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Jcb G30RX(JCB GENERATOR)
Maintenance schedule, common problems & OEM parts breakdown
The JCB G30RX is a stationary diesel generator set within the JCB Rental Range, designed for prime power and standby applications. It delivers 33.5 to 37 kVA output at 50 Hz. The machine is packaged in open, canopy, or container configurations to suit various site requirements. It belongs to the G-series generator lineup, which includes models such as the G20RX and G40RX. The G30RX is part of the heavy-duty power systems range, distinct from the smaller compact generators and the larger Premier range units.
The G30RX generation utilizes engines sourced from established manufacturers such as JCB Dieselmax, Scania, or Cummins, depending on the specific serial range and market. This model is part of the 20-200 kVA rental diesel generator series. It matters in the used and parts market because it shares commonality with the broader G-series rental fleet (G20RX through G100RX), allowing for shared service protocols and component availability. The machine's design for minimal fuel consumption and robust canopy protection makes it a staple in temporary power supply fleets.
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 G30RX(JCB GENERATOR) specifications
Engine
| Engine Model | JCB 4.4L series (identified by displacement code 'S' in engine serial prefix) |
| Power Output (Prime) | 49 kWm (66 hp) |
| Power Output (Standby) | 54 kWm (72 hp) |
| Speed | 1500 rpm |
| Emissions Tier | Tier 4i (identified by engine code 'H' in serial prefix) |
Weights
| Operating Weight | Not documented for this exact serial range — verify with your dealer |
| Shipping Weight | Not documented for this exact serial range — verify with your dealer |
| Ground Pressure | Not documented for this exact serial range — verify with your dealer |
Dimensions
| Transport Length | Not documented for this exact serial range — verify with your dealer |
| Transport Width | Not documented for this exact serial range — verify with your dealer |
| Transport Height | Not documented for this exact serial range — verify with your dealer |
| Track Gauge / Wheelbase | Not documented for this exact serial range — verify with your dealer |
| Ground Clearance | Not documented for this exact serial range — verify with your dealer |
Performance
| Travel Speeds | Not documented for this exact serial range — verify with your dealer |
| Lift/Dig/Dump/Drawbar | Not documented for this exact serial range — verify with your dealer |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Fuel Tank Capacity | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System Capacity | Not documented for this exact serial range — verify with your dealer |
| Engine Oil Capacity | Not documented for this exact serial range — verify with your dealer |
| Cooling System Capacity | Not documented for this exact serial range — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Jcb G30RX(JCB GENERATOR) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the G30RX(JCB GENERATOR) beyond the schedule
Predictive Maintenance & Fluid Analysis
At the 500-hour interval, collect oil samples from the engine, hydraulic system, axle, and final drive to establish a baseline. Compare subsequent samples against this baseline to detect bearing wear or contamination early. Inspect the hydraulic return filter magnet for metallic debris before disposal. Monitor the engine oil level daily via the dipstick. Check the hydraulic tank sight gauge and coolant expansion tank level every 10 hours. Use JCB Engine Oil Special or equivalent 15W-40 diesel oil meeting API specifications. Replace the primary and secondary fuel filters at 500 hours to protect common-rail injectors.
Corrective & Common Repairs
Address torque reduction faults by scanning the ECM with JCB ServiceMaster to identify injector drift or sensor errors. Replace worn brake discs and service immersed brakes at the 2000-hour mark. Inspect turbocharger shaft play and wastegate function during the 1000-hour service. Check alternator and starter load tests to prevent electrical strand-outs. Grease all pivot points on the generator frame and engine mounts regularly. Inspect hoses and cylinders for chafing or pinhole seepage during daily walkarounds. Replace the air filter primary element when the restriction indicator signals.
Overhaul & Rebuild Points
The 2000-hour service is the critical deep-service interval. Drain the hydraulic tank completely, clean the tank interior, and refill with JCB-spec hydraulic oil. Inspect structural components including the boom, arm, and chassis for cracking or unauthorized welding. Measure swing ring play using dial indicators to assess bearing wear. Check injector spray patterns via the diagnostic tool and replace as required. Service the cab HVAC system, including A/C pressure and the cabin filter. Perform a full structural audit to determine if the machine is on track for extended service life or requires major component replacement.
Seasonal & Environment Servicing
In extremely hot or cold environments, change the oil and oil filter every year or after every 100 hours of run time. Ensure the coolant system uses JCB-spec long-life coolant to prevent silicate separation and corrosion. Check the battery electrolyte level on non-sealed units during the 100-hour weekly check. Inspect drive belts for tension and wear, especially in dusty environments. Verify the integrity of the powder-coated canopy for rust protection. Monitor fuel quality to prevent water contamination in cold climates. Use the LiveLink telematics system to monitor engine operation across load bands and fuel levels.
