McCormick Tractor X6.420 X6.430 X6.440 Service Manual 6642500A3 – PDF DOWNLOAD

This manual refers to the X6 tractors produced by McCormick and is divided into numbered sections by subject. Subjects are listed in the general index and again, in more detail, in the specific index at the start of each section.

How McCormick numbered and updates this book

• The print number of the manual appears at the bottom left of each page; the edition / update date is at the bottom right.
• Updated pages keep the same printed number and carry the new issue date. Those pages were supplied with a reprint of the updated index.
• Information was current on the date printed on the page. McCormick updates the product range, so some details can change for technical or commercial reasons, or to meet laws in the country of use.
• If a discrepancy appears on the machine in front of you, consult a McCormick dealer or assistance centre.

This listing is 6642500A3 for X6.420 / X6.430 / X6.440. The VT-Drive workshop book is a different print number (6642520A3). Confirm transmission type before you open a gearbox or controller chapter.

Why dealers keep 6642500A3 on the bench

Complete contents — factory section map

1 — General

• Safety — 1001

Start here before a lift, a PTO shaft or a live hydraulic circuit. The general index points into every later section; the section index lists the jobs inside that chapter.

2 — Engine

• Engine

3 — Fuel system

• Tanks — 3005

4 — Electric system

• Descriptions, wiring diagrams and connectors — 4001
• Instrument cluster setup — 4002

Use 4001 for harness and connector identity. Use 4002 when the cluster must be set up after a module swap or a tractor configuration change.

5 — Steering

• Operation
• Steering column and power-steering system — 5001
• Power-steering system — 5002

6 — Transmission

The longest mechanical block in the book. Coupling and gearbox first, then rear end, PTO and the three front-axle variants so a braked Carraro is not serviced from an unbraked page.

• Operation
• Engine–transmission coupling — 6001
• Engine–gearbox assembly — 6002
• Synchronised gearbox and ranges — 6006
• Rear differential — 6012
• Side final drives — 6018
• Rear power take-off — 6019
• Front axle — without brakes — 6021
• Front axle — with brakes — 6021
• Carraro front axle — 6021

7 — Brakes

• Operation
• Adjustments and inspections — 7003

8 — Hydraulic components

• Operation
• Inspections and adjustments — 8001
• Front hitch and PTO — 8007

10 — Electronic controllers

CAN-line architecture first, then each controller with the mix of calibration, error codes, troubleshooting, descriptions and wiring that McCormick published for that module. Finish with DIAG4 programming and the CAN/ISO interface.

• CAN line controller — operation
• Hitch controller — calibration, error codes, troubleshooting, descriptions, wiring diagrams — 10002
• Suspended-axle controller — calibration, error codes, troubleshooting, descriptions, wiring diagrams — 10003
• Engine controller — error codes, troubleshooting, descriptions, wiring diagrams — 10005
• Transmission controller — calibration, error codes, troubleshooting, descriptions, wiring diagrams — 10006
• A/C controller — error codes, troubleshooting, descriptions, wiring diagrams — 10008
• Instrument-cluster controller — calibration, error codes, troubleshooting, descriptions, wiring diagrams — 10009
• Controller programming — DIAG4 Argo Tractors — 10010
• CAN/ISO interface controller — descriptions, wiring diagrams — 10012
• Trailer-brake system controller — calibration, error codes, troubleshooting, descriptions, wiring diagrams — 10014

Who this download is for

• McCormick / Argo dealers and independents working X6.420, X6.430 and X6.440
• Techs calibrating hitch, transmission or suspended-axle controllers and reading factory error codes
• Shops pulling a Carraro or braked front axle and needing the matching 6021 chapter
• Anyone programming with DIAG4 Argo Tractors who needs the 10010 chapter next to the wiring

Preview / walk-through video: https://vimeo.com/768521102

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