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Jcb G30
Maintenance schedule, common problems & OEM parts breakdown
The JCB G30 is a generating power unit within the JCB lighting tower and generator set family, not a construction excavator or loader. It is powered by a TD2009 L04 engine and produces 20.4 kVA at 50 Hz (the OEM part reference prime) or 27 kVA at 50 Hz (the OEM part reference prime). Production years for the G30 series span approximately 2006 to 2007 based on available parts diagrams. Configurations include prime power generator sets designed for industrial and construction site lighting and power needs.
The G30 series represents a specific generation of JCB power products distinct from the heavy construction machinery line. It matters in the used and parts market as a dedicated power solution where the TD2009 engine assembly provides a reliable, serviceable power source for remote sites. Availability of specific generator set components and engine assemblies remains critical for fleet continuity in lighting tower applications.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Jcb G30 specifications
Engine
| Model | Perkins 403D-15 |
| Gross Power | 18.4 kW (24.7 hp) at 2100 rpm |
| Net Power | 18.4 kW (24.7 hp) |
| Displacement | 1496 cc |
| Cylinders | 4 |
| Emissions Tier | BS III |
Weights
| Operating Weight | 2870 kg (6327 lb) |
Dimensions
| Transport Length | 4080 mm (13 ft 5 in) |
| Transport Width | 1502 mm (4 ft 11 in) |
| Transport Height | 2400 mm (7 ft 10 in) |
| Ground Clearance | 270 mm (10.6 in) |
| Tailswing Radius | 1220 mm (4 ft 0 in) |
Performance
| Maximum Digging Depth | 3050 mm (10 ft 0 in) |
| Maximum Reach at Ground Level | 4660 mm (15 ft 3 in) |
| Maximum Digging Height | 4495 mm (14 ft 9 in) |
| Maximum Dump Height | 3220 mm (10 ft 7 in) |
| Bucket Digging Force | 23 kN |
| Dipper Digging Force | 17 kN |
| Hydraulic System Flow | 70.21 lpm (18.5 gpm) |
| Auxiliary Flow | 59 lpm (15.6 gpm) |
| System Pressure | 235 bar (3408 psi) |
Service capacities (summary)
| Fuel Tank | 56 l (14.8 gal) |
| Hydraulic System | 71 l (18.8 gal) |
| Hydraulic Tank | 45 l (11.9 gal) |
| Engine Oil | 4.5 l (1.2 gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Jcb G30 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 100 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the G30 beyond the schedule
Predictive Maintenance & Fluid Analysis
Collect baseline oil samples from the engine, hydraulic system, and axle at the 500-hour interval to monitor wear trends. Inspect the hydraulic return filter magnet for metallic debris before disposal. Use JCB Engine Oil Special or equivalent 15W-40 diesel oil meeting the machine's API specification. Check coolant silicate separation in the expansion bottle to prevent corrosion. Monitor turbocharger shaft play and wastegate function during the 1000-hour service to predict engine performance degradation.
Corrective & Common Repairs
Address common rail pressure faults and injector drift issues using JCB ServiceMaster diagnostic tools. Replace primary and secondary fuel filters to protect common-rail injectors from contamination. Inspect and replace worn drive belts on the alternator and fan. Check for chafing or pinhole seepage in hydraulic hoses and cylinder rod scoring. Verify slew ring bolt torque on associated excavator platforms if applicable. Replace air filter elements when restriction indicators signal clogging.
Overhaul & Rebuild Points
The 2000-hour deep service requires full hydraulic oil drainage and tank cleaning. Measure swing ring radial and axial play using a dial indicator to assess bearing wear. Inspect structural boom, arm, and chassis components for unauthorized welding or cracking. Check injector spray patterns and replace as required. Service immersed brake conditions on wheeled variants. Perform complete electrical system inspections to identify corroded connections or worn wiring harnesses before failure.
Seasonal & Environment Servicing
In high-temperature or dusty environments, shorten service intervals for air filters and hydraulic systems. Use JCB Hydraulic Fluid 46 for ambient temperatures over 30°C (86°F). In cold climates, ensure glow plugs cycle correctly to prevent unburned fuel smoke during starts. Check coolant expansion tank integrity for cracking in early production models. Verify track tension and roller condition on undercarriage units exposed to abrasive materials. Maintain proper battery electrolyte levels in non-sealed units during temperature extremes.
