Jcb 3Cx Contractor.pdf

JCB BACKHOE LOADER | 3CX CONTRACTOR

MAX. ENGINE POWER

74.2kW (100hp)

MAX. BACKHOE DIG DEPTH:

5.97 metres (19ft 7in)

MAX. LOADER CAPACITY:

1.0m 3 (1.32yd 3 )

STATIC DIMENSIONS

JCB Backhoe Loaders feature heavy duty one piece mainframe, componentised driveline and fully enclosed engine compartment. All fluid and component compartments are lockable using the ignition key.

Machine model

3CX Contractor

m (ft-in)

Machine model

3CX Contractor

m (ft-in)

Total travel length

5.62 (18-5)

Total travel clearance

3.61 (11-10)

Axle centreline distance

2.17 (7-1)

Rear frame width

2.35 (7-8)

Slew centre to rear axle centre distance

1.36 (4-6)

Shovel width

2.35 (7-8)

Stabiliser feet clearance

0.37 (1-2)

Rear frame width

2.24 (7-4)

Kingpost clearance

0.52 (1-8)

K* Shovel width

2.23 (7-4)

Steering wheel centre height

1.94 (6-4)

* Narrow option

A Product

of Hard Work

Cab roof height

2.91 (9-6)

JCB BACKHOE LOADER | 3CX CONTRACTOR

GROUND LINE ANGLES

STEERING

Full power hydrostatic system utilising the main hydraulic pump via a steering priority valve. In the event of engine failure,

emergency steering is maintained.

Machine model

3CX Contractor

Axles

Steer drive

Steering turns – lock to lock

2 3 ⁄ 4

m (ft-in)

Kerb – kerb turning circle – unbraked

8.1 (26-7)

Kerb – kerb loader clearance circle – unbraked

10.4 (34-1)

Turning circle – braked

6.9 (22-8)

Loader clearance circle – braked

9.5 (31-2)

(Depending on tyre size, ground conditions etc.)

Approach angle 66°

Interference angle/ramp to ground plane 120°

Departure angle 20°

ENGINE SUPPORT SYSTEM

Engine support system is designed for ease of daily checks, routine maintenance and longer service intervals.

Fuel type

Diesel.

OPERATING WEIGHTS

Fuel filter

Replaceable spin-on cartridge plus water/sediment separator prefilter.

Air cleaner

Dual, dry element type with self cleaning internal air intake precleaner.

Operating weight includes machine equipped with 610mm excavator bucket, Extradig 6-in-1 shovel with forks and full

fuel tank.

Oil filter and lubrication

Full flow, spin-on type filter.

Cooling system

Hot climate specification, pressurised 14.5 psi (1.0 bar) suction fan. Pressurised recovery tank with

integral filler neck.

Machine model

3CX Contractor

kg (lb)

Weight

8070 (17800)

ELECTRICAL AND INSTRUMENTATION

12 volt negative ground, utilising wiring and connectors meeting IP69 water ingress test standard. Central fuse panel.

Gauges

Tachometer, engine coolant temp, fuel level, hourmeter, clock.

ENGINE

Warning system

Audible and visual system for engine oil, water in fuel, transmission oil temperature and pressure,

park brake, air cleaner, alternator.

Four cylinder, direction injection diesel. Belt driven water pump, spin-on oil, fuel filters, water separator prefilter, dual element air

cleaner with internal precleaner, glow plug cold start aid.

Battery

115 A/hr.

Pre-wire

Radio speakers (cab), beacon (all).

Horn

Controlled from both front and rear.

Machine model

3CX Contractor

Alternator

95 amp standard.

Manufacturer

JCB

Front working lights

2 twin beam fixed position.

Aspiration

Turbo

Rear working lights

4 adjustable.

Displacement

4.4 Ltr

No. of cylinders

Rated engine RPM

2200

JCB TORQUE LOCK (Optional)

Power ratings

Gross ISO 14396 and SAE J1995

kW (HP)

74.2 (100)

An industry exclusive, JCB Torque Lock enables an operator to dramatically reduce travel time and improve fuel efficiency during

roading operations.

