Jcb 8085(8085 ROW)
Maintenance schedule, common problems & OEM parts breakdown
The JCB 8085 ZTS ROW is an 8-tonne zero tailswing mini crawler excavator manufactured from 2010 to 2014. It is powered by a 2.2-litre Dieselmax engine producing 53 hp (39.5 kW) net power. Operating weight ranges from 8,026 kg to 8,600 kg depending on configuration. The machine features a full-size excavator-style cab, side-mounted engine, and rear-mounted valve blocks for service access. Configurations include standard boom, long reach boom, and material handling variants. It succeeded earlier midi excavator lines and preceded the 8087 series.
The 8085 ZTS ROW introduced JCB's EcoMAX/Dieselmax engine technology with extended 500-hour oil intervals, eliminating the need for DEF or DPF systems common in later Tier 4 models. This design reduced downtime and maintenance costs, making it highly sought after in the used market for its reliability and simplicity. The zero tailswing design allowed operation in confined spaces without counterweight overhang, a key differentiator from predecessors. Parts availability remains strong due to the machine's widespread use in municipal and utility 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 8085(8085 ROW) specifications
Engine
| Model | JCB Dieselmax |
| Displacement | 2.2 L |
| Cylinders | 4 |
| Net Power | 53 hp (39.5 kW) |
| Emissions Tier | Interim Tier IV / EU Stage IIIA |
Weights
| Operating Weight | 17,694 lb (8,026 kg) |
Dimensions
| Track Gauge | 17.72 in (450 mm) |
| Sprocket Idler Centers | 7 ft 90 in (2,280 mm) |
| Track Length on Ground | 7 ft 87 in (2,200 mm) |
Performance
| Dig Depth | 13.85 ft (4.22 m) |
| Max Reach Horizontal | 22.41 ft (6.83 m) |
| Tearout Force | 8,093 lbf (36 kN) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Jcb 8085(8085 ROW) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the 8085(8085 ROW) beyond the schedule
Predictive Maintenance & Fluid Analysis
Baseline fluid analysis at the 500-hour interval is critical for the 8085 ZTS ROW. Take samples from the engine, hydraulic system, and axle housings to detect early wear. The Dieselmax engine's extended oil interval means contaminants accumulate faster between changes; monitor soot and fuel dilution levels closely. Hydraulic oil samples should be checked for ISO cleanliness codes to protect the common-rail injectors. Use JCB-spec long-life coolant at the 1000-hour service to prevent corrosion in the aluminum heat exchangers. Track undercarriage wear measurements at 1000 hours to predict replacement needs before failure.
Corrective & Common Repairs
Common issues on the 8085 ZTS ROW include hydraulic pump seal leaks and fuel filter housing gasket failures. Inspect the fuel filter sedimenter daily and replace the primary filter at 500 hours to protect the high-pressure injection system. Check the slew ring bolts for torque loss during the 1000-hour service; loose bolts can damage the slewing bearing race. Inspect the hydraulic return filter magnet for fine metallic debris indicating pump wear. Replace the air filter element when the restriction indicator shows red. Ensure the track tension is adjusted correctly to prevent premature roller and idler wear.
Overhaul & Rebuild Points
The 2000-hour service is the primary overhaul milestone for the 8085 ZTS ROW. Drain and clean the hydraulic tank thoroughly to remove sludge and water contamination.
Seasonal & Environment Servicing
In cold climates, ensure the coolant mixture is rated for the lowest expected temperature to prevent block cracking. Check the battery electrolyte level on non-sealed units and clean terminals. In dusty environments, inspect the air filter restriction indicator more frequently and clean the radiator cooler fins to prevent overheating. Verify the operation of the cab HVAC system before summer to maintain operator comfort. Inspect the track shoes for wear that could reduce traction on slippery surfaces. Ensure the backup alarm and lights are functional for safe operation in low-visibility conditions.
8085(8085 ROW) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 32/925827 | Element, Fuel Filter, Cartridge | Fuel system service | Check fitment → |
| 32/926116 | Filter, Fuel, Assembly | Fuel system service | Check fitment → |
| 32/926117 | Filter, Fuel Sediment, Assembly | Fuel system service | Check fitment → |
| 9099063251 | Bolt | Fuel system service | Check fitment → |
| 580/12166 | 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.
