Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 67 kW |
| Standby kVA | 67 |
| Prime power | 61 kW |
| Oil capacity | 13.5 L |
| Alternator | Leroy-Somer LSA 44.2 VS45 |
| Voltage options | 240 V |
| Phase | 1 |
| Rated current | 279 A |
| Power factor | 1 |
| Circuit breaker | 279 A |
| Battery group | 12 V |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 23.6 L |
| Max ambient | 105 °C |
| Dimensions (L×W×H) | 1870×994×1360 mm |
| Dry weight | 1150 kg |
| Sound level | 74.0 dBA @ 23 m |
| Fuel tank | 112.0 L |
Engine
| Oil capacity | 13.5 L |
|---|---|
| Coolant capacity | 23.6 L |
| Displacement | 4.48 L |
| Aspiration | Turbo |
| Rated speed | 1800 rpm |
Filters for the John Deere 4045TF120
6Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P551352 | Lube Filter, Spin-On Full Flow | JOHN DEERE DZ118286, JOHN DEERE PMLF3703, NAPA 401062, BALDWIN B40168 | buy |
| Oil filter | P550020 | Lube Filter, Spin-On Full Flow | JOHN DEERE AR58956, JOHN DEERE AT19044T, NAPA 1243, RENAULT VI 0003132302 | KuduParts $23.00 FridayParts $25.67 |
| Fuel filter | P551130 | Fuel Filter, Box | JOHN DEERE AR50041, JOHN DEERE R16951, NAPA 3370, BALDWIN BF909 | KuduParts $37.00 |
| Fuel filter | P550090 | Fuel Filter, In-Line | JOHN DEERE AE20952, JOHN DEERE AT101565, ASV INCORPORATED 0201914, LOESING 025125 | FridayParts $45.66 |
| Fuel / water separator | P551423 | Fuel Filter, Water Separator Spin-On | JOHN DEERE RE503254, JOHN DEERE RE50455, NAPA 3531, NAPA 600091 | KuduParts $18.00 FridayParts $20.00 |
| Fuel / water separator | P551424 | Fuel Filter, Water Separator Spin-On | JOHN DEERE RE503198, JOHN DEERE RE522868, NAPA 3532, NAPA 600094 | KuduParts $16.00 FridayParts $18.50 |
Same engine, other brands
2 brandsThe John Deere 4045TF120 in this set also powers 7 generator sets sold under 2 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| SDMO | J 66 K, J 77 K, J60, J70UM, JS70U, R66K |
| Kohler | 60REOZJ |
Maintenance & consumables
for the John Deere 4045TF120| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry type air filter | — | |||
| Fuel filter | Fuel System | — | |||
| Oil filter | Oil Pressure low idle | — | |||
| Battery | 12 V battery, rack and cable | — | |||
| Belt | Skid and vibration isolators | — | |||
| Coolant | Coolant System | 23.6 L | — | ||
| Spark plug | Charge alternator 12 V | — |
Compatible filters for the John Deere 4045TF120 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
- Air filter: John Deere AL204809 John Deere T138857 John Deere AR79680 John Deere T46316 John Deere 952239
- Fuel filter: John Deere AE29052 John Deere AR29586R John Deere AR50041 John Deere DQ24057 John Deere MX85749
- Oil filter: John Deere RE519987 John Deere DZ112582 John Deere DZ118286 John Deere 40123 John Deere AR58956
Service intervals
27| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine Oil and Oil Filter | Change | 250 hr | 6 mo | First service — First change before 100 hours maximum of break-in operation |
| Engine oil and filter | Change | 100 hr | First service — First service: change at maximum 100 hours of break-in operation | |
| Battery | Check | 250 hr | 6 mo | Service battery |
| Battery | Other | 250 hr | 6 mo | Service battery |
| Engine Mounts | Check | 250 hr | 6 mo | |
| Fire Extinguisher | Other | 250 hr | 250 Hour/6 Month; also inspect once a month | |
| Fire extinguisher | Check | 250 hr | 6 mo | Standard industrial engines; at least once a month |
| Manual Belt Tensioner and Belt Wear | Check | 250 hr | 6 mo | |
| Air Intake Hoses, Connections, & System | Check | 500 hr | 12 mo | |
| Automatic Belt Tensioner and Belt Wear | Check | 500 hr | 12 mo | |
| Coolant solution analysis - add SCAs as required | Test | 500 hr | 12 mo | Test every 500 hours or 12 months |
| Cooling System | Check | 500 hr | 12 mo | |
| Cooling System | Test | 500 hr | 12 mo | Pressure test cooling system |
| Crankcase Vent Tube | Clean | 500 hr | 12 mo | Clean more often in dusty conditions |
| Engine Electrical Ground Connection | Check | 500 hr | 12 mo | |
| Engine speeds | Check | 500 hr | 12 mo | |
| Fuel Filter Element | Replace | 500 hr | 12 mo | Bleed fuel system |
| Single or dual fuel filter elements | Replace | 500 hr | 12 mo | |
| Cooling System | Other | 2000 hr | 24 mo | Flush; with COOL-GARD extend to 3000 hours/36 months, or 5000 hours/60 months if tested annually and SCAs replenished |
