Komatsumobile debris crusher(no series)
Komatsu BR310JG-1(S/N 1002-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu BR310JG-1 (S/N 1002-UP) is a self-propelled, tracked single-toggle jaw crusher built for on-site demolition and construction/demolition debris recycling. It carries a feed opening of roughly 1,000 x 800 mm, a transport weight around 30,000 kg (66,000 lb), and a Komatsu SA6D95L-1 series diesel: a mechanical-injection, pre-common-rail turbocharged six-cylinder that is shared with the PC200-5/PC210-5/PC240-5 excavator engine family. Rated crushing capacity runs up to roughly 150 t/h depending on feed material and setting. The BR310JG-1 follows the smaller BR200J-1 in Komatsu's mobile crusher line and sits below the later, higher-output BR350JG-1 and BR380JG generations. Factory and dealer-fit configurations include an overband magnetic separator, a lateral side-discharge conveyor, an onboard maintenance crane, a dust-suppression sprinkler tank, and wireless remote control.
The BR310JG-1 is the Galeo-generation, KOMTRAX-equipped version of the BR300J-1: the crushing unit, undercarriage, and SA6D95L-1 engine carried over essentially unchanged, while the update added remote telematics monitoring and revised instrumentation/wiring for fleet management. Because both badges share one operation and maintenance manual and one shop/parts manual family, wear parts and service procedures cross over directly between them. In today's used and parts market, that shared lineage matters: these machines still turn up in active demolition and recycling fleets, and their engine and crusher wear components remain sourced through the same parts network that supports the PC200-5/PC210-5/PC240-5 excavator family, keeping the platform serviceable well after Komatsu moved new-machine buyers to larger, common-rail-engined BR350JG/BR380JG models.
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.
Komatsu BR310JG-1(S/N 1002-UP) specifications
Engine
| Engine model | Komatsu SA6D95L-1 series (factory parts/shop documentation for this serial range references SA6D95L-1C-C) |
| Cylinders | 6-cylinder inline diesel |
| Rated output | 132 kW at 2,150 rpm (180 PS/HP gross), per dealer fleet spec sheet |
| Aspiration | Turbocharged, direct injection diesel |
| Displacement | Not published in available spec sources for this exact configuration |
| Emissions tier | Not documented in available sources for this serial range |
Weights
| Operating weight (with grizzly feeder) | 30,000 kg (66,140 lb) |
| Note | Predecessor BR300J (pre-1999, no -1 suffix) is a different, lighter generation — figures not interchangeable with this S/N 1002-UP machine |
| Ground pressure | Not documented in available sources |
Dimensions
| Overall length | 8,140 mm (26 ft 8 in) |
| Overall width / transport width | 3,160 mm / 2,950 mm (10 ft 4 in / 9 ft 8 in) |
| Overall height / transport height | 3,465 mm / 3,100 mm (11 ft 4 in / 10 ft 2 in) |
| Track shoe width | 600 mm (23.6 in) |
| Track gauge (center distance) | 2,350 mm (7 ft 9 in) |
| Ground contact length | 3,830 mm (12 ft 7 in) |
Performance
| Travel speed | 2.8 km/h (1.7 mph) |
| Gradeability | 30 degrees |
| Jaw crusher size | 900 x 450 mm inlet |
| Maximum feed material size | 1,000 x 800 x 400 mm |
| Optimum feed material size | 600 x 500 x 400 mm |
| Discharge gap adjustment range | 50 to 120 mm |
| Processing capacity | Approx. 46 to 156 t/h depending on discharge screen size (varies by material and grizzly setting) |
Service capacities (summary)
| Fuel tank | 310 L (81.9 US gal) |
| Hydraulic oil tank | 240 L (63.4 US gal) |
| Engine oil capacity | Not documented in available sources — verify with Komatsu dealer |
| Cooling system capacity | Not documented in available sources — verify with Komatsu dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
BR310JG-1(S/N 1002-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Not documented in public sources for this exact serial range; the SA6D95L-1 family engine used across this chassis class typically fills in the 14-17 L (3.7-4.5 US gal) range depending on sub-variant, but this figure is not confirmed against the BR310JG-1(S/N 1002-UP) OMM itself - verify with your dealer or the factory refill table before servicing. | Komatsu Genuine EO diesel engine oil, viscosity grade selected by ambient temperature per the OMM's engine oil viscosity chart (typically SAE 10W-30 or 15W-40 for temperate climates, lighter grades such as 0W-30/5W-30 or 10W for cold-climate starts). Use an API CH-4/CI-4 equivalent heavy-duty diesel oil if Komatsu Genuine EO is unavailable. |
