Bobcat S66 Skid Steer Specifications

The Bobcat S66 skid steer loader driveline system components: a 146.5 cu.in (2.4L) Bobcat Doosan D24 4-cylinder turbocharged diesel engine with a rated power of 74 hp (55.2 kW), and 2-speed hydrostatic transmission. The hydraulic system has a pump with a rated capacity of 17.6 gal/min (66.5 l/min). The system relief pressure is 3500 psi (241 bar). The Bobcat S66 is equipped with a vertical-lift loader boom, 120 HSOC roller chains, and 10x16.5 or 31-12x16.5 tires. The skid steer has a max lift height of 120" (3050 mm) to hinge pin and dump height of 94.3" (2395 mm). The rated operating capacity is 2400 lbs (1090 kg), and tipping load is 4800 lbs (2180 kg).

Engine Specs

Engine Model ...................... Bobcat Doosan D24
Engine Type ...................... Vertical four-cylinder direct injection liquid-cooled diesel
Number of Cylinders ...................... 4
Displacement, cu.in (L) ...................... 146.5 (2.39)
Cylinder Bore, in (mm) ...................... 3.54 (90.0)
Piston Stroke, in (mm) ...................... 3.70 (94.0)
Aspiration ...................... Turbocharged
Rated Engine Power, hp (kW) ...................... 74.0 (55.2)
Rated Engine Speed, rpm ...................... 2600
Maximum Torque, Nm (lb-ft) ...................... 280 (207)
Torque Speed, rpm ...................... 1800
Compression Ratio ...................... 17:1
Firing Order ...................... 1-3-4-2
Fuel System ...................... High-pressure common rail
Injection Pump ...................... Delphi DFP 4.4
Fuel Filter Type ...................... Full flow, cartridge
Lubricating System ...................... Pressure lubrication by gear pump
Oil Filter Type ...................... Full flow, cartridge
Fuel Tank Capacity, gal (L) ...................... 28.3 (107.1)
Oil Capacity, qts (L) ...................... 9.7 (9.2)
Coolant Capacity, qts (L) ...................... 12.0 (11.3)
Electrical System Rating, Volts ...................... 12
Charging System ...................... Alternator
Alternator Rating, Amps ...................... 90

Drive Train

Drive System Type ...................... Fully hydrostatic, 4-wheel drive
Number of Gears ...................... Two (low-high)
Drive Pump Type ...................... Tandem, hydrostatic piston
Chain Drive Type ...................... 120 HSOC continuous roller chain
Brakes Type ...................... Independent wet disc
Tire Size (Std) ...................... 31-12x16.5
Tire Size (Opt) ...................... 10x16.5
Chaincase Capacity, qts (L) ...................... 40.3 (38.0)
Forward Speed (Low Range), mph (km/h) ...................... 7.4 (11.8)
Forward Speed (High Range), mph (km/h) ...................... 11.0 (17.7)
Reverse Speed (Low Range), mph (km/h) ...................... 7.4 (11.8)
Reverse Speed (High Range), mph (km/h) ...................... 11.0 (17.7)

Hydraulic System

Hydraulic System Type ...................... Open center
Hydraulic Pump Type ...................... Gear
Pump Capacity (Standard), gpm (Lpm) ...................... 17.6 (66.5)
Pump Capacity (High Flow), gpm (Lpm) ...................... 26.9 (101.8)
System Pressure, psi (Bar) ...................... 3500 (241)
Hydraulic Reservoir Capacity, gal (L) ...................... 5.0 (18.9)
Hydraulic System Capacity, gal (L) ...................... 13.5 (51.1)
Number of Valves ...................... 3

Loader Performance

Rated Operating Capacity, lbs (kg) ...................... 2400 (1090)
Tipping Load, lbs (kg) ...................... 4800 (2180)
Boom Lifting Force, lbs (kg) ...................... 5378 (2440)
Bucket Breakout Force, lbs (kg) ...................... 4730 (2145)
Loader Boom Type ...................... Vertical-lift

Dimensions and Weight

Wheelbase, in (mm) ...................... 44.6 (1135)
Height (Operator Cab), in (mm) ...................... 80.5 (2045)
Height (Boom Raised), in (mm) ...................... 153.9 (3910)
Length (w/o Bucket), in (mm) ...................... 107 (2720)
Length (Bucket On Ground), in (mm) ...................... 134.9 (3425)
Width (w/o Bucket), in (mm) ...................... 64.6 (1640)
Height to Hinge Pin (Fully Raised), in (mm) ...................... 120 (3050)
Dump Angle At Max Height, deg ...................... 37
Dump Height (Fully Raised), in (mm) ...................... 94.3 (2395)
Dump Reach At Max Height, in (mm) ...................... 34.2 (870)
Rollback Angle At Ground Level, deg ...................... 31
Departure Angle, deg ...................... 25
Bucket Width, in (mm) ...................... 68 (1725)
Ground Clearance, in (mm) ...................... 7.5 (190)
Turning Radius (w/Bucket), in (mm) ...................... 80.1 (2030)
Shipping Weight, lbs (kg) ...................... 6445 (2930)
Operating Weight, lbs (kg) ...................... 7155 (3245)