Komatsutruckselectric (930e)
Komatsu AFE48-2(A/C DRIVE BOOK)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu 930E-2 is a two-axle, six-tire rigid-frame haul truck built for large surface mining, part of the first generation of regular-production ultra-class trucks rated above roughly 290 t (320 US ton) payload. Standard power is a Komatsu SSDA16V160 V-16 diesel rated 2014 kW (2,700 hp) gross at 1900 rpm; some -2 serial ranges left the factory with a Cummins QSK60 or a Detroit Diesel-derived V-16 instead, and either way the engine drives the main traction alternator only, with no mechanical link to the wheels. Empty weight runs near 202 t (445,846 lb) and maximum gross vehicle weight near 499 t (1,100,000 lb). Komatsu launched the platform as the 930E in 1995, followed by this 930E-2 in 1996 with larger radial tires and a payload increase, then the higher-output 930E-2SE altitude variant in 2000 and the 930E-3 in 2003. The AFE48-2(A/C DRIVE BOOK) documents the AC-drive propulsion group fitted to this 930E-2 generation: main alternator, control cabinet, wheel motors, and retarder grid. Chassis configurations include a standard flat-floor dump body, an exhaust-heated body for cold or sticky payload, and a rear tire/rim guarding package.
Engine sourcing is the main variance inside the 930E-2 production run: most trucks carry the Komatsu SSDA16V160, but a portion of the serial range used a Cummins QSK60 or a Detroit Diesel-derived engine instead, which changes the engine-side service and parts path without changing how the AC drive behaves. Later generations carried the same base engine pairing through the 930E-4 line but revised the drive electronics and, on some generations, moved to a heavier wheel motor, while the parallel 930E-2SE and its 930E-3SE/930E-4SE/930E-5SE successors used a larger 18-cylinder engine for high-altitude output. A large population of 930E-2 trucks remains in mining service worldwide decades after introduction, kept running through rebuilt or exchange alternators, wheel motors, and control cabinets rather than replacement. That sustains steady demand for this AC-drive parts book even as newer 930E generations enter service fleets, because the -2's drive-system hardware and control revisions are generation-specific and do not interchange cleanly with later trucks.
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 AFE48-2(A/C DRIVE BOOK) specifications
Engine
| Engine model | Komatsu SSDA16V160, 16-cylinder V-block diesel, 4-cycle. This is the standard-duty engine fitted to the 930E-2 generation electric drive truck that this AC drive book equips (1996 debut); the higher-output 930E-2SE variant introduced in 2000 used a different 18-cylinder engine and is not covered here. |
| Gross power (rated brake power) | 2014 kW (2,700 HP) @ 1900 rpm |
| Net flywheel power | 1902 kW (2,550 HP) @ 1900 rpm |
| Displacement | 60 L (3,662 cu in), bore x stroke 159 x 190 mm |
| Emissions | Tier 1 compliant per factory literature for this engine/generation |
| Engine weight (wet) | 9608 kg (21,182 lb) |
Weights
| Maximum gross vehicle weight | 498,952 kg (1,100,000 lb) |
| Payload capacity | 290 t (320 US tons) |
| Empty vehicle weight | 202,232 kg (445,846 lb), wet with 50% fuel |
| Weight distribution, empty | Front axle 99,935 kg (220,319 lb, 49%); rear axle 102,297 kg (225,527 lb, 51%) |
| Weight distribution, loaded (max GVW) | Front axle 169,145 kg (372,900 lb, 34%); rear axle 329,807 kg (727,100 lb, 66%) |
Dimensions
| Overall length, travel position | 13.99 m (45'11") |
| Overall length, body raised | 15.32 m (50'3") |
| Overall width | 8.33 m (27'4") |
| Overall height, travel position | 7.32 m (24'0") |
| Overall height, body raised | 9.95 m (31'0") |
| Wheelbase | 6.35 m (20'10") |
| Turning circle diameter | 29.9 m (98'1") |
| Loading height | 7.01 m (22'10") |
| Standard tire size | 53/80R63 radial, rock service tubeless, on a 5-piece 914 x 1600 x 127 mm (36" x 63" x 5.0") rim |
Performance
| Maximum travel speed | 64.5 km/h (40 mph) at max GVW; company literature elsewhere rounds this to 64.3 km/h, same rating |
| Maximum gradeability | 20% at max GVW of 498,960 kg (1,100,000 lb) |
| Speed on 12% effective grade | 9.9 km/h (6.2 mph) |
| Speed on 8% effective grade | 15.0 km/h (9.3 mph) |
| Drive system | AC drive with two inverters, GTA-34 alternator feeding GDY85 AC induction traction wheel motors through 31.50:1 reduction outboard double-planetary final drives |
| Dynamic retarding | Continuous 2460 kW (3,300 HP); short-time maximum 4026 kW (5,400 HP), air-cooled blown grids |
| Service brake stopping performance | Oil-cooled multiple-disc brakes at each wheel; factory-tested stopping distance loaded came in well under the SAE J1473 maximum (about 57% of the allowed distance) |
Service capacities (summary)