| Cooling system | Drain | 2000 hr | 24 mo | Flush/refill; with COOL-GARD extend to 3000 hours or 36 months; to 5000 hours or 60 months if tested annually and SCAs replenished |
| Crankshaft vibration damper (6.8 L engines) | Check | 2000 hr | 24 mo | Replace every 4500 hours or 60 months, whichever occurs first |
| Engine valve clearance | Adjust | 2000 hr | 24 mo | Check and adjust |
| Thermostats | Test | 2000 hr | 24 mo | |
| Variable speed (droop) (generator sets) | Adjust | 2000 hr | 24 mo | Generator (standby) applications |
| Engine coolant | Test | 12 mo | Test the coolant solution at intervals of 12 months or less and whenever excessive coolant is lost | |
| Supplemental coolant additive | Check | 12 mo | Replenish additives between drain intervals by adding supplemental coolant additive every 12 months or as determined by coolant testing | |
| Vibration damper | Replace | 4500 hr | 60 mo | Replace every five years or 4500 hours, whichever occurs first |
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
60| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Clearance | Air Cleaner Neck to Engine Intake—Overlap | 38 mm (1.5 in) | mm | |
| Clearance | Assembled Rod Bearing—ID | 77.876—77.927 | mm (3.0659—3.0679 in.) | |
| Clearance | Camshaft Follower Bore in Block—ID | 31.70—31.75 | mm (1.248—1.250 in.) | |
| Clearance | Camshaft Follower-to-Bore—Clearance | 0.06—0.13 | mm (0.002—0.005 in.) | |
| Clearance | Camshaft Follower—OD | 31.61—31.64 | mm (1.245—1.246 in.) | |
| Clearance | Connecting Rod Bearing-to-Journal (New Parts)—Oil Clearance; wear limit 0.152 mm (0.0060 in.) | 0.050—0.127 | mm (0.0020—0.0050 in.) | |
| Clearance | Connecting Rod Bore (Without Bearing Inserts)—ID | 82.677—82.703 | mm (3.2550—3.2560 in.) | |
| Clearance | Connecting Rod Bore—Maximum Permissible Out-of-Round | 0.038 | mm (0.0015 in.) | |
| Clearance | Crankshaft—End Play | 0.029—0.357 | mm (0.001—0.014 in.) | |
| Clearance | Cylinder Block Main Bearing Bore—ID | 84.455—84.481 | mm (3.3250—3.3260 in.) | |
| Clearance | Cylinder Head Flatness—Maximum Acceptable Out-of-Flat for Entire Length or Width | 0.08 | mm (0.003 in.) | |
| Clearance | Cylinder Head Flatness—Maximum Acceptable Out-of-Flat for Every 150 mm (5.90 in.) | 0.03 | mm (0.001 in.) | |
| Clearance | Cylinder Liner—Height above Block | 0.030—0.100 | mm (0.001—0.004 in.) | |
| Clearance | Cylinder Liner—ID | 106.48—106.52 | mm (4.192—4.194 in.) | |
| Clearance | Cylinder Liner—Maximum Taper | 0.05 | mm (0.002 in.) | |
| Clearance | Exhaust Valve Clearance For Adjusting (Rocker Arm-to-Valve Tip) | 0.46 mm (0.018 in.) | mm | engine COLD |
| Clearance | Exhaust Valve Clearance For Checking (Rocker Arm-to-Valve Tip) | 0.41—0.48 mm (0.016—0.019 in.) | mm | engine COLD |
| Clearance | Exhaust Valve Guide-to-Valve Stem (New) Clearance (four-valve) | 0.025—0.077 | mm (0.0010—0.0030 in.) | |
| Clearance | Exhaust Valve—Recess in Cylinder Head (four-valve); wear limit 1.81 mm (0.071 in.) | 0.81—1.31 | mm (0.032—0.052 in.) | |
| Clearance | Exhaust Valve—Recess in Cylinder Head (two-valve); wear limit 2.26 mm (0.089 in.) | 1.22—1.72 | mm (0.048—0.068 in.) | |
| Clearance | Fuel Supply Pump Push Rod Bore in Block—ID | 10.00—10.05 | mm (0.3937—0.3957 in.) | |
| Clearance | Fuel Supply Pump Push Rod—OD | 9.891—9.917 | mm (0.3894—0.3904 in.) | |
| Clearance | Fuel injection nozzle tip orifice ID | 0.27 | mm (0.0106 in.) | Naturally aspirated engines |
| Clearance | Fuel injection nozzle tip orifice ID | 0.29 | mm (0.0116 in.) | Turbocharged engines |
| Clearance | Fuel injection nozzle valve needle lift (based on zero lift) | 3/4 Turn Counterclockwise | turn | Conventional nozzle |
| Clearance | Intake Valve Clearance For Adjusting (Rocker Arm-to-Valve Tip) | 0.36 mm (0.014 in.) | mm | engine COLD |
| Clearance | Intake Valve Clearance For Checking (Rocker Arm-to-Valve Tip) | 0.31—0.38 mm (0.012—0.015 in.) | mm | engine COLD |
| Clearance | Intake Valve Guide-to-Valve Stem (New) Clearance (four-valve) | 0.012—0.064 | mm (0.0005—0.0025 in.) | |
| Clearance | Intake Valves—Recess in Cylinder Head (four-valve); wear limit 1.77 mm (0.070 in.) | 0.77—1.27 | mm (0.030—0.050 in.) | |
| Clearance | Intake Valves—Recess in Cylinder Head (two-valve); wear limit 1.63 mm (0.064 in.) | 0.61—1.11 | mm (0.024—0.044 in.) | |
