Komatsu 930E-4 with 18V170 Engine Dump Truck Service Manual
1,155 pages · Publication CEBM031601
Fast free USA shippingShips in 1 business daySave 10% on 2 manuals, 15% on 3 or morePay by credit or debit card or with PayPal. No PayPal account needed.
Added to your cart. View cart
- Models
- 930E-4 with 18V170 Engine
- Serial coverage
- A40052 and up
- Manual type
- Service Manual
- Pages
- 1,155
- Publication
- CEBM031601
- Condition
- Brand new
What's inside
From the manual's own table of contents: 193 sections, 376 entries. See sample pages (PDF, 949 KB)
Composition of shop manual
Foreword
How to read the shop manual
General safety
Precautions before operating the truck
Precautions while operating the truck
Working near batteries
Precautions before performing service
Precautions while performing service
Tires
Precautions for performing repairs
Precautions for welding on the truck
Capacitor discharge system
Handling electrical equipment and hydraulic components
Standard tightening torques
Conversion tables
Specification drawing
Specifications
Weight table
Fuel, coolant and lubricants
Steering circuit operation
Steering circuit components
Steering/brake pump operation
Flow amplifier operation
Show all 193 sections
Hoist circuit operation
Hoist circuit components
Hoist pilot valve operation
General information
Service brake circuit operation
Secondary braking
Automatic brake application (Auto apply)33 topics
- Parking brake circuit operation
- Wheel brake lock circuit operation
- Brake warning circuit operation
- Brake assembly wear data
- Battery supply system
- Engine starting system with prelube
- Auxiliary control cabinet components
- Body-up switch
- Hoist limit switch
- General system operation
- System components
- DSC software functions
- Alternator field control
- Event detection and processing
- Event logging and storage
- Abnormal conditions/overriding functions
- AC drive system component table
- Electronic accelerator and retarder pedals
- General information
- Principles of refrigeration
- Air conditioning system components
- Air conditioning system electrical circuit
- Operation
- Service
- Troubleshooting
- Auto fill system electrical schematic
- Standard value table for truck
- General information on system checkout
- Hydraulic system checkout procedures
- Hydraulic system checkout data sheet
- Toe-in adjustment
- Hoist cylinder leakage test
- Steering cylinder leakage test
Brake system checkout procedures
Brake system checkout data sheet
Brake piston leakage test
Brake seal pressure test
Oil separator seal pressure test
Wet disc brake bleeding procedure
Parking brake bleeding procedure
Service brake disc wear inspection
Parking brake disc wear inspection
Brake valve bench test and adjustment
Dual relay valve bench test and adjustment
Accumulator charging precautions
Bladder accumulator charging procedure
Bladder accumulator storage
Bladder accumulator leak testing
Piston accumulator charging procedure
Piston accumulator storage
Piston accumulator leak testing
Checking for improper suspension charge
Suspension oiling and charging procedures
Suspension pressure test
Interface module software
Interface module checkout procedures
KOMTRAX Plus software and tools
KOMTRAX Plus controller setup procedure
KOMTRAX Plus initialization form
Precautions when replacing the KOMTRAX Plus controller
KOMTRAX Plus controller checkout procedure
Payload meter IV software and tools
Payload meter IV system configuration
Payload meter IV software installation
Payload meter IV checkout procedure
PLM IV system checkout data sheet
Software download and setup
Configuring a KWB_Connect device
Configuring a TRUCK_NET device
Changing a service computer’s IP address
Connecting to a wireless network
KWB_Connect troubleshooting
TRUCK_NET troubleshooting37 topics
- KWB_Connect checkout data sheet
- TRUCK_NET checkout data sheet
- Checks prior to self load engine test (loadbox)
- Engine running tests
- Diagnostic information display (DID) panel
- Viewing event and statistical data
- Logic screens
- Datalogger function
- Uploading data
- Service tools and equipment
- Detecting leaks
- System performance test
- Checking system oil
- System flushing
- Installing the manifold gauge set
- Recovering and recycling refrigerant
- Evacuating the air conditioning system
- Charging the air conditioning system
- Vehicle Electrical Center (VEC-89)
- Vehicle Electrical Center (VEC-90)
- Vehicle Electrical Center (VEC-91)