| Fuel tank | 4542 L (1,200 US gal) |
| Hydraulic system | 1325 L (350 US gal) total system; hydraulic tank reservoir alone holds 947 L (250 US gal) |
| Engine oil (crankcase, incl. filters) | 280 L (74 US gal) |
| Cooling system | 594 L (157 US gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
AFE48-2(A/C DRIVE BOOK) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filters) | 280 L (74 US gal) | Komatsu EO series diesel engine oil, EO10W30-DH or EO15W40-DH grade (API CI-4, JASO DH-1). Use the 10W30 grade in colder ambient conditions and 15W40 in standard/warm climates. Standard fit is the Komatsu SSDA16V160 V-16; a Cummins QSK60 engine option was used on some 930E-2 serial ranges and may carry a different crankcase fill — confirm against the engine actually fitted. |
| Cooling system | 594 L (157 US gal) | Komatsu Super Coolant AF-NAC, an ethylene-glycol based, non-amine, non-nitrite coolant giving long-term freeze, corrosion, cavitation, and scale protection. Set concentration to the lowest expected ambient temperature at the site. |
| Fuel tank | 4542 L (1200 US gal) | Clean, low-sulfur No. 2-D diesel fuel. Use a winter-grade or treated fuel in cold climates to prevent gelling. |
| Hydraulic system (total — reservoir, lines, cylinders) | 1325 L (350 US gal) | Komatsu HO46-HM hydraulic oil (ISO VG46, DIN 51524 Part 2 class HLP) for standard ambient ranges. Komatsu HO56-HE (SAE 5W-30) is the cold-climate alternative for better low-temperature flow. |
| Hydraulic tank (reservoir only) | 947 L (250 US gal) | Same Komatsu HO46-HM hydraulic oil (or HO56-HE in cold climates) used throughout the hydraulic circuit. |
| Final drive / wheel motor gear box (each) | 76 L (20 US gal) per motorized wheel | Komatsu TO series powertrain oil, TO30 grade (SAE 30W, API CD) for standard climates; TO10 (SAE 10W) in cold climates. Fill applies to the rear motorized wheels only — front wheels are non-driven and carry no gear oil. |
| Grease (chassis and auto-lubrication points) | Spec only — no fixed system capacity; fed continuously through the ground-level auto-lubrication system | Komatsu G2-LI multipurpose lithium EP2 grease, effective roughly -20 degC to +120 degC, applied at pivots, pins, and bushings. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu AFE48-2(A/C DRIVE BOOK) 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 AFE48-2(A/C DRIVE BOOK) beyond the schedule
Predictive Maintenance & Fluid Analysis
Run oil analysis across the engine crankcase (grade depends on whether the truck carries the standard SSDA16V160 or a Cummins/Detroit-Diesel alternate), wheel motor gear oil at the rear hubs, and hydraulic system oil. Metal content in wheel motor gear oil is the earliest warning of a weeping hub seal, before hydraulic and gear oil cross-contaminate. Pair fluid sampling with periodic insulation-resistance testing on the main alternator and wheel motor windings, and review control cabinet ground-fault trip logs to catch moisture intrusion before it becomes a drive fault.
Corrective & Common Repairs
The wheel motor hub seal separating gear oil from the wheel-end hydraulic circuit is the most common AC-drive repair; a weeping seal lets fines and cross-contaminated fluid reach the hydraulic system before bearing damage shows up. Hoist cylinder rod seals around the cushion valve wear and weep after years of dump cycles, usually addressed with a reseal rather than a cylinder swap. Ground-fault trips on the control cabinet most often trace to moisture or contamination at wheel motor cabling and connectors rather than a failed alternator or motor.
Overhaul & Rebuild Points
Alternator brushes, slip rings, and the commutator area wear steadily under continuous mining duty and are a recurring rebuild item, along with wheel motor bearings and drive-end seals once gear-oil analysis or hub inspection shows wear. Control cabinet contactors and relays get replaced as a group when heat cycling and arcing show up during inspection. Retarder grid resistor elements and the blower motor wear from constant retarding duty and get inspected for airflow restriction at overhaul. Engine major overhaul timing depends on which engine is fitted; confirm the serial-specific engine before scheduling.
Seasonal & Environment Servicing
Switch engine oil, wheel motor gear oil, and hydraulic oil to their cold-climate grades and set coolant concentration to the site's lowest expected ambient before winter. Dusty or high-altitude sites clog alternator air-inlet screens and control cabinet cooling fans faster than the standard filter interval assumes, so shorten cleaning cycles in those conditions. Wet or humid sites drive most of the moisture-related ground-fault trips on the AC-drive control cabinet, so keep grid housing covers and control cabinet door seals tight year-round, not just at scheduled service.