| Clearance | Intake and Exhaust Valve Guide-to-Valve Stem Wear Limit (four-valve) | 0.15 | mm (0.0059 in.) | |
| Clearance | Intake and Exhaust Valves—Maximum Variation for a Pair of Valves (Per Cylinder) | 0.3 | mm (0.012 in.) | |
| Clearance | Main Bearing Bore Centerline-to-Cylinder Block Top Deck—Distance | 337.896—337.972 | mm (13.3029—13.3059 in.) | |
| Clearance | Maximum Permissible Height Difference at Nearest Point of Two Adjacent Liners, or Within a Single Liner | 0.05 | mm (0.002 in.) | |
| Clearance | Piston Pin-to-Bushing—Oil Clearance; wear limit 0.102 mm (0.0040 in.) | 0.020—0.056 | mm (0.0008—0.0022 in.) | |
| Clearance | Piston Rings 4045DF, TF150 and 6068DF, TF150 No. 1 Compression—End Gap | 0.33—0.58 | mm (0.013—0.023 in.) | |
| Clearance | Piston Rings 4045TF250 and 6068TF250 No. 2 Compression—End Gap | 0.75—1.00 | mm (0.030—0.039 in.) | |
| Clearance | Piston-to-Liner Clearance at Bottom of Piston Skirt (Naturally Aspirated Engines) | 0.08—0.14 | mm (0.003—0.005 in.) | |
| Clearance | Piston-to-Liner Clearance at Bottom of Piston Skirt (Turbocharged Engines) | 0.08—0.15 | mm (0.003—0.006 in.) | |
| Clearance | Rocker Arm Bore—ID (four-valve); wear limit 20.16 mm (0.794 in.) | 20.065—20.115 | mm (0.790—0.792 in.) | |
| Clearance | Rocker Arm Bore—ID (two-valve); wear limit 20.17 mm (0.794 in.) | 20.07—20.12 | mm (0.790—0.792 in.) | |
| Clearance | Rocker Arm Shaft—OD (four-valve); wear limit 19.91 mm (0.784 in.) | 19.962—20.038 | mm (0.786—0.789 in.) | |
| Clearance | Rocker Arm Shaft—OD (two-valve); wear limit 19.94 mm (0.785 in.) | 19.99—20.02 | mm (0.787—0.788 in.) | |
| Clearance | Valve Bridge—Pocket-to-Pocket Variation (Maximum) | 0.1 | mm (0.004 in.) | |
| Clearance | Valve Guide-to-Valve Stem (New) Clearance (two-valve); wear limit 0.15 mm (0.006 in.) | 0.05—0.10 | mm (0.002—0.004 in.) | |
| Clearance | Valve lift | 7/8 | turn | RSN nozzle, Tier II certified engines |
| Clearance | Vibration Damper—Maximum Radial Runout | 1.50 mm (0.060 in.) | mm | engine at operating temperature |
| Clearance | Vibration damper maximum radial runout | 1.50 | mm | engine at operating temperature |
| Gap | Magnetic pick-up probe air gap to flywheel face | 0.64 | mm (0.025 in.) | |
| Gap | Valve Face—Maximum Runout (Intake and Exhaust) | 0.038 | mm (0.0015 in.) | |
| Other | Air cleaner neck to engine intake overlap | 38 | mm | |
| Other | Auxiliary gear drive, continuous operation at 2500 rpm | 30 | kW | continuous |
| Other | Auxiliary gear drive, intermittent operation at 2500 rpm | 37 | kW | intermittent |
| Other | Coolant capacity, 4.5 L engine | 8.5 | L | |
| Other | Coolant capacity, 6.8 L engine | 11.3 | L | |
| Other | Crankshaft Journal—OD | 77.800—77.826 | mm (3.0629—3.0640 in.) | |
| Other | Damper Pulley Inner Ring—Wobble (Maximum) | 0.5 | mm (0.020 in.) | |
| Other | Damper Pulley Outer Ring—Wobble (Maximum) | 1.50 | mm (0.060 in.) | |
| Other | Damper—Maximum Radial Runout (Concentricity) | 1.50 | mm (0.060 in.) | engine at operating temperature |
| Other | Exhaust Valve Head—OD (four-valve) | 35.87—36.13 | mm (1.412—1.422 in.) |
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 |
|---|---|---|---|---|---|
| Coolant | Ethylene glycol base coolant | ASTM D6210 | Freeze protection: 40%=-24°C (-12°F); 50%=-37°C (-34°F); 60%=-52°C (-62°F) | ||
| Coolant | John Deere COOL-GARD II / COOL-GARD II PG pre-mix | ASTM D6210 | Or concentrate in 40—60% mixture with quality water. Do not use less than 40% or greater than 60% concentrate. | ||
| Coolant | John Deere COOL-GARD Prediluted Coolant (50% ethylene glycol or 55% propylene glycol) | ASTM D6210 prediluted/concentrate; ASTM D4985 requires initial SCA charge | System filled for freeze protection to -37°C (-34°F). Do not use coolant-water mixture greater than 60% glycol. Do not mix ethylene glycol and propylene glycol base coolants. | ||
| Coolant | John Deere COOL-GARD Prediluted Coolant (preferred); John Deere COOL-GARD Coolant Concentrate 40-60% mixture with quality water | ASTM D5345 (prediluted) / ASTM D4985 (concentrate) | 50% ethylene glycol provides freeze protection to -37°C (-34°F); 40% to -24°C (-12°F); 60% to -52°C (-62°F). Do not exceed 60%. | ||
| Engine oil | John Deere ENGINE BREAK-IN OIL | Alternate: API CE, CD, CC or ACEA E2, E1 (first 100 hours) | New/rebuilt engines filled at factory with break-in oil. Do not exceed 100 hours with break-in oil. | ||