G30 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 32/925872 | Filter, Fuel Element, Cartridge | Fuel system service | Check fitment → |
| 32/925873 | Head, Fuel Filter | Fuel system service | Check fitment → |
| 32/926109 | Filter, Fuel, Assembly | Fuel system service | Check fitment → |
| 32/926110 | Element, Fuel Filter | Fuel system service | Check fitment → |
| 321/10092 | Filter, Air Assembly | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
G30 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| P0087 | Fuel rail/system pressure too low | Clogged fuel filters, failing lift pump, or restricted fuel supply. | Check fuel filter condition and fuel pump operation. |
| P0117 | Engine coolant temperature sensor circuit low voltage | Faulty coolant temperature sensor, shorted wiring, or poor connector contact. | Inspect sensor wiring harness and connector for corrosion or damage. |
| P0521 | Engine oil pressure sensor range/performance issue | Faulty oil pressure sensor, low oil level, or sensor circuit malfunction. | Verify oil level and inspect sensor electrical connections. |
| P2047 | DEF/AdBlue injector circuit open (SCR system fault) | Open circuit in the reductant injector wiring or faulty injector solenoid. | Inspect injector wiring harness and connector pins for damage. |
| U0100 | Lost communication with Engine Control Module (ECM) | CAN bus communication failure, loose connectors, or low system voltage. | Check battery voltage and inspect CAN bus wiring connections. |
| 101 | Low transmission clutch pressure detected | Low transmission fluid level, faulty pressure sensor, or internal transmission issue. | Check transmission fluid level and inspect pressure sensor. |
| F01 | Engine control module failure | ECU hardware fault, power supply issue, or internal ECU error. | Check ECU power and ground connections; replace ECU if faulty. |
| E420 | Low hydraulic pressure | Low hydraulic oil level, worn hydraulic pump, or relief valve issue. | Check hydraulic oil level and inspect for leaks. |
| E512 | Low voltage detected | Weak battery, faulty alternator, or loose battery cables. | Test battery charge and alternator output. |
| D901 | Communication error with display unit | Faulty display module, broken CAN bus wiring, or loose connector. | Inspect display unit connectors and CAN bus wiring integrity. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
G30 attachments & work tools
Excavator Buckets
Available types include Deep Profile, Ditch Maintenance, Grading, Heavy Duty, Jaw, Ribbed, Tapered Ditching, and Tilting Grading buckets. These are designed for improved productivity, efficient digging, better material retention, and clean release of material.
Hydraulic Breakers
JCB offers an OEM breaker range designed to work in harmony with its machines and other excavator carriers. Specific models compatible with this class include the JCB Hammermaster HM 140.
Augers and Ground Bore
Ground Bore attachments are listed as available options for the machine class. These specialist attachments are designed to perform tough application tasks.
Coupler Systems
The machine is available with Quickhitch systems to allow fast changeover of attachments. A variable pin centre design enables the hitch to pick up a wider range of attachments, maximizing flexibility and productivity.
Forks and Material Handling
A range of fork options is available for effortless pick and place applications. These are part of the broader attachment line designed to enhance machine versatility.
Sweepers
JCB offers a range of sweepers to further increase the versatility of the machine for highly effective cleaning on job sites.
Tilt Rotators
