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John Deere 6135HFG75 Engine

The John Deere 6135HFG75 is a 13.5 L 6-cylinder turbocharged, charge air-cooled engine rated at 1800 rpm, producing up to 563 kW. It powers generator sets from Kohler, including the 500REOZJ. It holds 42 L (11.1 gal) of oil and 67.2 L (17.8 gal) of coolant.

Also known as: John Deere 6135HFG75

Part of the John Deere 6135 engine family — 28 variants share parts & fitment.

13.5 L

Displacement

Cylinders

1800 rpm

Rated speed

563 kW

Gross power

On this pageService parts Specs Generator sets Maintenance Filter cross-reference FAQ Torque & specs Procedures Wiring

Service parts for the 6135HFG75

The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.

Air intake

1 required

AH115833Air filter$69.29eBay

Fuel system

1 required

GM80460Fuel filter (primary)$48.97PartsGeek

Oil system

1 required

GM80434Oil filter$104.59NAPA

Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.

Engine specifications

Oil capacity	42.0 L
Coolant capacity	67.2 L
Displacement	13.5 L
Cylinders	6
Aspiration	Turbocharged, Charge Air-Cooled
Rated speed	1800 rpm
Gross power	563 kW

Generator sets powered by this engine

Kohler 500REOZJ

How to read your John Deere engine serial & model number →

Common problems

Emergency Stop 32A
Fix: Reset the emergency stop switch.
Pre Low Oil Pressure 41
Fix: Check and adjust oil level or replace oil pump.
Pre High Coolant Temp. 40
Low Fuel 63
Fix: Refuel the generator set.
Low Battery Volts 62
High Coolant Temperature 32

Compiled from service & troubleshooting documentation across every generator set that uses the John Deere 6135HFG75.

Maintenance schedule

Item	Spec	Capacity	Part #
Air filter	Dry		—
Fuel filter	Primary		GM80460	Amazon eBay $93.00 PartsGeek $48.97
Oil filter	Cartridge		GM80434	Amazon eBay $118.44 NAPA $104.59
Coolant		67.2 L	—
Oil		42.0 L	—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Service specifications