| Engine oil | John Deere PLUS-50 (preferred) | ACEA E5, ACEA E4; also John Deere TORQ-GARD SUPREME, API CI-4, CH-4, CG-4, CF-4, ACEA E3, E2 (Non-Certified and Tier 1 Certified Engines) | Multi-viscosity diesel engine oils are preferred. If oils meeting API CG-4, API CF-4, or ACEA E2 are used, reduce service interval by 50%. | ||
| Engine oil | John Deere PLUS-50 (preferred); John Deere TORQ-GARD SUPREME (also recommended) | API CI-4 / CH-4 / CG-4 / CF-4; ACEA E5 / E4 / E3 / E2 | Multi-viscosity diesel engine oils preferred. If fuel sulfur >0.5% (5000 ppm), reduce service interval by 50%. During first 100 hours of new/overhauled engine use John Deere ENGINE BREAK-IN OIL or API CD/CC or ACEA E1. | ||
| Engine oil | SAE 10W-30 (if John Deere Break-In oil not available) | API CE, CD, CC; ACEA E2 or E1 | Break-in oil; change oil and filter at maximum 100 hours. Do not use Plus-50 II or CJ-4/CI-4/CH-4 etc. for initial break-in. | ||
| Engine oil | SAE 15W-40, SAE 10W-40, SAE 10W-30, SAE 5W-30, SAE 0W-40, SAE 30, SAE 40 | John Deere Plus-50 II (preferred), Plus-50, Torq-Gard; API CJ-4, CI-4 PLUS, CI-4, CH-4, CG-4, CF-4; ACEA E9, E7, E6, E5, E4, E3, E2 | Use oil viscosity based on expected air temperature range between oil changes. Reduce service interval by 50% if API CG-4, API CF-4 or ACEA E2 oils used. | ||
| Fuel | EN 590 or ASTM D975 | Cetane number 40 minimum (greater than 50 preferred, especially below -20°C (-4°F) or above 1500 m (5000 ft)). Cold Filter Plugging Point below expected low temperature or Cloud Point at least 5°C (9°F) below expected low temperature. Fuel lubricity should pass minimum 3100 gram load level (BOCLE scuffing test) / ASTM D6078 or max scar diameter 0.45 mm ASTM D6079 / ISO 12156-1. Sulfur content should not exceed 0.5% (less than 0.05% preferred); DO NOT use fuel with sulfur content greater than 1.0%. Do not mix used engine oil with diesel fuel. | |||
| Fuel | 5% blend (B5) | ASTM D6751, EN 14214, or equivalent | Bio-diesel maximum allowable concentration is a 5% blend (B5) in petroleum diesel fuel. Check engine oil level daily when air temperature is -10°C (14°F) or lower. Raw pressed vegetable oils are NOT acceptable at any concentration. | ||
| Fuel | Bio-diesel fuel | ASTM D6751, EN 14214 or equivalent; up to 5% blend (B5) | Raw pressed vegetable oils are NOT acceptable. Check engine oil level daily when air temperature is -10°C (14°F) or lower. | ||
| Fuel | Diesel fuel | EN 590 or ASTM D975; Cetane number 40 minimum (greater than 50 preferred) for Non-Certified, Tier I and Tier 2/Stage II engines | Sulfur content should not exceed 0.5%; DO NOT use diesel fuel with sulfur content greater than 1.0%. Fuel lubricity minimum 3100 gram load (BOCLE). | ||
| Fuel | Diesel fuel per EN 590 or ASTM D975 | EN 590 / ASTM D975 | Cetane number 40 minimum, greater than 47 preferred below -20°C (-4°F) or above 1675 m (5500 ft). Max sulfur 10000 mg/kg (10000 ppm). | ||
| Fuel | Grade No. 1-D fuel usable below 5°C (40°F); Grade No. 2-D otherwise | EN 590 or ASTM D975 | Cetane number 45 minimum (>50 preferred). Lubricity min load 3100 grams (ASTM D6078) or max scar diameter 0.45 mm (ASTM D6079). Sulfur <0.05% (500 ppm) preferred; DO NOT use sulfur >1.0%. Bio-diesel per ASTM PS121 or DIN 51606, up to 5% blend. | ||
| Fuel | Winter grade fuel (No. 1-D in North America) | below 0°C | Use when temperatures fall below 0°C (32°F) | ||
| Grease | John Deere SD POLYUREA GREASE (preferred) | NLGI Performance Classification GC-LB; also John Deere HD LITHIUM COMPLEX GREASE, HD WATER RESISTANT GREASE, GREASE-GARD | Consult grease supplier before mixing different types of grease. | ||
| Grease | John Deere SD POLYUREA GREASE (preferred); HD MOLY GREASE, HD LITHIUM COMPLEX GREASE, HD WATER RESISTANT GREASE, GREASE-GARD (also recommended) | NLGI Performance Classification GC-LB | Some grease thickener types are not compatible; consult supplier before mixing. | ||
| Other | John Deere COOLANT CONDITIONER / Liquid Coolant Conditioner (supplemental coolant additive) | Replenish between drain intervals every 12 months or as determined by coolant testing; premix 3% when precharging. DO NOT add SCA when drained and refilled with COOL-GARD. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Adjust Fuel Injection Nozzles adjustment
⚠ Do not manually bottom the valve with excessive force; bending of the valve may result.
