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Jcb G30R(JCB GENERATOR)
Maintenance schedule, common problems & OEM parts breakdown
The JCB G30R is a mid-range diesel generator set within the JCB Power Products range, designed for prime and standby power applications. It is part of the G-series lineup, which spans from 8kVA to 3.35MVA, and is available in open, canopy, and container configurations. The G30R typically utilizes a JCB Dieselmax or equivalent industrial diesel engine, paired with a high-efficiency alternator. It is engineered for rental and industrial use, offering robust performance in canopied or open-type units suitable for global deployment.
Across the G-series generations, JCB has integrated modern fuel-efficient engines from manufacturers such as JCB Dieselmax, Scania, Cummins, and Volvo to meet evolving emissions standards like Tier 4 Final. The G30R remains relevant in the used and parts market due to its modular design facilitating easy service access through large door openings and central lifting points. Compatibility with standard industrial components and availability of JCB Genuine service fluids and filters ensure continued operational viability.
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 G30R(JCB GENERATOR) specifications
Engine
| Model | Perkins 103-10 |
| Type | Three-cylinder liquid-cooled diesel |
| Displacement | 58.2 cu in (0.954 L) |
| Cylinders | 3, inline |
| Rated Power | 21.5 hp (16.0 kW) |
| Rated Speed | 3000 rpm |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
Weights
| Operating Weight | 1545 lb (700 kg) |
| 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 | 103.8 in (2630 mm) |
| Transport Width | 37.7 in (950 mm) |
| Transport Height | 79.1 in (2000 mm) (ROPS) |
| Wheelbase | 45 in (1140 mm) |
| Ground Clearance | 7.5 in (190 mm) |
Performance
| Travel Speed (Forward High) | 12.0 mph (19.3 kph) |
| Travel Speed (Forward Low) | 2.5 mph (4.0 kph) |
| Travel Speed (Reverse High) | 12.0 mph (19.3 kph) |
| Travel Speed (Reverse Low) | 2.5 mph (4.0 kph) |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Fuel Tank | 7.0 gal (26.0 L) |
| Hydraulic System | Not documented for this exact serial range — verify with your dealer |
| Engine Oil | 2.3 qt (2.2 L) |
| Cooling System | 3.7 qt (3.5 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Jcb G30R(JCB GENERATOR) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the G30R(JCB GENERATOR) beyond the schedule
Predictive Maintenance & Fluid Analysis
At the 500-hour interval, collect oil samples from the engine, hydraulic tank, and axle housings to establish a baseline. Inspect the hydraulic return filter magnet for metallic debris before disposal. Monitor the coolant expansion tank for brown sludge, which indicates silicate separation and necessitates immediate coolant replacement. Use JCB Engine Oil Special or equivalent 15W-40 diesel oil meeting API specifications. Regular fluid analysis prevents premature failure of the Dieselmax engine and hydraulic pumps.
Corrective & Common Repairs
Address injector drift faults by monitoring rail pressure control via the JCB 444 Engine Diagnostics tool. Replace primary and secondary fuel filters at 500 hours to protect common-rail injectors from contamination. Check alternator and starter load during the 1000-hour service to catch electrical degradation. Inspect turbocharger shaft play and charge cooler boot condition to maintain engine efficiency. Replace worn brake discs and immersed brake components during the 2000-hour deep service.
Overhaul & Rebuild Points
The 2000-hour interval marks the deep service point for structural integrity. Inspect the chassis, side frames, and boom for unauthorized welding or cracking. Measure swing ring play using dial indicators if the unit is equipped with a swing mechanism. Drain and clean the hydraulic tank thoroughly before refilling with JCB-spec hydraulic oil. Replace all seals and gaskets exposed during the hydraulic oil change. Verify injector spray patterns and replace as required to restore compression and power output.
Seasonal & Environment Servicing
In cold environments below 29.4°C (40°F), ensure glow plugs cycle correctly for reliable starts. Check the battery electrolyte level on non-sealed units and verify terminal tightness. In dusty conditions, clean the air filter more frequently or replace it based on the restriction indicator. Inspect the radiator and charge cooler for debris buildup to prevent overheating. Verify the operation of the backup alarm, fire extinguisher, and emergency stop switches before seasonal deployment.
G30R(JCB GENERATOR) 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.
