Specifications
| Fuel | diesel |
|---|---|
| Frequency | 50.0 Hz |
| Prime power | 150 kW |
| Emissions | EPA Tier II |
| Controller | Decision-Maker 550 |
| Alternator | Fast-Response (4-pole, Class H insulation) |
| Voltage options | 110/190 V, 110/220 V, 220/380 V, 230/400 V, 240/416 V |
| Phase | 3 |
| Rated current | 570.0 A |
| Dimensions (L×W×H) | 2506×960×1192 mm |
| Dry weight | 2011 kg |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Fuel filter | — | ||||
| Oil filter | — | ||||
| Battery | — | ||||
| Belt | — | ||||
| Coolant filter | — | ||||
| Oil | — | ||||
| Spark plug | — |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Service intervals
3| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Generator end bracket bearing | Replace | 10 hr | Service more frequently if bearing inspection indicates excessive rotor end play or bearing damage from corrosion or heat buildup | |
| Generator set storage (three months or longer) | Other | 3 mo | Perform the storage procedure before taking a generator set out of service for three months or longer | |
| Seawater pump | Other | First service — Prime the seawater pump before initial startup; confirm water discharge from the exhaust outlet |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
50| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Clearance | End bracket to bearing outer race clearance | 6.35 mm (0.25 in.) | mm (in.) | |
| Gap | Magnetic pickup air gap | 0.35--0.71 mm (0.014--0.028 in.) | mm (in.) | 1/4 to 1/2 turn back from ring gear tooth contact |
| Gap | Speed sensor air gap | 0.36--0.71 mm (0.014--0.028 in.) | mm (in.) | |
| Pressure | Low oil pressure switch 253323 | 15 ±3 | psi | |
| Pressure | Low oil pressure switch 328309 | 15 ±2 | psi | |
| Pressure | Low seawater pressure switch GM30263 | 0.5 ±0.3 | psi | |
| Pressure | Oil pressure sender 264390 | 240 +17 --15 ohms at 0 psi; 153 +12 --15 ohms at 25 psi; 33.5 ohms at 100 psi | ohms | |
| Pressure | Oil pressure sender GM16788 input pressure range | 0--1034 kPa (0--150 psi) | kPa (psi) | proof pressure 3103 kPa (450 psi); burst pressure 5171 kPa (750 psi) |
| Resistance | Alternator field insulation (megohmmeter, 500 VDC applied to F+ or F-- lead and rotor shaft) | 500 kOhms (1/2 megohm) and higher | kOhms | 500 volts DC applied |
| Resistance | Alternator field resistance (F+/F--) | 1.44 | ohms | |
| Resistance | Alternator field resistance (F+/F--) | 1.6 | ohms | |
| Resistance | Alternator field resistance (F+/F--) | 1.79 | ohms | |
| Resistance | Alternator field resistance (F+/F--) | 1.9 | ohms | |
| Resistance | Alternator field resistance (F+/F--) | 2.21 | ohms | |
| Resistance | Alternator field resistance (F+/F--) | 2.7 | ohms | |
| Resistance | Exciter armature resistance | 0.11 | ohms | |
| Resistance | Exciter armature resistance | 0.34 | ohms | |
| Resistance | Exciter armature resistance | 0.47 | ohms | |
| Resistance | Governor actuator coil resistance, 12 VDC | 2.05 ±0.25 | ohms | ambient temperature |
| Resistance | Governor actuator coil resistance, 24 VDC | 7.20 ±0.50 | ohms | ambient temperature |
| Resistance | Governor actuator coil to case isolation | >3 | megohms | |
| Speed | Full load engine speed | 1800 rpm (60 Hz) or 1500 rpm (50 Hz) | rpm | hot engine under load |
| Temperature | Coolant temperature sender GM39458, Value A | 123.8 +7.2 --7.8 | ohms at 195°F | |
| Temperature | Coolant temperature sender GM39458, Value B | 35.6 +3.4 --3.6 | ohms at 280°F | |
| Temperature | Exhaust temperature switch 249872 / GM19189, close | 102°C±15°C (215°F±5°F) | °C (°F) | |