Tilt rotators are advanced accessories that enable attachments to tilt up to 45 degrees and rotate 360 degrees. They feature an integrated hydraulic system that connects to the machine for multi-directional movement.
Hydraulic Hand Tools
Hydraulic hand tools are designed to run off JCB Power Packs or handheld tool circuits (HTC) available on some machines. Available pressure range options include one to five bar, 25 bar, 100 bar, 300 bar, and 600 bar.
All G30 assemblies by section
Every catalogued assembly group for the Jcb G30. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Z Generating Power Units
Z0-4-1 Generator Set, G22q 16.3kva, 50hz 220/240v Prime
| 32***06 | Jcb, Generator G22q, 16.3kva | 1 |
Z0-8-1 Generator Set, G33 22.7kva, 50hz 220/240v Prime
| 32***14 | Jcb, Generator G33, 22.7kva | 1 |
Z0-2-2 Generator Set, G17q 15kva, 50hz 380/415v Prime
| 32***04 | Jcb, Generator G17q, 15kva | 1 |
Z0-3-2 Generator Set, G22 20kva, 50hz 380/415v Prime
| 32***07 | Jcb, Generator G22, 20kva | 1 |
Z0-6-1 Generator Set, G30 20.4kva, 50hz 220/240v Prime
| 32***10 | Jcb, Generator G30, 20.4kva | 1 |
Z0-1-1 Generator Set, G17 12.3kva, 50hz 220/240v Prime
| 32***01 | Jcb, Generator G17, 12.3kva | 1 |
Z0-1-2 Generator Set, G17 15kva, 50hz 380/415v Prime
| 32***03 | Jcb, Generator G17, 15kva | 1 |
Z0-7-1 Generator Set, G30q 20.4kva, 50hz 220/240v Prime
| 32***11 | Jcb, Generator G30q, 20.4kva | 1 |
Z0-8-2 Generator Set, G33 30kva, 50hz 380/415v Prime
| 32***16 | Jcb, Generator G33, 30kva | 1 |
Z0-7-2 Generator Set, G30q 27kva, 50hz 380/415v Prime
| 32***13 | Jcb, Generator G30q, 27kva | 1 |
Z0-3-1 Generator Set, G22 16.3kva, 50hz 220/240v Prime
| 32***05 | Jcb, Generator G22, 16.3kva | 1 |
Z0-6-2 Generator Set, G30 27kva, 50hz 380/415v Prime
| 32***12 | Jcb, Generator G30, 27kva | 1 |
Z0-9-1 Generator Set, G33q 22.7kva, 50hz 220/240v Prime
| 32***15 | Jcb, Generator G33q, 22.7kva | 1 |
Z0-5-3 Generator Set, G30r
| 32***12 | Jcb, Generator G30r | 1 |
Z0-9-2 Generator Set, G33q 30kva, 50hz 380/415v Prime
| 32***17 | Jcb, Generator G33q, 30kva | 1 |
Z0-4-2 Generator Set, G22q 20kva, 50hz 380/415v Prime
| 32***08 | Jcb, Generator G22q, 20kva | 1 |
Z0-2-1 Generator Set, G17q 12.3kva, 50hz 220/240v Prime
| 32***02 | Jcb, Generator G17q, 12.3kva | 1 |
Z0-5-2 Generator Set, G20r
| 32***11 | Jcb, Generator G20r | 1 |
Z1-1-1 Engine Assembly, D2009 L03, 321/10001
| 32***01 | Engine, Assembly, D2009 L03 | 1 |
Z1-3-1 Engine Assembly, Td2009 L04, 321/10003
| 32***03 | Engine, Assembly, Td2009 L04 | 1 |
Z1-2-1 Engine Assembly, D2009 L04, 321/10002
| 32***02 | Engine, Assembly, D2009 L04 | 1 |
Z3-1-1 Lubricants Primers, & Sealants
| 02***24 | Loctite | 0 |
| 02***74 | Loctite | 0 |
| 32***29 | Lubricant, O Ring, P80 | 0 |
Z6-1-1 Fuel Filter
| 32***72 | Filter, Fuel Element, Cartridge | 1 |
Z6-2-1 Filter, Oil
| 32***76 | Element, Oil Filter, Cartridge | 1 |
Z8-1-1 Front End Drive, Accessory, With Cooling Fan
| 02***03 | Bolt, Hex Head | 1 |
| 02***54 | Sleeve Adapter | 1 |
| 02***56 | Pulley Crankshaft | 1 |
Z8-5-1 Cooling Fan & Spacer
| 02***08 | Bolt, Hex Head M8x20 | 4 |
| 02***87 | Screw, Button Head | 3 |
| 02***88 | Adapter | 1 |
Z8-2-1 Front End Drive, Accessory, With Cooling Fan
| 02***00 | Bolt, Alternator | 1 |
| 02***03 | Bolt, Hex Head | 1 |
| 02***04 | Belt, Fan Drive | 1 |
Z9-1-1 Starter Motor, 12.Volt
| 02***01 | Sleeve, Rubber | 1 |
| 02***02 | Bolt, Hex Head M10x45 | 2 |
| 71***16 | Motor, Starter | 1 |
Z10-2-1 Alternator, 12volt
| 02***05 | Bolt, Hex Head M8x16 | 3 |
| 02***06 | Bracket, Alternator Support | 1 |
| 02***07 | Lever | 1 |
Z10-1-1 Alternator, 12volt
| 02***05 | Bolt, Hex Head M8x16 | 3 |
| 02***07 | Lever | 1 |
