1979 Ford 1100, 1300, 1500, 1700 & 1900 Tractor Repair Manual Supplement (P/N SE 3771-S2)

• Covers 1979 Ford 1100, 1300, 1500, 1700, and 1900 tractors equipped with liquid-cooled, overhead valve diesel engines
• Integrates the official Ford Tractor Operations base repair manual SE 3771, alongside the SE 3771-S2 and SE 3771-S3 supplements
• Documents critical specifications including engine displacement, cylinder compression, and rated engine speeds
• Features 71 highly detailed exploded-view diagrams detailing hydraulic pumps, front PTO assemblies, and internal engine components
• Spanning 685 pages, this PDF manual acts as the definitive reference for resolving complex mechanical and electrical configurations
• Examines power steering gearboxes, dual clutch assemblies, main transmissions, differential gears, and rear axles
• Pinpoints electrical wiring diagrams, fuel injection pumps, magnetic clutches, safety start switches, and glow plugs

Hydraulic, PTO, and Electrical System Walkthrough

Navigating the specialized fluid and electrical systems across the Ford 1100–1900 line requires exact documentation. This manual breaks down the internal flow paths for both single and double-acting cylinders through detailed hydraulic flow schematics and cross-sectional views. It clearly maps the operational sequences across lifting, lowering, and neutral positions. Technicians working on high-pressure hydraulics must always verify complete system depressurization before cracking lines to prevent severe fluid injection injuries; this text provides the precise diagnostic routing needed to trace hydraulic pump performance safely. Subsequent sections dissect the draft control linkage. This covers both the dual linkage and position control mechanisms essential for accurate field operations.

Bypassing expensive dealership labor, independent shops can utilize the step-by-step procedures for complex tasks. Rebuilding the magnetic PTO clutch, synchronizing the diesel fuel injection pump timing, and overhauling the priority valve allow technicians to keep these profitable jobs in-house. Comprehensive troubleshooting charts, cutaway drawings, and electrical wiring diagrams quickly isolate faults in the charging circuit or safety start switch. Having this comprehensive reference on hand drastically accelerates bay turnover, allowing mechanics to trace complex faults directly to the source rather than replacing costly parts through trial and error.

Specification Highlights & Diagnostics

Factory tolerances dictate the success of any heavy diesel overhaul. The text catalogs precise engine identification codes and dimensional limits for every model variant in the series, supported by clear linkage schematics. It specifies a strict cylinder head warpage limit of 0.005 in. (0.12mm) prior to resurfacing. You will find exact intake valve stem diameters mapped to a 0.310 in. (7.88mm) minimum. The documentation also details critical fluid thresholds. Relief valve pressure settings are distinctly separated: 1849 psi (130 kg/cm2) for the 1100, while 1300–1900 models run at 2133 psi (150 kg/cm2). Connecting rod bolt torque specifications are explicitly listed down to the 3.5–4 ft-lbs (25–28 Nm) range for the 1300.

Understanding specific model quirks prevents costly rework. A critical repair pitfall on these models involves the glow plugs; technicians must never attempt to disassemble a faulty glow plug, as the internal magnesium oxide powder will burn at extremely high temperatures if exposed to ambient oxygen. Furthermore, when servicing the power steering priority valve, forcing the plunger core during extraction will irreversibly score the delicate orifice, destroying the flow division between the steering and main hydraulic circuits. Overall, the literature lays out the exact mechanical benchmarks necessary for comprehensive component inspection and adjustment.