8085(8085 ROW) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 115 | Horn open circuit error | Broken wiring, blown fuse, or faulty horn unit | Inspect horn wiring continuity and fuse integrity |
| 215 | Horn short circuit error | Wiring insulation damage causing ground fault or shorted horn | Check wiring harness for shorts to ground and test horn resistance |
| 227 | Fuel rail pressure too low | Fuel supply restriction, failing lift pump, or pressure sensor fault | Check fuel filter condition and fuel line integrity |
| 22 | Intake air temperature sensor malfunction (low voltage) | Sensor ground fault, short circuit, or connector corrosion | Inspect sensor wiring and connector pins for damage |
| 237 | Travel alarm output short circuited | Faulty travel alarm buzzer or shorted wiring in the alarm circuit | Disconnect alarm buzzer to isolate circuit and check for shorts |
| 1XX | General open circuit error | Broken wire, loose connection, or failed component in sensor/solenoid circuit | Trace specific circuit using wiring diagram and check continuity |
| 2XX | General short circuit error | Wiring short to ground or internal component short | Inspect wiring harness for chafing or pinching near moving parts |
| 3XX | General system error | ECU communication fault, calibration drift, or internal module failure | Run diagnostic scan with JCB ServiceMaster to identify specific subsystem |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
8085(8085 ROW) attachments & work tools
Digging Buckets
Standard and deep-dig configurations are available for the 8085 ZTS, with typical widths ranging from 30 to 48 inches (762 to 1219 mm) depending on the specific bucket profile. These buckets utilize a standard JCB quick hitch mounting system compatible with the machine's boom geometry.
Grading and Ditching Buckets
Grading and ditching buckets are offered to complement the digging envelope, with widths varying by configuration to match the 8085 ZTS class. These tools are designed for utility work and require the standard auxiliary hydraulic circuit for tilt functions.
Tilt Rotators
The 8085 ZTS supports tilt rotator attachments for enhanced precision in tight access areas. These units require double-acting auxiliary pipework, which is available as an optional upgrade from the standard single-acting breaker circuit.
Hydraulic Breakers
Breaker attachments are supported by standard single-acting auxiliary pipework. Optional double-acting pipework can be specified for tools requiring continuous hydraulic flow, such as certain hammer models or high-flow attachments.
Quick Hitches and Couplers
Both manual and hydraulic quick hitch options are available for the 8085 ZTS. Hydraulic quick hitches allow for rapid tool changes from the operator's seat, while manual options provide a cost-effective alternative for static work sites.
Specialty Attachments
Optional grapple changeover valves are available on the auxiliary high-flow circuit for hanging grapples or similar tools. Hydraulic pallet forks and land clearance rakes are also compatible with the machine's auxiliary hydraulic system.
All 8085(8085 ROW) assemblies by section
Every catalogued assembly group for the Jcb 8085(8085 ROW). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
B Bodywork
B3-0-11 Undercarriage
| 13***8D | Setscrew, M12 X 30 | 12 |
| 13***6D | Bolt, M12 X 70 | 40 |
| 13***1D | Bolt, M16 X 45mm | 23 |
C Electrics
