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CATERPILLAR - SCRAPERS



CATERPILLAR 631E SERIES II



TECHNICAL DATA AND PHOTOS




Model: CAT 631E SERIES II

Year of production: 1991 - 2001

Manufacturer: CATERPILLAR

Type: Wheel tractor scraper

Engine position: front

Drive wheel: front


ENGINE:

Model: CAT 3408E
Type: Four-stroke, V-type, turbocharged and aftercooled diesel engine.
Cooling: water-cooled
Gross power:
Gears 1 - 2: 354 kW (475 HP) at 2000 rpm
Gears 3 - 8: 384 kW (515 HP) at 2000 rpm
Net power:
Gears 1 - 2: 335 kW (450 HP) at 2000 rpm
Gears 3 - 8: 365 kW (490 HP) at 2000 rpm
Net power, gears 3 - 8:
Caterpillar: 366 kW (490 HP) at 2000 rpm
ISO 9249: 366 kW (490 HP) at 2000 rpm
EEC 80/1269: 366 kW (490 HP) at 2000 rpm
SAE J1349: 362 kW (485 HP) at 2000 rpm
DIN 70020: 508 PS at 2000 rpm
Number of cylinders: 8
Displacement: 18.0 L (1099 in3)
Bore: 137 mm (5.4 in) Stroke: 152 mm (6.0 in)


FLUID CAPACITIES:

Crankcase: 45 L (11.7 US gal)
Cooling system: 126 L (33 US gal)
Transmission: 127 L (33 US gal)
Differential: 136 L (36 US gal)
Final drive (each side): 25 L (7 US gal)
Hydraulic reservoir: 190 L (50 US gal)
Wheel coolant (each): 75 L (19.5 US gal)
Fuel tank: 814 L (215 US gal)


ELECTRICAL SYSTEM:

Electrical system: 24V
Starting system: 24 V
Alternator: 75 A
Batteries: four, 12 V, maintenancefree


TRANSMISSION:

Eight-speed automatic power shift.


MAXIMUM TRAVEL SPEEDS:

First: 4.7 km/h (2.9 mph)
Second: 8.4 km/h (5.2 mph)
Third: 11.9 km/h (7.4 mph)
Fourth: 16.1 km/h (10.0 mph)
Fifth: 21.6 km/h (13.4 mph)
Sixth: 29.3 km/h (18.2 mph)
Seventh: 39.4 km/h (24.5 mph)
Eighth: 53.5 km/h (33.2 mph)
Reverse: 9.9 km/h (6.2 mph)


HYDRAULIC SYSTEM:

Closed, full-flow filtered hydraulic circuits powered by vane-type and piston-type pumps.

Output at 2100 rpm:
Steering circuit: 398 L/min (105 gpm)
Scraper circuit: 358 L/min (95 gpm)
Cushion hitch circuit: 38 L/min (10 gpm)
Optional supplemental steering circuit: 291 L/min (77 gpm)

Relief valve setting:
Steering circuit: 13 500 kPa (1960 psi)
Implement circuit: 13 790 kPa (2000 psi)

Compensator settings for:
Cushion hitch circuit: 15 858 kPa (2300 psi)


DIMENSIONS:

Overall length: 14 560 mm (47'9")
Wheelbase: 8 769 mm (28'9")
Front of machine to front axle: 3 359 mm (11'0")
Rear axle to rear of machine: 2 432 mm (8'0")
Overall height: 4 286 mm (14'1")
Height to top of cab: 3 715 mm (12'2")
Overall width: 3 938 mm (12'11")
Width tractor: 3 481 mm (11'5")
Width front tire centers: 2 464 mm (8'1")
Width rear tire centers: 2 464 mm (8'1")
Width inside of bowl: 3 405 mm (11'2")
Height scraper blade maximum: 545 mm (21.5")
Tractor ground clearance: 665 mm (2' 2")


WEIGHTS:

Operating weight:

With ROPS cab, full fuel tank and operator.

Empty:

Front axle: 67 % - 29 575 kg (65,201 lb)
Rear axle: 33 % - 14 632 kg (32,259 lb)
Total: 44 207 kg (97,459 lb)

Loaded, based on a rated load of: 34 020 kg (75,000 lb):

Front axle: 53 % - 41 538 kg (91,576 lb)
Rear axle: 47 % - 36 688 kg (80,884 lb)
Total: 78 226 kg (172,459 lb)


SCRAPER CAPACITY:

Struck, SAE rating: 23.7 m3 (31 yd3)
Heaped, SAE rating: 16.1 m3 (21 yd3)
Maximum rated load: 34 020 kg (75,000 lb)



SCRAPER BOWL - OPERATING DATA:

Maximum depth of cut: 437 mm (17)

Width of cut (outside router bits): 3512 mm (116)

Cutting edge dimensions:

Standard:
Center section: 22 x 406 x 1580 mm
End section: 22 x 330 x 900 mm

Maximum available hydraulic penetration force at cutting edge, empty: 255 kN (57,375 lb)

Maximum depth of spread: 480 mm (18.9)

Apron closure force with cutting edge fully raised and apron opened 300 mm (12): 170 kN (38,250 lb)

Apron opening - bowl 150 mm (6) off ground level: 2007 mm (79)


TYRES:

Standard:
37.25R35, (E-3)

Optional:
37.25R35, (E-2)
37.25-35, 42PR (E-3)


Rooney Earthmoving's Caterpillar 631E Series II wheel tractor-scraper, New Zealand
Rooney Earthmoving's Caterpillar 631E Series II wheel tractor-scraper, New Zealand.
Taken on: 4 January 2013
Size of the photo: 4557 3526 pixels, 8.66 MB
Camera model: Panasonic DMC-FH25
Author of the photo: John Welsh
License: (CC BY-SA 2.0)


Rooney Earthmoving's Cat 631E Series II wheel tractor-scraper, New Zealand
Rooney Earthmoving's Cat 631E Series II wheel tractor-scraper, New Zealand.
Taken on: 15 December 2016
Size of the photo: 4032 2268 pixels, 3.83 MB
Camera model: Samsung SM-G930F
Author of the photo: John Welsh
License: (CC BY-SA 2.0)





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