AFE48-2(A/C DRIVE BOOK) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| GE0483 | Diode, Rectifier (Battery Filter Panel) | Scheduled service item | Check fitment → |
| GE0148 | Filter Panel Assembly | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
AFE48-2(A/C DRIVE BOOK) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 002 HIGH GROUND FAULT | Leakage current to frame/ground on the high-voltage AC drive circuit exceeded the trip threshold; propulsion system controller sets a No Power restriction. | Moisture or contamination in the retarding grid enclosure, chafed high-voltage cable insulation, or a shorted wheel motor winding. | Inspect the retard grid compartment for water or debris intrusion, check high-voltage cable insulation resistance, and megger the wheel motors before returning the truck to service. |
| 003 FAILED DIODE | Propulsion system controller detects a failed rectifier diode in the alternator/drive rectifier bridge; sets No Power. | Diode breakdown from thermal cycling or a transient overvoltage event. | Check the alternator rectifier diode bank for open or shorted diodes, replace the failed diode assembly, and verify with a self-load test. |
| 005 DRIVE SYSTEM OVERTEMP | A propulsion component (alternator, inverter, stator/rotor module, or GTO/diode assembly) exceeded its temperature limit; the subcode identifies which component. Sets No Propel. | Blocked cooling airflow, dirty grid blower filters, or sustained high-load operation on grade or in hot ambient conditions. | Match the subcode to the affected component, check its blower motor and cooling ducting, let the system cool, then clear the alarm before resuming propel. |
| 006 COMMUNICATION FAILED | Propulsion system controller lost communication with a drive system module; sets No Power. | Damaged or loose data cable/connector, loss of module power, or electrical noise on the communication bus. | Check wiring and connectors between the controller and the affected module, verify module power supply, reseat connections, and cycle key power. |
| 007 INVERTER COMMUNICATION FAILED | Propulsion system controller lost communication with inverter 1 or inverter 2 (subcode identifies which); sets No Power. | Faulty fiber-optic or data link between the controller and the named inverter, or an inverter control card fault. | Inspect the fiber-optic/data link to the affected inverter for damage, reseat connections, and replace the inverter control card if the fault repeats. |
| 008 DC LINK OVERLOAD | DC link current between the alternator rectifier and the inverters exceeded the allowable limit, tagged as occurring in propel, in retard, or as an instantaneous spike. Sets No Power. | Excessive load demand, a retarding grid resistor fault, or a shorted component downstream of the link. | Review the event log for load conditions at the time of the fault, inspect the retard grid and inverter output for shorts, and check DC link current sensor calibration. |
| 009 ALT FIELD OVERCURRENT | Alternator field excitation current exceeded its limit, reported with or without persistence; sets No Power. | Field winding short, a faulty field regulator, or an excitation control fault in the propulsion controller. | Check alternator field winding resistance and field regulator output, then inspect the controller's excitation control circuit. |
| 011 RETARD LEVER BAD | Retarder lever position sensor voltage is outside its valid range, reported as too high or too low; sets No Propel. | Worn or misadjusted lever potentiometer, broken wiring, or a corroded connector. | Check the retard lever sensor voltage against spec, inspect wiring and connector, then adjust or replace the sensor. |
| 012 RETARD PEDAL BAD | Retarder pedal position sensor voltage is outside its valid range, reported as too high or too low; sets No Propel. | Worn pedal potentiometer, linkage misadjustment, or a wiring fault. | Check the pedal sensor voltage, inspect linkage and wiring, then adjust or replace the sensor. |
| 089 ENGINE SPEED MISMATCH | Engine speed requested by the AC drive control does not match the actual engine speed feedback; sets a propulsion speed limit. | Governor or engine control module speed-control fault, throttle linkage issue, or a faulty engine speed signal to the propulsion controller. | Compare requested versus actual rpm on the display panel, check the engine governor/ECM speed control and speed sensor, and verify the engine-to-controller speed signal wiring. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
AFE48-2(A/C DRIVE BOOK) attachments & work tools
Work-tool / attachment ecosystem
This class of machine is a rigid-frame mining haul truck, not an excavator or loader, so it carries no interchangeable work-tool lineup and no quick-coupler system. The only implement is its own fixed dump body, permanently pinned to the frame.
Dump body configuration
Standard body is an all-welded steel flat-floor design with horizontal bolsters, full canopy/eyebrow, and rear wheel rock ejectors built in. Payload class runs roughly 290 t (320 short tons), trending higher on later revisions within the family; exact rating varies by series/configuration.
Heated body option
A pivot exhaust heating arrangement is offered as a factory option to keep the body floor warm in cold climates or with sticky/frozen payloads, reducing carryback. This is an option on the body, not a swappable attachment.
Hoist / body-mounting arrangement
The body is raised by twin multi-stage, dual-acting hydraulic hoist cylinders with internal cushioning rather than any quick-attach linkage. Body-up sling and rubber body-to-frame mounts are standard fitment, not optional tooling.
Tire and rim guarding
Rock ejectors are fitted between the rear dual wheels as standard guarding against material lodging in the tires. A multi-piece Smart Rim wheel system is available on the class to ease rear-tire service without pulling the full rim; availability varies by series.
Autonomous haulage retrofit
Existing trucks in this class can be converted for autonomous (driverless) haulage operation through a factory retrofit kit rather than a physical work-tool change. This is a controls/automation option layered onto the standard truck, offered across the model family and not unique to one serial range.