G30RX(JCB GENERATOR) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 02/971534 | Element, Fuel Filter, Cartridge Type | Fuel system service | Check fitment → |
| 332/Z1631 | Kit, Fuel Filter Racor, 4tnv98/98t Gge Ins + Dec | Fuel system service | Check fitment → |
| 02/971616 | Filter, Fuel | Fuel system service | Check fitment → |
| 02/971874 | Filter, Fuel Assembly | Fuel system service | Check fitment → |
| 02/971876 | Bowl, Fuel Sedimenter Filter | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
G30RX(JCB GENERATOR) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| P0087 | Fuel rail/system pressure too low | Leaking fuel lines, faulty lift pump, or restricted fuel filter | Check fuel pressure at the rail; inspect fuel filter and inlet lines for restrictions or leaks |
| P0088 | Fuel rail/system pressure too high | Faulty pressure regulator, stuck metering valve, or blockage in return line | Inspect fuel return lines for blockage; test pressure regulator operation |
| P0115 | Engine Coolant Temperature (ECT) Sensor Circuit Malfunction | Faulty coolant temperature sensor, open/shorted wiring, or poor connector contact | Check sensor resistance at operating temperature; inspect wiring harness for damage |
| P0190 | Fuel Pressure Sensor 'A' Circuit Malfunction | Faulty high-pressure fuel sensor, open circuit, or short to ground/battery | Verify sensor voltage and signal; inspect connector pins for corrosion or looseness |
| P0200 | Injector Circuit Malfunction (General) | Open or shorted injector wiring harness, blown fuse, or faulty injector coil | Check injector resistance; inspect wiring harness for chafing or damage near moving parts |
| P0335 | Crankshaft Position Sensor 'A' Circuit No Signal | Failed crank sensor, damaged tone wheel, or broken wiring connection | Check sensor air gap and signal output; inspect wiring for breaks or corrosion |
| P0336 | Crankshaft Position Sensor 'A' Circuit Range/Performance | Intermittent signal, dirty sensor tip, or timing gear wear | Clean sensor tip; check for debris on tone wheel; verify sensor signal stability |
| P0340 | Camshaft Position Sensor Circuit Malfunction | Faulty cam sensor, open circuit, or incorrect timing | Check sensor signal and wiring; verify engine timing alignment |
| P0401 | Exhaust Gas Recirculation (EGR) Flow Insufficient Detected | Clogged EGR passage, faulty EGR valve, or carbon buildup | Inspect EGR valve operation and passages for carbon blockage; clean or replace as needed |
| P0420 | Catalyst System Efficiency Below Threshold | Degraded catalytic converter or faulty oxygen sensor | Check oxygen sensor readings; inspect exhaust system for leaks or damage |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
G30RX(JCB GENERATOR) attachments & work tools
Rental Range Generators (RX)
The JCB G30RX is a 30 kVA class rental generator within the RX series, covering serial numbers the OEM part reference through the OEM part reference. It is available in both 50 Hz (code the OEM part reference) and 60 Hz (code the OEM part reference) configurations. The machine is designed for prime power and standby applications with a fuel-optimized design.
Engine & Powertrain
The G30RX utilizes a JCB Diesel by Kohler engine, consistent with the compact generator range specifications. The powertrain is integrated into a stationary powerpack configuration suitable for both open and canopy installations. The system is engineered for high efficiency and low noise operation in harsh environments.
Enclosure & Mounting
The G30RX is offered in open, canopy, and container types to suit various site requirements. The canopy provides acoustic insulation and weather protection for the power system. The unit is built with heavy-gauge steel construction for durability and long productive life.
Electrical & Control Options
Configurable options include synchronizing and auto main failure (AMF) control panels for grid-tied or backup applications. LiveLink telematics can be integrated to monitor fuel consumption, engine health, and exported power tracking. The system supports 24x7 operation with real-time performance data.
Fuel & Filtration
The generator features a 3-stage fuel filtration system to ensure optimal engine performance and longevity. Extended fuel tanks or connections for external bulk fuel tanks are available as options. The design minimizes fuel consumption to reduce operating costs and greenhouse gas emissions.