- Vehicle Electrical Center (RTMR1)
- DID panel fault code tables
- Fault Code A001: Left front suspension pressure sensor signal high
- Fault Code A002: Left front suspension pressure sensor signal low
- Fault Code A003: Right front suspension pressure sensor signal high
- Fault Code A004: Right front suspension pressure sensor signal low
- Fault Code A005: Left rear suspension pressure sensor signal high
- Fault Code A006: Left rear suspension pressure sensor signal low
- Fault Code A007: Right rear suspension pressure sensor signal high
- Fault Code A008: Right rear suspension pressure sensor signal low
- Fault Code A009: Incline sensor signal high
- Fault Code A010: Incline sensor signal low
- Fault Code A011: Payload meter speed sensor signal has failed
- Fault Code A013: Body up switch has failed
- Fault Code A014: Payload meter checksum computation has failed
- Fault Code A018: Right rear flat suspension cylinder warning
Fault Code A019: Left rear flat suspension cylinder warning
Fault Code A022: Carryback load excessive
Fault Code A101: High pressure detected across an hydraulic pump filter
Fault Code A105: Fuel level sensor shorted to ground, indicating a false high fuel level
Fault Code A107: GE has generated a propel system caution
Fault Code A108: GE has generated a propel system temperature caution
Fault Code A109: GE has generated a propel system reduced level signal
Fault Code A111: Low steering pressure warning
Fault Code A115: Low steering precharge pressure detected
Fault Code A117: Low brake accumulator pressure warning
Fault Code A118: Brake pressure is low while in brake lock
Fault Code A123: GE has generated a reduced retarding caution
Fault Code A124: GE has generated a no propel / no retard warning
Fault Code A125: GE has generated a no propel warning
Fault Code A126: Oil level in the hydraulic tank is low
Fault Code A127: IM-furnished +5 volt output for sensors is low
Fault Code A128: IM-furnished +5 volt output for sensors is high
Fault Code A139: Low fuel warning
to advance level 1 for cooling of hydraulic oil
to advance level 2 for cooling of hydraulic oil
Fault Code A152: Starter failure
Fault Code A153: Battery voltage is low with the truck in operation
Fault Code A154: Battery charging voltage is excessive
Fault Code A155: Battery charging voltage is low
low fuel level
Fault Code A166: Left rear hydraulic oil temperature sensor is low
Fault Code A167: Right rear hydraulic oil temperature sensor is low
Fault Code A168: Left front hydraulic oil temperature sensor is low
Fault Code A169: Right front hydraulic oil temperature sensor is low
Fault Code A170: Left rear hydraulic oil temperature sensor is high
Fault Code A171: Right rear hydraulic oil temperature sensor is high
Fault Code A172: Left front hydraulic oil temperature sensor is high
Fault Code A173: Right front hydraulic oil temperature sensor is high
Fault Code A184: J1939 data link is not connected
Fault Code A190: Auto lube control has detected an incomplete lube cycle
Fault Code A194: Left front hydraulic oil temperature is high
Fault Code A195: Right front hydraulic oil temperature is high
Fault Code A196: Left rear hydraulic oil temperature is high
Fault Code A197: Right rear hydraulic oil temperature is high
Fault Code A198: Hoist pressure 1 sensor is high
Fault Code A199: Hoist pressure 2 sensor is high
Fault Code A200: Steering pressure sensor is high
Fault Code A201: Brake pressure sensor is high35 topics
- Fault Code A202: Hoist pressure 1 sensor is low
- Fault Code A203: Hoist pressure 2 sensor is low
- Fault Code A204: Steering pressure sensor is low
- Fault Code A205: Brake pressure sensor is low
- Fault Code A206: Ambient temperature sensor is high
- Fault Code A207: Ambient temperature sensor is low
- Fault Code A212: Bad truck speed signal
- having applied
- having released
- Fault Code A215: Brake auto apply valve circuit is defective
- command valve circuit
- been attempted
- Fault Code A230: Parking brake has been requested while truck still moving
- Fault Code A231: The body is up with engine running and brakes not on
- Fault Code A233: Drive system CAN/RPC Control Link not connected
- Fault Code A235: Steering accumulator is in the process of being bled down
- seconds
- Fault Code A237: The CAN/RPC connection to the display is open
- Fault Code A240: The key switch input to the interface module is open
- Fault Code A242: Fuel gauge within the dash display panel is defective
- is defective