| Cooling system | Not documented in public sources for this exact serial range - verify with your dealer or the factory refill table. | Komatsu Super Coolant (AF-NAC) type antifreeze/coolant, pre-mixed or diluted per the OMM's climate table; do not mix coolant types. |
| Fuel tank | Not documented in public sources for this exact serial range - varies by configuration/series across the BR-series crusher line (comparable crawler-mounted crushers in this class commonly carry roughly 200-300 L / 53-79 US gal, but no figure is confirmed specifically for the BR310JG-1) - verify with your dealer or the factory refill table. | Automotive diesel fuel meeting the sulfur-content and cetane requirements listed in the OMM; use winter-grade diesel or a cold-flow additive in low ambient temperatures per Komatsu's climate guidance. |
| Hydraulic tank | Not documented in public sources for this exact serial range - verify with your dealer or the factory refill table. | Komatsu Genuine HO hydraulic oil, viscosity grade selected by ambient temperature per the OMM's hydraulic oil chart. |
| Hydraulic system total (tank + lines + cylinders + coolers) | Not documented in public sources for this exact serial range - varies by configuration/series - verify with your dealer or the factory refill table. | Komatsu Genuine HO hydraulic oil, matched viscosity grade to the tank fill above. |
| Final drive / travel reduction gear (each side) | Not documented in public sources for this exact serial range - verify with your dealer or the factory refill table. | Komatsu Genuine TO powertrain/gear oil (TO10 or TO30 grade per the OMM's temperature chart), or Komatsu AXO axle oil if the OMM specifies it for this component. |
| Crusher drive / gearbox lubrication points (jaw crusher bearing, conveyor and feeder drives) | Not documented in public sources for this exact serial range; comparable Komatsu crawler-mounted crusher gearboxes in this class typically take small individual fills (well under 10 L each) - verify with your dealer or the factory refill table. | Komatsu Genuine TO powertrain/gear oil per the OMM's component-by-component chart. |
| Grease points (undercarriage, crusher pivots, conveyor idlers, cylinder pins) | Spec only - no volume applicable; grease per the OMM's scheduled interval at each fitting. | Komatsu Genuine G2-LI lithium EP multipurpose grease (or equivalent NLGI 2 lithium EP grease) for general chassis and crusher pivot points. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu BR310JG-1(S/N 1002-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the BR310JG-1(S/N 1002-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Track jaw plate wear as a percent-remaining figure rather than waiting for chamber choke-up, and log it against tonnage crushed. Pull SA6D95L-1 engine oil samples at scheduled changes and watch for early metal counts that flag main-bearing oil starvation before it causes piston cocking or cylinder-wall scoring. Monitor the crusher-circuit pressure switch and feeder relief valve for signal drift, since both are recurring wear points on this platform. Use KOMTRAX/Galeo hour and fault logs to catch governor rattle or hard-starting trends before they strand the crusher.
Corrective & Common Repairs
Hard starting and governor rattle on the SA6D95L-1 are known complaints on this engine family; check fuel return lines, injection pump timing, and the battery/starter circuit before condemning the injection pump, and dealer-verify given the associated main-bearing failure risk. Reseat or replace toggle plate and jaw plate bolts when chamber vibration increases. Address oil cooler seepage at the core-to-tank fittings, a repeat issue on this crusher line, before it drops oil or coolant level unnoticed.
Overhaul & Rebuild Points
At major overhaul, inspect the eccentric shaft bearings, toggle seat, and pitman bushings together; wear in one accelerates wear in the others and shortens jaw plate life. Rebuild the crusher-drive belt set and flywheel coupling as a unit rather than piecemeal. On the engine, pull the main bearings given this family's documented oil-starvation risk, and check cylinder walls for scoring if run history includes any low-oil-pressure events. Undercarriage rebuild should cover track rollers, idlers, and final drive reduction gear oil together.
