Challenger MT635, MT645, MT655, MT665 Tractor Repair Workshop Manual

Manual for: AGCO Challenger MT600 Series Tractor
Format: PDF
Book Number: 79019427
English
Issued May 2002

Challenger MT635, MT645, MT655, MT665 Tractor Workshop Manual : 2022 Pages

Challenger MT600 Series Manual TABLE OF CONTENTS

• Introduction
• Separation of assemblies
• Engine
• Clutch
• Gearbox
• Rear Axle
• Power Take off
• Front Axle
• Hydraulics
• Electrical Equipment
• Electronics
• Cab
• Accessories
• Services Tools

MT635, MT645, MT655, MT665 Manual Extract – Gearbox with Power Shuttle

On the Challenger tractors fitted with a gearbox with Power shuttle, the selector rails used for gear selection are located on the right-hand side of the gearbox and behind the control cover.
The gear selector comprises the following selector rails for:
1st and 2nd gear
Hare(Tortoise {Hi-Lo)
3rd and 4th gear
Each selector rail supports its own fork and respective selector and moves longitudinally in end-bearings.
The front bearing fixed on the rear part of the input unit is removable and serves as a support for the selector rails.
The forks are adjustable, thus ensuring a functional clearance between the pads and the synchromesh sliding coupler.

Safety locking of the gearbox selector

The system comprises two cylindrical locks of different lengths.
– short locking pin: selector rail 1st – 2nd • long locking pin: selector rail 3rd -4th Their extremities are spherical and one of them has an extended lug”
Each selector rail is machined both to lodge and to allow movement of the locks