Overview
The CaseIH STX480QT Quadtrac is an articulated crawler tractor powered by a 14.9L 6-cylinder Cummins QSX15 turbocharged diesel engine rated at 480 hp. Built in Fargo, North Dakota, this model features a 16-speed full power shift transmission and is equipped with a 154-inch wheelbase and a maximum weight of 54,000 lbs.
Ideal Applications
Engine and Power Configuration:
The tractor is equipped with a 912 ci liquid-cooled engine producing a claimed 425 hp at the PTO and utilizes a 24-volt starter system with a 300-gallon fuel capacity.
Chassis and Track Specifications:
The articulated crawler drive system supports track widths of either 30 or 36 inches and utilizes hydrostatic power steering with integrated hydraulic wet disc brakes.
Hydraulic and Hitch Capacity:
The machine features a pressure flow compensated hydraulic system with a 40 gpm pump flow and a Category IVN rear hitch rated for 19,728 lbs of lift at 24 inches.
Production
| Description | Articulated Crawler tractor / Built in Fargo, North Dakota, USA |
|---|---|
| Manufacturer | CaseIH |
Engine
| Engine type | Cummins 14.9L 6-cyl diesel |
|---|---|
| Fuel tank | 300 gal (1135.5 L) |
| Bore/Stroke | 5.394x6.654 inches (137 x 169 mm) |
| Description | Cummins QSX15 / turbocharged diesel / 6-cylinder 24-valve / liquid-cooled |
| Displacement | 912 ci (14.9 L) |
| Power | 480 hp (357.9 kW) |
| Rated RPM | 2000 |
| Starter volts | 24 |
| PTO (claimed) | 425 hp (316.9 kW) |
Transmission
| Clutch | electro-hydraulic wet disc |
|---|---|
| Gears | 16 forward and 2 reverse |
| Transmission type | 16-speed full power shift |
| Type | full power shift |
Mechanical
| Description | Integrated hydraulic wet disc brakes / Surveyor cab standard with air-conditioning. Optional luxury cab with leather trim and seating. |
|---|---|
| Drive | articulated crawler |
| Final drives | offset 3-planetary |
| Steering | hydrostatic power |
Hydraulics
| Pump flow | 40 gpm (151.4 lpm) |
|---|---|
| Type | pressure flow compensated |
Hitch
| Rear lift (at 24"/610mm) | 19728 lbs (8948 kg) |
|---|---|
| Rear Type | IVN |
PTO
| Rear PTO | independent OptOptional |
|---|---|
| Rear PTO Type | 1000 (1.75) |
Electrical
| Battery volts | 12 |
|---|---|
| Ground | negative |
Dimensions & Tires
| Max weight | 54000 lbs (24494 kg) |
|---|---|
| Wheelbase | 154 inches (391 cm) |
CaseIH STX480QT Tracks
| Width | 30 inches (76 cm) / 36 inches (91 cm) |
|---|
Dimensions & Tracks
| Description | 30-inch tracks |
|---|---|
| Wheelbase | 154 inches (391 cm) |
References
| Description | STX Series Steiger Tractors published in 2006, by CaseIH |
|---|
Variants
| STX480 | wheeled tractor |
|---|---|
| STX5480QT | crawler |