- Fault Code A246: Payload meter reports truck overload
- Fault Code A247: Low steering pressure warning
- Fault Code A248: Status module within the dash display panel is defective
- Fault Code A249: Red warning lamp within the dash display (driven by IM) is shorted
- Fault Code A250: Battery voltage is low with the truck parked
- shorted to ground
- Fault Code A252: Start enable output circuit is either open or shorted to ground
- Fault Code A253: Steering bleed circuit is not open while running
- Fault Code A256: Red warning lamp in the dash display (driven by IM) is open
- Fault Code A257: Payload CAN/RPC is not connected
- Fault Code A258: Steering accumulator bleed pressure switch circuit is defective
- Fault Code A260: Parking brake failure
- Fault Code A261: Low brake accumulator pressure warning
- Fault Code A262: Steering bleed valve circuit open during shutdown
Fault Code A264: Parking brake relay circuit is defective
Fault Code A265: Service brake failure
Fault Code A266: Shift lever was not in park while attempting to crank engine
Fault Code A267: Parking brake was not set while attempting to crank engine
Fault Code A268: Secondary engine shutdown while cranking
Fault Code A270: Brake lock switch power supply is not on when required
Fault Code A271: Shift lever not in gear
Fault Code A272: Brake lock switch power supply is not off when required
pressure switch circuit
Fault Code A274: A brake setting fault has been detected
Fault Code A275: A starter has been detected as engaged without a cranking attempt
Fault Code A276: The drive system data link is not connected
Fault Code A277: Parking brake applied while loading
Fault Code A278: Service brake applied while loading
Fault Code A279: Low steering pressure switch is defective
Fault Code A280: Steering accumulator bleed down switch is defective
Fault Code A281: Brake lock degrade switch is defective
without the engine running has reached 7
was not set
shutdown switch was operated
Fault Code A285: The parking brake was not set when the keyswitch was turned off
Fault Code A286: A fault was detected in the shutdown delay relay circuit
key switch circuit is off
Fault Code A303: Shift lever is defective
Fault Code A304: Auto lube grease level fault
Fault Code A305: Auto lube circuit is defective
Fault Code A307: Both GE inverters are disabled
Fault Code A309: No brakes applied when expected
Fault Code A310: Low fuel warning
Fault Code A311: Brake lock switch is on when it should not be
Fault Code A312: DC-DC converter 12 volt circuit sensing is producing low readings
Fault Code A313: DCDC converter 12 volt circuit sensing is producing high readings
Fault Code A315: DCDC converter 12 volt circuit is low
Fault Code A316: Starter engagement has been attempted with engine running
Fault Code A317: Operation of brake auto apply valve without a detected response
Fault Code A318: Unexpected power loss to interface module
does not
wired input does not38 topics
- does not
- Fault Code A324: Data link reports DC link voltage but wired input does not
- Fault Code A325: Data link reports GE no propel/retard fault but wired input does not
- Fault Code A326: Data link reports GE no propel fault but wired input does not
- Fault Code A327: Data link reports GE at rest but wired input does not
- Fault Code A328: Drive system not powered up
- Fault Code A329: Data link reports the body is not down but wired input says it is
- Fault Code A332: Seat belt not buckled
- Fault Code A333: The hydraulic ladder controller has declared a ladder fault
- Fault Code A334: Shift lever not in park when propel was either not ready or at rest
- Fault Code A337: Engine Air Filter Circuit Fault
- Fault Code A338: Engine Air Filter Fault
- Fault Code A350: Overload on output 1B
- Fault Code A351: Overload on output 1E
- Fault Code A352: Overload on output 1H
- Fault Code A353: Overload on output 1J
- Fault Code A354: Overload on output 1K
- Fault Code A355: Overload on output 1L
- Fault Code A356: Overload on output 1M
- Fault Code A357: Overload on output 1N
- Fault Code A358: Overload on output 1P
- Fault Code A359: Overload on output 1R
- Fault Code A360: Overload on output 1S
- Fault Code A361: Overload on output 1T
- Fault Code A362: Overload on output 1U
- Fault Code A363: Overload on output 1X
- Fault Code A364: Overload on output 1Y
- Fault Code A365: Overload on output 1Z
- Orbcomm satellite connection
- Preliminary checks
- Diagnosis of gauge readings and system performance
- Troubleshooting by manifold gauge set readings
