Caterpillar 259B3 Track Loader Specifications

The Caterpillar 259B3 compact track loader driveline system components: a 207.5 cu.in (3.4L) Cat C3.4 DIT 4-cylinder turbo diesel engine with a rated power of 71 hp (53 kW), and 2-speed hydro transmission. The hydraulic system has a pump with a rated flow of 22 gpm (83 lpm) or 31 gpm (117 lpm). The system pressure is 3335 psi (230 bar). The Cat 259B3 is equipped with a vertical-lift loader boom, fully suspension undercarriage, and 12.6" (320 mm) or 15.7" (400 mm) rubber tracks. The loader has a max lift height of 120" (3.05 m) to hinge pin and dump height of 88.3" (2.25 m). The rated operating capacity is 2065 lbs (937 kg), and tipping load is 5900 lbs (2676 kg).

Engine Specs

Engine Model .................... Caterpillar C3.4 DIT
Engine Type .................... 4-cycle liquid cooled diesel
Number of Cylinders .................... 4, in-line
Displacement, cu.in (L) .................... 207.5 (3.40)
Cylinder Bore, in (mm) .................... 3.70 (94.0)
Piston Stroke, in (mm) .................... 4.72 (120.0)
Aspiration .................... Turbocharged
Rated Engine Power, hp (kW) .................... 71.0 (53.0)
Maximum Engine Power, hp (kW) .................... 74.0 (55.0)
Rated Engine Speed, rpm .................... 2500
Compression Ratio .................... 22:1
Firing Order .................... 1-3-4-2
Fuel System .................... Direct Injection
Air Cleaner .................... Dual element, radial seal
Emission Level .................... Tier 4 Interim
Fuel Tank Capacity, gal (L) .................... 22.2 (84.0)
Oil Capacity, qts (L) .................... 9.5 (9.0)
Coolant Capacity, qts (L) .................... 10.6 (10.0)
Electrical System Rating, Volts .................... 12
Charging System .................... Alternator
Alternator Rating, Amps .................... 90

Drive Train

Drive System Type .................... Hydrostatic direct drive
Number of Gears .................... 2 (low-high)
Pump Type .................... Axial-piston
Brakes Type .................... Hydraulic wet disc
Forward Speed (Low), mph (kph) .................... 5.9 (9.5)
Forward Speed (High), mph (kph) .................... 8.5 (13.6)
Reverse Speed (Low), mph (kph) .................... 5.9 (9.5)
Reverse Speed (High), mph (kph) .................... 8.5 (13.6)

Undercarriage

Tracks Type .................... Steel embedded rubber track
Track Width (Std), in (mm) .................... 12.6 (320)
Track Width (Opt), in (mm) .................... 15.7 (400)
Ground Pressure (Std Track), psi (Bar) .................... 6.0 (0.412)
Ground Pressure (Opt Track), psi (Bar) .................... 5.0 (0.345)
Ground Contact Area (Std Track), in2 (m2) .................... 1490 (0.96)
Ground Contact Area (Opt Track), in2 (m2) .................... 1848 (1.19)
Undercarriage Suspension .................... Fully independent torsion axle

Hydraulic System

Hydraulic System Type .................... Open center
Hydraulic Pump Type .................... Gear
Pump Flow (Standard), gpm (Lpm) .................... 22.0 (83.0)
Pump Flow (High Flow), gpm (Lpm) .................... 31.0 (117.0)
System Pressure, Bar (psi) .................... 230 (3335)
Hydraulic Tank Capacity, gal (L) .................... 9.2 (35.0)
Hydraulic System Capacity, gal (L) .................... 14.5 (55.0)
Number of Valves .................... 3

Loader Performance

Rated Operating Capacity (35% tipping load), lbs (kg) .................... 2065 (937)
Rated Operating Capacity (50% tipping load), lbs (kg) .................... 2950 (1338)
Tipping Load, lbs (kg) .................... 5900 (2676)
Bucket Breakout Force, lbs (kg) .................... 4508 (2045)
Loader Boom Type .................... Vertical-lift

Dimensions and Weight

Length (Track On Ground), in (mm) .................... 59 (1500)
Length (w/o Bucket), in (mm) .................... 107 (2720)
Length (Bucket On Ground), in (mm) .................... 135 (3430)
Length of Undercarriage, in (mm) .................... 78.5 (1995)
Height (Operator Cab), in (mm) .................... 78 (1985)
Height (Boom Raised), in (mm) .................... 152.3 (3870)
Width (12.6" Track, w/o Bucket), in (mm) .................... 66 (1675)
Width (15.7" Track, w/o Bucket), in (mm) .................... 69 (1755)
Height to Hinge Pin (Fully Raised), in (mm) .................... 120 (3050)
Height to Hinge Pin (Carry Position), in (mm) .................... 7.6 (195)
Dump Angle At Max Height, deg .................... 52
Dump Height (Fully Raised), in (mm) .................... 88.3 (2245)
Dump Reach At Max Height, in (mm) .................... 29 (740)
Rollback Angle At Max Height, deg .................... 87
Departure Angle, deg .................... 35
Bucket Width, in (mm) .................... 72 (1830)
Ground Clearance, in (mm) .................... 8.7 (220)
Turning Radius (w/Bucket), in (mm) .................... 86 (2180)
Operating Weight (12.6" Track), lbs (kg) .................... 8935 (4050)
Operating Weight (12.6" Track), lbs (kg) .................... 9225 (4185)