Tools: JDG949 Nozzle Wrench, JDG1515-2 Pressure Adjustment Screw Lock Nut Tool, JDG1522 Pressure Adjustment Screw Tool, JDG1521 Spring Chamber Cap Wrench
- Remove nozzle from tester and install in holding fixture.
- Remove lift adjusting lock nut.
- Loosen pressure adjusting screw lock nut using JDG949 Nozzle Wrench.
- Reconnect nozzle to tester with tip pointing downward.
- Back out lift adjusting screw two or three turns to prevent bottoming.
- Turn pressure adjusting screw in (clockwise) to increase opening pressure or out to decrease.
- Remove nozzle and secure in holding fixture; tighten pressure adjusting screw lock nut to 10 N•m (7 lb-ft).
- Adjust valve lift: turn lift adjusting screw in until valve ceases to open (conventional nozzle).
- Turn lift adjusting screw out 3/4 turn counterclockwise (based on zero lift); 1/8 turn tolerance permissible.
- Tighten lift adjusting screw lock nut to 5 N•m (3.5 lb-ft).
- Recheck nozzle opening pressure and chatter.
Adjusting Variable Speed (Droop) on Generator Set Engines (Stanadyne Mechanical Injection Pumps Only) adjustment
- Warm engine to normal operating temperature.
- When necessary, disconnect throttle linkage or cable.
- Adjust slow idle and adjust fast idle speed when necessary.
- Run engine at fast idle, then apply load until reaching rated speed.
- Check power. Adjust with the screw if needed.
- Remove load from engine.
- Again check and adjust fast idle if the droop screw has been turned.
- Repeat procedure until both the engine power and the fast idle speed are correct.
- Reinstall throttle linkage if previously removed.
Check and Adjust Rotary Injection Pump Dynamic Timing adjustment
⚠ Stop engine prior to making timing adjustments; injection pump can seize if adjustment is made with engine running.
Tools: JT07158 (FKM10429A) TIME TRAC Kit, JT07177 Clamp-On Transducer, JT07172 Transducer Cable, JDG793 or JDG821 Magnetic Pick-Up Adapter, JDE81-4 or JDG1571 Timing Pin
- Install JT07158 (or FKM10429A) TIME TRAC Kit.
- Install transducer or in-line SOI sensor on No. 1 fuel injection line at nozzle end; use No. 4 or No. 6 line if access restricted.
- Install magnetic pick-up in flywheel timing hole with 0.64 mm (0.025 in.) air gap; do not stop engine at TDC.
- Engine OFF; push ON/CLEAR; select MAG PROBE, set Trig Level to 70%, press ENTER.
- Set Offset to 0 degrees and press ENTER.
- Start engine, press ENTER; run engine at 1300 rpm, press ENTER to calibrate.
- Warm engine to normal operating temperature; check slow and fast idle rpm; adjust as necessary.
- Run engine at wide open throttle and load engine down gradually to rated speed rpm.
- Record engine speed and timing degrees; compare to Section 06, Group 210 or machine technical manual.
- Stop engine; loosen injection pump mounting flange nuts and adjust pump timing.
- To advance timing rotate top of pump clockwise (viewed from rear/flywheel end); to retard rotate counterclockwise.
- Tighten injection pump mounting flange nuts to 27 N•m (20 lb-ft).
- Start engine and recheck dynamic timing; adjust as needed.
- Grind away original front plate timing mark and stamp a new mark aligned with injection pump flange mark.
Check and Adjust Slow Idle Speed—Denso Fuel Injection Pump adjustment
⚠ ALWAYS STOP ENGINE before making adjustments.
⚠ Bumper spring screw should not be used by itself to change engine speed more than 50 rpm.
Tools: Tachometer
- With engine running, pull governor control lever rearward to slow idle speed position; check speed.
- Remove slow idle stop screw cover.
- Loosen lock nut and back out bumper spring adjusting screw three turns.
- Loosen lock nut and adjust slow idle stop screw to obtain idle 30—50 rpm less than desired slow idle setting.