G30R(JCB GENERATOR) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| P0087 | Fuel rail/system pressure too low | Fuel filter blockage, lift pump failure, or fuel supply restriction | Check fuel filter condition and fuel pump operation; verify fuel line integrity |
| P0117 | Engine coolant temperature sensor circuit low voltage | Faulty coolant temperature sensor, shorted wiring harness, or poor connector contact | Inspect sensor wiring for damage and check connector pins for corrosion; test sensor resistance |
| P0521 | Engine oil pressure sensor range/performance issue | Faulty oil pressure sensor, low oil level, or sensor circuit malfunction | Verify engine oil level is correct; inspect sensor wiring and connector; test sensor output |
| P0335 | Crankshaft Position Sensor 'A' Circuit No Signal | Failed crankshaft position sensor, damaged wiring, or dirty sensor tip | Inspect sensor and wiring for damage; clean sensor tip if accessible; test sensor signal |
| P0200 | Injector circuit open (general) | Open circuit in injector wiring harness, faulty injector solenoid, or ECU driver fault | Inspect injector wiring harness for chafing or breaks; check connector pins; test injector resistance |
| U0100 | Lost communication with Engine Control Module (ECM) | CAN bus wiring fault, poor ground connection, or ECM power supply issue | Check battery voltage and ground straps; inspect CAN bus wiring for damage or corrosion |
| P0102 | Mass Air Flow (MAF) Sensor Low Voltage Fault | Faulty MAF sensor, clogged air filter, or intake air leak | Inspect air intake system for leaks; check MAF sensor connector and wiring; clean or replace sensor |
| P0321 | CAN bus message error for engine speed from engine ECU | CAN bus communication fault, sensor signal loss, or ECU software glitch | Check CAN bus wiring connections; verify sensor signals; reset ECU if necessary |
| P0261 | Low signal of the injector circuit of the 1st cylinder | Faulty injector #1, open circuit in injector #1 wiring, or ECU driver issue | Inspect injector #1 wiring and connector; test injector #1 resistance; swap injectors to isolate fault |
| P0116 | Range/Performance of circuit 1 of the coolant temperature sensor | Coolant level low, faulty sensor, or sensor calibration drift | Check coolant level and condition; inspect sensor wiring; replace sensor if out of spec |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
G30R(JCB GENERATOR) attachments & work tools
Acoustic Enclosure / Canopy
The G30R is supplied as a rental-ready unit with a heavy-gauge steel acoustic canopy. The enclosure provides noise attenuation suitable for noise-sensitive applications and includes large door openings for service access.
Fuel System Configuration
The generator set utilizes a total fuel capacity of 100 liters (26.4 gallons). The system supports extended fuel tanks or connections for external bulk fuel tanks to enable continuous operation.
Control Panel & Electrical
Equipped with a JCB Digital Control Panel featuring synchronising and auto main failure (AMF) capabilities. The unit includes plug-and-play socket connections for instant power distribution.
Telematics
LiveLink Telematics is available as an option to monitor fuel consumption and engine health, allowing fleet control and remote diagnostics.
Lifting & Handling
The chassis includes central lifting points and fork pockets to facilitate easy moving and installation of the heavy generator set.
Engine & Powertrain
The G30R is powered by a JCB Dieselmax or JCB 4 Cylinder Dieselmax engine. The specific engine variant depends on the production series and market configuration.
Air Filtration
The system incorporates heavy-duty air filtration and a three-stage fuel filtration system to ensure reliability in extreme environments and dusty worksites.