Torque Lock incorporates a clutch which, when engaged, enables a direct connection between the engine and gearbox.

By “locking up” the torque converter slippage is eliminated. Torque Lock engages automatically in 4th gear (Powershift models)

or “A” mode (Autoshift models).

Not available on Synchroshuttle models.

Net ISO 9249 and SAE J1349

kW (HP)

72.8 (97.6)

Torque ratings

Gross ISO/TR 14396 and SAE J1995

Nm (lbf ft)

425 (313.5)

Net ISO/TR 9249 and SAE J134

Nm (lbf ft)

417 (307.6)

A Product

of Hard Work

Max. torque RPM

1300

JCB BACKHOE LOADER | 3CX CONTRACTOR

TRANSMISSION

REAR AXLE

The JCB Transmissions are designed and built specifically for JCB Backhoe Loaders. They feature synchronised shifting in all

gears. Powershuttle between forward and reverse. Ground speeds are designed to maximise production.

JCB auto powershift 6 speed transmission features automatic upshift and downshift between 4th, 5th and 6th gear controlled by

machine travel speed and incorporates a kickdown pedal to select first gear. The operator may use the Autoshift in manual mode

when operator control of shift points is desired. The JCB Powershift transmission allows fast gear changing without losing speed

or momentum on gradients. The integral torque converter and electrically operated reversing shuttle help this backhoe loader

produce fast cycle times for real wheeled loader performance. Low 1st and 2nd gear ratios provide excellent tractive effort for

loading and sitestripping.

JCB rear axles are designed and built specifically for backhoe loaders and accept a wide variety of tyre combinations.

Machine model

3CX Contractor

Type

JCB Epicyclic hub reduction with torque proportioning

Limited slip

Option

Axle ratings

kg (lb)

Static load rating

21000 (46296)

Dynamic load rating

7000 (15432)

Machine model

3CX Contractor

Manufacturer

JCB

Type

Powershift

Automatic Powershift

CAB

Torque converter

305mm (12")

Torque converter ratio

2.54:1

Excellent visibility (and safety) is provided by the extra large tinted glass areas of 6.4 sq m (70 sq ft). Cab frame is ROPS and FOPS

approved for maximum operator protection. ISO standard 3471 and 3449 (SAE J1040 and J231).

Torque Lock

Option

Gears forward/reverse

4/4

6/4

A fully adjustable seat with lumbar support combines with ergonomically positioned controls to minimise operator fatigue.

Gear selection

Powershift

●

Shuttle control – F/R

Power shuttle

The in-cab noise levels are the lowest in the business for maximum operator comfort.

●

Travel speeds

kph (mph)

A radio location is provided as standard plus twin speakers for stereo sound.

●

Tyres equipped – front 12.5x18 rear 18.4x26

Gear 1

Cab provides easy access through a two door frame. Rear side windows open either partially or fully for extra ventilation.

Standard features include: lap seat belt, 3 speed fresh air/recycle heater, front and rear screen wash/wipers, front and rear

horn, exterior mirrors, and flat easy-clean floor.

●

5.2 (3.2) F / 5.2 (3.2) R

5.09 (3.1) F / 6.3 (3.9) R

Gear 2

9.6 (5.9) F / 9.6 (5.9) R

8.4 (5.2) F / 8.5 (5.4) R

Gear 3

22.3 (13.8) F / 22.3 (13.8) R

11.3 (7.0) F / 22.4 (14.4) R

The instrument panel is positioned to the right-hand side for ease of viewing from either the loading or excavating position

and has an optional lockable cover for vandal proofing. Engine speed, fuel and coolant temperature gauges, (and clock on

cab builds) are mounted in the panel.