- Steering circuit troubleshooting chart
- Steering circuit troubleshooting guidelines
- Basic hydraulic system checks
- System leakage check
- Steering pump troubleshooting guide
- Pump pressure control checks
Special tool group
Additional service tools
Locally made tools
General precautions for tires and rims
Rim components
Wheel stud maintenance
Removal and installation of front wheel
Removal and installation of rear wheel
Rim and tire service
Removal and installation of front wheel hub and spindle
Disassembly and assembly of front wheel hub and spindle
Hub floating ring seal assembly and installation
Removal and installation of rear axle
Removal and installation of anti-sway bar
Removal and installation of pivot pin
Pivot eye and bearing service
Removal and installation of wheel motor
Removal and installation of rear brake assembly
Removal and installation of brake valve
Disassembly and assembly of brake valve
Removal and installation of dual relay valve
Removal and installation of brake manifold
Disassembly and assembly of brake manifold
Removal and installation of piston brake accumulator
Disassembly and assembly of piston brake accumulator
Disassembly and assembly of front wheel brake
Disassembly and assembly of rear wheel brake
Brake floating ring seal assembly and installation
Removal and installation of parking brake
Disassembly and assembly of parking brake
Removal and installation of steering control unit
Disassembly and assembly of steering control unit
Removal and installation of steering column
Removal and installation of steering wheel
Removal and installation of bleeddown manifold
Removal and installation of flow amplifier
Removal and installation of steering cylinders and tie rod
Disassembly and assembly of steering cylinders
Removal and installation of steering/brake pump
Removal and installation of piston steering accumulator
Disassembly and assembly of piston steering accumulator40 topics
- Removal and installation of front suspension
- Disassembly and assembly of front suspension
- Removal and installation of rear suspension
- Disassembly and assembly of rear suspension
- Removal and installation of hoist pump
- Disassembly and assembly of hoist pump
- Removal and installation of hoist valve
- Disassembly and assembly of hoist valve
- Overcenter manifold service
- Removal and installation of hoist pilot valve
- Disassembly and assembly of hoist pilot valve
- Removal and installation of hoist cylinders
- Disassembly and assembly of hoist cylinders
- Removal and installation of dump body
- Removal and installation of body pads
- Removal and installation of diagonal ladder/hood and grille assembly
- Removal and installation of RH deck
- Removal and installation of LH deck
- Removal and installation of fuel tank
- Removal and installation of fuel gauge sender
- Removal and installation of hydraulic tank
- Removal and installation of hydraulic tank strainers
- Removal and installation of operator cab
- Removal and installation of cab door
- Disassembly and assembly of cab door
- Adjustment of cab door
- Removal and installation of side window glass
- Removal and installation of windshield and rear window glass
- Removal and installation of windshield wiper motor
- Removal and installation of windshield wiper arm
- Removal and installation of windshield wiper linkage
- Removal and installation of optional seats
- Removal and installation of seat belts (optional seats)
- Removal and installation of electronic accelerator and retard pedals
- Replacement of air conditioning system components
- Removal and installation of power module
- Removal and installation of alternator
- Removal and installation of radiator
- Repairing the radiator
- Removal and installation of engine
Inside this manual
Real pages from this service manual (1,155 pages). Open the sample pages (PDF, 948 KB)
- Specifications, page 270: 30 Testing and adjusting
- Diagram, page 644: Related Circuit Diagram
- Troubleshooting, page 695: Fault Code A352: Overload on output 1H
- Color page, page 720: 40 Troubleshooting
- Color page, page 307: 30 Testing and adjusting
- Foldout diagram (color), page 1,124: ELECTRICAL SUB-SYSTEM SCHEMATIC
This is a service manual
Here's how it compares to the other manual types.
This manual
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 1,155 pages
Quantity one is the manual described above.
Fast free USA shipping
Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).