Official International Harvester Shop Manual: 706-21456 Tractor Series - Service, Repair & Troubleshooting 1963-1971
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Sample pages from the Official International Harvester Shop Manual: 706-21456 Tractor Series - Service, Repair & Troubleshooting 1963-1971 manual
Purchase & Download
Document Details
- Document Number / Seller:
- 31589 / Deborah Wilson
- File Size:
- 25.09 MB
- File Type:
- Language:
- English (some of our manuals are multilingual)
- Pages:
- 105
- Printable:
- Yes
- Estimated Download Time:
- 0.51 Minutes
- Delivery Format:
- Digital (PDF) - Instant Access
- Category:
- Tractor
- Brand:
- International
- Reviewed and Approved:
- Dec 30, 2025
Models Covered & Key Technical Specifications
-
INTERNATIONAL HARVESTER 706-1456 (I&T IH-32) — Series: 06 / 56 Edition
-
Full Coverage: 706 — 756 — 806 — 856 — 1206 — 1256 — 1456 — Gasoline / LP-Gas / Diesel — Turbo-Diesel — 2706 thru 21456 Series
-
IH C-Series & D-Series Propulsion: 6-Cylinder configuration — Displacements 263/282/291/301/310/361/407 cu in — Bore 3-11/16 to 4-5/16 in — Stroke 4-25/64 to 4-5/8 in — 80-130+ HP Range
-
Robert Bosch & Roosa-Master Injection Logic: Rotary distributor pump — IH-Ensign Induction — High idle 2530-2650 rpm — Full load 2300-2400 rpm — Firing order 1-5-3-6-2-4 — 350-425 psi Compression
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Torque Amplifier Drive Architectures: 8 forward speeds (standard) — 16 forward speeds (TA equipped) — Hi-Lo-Reverse range selector — Independent PTO (540/1000 rpm) — Multiple disc clutch
-
Cessna & Thompson Fluid Componentry: 9 GPM primary pump (Steering/Brakes) — 12 GPM lift pump — 1450-1700 psi (706-856) — 1900-2100 psi (1206-1456) — 3 GPM priority divider
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Delco-Remy & Magnetic Pulse Power: 12V negative ground — Alternator/Generator options — Starter safety linkage — Rheostat lighting — Negative ground polarity
Professional Workshop Service Manual & Technical Specifications
International Harvester Tractor Series 706-21456 Official Shop Manual
Keep your vintage iron running like new with this definitive, professional-grade shop manual. This is not a simple owner’s guide; it is the complete technical authority for the legendary International Harvester 06, 56, and 456 series tractors. Whether you are performing a routine oil change or a full engine overhaul, this manual provides the factory-spec data and step-by-step procedures required for a job done right.
Complete Model Coverage
This manual is specifically engineered to cover both Farmall and International chassis configurations across the following models:
- International 706 (1963-1967)
- International 756 (1967-1971)
- International 806 (1963-1967)
- International 856 (1967-1971)
- International 1206 (1965-1967)
- International 1256 (1967-1969)
- International 1456 (1969-1971)
- International 2706, 2756, 2806, 2856 (Industrial/Utility)
- International 21206, 21256, 21456 (Industrial/Utility)
- Farmall 706, 756, 806, 856, 1206, 1256, 1456
Professional Technical Value
This manual provides unique, model-specific data that goes beyond basic maintenance:
- Engine Mastery: Comprehensive teardown and rebuild specs for IH Gas (C263, C291, C301), LP-Gas, and the powerful Diesel/Turbo-Diesel variants (D282, D310, D361, DT361, D407, DT407). Includes critical piston-to-sleeve clearances and valve timing.
- Advanced Transmission Care: Detailed service for the Torque Amplifier (TA) and Speed Transmission. Learn how to troubleshoot the TA lock-up clutch and adjust shifting linkages for smooth operation.
- Hydraulic & Power Steering: Full diagnostics for the 9 GPM hydraulic pump and the Multiple Control Valve (MCV) system. Includes pressure test procedures (1800-1900 psi relief settings) and steering wheel slip tests.
- All-Wheel Drive & Final Drives: Exclusive sections on the front drive axle for 4WD models, including differential carrier bearing preload and bull gear maintenance.
- Essential Torque Specs: Never guess a bolt again. Includes factory torque values for cylinder heads (up to 135 ft-lbs on DT407), main bearings, and manifolds.
Key Identification Data
To ensure you are working on the correct component, use the serial number locations specified in the manual:
- Tractor Serial Number: Located on the nameplate on the right side of the clutch housing.
- Engine Serial Number: Found on the left side of the crankcase for most models. For D-310 diesel engines, it is located on the right side.
Clear Buyer Benefits
- Minimize Downtime: Use the targeted Troubleshooting Guide to identify issues like hard steering or hydraulic lift failure before they lead to expensive failures.
- Precision Repairs: Verbatim factory clearances (down to 0.0001 inch) ensure your rebuild meets original International Harvester standards.
- Save Money: Perform complex tasks yourself, such as adjusting the four-pinion differential or bleeding the power brake system, without the need for a commercial shop.
- Optimized Performance: Detailed tune-up data for injection pump timing and governor synchronization ensures your tractor delivers maximum horsepower and fuel efficiency.
This manual is the ultimate investment for the IH enthusiast or agricultural professional. It provides the clarity and technical depth needed to preserve the heritage and productivity of your International Harvester machinery for years to come.
Manual Access & Delivery Information
FAQ
Is this manual suitable for beginners?
Yes, this International manual is designed for both professional technicians and DIY enthusiasts. It includes step-by-step procedures with clear illustrations and safety guidelines for Tractor maintenance and repair.
What file format will I receive?
You will receive this manual as a PDF file (25.09 MB), which is compatible with all devices. The manual is fully searchable and printable for your convenience.
How quickly can I access the manual after purchase?
You'll receive instant access to your International Tractor manual immediately after payment completion. The download link is valid for 3 days, with lifetime re-download guarantee.
Does this include hydraulic system information?
Yes, this equipment manual covers hydraulic system operation, maintenance procedures, and troubleshooting for your International machinery.
Can I print specific sections of the manual?
Absolutely! This digital manual allows you to print any section you need, from individual pages to complete chapters, making it perfect for workshop use.
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