| 02***09 | Bolt, Hex Head M8x40 | 1 |
Z11-1-1 Switches & Senders, 12volt
| 02***11 | Rail, Glow Plug Connector | 1 |
| 02***12 | Nut, Locking | 3 |
| 70***69 | Sender, Temperature, Thermostat | 1 |
Z11-2-1 Switches & Senders, 12volt
| 02***10 | Rail, Glow Plug Connector | 1 |
| 02***12 | Nut, Locking | 4 |
| 70***68 | Switch, Oil Pressure | 1 |
Z11-3-1 Switches & Senders, 12volt
| 02***10 | Rail, Glow Plug Connector | 1 |
| 02***12 | Nut, Locking | 4 |
| 70***68 | Switch, Oil Pressure | 1 |
Z12-2-1 Fuel Pipework, Low Pressure
| 02***36 | Olive | 5 |
| 02***37 | Pipe | 1 |
| 02***38 | Nut | 6 |
Z12-3-1 Fuel Pipework, High Pressure
| 02***09 | Bolt, Hex Head | 2 |
| 02***35 | Clamp | 1 |
| 02***41 | Pipe, Injection No.1 | 1 |
Z12-4-1 Fuel Pipework, Low Pressure
| 02***36 | Olive | 5 |
| 02***37 | Pipe | 1 |
| 02***38 | Nut | 6 |
Z12-5-1 Fuel Pipework, Low Pressure, Tc
| 02***36 | Olive | 4 |
| 02***37 | Pipe | 1 |
| 02***38 | Nut | 6 |
Z12-1-1 Fuel Pipework, High Pressure
| 02***09 | Bolt, Hex Head | 2 |
| 02***35 | Clamp | 1 |
| 02***51 | Pipe, Fuel Injector No.1 | 1 |
Z12-11-1 Fuel Filter
| 02***36 | Bolt, M10x25 Hex Head | 2 |
| 02***03 | Bracket | 1 |
| 32***72 | Filter, Fuel Element, Cartridge | 1 |
Z12-10-1 Fuel Filter
| 02***36 | Bolt, M10x25 Hex Head | 2 |
| 32***72 | Filter, Fuel Element, Cartridge | 1 |
| 32***73 | Head, Fuel Filter | 1 |
Z13-1-1 Fuel Injector
| 02***59 | Washer | 3 |
| 02***60 | Clamp | 3 |
| 02***61 | Bolt, Torx Head | 3 |
Z13-2-1 Fuel Injector
| 02***59 | Washer | 4 |
| 02***60 | Clamp | 4 |
| 02***61 | Bolt, Torx Head | 4 |
Z13-3-1 Fuel Injector, Tc
| 02***59 | Washer | 4 |
| 02***60 | Clamp | 4 |
| 02***61 | Bolt, Torx Head | 4 |
Z14-1-1 Fuel Lift Pump
| 02***05 | Bolt, Hex Head M8x16 | 4 |
| 02***62 | O Ring | 1 |
| 17***00 | Pump, Fuel Lift | 1 |
Z14-2-1 Fuel Lift Pump, Tc
| 02***05 | Bolt, Hex Head M8x16 | 4 |
| 02***62 | O Ring | 1 |
| 17***01 | Rod, Push | 1 |
Z15-1-1 Fuel Injection Pump
| 02***46 | Bolt, Hex Head M8x30 | 3 |
| 02***64 | Gear, Fuel Injection | 1 |
| 02***36 | Olive | 1 |
Z15-2-1 Fuel Injection Pump
| 02***46 | Bolt, Hex Head M8x30 | 3 |
| 02***64 | Gear, Fuel Injection | 1 |
| 02***38 | Nut | 2 |
Z15-3-1 Fuel Injection Pump
| 02***46 | Bolt, Hex Head M8x30 | 3 |
| 02***64 | Gear, Fuel Injection | 1 |
| 02***36 | Olive | 1 |
Z16-1-1 Water Pump
| 02***46 | Bolt, Hex Head M8x30 | 3 |
| 02***52 | Bolt, Hex Head M8x70 | 5 |
| 02***07 | Pulley, Water Pump | 1 |
Z18-1-1 Thermostat & Housing
| 02***84 | Bolt, Hex Head M8x25 | 2 |
| 02***90 | Connector | 1 |
| 02***91 | O Ring | 1 |
Z19-1-1 Rocker Cover
| 02***45 | Bolt, Hex Head M8x50 | 8 |
| 02***71 | Pipe, Breather | 1 |
| 02***72 | Cap, Filler | 1 |
Z19-2-1 Rocker Cover
| 02***45 | Bolt, Hex Head M8x50 | 10 |
| 02***69 | Cover, Rocker | 1 |
| 02***71 | Pipe, Breather | 1 |
Z20-1-1 Rocker Shaft, Assembly
| 02***92 | Lever, Rocker | 1 |
| 02***93 | Bearing, Rocker Lever | 8 |
| 02***94 | Screw, Flanged Head | 1 |
Z21-1-1 Valve Tappets & Push, -Rods
| 02***96 | Tappet | 8 |
| 02***42 | Rod, Push | 8 |
Z21-2-1 Valve Tappets & Push, -Rods
| 02***95 | Rod, Push | 8 |
| 02***96 | Tappet | 8 |
Z22-1-1 Turbocharger, Tc
| 02***15 | Turbocharger | 1 |
Z22-2-1 Turbocharger, Heatshield
| 02***12 | Shield, Heat | 1 |
| 02***13 | Bolt, Hex Head M10x16 | 2 |
| 02***14 | Bolt, Hex Head | 1 |
Z23-1-1 Turbo Pipework
| 02***05 | Bolt, Hex Head M8x16 | 2 |
| 02***97 | Clip, Hose | 2 |
| 02***16 | Pipe, Inlet | 1 |
Z24-1-1 Oil Seperator
| 02***09 | Bolt, Hex Head M8x40 | 2 |
| 02***99 | Tube, Connection | 2 |
| 02***01 | Clip, Hose | 4 |
Z25-1-1 Induction Manifold
| 02***52 | Bolt, Hex Head M8x70 | 2 |
| 02***98 | Pipe, Breather | 1 |