| Temperature | Exhaust temperature switch 249872 / GM19189, open | 88°C±15°C (190°F±10°F) | °C (°F) | |
| Temperature | High coolant temperature switch 241481 / GM29288 | 103°C ±4°C (218°F ±7°F) | °C (°F) | normally open, closes on temperature rise |
| Torque | Alternator adapter to flywheel housing bolts, 180 kW, 7/16--14 grade 8 bolt | 85 (63) | Nm (ft. lb.) | |
| Torque | Alternator adapter to flywheel housing bolts, 40 kW, 3/8--16 grade 8 bolt | 53 (39) | Nm (ft. lb.) | |
| Torque | Alternator adapter to flywheel housing bolts, 55--150 kW John Deere, 7/16--14 grade 8 bolt | 60 (44) | Nm (ft. lb.) | |
| Torque | Alternator adapter to flywheel housing bolts, John Deere, M10 grade 10.9 bolt | 65 (48) | Nm (ft. lb.) | |
| Torque | Drive discs to flywheel bolts, 180 kW, 1/2--13 grade 8 bolt | 130 (96) | Nm (ft. lb.) | |
| Torque | Drive discs to flywheel bolts, 40 kW, 3/8--16 grade 8 stud | 53 (39) | Nm (ft. lb.) | |
| Torque | Drive discs to flywheel bolts, 55--150 kW John Deere, 3/8--16 grade 8 stud | 53 (39) | Nm (ft. lb.) | |
| Torque | Drive disks to rotor shaft bolts | 68 | Nm (50 ft. lb.) | |
| Torque | End bracket grease fitting | 9.5 | Nm (7 ft. lb.) | |
| Torque | End bracket grease vent screw | 9.5 | Nm (7 ft. lb.) | |
| Torque | End bracket to stator bolts | 47 | Nm (35 ft. lb.) | |
| Torque | Fan to rotor flange bolts | 29 | Nm (260 in. lb.) | |
| Torque | Ground lug assembly nuts | 45 | Nm (34 ft. lb.) | |
| Torque | High idle locknut / low idle locknut | 4--5 | Nm (35--45 in. lb.) | |
| Torque | Integrated actuator cover screws to pump body | 4--5 | Nm (35--45 in. lb.) | |
| Torque | Photo transistor circuit board, insulator, & magnetic actuator to rotor shaft screws | 4.7 | Nm (42 in. lb.) | |
| Torque | Return line connector assembly | 5--6 | Nm (43--55 in. lb.) | |
| Torque | SCR assembly mounting bolts | 0.9 | Nm (8 in. lb.) | |
| Torque | SCR assembly terminal nuts | 0.9 | Nm (8 in. lb.) | |
| Voltage | 550 Controller input requirements | 8--36 | VDC | |
| Voltage | 550 Controller voltage regulator sensing | 100--240 Volts (L-N), 50--60 Hz | volts | RMS, single- or 3-phase |
| Voltage | Speed sensor voltage, terminals 2 (black) & 16 (white) | 3--6 | volts DC | |
| Voltage | Speed sensor voltage, terminals 2 (black) & 24 (red) | 8--10 | volts DC |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | #2 diesel fuel | Diesel-fueled engines: fill the fuel tank with #2 diesel fuel and condition the fuel system with compatible additives to control microbial growth. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Fault codes
13| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| E0 | Controller memory failure | Governor controller memory failure (load share model display code). | Shutdown | Replace governor controller. |
| E1 | Loss of remote speed potentiometer signal | Governor controller has lost the remote speed potentiometer signal. | Warning | Check the remote speed potentiometer and its wiring. |
| E2 | Overspeed detected | Overspeed detected by the governor controller (load share model display code). | Shutdown | Governor controller must be turned off and reset to allow an engine restart. |
| E3 | Actuator drive overcurrent detected | Actuator drive overcurrent detected by the governor controller (load share model display code). | Shutdown | Check wiring. Check actuator loading and linkage. |
| Emergency Stop | Emergency Stop Shutdown (550 controller) | The local or optional remote emergency stop switch activated. | Shutdown | Correct the cause and reset the emergency stop switch, then reset the controller. |
