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

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Skid Steer Loaders / Bobcat Skid Steer Loaders / Bobcat S650

Bobcat S650 Skid Steer Specifications

The Bobcat S650 skid steer loader driveline system components: a 203.2 cu.in (3.3L) Kubota V3307-DI-TE3 4-cylinder turbocharged liquid-cooled diesel engine with a rated power of 70.3 hp (52.4 kW), and 1-speed or 2-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 S650 is equipped with hydraulic wet disc brakes and 12x16.5-12 tires. The skid steer loader has a max lift height of 124" (3150 mm) to hinge pin and dump height of 96.3" (2445 mm). The rated operating capacity is 2690 lbs (1220 kg), and tipping load is 5380 lbs (2440 kg).

Engine Specs

Engine Model ...................... Kubota V3307-DI-TE3
Engine Type ...................... Vertical liquid-cooled 4-cylinder diesel
Number of Cylinders ...................... Four
Displacement, cu.in (L) ...................... 203.2 (3.3)
Cylinder Bore, in (mm) ...................... 3.70 (94.0)
Piston Stroke, in (mm) ...................... 4.72 (120.0)
Aspiration ...................... Turbocharged
Rated Engine Power, hp (kW) ...................... 70.3 (52.4)
Rated Engine Speed, rpm ...................... 2400
Maximum Torque, Nm (lb-ft) ...................... 253 (186.5)
Torque Speed, rpm ...................... 1600
Idle Speed, rpm ...................... 1250-2650
Compression Ratio ...................... 20:1
Firing Order ...................... 1-3-4-2
Fuel System ...................... Direct injection
Lubricating System ...................... Pressure lubrication by gear pump
Fuel Tank Capacity, gal (L) ...................... 27.2 (103.1)
Oil Capacity, qts (L) ...................... 12.0 (11.4)
Coolant Capacity, qts (L) ...................... 12.4 (11.7)
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 (Std) ...................... Single
Number of Gears (Opt) ...................... Two (low/high)
Chain Drive Type ...................... 120 HSOC continuous roller chain
Brakes Type ...................... Independent wet disc
Tire Size (Std) ...................... 12x16.5-12
Tire Size (Opt) ...................... 33x15.5-12
Chaincase Capacity, qts (L) ...................... 41.5 (39.2)
Maximum Speed (Std), mph (kph) ...................... 7.1 (11.4)
Maximum Speed (Opt), mph (kph) ...................... 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) ...................... 30.5 (115.5)
System Pressure, Bar (psi) ...................... 238-245 (3450-3550)
Hydraulic Reservoir Capacity, qts (L) ...................... 10.8 (10.2)
Hydraulic System Capacity, gal (L) ...................... 11.9 (45.0)
Number of Valves ...................... 3

Loader Performance

Rated Operating Capacity, lbs (kg) ...................... 2690 (1220)
Tipping Load, lbs (kg) ...................... 5380 (2440)
Boom Lifting Force, lbs (kg) ...................... 4800 (2175)
Bucket Breakout Force, lbs (kg) ...................... 5100 (2315)

Dimensions and Weight

Wheelbase, in (mm) ...................... 45.3 (1150)
Height (Operator Cab), in (mm) ...................... 81.3 (2065)
Height (Boom Raised), in (mm) ...................... 158.5 (4025)
Length (w/o Bucket), in (mm) ...................... 108.4 (2755)
Length (Bucket On Ground), in (mm) ...................... 136.8 (3475)
Width (w/o Bucket), in (mm) ...................... 72.1 (1830)
Height to Hinge Pin (Fully Raised), in (mm) ...................... 124 (3150)
Dump Angle At Max Height, deg ...................... 42
Dump Height (Fully Raised), in (mm) ...................... 96.3 (2445)
Dump Reach At Max Height, in (mm) ...................... 31.5 (800)
Rollback Angle At Ground Level, deg ...................... 31
Rollback Angle At Max Height, deg ...................... 97
Departure Angle, deg ...................... 25
Bucket Width, in (mm) ...................... 74 (1880)
Ground Clearance, in (mm) ...................... 8.1 (205)
Turning Radius (w/Bucket), in (mm) ...................... 82.9 (2105)
Operating Weight, lbs (kg) ...................... 8325 (3775)

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