All G30RX(JCB GENERATOR) assemblies by section
Every catalogued assembly group for the Jcb G30RX(JCB GENERATOR). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Z Jcb Generator Set
Jcb : G30rx(Jcb Generator) : Z Jcb Generator Set : Z00 Generator Sets
Z1-4-20 Crankshaft, Bearings, Pistons & Con-Rods
| 02***07 | Dowel, . | 1 |
| 02***10 | Key, . | 1 |
| 02***21 | Gear, . | 1 |
Z1-6-10 Timing Case & Covers
| 02***18 | Housing | 1 |
| 02***86 | Nut | 3 |
| 02***06 | Bolt, M6 X 16 | 2 |
Z1-6-40 Timing Case & Covers
| 02***52 | Bolt, M8 X 45 | 3 |
| 02***06 | Bolt, M6 X 16 | 2 |
| 02***07 | Dowel, . | 4 |
Z1-8-20 Flywheel Housing, & Sump
| 02***21 | Bolt, M8 X 35 | 3 |
| 02***52 | Bolt, M8 X 45 | 24 |
| 02***07 | Dowel, . | 4 |
Z1-1-1 Engine, Assembly, 3tnv76ggeh
| 02***27 | Engine, Assembly Complete | 1 |
Z1-3-20 Cylinder Block, Assembly
| 02***32 | Plug, . | 3 |
| 02***04 | Plug, . | 1 |
| 02***05 | Plug, . | 1 |
Z1-4-30 Crankshaft, Bearings, Pistons & Con-Rods
| 02***07 | Dowel, . | 1 |
| 02***10 | Key, . | 1 |
| 02***21 | Gear, . | 1 |
Z1-8-40 Flywheel Housing, & Sump
| 02***31 | Bolt, M8 X 12 | 16 |
| 02***07 | Dowel, . | 2 |
| 02***46 | Plug, . | 1 |
Z1-7-10 Camshaft, &, Gears
| 02***21 | Bolt, M8 X 40 | 3 |
| 02***05 | Tappet, . | 6 |
| 02***08 | Plate | 1 |
Z1-7-30 Camshaft, &, Gears
| 02***21 | Bolt, M8 X 40 | 3 |
| 02***05 | Tappet, . | 8 |
| 02***08 | Plate | 1 |
Z1-8-10 Flywheel Housing, & Sump
| 02***21 | Bolt, M8 X 35 | 3 |
| 02***52 | Bolt, M8 X 45 | 20 |
| 02***07 | Dowel, . | 4 |
Z1-8-50 Pump, Oil, Sump Extraction
| 33***58 | Pump, Sump Oil Extraction | 1 |
| 33***59 | Bracket, Oil Pump Support | 1 |
| 33***60 | Hose, Oil Extraction Pump | 1 |
Z1-4-40 Crankshaft, Bearings, Pistons & Con-Rods
| 02***10 | Key, . | 1 |
| 02***25 | Bolt, . | 1 |
| 02***50 | Bearing, Con Rod Std | 4 |
Z1-6-50 Timing Case & Covers
| 02***52 | Bolt, M8 X 45 | 3 |
| 02***06 | Bolt, M6 X 16 | 2 |
| 02***07 | Dowel, . | 4 |
Z1-6-20 Timing Case & Covers
| 02***18 | Housing | 1 |
| 02***86 | Nut | 3 |
| 02***06 | Bolt, M6 X 16 | 2 |
Z1-6-1 Timing Case & Covers
| 02***84 | Bolt, M6 X 12 | 1 |
| 02***86 | Nut | 3 |
| 02***06 | Bolt, M6 X 16 | 6 |
Z1-8-1 Flywheel Housing, & Sump
| 02***22 | Plug, M16 | 1 |
| 02***25 | Seal, Washer | 1 |
| 02***52 | Bolt, M8 X 45 | 11 |
Z1-1-10 Engine, Assembly, 3tnv88ggeh
| 02***28 | Engine, Assembly Complete | 1 |
Z1-3-40 Cylinder Block, Assembly
| 02***04 | Plug, . | 1 |
| 02***08 | Plug, 30 | 8 |
| 02***19 | Plug, . | 3 |
Z1-3-30 Cylinder Block, Assembly
| 02***32 | Plug, . | 3 |
| 02***04 | Plug, . | 1 |
| 02***05 | Plug, . | 1 |
Z1-1-40 Engine, Assembly, 4tnv98ggeh
| 02***31 | Engine, Assembly Complete | 1 |
Z1-7-40 Camshaft, &, Gears
| 02***22 | Bolt, M8 X 55 | 3 |
| 02***59 | Bolt, M8 X 16 | 2 |
| 02***05 | Tappet, . | 8 |
Z1-1-20 Engine, Assembly, 4tnv88ggeh
| 02***29 | Engine, Assembly Complete | 1 |
Z1-7-20 Camshaft, &, Gears
| 02***21 | Bolt, M8 X 40 | 3 |
| 02***05 | Tappet, . | 8 |
| 02***08 | Plate | 1 |
Z1-7-50 Camshaft, &, Gears
| 02***22 | Bolt, M8 X 55 | 3 |
| 02***59 | Bolt, M8 X 16 | 2 |
| 02***05 | Tappet, . | 8 |
Z1-3-10 Cylinder Block, Assembly
| 02***32 | Plug, . | 3 |
| 02***04 | Plug, . | 1 |
| 02***05 | Plug, . | 1 |
Z1-4-10 Crankshaft, Bearings, Pistons & Con-Rods
| 02***07 | Dowel, . | 1 |
| 02***10 | Key, . | 1 |
| 02***21 | Gear, . | 1 |
