TB228

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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	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 (1.3 L)
Horsepower Gross (SAE J1995)	24.3 hp (18.1 kW)
Horsepower Net (SAE 1349)	23.5 hp (17.5 kW)
Rated Engine Speed	2,400 rpm
Maximum Torque	63 ft-lb @ 1,440 rpm (85.3 Nm)
Engine Lubrication	3.8 qt (3.6 L)
Cooling System	4.4 qt (4.2 L)
Fuel Tank Capacity	14 gal (53 L)
Fuel Consumption (65% of full load)	0.8 gal/hr (3.0 L/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 (1,440 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 (52.6 L/min) 3,000 psi (20.6 MPa) 9.2 gal (35 L) 14.8 gal (56 L)

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 (Offset) Tail Swing Radius   Lift Capacities at 9 ft 10 in (3.0m) radius                                                                     Over Front, Blade Down +6.6 ft (2.0 m)                                                1,163 lb (528 kg) Ground Level                                                   1,731 lb (785 kg) -3.3 ft (1.0 m)                                                 1,599 lb (725 kg)

9 ft 5 in (2,875 mm) 10 ft 5 in (3,190 mm) 15 ft 6 in (4,720 mm) 7 ft 2 in (2,190 mm) 9 ft 5 in (2,868 mm) 7 ft 11 in (2,411 mm) 4 ft 9 in (1,450 mm) 8 ft 0 in (2,445 mm) 14 ft 8 in (4,460 mm) 11.7 in (300 mm) 11.8 in (300 mm) 80°/60° 4 ft 11 in (1,495 mm) 4 ft 3 in (1,285 mm)     Over Side  1163 lb (528 kg)  1169 lb (530 kg)  1161 lb (527 kg)

FEATURES

ENGINE

• EPA Tier 4 compliant
• Automatic fuel-bleed system
• Extended life coolant
• Dual element air cleaners
• Automatic idle

ELECTRICAL

• Electronic monitoring system that includes visual and audible alarms for low oil pressure, high engine coolant temperature, air cleaner restriction, and battery charge level
• 12 volt system with 40 amp alternator
• Work lights; boom and side cover
• Engine preheat
• Hour meter
• Horn

UNDERCARRIAGE and FRAME

• Triple flange track rollers
• Sloped frame with open centers
• 2 Speed travel with automatic shift
• Heavy duty dozer blade with float
• Cast iron wrap around protective counterweight
• 11.8" Rubber or steel tracks
• Available power angle blade, angles 25° right and left

HYDRAULIC

• Cushioned boom and arm cylinders
• Precise and responsive pilot controls
• Primary auxiliary ciricuit plumbed to arm with 1 - way and 2 - way operation
• Accumulator
• Hydraulic oil cooler and sight gauge
• Auxiliary detent

WORKING EQUIPMENT

• Main boom cylinder guard
• Long arm with integrated thumb mount
• Available dual pin position bucket
• Available mechanical bucket quick couplet
• Available main pin hydraulic thumb

OPERATOR'S STATION

• ROPS / TOPS / FOPS Four post canopy
• Tilt-up operator station
• Six way adjustable suspension seat with adjustable arm rests
• Quick change control pattern (ISO or SAE)
• Proportional slide switch for auxiliary hydraulics
• 2" Seat belt
• Available 3" Seat belt