Seasonal & Environment Servicing
Demolition and recycling sites load the feeder and crushing chamber with fine debris and rebar dust; step up grease-point and air-intake filter checks in dusty conditions to protect the SA6D95L-1's turbocharger and eccentric shaft bearings. In cold climates, run the correct season-grade engine oil and coolant mix before start-up to reduce this engine's known hard-starting tendency. Flush and inspect the dust-suppression sprinkler tank and lines seasonally so they don't freeze or clog with fines between jobs.
BR310JG-1(S/N 1002-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 07000-02080 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 07000-02075 | O-Ring,Steering Oil Filter | Lubrication service | Check fitment → |
| 08036-01414 | Clip,(For Add.Filter)(Except Japan) | Scheduled service item | Check fitment → |
| 07002-03334 | O-Ring, At Transmission Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
BR310JG-1(S/N 1002-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 7RE1KB | Crusher ON switch circuit, short circuit | Chafed or pinched harness wire shorting to ground/frame near the crusher control switch, or a failed switch contact | Inspect the crusher ON switch and its harness routing for damage; check continuity to ground before replacing the switch |
| 7RE2KA | Crusher OFF switch circuit, open circuit | Broken wire, corroded or loose connector pin, or failed switch contact in the crusher OFF circuit | Check the connector at the crusher OFF switch for corrosion/looseness, then verify continuity through the harness back to the controller |
| 7RE3KB | Crusher forward (jaw drive) switch circuit, short circuit | Damaged harness insulation at the operator panel or crusher drive switch shorting to another circuit | Trace and inspect the FWD switch wiring for chafe points; test switch resistance before condemning the controller |
| 7RE4KB | Crusher reverse (jam-clear) switch circuit, short circuit | Same failure pattern as the FWD switch circuit: pinched harness or internal switch short | Inspect REV switch and harness for shorted insulation; confirm proper isolation before returning to service |
| 7RC1KB | Main (discharge) conveyor ON switch circuit, short circuit | Harness damage or switch fault on the main conveyor start circuit, often from vibration wear at cable clamps | Inspect conveyor start switch and harness runs along the conveyor frame for chafing or pinch points |
| 7RC2KA | Main (discharge) conveyor OFF switch circuit, open circuit | Broken conductor or corroded connector in the conveyor stop circuit | Check connector pins and wire continuity at the conveyor OFF switch before replacing components |
| 7RE6KB | Muck (feeder) conveyor ON switch circuit, short circuit | Harness insulation damage near the feeder conveyor switch, common where the harness crosses moving frame sections | Inspect the feeder conveyor switch harness for wear points and confirm switch isolation with a meter |
| 7RE8KB | Magnetic separator ON switch circuit, short circuit | Wiring fault on the optional magnetic separator control circuit; only applies to units fitted with this attachment | Confirm the machine is equipped with the magnetic separator option, then inspect its switch and harness for a short before replacing parts |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
BR310JG-1(S/N 1002-UP) attachments & work tools
Jaw crushing chamber
Single-toggle jaw crusher with a feed opening around 1,000 x 800 mm (39 x 31 in) for this class; crushing performance runs up to roughly 150 t/h depending on feed material, gap setting, and configuration. Fixed and swing jaw faces are manganese-steel wear plates, and a toggle plate acts as a mechanical shear/overload protector ahead of the main frame.
Feeder and pre-screening grizzly
A vibrating feeder with an integrated pre-screening grizzly section loads the jaw chamber and pulls fines/undersize out ahead of crushing. This is standard equipment on self-propelled crushers in this class, not a bolt-on option.
Magnetic separator
An overband magnetic separator mounted above the discharge conveyor is offered as a factory option to pull rebar and tramp steel out of crushed debris. Clearance between the belt and the magnet is adjustable to suit material.
Discharge and side conveyors
The main discharge conveyor is extendable and foldable for transport width/height. A lateral (side) unload conveyor is offered as an option to stockpile crushed product away from the machine centerline instead of straight off the tail end.
