McCormick International B-23 Three-Point Mounted Mower Operator’s Manual (PDF)

This Operator’s Manual covers the McCormick International B-23 Three-Point Mounted Mower. It is a comprehensive guide for the setup, use, and maintenance of this specific piece of farm equipment.

The manual is designed for farmers, agricultural contractors, and mechanics who operate or maintain the B-23 mower. It provides in-depth information on how to correctly hitch, adjust, operate, and maintain the mower for optimal performance and long-term reliability.

Key Features Covered:

• Equipment Type: Three-point mounted tractor mower
• Models Covered: McCormick International B-23 (available with 5’ or 6’ cutter bars)
• Applications: Grass cutting and mowing in agricultural environments
• Compatible Tractors: Suited for both Category I and Category II linkages

What You’ll Learn:

• Setup and Hitching: Detailed instructions for attaching the mower to various tractor types. Includes specific procedures for Farmall, Ferguson, Fordson Major, David Brown, Nuffield, and others.
• Lubrication and Maintenance: Complete lubrication chart covering all grease and oil points. Guides on daily, weekly, and hourly service intervals.
• Adjustment Techniques: Learn how to correctly adjust cutter bar lead, knife register, mower tilt, lifting springs, height of cut, and the gag lever.
• Operational Guidance: Covers forward speed, knife speed (2,020 strokes per minute), safe raising/lowering of the cutter bar, and precautions during mowing.
• Safety Features: Includes details on the flywheel slip clutch and the automatic release bar for avoiding damage from obstructions or overloads.
• Storage and Seasonal Preparation: Best practices for off-season storage and preservation of components to extend the machine’s lifespan.
• Parts Diagrams: Visual identification of key components such as the cutter bar, pitman, shoes, stay rod, flywheel, grass board, and knife mechanism.
• Accessories and Variants: Options include plain or ball-bearing pitmans, smooth or serrated guards, and custom height shoes for ground clearance.

Tractor Compatibility Includes:

• SUPER BW-6
• SUPER BWD-6
• SUPER BM
• SUPER BMD
• Fordson Major (pre- and post-1952 models)
• Ferguson (with specific adjusters and stabilisers)
• David Brown (Category I linkage)
• Nuffield (Category II linkage)
• Farmall DED-3 and DGD-4
• McCormick B-250 and B-275 Diesel Tractors

This manual is especially useful for:

• Farmers maintaining hayfields or pastures with vintage equipment
• Mechanics performing service or setup of the B-23 mower
• Restorers of historic International Harvester implements
• Contractors working on diverse terrain with different tractor brands

The manual outlines every essential detail from lubrication to transport handling. Step-by-step diagrams help users understand each component's function and servicing needs. It ensures correct mower setup, reduces breakdowns, and improves mowing performance—especially critical during tight harvesting windows.

From practical lubrication schedules to precise hitching procedures, this document leaves no stone unturned. It gives you everything needed to operate, maintain, and preserve your B-23 mower properly, whether you’re in the field or workshop.

This is a scanned PDF copy of the original manual. It will be delivered instantly by email after purchase. No physical item will be shipped.