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  Wheel Loaders

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Case 621C Specifications

The Case 621C wheel loader is powered by 359 cu.in (5.9L) Case 6T-590 6-cylinder direct injection turbocharged liquid-cooled diesel engine with a rated power of 130 hp (97 kW) at 2200 rpm. The Case 621C is equipped with a 4x3 powershift transmission, power steering system, hydraulic wet disc brakes, and 20.5x25 or 555/70R25 tires. The open center hydraulic system has a pump with fluid flow rate of 42.9 gpm (163 lpm). The wheel loader has a rated operating capacity of 8726 lbs (3958 kg) and tipping load of 17450 lbs (7915 kg). The maximum lift height is 145.5" (3695 mm) to hinge pin, and bucket breakout force is 28680 lbs (13010 kg).

Engine Model .................... Case 6T-590
Engine Type .................... 4-Stroke direct injection liquid-cooled diesel
Number of Cylinders .................... 6
Displacement, cu in (L) .................... 359 (5.90)
Engine Bore, in (mm) .................... 4.02 (102.0)
Engine Stroke, in (mm) .................... 4.72 (120.0)
Aspiration Type .................... Turbocharged
Rated Engine Power, hp (kW) .................... 130.0 (97.0)
Rated Engine Speed, rpm .................... 2200
Low Idle Speed, rpm .................... 725-775
High Idle Speed, rpm .................... 2300-2385
Maximum Torque, Nm (ft-lb) .................... 560 (413)
Torque Speed, rpm.................... 1400
Compression Ratio .................... 17.5:1
Firing Order .................... 1-5-3-6-2-4
Fuel System .................... Injection pump
Fuel Filter Type .................... Full flow spin-on cartridge
Governor Type .................... Mechanical
Lubricating System .................... Positive pressure
Cooling System .................... Liquid-cooled
Air Cleaner Type .................... Dry element
Fuel Tank Capacity, gal (L) .................... 51.0 (193.0)
Oil Capacity, qts (L) .................... 16.0 (15.1)
Coolant Capacity, qts (L) .................... 27.8 (26.5)
Electrical System Rating, Volts .................... 12
Charging System .................... Alternator
Alternator Rating, Amps .................... 65

Transmission Type .................... Powershift
Gearbox Type .................... 4F/3R
Number of Forward Gears .................... 4
Number of Reverse Gears .................... 3
Torque Converter Type .................... Single stage
Torque Converter Ratio .................... 2.83:1
Oil Capacity, gal (L) .................... 5.0 (18.9)
Maximum Forward Speed, mph (kph) .................... 23.3 (37.5)
Maximum Reverse Speed, mph (kph) .................... 15.4 (24.9)

Drive System Type .................... Four-wheel drive (4WD)
Steering Configuration .................... Articulated frame
Steering System .................... Hydrostatic power
Service Brakes Type .................... Hydraulic wet disc
Front Tire Size (Std) .................... 20.5x25
Rear Tire Size (Std) .................... 20.5x25
Front Tire Size (Opt) .................... 17.5x25
Rear Tire Size (Opt) .................... 17.5x25
Front Tire Size (Opt) .................... 555/70R25
Rear Tire Size (Opt) .................... 555/70R25

Hydraulic System Type .................... Open center
Hydraulic Pump Type .................... Dual, vane
Pump Capacity, gpm (Lpm) .................... 42.9 (163.0)
System Pressure, psi (Bar) .................... 2250 (155)
Hydraulic Reservoir Capacity, gal (L) .................... 23.8 (90.1)
Hydraulic System Capacity, gal (L) .................... 40.5 (153.3)

Rated Operating Capacity (Straight), lbs (kg) .................... 10350 (4695)
Rated Operating Capacity (Full Turn), lbs (kg) .................... 8726 (3958)
Tipping Load (Straight), lbs (kg) .................... 20700 (9390)
Tipping Load (Full Turn), lbs (kg) .................... 17450 (7915)
Lift Capacity, lbs (kg) .................... 12400 (5625)
Breakout Force, lbs (kg) .................... 28680 (13010)

Maximum Operating Height .................... 192 (4880)
Maximum Lift Height To Hinge Pin, in (mm) .................... 145.5 (3695)
Height To Top Of Cab, in (mm) .................... 128.3 (3260)
Length With Bucket On Ground, in (mm) .................... 266.7 (6770)
Width (Tread Center), in (mm) .................... 74 (1880)
Width (Over Tires), in (mm) .................... 95.8 (2425)
Wheel Base, in (mm) .................... 114.2 (2900)
Ground Clearance, in (mm) .................... 16.7 (425)
Departure Angle, deg .................... 34
Articulation Angle, deg .................... 40
Bucket Width, in (mm) .................... 100 (2540)
Bucket Capacity, cu.ft (m3) .................... 60.7 (1.72)
Digging Depth, in (mm) .................... 2.3 (59)
Rollback Angle At Ground, deg .................... 39
Rollback Angle At Full Height, deg .................... 63
Dump Angle At Full Height, deg .................... 50
Clearance With Bucket Dumped, in (mm) .................... 114.5 (2910)
Reach At Full Height, in (mm) .................... 37.7 (960)
Turning Radius (w/Bucket), in (mm) .................... 204.5 (5190)
Operating Weight, lbs (kg) .................... 26720 lb (12120)

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Wheel Loaders, Skid Steers, and Compact Track Loaders