| Hi Cool Temp Shutdown | High Coolant Temperature Shutdown (550 controller) | Engine coolant temperature reached the shutdown range; shutdown occurs 5 seconds after the engine reaches the temperature shutdown range (30 second inhibit after startup). | Shutdown | Allow the engine to cool and troubleshoot the cooling system. |
| Low Coolant Level | Low Coolant Level Shutdown (550 controller) | Low coolant level detected; shutdown occurs 5 seconds after low coolant level is detected (30 second inhibit after startup). | Shutdown | Restore the coolant to the normal operating level and check for leaks. |
| Oil Pressure Shutdown | Low Oil Pressure Shutdown (550 controller) | Low oil pressure condition detected; shutdown occurs 5 seconds after the low pressure condition is detected (30 second inhibit after startup). | Shutdown | Check the engine oil level and lubrication system. |
| Over Crank | Overcrank Shutdown (550 controller) | The unit does not start within the defined cranking period. Range 0--6 cycles; default 3 cycles with 15 sec crank and 15 sec rest. | Shutdown | Check fuel supply, starting system, and speed sensor circuitry. |
| Over Current | Overcurrent Warning (550 controller) | The generator set supplies more than 110% of the rated standby output current for more than 10 seconds. | Warning | Reduce the electrical load and check for faults in the load circuit. |
| Over Speed | Overspeed Shutdown (550 controller) | Governed frequency on 50 and 60 Hz models exceeds the overspeed setting for 0.25 seconds. Setting range 65--70 Hz (60 Hz) / 55--70 Hz (50 Hz); default 70 Hz. | Shutdown | Check governor and engine speed; reset the controller after correcting the cause. |
| Over Voltage | Overvoltage Shutdown (550 controller) | Voltage exceeds the overvoltage setting for the time delay period. Range 105%--135% of nominal; default 115% at 2 seconds. | Shutdown | Troubleshoot the voltage regulator and sensing circuits. |
| Under Voltage | Undervoltage Shutdown (550 controller) | Voltage falls below the undervoltage setting for the time delay period. Range 70%--95% of nominal; default 85% at 10 seconds. | Shutdown | Check alternator output, load, and voltage regulator. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Magnetic Pickup Adjustment adjustment
- Place the generator set master switch in the OFF/RESET position.
- Verify the flywheel is not rotating. Loosen the jam nut.
- Turn in the magnetic pickup until the pole face bottoms on the ring gear tooth.
- Back out the magnetic pickup 1/4 to 1/2 turn providing a 0.35--0.71 mm (0.014--0.028 in.) air gap.
- Tighten the jam nut without moving the magnetic pickup.
Volt/Hz Potentiometer Adjustment adjustment
Tools: 100-watt light bulb, voltmeter, frequency meter
- Turn the generator set master switch to OFF/RESET.
- Make the single- or three-phase sensing selection at switch #2.
- Turn the stability potentiometer fully counterclockwise.
- Connect a 100-watt light bulb across terminals V0 and V7 on the controller terminal strip.
- Start the generator set and adjust the stability potentiometer until minimum light bulb flicker is obtained.
- Make the frequency selection (50 or 60 Hz) at switch #1.
- Select the bias switch for No Bias Input.
- Adjust engine speed to the desired cut-in frequency (57.5--58.0 Hz for 60 Hz models or 47.5--48.0 Hz for 50 Hz models).
- Rotate the volts/Hz adjustment potentiometer clockwise until voltage begins to drop.
- Adjust engine speed to obtain full load engine speed of 1800 rpm (60 Hz) or 1500 rpm (50 Hz).