●

Gear 4

40.0 (24.9) F / 40 (24.9) R

18.0 (11.4) F / 29.9 (19.7) R

Gear 5

–

29.3 (19.0) F / –

Gear 6

–

38.3 (23.8) F / –

A high performance air conditioning system is optionally available on turbo builds providing the operator with a cool working

environment when working in high temperatures.

●

Mechanical suspension seat gives the operator a comfortable operating position.

●

FRONT AXLE

An optionally available heated air suspension seat gives the operator the ultimate comfort with automatic compensation

for weight.

●

JCB front axles are designed and built specifically for backhoe loaders and accept a wide variety of tyre combinations.

Machine model

3CX Contractor

JCB PRECISION CONTROL (Optional)

Type

JCB 4WD steer drive with torque proportioning

Axle ratings

kg (lb)

JCB Precision Control offers smooth, low effort and productive operation, while reducing operator fatigue. Excavator control

joysticks are integrated into the seat armrests, which provides increased legroom, improved job visibility and hydraulic excavator

ergonomics. A proportional switch is mounted in the joystick to operate JCB’s Extradig. An optional joystick mounted switch is

also available to operate auxiliary attachments. The low effort mechanical loader control incorporates an optional proportional

roller to operate loader mounted attachments.

Best in class hydraulic modulation combined with the greatest digging performance, means that the JCB Precision Control is

unmatched in any backhoe loader.

Static load rating

16500 (36375)

Dynamic load rating

5500 (12125)

Oscillation angle

16°

Steering ram

Powered track rod

A Product

of Hard Work

JCB BACKHOE LOADER | 3CX CONTRACTOR

LOADER DIMENSIONS

LOADER ATTACHMENTS

LOADER DIMENSIONS – 6-in-1 Shovel

LOADER ATTACHMENTS – Forklift Performance and Data

m (ft-in)

6-in-1 Shovel mounted forks

Quickhitch mounted forks

Dump height

2.74 (9-0)

m (ft-in)

Load over height

3.20 (10-6)

Section width

0.08 (0-3 1 ⁄ 8 )

Pin height

3.45 (11-4)

Fork length

1.1 (3-7)

Pin forward reach

0.36 (1-2)

Reach at ground

2.66 (8.9)

2.03 (6-8)

Reach at ground (toe plate horizontal)

1.37 (4-6)

Reach at full height

2.25 (7-5)

1.72 (5-8)

Max. reach at full height

1.15 (3-9)

Fork lift height

2.92 (9-7)

3.27 (10-9)

Reach at full height fully dumped

0.78 (2-7)

Fork spacing – min

0.2 (0-8)

Dig depth

0.10 (0-4)

Fork spacing – max

2.17 (7-3)

1.03 (3-4)

Rollback at ground

45°

SWL @ 500mm load centres

kg (lb)

1000 (2205)

2000 (4410)

Dump angle

43°

Jaw opening width

0.95 (3-1)

LOADER PERFORMANCE

LOADER ATTACHMENTS – Direct Mount

JCB loaders provide parallel lift self levelling on the up and down cycle enhancing load retention and use of optional pallet forks.

High capacity buckets combined with high lift and breakout forces maximise productivity.

Loader buckets are listed according to size and application. All buckets are drilled to accept optional auxiliary cutting edge or teeth.

Flat top box section provides rigidity and assists in bucket levelling.

Machine model

Standard lift rams

Large lift rams option

Loader breakout of shovel

kgf (lbf)

6531 (14398)

6-in-1 Shovel

Loader breakout – arms

kgf (lbf)

4732 (10432)

6203 (13675)

Capacity SAE

Lift capacity to full height – A*

kg (lb)

3229 (7119)

4308 (9498)

Width mm (ft-in)

Rated m 3 (yd 3 )

Struck m 3 (yd 3 )

Lift capacity to full height – B*

kg (lb)

3169 (6986)

4248 (9365)

2235 (7-4)

1.0 (1.32)

0.83 (1.09)

Clamping force (A* and B*)

kgf (lbf)

2940 (6480)

2350 (7-8)

1.0 (1.32)

0.83 (1.09)

A Product

of Hard Work

* Type A shovel = 2235mm (7'4") / Type B shovel = 2350mm (7'8")

JCB BACKHOE LOADER | 3CX CONTRACTOR

BRAKES

HYDRAULIC SYSTEM

The JCB braking system ensures effective, fade-free braking. The self-adjusting, multi-disc arrangement is inboard mounted and is

oil immersed for minimum maintenance and a long operating life.