| 02***99 | Tube, Connection | 2 |
Z25-3-1 Induction Manifold, Tc
| 02***52 | Bolt, Hex Head M8x70 | 8 |
| 02***97 | Gasket | 1 |
| 02***99 | Tube, Connection | 2 |
Z25-2-1 Induction Manifold
| 02***52 | Bolt, Hex Head M8x70 | 9 |
| 02***97 | Gasket | 1 |
| 02***98 | Pipe, Breather | 1 |
Z26-1-1 Exhaust Manifold
| 02***36 | Bolt, M10x25 Hex Head | 2 |
| 02***45 | Bolt, Hex Head M8x50 | 8 |
| 02***03 | Gasket | 2 |
Z26-3-1 Exhaust Manifold, Tc
| 02***45 | Bolt, Hex Head M8x50 | 8 |
| 02***02 | Gasket | 1 |
| 02***80 | Manifold, Exhaust, Turbo | 1 |
Z26-2-1 Exhaust Manifold
| 02***45 | Bolt, Hex Head M8x50 | 8 |
| 02***02 | Gasket | 1 |
| 02***03 | Gasket | 2 |
Z27-1-1 Cylinder Head, Assembly
| 02***19 | Plug | 2 |
| 02***21 | Plug | 1 |
| 02***76 | Insert, Exhaust Valve | 3 |
Z27-2-1 Cylinder Head, Assembly
| 02***19 | Plug | 2 |
| 02***21 | Plug | 1 |
| 02***75 | Head, Cylinder Assemby | 1 |
Z28-1-1 Brackets, Engine Lifting
| 02***52 | Bolt, Hex Head M8x70 | 1 |
| 02***27 | Bolt | 1 |
| 02***37 | Bracket, Engine Lifting | 2 |
Z28-2-1 Brackets, Engine Lifting
| 02***05 | Bolt, Hex Head M8x16 | 4 |
| 02***08 | Bolt, Hex Head M8x20 | 2 |
| 02***87 | Bracket, Engine Lifting | 1 |
Z29-1-1 Filter, Oil
| 02***45 | Bolt, Hex Head M8x50 | 1 |
| 02***27 | Connector | 1 |
| 02***28 | O Ring | 2 |
Z29-2-1 Oil Cooler, Filter & Pipework
| 02***45 | Bolt, Hex Head M8x50 | 1 |
| 02***28 | O Ring | 2 |
| 02***29 | O Ring | 1 |
Z30-1-1 Oil Level Dipstick
| 02***21 | Dipstick | 1 |
| 02***22 | O Ring | 1 |
| 02***23 | Plug | 1 |
Z31-1-1 Oil Sump
| 02***12 | O Ring | 8 |
| 02***15 | Strip | 2 |
| 02***16 | Washer, Sealing | 2 |
Z31-2-1 Oil Sump
| 02***08 | Bolt, Hex Head M8x20 | 26 |
| 02***11 | Sump, Oil | 1 |
| 02***12 | O Ring | 8 |
Z32-1-1 Oil Pump, & Oil Relief Valve
| 02***53 | Valve, Oil Pressure, Regulator | 1 |
| 02***24 | Gear | 1 |
| 02***25 | Pump, Oil | 1 |
Z32-2-1 Oil Pump, & Oil Relief Valve
| 02***53 | Valve, Oil Pressure, Regulator | 1 |
| 02***24 | Gear | 1 |
| 02***25 | Pump, Oil | 1 |
Z33-2-1 Flywheel Assembly
| 02***65 | Flywheel | 1 |
| 02***66 | Gear, Flywheel Ring | 1 |
| 02***67 | Bolt | 6 |
Z33-1-1 Flywheel Assembly
| 02***66 | Gear, Flywheel Ring | 1 |
| 02***67 | Bolt | 6 |
| 02***31 | Flywheel, Assembly | 1 |
Z34-1-1 Flywheel Housing
| 02***68 | Screw, Locking | 4 |
| 02***70 | Housing, Flywheel | 1 |
Z35-1-1 Camshaft, & Idler Gear
| 02***54 | Bearing | 2 |
| 02***55 | Gear, Idler | 1 |
| 02***56 | Shaft, Idler Gear | 1 |
Z35-2-1 Camshaft, & Idler Gear
| 02***54 | Bearing | 2 |
| 02***55 | Gear, Idler | 1 |
| 02***56 | Shaft, Idler Gear | 1 |
Z36-1-1 Timing Case & Covers
| 02***08 | Bolt, Hex Head M8x20 | 1 |
| 02***23 | Pin | 2 |
| 02***43 | Casing, Timing | 1 |
Z37-2-1 Piston & Con-Rod, Assemblies
| 02***36 | Bush, Small End | 1 |
| 02***37 | Bolt, Con-Rod | 2 |
| 02***38 | Bearing, Con-Rod Big End; Ss By 02/94***34 San 10***74 Mw 21-01-09, J.Banks Request | 4 |
Z37-1-1 Piston & Con-Rod, Assemblies
| 02***36 | Bush, Small End | 1 |
| 02***37 | Bolt, Con-Rod | 2 |
| 02***39 | Kit-Piston; Ss By 02/94***12 San 10***74 Mw 21-01-09, J.Banks Request | 3 |
Z37-3-1 Piston & Con-Rod, Assemblies
| 02***36 | Bush, Small End | 1 |
| 02***37 | Bolt, Con-Rod | 2 |
| 02***41 | Pin, Gudgeon | 1 |
Z38-1-1 Crankshaft Assembly
| 02***26 | Screw, Pan Head M8x40 | 2 |
| 02***27 | Housing, Bearing | 2 |
| 02***28 | Bearing, Main | 2 |
Z38-2-1 Crankshaft Assembly
| 02***08 | Bolt, Hex Head M8x20 | 7 |
| 02***25 | Crankshaft | 1 |
| 02***26 | Screw, Pan Head M8x40 | 2 |
Z38-3-1 Crankshaft Assembly, Tc
| 02***08 | Bolt, Hex Head M8x20 | 7 |
| 02***26 | Screw, Pan Head M8x40 | 2 |
| 02***28 | Bearing, Main | 3 |
Z39-2-1 Cylinder Block, Assembly