All AFE48-2(A/C DRIVE BOOK) assemblies by section
Every catalogued assembly group for the Komatsu AFE48-2(A/C DRIVE BOOK). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Alternator Group
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Brush Holder (Vj1024) : Unit_01_of_02
| VE***25 | Bolt, Hex Head - 5/16"-18, 1 1/4" Long | 6 |
| VS***23 | Washer, Brass - 11/16" Od | 6 |
| VE***26 | Nut, Hex - 5/16"-18 | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Brush Holder (Vj1024) : Unit_02_of_02
| VE***25 | Bolt, Hex Head - 5/16"-18, 1 1/4" Long | 6 |
| VS***23 | Washer, Brass - 11/16" Od | 6 |
| VE***26 | Nut, Hex - 5/16"-18 | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Brush Holder - 3
| VE***25 | Bolt, Hex Head - 5/16"-18, 1 1/4" Long | 6 |
| VS***23 | Washer, Brass - 11/16" Od | 6 |
| VE***26 | Nut, Hex - 5/16"-18 | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Engine Mount End : Unit_01_of_02
| BF***72 | Shaft (1) | 1 |
| BF***41 | Adaptor | 1 |
| BF***28 | Cable Marker (Marked T15) | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Engine Mount End : Unit_02_of_02
| BF***72 | Shaft (1) | 1 |
| BF***41 | Adaptor | 1 |
| BF***28 | Cable Marker (Marked T15) | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Engine Mount End - 3
| BF***09 | Rotor Assembly (See Fig 64133e) | 1 |
| BF***54 | Cable Marker (Marked T16) | 1 |
| BF***64 | Adaptor | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Field Connector (Brush Holder) : Unit_02_of_02
| GE***29 | Cable, Tertiary | 1 |
| GE***30 | Cable, Tertiary | 1 |
| VE***64 | Washer, Concave - 1/4" (Spring Steel) | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Field Connector (Brush Holder) : Unit_01_of_02
| GE***29 | Cable, Tertiary | 1 |
| GE***30 | Cable, Tertiary | 1 |
| VE***64 | Washer, Concave - 1/4" (Spring Steel) | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Field Connector (Brush Holder) - 3
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Rotor (Ve4251) : Unit_01_of_02
| BF***07 | Tape, Glass - 0.015" Thick, 1" Wide | 0 |
| BF***60 | Brace, Coil (1) | 8 |
| BF***80 | Collector Ring Assembly (1) | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Rotor (Ve4251) : Unit_02_of_02
| BF***07 | Tape, Glass - 0.015" Thick, 1" Wide | 0 |
| BF***33 | Strip, Brazing | 16 |
| BF***05 | Tie Ring, Insulated - 15 1/2" Id | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Rotor - 3 (Bf4609)
| BF***07 | Tape, Glass - 0.015" Thick, 1" Wide | 0 |
| BF***05 | Tie Ring, Insulated - 15 1/2" Id | 1 |
| BF***60 | Brace, Coil (1) | 8 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Slip Ring End : Unit_02_of_02
| BF***83 | Cable Assembly W/Jumper | 3 |
| BF***32 | Sensor, Thermistor - 100,000 Ohm | 1 |
| BF***42 | Clamp Plate - 7 5/32" Long | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Slip Ring End : Unit_01_of_02
| BF***32 | Sensor, Thermistor - 100,000 Ohm | 1 |
| BF***80 | Collector Ring Assembly (1) | 1 |
| BF***31 | Panel, Ambient Air Temperature | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Slip Ring End - 3
| BF***42 | Clamp Plate - 7 5/32" Long | 1 |
| BF***80 | Collector Ring Assembly (1) | 1 |
| BF***53 | Capscrew - 5/16" - 18nc X 2 1/2" | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Stator : Unit_02_of_02
| GE***21 | Kit, Stator Rewind | 1 |
| GE***22 | Stator Rewind Kit (1) | 1 |
| GE***16 | Ring, Bus - Insulated | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Stator : Unit_01_of_02
| GE***21 | Kit, Stator Rewind | 1 |
| GE***22 | Stator Rewind Kit (1) | 1 |
| GE***16 | Ring, Bus - Insulated | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Stator - 3
| GE***21 | Kit, Stator Rewind | 1 |
| GE***22 | Stator Rewind Kit (1) | 1 |
| GE***16 | Ring, Bus - Insulated | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Tertiary Connection : Unit_02_of_02
| BF***54 | Cable Marker (Marked T16) | 1 |
| BF***53 | Cable Marker (Marked T15) | 1 |
| GE***25 | Plate, Front | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Tertiary Connection : Unit_01_of_02
| BF***28 | Cable Marker (Marked T15) | 1 |
| BF***29 | Cable Marker (Marked T16) | 1 |
| GE***25 | Plate, Front | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Alternator - Tertiary Connection - 3
| BF***54 | Cable Marker (Marked T16) | 1 |
| BF***53 | Cable Marker (Marked T15) | 1 |
| GE***25 | Plate, Front | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Drive System Alternator (Pb8990)
| BF***19 | Gasket | 0 |
| GE***38 | Cover | 1 |
| GE***25 | Plate, Front | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Drive System Alternator (Pc0283)
| BF***32 | Sensor, Thermistor - 100,000 Ohm | 1 |
| BF***31 | Panel, Ambient Air Temperature | 1 |
| GE***13 | Cover | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Alternator Group : Drive System Alternator - 3 (Pc0154)
| BF***32 | Sensor, Thermistor - 100,000 Ohm | 1 |
| BF***19 | Gasket | 0 |
| BF***31 | Panel, Ambient Air Temperature | 1 |
Aux. Blower Group
Komatsu : Afe48-2(A/C Drive Book) : Aux. Blower Group : Aux. Blower Assembly (Pb8991) : Unit_01_of_02
| GE***06 | Base, Blower Motor | 1 |
| GE***07 | Gasket - 19.5 Ft | 1 |
| GE***08 | Wheel, Blower - Cw | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Aux. Blower Group : Aux. Blower Assembly (Pb8991) : Unit_02_of_02
| BF***87 | Wheel, Blower - Cw | 1 |
| BF***88 | Wheel, Blower - Ccw | 1 |
| GE***06 | Base, Blower Motor | 1 |
Control Group
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Afse Panel Cover Assembly (Ve5132)
| PB***06 | Spacer - 1/2" Long | 2 |
| VE***73 | Gasket | 4 |
| VE***59 | Nut, Hex - #6 - 40nc (Zinc Pl) | 4 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Alternator Excitor (A.F.S.E.) (Ve5127)
| BF***32 | Sensor, Thermistor - 100,000 Ohm | 1 |
| C***6 | Bolt, Hex Head - 1/4" - 20, 3/4" Long | 10 |
