the loaded boom
angle and the load radius is for reference only.

13.

The 9.7-m Boom length capacities are based on boom fully
retracted.

14.

Extension or retraction of the boom with loads may be
attempted within the limits of the RATED LIFTING CAPACITIES.
The ability to telescope loads is limited by hydraulic pressure,
boom angle, boom length, crane maintenance, etc.
For lifting capacity of single top, deduct the weight of the load

15.
handling equipment from the rated lifting capacity of the boom.
For the lifting capacity of single top, the net capacity shall not
exceed 4,000 kg including the main boom hook mass
attached to the boom.
When a jib is removed, set the jib state switch to the

16.
REMOVED position.
When erecting and stowing jib, be sure to retain it by hand or

17.
by other means to prevent its free movement.
Use "ANTI-TWO-BLOCK DEVICE" disable switch when

18.
erecting and stowing jib and when stowing hook block. While
the switch is pushed, the hoist does not stop, even when 
overwind condition occurs.
For boom length with 7.2-m Jib, rated lifting capacities are

19.
determined by loaded boom angle only in the column headed
"31.0-m Boom + 7.2-m Jib".
For boom length with 12.8-m Jib, rated lifting capacities
are determined by loaded boom angle only in the column
headed "31.0-m Boom + 12.8-m Jib".
For angles not shown, use the next lower loaded boom angle
to determine allowable capacity.

20.

When lifting a load by using jib (aux. winch) and boom (main
winch) simultaneously, do the following:

• Enter the operation status as jib operation, not as boom
operation.

• Before starting operation, make sure that mass of load is
within rated lifting capacity for jib.

21.

The lifting capacity data stowed in the Automatic Moment
Limiter (AML-C) is based on the standard number of parts of
line listed in the chart. Standard number of parts of line for on
outrigger operation should be according to the following table.

Boom length

Number of
parts of line

The lifting capacity for over side area differs depending on outrigger

22.

extension width. Work with capacity corresponding to the extension
width. The lifting capacities for over front and over rear areas are for
"outriggers fully extended". However, the areas (angle a) differ
depending on the outrigger extension width.

Outriggers
extended width

Angle a˚

9.7 m

8 6 1

a

a

9.7 m to

16.8 m

5.9 m

(middle)

45 40 15

16.8 m to

31.0 m

5.0 m

(middle)

Single top/

4

2.2 m

(minimum)

a

a

DEFINITIONS

Load Radius: Horizontal distance from a projection of the axis

1.
of rotation to supporting surface before loading to the center
of the vertical hoist line or tackle with load applied.
Loaded Boom Angle: The angle between the boom base

2.
section and the horizontal, after lifting the rated lifting capacity
at the load radius.
Working Area: Area measured in a circular arc about the

3.
centerline of rotation.
Freely Suspended Load: Load hanging free with no direct

4.
external force applied except by the hoist line.
Side Load: Horizontal side force applied to the lifted load

5.
either on the ground or in the air.

jib

-11-

SPEC. SHEET NO. GR-300E-3-00102/EX-05

WARNING AND OPERATING INSTRUCTIONS
FOR USING THE AUTOMATIC MOMENT LIMITER (AML-C)

1.

Set AML select keys in accordance with the actually operating
crane conditions and don't fail to make sure, before crane
operation, that the displays on front panel are correct.

2.

When operating crane on outriggers:

• Set P.T.O. switch to "ON".

• Press the outrigger state select key to register for the
outrigger operation. If the display agrees with the actual
state, press the set key to register. After the completion of
the registration, the pop-up window closes.

• Press the lift state select key to register the lift state to be
used (single top / jib / boom).

• Each time the lift state select key is pressed, the display
changes. If the display agrees with the actual state, press
the set key to register. After the completion of the
registration, the pop-up window closes.

• When erecting and stowing jib, select the status of jib set
(Jib lift indicative symbol ickers).

3.

When operating crane on rubber:

• Set P.T.O. switch to "ON".

• Press the outrigger state select key to register for the on
rubber operation. Each time the outrigger state select key
is pressed, the display changes. Select the creep
operation, the on rubber state indicative symbol ickers.

• Press the lift state select key to register the lift state.

However, pay attention to the following.
For stationary and creep operation.

• The front capacities are attainable only when the over front
position symbol comes on. When the boom is more than 2
degrees from centered over front of chassis, 360˚
capacities are in effect.

• When a load is lifted in the front position and then slewed
to the side area, make sure the value of the AUTOMATIC
MOMENT LIMITER (AML-C) is below the 360˚ lifting
capacity.

4.

This machine is equipped with an automatic slewing stop
device.
(For the details, see Operation and Maintenance Manual.)
But, operate very carefully because the automatic slewing
stop does not work in the following cases.

• During on rubber operation.

5.

During crane operation, make sure that the displays on front
panel are in accordance with actual operating conditions.

6.

The displayed values of AUTOMATIC MOMENT LIMITER
(AML-C) are based on freely suspended loads and make no
allowance for such factors as the effect of wind, sudden
stopping of loads, supporting surface conditions, ination of
tire, operating speed, side loads, etc.
For safe operation, it is recommended when extending and
lowering boom or slewing, lifting loads shall be appropriately
reduced.

7.

AUTOMATIC MOMENT LIMITER (AML-C) is intended as an
aid to the operator. Under no condition should it be relied
upon to replace use of capacity charts and operating
instruction.
Sole reliance upon AUTOMATIC MOMENT LIMITER (AML-C)
aids in place of good operating practice can cause an
accident. The operator must exercise caution to assure safety.

GR-300EX Axle weight distribution chart

Kilograms

Basic machine
Remove: 1. 4.0 ton hook block

2. 31.8 ton hook block

3. 2-stage jib (7.2m, 12.8m)

GVW

27,190

-100

-270

-630

Front Rear

13,650

-140

-480

-1,085

13,540

40
210
455

(International Division)

4-12, Kamezawa 2-chome,
Sumida-ku, Tokyo 130-0014, Japan

Te l : [phone]
Fax: [phone]

URL

http://www.tadano.com/

E-mail

[e-mail]

Printed in Japan

2015-08-4