Controller Resetting (550 Controller, Following System Shutdown or Warning) diagnostic
⚠ Read the Safety Precautions and Instructions section before proceeding.
- Move the generator set master switch to the AUTO position if not already done.
- Silence the alarm horn by pressing the alarm off key.
- Disconnect the generator set load using the line circuit breaker or automatic transfer switch.
- Correct the cause of the fault shutdown or warning.
- Start the generator set by moving the master switch to OFF/RESET and then to RUN.
- Test operate the generator set to verify correction of the shutdown cause.
- Move the master switch to OFF/RESET to stop the generator set.
- Move the master switch to the AUTO position.
- Silence the alarm horn by pressing the alarm off key.
- Reconnect the generator set load via the line circuit breaker or automatic transfer switch.
LED Circuit Board (Flashlight) Test diagnostic
⚠ Do not expose the photo transistor circuit board to any external light source; exposure to light causes high voltage. Place black electrical tape over the LED before starting the set.
Tools: flashlight, voltmeter
- Remove the junction box panels from the generator end and remove the photo transistor board/LED board cover.
- With the generator set running at no load, shine a flashlight on the exposed photo transistor board.
- Observe the AC output voltmeter; high AC output voltage indicates the SCR assembly and photo transistor board are functioning.
- With the set running, approximately 1--2 volts DC should be observed at 3B (+) and 5B (--) at the LED board; the reading should drop when the flashlight is applied.
Speed Sensor Test with Generator Set Running diagnostic
⚠ Controller leads must remain connected to the speed sensor terminals during the test; slide leads only enough to expose connection for test leads.
Tools: DC voltmeter
- With the master switch in OFF/RESET, connect a DC voltmeter between the positive (+) lead (wire 24) and ground (wire 2); reading should be approximately 8--12 VDC.
- Place the master switch in the RUN position to start the generator set.
- With the set running, place the voltmeter negative probe on the 0 terminal (wire 16, white) and positive probe on the positive (+) terminal (wire 24, red); reading should be approximately 7--12 VDC.
- Place the master switch in OFF/RESET to stop the generator set.
- If a signal is present, check continuity of wires 2, 16, and 24 between the controller P1 connector and the speed sensor leads.
Speed Sensor Test with Separate 12 VDC Source diagnostic
Tools: DC voltmeter, 12-volt battery or DC power supply, flat piece of iron or steel
- Place the generator set master switch in the OFF/RESET position.
- Disconnect the speed sensor leads.
- Connect the speed sensor, DC voltmeter, and DC voltage source as shown in the manual.
- Touch the sensing surface with a flat piece of iron or steel at least 4.1 cm (1/4 cu. in.) in size.
- The DC voltmeter reading should equal the source voltage, approximately 12 VDC.
- Remove the iron or steel piece; the voltmeter should read 0 VDC.
- Connect the speed sensor leads and adjust the air gap.
Electronic Governor Actuator Installation (John Deere) installation
- Install the new cover seal into the groove of the integrated actuator cover assembly.
- Position the integrated actuator cover assembly into the top of the pump while holding the metering valve drive coupling parallel to the pump body.
- Carefully slide the cover toward the rear of the pump body until the mounting holes align.
- Use two long cover screws and one short cover screw to assemble the cover to the pump body.
- Tighten the screws to 4--5 Nm (35--45 in. lb.).
- Install a new O-ring on the return line connector, coat lightly with all-purpose grease, and install; tighten to 5--6 Nm (43--55 in. lb.).
- Install the fuel return line to the return line connector.
Storage Procedure—Battery maintenance
⚠ Remove the negative (--) lead first when disconnecting the battery and reconnect it last.
- Place the generator set master switch in the OFF/RESET position.
- Disconnect the battery(ies), negative (--) lead first.
- Clean the battery per the battery manufacturer's instructions.
- Place the battery in a cool, dry location.
- Connect the battery to a float/equalize battery charger or charge it monthly with a trickle battery charger.
