Service Manual for International Cub 154, 184 and 185 Lo-Boy Tractors and Mowers 1969-1979
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Sample pages from the Service Manual for International Cub 154, 184 and 185 Lo-Boy Tractors and Mowers 1969-1979 manual
Purchase Information
1969-1979 International Cub 154, 184 & 185 Lo-Boy Tractor and Mower Service Manual - Technical Specifications
- Document Number / Seller:
- 30958 / Thomas Thompson
- File Size:
- 32.82 MB
- File Type:
- Language:
- English
- Pages:
- 206
- Printable:
- Yes
- Estimated Download Time:
- 0.67 Minutes
- Delivery Format:
- Digital (PDF) - Instant Access
- Category:
- Tractor
- Brand:
- International
- Reviewed and Approved:
- Dec 22, 2025
International Models and Parts Covered in this Tractor Manual
- International Cub 154 Lo-Boy (1969-1974)
- International Cub 185 Lo-Boy (1974-1976)
- International Cub 184 Lo-Boy (1977-1979)
Complete Manual Information
Master Your Classic International Cub Lo-Boy: The Ultimate Service Authority
Unlock the full potential of your International Cub Lo-Boy with the most comprehensive service manual available. This isn't just a basic repair guide; it is the definitive technical resource used by professional International Harvester mechanics to keep these legendary machines running in peak condition.
Specifically compiled for the unique offset design of the Lo-Boy series, this manual provides deep-dive technical data that you won't find in a standard operator’s manual. From the high-revving C-60 engine of the 184 to the classic driveline of the 154, every nut, bolt, and clearance is documented with precision.
Complete Model Coverage
- International Cub 154 Lo-Boy (1969-1974)
- International Cub 185 Lo-Boy (1974-1976)
- International Cub 184 Lo-Boy (1977-1979)
Expert Engine & Performance Tuning
Get under the hood of the C-60 four-cylinder engine with confidence. This guide covers everything from routine tune-ups to complete block re-boring.
- Precision Specifications: Detailed tolerances for cylinder bores (2.625–2.627 inches), crankshaft main journals (1.623–1.624 inches), and valve lash (.015 inch cold).
- Advanced Timing: Step-by-step instructions for setting ignition timing to the exact 16° BTDC at high idle required for the 184 and 185 models.
- Fuel System Mastery: Complete teardown and adjustment for both IH and Zenith up-draft carburetors, including exact float heights and jet sizes.
Professional Driveline & Transmission Service
The Cub Lo-Boy's unique mid-mounted PTO and transmission require specialized knowledge. This manual simplifies the most complex tasks:
- Clutch Systems: Comprehensive coverage for tractors below and above Serial No. U018709, plus the specialized Electric IPTO clutch found on the 184.
- Transmission & Differential: Full procedures for the 3-speed sliding spur gear transmission, including critical bevel pinion and drive gear backlash settings (.003 to .005 inch).
- Brake Calibration: Detailed steps for equalizing both single-pedal and two-pedal external contracting drum brakes to ensure safe operation.
Specialized Systems & Attachments
- Hydraulics: Service the Cessna or IH single-acting cylinders and learn to adjust the circuit relief valves (1500–1600 psi) for maximum lifting power.
- Steering & Front Axle: Keep your steering tight with cam-and-lever assembly guides and exact toe-in adjustments (1/4 inch).
- Mower Maintenance: Exclusive sections on mower spindle assembly, blade sharpening (25° angle), and drive belt tensioning.
Critical Technical Reference
- Serial Number Specifics: Includes vital changes for components like the resistor unit (Serial No. U046614 and above) and clutch configurations (Serial No. U018709 threshold).
- Torque Benchmarks: Never second-guess a bolt with clear torque specs—Cylinder Head (45 ft. lbs.), Main Bearings (55 ft. lbs.), and Flywheel (45 ft. lbs.).
- Wiring & Safety: Full schematics for the safety starting circuits and Delco Remy electrical components.
Whether you are performing a simple oil change or a ground-up restoration, this manual provides the Blue Ribbon level of detail necessary to preserve the heritage and performance of your International Cub Lo-Boy tractor.
Download Instructions for International Tractor Manual
Frequently Asked Questions - International Tractor Manual
What does this International manual cover?
This comprehensive service manual covers detailed repair procedures, maintenance schedules, troubleshooting guides, and technical specifications for Service Manual for International Cub 154, 184 and 185 Lo-Boy Tractors and Mowers 1969-1979. It includes information for the following models: - International Cub 154 Lo-Boy (1969-1974) - International Cub 185 Lo-Boy (1974-1976) - International Cub 184 Lo-Boy (1977-1979).
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 (32.82 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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