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

2,140

2,620

			2,200	5,000	5,900	6,300
			3,330
	9,700–31,000
		2,460
3,535					3,480
				12
				.
				6˚
3˚
.
15
		1,750	370
	3,030	3,350
	7,300
5,725	3,500		2,020
	11,245

Note : Dimension is with boom angle at 0 degree.

GENERAL DIMENSIONS
Turning radius (445/95R25 Tires)				Overall length	approx.	11,245 mm
4 wheel steer		5.8 m		Overall width	approx.	2,620 mm
2 wheel steer		9.8 m		Overall height	approx.	3,535 mm

Speci cations are subject to change without notice.

CRANE SPECIFICATIONS

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-1 {rpm}

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

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.

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

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

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

30ton

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.

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CRANE SPECIFICATIONS

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

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

•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.

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	Cummins QSB6.7 [EU) Stage IIIA]
Model
Type	Direct injection diesel
No. of cylinders	6
Combustion	4 cycle, turbo charged and after cooled
Bore x Stroke, mm	107 x 124
Displacement, liters	6.700
Air inlet heater	24 volt preheat
Air cleaner	Dry type, replaceable element
Oil lter	Full ow with replaceable element
Fuel lter	Full ow with replaceable element
Fuel tank, liters	300, right side of carrier
Cooling	Liquid pressurized, recirculating by-pass
Radiator	Fin and tube core, thermostat controlled
Fan, mm	Suction type, 6-blade, 711 dia.
Starting	24 volt
Charging	24 volt system, negative ground
Battery	2-120 amp. Hour
Compressor, air, l /min	430 at 2,500 min-1
Output, Max. kW (HP)	Gross 160 (220) at 2,500 min-1
Torque, Max. N•m	843 at 1,600 min-1
Capacity, liters	10
Cooling water
Lubrication	15
Fuel	300

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

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)

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

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	SPEC. SHEET NO. GR-300E-3-00102/EX-05
STANDARD EQUIPMENT
- Telematics (machine data logging and monitoring system)	- Fenders
with - HELLO-NET via internet	- Air dryer
(availability depends on countries)	- Water separator with lter (high ltration)
- Eco mode system	- Air cleaner dust indicator
- Positive control	- Full instrumentation package
- Over unwinding prevention	- Complete highway light package
- Emergency steering system	- Tire in ation kit
- Transmission neutral position engine start	- Towing hooks-Front and rear
- Overshift prevention	- Lifting eyes
- Parking braked travel warning	- Hook block tie down (front bumper)
- Tilt-telescope steering wheel	- Weighted hook storage compartment
- Halogen head lamp	- 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
Layer	Line speeds1	Line pulls
		Available2
	m/min	kN (kgf)
1st	100	56.0 (5,710)
2nd	108	51.1 (5,210)
3rd	117	46.7 (4,760)
4th	125	43.1 (4,400)
5th	133	40.0 (4,080)
6th3	142	37.3 (3,800)

	Wire	Main drum grooved lagging		auxiliary drum grooved lagging
		16 mm wire rope		16 mm wire rope
	rope
		Rope per layer	Total wire rope	Rope per layer	Total wire rope
	layer
		m	m	m	m
	1	30.1	30.1	16.4	16.4
	2	32.8	62.9	17.8	34.2
	3	35.3	98.2	19.2	53.4
	4	37.8	136.0	20.6	74.0
	5	40.5	176.5	22.0	96.0
	6	43.0	219.5	23.4	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.

1Line speed based only on hook block, not loaded.

2Developed by machinery with each layer of wire rope, but not based on rope strength or other limitations in machinery or equipment.

3Sixth layer of wire rope are not recommended for hoisting operations.

DRUM DIMENSIONS

	Root diameter		320 mm
	Length	Main	484 mm
		Auxiliary	263 mm
	Flange diameter		530 mm

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