Hopper/bunker configuration
Hopper side walls fold down for transport and raise for operation, sized to match the jaw inlet for this crusher class. This keeps transport width within road limits while giving a wider feed opening on site.
Maintenance crane
A small onboard crane is offered as a factory-fit option for lifting jaw plates and other heavy wear components during service, removing the need for external lifting equipment on site.
Dust suppression sprinkler
A water sprinkler tank with spray bar is offered as an option to knock down dust at the crusher inlet and along the discharge conveyor, useful for jobsite dust/environmental requirements.
Remote control operation
Crusher and travel functions can be run from a wireless remote-control pendant in addition to the onboard panel, letting the operator reposition the machine or clear blockages from a safe distance.
Undercarriage and mounting
This is a fully self-propelled tracked unit, not a carrier-mounted attachment, so it does not use excavator-style quick-coupler mounting. Track/pad width is in the typical 500-600 mm range seen on crushers this size for site mobility and transport.
Belt weighing / tonnage monitoring
Some units in this class are fitted with an aftermarket belt-weighing system on the discharge conveyor for tonnage tracking. This is a dealer/aftermarket accessory rather than a universal factory option, so availability varies by configuration.
All BR310JG-1(S/N 1002-UP) assemblies by section
Every catalogued assembly group for the Komatsu BR310JG-1(S/N 1002-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Control System And Main Frame
Komatsu : Br310jg-1(S/N 1002-Up) : Control System And Main Frame : Fuel Control And Linkage
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Control System And Main Frame : Main Frame
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***55 | Bolt,(For Reinforced Type) | 12 |
| 01***55 | Bolt,(Without Rops Guard? Canopy) | 10 |
Komatsu : Br310jg-1(S/N 1002-Up) : Control System And Main Frame : Travel Control Lever And Linkage(#1002-1032)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Control System And Main Frame : Travel Control Lever And Linkage(#1033-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Crusher Control System
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Check Valve
| 04***10 | Ring, Retaining | 1 |
| 20***90 | Poppet | 1 |
| 20***10 | Spring | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Motor (1/2)
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Motor (2/2)
| 07***22 | O-Ring,Lubricating Oil Pipe | 2 |
| 07***22 | Ring, Back-Up | 3 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 5 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (1/12) (Main Valve)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 6 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (10/12) (Crusher Lines)(1/2)
| 01***70 | Bolt, Accumulator Mounting Bracket | 1 |
| 01***25 | Screw | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (11/12) (Crusher Lines)(2/2)
| 01***25 | Bolt | 4 |
| 04***11 | Clamp, Vinyl | 1 |
| 07***48 | O-Ring, (Without Emergency Steering) | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (12/12) (Travel Lines)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
| 01***32 | Washer, (Without Emergency Steering) | 48 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (2/12) (Main Pump)
| 01***40 | Bolt, Mount Master Brake Cylinder | 10 |
| 01***80 | Bolt,(Not Shown) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (3/12) (Sub Pump)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (4/12) (Suction Line)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (5/12) (Oil Cooler Lines)
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***40 | Bolt,(With Service Valve R.H.) | 16 |
| 01***11 | Nut,(With Under Mirror) | 8 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (6/12) (Return Lines)
| 01***85 | Bolt,(For 2nd Travel Speed) (Op) | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
| 01***11 | Nut,(With Under Mirror) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (7/12) (Drain Lines)(1/2)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 5 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 5 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 6 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (8/12) (Drain Lines)(2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 04***12 | Clip,See Fig. K4010-41a1 | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Crusher Piping (9/12) (Deliverry Lines)
| 01***32 | Washer, (Without Emergency Steering) | 32 |
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 2 |
| 07***07 | Plug,Housing No.2?3?4?5?6 | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Feeder Conveyor Piping (1/18) (Feeder Line) (1/3)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***25 | Bolt - Valve To Bracket Mounting | 3 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Feeder Conveyor Piping (2/18) (Feeder Line) (2/3)
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***80 | Bolt,(Not Shown) | 3 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : High-Low Valve