Z1-4-1 Crankshaft, Bearings, Pistons & Con-Rods
| 02***04 | Key, 4 X 12 | 1 |
| 02***07 | Dowel, . | 4 |
| 02***26 | Bolt, . | 5 |
Z1-6-30 Timing Case & Covers
| 02***86 | Nut | 3 |
| 02***06 | Bolt, M6 X 16 | 2 |
| 02***22 | Bolt, M8 X 55 | 12 |
Z1-3-1 Cylinder Block, Assembly
| 02***32 | Plug, . | 1 |
| 02***05 | Plug, . | 1 |
| 02***07 | Plug, 12 | 1 |
Z1-1-30 Engine, Assembly, 4tnv84tggeh
| 02***30 | Engine, Assembly Complete | 1 |
Z1-4-50 Crankshaft, Bearings, Pistons & Con-Rods
| 02***10 | Key, . | 2 |
| 02***25 | Bolt, . | 1 |
| 02***50 | Bearing, Con Rod Std | 4 |
Z1-7-1 Camshaft, &, Gears
| 02***84 | Bolt, M6 X 12 | 2 |
| 02***34 | Tappet | 6 |
| 02***35 | Rod, Push | 6 |
Z1-3-50 Cylinder Block, Assembly
| 02***04 | Plug, . | 1 |
| 02***08 | Plug, 30 | 8 |
| 02***19 | Plug, . | 3 |
Z1-1-50 Engine, Assembly, 4tnv98tggeh
| 02***32 | Engine, Assembly Complete | 1 |
Z2-1-30 Cylinder Head, & Rocker Assembly
| 02***44 | Bolt, M8 X 25 | 3 |
| 02***59 | Bolt, M8 X 16 | 4 |
| 02***29 | Cap, Filler | 1 |
Z2-1-10 Cylinder Head, & Rocker Assembly
| 02***21 | Bolt, M8 X 35 | 3 |
| 02***44 | Bolt, M8 X 25 | 2 |
| 02***59 | Bolt, M8 X 16 | 4 |
Z2-1-20 Cylinder Head, & Rocker Assembly
| 02***21 | Bolt, M8 X 35 | 4 |
| 02***44 | Bolt, M8 X 25 | 3 |
| 02***59 | Bolt, M8 X 16 | 4 |
Z2-1-40 Cylinder Head, & Rocker Assembly
| 02***86 | Nut | 2 |
| 02***21 | Bolt, M8 X 40 | 2 |
| 02***30 | Stud, M8 X 22 | 2 |
Z2-1-50 Cylinder Head, & Rocker Assembly
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***86 | Nut | 2 |
| 02***21 | Bolt, M8 X 40 | 2 |
Z2-1-1 Cylinder Head, & Rocker Assembly
| 02***44 | Cap, Valve | 6 |
| 02***52 | Bolt, M6 X 20 | 3 |
| 02***21 | Bolt, M8 X 40 | 3 |
Z3-3-50 Air Induction, &, Air Filter
| 02***52 | Bolt, M8 X 45 | 8 |
| 02***64 | Filter, Air | 1 |
| 02***22 | Bolt, M8 X 80 | 2 |
Z3-2-40 Exhaust System
| 02***86 | Nut | 2 |
| 02***02 | Bolt, M8x22 | 4 |
| 02***32 | Bolt, M8 X 80 | 6 |
Z3-3-10 Air Induction, &, Air Filter
| 02***21 | Bolt, M8 X 40 | 2 |
| 02***49 | Clip, . | 2 |
| 02***97 | Gasket, . | 1 |
Z3-2-10 Exhaust System
| 02***86 | Nut | 2 |
| 02***02 | Bolt, M8x22 | 4 |
| 02***04 | Gasket, . | 1 |
Z3-2-50 Exhaust System
| 02***32 | Bolt, M8 X 80 | 8 |
| 02***72 | Stud, M8 X 20 | 4 |
| 02***83 | Gasket, Exhaust Manifold | 1 |
Z3-2-30 Exhaust System
| 02***02 | Bolt, M8x22 | 4 |
| 02***10 | Gasket, Exhaust Manifold | 1 |
| 02***65 | Manifold, Exhaust | 1 |
Z3-3-1 Air Induction, &, Air Filter
| 02***83 | Filter, Element, Main | 1 |
| 02***28 | Hose, Air Intake | 1 |
| 02***29 | Filter, Air Assembly | 1 |
Z3-2-20 Exhaust System
| 02***86 | Nut | 2 |
| 02***02 | Bolt, M8x22 | 4 |
| 02***32 | Bolt, M8 X 80 | 6 |
Z3-3-30 Air Induction, &, Air Filter
| 02***21 | Bolt, M8 X 35 | 4 |
| 02***97 | Gasket, . | 1 |
| 02***00 | Element, Air Filter Safety | 1 |
Z3-3-20 Air Induction, &, Air Filter
| 02***21 | Bolt, M8 X 40 | 2 |
| 02***49 | Clip, . | 2 |
| 02***97 | Gasket, . | 1 |
Z3-3-40 Air Induction, &, Air Filter
| 02***52 | Bolt, M8 X 45 | 8 |
| 02***21 | Bolt, M8 X 40 | 2 |
| 02***64 | Filter, Air | 1 |
Z3-2-1 Exhaust System
| 02***02 | Bolt, M8x22 | 4 |
| 02***45 | Manifold, Exhaust | 1 |
| 02***46 | Gasket, Exhaust Manifold | 1 |
Z4-1-20 Cooling Water System, Fan & Belt
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***34 | Plug, Screw 1/8 Npt | 1 |
| 02***52 | Bolt, M8 X 45 | 1 |
