Case 1150G Crawler Dozer Repair Manual

The Case 1150G crawler dozer, produced from 1995 to 2004, was developed as a reliable mid-to-large crawler designed for earthmoving, grading, and heavy-duty construction applications. With a powerful Case six-cylinder diesel engine, full power-shift transmission, and responsive hydraulics, the 1150G combines productivity, operator comfort, and rugged design for long-term durability.

Engine
The 1150G is powered by the Case 6T-590, a six-cylinder 5.9 L diesel engine producing 124 gross horsepower and 119 net horsepower at 2,000 rpm. Delivering a maximum torque of 372 lb-ft at 1,600 rpm, the engine provides strong performance under heavy pushing and grading tasks while ensuring fuel efficiency.

Fuel System
The 1150G is equipped with a 56-gallon fuel tank, supporting long shifts without frequent refueling. Its fuel system is engineered for steady delivery, ensuring reliable power output across all operating conditions.

Electrical
A 12-volt electrical system with a 45-amp alternator powers starting, lighting, and auxiliary functions. The simple, durable setup provides reliability and ease of service in the field.

Tracks
The undercarriage features a 5-foot track gauge with 17-inch shoes, 43 shoes per side, and seven bottom rollers. With 8 ft 1 in of ground contact and ground pressure of about 6.48 psi, the 1150G offers excellent traction, flotation, and stability in varied soil conditions.

Power Train
The machine is equipped with a four-speed full power-shift transmission offering four forward and four reverse speeds. This system allows seamless shifting under load, providing efficient travel speeds up to 5.8 mph forward and 6.9 mph in reverse.

Brakes
Hydraulic wet-disc brakes ensure reliable stopping power and reduced maintenance, even in heavy-duty operating conditions. An automatic parking brake enhances safety when the machine is idle.

Hydraulics
The open-center hydraulic system delivers approximately 33.3 gallons per minute at 2,500 psi, providing smooth and responsive control for the blade and mounted equipment. With a hydraulic fluid capacity of 17 gallons, the system is designed for sustained operation under continuous loads.

Mounted Equipment
The 1150G is typically fitted with a six-way PAT (power-angle-tilt) blade, with a capacity of around 3.4 cubic yards. The dozer can also be equipped with optional rear-mounted rippers or winches, expanding its versatility for site preparation, land clearing, and utility work.

Key Highlights

• Production years: 1995 – 2004
• Engine: Case 6T-590, 6-cyl, 5.9 L diesel, 124 gross HP / 119 net HP
• Max torque: 372 lb-ft @ 1,600 rpm
• Operating weight: ~26,300 lb
• Fuel capacity: 56 gallons; Hydraulic capacity: 17 gallons
• Hydraulics: 33.3 GPM @ 2,500 psi
• Transmission: 4-speed full power-shift, 4F / 4R
• Tracks: 17 in shoes, 43 shoes per side, ~6.48 psi ground pressure
• Blade: 6-way PAT blade, ~3.4 yd³ capacity
• Brakes: Hydraulic wet-disc with automatic parking