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Case 321D Specifications

The Case 321D wheel loader is powered by Perkins 1004-42 4-cylinder diesel engine with a rated power of 71 hp (52 kW) or Deutz BF4M2011 4-cylinder diesel engine with a rated power of 75 hp (56 kW). The Case 321D is equipped with a hydrostatic transmission, power steering, hydraulic wet disc brakes, and 405/70R20 tires. The hydraulic system has a pump with fluid flow rate of 19 gpm (72 lpm). The hydraulic pressure is 3335 psi (230 bar). The wheel loader has a rated operating capacity of 3865 lbs (1755 kg) and tipping load of 7730 lbs (3505 kg). The max lift height is 131.7 inches (3345 mm) to hinge pin, and breakout force is 15920 lbs (7220 kg).

Engine Model .................... Perkins 1004-42
Engine Type .................... 4-Stroke four-cylinder liquid-cooled diesel
Number of Cylinders .................... 4
Cylinder Arrangement .................... In-line
Cylinder Bore, in (mm) .................... 4.06 (103.0)
Piston Stroke, in (mm) .................... 5.00 (127.0)
Displacement, cu.in (L) .................... 258 (4.23)
Aspiration Type .................... Naturally aspirated
Rated Engine Power, hp (kW) .................... 71.0 (52.0)
Rated Engine Speed, rpm .................... 2200
Idling Speed, rpm .................... 1020-2280
Maximum Torque, Nm (ft-lbs) .................... 273 (202)
Torque Speed, rpm .................... 1400
Direction of Rotation .................... Clockwise from the front
Compression Ratio .................... 18.5:1
Firing Order .................... 1-3-4-2
Fuel System .................... Direct injection
Injection Pump Type .................... Rotary
Injection Pump Model .................... Bosch
Lift Pump Type .................... Diaphragm
Governor Type .................... Mechanical
Lubrication System .................... Gear pump
Oil Filter Type .................... Spin-on full flow
Cooling System .................... Centrifugal pump pressurised radiator
Air Cleaner Type .................... 2-stage, dry element
Valve Clearance (Intake), in (mm) .................... 0.008 (0.20)
Valve Clearance (Exhaust), in (mm) .................... 0.018 (0.45)
Fuel Tank Capacity, gal (L) .................... 26.4 (100.0)
Oil Capacity, qts (L) .................... 7.9 (7.5)
Coolant Capacity, qts (L) .................... 13.7 (13.0)
Electrical System Rating, Volts .................... 12
Charging System .................... Alternator
Alternator Rating, Amps .................... 65

Engine Model .................... Deutz BF4M2011
Engine Type .................... Vertical 4-cylinder liquid-cooled diesel
Number of Cylinders .................... Four
Displacement, cu.in (L) .................... 190 (3.11)
Cylinder Bore, in (mm) .................... 3.70 (94.0)
Piston Stroke, in (mm) .................... 4.41 (112.0)
Aspiration Type .................... Turbocharged
Rated Engine Power, hp (kW) .................... 75.0 (56.0)
Rated Engine Speed, rpm .................... 2300
Compression Ratio .................... 17.8:1
Firing Order .................... 1-3-4-2
Fuel System .................... Direct injection
Injection Nozzle Type .................... Five-hole
Fuel Filter Type .................... Replaceable cartridge
Governor Type .................... Mechanical centrifugal
Air Cleaner Type .................... Dry element
Lubrication System .................... Pressure lubrication with filter
Cooling System .................... Liquid-cooled
Emission Level .................... Tier 2
Valve Clearance (Inlet), in (mm) .................... 0.014 (0.35)
Valve Clearance (Exhaust), in (mm) .................... 0.014 (0.35)
Fuel Tank Capacity, gal (L) .................... 26.4 (100.0)
Oil Capacity, qts (L) .................... 11.5 (10.8)
Electrical System Rating, Volts .................... 12
Charging System .................... Alternator
Alternator Rating, Amps .................... 55

Transmission Type .................... Hydrostatic, 2-range
Number of Forward Gears .................... Infinite
Number of Reverse Gears .................... Infinite
Forward Speed (Low), mph (kph) .................... 3.8 (6.0)
Forward Speed (High), mph (kph) .................... 12.4 (20.0)
Reverse Speed (Low), mph (kph) .................... 3.8 (6.0)
Reverse Speed (High), mph (kph) .................... 12.4 (20.0)

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) .................... 405/70R20
Rear Tire Size (Std) .................... 405/70R20
Front Tire Size (Opt) .................... 14.5x20
Rear Tire Size (Opt) .................... 14.5x20
Front Tire Size (Opt) .................... 405/75R20
Rear Tire Size (Opt) .................... 405/75R20

Hydraulic System Type .................... Open center
Hydraulic Pump Type .................... Gear
Pump Capacity, gpm (Lpm) .................... 19.0 (72.0)
System Pressure, psi (Bar) .................... 3335 (230)
Hydraulic Reservoir Capacity, gal (L) .................... 10.5 (40.0)
Hydraulic System Capacity, gal (L) .................... 18.5 (70.0)

Rated Operating Capacity (Straight), lbs (kg) .................... 4750 (2155)
Rated Operating Capacity (Full Turn), lbs (kg) .................... 3865 (1755)
Tipping Load (Straight), lbs (kg) .................... 9495 (4310)
Tipping Load (Full Turn), lbs (kg) .................... 7730 (3505)
Lift Capacity, lbs (kg) .................... 7400 (3355)
Breakout Force, lbs (kg) .................... 15920 (7220)

Maximum Operating Height .................... 167.5 (4255)
Maximum Lift Height To Hinge Pin, in (mm) .................... 131.7 (3345)
Height To Top Of Cab, in (mm) .................... 109.7 (2785)
Length With Bucket On Ground, in (mm) .................... 217.8 (5530)
Width (Tread Center), in (mm) .................... 60 (1525)
Width (Over Tires), in (mm) .................... 77.9 (1980)
Wheel Base, in (mm) .................... 92.5 (2350)
Ground Clearance, in (mm) .................... 14.1 (360)
Departure Angle, deg .................... 35
Articulation Angle, deg .................... 41
Bucket Width, in (mm) .................... 82 (2080)
Bucket Capacity, cu.ft (m3) .................... 38.8 (1.10)
Digging Depth, in (mm) .................... 3.5 (88)
Rollback Angle At Ground, deg .................... 48
Rollback Angle At Full Height, deg .................... 59
Dump Angle At Full Height, deg .................... 42
Clearance With Bucket Dumped, in (mm) .................... 104.7 (2660)
Reach At Full Height, in (mm) .................... 35 (890)
Turning Radius (w/Bucket), in (mm) .................... 162.7 (4130)
Operating Weight, lbs (kg) .................... 12900 (5850)

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