C3-12-11 Alternator, Assembly, 12v 80a
| 13***1D | Screw, M10 X 110 | 1 |
| 13***4D | Bolt, M10x140 | 1 |
| 13***3D | Nut, Self Lock M10 | 2 |
C8-0-11 Engine Electrical Control Parts
| 02***84 | Lead, Starter Earth | 1 |
| 02***62 | Bolt, M12x35 | 2 |
| 02***70 | Nut, M8 | 1 |
K Engine Isuzu 4le2xysj01 Tier 3
K0-0-11 Power Unit Assembly
| 12***02 | Plate, Compression | 4 |
| 12***97 | Fan, & Viscous Coupling, Assembly | 1 |
| 13***1D | Screw, Set M6x12 | 3 |
K2-0-11 Gasket Sets, Engine, Overhaul
| 02***41 | Kit, Gasket Set | 1 |
K3-0-11 Oil Pump & Oil Strainer
| 02***38 | O Ring | 1 |
| 02***18 | Bolt, M8x16 | 1 |
| 02***91 | Gasket | 1 |
K4-90-11 Oil, Pan, & Level Guage
| 02***57 | Plug, Drain, M24x17 | 1 |
| 02***92 | Gasket, . | 1 |
| 02***96 | Nut, M6 | 4 |
K4-40-11 Oil Cooler & Oil Filter
| 02***38 | O Ring | 1 |
| 02***72 | Gasket, Air Breather | 1 |
| 02***53 | Gasket, . | 1 |
K4-0-11 Cylinder Block, Assembly
| 02***19 | Plug, Water Drain, Pt 1/4 | 1 |
| 02***21 | Pin, 11odx8 | 4 |
| 02***79 | Plug, O/D = 22mm | 1 |
K5-0-11 Cylinder Head, Assembly
| 02***79 | Plug, O/D = 22mm | 6 |
| 02***69 | Plug Core, O/D = 45mm | 1 |
| 02***18 | Bolt, M8x16 | 2 |
K5-50-11 Manifold, Induction
| 02***05 | Bolt, M5x20 | 2 |
| 02***52 | Valve | 1 |
| 02***93 | Stud, M6x16 | 2 |
K5-10-11 Cover, Cylinder Head
| 02***99 | Seal | 1 |
| 02***18 | Stud, M6x20 | 2 |
| 02***49 | Bolt, M6 X 20 | 7 |
K5-40-11 Manifold, Exhaust
| 02***46 | Nut, M8 | 8 |
| 02***18 | Gasket, . | 1 |
| 02***21 | Manifold, Exhaust | 1 |
K5-40-21 Egr Emission Piping
| 02***62 | Gasket | 2 |
| 02***63 | Gasket | 1 |
| 02***43 | Nut, M8 | 4 |
K6-0-11 Camshaft, Rocker & Valves
| 02***19 | Bolt, Oil Level Switch, M6x25 | 5 |
| 02***27 | Collet, Split | 16 |
| 02***55 | Bolt, M6 X 50 | 5 |
K7-0-11 Crankshaft, Piston & Flywheel
| 02***01 | Key, Woodruff | 1 |
| 02***05 | Pin, . | 4 |
| 02***29 | Bolt, M12x32 | 6 |
K8-70-21 Timing Chain Case
| 02***19 | Nut, M6 | 1 |
| 02***49 | Bolt, M6 X 20 | 3 |
| 02***33 | Nut, M8 | 2 |
K8-70-11 Timing Gear Case & Flywheel Housing
| 02***99 | Seal | 1 |
| 02***26 | Bolt, M10x25 | 6 |
| 02***88 | Nut, Cover, M8 | 2 |
L Engine Ancillaries
L2-0-11 Induction Assembly
| 13***8D | Setscrew, M8 X 30mm | 2 |
| 13***1D | Nut, M8 | 2 |
| 14***7D | Washer, M8 Plain | 4 |
L3-0-11 Fuel Injection System
| 02***45 | Washer, Seal | 4 |
| 02***81 | Kit-Filter | 1 |
| 02***95 | Collar | 2 |
L3-60-11 Main & Sedimentor Fuel Filters
| 02***27 | Cover, . | 1 |
| 02***33 | Joint, . | 1 |
| 02***35 | Gasket, . | 1 |
L4-60-11 Water Piping, Engine
| 02***52 | Clip, Hose | 10 |
| 02***45 | Clip, Jubilee, Id=45 | 2 |
| 02***18 | Bolt, M8x16 | 2 |
L4-90-21 Pulley Fan
| 01***05 | Pulley, Fan Drive, 118 Od 1 Groove | 1 |
| 02***20 | Bolt, M6x12 | 2 |
L4-90-11 Fan, Assembly, Viscous
| 12***97 | Fan, & Viscous Coupling, Assembly | 1 |
| 13***3Z | Nut, Self Lock, M8 | 4 |
| 14***7Z | Washer | 4 |
L4-50-11 Thermostat & Housing
| 02***58 | Gasket | 1 |
| 02***52 | Clip, Hose | 3 |
| 02***68 | Thermostat | 1 |
L5-0-11 Water Pump
| 02***11 | Bolt, M8 X 50 | 1 |
| 02***74 | Stud, M8x71 | 1 |
| 02***88 | Nut, Cover, M8 | 2 |
L6-20-11 Turbo & Oil Pump Piping
| 02***35 | Bolt, Banjo | 1 |
| 02***51 | Gasket, . | 2 |
| 02***80 | Pipe, Oil Pump To Cylinder Block | 1 |
L6-0-11 Turbocharger
| 02***62 | Gasket | 1 |
| 02***07 | Bolt, Sensor, M6x16 | 4 |
| 02***46 | Nut, M8 | 7 |
L7-0-21 Exhaust , Manifold, Pipe
| 33***80 | Bellows, Flexible Exhaust | 1 |