| DC***84 | Lockwasher - 1/4" (Zinc Pl) | 0 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Alternator Excitor (A.F.S.E.) - 1 (Pb8838)
| C***6 | Bolt, Hex Head - 1/4" - 20, 3/4" Long | 10 |
| DC***84 | Lockwasher - 1/4" (Zinc Pl) | 0 |
| GE***46 | Flat Washer - #10 (Special) | 0 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Battery Filter Panel (Blfp) (Bf3903)
| GE***48 | Module | 1 |
| GE***98 | Resistor Assembly | 1 |
| GE***99 | Adhesive | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Contactor - R.P. (Ge0168)
| BF***05 | Machine Screw - # 10 - 32nc X 1 1/4" | 2 |
| BF***95 | Capscrew - 1/4" - 20nc X 3 1/4" | 2 |
| BF***90 | Armature Assembly | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Contactor G.F. - 1 (Tv3419)
| 12***86 | Flat Washer - 5/16" (Narrow), Washer; C|If Caseih Order ....... 1 495-21031 Nh Washer Is N.L.A. ....... 1 Nls; .312 X .734 X .051 | 6 |
| BF***90 | Armature Assembly | 1 |
| C***2 | Lockwasher - 3/8" (Qty. 10 Not Included In Assembly) | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Front & Top View)
| BF***29 | Step Assembly | 1 |
| BF***94 | Cover Assembly | 1 |
| BF***87 | Gasket, Door | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Front & Top View) - 1
| BF***18 | Screw, Machine | 14 |
| BF***90 | Flat Washer - 5/16" (Narrow) Stainless Steel | 14 |
| BF***29 | Step Assembly | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Inside Lower Left Front)
| BF***08 | Shield, Glastic | 1 |
| BF***02 | Panel, Snubber Resistor | 6 |
| GE***63 | Bar, Bus | 5 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Inside Lower Right Front)
| BF***26 | Adaptor, Bus Bar | 12 |
| BF***06 | Retainer / With O-Ring | 12 |
| BF***02 | Panel, Snubber Resistor | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Inside Top Left Front)
| BF***21 | Assembly, Bus Bar -(Insulated) | 1 |
| BF***99 | Capscrew - 5/16" - 18nc X 3/4" | 4 |
| BF***05 | Adaptor | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Inside Top Left Front) - 1 : Unit_02_of_02
| BF***12 | Strip, Connection - 1 7/8" | 4 |
| BF***21 | Assembly, Bus Bar -(Insulated) | 1 |
| BF***99 | Capscrew - 5/16" - 18nc X 3/4" | 4 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Inside Top Left Front) - 1 : Unit_01_of_02
| BF***21 | Assembly, Bus Bar -(Insulated) | 1 |
| BF***99 | Capscrew - 5/16" - 18nc X 3/4" | 4 |
| BF***05 | Adaptor | 4 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Inside Top Right Front)
| BF***03 | Panel (See Index) | 1 |
| BF***42 | Board, Terminal | 5 |
| BF***22 | Capscrew - 5/16" - 18nc X 3" | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Inside Top Right Front) - 1
| BF***03 | Panel (See Index) | 1 |
| BF***42 | Board, Terminal | 5 |
| BF***22 | Capscrew - 5/16" - 18nc X 3" | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Left Side) - 1
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Lower Back Side)
| BF***07 | Trim, Plastic Edging | 0 |
| DC***84 | Lockwasher - 1/4" (Zinc Pl) | 0 |
| GE***15 | Bar, Bus | 4 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Lower Back Side) - 1
| BF***07 | Trim, Plastic Edging | 0 |
| DF***45 | Flat Washer - 1/4" | 8 |
| DC***84 | Lockwasher - 1/4" (Zinc Pl) | 0 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Right Side & Rear View)
| BF***18 | Screw, Machine | 2 |
| BF***90 | Flat Washer - 5/16" (Narrow) Stainless Steel | 2 |
| BF***91 | Lockwasher - 5/16" Stainless Steel | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Right Side & Rear View) - 1
| BF***18 | Screw, Machine | 2 |
| BF***90 | Flat Washer - 5/16" (Narrow) Stainless Steel | 2 |
| BF***91 | Lockwasher - 5/16" Stainless Steel | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Top Left View)
| BF***21 | Assembly, Bus Bar -(Insulated) | 1 |
| BF***05 | Adaptor | 2 |
| BF***42 | Board, Terminal | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Top Left View) - 1
| BF***21 | Assembly, Bus Bar -(Insulated) | 1 |
| BF***42 | Board, Terminal | 1 |
| BF***24 | Grommet, Rubber | 3 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet (Top Right View)
| BF***99 | Capscrew - 5/16" - 18nc X 3/4" | 0 |
| BF***42 | Board, Terminal | 3 |
| GE***15 | Bar, Bus | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet - Contactor Box
| BF***27 | Flat Washer | 2 |
| BF***99 | Capscrew - 5/16" - 18nc X 3/4" | 12 |
| BF***04 | Shield, Insulated - 3 1/2" (1 Hole) | 4 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet - Contactor Box - 1
| AK***04 | Module, Dual Diode | 1 |
| BF***27 | Flat Washer | 2 |
| BF***23 | Capscrew, Insulated/Nut & Flat Washer (Special) | 8 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet - Inverter
| BF***07 | Trim, Plastic Edging | 0 |
| BF***02 | Panel, Snubber Resistor | 6 |
| C***6 | Bolt, Hex Head - 1/4" - 20, 3/4" Long | 12 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Cabinet - Inverter - 1
| BF***07 | Trim, Plastic Edging | 0 |
| BF***02 | Panel, Snubber Resistor | 6 |
| C***6 | Bolt, Hex Head - 1/4" - 20, 3/4" Long | 12 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Panel - P.S.C. (Ge0339)
| GE***07 | Card - (Fb127) | 1 |
| GE***99 | Cover, Front | 1 |
| GE***13 | Card | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Control Panel - P.S.C. (Ge0505)
| DF***44 | Lockwasher - #6, Zinc Pl | 4 |
| GE***07 | Card - (Fb127) | 1 |
| GE***99 | Cover, Front | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Diode/Heat Sink Assembly (Ge0558)
| GE***59 | Sink, Heat | 12 |
| VE***36 | Grommet - 0.375" Id | 24 |
| VE***39 | Tube - 0.375" Id, 3.30" Long | 12 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Fault Detection Panel (Ge0627)
| GE***27 | Panel, Fault Detection (See Index) | 1 |
| VE***25 | Diode (In5062) | 2 |
| VE***12 | Resistor, 2 Watt - 27,000 Ohm | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Hardware, Decal & Misc.