Type	Item	Value	Unit	Condition
Gap	Speed sensor air gap	0.36- 0.71	mm
Other	10 in. weld flange bolt circle diameter B	361.95	mm (14.25 in.)
Other	10 in. weld flange outside diameter C	406.4	mm (16.0 in.)
Other	10 in. weld flange quantity of bolts / bolt hole diameter D	12, 25.40	mm (1.00 in.)
Other	12 in. weld flange bolt circle diameter B	431.80	mm (17.00 in.)
Other	12 in. weld flange outside diameter C	482.6	mm (19.0 in.)
Other	12 in. weld flange quantity of bolts / bolt hole diameter D	12, 25.40	mm (1.00 in.)
Other	14 in. weld flange bolt circle diameter B	476.25	mm (18.75 in.)
Other	14 in. weld flange outside diameter C	533.4	mm (21.0 in.)
Other	14 in. weld flange quantity of bolts / bolt hole diameter D	12, 28.58	mm (1.13 in.)
Other	16 in. weld flange bolt circle diameter B	539.75	mm (21.25 in.)
Other	16 in. weld flange outside diameter C	596.9	mm (23.5 in.)
Other	16 in. weld flange quantity of bolts / bolt hole diameter D	16, 28.58	mm (1.13 in.)
Other	18 in. weld flange bolt circle diameter B	577.85	mm (22.75 in.)
Other	18 in. weld flange outside diameter C	635.0	mm (25.0 in.)
Other	18 in. weld flange quantity of bolts / bolt hole diameter D	16, 31.75	mm (1.25 in.)
Other	20 in. weld flange bolt circle diameter B	635.00	mm (25.00 in.)
Other	20 in. weld flange outside diameter C	698.5	mm (27.5 in.)
Other	20 in. weld flange quantity of bolts / bolt hole diameter D	20, 31.75	mm (1.25 in.)
Other	5 in. weld flange bolt circle diameter B	215.90	mm (8.50 in.)
Other	5 in. weld flange outside diameter C	241.30	mm (9.50 in.)
Other	5 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	6 in. weld flange bolt circle diameter B	254.0	mm (10.0 in.)
Other	6 in. weld flange outside diameter C	279.4	mm (11.0 in.)
Other	6 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	8 in. weld flange bolt circle diameter B	298.45	mm (11.75 in.)
Other	8 in. weld flange outside diameter C	342.9	mm (13.5 in.)
Other	8 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	Weld flange angle A (10, 12, 14 in. nominal pipe size)	30	deg.
Other	Weld flange angle A (16, 18, 20 in. nominal pipe size)	22.5	deg.
Other	Weld flange angle A (5, 6, 8 in. nominal pipe size)	45	deg.
Pressure	Battery equalizer input voltage (24 volts nominal)	20- 35	volts
Pressure	Battery equalizer output voltage	(input voltage/2) ±2%	volts
Pressure	Pressure switch 364345	483 ±14	kPa
Resistance	Pressure sender 264390 value A	240 +17/- 15	ohms at 0 psi
Resistance	Pressure sender 264390 value B	153 +12/- 15	ohms at 25 psi
Resistance	Pressure sender 264390 value C	33.5	ohms at 100 psi
Resistance	Pressure sender 365624 value A	241 ±16	ohms at 0 psi
Resistance	Pressure sender 365624 value B	152 ±13	ohms at 50 psi
Resistance	Pressure sender 365624 value C	33.5	ohms at 200 psi
Resistance	Temperature sender 226717 value A	123.8 +7.2/- 7.8	ohms at 90.6 C (195 F)
Resistance	Temperature sender 226717 value B	35.6 +3.4/- 3.6	ohms at 137.8 C (280 F)
Resistance	Temperature sender 226919 value A	942 ±22	ohms at 37.7 C (100 F)
Resistance	Temperature sender 226919 value B	35	ohms at 115.6 C (240 F)
Speed	Overspeed shutdown	70	Hz	60 Hz models
Temperature	Battery equalizer operating temperature	- 40 to 71	C (- 40 F to 160 F)
Temperature	Temperature switch 241308	107 ±4	C (225 F ±7 F)	normally open to close on temp. rise
Temperature	Temperature switch 290090/GM51705	16 ±3	C (60 F ±5 F)	normally open to close on temp. fall
Voltage	Speed sensor voltage, wire 2 (black) & 16 (white)	3- 6	volts DC
Voltage	Speed sensor voltage, wire 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.

Procedures

Overfrequency Adjustment (Over/Underfrequency Relay, Decision-Maker 3+) adjustment

Turn the overfrequency adjustment potentiometer fully clockwise (CW).
Place master switch in RUN to start the generator set.
Adjust governor per engine operation manual, engine service manual, or governor section of this manual.
Slowly turn overfrequency potentiometer counterclockwise (CCW) until the LED starts flashing; after about 10 seconds the set shuts down on auxiliary fault.
Place master switch to OFF/RESET to reset the controller.
Place master switch to RUN to start the generator set.
Readjust the governor to the desired frequency as required.
Place master switch to OFF/RESET to stop the generator set.

Overvoltage Feature Testing and Adjustment (Decision-Maker 3+) adjustment

⚠ Hazardous voltage. Moving parts. Will cause severe injury or death. Operate the generator set only when all guards and electrical enclosures are in place.

⚠ Disconnecting the electrical load. Hazardous voltage will cause severe injury or death.

Disconnect generator set from load by opening line circuit breaker or disconnecting and taping output leads.
Determine overvoltage shutdown value based on user requirement; factory setting is 15% above nominal line-to-neutral voltage.
Remove the controller cover.
Place master switch in RUN to start the generator set.
Observe AC voltmeter; turn voltage adjustment potentiometer CW until generator set shuts down.
If the shutdown point is correct, go to step 12; otherwise continue.
Turn controller circuit board R42 adjustment potentiometer fully CW.
Place master switch to OFF/RESET to reset; then to RUN to start.
Observe AC voltmeter while turning voltage adjustment potentiometer to desired overvoltage shutdown point.
Turn R42 adjustment potentiometer slowly CCW until the generator set shuts down.
Turn controller voltage adjustment potentiometer slightly CCW.
Place master switch OFF/RESET then RUN to start; adjust for correct voltage and phase.
Place master switch OFF/RESET to stop.
Disconnect battery negative lead first; reconnect generator set to load; reconnect battery negative lead last.