Z4-1-10 Cooling Water System, Fan & Belt
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***34 | Plug, Screw 1/8 Npt | 1 |
| 02***52 | Bolt, M8 X 45 | 1 |
Z4-1-30 Cooling Water System, Fan & Belt
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***34 | Plug, Screw 1/8 Npt | 1 |
| 02***52 | Bolt, M8 X 45 | 1 |
Z4-1-1 Cooling Water System, Fan & Belt
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***48 | Bolt, M6 X 45 | 4 |
| 02***03 | Gasket, . | 1 |
Z4-1-40 Cooling Water System, Fan & Belt
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***84 | Bolt, M6 X 12 | 1 |
| 02***52 | Bolt, M6 X 20 | 4 |
Z4-1-50 Cooling Water System, Fan & Belt
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***84 | Bolt, M6 X 12 | 1 |
| 02***52 | Bolt, M6 X 20 | 4 |
Z5-1-50 Engine, Lubrication, & Sump
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***41 | Tie, . | 1 |
| 02***59 | Bolt, M8 X 16 | 1 |
Z5-1-30 Engine, Lubrication, & Sump
| 02***21 | Bolt, M8 X 35 | 2 |
| 02***41 | Tube, Dipstick | 1 |
| 02***42 | Gasket, . | 1 |
Z5-1-20 Engine, Lubrication, & Sump
| 02***16 | Nut, M6 | 1 |
| 02***21 | Bolt, M8 X 35 | 2 |
| 02***41 | Tube, Dipstick | 1 |
Z5-1-40 Engine, Lubrication, & Sump
| 02***31 | Bolt, M8 X 12 | 4 |
| 02***59 | Bolt, M8 X 16 | 1 |
| 02***41 | Tube, Dipstick | 1 |
Z5-1-1 Engine, Lubrication, & Sump
| 02***19 | Bolt, M6 X 10 | 2 |
| 02***41 | Tube, Dipstick | 1 |
| 02***45 | Switch, Oil Pressure | 1 |
Z5-1-10 Engine, Lubrication, & Sump
| 02***16 | Nut, M6 | 1 |
| 02***21 | Bolt, M8 X 35 | 2 |
| 02***41 | Tube, Dipstick | 1 |
Z6-6-10 Fuel Pipes, &, Filters
| 02***76 | Clamp | 4 |
| 02***34 | Element, Fuel Filter, Cartridge Type | 1 |
| 02***40 | Pump, Assembly | 1 |
Z6-4-40 Kit, Fuel Tank To Filter, (Racor) 4tnv98
| 33***31 | Kit, Fuel Filter Racor, 4tnv98/98t Gge Ins + Dec | 1 |
| 33***32 | Filter, Racor | 1 |
| 33***33 | Tube | 0 |
Z6-3-30 Fuel System
| 02***16 | Clamp, Hose | 2 |
| 02***50 | Seal, Washer | 1 |
| 02***21 | Pipe, Clamp | 2 |
Z6-2-40 Governor Assembly
| 02***25 | Seal, Washer | 1 |
| 02***78 | Bolt, M6 X 25 | 8 |
| 02***32 | Bolt, M6 X 40 | 2 |
Z6-3-1 Fuel System
| 02***76 | Clamp | 2 |
| 02***26 | Washer, Seal | 5 |
| 02***46 | Clamp, . | 2 |
Z6-2-1 Governor Assembly
| 02***52 | Bolt, M6 X 14 | 2 |
| 02***19 | Bolt, M6 X 10 | 4 |
| 02***26 | Washer, Seal | 2 |
Z6-6-1 Fuel Pipes, &, Filters
| 02***76 | Clamp | 4 |
| 02***59 | Bolt, M8 X 16 | 2 |
| 02***26 | Washer, Seal | 2 |
Z6-3-10 Fuel System
| 02***16 | Clamp, Hose | 6 |
| 02***22 | Bolt, M4x14 | 4 |
| 02***23 | Pipe, Clamp | 2 |
Z6-6-40 Fuel Pipes, &, Filters
| 02***16 | Clamp, Hose | 2 |
| 02***41 | Tie, . | 1 |
| 02***76 | Clamp | 3 |
Z6-1-1 Fuel Injection Pump
| 02***32 | Pump, Fuel Lift | 1 |
| 02***10 | Seal | 1 |
| 02***11 | Plate, Cover | 1 |
Z6-6-30 Fuel Pipes, &, Filters
| 02***76 | Clamp | 4 |
| 02***34 | Element, Fuel Filter, Cartridge Type | 1 |
| 02***40 | Pump, Assembly | 1 |
Z6-1-50 Fuel Injection Pump
| 02***50 | Bolt, M10 X 20 | 1 |
| 02***59 | Bolt, M8 X 16 | 2 |
| 02***87 | O Ring, . | 1 |
Z6-3-40 Fuel System
| 02***06 | Bolt, M6 X 16 | 2 |
| 02***21 | Pipe, Clamp | 1 |
| 02***22 | Bolt, M4x14 | 3 |
Z6-1-30 Fuel Injection Pump
| 02***59 | Bolt, M8 X 16 | 1 |
| 02***87 | O Ring, . | 1 |
| 02***26 | Washer, Seal | 5 |
Z6-3-20 Fuel System
| 02***16 | Clamp, Hose | 8 |
| 02***22 | Bolt, M4x14 | 4 |