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Panel - Rectifier (Pb6489)
| DF***45 | Flat Washer - 1/4" | 8 |
| PB***89 | Rectifier (See Preceding Pg) | 1 |
| TC***33 | Capscrew - 3/8" - 16nc X 3/4" | 10 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Panel - Rectifier - 1 (Ve4326)
| VE***36 | Grommet - 0.375" Id | 24 |
| VE***39 | Tube - 0.375" Id, 3.30" Long | 12 |
| VE***74 | Diode | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Position Sensor (Ve3530)
| BF***20 | Machine Screw - #6 - 32nc X 5/8" (Thread Cutting) | 5 |
| BF***74 | Cover | 1 |
| HE***25 | Washer - #6, Zinc Pl | 5 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Rectifier Panel (Ge0557)
| DF***45 | Flat Washer - 1/4" | 8 |
| DC***84 | Lockwasher - 1/4" (Zinc Pl) | 8 |
| GE***57 | Panel, Rectifier (See Index) | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Relay - Gfr & Cpr (Vg7043)
| SF***55 | Nut, Hex - #10 - 32nf (Zinc Pl) | 12 |
| VZ***58 | Flat Washer - #10 (Zinc Plated) | 12 |
| VS***55 | Base | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Terminal Boards
| GE***93 | Board, Terminal (See Fig 64033) | 1 |
| SF***55 | Nut, Hex - #10 - 32nf (Zinc Pl) | 1 |
| VE***49 | Fastener - For 0.131" To 0.135" Hole | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Control Group : Voltage Measuring Module (Vwm) (Ve6118)
| SF***55 | Nut, Hex - #10 - 32nf (Zinc Pl) | 8 |
| VE***28 | Cable, With Terminal | 1 |
| VS***34 | Grommet, Rubber | 1 |
Retarder Grid Group
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Blower Motor Commutator End (Ge0017)
| BF***88 | Washer, Plain - 1/2" | 4 |
| BF***03 | Varnish (1) | 0 |
| BF***86 | Head, Frame | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Blower Motor Field Installation
| BF***04 | Coil With Terminals, Exciting | 4 |
| BF***05 | Coil With Terminals, Commutating | 4 |
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 16 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Blower Motor Non-Commutator End Ge0017
| BF***85 | Head, Frame | 1 |
| BF***97 | Shaft (1) | 1 |
| BF***89 | Cotter Pin - 1/8" Diameter, 2 1/2" Long | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Brush Holder
| VJ***83 | Arm, Pressure | 1 |
| VS***76 | Spring | 1 |
| VJ***85 | Pin, Spring Dowel - 3/16" Diameter, 1 1/8" Long | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Brush Holder Wiring
| BF***86 | Head, Frame | 1 |
| DC***84 | Lockwasher - 1/4" (Zinc Pl) | 4 |
| GE***50 | Capscrew - 3/8" (Special) | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Retarding Grid Assembly
| GE***24 | Spacer Assembly | 4 |
| GE***29 | Tube | 10 |
| GE***34 | Cover, Bottom - 27 1/8" Long | 3 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Retarding Grid Assembly (High Altitude) (Pc0424)
| BF***88 | Washer, Plain - 1/2" | 0 |
| BF***99 | Capscrew - 5/16" - 18nc X 3/4" | 0 |
| GE***24 | Spacer Assembly | 4 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Retarding Grid Assembly (Pb8988)
| BF***88 | Washer, Plain - 1/2" | 0 |
| BF***99 | Capscrew - 5/16" - 18nc X 3/4" | 0 |
| GE***24 | Spacer Assembly | 4 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Retarding Grid Assembly (Pc0543)
| BF***88 | Washer, Plain - 1/2" | 0 |
| BF***99 | Capscrew - 5/16" - 18nc X 3/4" | 0 |
| C***6 | Bolt, Hex Head - 1/4" - 20, 3/4" Long | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Retarding Grid Assembly - 1 : Unit_02_of_02
| GE***24 | Spacer Assembly | 4 |
| GE***29 | Tube | 10 |
| GE***34 | Cover, Bottom - 27 1/8" Long | 3 |
Komatsu : Afe48-2(A/C Drive Book) : Retarder Grid Group : Retarding Grid Assembly - 1 : Unit_01_of_02
| GE***24 | Spacer Assembly | 4 |
| GE***29 | Tube | 10 |
| GE***15 | Cover W/ Cutouts | 2 |
Wheel Motor Group
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Carrier - Low Speed (Ge0631)
| BF***01 | Shaft, Planetary Pinion Gear | 4 |
| BF***02 | Carrier, Low Speed (1) | 1 |
| BF***03 | Gear, Planetary Pinion - Low Speed | 4 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Carrier Assembly - High Speed (Ge0392)
| GE***96 | Thread Lock | 0 |
| GE***98 | Shaft, Planetary Pinion Gear | 3 |
| GE***95 | Washer, Self-Locking - 1" | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Carrier Assembly - High Speed (Ge0416)
| BF***99 | Carrier, High Speed | 1 |
| BF***00 | Gear, Planetary Pinion - High Speed | 3 |
| GE***96 | Thread Lock | 0 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Carrier Assembly - Low Speed (Ge0552)
| GE***91 | Pin, Planetary Pinion Gear | 4 |
| GE***96 | Thread Lock | 0 |
| GE***03 | Capscrew - 1" - 8nc X 13" (12 Point Head) | 8 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Motor Assembly - Wheel (Ge0053)
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 0 |