All G30R(JCB GENERATOR) assemblies by section
Every catalogued assembly group for the Jcb G30R(JCB GENERATOR). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Z Generating Power Units
Z0-9-2 Generator Set, G33q 30kva, 50hz 380/415v Prime
| 32***17 | Jcb, Generator G33q, 30kva | 1 |
Z0-5-3 Generator Set, G30r
| 32***12 | Jcb, Generator G30r | 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 |
Z0-8-1 Generator Set, G33 22.7kva, 50hz 220/240v Prime
| 32***14 | Jcb, Generator G33, 22.7kva | 1 |
Z0-8-2 Generator Set, G33 30kva, 50hz 380/415v Prime
| 32***16 | Jcb, Generator G33, 30kva | 1 |
Z0-2-1 Generator Set, G17q 12.3kva, 50hz 220/240v Prime
| 32***02 | Jcb, Generator G17q, 12.3kva | 1 |
Z0-9-1 Generator Set, G33q 22.7kva, 50hz 220/240v Prime
| 32***15 | Jcb, Generator G33q, 22.7kva | 1 |
Z0-5-2 Generator Set, G20r
| 32***11 | Jcb, Generator G20r | 1 |
Z0-4-1 Generator Set, G22q 16.3kva, 50hz 220/240v Prime
| 32***06 | Jcb, Generator G22q, 16.3kva | 1 |
Z0-1-1 Generator Set, G17 12.3kva, 50hz 220/240v Prime
| 32***01 | Jcb, Generator G17, 12.3kva | 1 |
Z0-2-2 Generator Set, G17q 15kva, 50hz 380/415v Prime
| 32***04 | Jcb, Generator G17q, 15kva | 1 |
Z0-7-2 Generator Set, G30q 27kva, 50hz 380/415v Prime
| 32***13 | Jcb, Generator G30q, 27kva | 1 |
Z0-6-2 Generator Set, G30 27kva, 50hz 380/415v Prime
| 32***12 | Jcb, Generator G30, 27kva | 1 |
Z0-4-2 Generator Set, G22q 20kva, 50hz 380/415v Prime
| 32***08 | Jcb, Generator G22q, 20kva | 1 |
Z0-3-1 Generator Set, G22 16.3kva, 50hz 220/240v Prime
| 32***05 | Jcb, Generator G22, 16.3kva | 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 |
Z1-2-1 Engine Assembly, D2009 L04, 321/10002
| 32***02 | Engine, Assembly, D2009 L04 | 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 |
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 |
Z8-2-1 Front End Drive, Accessory, With Cooling Fan
| 02***00 | Bolt, Alternator | 1 |
| 02***03 | Bolt, Hex Head | 1 |
| 02***04 | Belt, Fan Drive | 1 |
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 |
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 |
Z11-2-1 Switches & Senders, 12volt
| 02***10 | Rail, Glow Plug Connector | 1 |
| 02***12 | Nut, Locking | 4 |
| 70***68 | Switch, Oil Pressure | 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 |
Z11-3-1 Switches & Senders, 12volt
| 02***10 | Rail, Glow Plug Connector | 1 |
| 02***12 | Nut, Locking | 4 |
| 70***68 | Switch, Oil Pressure | 1 |
Z12-5-1 Fuel Pipework, Low Pressure, Tc
| 02***36 | Olive | 4 |
| 02***37 | Pipe | 1 |
| 02***38 | Nut | 6 |
Z12-2-1 Fuel Pipework, Low Pressure
| 02***36 | Olive | 5 |
| 02***37 | Pipe | 1 |
| 02***38 | Nut | 6 |
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 |
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 |
Z12-4-1 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 |
Z12-11-1 Fuel Filter
| 02***36 | Bolt, M10x25 Hex Head | 2 |
| 02***03 | Bracket | 1 |
| 32***72 | Filter, Fuel Element, Cartridge | 1 |
Z13-2-1 Fuel Injector
| 02***59 | Washer | 4 |
| 02***60 | Clamp | 4 |
| 02***61 | Bolt, Torx Head | 4 |
Z13-1-1 Fuel Injector
| 02***59 | Washer | 3 |
| 02***60 | Clamp | 3 |
| 02***61 | Bolt, Torx Head | 3 |
Z13-3-1 Fuel Injector, Tc
| 02***59 | Washer | 4 |
| 02***60 | Clamp | 4 |
| 02***61 | Bolt, Torx Head | 4 |
Z14-2-1 Fuel Lift Pump, Tc
| 02***05 | Bolt, Hex Head M8x16 | 4 |
| 02***62 | O Ring | 1 |
| 17***01 | Rod, Push | 1 |
Z14-1-1 Fuel Lift Pump
| 02***05 | Bolt, Hex Head M8x16 | 4 |
| 02***62 | O Ring | 1 |
| 17***00 | Pump, Fuel Lift | 1 |
Z15-3-1 Fuel Injection Pump
| 02***46 | Bolt, Hex Head M8x30 | 3 |
| 02***64 | Gear, Fuel Injection | 1 |
| 02***36 | Olive | 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 |
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 |
Z19-2-1 Rocker Cover
| 02***45 | Bolt, Hex Head M8x50 | 10 |
| 02***69 | Cover, Rocker | 1 |
| 02***71 | Pipe, Breather | 1 |
Z19-1-1 Rocker Cover
| 02***45 | Bolt, Hex Head M8x50 | 8 |
| 02***71 | Pipe, Breather | 1 |
| 02***72 | Cap, Filler | 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 |
Z25-2-1 Induction Manifold
| 02***52 | Bolt, Hex Head M8x70 | 9 |
| 02***97 | Gasket | 1 |
| 02***98 | Pipe, Breather | 1 |
Z25-3-1 Induction Manifold, Tc
| 02***52 | Bolt, Hex Head M8x70 | 8 |
| 02***97 | Gasket | 1 |
| 02***99 | Tube, Connection | 2 |
Z25-1-1 Induction Manifold
| 02***52 | Bolt, Hex Head M8x70 | 2 |
| 02***98 | Pipe, Breather | 1 |
| 02***99 | Tube, Connection | 2 |
Z26-3-1 Exhaust Manifold, Tc
| 02***45 | Bolt, Hex Head M8x50 | 8 |
| 02***02 | Gasket | 1 |
| 02***80 | Manifold, Exhaust, Turbo | 1 |
Z26-1-1 Exhaust Manifold
| 02***36 | Bolt, M10x25 Hex Head | 2 |
| 02***45 | Bolt, Hex Head M8x50 | 8 |
| 02***03 | Gasket | 2 |
