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C O N S T R U C T I O N E Q U I P M E N T D I V I S I O N
S P E C I F I C A T I O N S
T R U C K S
JD
300C
Engine
300C
Type...................................................................................................DaimlerChrysler OM442
Conguration .....................................................................................V8, exhaust brake
Aspiration ..........................................................................................naturally aspirated
Cooling system ..................................................................................liquid cooled, with a crankshaft-driven viscous fan
Rated power (conforms to SAE J1349) ..............................................251 SAE net hp (187 kW) / 261 SAE gross hp (195 kW) @ 2,100 rpm
Maximum net torque..........................................................................723 lb.-ft. (980 Nm) @ 1,300 rpm
Displacement.....................................................................................920 cu. in. (15.1 L)
Transmission
Conguration .....................................................................................ZF 6WG 210 countershaft design with integral drop box, constantly meshing gears, hydraulically actuated multiple-
disc clutch, electronic control, hydrodynamic torque converter with lock-up, built-in PTO drive
Output torque split .............................................................................33 front / 67 rear
Stall torque ratio ................................................................................1.771 to 1
Vehicle speeds (full load, 2% rolling resistance)
Forward
Reverse
Gear 1.........................................................................................3 mph (5 km/h)
3 mph (5 km/h)
Gear 2.........................................................................................5 mph (8 km/h)
5 mph (8 km/h)
Gear 3.........................................................................................8 mph (13 km/h)
8 mph (13 km/h)
Gear 4.........................................................................................12 mph (20 km/h)
Gear 5.........................................................................................19 mph (31 km/h)
Gear 6.........................................................................................29 mph (47 km/h)
Axles
Differential type .................................................................................spiral bevel gear with limited slip
Final drive type ..................................................................................outboard heavy-duty planetary reduction hub
Braking System
Service brake.....................................................................................dual-circuit, fully hydraulic-applied dry-disc brakes on all six wheels
Park and secondary ...........................................................................spring-applied, air-released, automatic slack-adjusting mechanical caliper, driveline-mounted, dry disc
Auxiliary brake...................................................................................automatic exhaust brake actuation, supplemented with foot-operated hydraulic valve retarder
Maximum retardation ..................................................................271 hp (202 kW)
Pneumatic System
Type...................................................................................................air drier with heater and integral unloader valve, servicing the park brake and auxiliary functions
System pressure................................................................................117 psi (810 kPa)
Electrical System
Voltage ..............................................................................................24 volt
Battery type .......................................................................................maintenance free
Battery capacity.................................................................................2 x 100 A.h.
Alternator rating.................................................................................28 volt, 55 amp
Steering System
Type...................................................................................................hydromechanically articulated with two double-acting hydraulic cylinders
Angle .................................................................................................40 degrees side to side
Lock-to-lock turns .............................................................................4
Hydraulic System
Type...................................................................................................closed-center, load-sensing system
Main pump ........................................................................................axial piston, variable displacement
Application ..................................................................................steering, body-tipping, and hydraulic brake charging
Flow............................................................................................41 gpm (156 L/min.) @ governed engine speed
Pressure......................................................................................3770 psi (26 000 kPa)
Secondary pump................................................................................axial piston, variable displacement, ground driven
Application ..................................................................................secondary steering, assist main steering
Flow............................................................................................22.0 gpm (85 L/min.) @ full ground speed
Tires/Wheels
Type...................................................................................................radial earthmover
Size ...................................................................................................23.5R25
Maximum ground pressure (loaded)...................................................23 psi (157 kPa) middle
Body
Capacity
Struck .........................................................................................17 cu. yd. (13.0 m
3
)
Heaped .......................................................................................22 cu. yd. (16.2 m
3
) @ 2 to 1 SAE ratio
Rated payload....................................................................................59,524 lb. (27 000 kg)
Power-down time ..............................................................................7 sec.
Raise time .........................................................................................14 sec.
Tipping angle .....................................................................................65 degrees
6 Service Capacities
300C
Fuel tank ...........................................................................................71 gal. (269 L)
Axle oil (front) .......................................................................10.5 gal. (40 L)
Engine oil...........................................................................................8 gal. (30 L)
Axle oil (middle) ....................................................................10.5 gal. (40 L)
Engine coolant ...................................................................................10 gal. (38 L)
Axle oil (rear) ........................................................................10.5 gal. (40 L)
Transmission uid (rell) ....................................................................4.2 gal. (16 L)
Final drive oil ........................................................................ 0.5 gal. (2 L)
Hydraulic reservoir.............................................................................21 gal. (80 L)
Operating Weights
Empty
Loaded
Front ...........................................................................................20,150 lb. (9140 kg)
Front ..............................................................................32,165 lb. (14 590 kg)
Middle.........................................................................................11,442 lb. (5190 kg)
Middle............................................................................35,197 lb. (15 965 kg)
Rear ............................................................................................11,001 lb. (4990 kg)
Rear ...............................................................................34,756 lb. (15 765 kg)
Total ............................................................................................42,593 lb. (19 320 kg)
Total...............................................................................102,118 lb. (46 320 kg)
SAE Turning Radius Dimensions
Inside turning circle radius.................................................................17 ft. 5 in. (5313 mm)
Outside turning circle radius .................................................29 ft. 10 in. (9092 mm)
D
30°
20 in. (511 mm)
13 ft. 6 in. (4119 mm)
30 ft. 3 in. (9213 mm)
25 in.
(640 mm)
9 ft.
2 in.
(2798 mm)
19 ft.
11 in.
(6079 mm)
4 ft. 1 in.
(1244 mm)
5 ft. 6 in.
(1670 mm)
7 ft. 2 in. (2180 mm)
6 ft.
7 in.
(2010 mm)
65°
11 ft.
2 in.
(3414 mm)
11 ft.
3 in.
(3423 mm)

9 ft. 8 in. (2949 mm)
7 ft. 8 in. (2348 mm)
11 ft.
(3363 mm)
10 ft. 4 in. (3143 mm)
outside of body
10 ft. 9 in. (3283