Challenger MT735, MT745, MT755, MT765 Tractor Service Manual

Product Overview

This comprehensive service manual covers the AGCO Challenger MT700 Series Tractors, including models MT735, MT745, MT755, and MT765. The manual is available in PDF format and consists of two primary manuals: the Workshop Manual with 2771 pages and the Repair Schedule Manual with 716 pages.

Book Number: 79023971 & AG331507-B
Language: English
Publication Date: October 2005

Key Features

• Detailed instructions for engine and auxiliary systems.
• Comprehensive powertrain operation and assembly guides.
• Thorough coverage of steering, brakes, and undercarriage systems.
• Extensive schematics for hydraulics and electrical systems.
• Troubleshooting tips and procedures.

Benefits

• Detailed information helping in diagnostics and repairs.
• Accurate and reliable schematics for better system understanding.
• Clear procedural guides help ensure correct maintenance practices.

Usage Recommendations

• Ideal for professional technicians servicing the MT700 series tractors.
• Useful for owners who perform their own maintenance work.
• Recommended to use alongside regular maintenance schedules.

Technical Extract

The Challenger MT700 Series tractors are equipped with a sophisticated hydraulic brake control system. This system utilizes pressurized oil from the implement hydraulic system to engage the service brakes. An accumulator, charged by the implement pump, stores pressure to ensure full braking capability even when the hydraulic system is inactive. A fully charged brake accumulator can support four to six full brake applications before needing a recharge.

Priority Valve Overview

Fig. 119: The priority valve, located on the left side of the tractor near the hydraulic oil filter, primarily directs hydraulic oil to recharge the brake accumulator. This ensures that even during intense usage of the hydraulic system, the brake accumulator is recharged with priority. While recharging occurs, certain hydraulic devices may experience a minimal drop in pressure and flow, though this is designed to be imperceptible to operational performance.