The Open Centre system uses twin gear pumps and Hydraulic Speed Control (HSC) with a power modulation valve that

automatically varies hydraulic power to match digging conditions for extra performance and power.

A 3 position switch allows the selection of 2 wheel drive with two wheel braking; 2 wheel drive with four wheel braking or

4 wheel drive with four wheel braking.

Open centre hydraulic system using simple and reliable high efficiency gear pumps.

●

A Power Modulation Valve automatically varies the hydraulic power to match digging conditions to improve performance

and efficiency – automatically dumps one pump when 4th gear selected on powershift models.

●

All machines are fitted with servo assisted brakes as standard for low effort braking.

●

Twin brake pedals provide tighter turning circle and enhanced steering control on slippery ground.

The HSC switch enables controlled use of hydraulic response depending upon application.

●

Automatic compensation ensures ‘straight’ machine braking.

Easily used, ergonomically positioned levers give excellent control of the loader and backhoe, thus reducing operator fatigue.

●

Disc diameter: 220 mm (8.7 in). Friction area: 129,000 sq.mm (200 sq. in) per brake.

An independent pump powers the Extradig dipper so that it can extend or retract without breaking the digging cycle.

This allows faster cycle times and simultaneous use of the telescopic and normal excavator actions in operations such as

grading and bank dressing.

●

The integral park brake is a ball and ramp, oil immersed type located within the transmission and will hold the machine on

1:3 gradients. It is an over-centre type, adjustable within the cab, with transmission disconnect to prevent premature brake

pad wear. There are 5 friction brake discs having an outside diameter of 127mm (5 in). Frictional area per brake disc is

47.65 sq. cm (7.39 sq. in) giving a total frictional area of 476.5 sq. cm (73.9 sq. in).

●

A full flow 10 micron filter ensures that oil stays free of contaminants.

●

Engine

Turbo

Pump flows at 2200rpm

l/min (gal/min)

Main pump output

81 (17.8)

Second pump output

72 (15.8)

TYRES

System working pressure

bar (lbf/sq in)

Backhoe and loader

251 (3650)

Front

16/70 x 20, 10PR Traction or Industrial

Rear

18.4 x 26, 12PR Traction or Industrial

16.9 x 28, Radial Traction

JCB SMOOTH RIDE SYSTEM (Optional)

SERVICE CAPACITIES

The JCB Smooth Ride System (SRS) consists of a dry nitrogen and oil filled accumulator installed in line with the loader lift cylinders.

When activated, the Smooth Ride System allows the loader arms to float. This action counteracts variations in road or site

surfaces and provides the operator with a smooth ride. The JCB Smooth Ride System is manually controlled, via a rocker switch

on the instrument panel, for maximum benefit and user flexibility.

Machine model

3CX Contractor

ltr (gal)

Cooling system

18.5 (4.1)

Fuel tank

160 (35.2)

Engine oil with filter

15 (3.3)

Powershift transmission with filter

16 (3.5)

JCB auto powershift

16 (3.5)

Rear axle

16 (3.5)

Front drive axle

16 (3.5)

JCB POWERSLIDE (Optional)

Hydraulic system incl. tank

132 (29)

Exclusive to JCB, this option enables the excavator’s sideshift carriage to be hydraulically powered across the rearframe by the

operation of a pedal or joystick mounted proportional switch (Precision Control) in the cab.

With this feature there is no need to “push” the carriage across with the bucket avoiding ground damage and the need to relocate the

whole machine.

A Product

of Hard Work

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