Reactive Droop Compensator Adjustment Procedure adjustment

Tools: Voltmeter, Wattmeter

Remove any load; start each generator set with master switch in RUN.
Set reactive droop compensator rheostat on generator set no. 1 to minimum CCW; record rpm/frequency and voltage at 1/4 load steps to full load.
Repeat for generator set no. 2.
Compare readings; adjust voltage within 1 volt and speed within 3 rpm (or 0.1 Hz) at each load step.
Check droop compensation on each unit with an inductive load 1/2 to full load.
Adjust rheostat to approximately 4% below rated voltage at full load.
Repeat for unit no. 2.

Reactive Droop Compensator Alternate Adjustment Procedure adjustment

Tools: Voltmeter

Turn reactive droop compensator rheostat on generator set no. 1 to minimum setting.
Remove controller cover; move voltage sensing lead from V7 to V9 at the AC fuse terminal block.
Remove any load connected to the generator set.
Start the generator set with master switch in RUN.
Use controller or remote voltage adjusting potentiometer to fine adjust voltage.
Apply resistive load (1.0 power factor) until reaching rated current.
Adjust reactive droop compensator rheostat to achieve a 4% droop in voltage.
Remove the resistive load and stop the generator set.
Return voltage sensing lead from V9 to V7 at the AC fuse terminal block.
Replace the controller cover and repeat for generator set no. 2.

Underfrequency Adjustment (Over/Underfrequency Relay, Decision-Maker 3+) adjustment

Turn underfrequency adjustment potentiometer fully clockwise (CW).
Place master switch in RUN to start the generator set.
Adjust governor per engine operation manual, engine service manual, or governor section of this manual.
Slowly turn underfrequency potentiometer counterclockwise (CCW) until LED starts flashing; after about 10 seconds the set shuts down on auxiliary fault.
Place master switch to OFF/RESET to reset the controller.
Place master switch to RUN to start the generator set.
Readjust the governor to the desired frequency as required.
Place master switch to OFF/RESET to stop the generator set.

2-Wire Low Water Level Sender Test diagnostic

⚠ Hot engine and exhaust system can cause severe injury or death. Do not work on the generator set until it cools.

⚠ Hazardous voltage. Moving parts. Will cause severe injury or death. Operate the generator set only when all guards and electrical enclosures are in place.

Tools: DC voltmeter

Measure DC voltage between lead 31A (+) and ground (- ) with sender submerged in coolant; voltmeter indicates approximately 12.5 VDC.
Measure DC voltage between lead 31A (+) and ground (- ) with sender removed from coolant for at least 5-15 seconds; voltmeter indicates a drop to approximately 7 VDC.

3-Wire Low Water Level Sender Test diagnostic

⚠ Hot engine and exhaust system can cause severe injury or death. Do not work on the generator set until it cools.

⚠ Hazardous voltage. Moving parts. Will cause severe injury or death.

Tools: Ohmmeter

Measure resistance between lead 31 and ground with sender submerged in coolant; ohmmeter indicates a high resistance reading.
Measure resistance between lead 31 and ground with sender removed from coolant for at least 5-15 seconds; ohmmeter indicates a low resistance reading.

Battery Equalizer Troubleshooting diagnostic

⚠ To prevent reverse polarity damage to the battery equalizer, remove the ground (GND) connection first and attach the ground connection last when disconnecting the battery equalizer.