| 20***60 | Block | 1 |
| 20***10 | Solenoid Valve | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Control Valve (1/7)
| 01***25 | Bolt,Without Revolution Sensor | 6 |
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***55 | Bolt,(10m) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Control Valve (2/7)
| 01***20 | Bolt, Mount Spool Covers | 22 |
| 04***08 | Pin, Dowel | 1 |
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Control Valve (3/7)
| 07***09 | O-Ring,(For Dual Tilt Dozer) | 2 |
| 07***10 | O-Ring,Plate | 1 |
| 07***18 | O-Ring, Divider Valve Mounting | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Control Valve (4/7)
| 01***20 | Bolt, Mount Spool Covers | 16 |
| 01***25 | Bolt | 1 |
| 01***30 | Bolt (Itl) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Control Valve (5/7)
| 07***23 | O-Ring,(F2320-62a0 -18 ) | 2 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 2 |
| 07***12 | Plug,(B) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Control Valve (6/7)
| 01***11 | Nut - Mounting | 2 |
| 07***11 | O-Ring (Kit) | 2 |
| 07***12 | O-Ring (Itl) | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Control Valve (7/7)
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 3 |
| 70***90 | O-Ring,Suction | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (1/13) (Unit)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***60 | Bolt, Trunnion Cap | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 8 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (10/13) (Cut Off And Negative Control Valve? Rear)
| 70***11 | Valve Ass'Y,Co And Nc | 1 |
| (****0) | Plug | 1 |
| (****1) | O-Ring | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (11/13) (Torque Variable Control Valve)
| 70***21 | Valve Ass'Y,Tvc | 1 |
| (7***1) | Servo Valve Ass'Y,Rear | 1 |
| (****9) | Washer, Spring | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (12/13) (Gear Pump)
| 07***12 | Plug,Taper | 1 |
| 70***30 | Pump Assembly | 1 |
| 70***51 | Strainer, Strainer; Komatsu S/N 22001 & Abv. - Was 704-28-02751 | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (13/13) (Relief Valve)
| 07***10 | O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-02010 | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
| 70***10 | O-Ring (Kit) | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (2/13) (Pump Sub Ass'Y? Front)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***35 | Screw | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (3/13) (Pump Sub Ass'Y? Center)
| 04***18 | Bolt, Eye | 1 |
| (****2) | Impeller | 1 |
| (****5) | Washer | 8 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (4/13) (Pump Sub Ass'Y? Rear)
| 01***35 | Screw | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 04***18 | Bolt, Eye | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (5/13) (Servo Valve? Front) (1/2)
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
| 07***11 | O-Ring (Kit) | 2 |
| 07***48 | O-Ring,(F4350-64a0 -21 ) | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (6/13) (Servo Valve? Front) (2/2)
| 70***01 | Servo Valve Sub A.,Front | 1 |
| (****3) | O-Ring | 1 |
| (****9) | Washer, Spring | 6 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (7/13) (Cut Off And Negative Control Valve? Front)
| 07***23 | O-Ring,(F4320-61a0 -29 ) | 1 |
| 07***07 | Plug,Housing No.2?3?4?5?6 | 1 |
| 70***11 | Valve Ass'Y,Co And Nc | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (8/13) (Servo Valve? Rear) (1/2)
| 01***12 | Bolt (M8-1.25x12) | 1 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Pump (9/13) (Servo Valve? Rear) (2/2)
| 70***01 | Servo Valve Sub A.,Rear | 1 |
| (****3) | O-Ring | 1 |
| (7***1) | Servo Valve Ass'Y,Rear | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Hydraulic Tank
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 8 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 4 |
| 01***16 | Screw, Mount Parking Lights | 6 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Lock Valve
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 07***20 | O-Ring,Relief Valve | 1 |
| 07***30 | O-Ring,Boom (For 50 Feet Long Front) | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Main Filter
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : P.P.C. Valve (For Travel)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 07***21 | O-Ring,Water Piping | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Relief Valve (For Feeder And Conveyer)
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Slow Return Valve
| 20***40 | Body | 2 |
| 20***50 | Poppet | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Control Piping(#1002-1041)
| 01***30 | Bolt,(For Mechanical Governor) | 16 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 16 |
| 01***32 | Washer, (Without Emergency Steering) | 16 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Control Piping(#1042-)
| 01***32 | Washer, (Without Emergency Steering) | 32 |
| 07***25 | O-Ring,(See Fig. H0311-01a0-30) | 8 |
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Motor (1/2)(#1002-1010)
| 04***30 | Seal, Dust | 1 |
