Case 1450 Crawler Dozer Repair Manual

The Case 1450 crawler dozer, produced between 1977 and 1985, was one of the most powerful crawler tractors in Case’s B-Series lineup. Built with a robust turbocharged diesel engine, heavy-duty undercarriage, and full power-shift transmission, the 1450 was designed for demanding earthmoving, land clearing, and grading applications. Its rugged build and straightforward serviceability made it a reliable machine for contractors and operators in heavy construction.

General
With an operating weight of about 29,000 lb, the Case 1450 offers the stability and pushing force required for large-scale jobs. The heavy-duty crawler frame and wide blade design ensure excellent traction, balance, and material handling performance.

Engine
The machine is powered by the Case A504BDT, a 6-cylinder turbocharged diesel with a displacement of 504 cu in (8.3 L). Rated at 152 gross horsepower and 140 net horsepower at 2,100 rpm, the engine delivers ample torque and efficiency for sustained dozing operations.

Fuel System
A 65-gallon fuel tank provides long operation periods between refueling. The diesel fuel system is designed for steady, efficient combustion under heavy loads, ensuring dependable engine performance in demanding conditions.

Hydraulics
The open-center hydraulic system supports smooth blade response and reliable operation of mounted equipment. With a hydraulic reservoir capacity of approximately 18 gallons, the system maintains consistent performance over long duty cycles.

Track Suspension
The undercarriage features 24-inch track shoes with 36 shoes per side, six bottom rollers, and one carrier roller. With a track gauge of about six feet, the suspension provides solid traction, flotation, and stability across varied ground conditions.

Power Train
The 1450B is equipped with a 4-speed full power-shift transmission offering four forward and four reverse speeds. Capable of forward speeds up to 5 mph and reverse speeds up to 7 mph, the system ensures smooth power delivery and efficient mobility.

Brakes
Hydraulic wet-disc brakes provide reliable stopping power and low maintenance, even in harsh operating environments. An integrated parking brake adds safety during idle or transport conditions.

Electrical System
A 12-volt electrical system with alternator charging supports reliable starts and auxiliary functions. The simple layout ensures durability and straightforward service in the field.

Mounted Equipment
The Case 1450B is fitted with a standard blade offering a heaped capacity of approximately 3.5 cubic yards. Blade control is smooth and responsive for dozing, grading, and material spreading. Optional rear-mounted equipment such as winches or rippers further expand its versatility.

Key Highlights

• Production years: 1977 – 1985
• Engine: Case A504BDT, 6-cyl turbo diesel, 504 cu in (8.3 L), 152 gross HP / 140 net HP
• Operating weight: ~29,000 lb
• Fuel capacity: 65 gallons; Hydraulic capacity: 18 gallons
• Transmission: 4-speed full power-shift (4F / 4R)
• Travel speeds: 5 mph forward, 7 mph reverse
• Blade capacity: ~3.5 yd³ heaped
• Track system: 24-in shoes, 36 shoes/side, 6 rollers + 1 carrier roller
• Brakes: Hydraulic wet-disc with parking brake
• Electrical: 12-volt system with alternator