Challenger MT635, MT645, MT655 and MT665 Tractor Workshop Manual

Book Number: 79019427
English
Issued May 2002
Challenger MT635, MT645, MT655, MT665 Tractor Repair Workshop Manual
Manual for: AGCO Challenger MT600 Series Tractor

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