| 70***02 | Motor Sub Ass'Y | 1 |
| 70***02 | Travel Motor Ass'Y | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Motor (1/2)(#1011-1041)
| 04***30 | Seal, Dust | 1 |
| 07***85 | O-Ring,(Without Fuel Level Gauge) | 1 |
| 70***20 | Travel Motor Ass'Y | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Motor (1/3)(#1042-)
| 01***35 | Screw | 12 |
| 07***09 | O-Ring,(For Dual Tilt Dozer) | 2 |
| 07***40 | O-Ring, Divider Valve Mounting | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Motor (2/2)(#1002-1010)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
| 07***11 | O-Ring,(Tm8202-009) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Motor (2/2)(#1011-1041)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
| 01***32 | Washer, (Without Emergency Steering) | 12 |
| 07***11 | O-Ring,(Tm8202-009) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Motor (2/3)(#1042-)
| 04***25 | Ring, Snap | 1 |
| 70***90 | Seal,Oil | 1 |
| 70***30 | Spacer? 3.2mm | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Crusher Control System : Travel Motor (3/3)(#1042-)
| 70***10 | Valve Ass'Y,Relief | 2 |
| (7***0) | Motor Ass'Y | 2 |
Engine Related Parts And Electrical System
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : After Cooler Piping
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Air Cleaner Connection
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Control Box
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Damper
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 07***30 | Ring, Seal - Between Sections | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Electrical System (1/4) (Control Box Line)(#1002-1028)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Electrical System (1/4) (Control Box Line)(#1029-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 9 |
| 01***32 | Washer,(With Auto Emergency Steering) | 14 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Electrical System (2/4) (Head Lamp And Horn)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 7 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Electrical System (3/4) (Battery And Wiring (Battery To Engine))
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Electrical System (4/4) (Feeder?Conveyor And Crusher Line)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 18 |
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***55 | Bolt, Mount Tube To Switch Pump | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 8 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Fan Net
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 20***10 | Net | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***40 | Bolt,(With Service Valve R.H.) | 1 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Oil Cooler
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 20***21 | Oil Cooler Ass'Y | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Radiator
| 01***16 | Bolt (With Air Heater & Conditioner) | 20 |
| 01***20 | Bolt? Wing,(Noise Suppression Spec.) | 6 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 26 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Radiator And Piping
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Radiator Mounting
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 3 |
| 01***80 | Bolt, Mount Tubes To Switch And Work Pumps | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Engine Related Parts And Electrical System : Sub Pump
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 6 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
Guard
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (1/16) (Hood)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (10/16) (L.H. Cover)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 13 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 20 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 10 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (11/16) (R.H. Cover)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 10 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (12/16) (Upper Side Cover)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 28 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (13/16) (Rear Cover)(#1002-1033)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 10 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (13/16) (Rear Cover)(#1034-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 10 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (14/16) (Under Cover)(1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 18 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 13 |
| 01***32 | Washer,(With Auto Emergency Steering) | 18 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (15/16) (Under Cover)(2/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 20***17 | Cover | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (16/16) (Air Intake Unit)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 10 |
| 01***40 | Nut,(Noise Suppression Spec.) | 2 |