| GE***18 | Deflector, Air | 1 |
| GE***15 | Ring, Bus (N) | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Motor Assembly - Wheel - 1 (Ge0053) : Unit_03_of_03
| BF***60 | Seal, Lip - 7.256" Od | 1 |
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 0 |
| GE***33 | Flinger | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Motor Assembly - Wheel - 1 (Ge0053) : Unit_01_of_03
| BF***60 | Seal, Lip - 7.256" Od | 1 |
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 0 |
| GE***33 | Flinger | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Motor Assembly - Wheel - 1 (Ge0053) : Unit_02_of_03
| BF***60 | Seal, Lip - 7.256" Od | 1 |
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 0 |
| GE***33 | Flinger | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Motor Assemlby - Wheel (Ge0053)
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 0 |
| GE***18 | Deflector, Air | 1 |
| GE***15 | Ring, Bus (N) | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Motor Assm - Wheel (Ge0053) : Unit_01_of_02
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 0 |
| GE***15 | Ring, Bus (N) | 1 |
| GE***24 | Frame, Head | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Motor Assm - Wheel (Ge0053) : Unit_02_of_02
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 0 |
| GE***15 | Ring, Bus (N) | 1 |
| GE***24 | Frame, Head | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Motor Assm - Wheel - 1 (Ge0053)
| C***0 | Bolt, Slotted Hex Head - 5/8" - 11, 2" Long | 0 |
| GE***33 | Flinger | 1 |
| GE***30 | Housing, Bearing | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Transmission Assembly
| BF***15 | Washer, Thrust | 1 |
| GE***77 | Flat Washer (Special) | 1 |
| GE***69 | Capscrew - 1/2" - 15nc X 1 3/4" (Socket Head) | 18 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Transmission, Wheel Motor
| BF***81 | Seal, Toric | 2 |
| BF***96 | Seal, O-Ring | 1 |
| D***0 | Capscrew - 1/2" - 13nc X 3/4" (Socket Head) (2) | 6 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly (Pc0303)
| D***0 | Capscrew - 1/2" - 13nc X 3/4" (Socket Head) (2) | 6 |
| ED***85 | Assembly, Rear Brake (See Index) | 1 |
| EF***95 | Flat Washer - 1 1/4" (Hardened) | 27 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly (Pc0461)
| D***0 | Capscrew - 1/2" - 13nc X 3/4" (Socket Head) (2) | 6 |
| ED***85 | Assembly, Rear Brake (See Index) | 1 |
| EF***95 | Flat Washer - 1 1/4" (Hardened) | 27 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly (Pc0666)
| D***0 | Capscrew - 1/2" - 13nc X 3/4" (Socket Head) (2) | 6 |
| EH***10 | Rear Brake Assembly (See Index) | 1 |
| GE***49 | Flat Washer - 1 1/4" (Hardened) | 27 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly (Pc0667)
| D***0 | Capscrew - 1/2" - 13nc X 3/4" (Socket Head) (2) | 6 |
| ED***85 | Assembly, Rear Brake (See Index) | 1 |
| EF***95 | Flat Washer - 1 1/4" (Hardened) | 27 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly (Pc0713)
| D***0 | Capscrew - 1/2" - 13nc X 3/4" (Socket Head) (2) | 6 |
| ED***85 | Assembly, Rear Brake (See Index) | 1 |
| EF***95 | Flat Washer - 1 1/4" (Hardened) | 27 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly - 1 (Pc0303)
| BF***01 | Pin, Pinion Gear | 4 |
| BF***02 | Carrier, Low Speed (1) | 1 |
| BF***99 | Carrier, High Speed | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly - 1 (Pc0666)
| BF***17 | Flat Washer - 3/4" (1) | 32 |
| BF***81 | Seal, Toric | 2 |
| BF***96 | Seal, O-Ring | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly - 1 (Pc0667)
| BF***16 | Carrier, Low | 1 |
| BF***17 | Flat Washer - 3/4" (1) | 16 |
| BF***81 | Seal, Toric | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly - 1 (Pc0713)
| BF***01 | Pin, Pinion Gear | 4 |
| BF***02 | Carrier, Low Speed (1) | 1 |
| BF***99 | Carrier, High Speed | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assembly - 1 (Pc0765)
| EH***83 | Adaptor, Packing Brake | 1 |
| GE***11 | Capscrew - 1" X 8nc X 4 1/2" | 12 |
| GE***49 | Rotor, Lock | 2 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assm (Pb9900)
| D***0 | Capscrew - 1/2" - 13nc X 3/4" (Socket Head) (2) | 6 |
| ED***85 | Assembly, Rear Brake (See Index) | 1 |
| EF***95 | Flat Washer - 1 1/4" (Hardened) | 27 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assm - 1
| BF***16 | Carrier, Low | 1 |
| BF***17 | Flat Washer - 3/4" (1) | 16 |
| BF***81 | Seal, Toric | 1 |
Komatsu : Afe48-2(A/C Drive Book) : Wheel Motor Group : Wheel Motor Assm - 1 (Pb9900)
| EF***74 | Carrier, Seal | 1 |
| EF***95 | Flat Washer - 1 1/4" (Hardened) | 36 |
| EC***62 | Stud, Headed (Included In Ef0701 Adaptor Ring Assm) | 50 |
Frequently asked questions
What engine does the Komatsu AFE48-2(A/C DRIVE BOOK) truck use?
