Bobcat A770 Skid Steer Specifications

The Bobcat A770 skid steer loader driveline system components: a 230 cu.in (3.8L) Kubota V3800 4-cylinder turbocharged diesel engine with a rated power of 92 hp (68.6 kW), and 2-speed transmission. The hydraulic system has a pump with a rated capacity of 23 gal/min (87.1 l/min). The system relief pressure is 3550 psi (245 bar). The Bobcat A770 is equipped with a vertical-lift loader boom, all-wheel steering, 120 HSOC roller chains, and 12x16.5 or 33-15.5x16.5 tires. The skid steer has a boom lifting force of 5365 lbs (2434 kg) and bucket breakout force of 5500 lbs (2495 kg). The rated operating capacity is 3325 lbs (1508 kg), and tipping load is 6650 lbs (3016 kg).

Engine Specs

Engine Model ...................... Kubota V3800-DI-T-E3
Engine Type ...................... Vertical 4-cylinder liquid-cooled diesel
Number of Cylinders ...................... Four
Displacement, cu.in (L) ...................... 230 (3.77)
Cylinder Bore, in (mm) ...................... 3.94 (100.0)
Piston Stroke, in (mm) ...................... 4.72 (120.0)
Aspiration ...................... Turbocharged
Rated Engine Power, hp (kW) ...................... 92.0 (68.6)
Rated Engine Speed, rpm ...................... 2400
Low Idle Speed, rpm ...................... 1250-1400
High Idle Speed, rpm ...................... 2525-2650
Maximum Torque, Nm (lb-ft) ...................... 315 (230)
Torque Speed, rpm ...................... 1600
Compression Ratio ...................... 19:1
Firing Order ...................... 1-3-4-2
Fuel System ...................... Direct injection
Lubricating System ...................... Pressure lubrication by gear pump
Cooling system ...................... Forced circulation with water pump
Air Cleaner Type ...................... Cartridge, dry element
Fuel Tank Capacity, gal (L) ...................... 28.8 (109.0)
Oil Capacity, qts (L) ...................... 12.0 (11.4)
Coolant Capacity, qts (L) ...................... 15.3 (14.4)
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) ...................... 12x16.5
Tire Size (Opt) ...................... 33-15.5x16.5
Chaincase Capacity, qts (L) ...................... 42.3 (39.7)
Forward Speed (Low Range), mph (km/h) ...................... 7.1 (11.4)
Forward Speed (High Range), mph (km/h) ...................... 12.3 (19.8)
Reverse Speed (Low Range), mph (km/h) ...................... 7.1 (11.4)
Reverse Speed (High Range), mph (km/h) ...................... 12.3 (19.8)

Hydraulic System

Hydraulic System Type ...................... Open center
Hydraulic Pump Type ...................... Gear
Pump Flow (Std), gpm (Lpm) ...................... 23.0 (87.1)
Pump Flow (Opt), gpm (Lpm) ...................... 36.5 (138.2)
System Pressure, Bar (psi) ...................... 245 (3550)
Number of Valves ...................... 3
Lift Cylinder Rod Diameter, in (mm) ...................... 1.75 (44.5)
Lift Cylinder Piston Diameter, in (mm) ...................... 3 (76.2)
Lift Cylinder Piston Stroke, in (mm) ...................... 26.2 (665)
Bucket Cylinder Rod Diameter, in (mm) ...................... 1.5 (38.1)
Bucket Cylinder Piston Diameter, in (mm) ...................... 3 (76.2)
Bucket Cylinder Piston Stroke, in (mm) ...................... 14 (355)
Hydraulic Reservoir Capacity, gal (L) ...................... 3.0 (11.4)
Hydraulic System Capacity, gal (L) ...................... 9.5 (36.0)

Loader Performance

Rated Operating Capacity, lbs (kg) ...................... 3325 (1508)
Tipping Load, lbs (kg) ...................... 6650 (3016)
Boom Lifting Force, lbs (kg) ...................... 5365 (2434)
Bucket Breakout Force, lbs (kg) ...................... 5500 (2495)
Loader Boom Type ...................... Vertical-lift

Dimensions and Weight

Wheelbase, in (mm) ...................... 48.3 (1225)
Height (Operator Cab), in (mm) ...................... 81.3 (2065)
Height (Boom Raised), in (mm) ...................... 166.5 (4230)
Length (w/o Bucket), in (mm) ...................... 114.3 (2905)
Length (Bucket On Ground), in (mm) ...................... 141.6 (3595)
Width (w/o Bucket), in (mm) ...................... 74.7 (1895)
Height to Hinge Pin (Fully Raised), in (mm) ...................... 132 (3355)
Dump Angle At Max Height, deg ...................... 42
Dump Height (Fully Raised), in (mm) ...................... 104.3 (2650)
Dump Reach At Max Height, in (mm) ...................... 31.5 (800)
Rollback Angle At Ground Level, deg ...................... 32
Rollback Angle At Max Height, deg ...................... 98
Departure Angle, deg ...................... 25
Bucket Width, in (mm) ...................... 74 (1880)
Ground Clearance, in (mm) ...................... 8.1 (207)
Turning Radius (w/Bucket), in (mm) ...................... 85.8 (2180)
Shipping Weight, lbs (kg) ...................... 8760 (3970)
Operating Weight, lbs (kg) ...................... 9460 (4290)