| 01***10 | Washer,See Fig. K4010-12a0 | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (2/16) (Frame)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 10 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (3/16) (L.H. Door)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 10 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (4/16) (R.H. Door) (1/2)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (5/16) (R.H. Door) (2/2)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (6/16) (Partition Plate)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***12 | Screw,(For Fixed Type Ripper) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (7/16) (Cab Cover)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 5 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 5 |
| 04***10 | Pin,Cotter (Without Towing Winch), Cotter Pin; Was 04050-11610 | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (8/16) (Battery Box)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 14 |
| 01***32 | Washer,(With Auto Emergency Steering) | 16 |
| 04***10 | Pin,Cotter (Without Towing Winch), Cotter Pin; Was 04050-11610 | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Guard : Guard (9/16) (Floor)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 18 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 16 |
Under Carriage
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Carrier Roller
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 06***10 | Bearing | 2 |
| 07***75 | O-Ring,Steering Oil Filter | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Center Guard
| 01***50 | Bolt, Fuel Tank Mounting - Front Left | 24 |
| 01***60 | Flat Washer - M20 (Hardened) | 24 |
| 20***12 | Guard | 6 |
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Final Drive(#1002-1041)
| 01***20 | Bolt,(With Auto Emergency Steering) | 12 |
| 01***65 | Bolt | 3 |
| 01***70 | Bolt,Rear Carrier (With Gumpad) | 40 |
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Final Drive(#1042-)
| 01***60 | Capscrew | 36 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 8 |
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Front Idler
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 2 |
| 07***24 | Plug | 1 |
| 20***90 | Pin,Dowel | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Idler Cushion
| 01***65 | Bolt - Battery Box | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Track Frame
| 82***11 | Frame,Track | 1 |
| 82***12 | Frame,Track | 1 |
| 82***13 | Frame,Track | 1 |
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Track Roller
| 01***45 | Washer,(Without R.O.P.S.) | 4 |
| 20***60 | O-Ring | 2 |
| 20***12 | Track Roller Ass'Y | 16 |
Komatsu : Br310jg-1(S/N 1002-Up) : Under Carriage : Track Shoe
| 15***20 | Nut? Shoe (Y0320-K1) | 458 |
| 20***13 | Track Link Ass'Y | 1 |
| 20***14 | Track Shoe Ass'Y | 1 |
BR310JG-1(S/N 1002-UP) serial number reference
The PIN/nameplate on the BR310JG-1 mobile crusher is mounted on the main frame, typically near the operator's platform or engine compartment access door. Read it as the full model code BR310JG-1 followed by the running serial number (e.g. 1002, 1003...); there is no separate 3-letter alpha block ahead of the digits the way Komatsu excavators use. Confirm the exact serial number against the plate itself or the parts book cover page, since this model was built in a single serial block rather than multiple sub-ranges.
| Prefix | Identifies | Notes |
|---|---|---|
| 1002-UP | BR310JG-1 (JPN) mobile crusher — sole documented serial block | Factory parts book and shop manual for this model are issued for the model code BR310JG-1(JPN), serial number 1002 and up, as a single block. No distinct 3-character alpha PIN prefix (the scheme used on Komatsu excavators, e.g. K/A-series) is documented for this model — the model code plus the plain running serial number is the identifying scheme, matching the pattern used on other BR-series mobile crushers. Engine fitted is the SA6D95L, shared with the PC200-5 excavator family; this is tied via parts and turbocharger cross-reference listings rather than a factory spec sheet naming the engine directly for this model, so confirm the exact engine suffix with your dealer. Sibling base model BR300J-1 runs its own separate serial block starting at 1001 and is a distinct model number, not a prefix variant of the BR310JG-1 — do not merge the two. |
Frequently asked questions
What engine does the Komatsu BR310JG-1 (S/N 1002-UP) use?
A Komatsu SA6D95L-1 series diesel: a turbocharged, mechanical-injection (pre-common-rail) inline six-cylinder, part of the same engine family used in the PC200-5/PC210-5/PC240-5 excavators.
What is the operating weight of the Komatsu BR310JG-1 (S/N 1002-UP)?
Around 30,000 kg (66,000 lb) transport weight. Actual weight varies with installed options such as the overband magnetic separator, side-discharge conveyor, and dust-suppression tank.
What replaced the Komatsu BR310JG-1?
Komatsu carried the self-propelled tracked jaw crusher line forward into the BR350JG-1 and later BR380JG generations, which stepped up engine output and crushing capacity while keeping the same overall machine layout.
What BR310JG-1(S/N 1002-UP) owners discuss
How does the SA6D95L-1 engine on the BR310JG-1 hold up in day-to-day crushing work?
