TB228

OPERATING PERFORMANCE

Operating Weight (w 165 lb operator)        Standard machine with bucket and rubber tracks	Canopy 6,100 lb (2,767 kg)
Maximum Digging Depth	9 ft 5 in (2,875 mm)
Maximum Dump Height	10 ft 5 in (3,190 mm)
Maximum Digging Radius	15 ft 6 in (4,720 mm)
Maximum Bucket Digging Force	6,471 lb (2,935 kg)
Maximum Arm Digging Force	2,900 lb (1,325 kg)
Arm Length	4 ft 9 in (1,445 mm)
Traction Force (lbs)	6,334 lb (2,873 kg)
Sound Level (noise)	74 dB(A)

ENGINE

EPA Tier 4 Compliant
Make/Model	Yanmar 3TNV82
Cylinders/Displacement	3/81 cu in (1.3L)
Horsepower Gross (SAE J1995)	24.3 hp (18.1 Kw)
Horsepower Net (SAE 1349)	23.5 hp (17.5 Kw)
Rated Engine Speed	2400 rpm
Maximum Torque	63 ft-lb @ 1440 rpm (85.3 Nm)
Engine Lubrication	3.8 qt (3.6L)
Cooling System	4.4 qt (4.2L)
Fuel Tank Capacity	14 gal (53L)
Fuel Consumption (65% of full load)	0.8 gal/hr (3.0L/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)	3
Track Width	11.8 in (300 mm)
Track Ground Contact Length	56.7 in (1440 mm)
Ground Pressure	Canopy - 4.1 psi
Maximum Travel Speed
Low Range	1.7 mph (2.8 km/hr)
High Range	3.0 mph (4.9 km/hr)

HYDRAULIC SYSTEM

Pump Type Total Hydraulic Flow (gpm) Auxiliary Hydraulic Flow Auxiliary Hydraulic Pressure (adjustable) Hydraulic Reservoir Capacity Hydraulic System Capacity

Twin variable displacement piston pumps with two gear pumps 7.9 x 2 + 6.0 x 1 + 2.8 x 1 13.9 gal/min (52.6L/min) 3000 psi (20,684 k/Pa) 9.2 gal (35L) 14.8 gal (56L)

DIMENSIONS

Max Dig Depth Max Dump Height Max Reach Ground Level Max Vertical Dig Depth Max Dig Depth with 2 ft Flat Bottom Max Dig Depth with 8 ft Flat Bottom Width Height Length (Transport) Ground Clearance Dozer Blade Height Independent Boom Swing Angle (L/R) Min Front Swing Radius (Boom 80° left) Tail Swing Radius Lift Capacities at 9 ft 10 in (3.0m) radius                                                                     over front, Blade down +6.6 ft (2.0 m)                                                1163 lb (528 kg) Ground Level                                                  1731 lb (785 kg) -3.3 ft (1.0 m)                                                 1599 lb (725 kg)

9 ft 5 in (2875 mm) 10 ft 5 in (3190 mm) 15 ft 6 in (4720 mm) 7 ft 2 in (2190 mm) 9 ft 5 in (2868 mm) 7 ft 11 in (2411 mm) 4 ft 9 in (1450 mm) 8 ft (2445 mm) 14 ft 8 in (4460 mm) 11.7 in (300 mm) 11.8 in (300 mm) 80°/60° 4 ft 11 in (1495 mm) 4 ft 3 in (1285 mm)   over side  1163 lb (528 kg)  1169 lb (530 kg)  1161 lb (527 kg)

FEATURES

• Thumb mounting bracket
  
• 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
• EPA Tier 4 compliant engine that is efficient and quiet
• One touch engine decelerator
• Electronic engine monitoring system
• Automatic fuel bleed system
• Two speed travel with automatic shift down
• Triple flanged track rollers
• Straight travel with simultaneous operation of digging and swing functions
• Increased traction force
• Rubber or Steel tracks available
• 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 compartments
• 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