| 02***13 | Plug, Core | 9 |
| 02***14 | Plug, Core | 4 |
| 02***15 | Bearing, Main | 1 |
Z39-1-1 Cylinder Block, Assembly
| 02***13 | Plug, Core | 7 |
| 02***14 | Plug, Core | 3 |
| 02***15 | Bearing, Main | 1 |
Z43-2-1 Air Filter, Installation
| 02***05 | Bolt, Hex Head M8x16 | 4 |
| 02***84 | Bolt, Hex Head M8x25 | 2 |
| 02***76 | Hose | 1 |
Z43-1-1 Air Filter, Installation
| 32***04 | Valve, Dust | 1 |
| 32***92 | Filter, Air Assembly | 1 |
| 32***93 | Element, Air Filter | 1 |
Z45-1-1 Exhaust Silencer, Open
| 02***35 | Nut, Anti-Seize | 3 |
| 13***8Z | Bolt, M10 X 30, Flange Reduced Hex | 4 |
| 32***36 | Gasket, Turbo Outlet | 1 |
Z45-3-1 Exhaust Silencer, Canopy Build, Turbo
| 02***36 | Bolt, M10x25 Hex Head | 2 |
| 02***03 | Gasket | 1 |
| 32***50 | Tube, Exhaust Bellows | 1 |
Z45-2-1 Exhaust Silencer, Canopy Build, Nat/Aspirated
| 02***36 | Bolt, M10x25 Hex Head | 1 |
| 02***03 | Gasket | 1 |
| 32***50 | Tube, Exhaust Bellows | 1 |
Z46-1-1 Radiator & Fittings, D2009-L03, D2009-L04
| 02***13 | Bolt | 8 |
| 30***49 | Radiator, Assembly | 1 |
| 30***52 | Cap, Radiator Pressure | 1 |
Z46-12-1 Fan Guards, Td2009-L04
| 13***5D | Setscrew, M8x20 | 6 |
| 14***7D | Washer, M8 Plain | 6 |
| 14***7D | Washer, M8 Spring | 6 |
Z46-11-1 Fan Guards, D2009-L03, D2009-L04
| 13***5D | Setscrew, M8x20 | 10 |
| 14***7D | Washer, M8 Plain | 10 |
| 14***7D | Washer, M8 Spring | 10 |
Z46-2-1 Radiator & Fittings, Td2009-L04
| 02***13 | Bolt | 8 |
| 30***51 | Radiator, Assembly | 1 |
| 30***52 | Cap, Radiator Pressure | 1 |
Z48-2-1 Radiator, Hose & Pipework, Td2009-L04
| 30***57 | Clip, Hose | 4 |
| 83***72 | Hose, Top Radiator | 1 |
| 83***73 | Hose, Bottom Radiator | 1 |
Z48-1-1 Radiator, Hose & Pipework, D2009-L03, D2009-L04
| 30***57 | Clip, Hose | 4 |
| 83***70 | Hose, Top Radiatior | 1 |
| 83***71 | Hose, Bottom Radiator | 1 |
Z49-1-1 Cooling Fan
| 13***5D | Setscrew, M6 X 20mm Long | 3 |
| 14***6D | Washer, M6 Plain | 3 |
| 14***6D | Washer, Spring, M6 | 3 |
Z50-2-1 Fuel Pipes, Fuel Tank To Filter
| 32***16 | Hose, Fuel Supply | 2 |
| 32***64 | Plug, Male 3/8"Bsp, Socket Head | 1 |
| 32***65 | Adapter, 3/8"F 6mm Tail | 1 |
Z50-1-1 Fuel Pipes, Fuel Tank To Filter
| 32***16 | Hose, Fuel Supply | 1 |
| 32***17 | Hose, Fuel Return | 1 |
| 32***65 | Adapter, 3/8"F 6mm Tail | 1 |
Z51-11-1 Filter, Fuel Sedimenter, (Racor)
| 32***09 | Filter, Fuel, Assembly | 1 |
| 32***10 | Element, Fuel Filter | 1 |
| 32***41 | O Ring | 1 |
Z57-2-1 Engine Oil Drain
| 14***11 | Seal, Bonded | 1 |
| 16***54 | Adapter | 1 |
| 22***03 | Clip, Jubilee | 2 |
Z57-1-1 Engine Oil Drain
| 14***11 | Seal, Bonded | 1 |
| 16***54 | Adapter | 1 |
| 22***03 | Clip, Jubilee | 2 |
Z60-7-1 Lifting Bracket, (Optional)
| 13***8D | Setscrew, M12 X 30 | 4 |
| 13***3D | Nut, M12 | 4 |
| 14***9D | Washer, M12 | 8 |
Z60-3-1 Base & Fittings
| 13***5D | Setscrew, M8x20 | 0 |
| 13***5D | Setscrew, M10 X 20 | 0 |
| 13***3D | Nut, M6 Lock | 0 |
Z60-4-1 Base & Fittings
| 13***5D | Setscrew, M8x20 | 0 |
| 13***5D | Setscrew, M10 X 20 | 0 |
| 13***3D | Nut, M6 Lock | 0 |
Z60-11-1 Fuel Tank
| 32***18 | Cap, Fuel Tank | 1 |
| 32***63 | Tank, Fuel,Plastic | 1 |
| 32***64 | Plug, Male 3/8"Bsp, Socket Head | 1 |
Z60-1-1 Base & Fittings
| 13***5D | Setscrew, M8x20 | 0 |
| 13***5D | Setscrew, M10 X 20 | 0 |
| 13***3D | Nut, M6 Lock | 0 |
Z60-2-1 Base & Fittings
| 13***5D | Setscrew, M8x20 | 0 |
| 13***5D | Setscrew, M10 X 20 | 0 |
| 13***3D | Nut, M6 Lock | 0 |
Z61-22-1 Canopy Soundproofing
| 32***11 | Kit-Panel, Foam Backed, Radiator End Cap | 1 |
| 32***12 | Kit-Panel, Foam Backed, Control Panel | 1 |
| 32***13 | Kit-Panel, Foam Backed, Centre Section | 1 |
Z61-2-1 Canopy Assembly, G27r/G30q/G33q