Standard fit on the 930E-2 is the Komatsu SSDA16V160, a V-16 diesel rated 2014 kW (2,700 hp) gross at 1900 rpm; it drives the main traction alternator only and has no mechanical connection to the wheels. Some 930E-2 serial ranges left the factory with a Cummins QSK60 or a Detroit Diesel-derived V-16 instead. The higher-output 930E-2SE used a different 18-cylinder engine and falls outside this generation. Confirm the engine actually fitted against the chassis serial before ordering engine-side parts.
What is the operating weight of this truck?
Empty weight is about 202 t (445,846 lb) and maximum gross vehicle weight is about 499 t (1,100,000 lb), with a rated payload near 290 t (320 US ton). Figures vary slightly by source and by body/tire configuration, so treat them as class-typical rather than exact for every serial.
What replaced the Komatsu 930E-2?
Komatsu introduced the 930E-3 in 2003, keeping the same base engine pairing but revising the AC-drive electronics and wheel motor. Later 930E-4/-4SE and 930E-5/-5SE generations followed with further output and control-system updates. The higher-output 930E-2SE, launched in 2000, ran alongside the -2 as a parallel altitude/output option rather than a direct replacement.
What AFE48-2(A/C DRIVE BOOK) owners discuss
What engine sits ahead of the AC drive system on a 930E-2, and does it matter for service?
Engine supplier varies by serial range within the -2 production run. Early trucks ran a Detroit Diesel-derived two-stroke diesel under electronic control; later units switched to Komatsu's own version of that same architecture. Both land around 2013 kW (2700 hp) and turn roughly the same rated speed. On this truck the engine has one job: spin the main traction alternator. It never drives the wheels mechanically, so engine choice does not change AC-drive behavior, only which service and parts path applies. Confirm the actual engine fitted against the chassis serial before ordering anything engine-side.
What's the known wear point on the AC wheel motor/hub group?
The seal that separates the wheel motor's gear oil cavity from the wheel-end hydraulic circuit is the classic failure point. When that seal weeps, hydraulic oil and gear oil cross-contaminate and metal fines from early bearing wear get carried into the hydraulic system instead of staying trapped locally. Shops that see a lot of these trucks pull gear oil samples on schedule and watch for metal content as an early warning. Factory and aftermarket wheel-group seal upgrades add a magnet in the cavity to catch ferrous debris before it does more damage. Left unchecked this progresses to bearing damage on the wheel motor.
How does the dynamic retarding grid affect brake life and maintenance habits?
The forced-air-cooled resistor grid absorbs retarding energy at speed, at idle, and in reverse, which keeps most of the wear off the oil-cooled multi-disc service brakes. Mechanics treat the grid cover latches as a daily check item since a loose or missing latch lets debris and moisture into the grid housing, a common root cause of grid failure. Because the service brake only fully applies after the retarder has already taken a bite, a weak or faulted retarder quietly shifts more duty onto the brakes and accelerates disc wear without an obvious symptom until brake heat or pedal feel changes. Have your dealer verify retarder and brake function on a truck with unexplained brake wear before returning it to duty.
Are hoist cylinder leaks a common complaint on these trucks?
Yes. The outboard hoist cylinders use an internal cushion valve and over-center dampening, and the rod seals around that cushion valve are the typical leak point after years of dump cycles. It shows up as slow bed drift or oil weeping at the cylinder rather than sudden failure, and it is addressed with a reseal rather than a wholesale cylinder swap. Pin grease and pin security get checked at the same time since a dry or worn hoist pin is a separate, unrelated wear item on the same system. Have your dealer verify hoist cylinder and pin condition before working under a raised bed.
What electrical faults come up most with the AC drive control cabinet?
Ground-fault and insulation-monitoring trips are the recurring electrical nuisance on this drive system. Techs report that most trips trace back to moisture intrusion or contamination at wheel motor cabling and connectors rather than a failed alternator, motor, or inverter component. The standard troubleshooting path is to pull codes off the diagnostic information display panel first to narrow down which leg of the propulsion system tripped before chasing hardware. Because this is high-voltage AC drive gear, have your dealer verify any ground-fault fault before the truck goes back into service.
Does the AC drive actually reduce tire wear compared to older trucks?
Independent traction control at each rear wheel, a feature of this AC-drive generation, is broadly credited with cutting wheel slip and the tire scrubbing that comes with it compared to older DC-drive trucks. That said, operators and mechanics are consistent on one point: running over rated payload erases that advantage fast. Overload strains the wheel motors, tires, and structure regardless of drive type, so payload discipline matters more day to day than which drive system is fitted.
What should I check before buying a used 930E-2 with this AC drive configuration?
Pull the chassis serial and confirm the engine, main alternator, and wheel motors actually fitted match the original factory pairing for that serial range, since configuration varies across the -2 run and mismatched components cause control-system headaches. Ask for insulation-resistance test history and ground-fault trip logs on the drive cabinet, not just engine hours. Get a gear oil sample analysis from the wheel motor hubs looking for metal content, and inspect the hoist cylinders and retarder grid housing for leaks or loose covers. Check tire wear pattern for unevenness, which can point to a traction-control or alignment problem rather than normal wear. Confirm the steering accumulator holds its charge and the payload-meter suspension struts hold pressure, both routine pre-purchase red flags on a truck this size. Have your dealer verify drive-system diagnostics and brake/retarder function as part of any pre-purchase inspection.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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