Specs, Service, and Problems of Skid Steers and Track Loaders

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Compact Track Loaders / Bobcat Compact Track Loaders / Bobcat T770

Bobcat T770 Track Loader Specifications

The Bobcat T770 compact track loader driveline system components: a 230 cu.in (3.8L) Kubota V3800-DI-TE3 4-cylinder turbocharged liquid-cooled diesel engine with a rated power of 88.1 hp (65.6 kW), and one-speed or two-speed hydrostatic transmission. The hydraulic system has a pump with a rated capacity of 23 gal/min (87.1 l/min). The system pressure is 3550 psi (245 bar). The Bobcat T770 is equipped with hydraulic disc brakes and rubber tracks with steel inserts. The compact track loader has a lift height of 132" (3350 mm) to hinge pin and dump height of 104.3" (2650 mm). The rated operating capacity is 3135 lbs (1420 kg), and tipping load is 8960 lbs (4065 kg).

Engine Specs

Engine Model ...................... Kubota V3800-DI-TE3
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) ...................... 88.1 (65.6)
Rated Engine Speed, rpm ...................... 2400
Maximum Torque, Nm (lb-ft) ...................... 310.3 (228.8)
Torque Speed, rpm ...................... 1600
Idle Speed, rpm ...................... 1250-2650
Compression Ratio ...................... 19:1
Firing Order ...................... 1-3-4-2
Fuel System ...................... Direct injection
Lubricating System ...................... Pressure lubrication by gear pump
Fuel Tank Capacity, gal (L) ...................... 44.0 (167.0)
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, rubber track drive
Transmission ...................... Tandem piston pumps and reversing motors
Number of Gears (Std) ...................... Single
Number of Gears (Opt) ...................... Two (low/high)
Brakes Type ...................... Independent wet disc
Drive Motor Oil Capacity, qts (L) ...................... 0.19 (0.18)
Maximum Speed (Std), mph (kph) ...................... 6.6 (10.6)
Maximum Speed (Opt), mph (kph) ...................... 10.6 (17.2)

Undercarriage

Tracks Type ...................... Rubber with steel inserts
Tracks Tension ...................... Grease cylinder and spring
Track Width, in (mm) ...................... 17.7 (450)
Ground Pressure (Roller Undercarriage), Bar (psi) ...................... 0.30 (4.3)
Ground Pressure (Solid-Mounted Undercarriage), Bar (psi) ...................... 0.29 (4.2)

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 (138.3)
System Pressure, Bar (psi) ...................... 238-245 (3450-3550)
Hydraulic Reservoir Capacity, qts (L) ...................... 10.4 (9.8)
Hydraulic System Capacity, gal (L) ...................... 9.5 (36.0)
Number of Valves ...................... 3

Loader Performance

Rated Operating Capacity (Roller Undercarriage), lbs (kg) ...................... 3135 (1420)
Rated Operating Capacity (Solid-Mounted Undercarriage), lbs (kg) ...................... 3550 (1610)
Tipping Load (Roller Undercarriage), lbs (kg) ...................... 8960 (4065)
Tipping Load (Solid-Mounted Undercarriage), lbs (kg) ...................... 10145 (4600)
Boom Lifting Force (Roller Undercarriage), lbs (kg) ...................... 6015 (2730)
Boom Lifting Force (Solid-Mounted Undercarriage), lbs (kg) ...................... 5660 (2565)
Bucket Breakout Force (Roller Undercarriage), lbs (kg) ...................... 6550 (2970)
Bucket Breakout Force (Solid-Mounted Undercarriage), lbs (kg) ...................... 6345 (2880)

Dimensions and Weight

Length (w/o Bucket), in (mm) ...................... 114.3 (2900)
Length (Bucket On Ground), in (mm) ...................... 141.6 (3595)
Length (Ground Contact), in (mm) ...................... 63.7 (1620)
Width (w/o Bucket), in (mm) ...................... 78 (1980)
Operating Height, in (mm) ...................... 166.5 (4230)
Height (Operator Cab), in (mm) ...................... 81.3 (2065)
Height to Hinge Pin (Fully Raised), in (mm) ...................... 132 (3350)
Dump Angle At Max Height, deg ...................... 42
Dump Height (Fully Raised), in (mm) ...................... 104.3 (2650)
Dump Reach At Max Height, in (mm) ...................... 33.6 (855)
Rollback Angle At Ground Level, deg ...................... 31
Rollback Angle At Max Height, deg ...................... 98
Departure Angle, deg ...................... 29
Bucket Width, in (mm) ...................... 80 (2030)
Ground Clearance, in (mm) ...................... 7.9 (200)
Turning Radius (w/Bucket), in (mm) ...................... 88 (2235)
Operating Weight (Roller Undercarriage), lbs (kg) ...................... 10425 (4730)
Operating Weight (Solid-Mounted Undercarriage), lbs (kg) ...................... 10280 (4665)

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BOBCAT SKID STEER AND COMPACT TRACK LOADERS

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