- Turn bumper spring adjusting screw in to increase engine speed a maximum of 30—50 rpm to desired slow idle.
- If surging persists, replace bumper spring and adjustment screw.
- Recheck fast and slow idle speeds; readjust slow idle if needed.
- Check all adjusting screw lock nuts for tightness; install covers.
- Connect fuel shut-off cable and speed control rod.
Check and Adjust Valve Clearance adjustment
⚠ Valve clearance MUST BE checked and adjusted with engine COLD.
⚠ To prevent accidental starting, always disconnect NEGATIVE (—) battery terminal.
Tools: JDE83 or JD81-1 Flywheel Turning Tool, JDG1571 or JDE81-4 Timing Pin, Feeler gauge, JDG966 Crankshaft Front/Rear Rotation Adapter
- Disconnect NEGATIVE (–) battery terminal. Remove rocker arm cover and crankcase ventilator tube.
- Remove plugs from timing/rotation hole and timing pin hole.
- Rotate flywheel in running direction until No. 1 cylinder is at TDC compression stroke.
- Insert timing pin in flywheel to lock engine.
- Check valve clearance to cold specifications.
- Loosen jam nut on rocker arm adjusting screw; turn screw until feeler gauge slips with slight drag.
- Hold adjusting screw and tighten jam nut to specification; recheck clearance.
- Replace rocker arm cover and crankcase ventilator tube.
Check and Adjust Valve Clearance (Four-Valve Head Engines) adjustment
⚠ Adjust with engine COLD
⚠ Replace valves, seats, springs and retainers in pairs; also replace bridge
Tools: JDE83 Flywheel Turning Tool, JDG1571 Timing Pin, Feeler gauge
- Disconnect NEGATIVE battery terminal.
- Remove rocker arm cover and crankcase ventilator tube.
- Remove plugs from timing/rotation hole and timing pin hole.
- Rotate flywheel until No. 1 cylinder is at TDC compression; insert timing pin.
- Loosen jam nut on rocker arm adjusting screw.
- Turn adjusting screw until feeler gauge slips with slight drag.
- Tighten jam nut to 27 N•m (20 lb-ft) and recheck clearance.
Check and Adjust Valve Clearance (Two-Valve Head Engines) adjustment
⚠ Valve clearance MUST be checked and adjusted with engine COLD
⚠ Disconnect NEGATIVE battery terminal to prevent accidental starting
Tools: JDE83 or JDE81-11 Flywheel Turning Tool, JDG1571 or JDE81-4 Timing Pin, Feeler gauge
- Disconnect NEGATIVE battery terminal.
- Remove rocker arm cover and crankcase ventilator tube.
- Remove plugs from engine timing/rotation hole and timing pin hole.
- Rotate flywheel until No. 1 cylinder is at TDC compression; insert timing pin.
- Loosen jam nut on rocker arm adjusting screw.
- Turn adjusting screw until feeler gauge slips with a slight drag.
- Tighten jam nut to 27 N•m (20 lb-ft) and recheck clearance.
Manual Belt Tensioner Adjustment adjustment
⚠ Do not pry against alternator rear frame.
Tools: JDG1341 Belt Tension Gauge
- Install JDG1341 Belt Tension Gauge on belt halfway between pulleys.
- Loosen cap screws (B) and (C).
- Slide alternator or tensioner bracket in slot to remove all excess slack.
- Stretch belt by prying outward on alternator front frame or tensioner bracket.
- Tighten cap screws (B) and (C).
- Run engine for ten minutes and immediately re-check belt tension per used belt specification.
- Reset belt tension as necessary.
Manual Belt Tensioner Adjustment Using Belt Tension Tool (Alternate Method For Engines Without Auxiliary Drive) adjustment
Tools: JDG1520 Belt Tension Tool, Torque wrench
- Loosen upper and lower alternator bracket cap screws. Keep lower cap screw snug enough to prevent excessive play.
- Insert JDG1520 Belt Tension Tool behind belt and over alternator mounting screw.
- Place torque wrench on belt tensioning tool at 90° to tool. Pivot alternator until desired torque is achieved.
- While holding tension with torque wrench, scribe a reference mark on alternator in line with notch on upper alternator bracket.
- Continue to hold tension and tighten upper alternator bracket cap screw.
- Check position of reference mark to see if alternator moved while tightening.
- Remove belt tension tool and tighten lower alternator bracket cap screw.
Check Cold Start Advance System Operation—Rotary Pumps diagnostic
⚠ After checks are completed, return cold start circuits to original configuration to ensure proper injection pump timing and conformance to emission control standards.
Tools: JT07158 (FKM10429A) TIME TRAC Kit, Jumper wire
- Install JT07158 (FKM10429A) TIME TRAC Kit; checks must be performed on a cold engine.
- Verify voltage potential (12 or 24 volts) to the cold start solenoid.
- Disconnect wiring connector from the cold start advance solenoid.
- Start cold engine and run at 1200 rpm; check and record injection pump timing.
- Connect wiring connector to cold start advance solenoid.
- After approximately 30 seconds, check injection pump timing.
- Stanadyne: there should be a 7—10° increase in timing; Delphi/Lucas: a 7—10° decrease.