Tools: 12-volt test light with alligator clips, Voltmeter with 0.01 volt resolution, Battery load tester

Remove the ground (GND) connections from the battery equalizer; do not allow contact with other connections.
Verify a differential of 12 volts between the +12 volt and +24 volt terminals using a 12-volt test light; the light will illuminate on a functional unit. Remove the test light.
Connect the test light between the +12 volt and GND terminals; the light will illuminate on a functional unit.
With the test light connected, measure and record the voltage between the +12 volt and +24 volt terminals.
With the test light connected, measure and record the voltage between the +12 volt and GND terminals.
Remove the test light.
Compare the values from steps 4 and 5; the difference should be - 0.5 and +0.13 volts on a functional unit.

Oil Pressure Sender Testing diagnostic

Tools: Ohmmeter, Mechanical oil pressure gauge

Disconnect the oil pressure sender lead 7C.
Check the sender resistance with an ohmmeter.
Compare resistance values when the generator set is shut down and when running at operating temperature to Section 1, Specifications.
Use a mechanical oil pressure gauge to further verify correct readings.

Overcrank Test (Typical) diagnostic

On gas-fueled sets, disconnect the coil wire at the distributor cap and ground it or disconnect the ignition system.
On diesel-fueled sets, unplug the fuel injector harness from ECM or disconnect wire no. 70 from the injector pump solenoid.
Place unit in RUN mode; observe 15-second on-off cranking cycles and maximum 75-second elapsed time to overcrank shutdown.
Observe controller fault lamp and display for an overcrank shutdown.
Place unit in OFF/RESET mode.
Reconnect the ignition coil wire/ignition system, or reconnect the fuel injector harness/wire no. 70.

Speed Sensor Test with Generator Set Running diagnostic

⚠ Keep leads connected to the speed sensor terminals during the test; do not disconnect the leads.

Tools: DC voltmeter

Connect a DC voltmeter between positive (+) lead (wire 24) at the speed sensor and ground (wire 2) with master switch OFF/RESET; read approximately 8- 12 volts DC.
Place master switch in RUN to start the generator set.
Connect DC voltmeter negative probe to 0 terminal (wire 16 white) and positive probe to positive (+) terminal (wire 24 red); read approximately 7- 12 volts DC.
Place master switch in OFF/RESET to stop the generator set.
If sensor emits a signal, check continuity of speed sensor leads (wires 2, 16, 24) between controller P1 connector and sensor terminals.

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 master switch in OFF/RESET position.
Disconnect the speed sensor leads.
Connect speed sensor, DC voltmeter, and DC voltage source as shown.
Touch sensing surface with a flat piece of iron or steel at least 4.1 cm (1/4 cu. in.) in size.
DC voltmeter reading should equal the source voltage, approximately 12 VDC.
Remove the iron or steel piece and observe a voltmeter reading of 0 VDC.
If the sensor passes, it is functional; replace if it fails.
Connect the speed sensor leads and adjust the air gap.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

Voltage	Phase	Connection	Leads	Notes
		12-lead optional voltage connections	12	Alternator optional feature
		4-lead dedicated voltages	4	Alternator standard feature
110/127/139/240/254/277	single-phase	switchable		Towable generator model specifications; some models n/a
208/220/240/415/440/480	3-phase	reconnectable		Towable generator model specifications
208/220/240/415/440/480	3-phase	switchable		Towable generator model specifications

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Parts cataloged across the John Deere 6135 family