This engine family has a long track record in Komatsu machines of this class and is generally regarded as tough and low-maintenance when fed clean fuel and serviced on schedule. The recurring complaint is hard starting in cold weather, usually traced to clogged fuel filters, weak glow plugs, or a tired battery rather than the engine itself. A rattling or knocking noise from the governor area on this engine family is often worn governor linkage or gears, not a bottom-end problem, but it should still be checked promptly. Dust and fines from demolition debris shorten air filter and fuel filter life faster than on a standard excavator doing dirt work, so filter intervals often need tightening from the book schedule.
What hydraulic behavior is typical for the crusher, feeder, and conveyor circuits?
The jaw, vibrating feeder, and discharge conveyor are all hydraulically driven off PPC-controlled circuits, and the feeder/conveyor relief valve is a routine wear and adjustment item rather than a sign of a bigger problem. Slow, gradual oil loss around the oil cooler and its hose fittings has been reported on older units in this crusher line and is worth checking at every service, not just when a leak becomes visible on the ground. Sluggish feeder or conveyor response after long idle periods is commonly cold, thick hydraulic oil rather than a pump fault, and it clears up once the system reaches operating temperature.
What undercarriage wear pattern should owners expect on this machine?
The track and undercarriage components are the same general design used on Komatsu excavators of similar weight class, so wear behavior is familiar to anyone who has run a comparable excavator. Because this machine works in crushed aggregate, concrete fines, and demolition dust rather than clean dirt, rollers, idlers, and sprockets tend to pack with abrasive fines and wear faster than they would on typical earthmoving duty. Track tension should be checked more often than the standard interval for this reason, since packed fines can make tension read tighter than it actually is.
The toggle plate seems to wear or fail more than other parts. Is that normal?
Yes. The toggle plate is intentionally the weakest link in the crushing chamber. It is meant to bend or shear before an uncrushable object (rebar, tramp metal, oversized concrete chunk) can damage the eccentric shaft, pitman, or flywheel. A rhythmic knocking sound from the toggle area usually means the toggle seat has worn and lost its oil film, which accelerates dry metal-on-metal wear. Keeping the toggle seats greased and dust-free, and keeping a spare toggle plate on hand, is standard practice for this class of jaw crusher to avoid an unplanned multi-day shutdown.
What electrical or sensor faults come up on the Galeo monitor panel?
The Galeo monitor system on this machine reports failure codes tied to sensor circuits — engine speed sensor backup, sensor supply voltage, and pressure switches on the crusher/feeder hydraulic circuit are common sources of a fault code. A pressure switch failure on the crusher control circuit is a recurring wear item across this crusher family and is usually a straightforward swap once diagnosed. When a code appears, write down the exact code shown on the panel before calling for support, since the code (not just the symptom) determines the fix.
Is there a known engine failure mode worth watching for on this engine family?
A documented failure mode on this engine family involves a worn main bearing allowing enough play that a piston cocks in its bore and scores the cylinder wall. This kind of damage generally follows extended oil change intervals, low-quality fuel, or contamination rather than a design flaw, which is why oil condition and change intervals matter more on this engine than on newer electronically-controlled diesels. Any sign of low oil pressure, metallic knock, or metal in the oil should be treated as urgent. Have your dealer verify main bearing clearances and run an oil analysis before returning the machine to service.
What should I check before buying a used BR310JG-1?
Check remaining jaw plate thickness and look for even wear across the plate face; uneven wear points to feed or alignment issues. Check the toggle plate and toggle seat, and the pitman and flywheel bearings, for play or looseness. Inspect the frame around the bearing housings for cracking, which signals the machine has been overloaded or fed oversized/uncrushable material. Pull maintenance records and weigh them against hours — a well-serviced higher-hour unit is usually a better buy than a low-hour machine with gaps in its service history. Look closely at the oil cooler and hose fittings for seepage, check undercarriage wear given the abrasive duty cycle, and check the discharge conveyor belt and rollers for wear from fines. Pull up the Galeo monitor panel and check for stored or recurring fault codes before finalizing a purchase. Have your dealer verify hydraulic relief pressures and run a full inspection before you commit.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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