- Maintain a full charge to extend battery life.
Storage Procedure—Cooling System maintenance
Tools: coolant tester
- Check the coolant freeze protection using a coolant tester.
- Add or replace coolant as necessary to ensure adequate freezing protection.
- Run the generator set for 30 minutes to redistribute added coolant.
Storage Procedure—Exterior maintenance
- Clean the exterior surface of the generator set.
- Seal all engine openings except for the air intake with nonabsorbent adhesive tape.
- Secure a cloth over the air intake to keep impurities out and allow moisture to escape.
- Mask electrical connections.
- Spread a light film of oil over unpainted metallic surfaces to inhibit rust and corrosion.
Storage Procedure—Fuel System (Diesel-Fueled Engines) maintenance
- Fill the fuel tank with #2 diesel fuel.
- Condition the fuel system with compatible additives to control microbial growth.
- Change the fuel filter/separator and bleed the fuel system.
Storage Procedure—Lubricating System maintenance
- Run the generator set for a minimum of 30 minutes to bring it to normal operating temperature.
- Stop the generator set.
- With the engine still warm, drain the oil from the crankcase.
- Remove and replace the oil filter.
- Refill the crankcase with oil suited to the climate.
- Run the generator set for two minutes to distribute the clean oil.
- Stop the generator set.
- Check the oil level and adjust, if needed.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
Is the Kohler 150EFOZD diesel or gas?
The Kohler 150EFOZD runs on diesel.
What is the dry weight of the Kohler 150EFOZD?
The Kohler 150EFOZD has a dry weight of 2011 kg (4433 lb).
What voltages is the Kohler 150EFOZD available in?
The Kohler 150EFOZD is offered in 110/190 V, 110/220 V, 220/380 V, 230/400 V, 240/416 V, 3-phase.
What alternator does the Kohler 150EFOZD use?
The Kohler 150EFOZD uses a Fast-Response alternator. It has 4 poles. Insulation class H.
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| RDO-16 | Time Delay Engine Cooldown (TDEC) | 1 | Service part / kit | Amazon eBay |
| RDO-17 | System Ready | 1 | Service part / kit | Amazon eBay |
| RDO-18 | Defined Common Fault | 10 | Service part / kit | Amazon eBay |
| RDO-19 | Low Coolant Level Shutdown RDO-19 | 10 | Service part / kit | Amazon eBay |
| RDO-20 | Over Voltage Shutdown RDO-20 (lead 26) | 7 | Service part / kit | Amazon eBay |
| RDO-22 | EPS Supplying Load RDO-22 | 10 | Service part / kit | Amazon eBay |
| RDO-23 | Fuel Valve Relay | 10 | Service part / kit | Amazon eBay |
| RDO-24 | Reverse Power Shutdown | 1 | Service part / kit | Amazon eBay |
| RDO-25 | Weak Battery Off Warning RDO-25 | Service part / kit | Amazon eBay | |
| RDO-27 | Underfrequency Shutdown | 1 | Service part / kit | Amazon eBay |
| RDO-28 | Over Speed Shutdown RDO-28 | 7 | Service part / kit | Amazon eBay |
| RDO-29 | Time Delay Engine Cooldown RDO-29 | 8 | Service part / kit | Amazon eBay |
| RDO-30 | Load Shed KW Overload RDO-30 | 10 | Service part / kit | Amazon eBay |
| RDO-31 | Load Shed Underfrequency RDO-31 | 10 | Service part / kit | Amazon eBay |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 25% | 10.3 | 2.7 |
| Prime | 50% | 22.1 | 5.8 |
| Prime | 75% | 31.8 | 8.4 |
| Prime | 100% | 41.7 | 11.0 |
Available documents
Spec sheet (Kohler)Reference — G18095 (Kohler)Parts manual (Kohler)Parts manual — 2017-Sea-Spares-Brochure-g12202 (Kohler)Service manual — tp6442 eng bg9k (Kohler)
This page was generated from the 5 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.