Part #	Description	Category
20145-17038	Air Filter	Air filter
DZ123153	ALTERNATOR	Alternator
RE537508	ALTERNATOR	Alternator
RE550906	ALTERNATOR	Alternator
RE555751	ALTERNATOR	Alternator
RE558675	ALTERNATOR	Alternator
RE558676	ALTERNATOR	Alternator
RE558678	ALTERNATOR	Alternator
20145-17044	Belt	Belt
DZ118692	FAN BELT	Belt
DZ118694	FAN BELT (LGTH = 1605 mm)	Belt
DZ119558	FAN BELT (LGTH=1635 mm)	Belt
R128806	FAN BELT (LGTH= 1765 mm)	Belt
R531878	FAN BELT (LGTH= 1805mm)	Belt
R531879	FAN BELT (LGTH=1840 mm)	Belt
20145-17042	Coolant Filter	Coolant filter
RG13879	Engine model designation and application chart	Engine identification
RG13880	Engine option code label	Engine identification
RG6135H000000	Engine serial number plate	Engine identification
AR44402	Valve Stem Lubricant	Fluid
AR54749	Soap Lubricant	Fluid
20145-17040	Fuel Filter	Fuel filter
DZ112918	SECONDARY FUEL FILTER	Fuel filter
RE539465	PRIMARY FUEL FILTER	Fuel filter
R81276	Cylinder liner shim, 0.05 mm (0.002 in.)	Gasket
20145-17036	Oil Filter	Oil filter
RE572785	OIL FILTER	Oil filter
115-2422	Battery	Service part / kit
220089	Tornillo (16 mm)	Service part / kit
220213	Tornillo (8 mm)	Service part / kit
5M4272	GENSET WEIGHT (WET) 8560 LBS	Service part / kit
776536-1	Tyco Connector for camera with PAL or NTSC signal	Service part / kit
875/65R29	Tires on 5-piece rims	Service part / kit
944K	Loader operating information is based on machine with identified linkage and standard equipment, PowerTech PSS 6135 (EPA Final Tier 4/EU Stage IV) engine, ROPS cab, rear cast bumper/counterweight, transmission side-frame guards, bottom guards, standard tires, full fuel tank, and 79-kg (175 lb.) operator. This information is affected by changes in tires, ballast, and different attachments.	Service part / kit
A34471	UN—11OCT88	Service part / kit
DZ100304	Diesel Exhaust Fluid Inline Filter	Service part / kit
DZ110562	Crankcase Vent System (USE WITH DZ113378 974G)	Service part / kit
DZ111004	DEF TANK HEADER FILTER (25 Micron)	Service part / kit
DZ111166	(3402) (3404) (3408) (3409) (974G)	Service part / kit
DZ111246	FAN PULLEY	Service part / kit
DZ111247	FAN PULLEY	Service part / kit
DZ111248	FAN PULLEY	Service part / kit
DZ112023	SHORT BLOCK ASSEMBLY	Service part / kit
DZ114640	DIESEL EXHAUST FLUID (DEF) DOSING UNIT FILTER	Service part / kit
DZ114695	DEF TANK INLET SCREEN	Service part / kit
DZ124402	DIESEL EXHAUST FLUID INLINE FILTER	Service part / kit
JDG10014	Conjunto de herramienta de extracción del manguito EUI	Service part / kit
JDG10014P1	Punta roscada	Service part / kit
JDG10014P2	Macho M10	Service part / kit
JDG1847	chavetas	Service part / kit
JDG970A	Soporte de levante de balancines	Service part / kit
JDG971	Pasadores de sincronización	Service part / kit
JDG978	Macho especial	Service part / kit
PM37418	LOCTITE® 243 (resistencia mediana, azul)	Service part / kit
PT569	Composé NEVER-SEEZ - À appliquer au pinceau, 227 g	Service part / kit
R529123	CRANKSHAFT PULLEY & DAMPER (OD=211 mm)	Service part / kit
R532124	CRANKSHAFT PULLEY & DAMPER (OD=187 mm)	Service part / kit
R87277	Suplemento de camisa (0.10 mm)	Service part / kit
RE539805	CRANKSHAFT PULLEY & DAMPER (6812)	Service part / kit
RG13887	A—Engine Serial Number B—Application Data or Type C—Serial Number Plate	Service part / kit
RG14798	Engine Serial Number/Application Data	Service part / kit
RG14813	OEM Engine Option Code Label	Service part / kit
RG40854	0000007 UN—19—06MAY05	Service part / kit
T6828AB	OILSCAN	Service part / kit
T6829AB	COOLSCAN	Service part / kit
TS206	Wear Protective Clothing	Service part / kit
TS220	Remove Paint Before Welding or Heating	Service part / kit
TS677	Install Fan Guards	Service part / kit
TS953	UN—15MAY90	Service part / kit
20145-17046	Spark Plug	Spark plug
RE539584	STARTER (12V)	Starter
RE540886	STARTER	Starter
RE70756	STARTER (12 V)	Starter
01879	STOP	Stop engine

