Case 521D Wheel Loader

Category: Wheel Loaders ➔
Manufacturer: Case ➔
Model: 521D ➔

General Specifications

Bucket

Breakout Force	20,951 lbs (9,503 kg)
Bucket Capacity - heaped	3 cu yd (2 cu m)
Bucket Capacity - struck	2 cu yd (2 cu m)
Bucket Width	8 ft (2 m)
Dump Clearance at Max Raise	9 ft (3 m)

Dimensions

Ground Clearance	1 ft (0 m)
Height - Top of Cab	11 ft (3 m)
Hinge Pin - Max Height	12 ft (4 m)
Length with Bucket on Ground	22 ft (7 m)
Reach at Max Lift and Dump	4 ft (1 m)
Wheelbase	9 ft (3 m)
Width Over Tires	8 ft (2 m)

Engine

Aspiration	Turbocharged and Aftercooled
Displacement	275 cu in (4,506 cu cm)
Engine Model	Family III 445TA/M2 Tier II certified
Gross Power	119 hp (89 kw)
Net Power	110 hp (82 kw)
Number of Cylinders	4
Power Measured @	2000 rpm
Torque Measured @	1400 rpm
Torque Rise	14%

Hydraulic System

Dump Time	1.1 seconds
Lower Time	3.7 seconds
Pump Flow Capacity	35 gpm (134 lpm)
Pump Type	closed centered pressure/flow compensated
Raise Time	5.6 seconds
Relief Valve Setting	2750 psi

Operating Specifications

Alternator Supplied Amperage	70 amps
Cooling System Fluid Capacity	6 gal (22 l)
Engine Oil Fluid Capacity	3 gal (13 l)
Front Axle/Diff Fluid Capacity	6 gal (22 l)
Fuel Capacity	50 gal (189 l)
Hydraulic System Fluid Capacity	30 gal (114 l)
Operating Voltage	24 volts
Operating Weight	22,109 lbs (10,028 kg)
Rear Axle Oscillation	24 degrees
Rear Axle/Diff Fluid Capacity	6 gal (22 l)
Static Tipping Weight	18,424 lbs (8,357 kg)
Tire Size	17.5x25
Transmission Fluid Capacity	5 gal (19 l)
Turning Radius	16 ft (5 m)

Transmission

Max Speed - Forward	23 mph (38 kph)
Max Speed - Reverse	15 mph (24 kph)
Number of Forward Gears	4
Number of Reverse Gears	3
Transmission Type	4F/3R Proportional w/ Electronic Control Module torque sensing autoshift/manual shift and modulation

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