| 13***5D | Setscrew, M8x20 | 28 |
| 13***3D | Nut, Self Lock M8 | 4 |
| 14***7D | Washer, M8 Plain | 32 |
Z61-1-1 Canopy Assembly, G17q/G22q
| 13***5D | Setscrew, M8x20 | 28 |
| 13***3D | Nut, Self Lock M8 | 4 |
| 14***7D | Washer, M8 Plain | 32 |
Z61-21-1 Canopy Soundproofing
| 32***10 | Kit-Panel, Foam Backed, Centre Section | 1 |
| 32***11 | Kit-Panel, Foam Backed, Radiator End Cap | 1 |
| 32***12 | Kit-Panel, Foam Backed, Control Panel | 1 |
Z62-11-1 Alternator, Accessories
| 32***29 | Unit, Current Transformer | 1 |
| 32***31 | Kit, Voltage Monitor | 1 |
| 32***32 | Kit, Fuse 1a (10 Off) | 1 |
Z62-3-1 Alternator, Bci 184 F16
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***09 | Bearing, Nde | 1 |
Z62-4-1 Alternator, Bci 184 G16
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***09 | Bearing, Nde | 1 |
Z62-2-1 Alternator, Bci 184 E16
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***09 | Bearing, Nde | 1 |
Z62-1-1 Alternator, Bci 164 D16
| 32***06 | Alternator | 1 |
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
Z63-54-1 Panel, Load Transfer Atp2-110 ( 2 Wire Digital )
| 32***53 | Panel, Load Transfer, Atp2-110a 2wire Digi | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-25-1 Panel, Load Transfer Atp7-125 ( 14 Wire Digital )
| 32***41 | Panel, Load Transfer, Atp7-125a 14 Wire Di | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-24-1 Panel, Load Transfer Atp7-110 ( 14 Wire Digital )
| 32***40 | Panel, Load Transfer, Atp7-110a 14 Wire Di | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-2-1 Control & Breaker, Box Assembly
| 13***5D | Screw, M5x20 | 15 |
| 13***3D | Setscrew | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 4 |
Z63-21-1 Panel, Load Transfer Atp7-40 (14 Wire Digital)
| 32***38 | Panel, Load Transfer, Atp7-40 14 Wire Digi | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-11-1 Control Unit, Box & Panel Assemblies
| 13***3D | Setscrew | 4 |
| 13***5D | Setscrew, M6 X 20mm Long | 4 |
| 14***6D | Washer, M6 Plain | 8 |
Z63-22-1 Panel, Load Transfer Atp7-60 (14 Wire Digital)
| 32***39 | Panel, Load Transfer, Atp7-60a 14wire Digi | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-23-1 Panel, Load Transfer Atp7-90 ( 14 Wire Digital )
| 32***15 | Panel | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-52-1 Panel, Load Transfer Atp2-60 ( 2 Wire Digital )
| 32***51 | Panel, Load Transfer, Atp2-60a 2wire Digit | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-53-1 Panel, Load Transfer Atp2-90 ( 2 Wire Digital )
| 32***52 | Panel, Load Transfer, Atp2-90a 2wire Digit | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-55-1 Panel, Load Transfer Atp2-125 ( 2 Wire Digital )
| 32***54 | Panel, Load Transfer, Atp2-125a 2wire Digi | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-27-1 Panel, Load Transfer Atp7-250 ( 14 Wire Digital )
| 32***43 | Panel, Load Transfer, Atp7-250a 14 Wire Di | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-3-1 Control & Breaker, Box Assembly
| 13***5D | Screw, M5x20 | 15 |
| 13***3D | Setscrew | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 4 |
Z63-1-1 Control & Breaker, Box Assembly
| 13***5D | Screw, M5x20 | 15 |
| 13***3D | Setscrew | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 4 |
Z63-56-1 Panel, Load Transfer Atp2-160 ( 2 Wire Digital )
| 32***55 | Panel, Load Transfer, Atp2-160a 2wire Digi | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-51-1 Panel, Load Transfer Atp2-40 (2 Wire Digital )
| 32***50 | Panel, Load Transfer, Atp2-40a 2wire Digit | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z63-26-1 Panel, Load Transfer Atp7-160 ( 14 Wire Digital )
| 32***42 | Panel, Load Transfer, Atp7-160a 14 Wire Di | 1 |