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Aftermarket parts that fit this engine

RE167207 eBay $20.24 FridayParts $34.13 RE533608 SinoCMP $359.00 FridayParts $1772.01 RE533501 FridayParts $1772.01 SE501959 FridayParts $1772.01 DZ124926 FridayParts $1085.99 DZ107852 FridayParts $1085.99 AT326151 FridayParts $279.99 RE54073 Amazon eBay FridayParts $72.99 R532008 FridayParts $123.99 DZ107052 FridayParts $145.59 RE530816 FridayParts $1339.89 RE249801 FridayParts $135.10 RE64442 FridayParts $135.10 RE170083 FridayParts $135.10 RE515956 FridayParts $135.10 RE532949 FridayParts $38.00 RE312969 FridayParts $30.88 RE198505 FridayParts $89.99 Y125 FridayParts $89.99 R524618 FridayParts $71.54 DZ112918 Amazon eBay $117.99 NAPA $166.71 FridayParts $62.20 DZ107053 FridayParts $78.99 RE547712 FridayParts $32.99 RE549117 FridayParts $484.68 RE500657 FridayParts $619.99 DZ131463 FridayParts $845.99 RE555915 Amazon eBay $264.36 FridayParts $563.62 DZ119641 Amazon eBay $92.95 FridayParts $39.99 RE542839 FridayParts $35.64 AT13740 Amazon eBay FridayParts $12.10 AM292T FridayParts $12.10 RE500227 Amazon eBay $294.99 NAPA $195.37 FridayParts $162.35 SE501836 Amazon eBay $299.98 NAPA $195.37 FridayParts $162.35 FP-XP-0016106 FP-XP-0001471

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

Filters for this engine

Air filter: John Deere AH115833 John Deere RE67829 John Deere AZ61133 John Deere AZ61134 Donaldson P532931 Donaldson P611440 Donaldson P780006 Donaldson P781351
Fuel filter (primary): Kohler GM80460 John Deere AT365869 John Deere RE539465 Donaldson P551858 Donaldson P552952 Wix 33780 Baldwin BF1265 Wix 33969
Oil filter: Kohler GM80434 John Deere RE561823 John Deere RE538245 Donaldson P550595 Donaldson P550938 Wix 57777 Baldwin BD7310 Wix 51370

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

Also used in

John Deere 9330 — Tractor
John Deere 9410R — Tractor
John Deere 9430 — Tractor
John Deere 9460R — Tractor
John Deere 9510R — Tractor
John Deere 9510RT — Tractor Tracked
John Deere 9530 — Tractor
John Deere 9630 — Tractor
John Deere 9870 STS — Combine
John Deere S560 — Combine
John Deere S680 — Combine
John Deere S690 — Combine

Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.

Common questions

What is the oil capacity of the John Deere 6135HFG75?

The John Deere 6135HFG75 engine has an oil capacity of 42.0 liters.

What is the displacement of the John Deere 6135HFG75?

The John Deere 6135HFG75 has a displacement of 13.5 liters with 6 cylinders.

Which generators use the John Deere 6135HFG75 engine?

The John Deere 6135HFG75 powers 1 generator set(s), including Kohler 500REOZJ.

What oil filter does the John Deere 6135HFG75 use?

The John Deere 6135HFG75 uses oil filter part numbers Kohler GM80434, John Deere RE561823, John Deere RE538245.

What fuel filter does the John Deere 6135HFG75 use?

The John Deere 6135HFG75 uses fuel filter part numbers Kohler GM80460, John Deere AT365869, John Deere RE539465.

What air filter does the John Deere 6135HFG75 use?

The John Deere 6135HFG75 uses air filter part numbers John Deere AH115833, John Deere RE67829, John Deere AZ61133.

What is a common problem with the John Deere 6135HFG75 engine?

A commonly reported issue on generators using the John Deere 6135HFG75 is: Emergency Stop. Fix: Reset the emergency stop switch..