- If no change, service the cold start advance solenoid and valve, or have the injection pump serviced by an authorized ADS Diesel Repair Station.
Measure Valve Lift diagnostic
⚠ Measure at 0.00 mm clearance and with engine COLD
Tools: JDG1571 or JDE81-4 Timing Pin, Flywheel turning tool, Dial indicator
- Remove rocker arm cover.
- Set No. 1 piston at TDC compression and install timing pin.
- Set rocker arm-to-valve tip clearance to 0.00 mm for the appropriate valves.
- Place dial indicator on top of valve spring cap or rotator; set dial to 0.
- Remove timing pin and rotate engine one full revolution (360°).
- Record maximum dial reading as valve reaches full open.
- Compare to specification; if out of spec, inspect entire valve train and camshaft.
Pressure Testing Cooling System diagnostic
⚠ Explosive release of fluids from pressurized cooling system can cause serious burns. Only remove filler cap when cool enough to touch with bare hands.
Tools: D05104ST Tester
- Test radiator cap: remove radiator cap and attach to D05104ST Tester.
- Pressurize cap to specification. Gauge should hold pressure for 10 seconds within normal range.
- If gauge does not hold pressure, replace radiator cap.
- Remove the cap from gauge, turn it 180°, and retest cap.
- Test cooling system: allow engine to cool, remove radiator cap, fill radiator with coolant to normal operating level.
- Connect gauge and adapter to radiator filler neck and pressurize cooling system to radiator cap specification.
- With pressure applied, check all cooling system hose connections, radiator, and overall engine for leaks.
- If leakage is detected, correct and pressure test again.
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
What is the power rating of the John Deere 4045TF120?
The John Deere 4045TF120 is rated 67 kW standby (67.0 kVA).
What engine is in the John Deere 4045TF120?
The John Deere 4045TF120 is powered by the John Deere 4045TF120 engine.
What kind of fuel does the John Deere 4045TF120 run on?
The John Deere 4045TF120 runs on Diesel.
What is the oil capacity of the John Deere 4045TF120?
The John Deere 4045TF120 engine in the John Deere 4045TF120 has an oil capacity of 13.5 liters.
How much coolant does the John Deere 4045TF120 hold?
The John Deere 4045TF120 cooling system holds 23.6 liters (6.2 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the continuous rating of the John Deere 4045TF120?
The John Deere 4045TF120 is rated 61 kW prime (61 kVA), against 67 kW standby.
What is the sound level of the John Deere 4045TF120?
The John Deere 4045TF120 is rated at 74.0 dBA at 23 m, per the manufacturer specification sheet.
How much does the John Deere 4045TF120 weigh?
The John Deere 4045TF120 has a dry weight of 1150 kg (2535 lb).
What size fuel tank does the John Deere 4045TF120 have?
The John Deere 4045TF120 has a 112 liter (30 US gallon) fuel tank.
What voltages is the John Deere 4045TF120 available in?
The John Deere 4045TF120 is offered in 240 V, 1-phase.
What battery does the John Deere 4045TF120 use?
The John Deere 4045TF120 uses 1 battery, 12 V each, group 12 V, per the manufacturer specification sheet.
What alternator does the John Deere 4045TF120 use?
The John Deere 4045TF120 uses a Leroy-Somer LSA 44.2 VS45 alternator.
Which oil filter part number does the John Deere 4045TF120 take?
The John Deere 4045TF120 uses oil filter part numbers JOHN DEERE RE519987, JOHN DEERE DZ112582.
What fuel filter fits the John Deere 4045TF120?
The John Deere 4045TF120 uses fuel filter part numbers JOHN DEERE AE29052, JOHN DEERE AR29586R.
Which air filter part number does the John Deere 4045TF120 take?
The John Deere 4045TF120 uses air filter part numbers JOHN DEERE AL204809, JOHN DEERE T138857.
Repair guides
43- Adjust Fuel Injection Nozzles
- Adjusting Variable Speed (Droop) on Generator Set Engines (Stanadyne Mechanical Injection Pumps Only)
- Bleed the Fuel System
- Bleeding the Fuel System
- Changing Engine Oil and Replacing Filter
- Check and Adjust Rotary Injection Pump Dynamic Timing
- Check and Adjust Slow Idle Speed—Denso Fuel Injection Pump
- Check and Adjust Valve Clearance
- Check and Adjust Valve Clearance (Four-Valve Head Engines)
- Check and Adjust Valve Clearance (Two-Valve Head Engines)
- Check Cold Start Advance System Operation—Rotary Pumps
- Checking Belt Tensioner Spring Tension and Belt Wear (Automatic Tensioner)
- Daily Prestarting Checks
- Flushing and Refilling Cooling System
- Flushing Cooling System
- Grind Valve Seats (Two-Valve Head Engines)
- Install Crankshaft Rear Oil Seal and Wear Sleeve
- Install Cylinder Head (Two-Valve Head Engines)
- Install Cylinder Liner in Block
- Install Denso Fuel Injection Pump
Step-by-step procedures compiled from the John Deere service manual for this model.
