🏷️ Basic Information Identification Make: Triumph Model: Herald Model Variant: 1200 / 12-50 Production Years: 1959-1971 Codes Chassis Code: Not specified in product info, but typically GHN/GHNP for saloon, GDU/GDUP for convertible. 👋 Introduction Market Position Market Position: Essential resource for owners and enthusiasts of the Triumph Herald 1200 and 12-50 models from 1959 to 1971, enabling DIY maintenance and repair. Competitive Analysis Competitive Analysis: This manual is an authentic 'Actual Genuine Repair Service Factory Manual', distinguishing it from less comprehensive third-party publications. Its digital format offers convenience and cost savings over physical manuals. Key Features Key Features: Comprehensive coverage, factory authenticity, step-by-step instructions, detailed illustrations, advanced troubleshooting, digital delivery for immediate access and cost savings. Cost Saving Potential: $AVE $50 - $60 PER HOUR on shop labor costs by enabling self-servicing. 📋 Manual Details Coverage Areas Years Covered: 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 Trim Levels Covered: All Styles Covered (Implies 1200 and 12-50 variants) Page Count Page Count: Hundreds of pages Manual Type Manual Type: Factory Service Repair Manual Authenticity: Actual Genuine Factory Service Manual, not a reproduction or aftermarket guide. Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Systems Covered: General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection/Fuel System, Emission System, Heater/Air Conditioning, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle Engine Service Repair Details: Engine overhaul, cylinder head removal and installation, piston and connecting rod service, crankshaft and bearing service, camshaft and valve train repair, timing gear/chain maintenance, oil pump and lubrication system, cooling system overhaul, fuel system (carburetor tuning, fuel pump, lines). Transmission Service Repair Details: Gearbox disassembly and reassembly, clutch service and replacement, overdrive unit maintenance and repair, driveshaft and universal joint service, rear axle overhaul, differential service, hub and bearing maintenance. Electrical System Details: Detailed wiring diagrams for all circuits, starter motor, generator/alternator, ignition system troubleshooting, lighting system repair, instrument cluster diagnosis, battery maintenance, wiring harness repair and replacement. Chassis Body Details: Frame inspection and repair, body panel alignment and repair, door and window mechanism service, convertible top repair, interior trim and upholstery, seat adjustment and repair, bumper and trim component installation. Steering System Details: Steering box adjustment and overhaul, tie rod end replacement, steering column service, wheel alignment specifications. Suspension Details: Front and rear suspension component inspection, replacement, and adjustment. Shock absorber service, spring replacement, control arm bushings. Brake System Details: Front disc brake service (pads, calipers), rear drum brake service (shoes, wheel cylinders), hydraulic system bleeding, parking brake adjustment, master cylinder overhaul. Cooling System Details: Radiator service, water pump overhaul, thermostat replacement, fan belt adjustment, coolant system flushing and bleeding, heater matrix service. Fuel System Details: Detailed carburetor adjustment and overhaul procedures, fuel pump testing and replacement, fuel line inspection and repair, fuel filter replacement. Procedures Included Procedures Included: Maintenance, troubleshooting, repair, rebuilding, refurbishing, restoration, diagnostic procedures, step-by-step instructions, detailed sub-steps, notes, cautions, warnings, numbered instructions, illustrations, drawings, photos, enlarged insets, advanced troubleshooting guide, electrical system diagnosis and repair, combined troubleshooting and electrical service procedures Troubleshooting Guide Coverage: Comprehensive fault diagnosis for mechanical, electrical, and fuel system issues. Specific symptom-based troubleshooting tables and diagnostic procedures. Maintenance Schedule Coverage: Regular service intervals for oil changes, lubrication, filter replacement, ignition system checks, brake system inspections, and chassis adjustments. Technical Depth Technical Depth: Complete factory-level repair and maintenance information, covering fundamentals to advanced diagnostics and repair procedures. Equivalent to what professional technicians and mechanics possess. Diagnostic Tools: While not specifying tool kits, the manual's detailed procedures imply the use of standard automotive hand tools, measurement instruments (like feeler gauges, torque wrenches), and potentially basic electrical testers. 📊 Manual Specifications File Format File Format Details: PDF. Downloadable. High resolution. Compatible with all PC-based Windows operating systems and Mac. Can be saved to hard drive or burned to CD-ROM. Searchability: PDF format with search functionality allows for quick location of specific information. Print Quality Print Quality: Printable without any restriction. Individual pages or the entire manual can be printed. Searchable function allows for targeted printing of needed pages. Print Flexibility: User can print only the necessary pages, reducing paper usage and effort, ideal for on-the-spot repairs. Binding Type Binding Type: Digital download - not applicable (user prints as needed). Paper Type Paper Type: Digital download - not applicable (user prints on desired paper). ⚙️ Engine Specifications Primary Engine Engine Type: Inline-4 cylinder, OHV (Overhead Valve) Engine Displacement 1200: 1147 cc (70.0 cu in) Engine Displacement 12-50: 1296 cc (79.1 cu in) - for 12-50 variant (though product states 1200/12-50, common knowledge indicates 1200 refers to the 1.1L engine, and 12-50 implies a later 1.3L variant or specific trim with the 1.1L engine. Manual is confirmed to cover both ranges.) Engine Code...