| 02***23 | Pipe, Clamp | 1 |
Z6-1-10 Fuel Injection Pump
| 02***59 | Bolt, M8 X 16 | 1 |
| 02***87 | O Ring, . | 1 |
| 02***26 | Washer, Seal | 5 |
Z6-2-10 Governor Assembly
| 02***52 | Bolt, M6 X 20 | 10 |
| 02***52 | Bolt, M6 X 14 | 6 |
| 02***21 | Cap, . | 1 |
Z6-1-40 Fuel Injection Pump
| 02***50 | Bolt, M10 X 20 | 1 |
| 02***59 | Bolt, M8 X 16 | 2 |
| 02***87 | O Ring, . | 1 |
Z6-6-50 Fuel Pipes, &, Filters
| 02***16 | Clamp, Hose | 2 |
| 02***41 | Tie, . | 1 |
| 02***76 | Clamp | 3 |
Z6-3-50 Fuel System
| 02***06 | Bolt, M6 X 16 | 2 |
| 02***21 | Pipe, Clamp | 1 |
| 02***22 | Bolt, M4x14 | 3 |
Z6-6-20 Fuel Pipes, &, Filters
| 02***76 | Clamp | 4 |
| 02***34 | Element, Fuel Filter, Cartridge Type | 1 |
| 02***40 | Pump, Assembly | 1 |
Z7-2-1 Turbo Pipework
| 02***16 | Nut, M6 | 1 |
| 02***31 | Bolt, M8 X 12 | 1 |
| 02***06 | Bolt, M6 X 16 | 2 |
Z7-2-10 Turbo Pipework
| 02***31 | Bolt, M8 X 12 | 4 |
| 02***06 | Bolt, M6 X 16 | 2 |
| 02***22 | Spring, Pin | 4 |
Z7-1-10 Turbocharger
| 02***86 | Nut | 4 |
| 02***02 | Bolt, M8x22 | 4 |
| 02***00 | Turbocharger, Rhf5 | 1 |
Z7-1-1 Turbocharger
| 02***86 | Nut | 5 |
| 02***70 | Turbocharger, Rhf4 | 1 |
| 02***71 | Gasket | 1 |
Z8-1-50 Gasket Sets
| 02***03 | Gasket, . | 1 |
| 02***46 | Gasket, . | 2 |
| 02***38 | O Ring, . | 2 |
Z8-1-40 Gasket Sets
| 02***03 | Gasket, . | 1 |
| 02***46 | Gasket, . | 2 |
| 02***38 | O Ring, . | 2 |
Z8-1-10 Gasket Sets
| 02***03 | Gasket, . | 1 |
| 02***46 | Gasket, . | 2 |
| 02***32 | O Ring, . | 4 |
Z8-1-20 Gasket Sets
| 02***03 | Gasket, . | 1 |
| 02***46 | Gasket, . | 2 |
| 02***32 | O Ring, . | 4 |
Z8-1-30 Gasket Sets
| 02***03 | Gasket, . | 1 |
| 02***46 | Gasket, . | 2 |
| 02***32 | O Ring, . | 4 |
Z8-1-1 Gasket Sets
| 02***25 | Seal, Washer | 1 |
| 02***03 | Gasket, . | 1 |
| 02***38 | Nozzle, Protection | 3 |
Z10-1-10 Starter Motor
| 02***45 | Motor, Starter | 1 |
Z10-2-20 Alternator
| 02***39 | Alternator | 1 |
Z10-1-1 Starter Motor
| 02***15 | Motor, Starter | 1 |
| 33***74 | Screw, M10 X 25 | 2 |
Z10-2-1 Alternator
| 02***87 | Timer, Fuel Cut-Off | 1 |
| 02***61 | Bolt, . | 1 |
| 02***62 | Spacer, . | 1 |
Z10-1-20 Starter Motor
| 02***38 | Motor, Starter | 1 |
Z60-1-10 Chassis, Frame & Components, Without Canopy
| 33***12 | Bracket, Mounting | 1 |
| 33***70 | Tank, Diesel Fuel | 1 |
| 33***71 | Frame, Cross | 1 |
Z60-2-1 Chassis
| 33***01 | Clamp | 3 |
| 33***02 | Pipe, End Silencer | 1 |
| 33***03 | Silencer, Exhaust | 1 |
Z60-3-1 Chassis
| 33***01 | Clamp | 3 |
| 33***06 | Meter, Flow | 1 |
| 33***12 | Bracket, Mounting | 1 |
Z60-5-1 Chassis
| 33***09 | Clamp | 3 |
| 33***10 | Silencer, Exhaust | 1 |
| 33***11 | Forklift, Pocket | 2 |
Z60-4-1 Chassis
| 33***01 | Clamp | 3 |
| 33***06 | Meter, Flow | 1 |
| 33***12 | Bracket, Mounting | 1 |
Z60-3-10 Chassis, Frame & Components, Without Canopy
| 33***12 | Bracket, Mounting | 1 |
| 33***70 | Tank, Diesel Fuel | 1 |
| 33***71 | Frame, Cross | 1 |
Z60-1-1 Chassis
| 33***01 | Clamp | 3 |
| 33***02 | Pipe, End Silencer | 1 |
| 33***03 | Silencer, Exhaust | 1 |
Z60-6-1 Chassis
| 33***09 | Clamp | 3 |
| 33***14 | Frame, Canopy Support, Lower | 1 |
| 33***17 | Silencer, Exhaust | 1 |
Z60-4-10 Chassis, Frame & Components, Without Canopy
| 33***12 | Bracket, Mounting | 1 |
| 33***70 | Tank, Diesel Fuel | 1 |
| 33***71 | Frame, Cross | 1 |
Z60-5-10 Chassis, Frame & Components, Without Canopy