Z26-2-1 Exhaust Manifold
| 02***45 | Bolt, Hex Head M8x50 | 8 |
| 02***02 | Gasket | 1 |
| 02***03 | Gasket | 2 |
Z27-2-1 Cylinder Head, Assembly
| 02***19 | Plug | 2 |
| 02***21 | Plug | 1 |
| 02***75 | Head, Cylinder Assemby | 1 |
Z27-1-1 Cylinder Head, Assembly
| 02***19 | Plug | 2 |
| 02***21 | Plug | 1 |
| 02***76 | Insert, Exhaust Valve | 3 |
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 |
Z29-2-1 Oil Cooler, Filter & Pipework
| 02***45 | Bolt, Hex Head M8x50 | 1 |
| 02***28 | O Ring | 2 |
| 02***29 | O Ring | 1 |
Z29-1-1 Filter, Oil
| 02***45 | Bolt, Hex Head M8x50 | 1 |
| 02***27 | Connector | 1 |
| 02***28 | O Ring | 2 |
Z30-1-1 Oil Level Dipstick
| 02***21 | Dipstick | 1 |
| 02***22 | O Ring | 1 |
| 02***23 | Plug | 1 |
Z31-2-1 Oil Sump
| 02***08 | Bolt, Hex Head M8x20 | 26 |
| 02***11 | Sump, Oil | 1 |
| 02***12 | O Ring | 8 |
Z31-1-1 Oil Sump
| 02***12 | O Ring | 8 |
| 02***15 | Strip | 2 |
| 02***16 | Washer, Sealing | 2 |
Z32-2-1 Oil Pump, & Oil Relief Valve
| 02***53 | Valve, Oil Pressure, Regulator | 1 |
| 02***24 | Gear | 1 |
| 02***25 | Pump, Oil | 1 |
Z32-1-1 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 |
Z37-3-1 Piston & Con-Rod, Assemblies
| 02***36 | Bush, Small End | 1 |
| 02***37 | Bolt, Con-Rod | 2 |
| 02***41 | Pin, Gudgeon | 1 |
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 |
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 |
Z39-1-1 Cylinder Block, Assembly
| 02***13 | Plug, Core | 7 |
| 02***14 | Plug, Core | 3 |
| 02***15 | Bearing, Main | 1 |
Z39-2-1 Cylinder Block, Assembly
| 02***13 | Plug, Core | 9 |
| 02***14 | Plug, Core | 4 |
| 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 |
Z45-3-1 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 |
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 |
Z46-2-1 Radiator & Fittings, Td2009-L04
| 02***13 | Bolt | 8 |
| 30***51 | 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 |
Z46-1-1 Radiator & Fittings, D2009-L03, D2009-L04
| 02***13 | Bolt | 8 |
| 30***49 | 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 |
Z50-1-1 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 |
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 |
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 |
Z60-3-1 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 |
Z60-7-1 Lifting Bracket, (Optional)
| 13***8D | Setscrew, M12 X 30 | 4 |
| 13***3D | Nut, M12 | 4 |
| 14***9D | Washer, M12 | 8 |
Z60-2-1 Base & Fittings
| 13***5D | Setscrew, M8x20 | 0 |
| 13***5D | Setscrew, M10 X 20 | 0 |
| 13***3D | Nut, M6 Lock | 0 |
Z60-1-1 Base & Fittings
| 13***5D | Setscrew, M8x20 | 0 |
| 13***5D | Setscrew, M10 X 20 | 0 |
| 13***3D | Nut, M6 Lock | 0 |
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 |
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 |
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 |
Z62-1-1 Alternator, Bci 164 D16
| 32***06 | Alternator | 1 |
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 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 |
Z62-11-1 Alternator, Accessories
| 32***29 | Unit, Current Transformer | 1 |
| 32***31 | Kit, Voltage Monitor | 1 |
| 32***32 | Kit, Fuse 1a (10 Off) | 1 |
Z62-2-1 Alternator, Bci 184 E16
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***09 | Bearing, Nde | 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 |
Z63-24-1 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 |
Z63-11-1 Control Unit, Box & Panel Assemblies
| 13***3D | Setscrew | 4 |
| 13***5D | Setscrew, M6 X 20mm Long | 4 |
| 14***6D | Washer, M6 Plain | 8 |
Z63-51-1 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 |
Z63-25-1 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 |
Z63-52-1 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 |
Z63-21-1 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 |
Z63-56-1 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 |
Z63-54-1 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 |
Z63-27-1 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 |
Z63-53-1 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 |
Z63-26-1 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 |
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 |
Z63-22-1 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 |
Z63-2-1 Control & Breaker, Box Assembly
| 13***5D | Screw, M5x20 | 15 |
| 13***3D | Setscrew | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 4 |
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 |
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 |
Z65-3-1 Engine, Speed Group
| 32***25 | Sensor, Engine Speed | 1 |
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 |
Z65-2-1 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 G30R use?
