Ford 535, 231, 233, 333, 335, 420, 515, 531, 532, 2600, 3600, 3900, 4100, 4600, 5600, 5700, 6600, 6700, 7600, 7700 Tractor and Tractor Loader - Official Service & Maintenance Reference (1975-1981)

Ford 535, 231, 335, 420, 2600-7700 Series Service & Maintenance Reference - 1975-1981

This technical reference provides factory-level diagnostic and repair protocols for the Ford 535 Tractor Loader and associated agricultural/industrial derivatives. The manual facilitates critical maintenance tasks such as the precise Woodruff key alignment in the steering linkage and gear assemblies, which is essential for preventing premature mechanical failure and ensuring operational uptime. Technical personnel can utilize these specific clearance and hardware conversion standards to maintain factory-spec tolerances across all integrated systems.

Technical Applicability & Model Generations

Industrial & Utility Chassis (3-Cylinder Variants)

• 535 Series: 3-Cylinder Tractor Loader (Production 10/75-09/78)
• Industrial / Highway Models: 231, 233, 333, 335, 420, 515, 531, 532

Agricultural Chassis (Series 2600 - 7700)

• Compact & Utility Range: 2600, 3600, 3900, 4100
• Mid-Range Production: 4600, 5600, 5700
• Heavy-Duty & Row-Crop: 6600, 6700, 7600, 7700

Specialized Configurations

• Narrow & Vineyard: 2600N/V, 3600N/V/NO, 4100N/NO, 4600N/NO
• Rice & Special Utility: 2600R, 3600R, 4600SU
• Flat Deck Models: 6600C, 7600C (1975-1976)

Operational Efficiency & Compliance

• Component-specific fastener standards ensure that metric and inch hardware are never interchanged in tapped holes, preventing thread stripping and structural compromise.
• Exploded view schematics for front and rear wheel assemblies allow for rapid identification of accessory weight configurations (Wafer and Manual Adjust types).
• Detailed brake control calibration data for models 3900 through 7700 ensures safety compliance and stopping power under maximum load conditions.

Document Metadata

• Print Number: SE 3501 (Referencing Parts & Service Fig. Search)
• Total Page Count: 508 Pages
• File Format: Optimized High-Resolution PDF

Technical Depth & Factory Benchmarks

Hardware conversion tables provide exact millimeter-to-inch substitutions for non-tapped mounting applications, such as 3/8" to 10mm or 1/2" to 12mm sizing. These benchmarks are critical for maintaining structural integrity when replacing common hardware like Woodruff keys (WOOD), wing screws (WNGS), or weatherstripping (WS). System-specific figures, such as 01A04 for front wheel assemblies, establish the baseline for all chassis-related repairs and parts synchronization.

System Architecture & Navigation Aids

The manual utilizes an alphanumeric indexing system (e.g., 01B02 for Rear Wheels, 02A02 for Brakes) to streamline the transition between component identification and service procedures. High-fidelity diagrams illustrate the differentiation between standard 24" rear wheel weights and manual adjust accessory configurations across the 2600 to 535 model range.

Table of Contents

• Wheel & Weight Systems: Front/Rear assemblies, accessory wafer weights, and manual adjust configurations.
• Braking & Control Systems: Mechanical and hydraulic brake controls for agricultural and industrial chassis.
• Front End Components: Counterweights, axle configurations, and steering linkage.
• Service Abbreviations: Global nomenclature for hardware and component identification.
• Metric/Inch Conversion: Hardware interchangeability and substitution standards.

Engineering Specifications & Hardware Limits

• Hardware Diameter Standards: 3/16" (5mm) through 5/8" (16mm) conversion tolerances.
• Fastener Length Mapping: Standardized sizing from 5/8" (15mm) to 1-1/2" (40mm).
• Material Codes: Identification of specialized components including "Vis à Oreilles" (Wing Screws) and "Alambre" (Wire) specifications.
• Application Note: Metric dimension nuts must never be utilized on inch-dimension cap screws or studs, regardless of proximity in diameter sizing.