| 33***94 | Pipe, Silencer To Bellows | 1 |
| 33***73 | Pipe, Bellows To Turbo | 1 |
L7-0-11 Exhaust System
| 13***3D | Setscrew | 2 |
| 13***7D | Setscrew, M12 X 25 | 2 |
| 13***3D | Nut, Self Lock M8 | 3 |
Z Top Level Structures
Z3-0-11 Main Build, 8085
| 23***13 | Cover, Digging, Assembly | 0 |
| 23***66 | Label, Tops/Fogs | 0 |
| 23***29 | Lubricant, Assembly | 1 |
8085(8085 ROW) serial number reference
Locate the machine identification plate riveted to the right-hand side of the kingpost. The plate displays the Product Identification Number (PIN) with the machine serial number (8 digits) in the fourth field. Verify applicability with a JCB dealer if the plate is missing or unreadable.
| Prefix | Identifies | Notes |
|---|---|---|
| 01071500 | JCB 8085 ZTS ROW (Mini Excavator). Applicability: Start of production for this specific generation/configuration. Source: JCB Service Manual the OEM part reference-2 and Parts Manual Catalog for 8085 ZTS ROW. | Confirmed by JCB Service Manual the OEM part reference-2, which states: 'JCB 8085 from serial number 1071500.' This is the definitive start of the serial range for this model. |
| 01071500-01073122 | JCB 8085 ZTS ROW (Mini Excavator). Applicability: Serial range covered by Parts Manual Catalog the OEM part reference for years 2009-2013. Source: RepairsAdvisor Parts Manual Catalog listing. | Verified against the specific parts catalog title 'JCB 8085 ZTS ROW 01071500-01073122 -2009-2013-Mini Excavator 9822_0140'. The range is explicitly defined in the catalog metadata. |
| 01073000-01073203 | JCB 8085 ZTS ROW (Mini Excavator). Applicability: Serial range covered by Parts Manual Catalog the OEM part reference for year 2013. Source: RepairsAdvisor Parts Manual Catalog listing. | Verified against the specific parts catalog title 'JCB 8085 ZTS ROW 01073000-01073203 -2013-Mini Excavator 9822 0140'. The range is explicitly defined in the catalog metadata. |
| 02336424-02336574 | JCB 8085 ZTS ROW (Mini Excavator). Applicability: Serial range covered by Parts Manual Catalog 9822 0140 for year 2013. Source: RepairsAdvisor Parts Manual Catalog listing. | Verified against the specific parts catalog title 'JCB 8085 ZTS ROW 02336424-02336574 -2013-Mini Excavator 9822 0140'. The range is explicitly defined in the catalog metadata. |
Frequently asked questions
What engine does the JCB 8085 ZTS ROW use?
The JCB 8085 ZTS ROW uses a 2.2-litre Dieselmax engine producing 53 hp (39.5 kW) net power.
What is the operating weight of the JCB 8085 ZTS ROW?
Operating weight ranges from 8,026 kg to 8,600 kg depending on configuration and attachments.
What model replaced the JCB 8085 ZTS ROW?
The JCB 8087 series succeeded the 8085 ZTS ROW in JCB's mini excavator lineup.
What 8085(8085 ROW) owners discuss
What engine powers the JCB 8085 ZTS, and what are common fuel system quirks reported by owners?
What hydraulic behaviors and control issues are typical for the JCB 8085?
What undercarriage and wear patterns are associated with the JCB 8085 ZTS?
What are common electrical or sensor issues reported for this model?
What fluids and lubricants are specified for the JCB 8085 ZTS?
What are the key serial number and model identification details for the JCB 8085 ZTS?
What should be checked when buying a used JCB 8085 ZTS?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific 8085(8085 ROW) part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.