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

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Skid Steer Loaders / Bobcat Skid Steer Loaders / Bobcat S740

Bobcat S740 Skid Steer Specifications

The Bobcat S740 skid steer loader driveline system components: a 208.1 cu.in (3.4L) Bobcat Doosan D34 four-cylinder turbocharged diesel engine with a rated power of 74 hp (55 kW), and 1-speed or 2-speed hydro transmission. The hydraulic system has a pump with a rated capacity of 23 gal/min (87.1 l/min). The system relief pressure is 3500 psi (241 bar). The Bobcat S740 is equipped with a vertical-lift loader boom, 120 HSOC roller chains, and 12x16.5 tires. The skid steer loader has a maximum lift height of 132" (3355 mm) to hinge pin and dump height of 104.3" (2650 mm). The rated operating capacity is 3100 lbs (1405 kg), and tipping load is 6200 lbs (2810 kg).

Engine Specs

Engine Model ...................... Bobcat Doosan D34
Engine Type ...................... Vertical in-line four-cylinder direct injection liquid-cooled diesel
Number of Cylinders ...................... 4
Displacement, cu.in (L) ...................... 208.1 (3.41)
Cylinder Bore, in (mm) ...................... 3.86 (98.0)
Piston Stroke, in (mm) ...................... 4.45 (113.0)
Aspiration ...................... Turbocharged
Rated Engine Power, hp (kW) ...................... 74.0 (55.0)
Rated Engine Speed, rpm ...................... 2400
Low Idle Speed, rpm ...................... 1050
High Idle Speed, rpm ...................... 2500
Maximum Torque, Nm (lb-ft) ...................... 329 (243)
Torque Speed, rpm ...................... 1400
Compression Ratio ...................... 17:1
Firing Order ...................... 1-3-4-2
Fuel System ...................... High-pressure common rail
Fuel Filter Type ...................... Full flow, cartridge
Lubricating System ...................... Pressure lubrication by gear pump
Oil Filter Type ...................... Full flow, cartridge
Engine Control ...................... Full electronic engine management
Fuel Tank Capacity, gal (L) ...................... 23.9 (90.5)
Oil Capacity, qts (L) ...................... 13.3 (12.6)
Coolant Capacity, qts (L) ...................... 14.5 (13.7)
Electrical System Rating, Volts ...................... 12
Charging System ...................... Alternator
Alternator Rating, Amps ...................... 120

Drive Train

Drive System Type ...................... Hydrostatic transmission, 4-wheel drive
Number of Gears (Std) ...................... Single
Number of Gears (Opt) ...................... 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) ...................... 44.3 (41.8)
Travel Speed (Single), mph (km/h) ...................... 7.1 (11.4)
Travel Speed (Low Range), mph (km/h) ...................... 7.1 (11.4)
Travel Speed (High Range), mph (km/h) ...................... 12.3 (19.8)

Hydraulic System

Hydraulic System Type ...................... Open center
Hydraulic Pump Type ...................... Gear
Pump Capacity (Standard), gpm (Lpm) ...................... 23.0 (87.1)
Pump Capacity (High Flow), gpm (Lpm) ...................... 30.5 (115.5)
System Pressure, Bar (psi) ...................... 241 (3500)
Number of Valves ...................... 3
Hydraulic Cylinders ...................... Double-acting
Hydraulic Reservoir Capacity, gal (L) ...................... 2.5 (9.5)
Hydraulic System Capacity, gal (L) ...................... 9.5 (36.0)

Loader Performance

Rated Operating Capacity, lbs (kg) ...................... 3100 (1405)
Tipping Load, lbs (kg) ...................... 6200 (2810)
Boom Lifting Force, lbs (kg) ...................... 6508 (2960)
Bucket Breakout Force, lbs (kg) ...................... 6171 (2805)
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) ...................... 72.1 (1830)
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) ...................... 8150 (3700)
Operating Weight, lbs (kg) ...................... 8795 (3990)

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