CaseIH STX530QT Quadtrac

The CaseIH STX530QT Quadtrac is a tractor produced by Caseih. It is equipped with a 912 ci 14.9 L engine. The rated power output is 535 hp 398.9 kW. Transmission: 16 forward and 2 reverse. Drive type: articulated crawler. Operating weight: 51000 to 52410 pounds.

Overview

	2006 - 2007 Quadtrac SeriesArticulated Crawler tractor
2006 - 2007
Quadtrac Series
Articulated Crawler tractor

Production
Manufacturer	CaseIH
Articulated Crawler tractor
Built in Fargo, North Dakota, USA

Variants
STX530	wheeled tractor
STX530QT	crawler

CaseIH STX530QT Engine
Cummins 14.9L 6-cyl diesel
Fuel tank	300 gal 1135.5 L
Engine details ...

CaseIH STX530QT Transmission
16-speed full power shift
Transmission details ...

CaseIH STX530QT Power
Engine	535 hp 398.9 kW
PTO (claimed)	473 hp 352.7 kW
Drawbar (tested)	406.28 hp 303.0 kW
PTO (tested)	534.72 hp 398.7 kW
Performance test details ...

Mechanical
Drive	articulated crawler
Final drives	offset 3-planetary
Steering	hydrostatic power
Integrated hydraulic wet disc brakes
Surveyor cab standard with air-conditioning. Optional luxury cab with leather trim and seating.

Hydraulics
Type	pressure flow compensated
Valves	4 to 5
	4 to 9 (without 3-point hitch)
Pump flow	42 gpm 159.0 lpm
	57 gpm (High-Flow) 215.7 lpm
	94 gpm (Twin-Flow) 355.8 lpm

Tractor hitch
Rear Type	4N
Rear lift (at 24"/610mm)	19,728 lbs 8948 kg

Power Take-off (PTO)
Rear PTO	independent OptOptional
Rear PTO Type	1000 (1.75)

Dimensions & Tracks
Wheelbase	154 inches 391 cm
Weight	51000 to 52410 pounds
30-inch tracks
Full dimensions and tracks ...

Electrical
Ground	negative
Battery volts	12

References
STX Series Steiger Tractors published in 2006, by CaseIH

Engine

Engine Detail — 912 ci / 14.9 L Diesel

Manufacturer	Cummins QSX15
Configuration	turbocharged diesel, 6-cylinder 24-valve, liquid-cooled
Displacement	912 ci 14.9 L
Bore/Stroke	5.394x6.654 inches 137 x 169 mm
Power	535 hp 398.9 kW
Air cleaner	dual paper elements
Compression	17:1
Rated RPM	2100
Starter volts	24

Transmission

Transmission — 16 forward and 2 reverse full power shift

Type	full power shift
Gears	16 forward and 2 reverse
Clutch	electro-hydraulic wet disc

Dimensions

CaseIH STX530QT Tracks
Width	30 inches 76 cm
Width	36 inches 91 cm

Dimensions
Wheelbase	154 inches 391 cm

CaseIH STX530QT Weight
Shipping	51000 lbs 23133 kg
Operating	52410 lbs 23773 kg
Max capacity	54000 lbs 24494 kg

Tests

OCED Tractor Test 1911
Diesel 16-speed crawler October 2 - 24, 2007 Link: OCED Tractor Test 1911 file
PTO performance
Max power	534.72 hp 398.7 kW
Fuel use	29.3 gal/hour 110.9 l/hour
Power at rated engine speed	473.65 hp 353.2 kW
Fuel use	27.7 gal/hour 104.8 l/hour
Power at rated PTO speed	501.68 hp 374.1 kW
Fuel use	28.2 gal/hour 106.7 l/hour
Drawbar performance
Max power	406.28 hp 303.0 kW
Fuel use	27.1 gal/hour 102.6 l/hour
Gear 4 used for power test.
Max pull	50065 lbs 22709 kg
Gear 3 used for pull test.

Photos

CaseIH STX530QT Quadtrac

Case IH STX530 Quadtrac.