Challenger
670

MODEL	670
Years Produced	(2003-2011)
ENGINE†
Horsepower, Rated - hp (kW)	350 (261)
Horsepower, Maximum - hp (kW)	370 (276)
Power Boost - hp (kW)	21 (15)
Engine Make	Caterpillar
Engine Model	C9 ACERT
Number of Cylinders	6
Piston Displacement - cu in (L)	537 (8.8)
Emission Tier Level	Tier 3
Fuel Tank Capacity - gal (L)	160 (606)
Diesel Exhaust Fluid (DEF) Tank Capacity, gal (L)	No DEF
FEEDING†
Feeder Width - in (mm)	55.4 (1407)
Feeder Speed Variable	Standard
Feeder Reverser Control	Electro-hydraulic
Feeder Tilt Adjustment	Optional
Stone / Rock Protection	Stone trap
THRESHING/SEPERATING
Threshing System Type, Rotary or Conventional Cylinder	Rotary
Number of Rotors or Cylinders	1 Rotor
Rotor or Cylinder Description	Rasp bars
Rotor or Cylinder Diameter - in (mm)	27.5 (698.5)
Rotor or Cylinder Length - in (mm)	140 (3556)
Rotor or Cylinder Speed Range - rpm	175 - 970
Threshing Area Wrap - degrees	180
Concave Adjustment	Hydrostatic
CLEANING SYSTEM
Total Sieve Area - sq in (sq m)	8,296 (5.35)
Leveling System Available	No
Cleaning Fan Description	Transverse Cleaning Fan
Cleaning Fan Speed Range - rpm	590 - 1350
GRAIN HANDLING
Grain Tank Capacity, Standard - bu (L)	300 (10572)
Optional Grain Tank Capacity - bu (L)	No optional tank
Unloading Rate - bu/sec. (L/Sec)	2.5 (88)
Unloading Auger Length, Standard - ft-in (m)	23' 9" (7.24)
Optional Auger Length - ft-in (m)	No optional auger
Reach from Machine Center, Standard Auger - ft-in (m)
Reach from Machine Center, Optional Auger - ft-in (m)	No optional auger
TIRES and TRACKS
Reference Drive Tire Size	30.5L x 32
Steering Tire Size	16.9x24
Rubber Tracks Available	No
WEIGHTS and DIMENSIONS, without Header
Weight, 2WD - lb (kg)	29,597 (13425)
Wheelbase, 2WD - in (mm)	146 (3708)
Transport Height - ft-in (m)	12' 0" (3.66)