2002 John Deere Z-Trak F620, F680, F687 Service Manual
Complete repair information for your John Deere Z-Trak F620, F680, F687. Includes detailed procedures, wiring diagrams, and specifications. PN TM1678 JUN02
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Sample pages from the 2002 John Deere Z-Trak F620, F680, F687 Service Manual manual
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John Deere Models Covered & Key Technical Specifications
Models: John Deere F620, F680, F687
Sub-models / Variants: 48-inch mower deck, 54-inch mower deck, 60-inch mower deck
Trade Names: Z-Trak
Build Years: 2002
Serial Numbers: F620 (S.N. —011536, —904680, 904681—), F680 (S.N. —011536, 011537—, —904680, 904681—), F687 (S.N. 011537—, 904681—), 48- and 54-inch mower decks (S.N. —015000), 60-inch mower deck (S.N. —015000), All mower decks (S.N. 015001—)
Technical Data:
- Engine displacement: 624 cc (F620/F680), 674 cc (F687)
- Horsepower: 20 HP (Kohler CH20S), 23 HP (Kohler CH23S)
- Transmission type: Hydro-Gear BDP-10L Hydrostatic
- Fuel tank capacity: 17 L (F620), 26.5 L (F680/F687)
- Drive system: Twin hand control levers, front wheel drive
- PTO drive: 25 mm splined shaft, electric clutch
John Deere Manual Features & Content Preview
John Deere Z-Trak F620, F680, and F687 Manual Features
- Covers the 2002 John Deere Z-Trak F620, F680, and F687 zero-turn mowers, documenting the 20 HP and 23 HP Kohler engine configurations and hydrostatic drivetrain
- Official John Deere publication P/N TM1678 JUN02, released June 2002
- Contains 47 detailed exploded-view diagrams, 2 wiring schematics, 15 torque specification tables, and 6 troubleshooting flow charts for engine and fuel systems
- Delivered as a direct download the moment payment clears
- Stored against your account so you can retrieve it after a hard-drive loss
- Full-text search finds any part number in seconds
- Laid out for standard letter and A4 printing
- This 366-page technical manual serves as the primary reference for the 2002 F620, F680, and F687 model year launch build
What the Manual Documents:
The documentation provides deep technical insight into the Z-Trak series for experienced service personnel. It organizes systems by grouping, focusing on engine diagnostics, hydrostatic transmission maintenance, and electrical schematic reviews. Major sections detail fuel system operation, mower deck assembly, and specialized maintenance for the Kohler V-Twin engine variants. The publication includes structured content regarding fastener torque values, component identification, and lubrication requirements for both North American and European service standards.
Specification Highlights:
Engine oil capacity for the Kohler V-Twin engines is documented at 1.9 liters (2.0 qt). The hydrostatic transmission hydraulic reservoir capacity is listed at 5.7 liters (1.5 gal). Engine cylinder head final torque is specified at 40.7 N·m (30 lb-ft). Spark plug gap settings are 1.02 mm (0.040 in.) for the Champion RC12YC or equivalent. For further details on machine care, refer to what an OEM service publication covers to streamline your fleet maintenance.
Note: This document is for reference only; always consult a certified technician before performing service on this equipment. An official 366-page John Deere OEM technical manual covering the 2002 F620, F680, and F687 Z-Trak mowers, documenting engine, hydrostatic, chassis, and electrical specifications for the TM1678 series build.
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