| 33***12 | Bracket, Mounting | 1 |
| 33***70 | Tank, Diesel Fuel | 1 |
| 33***71 | Frame, Cross | 1 |
Z61-4-1 Canopy
| 33***51 | Cover | 1 |
| 33***53 | Dowel, Location | 2 |
| 33***60 | Grommet | 2 |
Z61-1-1 Canopy
| 33***50 | Panel, Top | 1 |
| 33***51 | Cover | 1 |
| 33***52 | Panel, Side | 1 |
Z61-2-1 Canopy
| 33***51 | Cover | 1 |
| 33***53 | Dowel, Location | 2 |
| 33***56 | Hinge | 2 |
Z61-3-1 Canopy
| 33***51 | Cover | 2 |
| 33***53 | Dowel, Location | 2 |
| 33***60 | Grommet | 2 |
Z62-3-1 Generator Alternator, Bci164d
| 32***06 | Alternator | 1 |
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
Z62-5-1 Generator Alternator, Bci184f
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***80 | Alternator, Assembly | 1 |
Z62-2-1 Generator Alternator, Bci164c
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 33***24 | Bearing, Nde | 1 |
Z62-1-1 Generator Alternator, Bci164b
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 33***24 | Bearing, Nde | 1 |
Z62-4-1 Generator Alternator, Bci184e
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***38 | Alternator | 1 |
Z62-6-1 Generator Alternator, Bci184g
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***44 | Alternator | 1 |
Z63-10-1 Kit, Conversion, Can/Usb
| 33***91 | Kit, Can/Usb Converter; Kit Consists Of: Cc/Usb Converter; Usb Cable; Db9 Connector;, Telecontrol Software; Configuration Software | 1 |
Z63-1-1 Control Panel
| 33***32 | Key, Ignition | 1 |
| 33***25 | Unit, Control Panel Assembly | 1 |
| 33***28 | Panel, Front | 1 |
Jcb : G30rx(Jcb Generator) : Z Jcb Generator Set : Z64 Generator Ac Power
Z66-11-1 Cables, Isolation Kit, & Bridge
| 33***30 | Kit, Battery Isolator, 1109 | 1 |
| 33***35 | Battery, Cables, Yanmar 4tnv98t | 1 |
| 33***42 | Bridge, Battery, With Isolator Kit | 1 |
Z66-9-1 Cables, Isolation Kit, & Bridge
| 33***30 | Kit, Battery Isolator, 1109 | 1 |
| 33***37 | Battery, Cables, Yanmar 4tnv98 | 1 |
| 33***42 | Bridge, Battery, With Isolator Kit | 1 |
Z66-8-1 Cables, & Isolator
| 33***30 | Kit, Battery Isolator, 1109 | 1 |
| 33***38 | Battery, Cables, Yanmar 4tnv88/84t | 1 |
| 33***45 | Battery, Cables | 1 |
Z66-1-1 Cables, & Isolator
| 33***29 | Kit, Battery Isolator, 1103 | 1 |
| 33***34 | Battery, Cables, Yanmar 3tnv | 1 |
Z66-4-1 Cables
| 33***38 | Battery, Cables, Yanmar 4tnv88/84t | 1 |
Z66-10-1 Cables, Isolation Kit, & Bridge
| 33***30 | Kit, Battery Isolator, 1109 | 1 |
| 33***39 | Battery, Cables, Yanmar 4tnv98 | 1 |
| 33***42 | Bridge, Battery, With Isolator Kit | 1 |
Z66-2-1 Cables
| 33***40 | Battery, Cables, Yanmar 3tnv76/88 | 1 |
Z66-5-1 Cables, & Isolator
| 33***29 | Kit, Battery Isolator, 1103 | 1 |
| 33***38 | Battery, Cables, Yanmar 4tnv88/84t | 1 |
| 33***45 | Battery, Cables | 1 |
Z66-6-1 Cables, Isolation Kit, & Bridge
| 33***29 | Kit, Battery Isolator, 1103 | 1 |
| 33***36 | Battery, Cables, Yanmar 4tnv88/84t/98 | 1 |
| 33***42 | Bridge, Battery, With Isolator Kit | 1 |
Z66-3-1 Cables, & Isolator
| 33***29 | Kit, Battery Isolator, 1103 | 1 |
| 33***36 | Battery, Cables, Yanmar 4tnv88/84t/98 | 1 |
Z66-7-1 Cables, & Isolator
| 33***29 | Kit, Battery Isolator, 1103 | 1 |
| 33***38 | Battery, Cables, Yanmar 4tnv88/84t | 1 |
G30RX(JCB GENERATOR) serial number reference
Check the machine identification plate for the serial number. Confirm applicability with a JCB dealer.
