John Deere 425, 445, 455 Lawn and Garden Tractors Technical Manual
Technical reference for the John Deere 425, 445, and 455 Lawn and Garden Tractors. Covers detailed engine specifications, repair procedures, and troubleshooting. PN TM1517
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John Deere Models Covered & Key Technical Specifications
Models: John Deere 425, 445, 455
Sub-models / Variants: 425 Carbureted, 445 Fuel Injected, Export, Early, Late, Homologated
Build Years: 1992–2000
Serial Numbers: 425 (S.N. —033626, 033627—, 068728—), 455 Export (3TNA72-UJ2, 3TNA72C-UJ2, 3TNA72C-UJ2E), 415 Export (3TN66-UJ2, 3007D002)
Technical Data:
- Engine displacement: 617 cc (FD620D)
- Compression pressure (minimum): 1171 kPa (170 psi)
- Maximum compression variation: 97 kPa (14 psi)
- Crankcase vacuum (minimum): 25 mm water
- Valve clearance (cold): 0.25 mm
- Intake valve stem OD (minimum): 5.94 mm
- Exhaust valve stem OD (minimum): 5.92 mm
- Cooling system radiator max test pressure: 117 kPa
- Coolant thermostat begin-to-open temp: 63–66°C
- Engine oil capacity: 1.5 L
- Cylinder head bolt torque (final): 21 Nm
John Deere Manual Features & Content Preview
Technical Scope and Service Data
- Covers 1992–2000 John Deere 425, 445, and 455 lawn and garden tractors including 425 carbureted and 445 fuel-injected configurations
- Official John Deere publication TM1517, September 1999 edition
- Contains 47 detailed exploded-view diagrams, 16 troubleshooting matrices, and 12 engine-system diagnostic test-point charts
- Delivered as a direct download the moment payment clears
- Full-text search finds any part number in seconds
- Laid out for standard letter and A4 printing
- This 1999 edition is the definitive service manual for the 425/445/455 series, documenting the transition from carburetor vent solenoids to fuel shut-off solenoids starting at S.N. 033627
Component and Diagnostic Coverage
This John Deere 425, 445, and 455 technical manual documents the maintenance, repair, and diagnostic procedures for the FD620D engine series. The content covers core engine operations, including hydrostatic power train systems, fuel injection and carbureted fuel system components, and electrical wiring harness layouts. Detailed chapters define specifications for valve train clearances, cylinder block dimensions, and cooling system parameters, providing the necessary data for professional-grade component inspection and test adjustments.
Specification and Technical Preview
The documentation lists critical torque values for internal engine fasteners, such as cylinder head cap screws at 21 Nm and flywheel nuts at 108 Nm. Intake and exhaust valve clearances are specified at 0.25 mm for cold-engine operations. Oil pressure reference values are documented at 138–272 kPa during standard operation, while the electrical system output for the charging system is detailed at 20 amps. Reference is also provided for what an OEM service publication covers regarding engine assembly and teardown. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work.
An official 800-page John Deere OEM technical manual covering the 1992–2000 425, 445, and 455 series, documenting engine, drivetrain, steering, and electrical specifications for the FD620D engine build.
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