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

4.5starstarstarstarstar_half(4)
visibility Preview Available
John Deere 2002 John Deere Z-Trak F620, F680, F687 Service Manual manual page preview - page 1 of 366

Sample pages from the 2002 John Deere Z-Trak F620, F680, F687 Service Manual manual

John Deere 2002 John Deere Z-Trak F620, F680, F687 Service Manual manual preview page 1 - thumbnail
John Deere 2002 John Deere Z-Trak F620, F680, F687 Service Manual manual preview page 2 - thumbnail
John Deere 2002 John Deere Z-Trak F620, F680, F687 Service Manual manual preview page 3 - thumbnail
info_outline Click thumbnails to preview different pages

Purchase & Download

$19.49 (incl. VAT) Instant Download / No Shipping Fees
12 sold in the last 30 days
OR BUY NOW
verified_user
Lifetime Access
Re-download anytime
flash_on
Instant Download
Get it immediately
lock
Secure Payment
PayPal

Document Details

keyboard_arrow_down
Document Number / Seller:
27533 / Mary Bell
File Size:
46.30 MB
File Type:
PDF
Language:
English
Pages:
366
Printable:
Yes
Category:
Mower
Last updated / verified
Apr 10, 2025

Models Covered & Key Technical Specifications

John Deere F620, F680, F687 (TM1678 JUN02) – 2002 Z-Trak Service Manual

Complete repair information for your John Deere Z-Trak F620, F680, F687. Includes detailed procedures, wiring diagrams, and specifications. PN TM1678 JUN02 | Z-Trak Mowers

  • Engine Specifications: 20 HP Kohler CH20S and 23 HP Kohler CH23S engines provide reliable power.
  • Fuel Tank Capacity: F620 holds 17 L (4.5 gal), while F680 and F687 models hold 26.5 L (7 gal).
  • Drive Wheels: Equipped with 20 x 10-10 tubeless drive wheels for excellent traction.
  • Tire Pressure: Maintain 69 kPa (10 psi) in the drive wheels for optimal performance.
  • Mower Deck: Features cutting widths of 122, 137, or 152 cm (48, 54, or 60 in.) for versatile landscaping.
  • Machine Dimensions: Overall width without mower is 100 cm (39.5 in.) for maneuverability.

Professional Workshop Service Manual & Technical Specifications

John Deere Z-Trak F620, F680, F687 Technical Manual: 2002 Service & Repair Manual for Z-Trak Mowers Documentation-Set

Coverage-Scope: 366 pages // Serial-Range: All Models // Maintenance-Category: Engine, Electrical, PTO, Hydraulics, Troubleshooting

The documentation is partitioned into

Engine Section Overview

The Engine section provides comprehensive details on the Kohler CH20S and CH23S engines. It includes specifications, troubleshooting guides for various engine malfunctions, and detailed repair procedures for components such as the fuel tank, fuel filter, carburetor, and more. Specific sub-sections cover testing and adjustments, including cylinder leakdown tests and crankcase vacuum tests.

Electrical System Schematics

The Electrical section offers detailed wiring diagrams and component locations for the F620 and F680/F687 models. It covers power circuits, starting circuits, ignition and charging systems, as well as troubleshooting charts for common electrical issues. Each component and wire is clearly identified for easy referencing.

PTO/MCS Clutch Operation and Diagnosis

This section details the operation and diagnosis of the Power Take-Off (PTO) clutch and the Material Collection System (MCS) clutch. It explains how these systems are energized and provides troubleshooting steps for potential malfunctions, ensuring optimal performance of these features.

Wiring Harness Diagrams

Extensive wiring harness diagrams are provided for both the F620 and F680/F687 models. These diagrams illustrate the main wiring harness, engine wiring harness, and optional systems like the fuel gauge and material collection system, facilitating efficient troubleshooting and repair.

Troubleshooting Charts and Procedures

The manual includes detailed troubleshooting charts for both the electrical system and the engine. These charts help to quickly identify potential problems and guide the technician through diagnostic steps. Specific procedures for common issues like hard starting, low power, or electrical faults are clearly outlined.

Specifications and design subject to change without notice.

Torque specifications for various engine components, such as mounting nuts and cap screws, are documented to ensure proper assembly and seal compression uniformity.

FAQ

What **components** are covered in the electrical system section? keyboard_arrow_down

The electrical system section details components including fuses, relays, switches, ignition modules, starter motor, battery, stator, voltage regulator/rectifier, hour meter, fuel gauge, and PTO clutch.

Confirm the **precise** torque value for the engine mounting cap screws. keyboard_arrow_down

32 N•m (24 lb-ft) is the specified torque for the engine mounting cap screws to ensure secure installation.

What tools are needed for **proper** spark plug gap adjustment? keyboard_arrow_down

A feeler gauge is the primary tool required for proper spark plug gap adjustment, along with a torque wrench for installation to 27 N•m (20 lb-ft).

Identify the **standard** procedures for checking the fuel gauge sender. keyboard_arrow_down

For the fuel gauge sender (B2), check resistance between 0–240 ohms; if it's not within range, perform the OPTIONAL FUEL GAUGE SENDER UNIT TEST.

Customer Reviews

Read what our customers say about this John Deere Mower manual and share your own experience.

Add a Review

* Required information
1000
Captcha Image

Reviews (4)

Avatar
New
Rated 4 out of 5 stars
Avatar
New
Rated 4 out of 5 stars
Avatar
New
The download process was seamless, and I received my link almost instantly. Customer support was very helpful with my questions about the manual. A must-have for John Deere owners!
Avatar
New
This service manual is a game changer! The troubleshooting charts are incredibly detailed, making repairs a breeze. Highly recommend for anyone maintaining their Z-Trak!