| 32***36 | Bulb, Red | 1 |
| 32***37 | Bulb, Green | 1 |
Z64-11-1 Circuit, Breaker Control, Box Assembly
| 13***5D | Setscrew, M6 X 20mm Long | 65 |
| 13***5D | Setscrew, M8x20 | 28 |
| 14***6D | Washer, M6 Plain | 65 |
Z65-1-1 Engine Electrics
| 13***5D | Setscrew, M8x20 | 1 |
| 13***5D | Screw, M12 X 20mm Long | 2 |
| 13***3Z | Screw, M4 X 16 | 4 |
Z65-3-1 Engine, Speed Group
| 32***25 | Sensor, Engine Speed | 1 |
Z65-2-1 Engine Electrics
| 13***5D | Setscrew, M8x20 | 1 |
| 13***5D | Screw, M12 X 20mm Long | 2 |
| 13***3Z | Screw, M4 X 16 | 4 |
Z65-11-1 Battery Installation
| 32***02 | Nut, Wing | 2 |
| 32***23 | Lead, Battery | 1 |
| 32***72 | Battery, Dry | 1 |
Frequently asked questions
What engine does the JCB G30 use?
The JCB G30 uses the TD2009 L04 engine assembly.
What is the operating weight of the JCB G30?
Operating weight is not documented for the JCB G30 generating power unit in the available sources.
What model replaced the JCB G30?
The specific successor model to the JCB G30 is not documented in the available sources.
What G30 owners discuss
What engine powers the JCB 30PLUS mini excavator and what are its key performance specs?
The JCB 30PLUS is powered by a water-cooled Perkins 403D-15 engine meeting BS III emissions standards. It delivers 24.7 hp and 96 kN of torque at 1800 rpm, designed for operation in hard and compact soils.
What are the typical undercarriage and stability characteristics of the JCB 30PLUS?
The machine has an operating weight of 2870 kg, providing superior stability and balance during forest activities and material handling. It features a robust rear cast counterweight and recessed bonnets for enhanced protection and durability in confined spaces.
How does the hydraulic system and digging performance behave on the JCB 30PLUS?
The advanced hydraulic system ensures smooth operations without sacrificing performance. It supports precise digging with a maximum digging depth of 3050 mm, facilitating efficient excavation and material handling for utility and construction projects.
What are the common operational considerations regarding fuel and maintenance for the JCB 30PLUS?
The machine is equipped with a 56-liter fuel tank to minimize downtime and allow continuous operation over long hours. Regular maintenance of the fuel lines, injector, and pump is recommended to prevent blockages or leaks that could cause starting difficulties or power loss.
What electrical or sensor issues are associated with JCB engines in general?
JCB engine owners may face starting difficulties due to battery issues or complex fuel system faults. Control module malfunctions can cause power loss, and unusual engine noises may indicate underlying problems. Diagnosing these requires checking the ignition switch, fuses, relays, and using a JCB equipment diagnostic tool.
What should be checked when buying a used JCB 30PLUS?
Inspect the hydraulic cylinders for defects, as repair costs can exceed inspection fees. Verify the condition of the rear cast counterweight and recessed bonnets for damage. Check the Perkins 403D-15 engine for oil leaks and ensure the 56-liter fuel tank and lines are free of blockages. Confirm the functionality of cab-mounted work lights and the swing speed mechanism.
What safety features are standard on the JCB 30PLUS canopy?
The machine features a ROPS/TOPS (Roll Over Protective Structure/Top Protective Structure) canopy to enhance operator safety. Open canopy configurations offer limited weather protection.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Jcb G30. Related factory variants of the same model family:
G30G30
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