TB250

OPERATING PERFORMANCE

Operating Weight (w 165 lb operator)	Canopy 10,650 lb (4,829 kg)
Standard machine with bucket	Cab 10,950 lb (4,966 kg)
Maximum Digging Depth	12 ft 5 in (3,785mm)
Maximum Dump Height	13 ft 8 in (4,175 mm)
Maximum Digging Radius	19 ft 8 in (5,995 mm)
Maximum Bucket Digging Force	11,031 lb (5,003 kg)
Maximum Arm Digging Force	5,148 lb (2,335 kg)
Arm Length	5 ft 9 in (1,760 mm)
Traction Force (lbs)	12,615 lb (5,722 kg)
Sound Level (noise)	77 dB(A)

ENGINE

Make/Model	Yanmar 4TNV88
Cylinders/Displacement	4/133 cu in (2.1L)
Horsepower Gross (SAE J1995)	39.7 hp (29.6 Kw)
Horsepower Net (SAE 1349)	38 hp (28.4 Kw)
Rated Engine Speed	2400 rpm
Maximum Torque	105 ft-lb @ 1440 rpm (142.8 Nm)
Engine Lubrication	7.8 qt (7.4L)
Cooling System	13.1 qt (12.4L)
Fuel Tank Capacity	19.5 gal (74L)
Fuel Consumption (65% of full load)	1.2 gal/hr (4.5L/hr)
Electrical System	12 volts / 40 amps

UNDERCARRIAGE

Traction Drive Type	Hydrostatic drive system with automatic shift down
Parking Brake	Spring applied, hydraulically released, multiple wet friction disk
Track Roller Type	Large, permanently sealed rollers with precision metal face seals
Track Rollers (per side)	5
Track Width	15.7 in (400 mm)
Track Ground Contact Length	78.1 in (1985 mm)
Ground Pressure (psi)	Canopy        Cab
	3.9          4.0
Maximum Travel Speed
Low Range	1.7 mph (2.8 km/hr)
High Range	3.2 mph (5.2 km/hr)

HYDRAULIC SYSTEM

Pump Type	Twin variable displacement piston pumps with two gear pumps
Total Hydraulic Flow (gpm)	15.4 gal/ min (58.3L/ min)
Auxiliary Hydraulic Flow	23.4 gal/min (88.7 L/min)
Auxiliary Hydraulic Pressure (adjustable)	3000 psi (20,684 k/Pa)
Hydraulic Reservoir Capacity	13.7 gal (52L)
Hydraulic System Capacity	23.2 gal (88L)

DIMENSIONS

Max Dig Depth		12 ft, 5 in (3785 mm)
Max Dump Height		13 ft, 8 in (4175 mm)
Max Reach Ground Level		19 ft, 8 in (5995 mm)
Max Vertical Dig Depth		9 ft, 10 in (2990 mm)
Max Dig Depth with 2 ft Flat Bottom		12 ft, 5 in (3782 mm)
Max Dig Depth with 8 ft Flat Bottom		11 ft, 2 in (3401 mm)
Width		6 ft (1840mm)
Height		8 ft, 3 in (2515 mm)
Length (Transport)		18 ft, 3 in (5550 mm)
Ground Clearance		13 in (335 mm)
Min Front Swing Radius (Boom 80° left)		5 ft, 8 in (1740 mm)
Dozer Blade Height		17 in (430 mm)
Tail Swing Radius		4 ft, 8 in (1435 mm)
		13.5 in (345 mm)
Lift Capacities at 9 ft 10 in (3.0m) radius
	over front, blade down	over side
+6.6 ft (2.0m)	2948 lb (1337 kg)	2561 lb (1161 kg)
Ground Level	4735 lb (2148 kg)	2175 lb (987 kg)
-3.3 ft (1.0 m)	4621 lb (2096 kg)	2128 lb (965 kg)

FEATURES

• Thumb mounting brackets
  
• Tilt-up operator's platform
  
• Quick Change control pattern selector valve
  
• Six-way adjustable suspension seat with adjustable arm rests
  
• Standard safety features include: ROPS/FOPS/TOPS 4-post canopy, travel alarm, retractable seat belt, two front mounted work lights, and safety lockout feature for the operating controls
  
• Interim Tier 4 compliant engine that is efficient and quiet
  
• One-touch engine decelerator
  
• Electronic engine monitoring system
• Automatic fuel bleed system
• Emergency return-to-idle system
• Heavy duty, side-by-side radiator / hydraulic oil cooler
• Two speed travel with automatic shift-down
• Triple flanged track rollers
• Straight travel with simultaneous operation of digging and swing functions
• Increased traction force
• Electrohydraulic push button control of auxiliary hydraulics
• Two-way auxiliary hydraulics plumbed to arm
  
• Variable displacement piston pumps
  
• Precise and responsive, proportional pilot joystick controls
• Simultaneous operation of cab swing and two digging functions with no reduction in working speed
• Cast iron, wrap around protective counter-weight
• Hydraulic and fuel sight gauges
  
• Remote lubrication of slew and boom swing cylinders
• Cushioned main boom, arm and swing cylinders
  
• Main boom cylinder guard
• Vandalism protected lockable fuel tank and engine compartment
• Lockable operator's manual and tool storage compartments
  
• Protective routing of hydraulic hoses
• O-ring and grease seals installed on bucket pins
• Tie down points integrated into the frame