Challenger MT525B, MT535B, MT545B, MT555B Tractor Repair Workshop Manual

Manual for: AGCO Challenger MT500B Series Tractor
Format: PDF
Book Number: 3378606M3 & 3378603M1 * 3378603M7
English
Issued June 2010

Challenger MT525B, MT535B, MT545B, MT555B Tractor Workshop Manual (3378606M3) : 3753 Pages
Challenger MT525B, MT535B, MT545B, MT555B TechStar CVT Tractor Workshop Manual  : 2982 Pages
Technician Service Book MT500B (Schematics and Electronics) : 282 Pages
Parts Catalog Manual: 955 Pages & 612 Pages

Challenger MT500B Series Manual TABLE OF CONTENTS

• Introduction
• Separation of assemblies
• Engine
• Clutch
• Gearbox
• Rear Axle
• Power Take off
• Front Axle
• Hydraulics
• Electrical equipment
• Electronics -1
• Electronics -2
• Cab and equipment
• Accessories

MT525B, MT535B, MT545B, MT555B Manual Extract – Gearbox

General
The gearbox housing consists of the following main components, in the order given:
– the power shuttle
– the input unit containing the Autopower IV – the gearbox input gear train, power shuttle version.
– the main gearbox
– the creeper unit (if fitted).
Only the gearbox is described in this section. Each main component shall be partially discussed in this section as these components are individually and more thoroughly described in their own sections.
Power shuttle
The power shuttle consists of two oil bath multidisc clutches (one for forward operation and one for reverse operation). These clutches are located to the front of the input unit, in front of the Autopower IV device.
The power shuttle is controlled by two proportional solenoid valves operated by a lever located to the left under the steering wheel and managed by the tractor electronic system.
Autopower IV input unit assembly
It allows to add four input gear ratios to the main unit, bringing to 32 the maximum number of gears for a direction of travel. This function is performed by a hydraulic control linked to two epicyclic gear trains and two hydraulic clutches.
Gearbox input gear train
The input gear train consists of two meshed pinions: – one drive pinion housed to the rear of the input unit of the power shuttle
– the other, a driven pinion secured to the gearbox mainshaft by splines.
The purpose of the gear train is to send the movement from the engine to the transmission via the power shuttle and Autopower IV hydraulic device.