The JCB G30R typically utilizes a JCB Dieselmax industrial diesel engine, though configurations may vary by region and production year, potentially using engines from Scania, Cummins, or Volvo.
What is the operating weight of the JCB G30R?
Operating weight varies by configuration (open, canopy, container) and attachment package. Consult the specific serial number data sheet for exact weight figures.
What replaced the JCB G30R?
The G30R is part of the broader G-series generator range. Successor models include the G30RX and other RX-series units within the 20-200 kVA rental diesel generator lineup.
What G30R(JCB GENERATOR) owners discuss
What engine family is typically associated with the JCB G30R generator set, and what are common cold-start issues reported by operators?
The JCB G30R generator set is part of the G-series range that utilizes JCB Dieselmax or Iveco engines. Operators frequently report starting difficulties in cold weather, often caused by failed glow plugs or a faulty glow plug relay/timer preventing correct heating.
What are the common causes of low power output in JCB generator engines?
Low power output is a common concern for JCB engine owners. Causes vary by engine generation and usage but typically include fuel system faults, such as clogged filters or injector issues, and electrical problems affecting the Engine Control Module (ECM). In some cases, the ECM may require software flashing to resolve persistent performance faults.
What specific electrical component failure is known to cause intermittent forward/reverse operation in JCB shuttle-transmission machines, and how is it verified?
Intermittent forward operation in JCB shuttle-transmission machines is often caused by a failure in the forward/reverse microswitch or inhibitor switch, which activates hydraulic solenoids on the transmission body. Verification involves checking if the solenoid is energized by touching it with a screwdriver blade; the blade should be attracted to the body when the lever is in the correct position. If the reverse solenoid works but the forward does not, the issue lies in the forward solenoid, its relay, or the wiring between the switch and the solenoid.
What are the typical undercarriage and wear patterns for JCB compact equipment, and what fluid specifications are recommended?
JCB compact equipment typically uses sealed track rollers and idlers that are not lubricable by the operator. For fluids, JCB recommends using JCB Synchoro Shuttle fluid for transmissions and JCB Engine Oil Special for engines. Genuine JCB hydraulic oil and filters are specified to ensure maximum component life and proper protection of high-precision hydraulic components.
What coolant maintenance issue is specific to JCB engines, and what is the recommended service interval action?
JCB engines are prone to silicate separation in the engine coolant, which manifests as brown sludge in the expansion bottle. To prevent corrosion and maintain cooling efficiency, the engine coolant must be changed at recommended service intervals; ignoring this can lead to cooling system blockages and overheating.
What are the common electrical and sensor issues reported for JCB generator sets and machinery?
Common electrical issues include faulty glow plug relays, failed microswitches for direction control, and ECM software glitches. Operators report frequent ghost fault codes in JCB machinery related to injector signals or ECM communication. Proper diagnosis requires checking wiring continuity and ensuring the ECM has the latest software flash.
What should be checked when buying a used JCB G30R generator set?
When buying a used JCB G30R, verify the engine data plate for the specific engine variant (e.g., Dieselmax or Iveco) and check for signs of silicate separation in the coolant. Test the glow plug system for cold-start reliability. Inspect the wiring harness for damage, particularly around the ECM and solenoids. Ensure generator output is stable under load and check for stored fault codes indicating intermittent electrical issues. Have your dealer verify the engine serial number and ECM software version.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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