631 Partial Wheel Tractor-Scraper

Overview

Caterpillar offers partial wheel tractor-scraper power units designed for specialty machines that complement the traditional Cat^® product line. These tractor-only configurations are available for purchase directly from Caterpillar OEM Solutions. They can be leveraged for a variety of final machines, including water pulls, elevating scrapers, lowboy trailer power units, and more. With improvements in productivity combined with enhancements in operator comfort and new safety features – Powered Access System and effective wet disc brakes – this machine offers high returns on time and investment.

Key Features

More Comfort. More Performance. More Versatility.

Increased Comfort

Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long

Up to 8% Improved Productivity

Improvements in fuel efficiency and the new APECS transmission controls deliver more productivity in most applications

Additional Safety

New safety features help operators be more productive and work more efficiently all day long

Up To 15%

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Specifications

Tractor Engine	Cat® C18
Flywheel Power - Tractor	570 hp
Note	Meets U.S. EPA Tier 4 Final or EU Stage V emission standards, or equivalent to U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

Top Speed - Loaded	34.7 mile/h
1 Forward	3.4 mile/h
2 Forward	6.2 mile/h
3 Forward	7.7 mile/h
4 Forward	10.5 mile/h
5 Forward	14.1 mile/h
6 Forward	19 mile/h
7 Forward	25.7 mile/h
8 Forward	34.7 mile/h
Reverse	6.2 mile/h

Width - 180° Turn	40.2 ft

Brakes	ISO 3450:2011
ROPS/FOPS	ROPS: ISO 3471:2008. FOPS:ISO 3449:2005 Level II.
Cab	Seat Belt: SAE J386:FEB2006

Fuel Tank	231 gal (US)
Crankcase	13.7 gal (US)
Transmission	29 gal (US)
Differential	41.7 gal (US)
Final Drive - Each	5 gal (US)
Cooling System	19.8 gal (US)
Hydraulic Reservoir	37.5 gal (US)
Windshield Washer	1.3 gal (US)