| Prefix | Identifies | Notes |
|---|---|---|
| 01650000-01699999 | JCB GENERATOR the OEM part reference (50Hz Rental Range) | |
| 01650000-01699999 | JCB GENERATOR the OEM part reference (60Hz Rental Range) |
Frequently asked questions
What engine does the JCB G30RX use?
The G30RX uses engines sourced from JCB Dieselmax, Scania, or Cummins, depending on the specific serial range and market configuration.
What is the operating weight of the JCB G30RX?
The operating weight is not specified in the available source data for the G30RX model.
What model replaced the JCB G30RX?
The source data does not identify a specific successor model to the G30RX.
What G30RX(JCB GENERATOR) owners discuss
What engine family is typically associated with the JCB G30RX generator series?
The JCB G30RX series utilizes JCB 444 engines, available in mechanical and electronic Tier 2, Tier 3, and Tier 4 configurations. Specific variants include the T4 Final EcoMax and early Tier 2 Dieselmax generations. Identification requires checking the engine data plate or part number lookup, as specifications vary by generation and emissions tier.
What are common starting issues reported for JCB 444 engines in this series?
Starting problems are the most frequent complaint. In cold weather, failure to fire despite cranking often indicates failed glow plugs or a faulty glow plug relay/timer. General starting issues may stem from battery faults or complex fuel system faults. Owners should verify glow plug power and heating operation specifically during cold starts.
What electrical or sensor faults commonly trigger torque reduction in JCB generators?
Diagnostic trouble codes frequently indicate issues with the rail pressure control system, injectors, and sensors for intake pressure, temperature, fuel, and oil temperature. Specific high-frequency faults include MAF sensor low/high voltage faults (P0102/P0103), water-in-fuel sensor feedback signal ADC faults (P2264/P2265), and AMF high-side driver faults (P0100). Injector drift faults on specific injectors (e.g., Injector 2) also occur.
What are the typical wear patterns or hydraulic behaviors noted for JCB power systems?
Operators note that hydraulic performance can degrade when the machine is positioned with the rear end lower than the front (e.g., in a hole), suggesting oil starvation to the pump. Undercarriage and powertrain wear are influenced by ground conditions and load cycles. Regular maintenance of the hydraulic system is critical to prevent component damage due to contamination.
What fluid specifications are recommended for JCB power systems?
JCB recommends using genuine JCB service fluids, including hydraulic oil, engine oil, and transmission oil. These fluids are rigorously tested and approved to ensure component protection. The use of genuine JCB hydraulic oil and filters is specified to maintain warranty coverage and extend equipment life. Coolant must be changed at recommended intervals to prevent silicate separation, which causes brown sludge in the expansion bottle.
What is a critical pre-purchase check for a used JCB G30RX generator?
Verify the exact engine serial number and data plate to confirm the specific generation (Tier 2, 3, or 4) and variant (mechanical vs. electronic). Check for diagnostic trouble codes related to the rail pressure control system and injectors. Inspect the glow plug system for cold-start reliability and verify the condition of the AMF (Automatic Mains Failure) high-side driver circuit. Confirm that the engine oil and coolant have been changed at recommended intervals to avoid silicate separation damage.
How does the JCB G30RX handle load management and monitoring?
The generator range supports 24x7 operation with IoT-enabled LiveLink telematics for real-time performance tracking. This system monitors voltage and current across three phases, fuel level timelines, engine operation across load bands, and exported power tracking. This data aids in maintenance scheduling and ensuring the engine operates within its designed load bands to prevent overboost or torque reduction events.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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