Parts
52| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 223456 | O-ring | 1 | Seal | Amazon eBay |
| 223471 | Line, fuel no. 1 | 1 | Fuel | eBay |
| 223491 | O-ring | 1 | Seal | Amazon eBay |
| 223536 | Camshaft (without gear) | 1 | Camshaft | eBay |
| 223540 | Line, fuel no. 2 | 1 | Fuel | eBay |
| 223564 | O-ring kit | 1 | Seal | Amazon eBay |
| 223574 | Line, fuel no. 1 | 1 | Fuel | eBay |
| 223575 | Line, fuel no. 2 | 1 | Fuel | eBay |
| 223576 | Line, fuel no. 3 | 1 | Fuel | eBay |
| 223577 | Line, fuel no. 4 | 1 | Fuel | eBay |
| 223583 | Holder | 1 | Seal | Amazon eBay $178.48 |
| 223585 | Pump, fuel | 1 | Pump | Amazon eBay |
| 223591 | Kit, solenoid | 1 | Injector | Amazon eBay |
| 223592 | Kit, starter motor, 24 V | 1 | Starter | eBay |
| 223593 | Kit, starter motor, 12 V | 1 | Starter | eBay |
| 223595 | Thermostat | 1 | Thermostat | eBay |
| 223640 | Belt, 11/16 x 49 1/2 in. | 1 | Belt | Amazon eBay $149.99 |
| 223851 | O-ring | 1 | Seal | eBay |
| 224263 | Belt set (matched set of 2) | 1 | Belt | Amazon eBay $20.00 |
| 336434 | Gasket | 1 | Gasket | eBay |
| 360098 | Clamp | 1 | Elbow | eBay |
| 360178 | Line, fuel no. 4 | 1 | Fuel | eBay |
| 360483 | Belt, fan | 1 | Belt | Amazon eBay $30.00 |
| 360585 | Gasket | 1 | Gasket | eBay |
| GM23827 | Belt (1545 mm) | 1 | Belt | Amazon eBay |
| GM28308 | Belt (1515 mm) | 1 | Belt | Amazon eBay |
| 223502 | Valve | 1 | Service part / kit | eBay |
| 223503 | Bushing | 1 | Service part / kit | eBay |
| 223504 | Plate, thrust | 1 | Service part / kit | eBay |
| 223505 | Washer | 1 | Service part / kit | eBay |
| 223506 | Cap, bearing | 1 | Service part / kit | eBay |
| 223507 | Spring | 1 | Service part / kit | eBay |
| 223508 | Screw, w/washer | 1 | Service part / kit | eBay |
| 223509 | Screw, 1/4-20 x 7/8 in. cap | 1 | Service part / kit | eBay |
| 223572 | Clamp | 1 | Service part / kit | eBay |
| 223573 | Screw, M6 x 10 cap | 1 | Service part / kit | eBay |
| 223578 | Fitting | 1 | Service part / kit | eBay |
| 223580 | Bolt | 1 | Service part / kit | eBay |
| 223581 | Screw | 1 | Service part / kit | eBay |
| 223582 | Frame | 1 | Service part / kit | eBay |
| 223584 | Yoke | 1 | Service part / kit | eBay |
| 223586 | Motor, starting | 1 | Service part / kit | eBay |
| 223587 | Motor, starting 24 V | 1 | Service part / kit | eBay |
| 223588 | Cover | 1 | Service part / kit | eBay |
| 223589 | Band, tie | 1 | Service part / kit | eBay |
| 223590 | Label | 1 | Service part / kit | eBay |
| 223594 | Screw, M10 x 30 | 1 | Service part / kit | eBay |
| 223609 | Key, shaft | 1 | Service part / kit | eBay |
| 223610 | Camshaft (without gear) | 1 | Service part / kit | Amazon eBay |
| 352836 | Pulley | 1 | Service part / kit | eBay |
| 360583 | Spacer | 1 | Service part / kit | eBay |
| 360584 | Sleeve | 1 | Service part / kit | eBay |
Service, wear & replacement parts referenced for this model and its engine — 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 | 50% | 10.6 | 2.8 |
| Prime | 75% | 14.5 | 3.8 |
| Prime | 100% | 19.0 | 5.0 |
| Standby | 100% | 20.5 | 5.4 |
Available documents
Engine spec — 06-05 John Deere 4045, 6068 (John Deere)Engine spec — John-Deere-4045-6068-eng (John Deere)Spec sheet (Kohler)Spec sheet — J70UM (SDMO)Spec sheet — JS70U (SDMO)Reference — J70U (SDMO)Reference — TELYS KOHLER-SDMO POWER PRODUCTS (SDMO)Owner's manual — JD 4045-6068 01FEB02 (John Deere)Owner's manual — TP5853 (John Deere)Owner's manual — TP5853F (John Deere)Owner's manual — TP6678 (John Deere)Owner's manual — TP6680 (John Deere)Owner's manual — TP6683 (John Deere)Parts manual — John Deere Parts Y023 (John Deere)Parts manual — john-deere-service-manual-service-parts (John Deere)Parts manual — tp5434 (John Deere)Service manual — CTM104 30JUN05 PWT4.5and6.8Base GB (John Deere)Service manual — CTM207 JD 4045 6068 Mechanical Fuel (John Deere)Service manual — Eng SM tp5854 (John Deere)
This page was generated from the 19 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.