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
Specications 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
conned 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 ination 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-
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