Évaluations - 5, GPA: 4.6
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Facilité d'utilisation
(7.08 m) Machine Width ..........................................................9 ft 6 in. (2.89 m) ENGINE......................................................................John Deere 300 Series Number of Cylinders and Displacement..............................4 cylinders, 276 cu in. (4.5 L) Air Intake System.................................................................Turbocharged Bore and Stroke...................................................................4.19 x 5.00 in. (106.4 x 127 mm) Compression Ratio..............................................................17.2 to 1 Net hp: At 2100 rpm (Dig Mode)...............................................95 SAE hp (71 kW) At 2300 rpm (Travel Mode)...........................................100 SAE hp (75 kW) Maximum Torque at 1300 rpm.............................................284 lb-ft (385 N.m) Nozzle Opening Pressure: New ..............................................................................3820 ± 40 psi (26 340 ± 275 kPa) Used.............................................................................3620 ± 40 psi (25 000 ± 275 kPa) Valve Clearance (Cold): Intake............................................................................0.014 in. (0.36 mm) Exhaust ........................................................................0.018 in. (0.46 mm) Oil Pressure at Fast Idle......................................................50 ± 15 psi (345 ± 100 kPa) Static Injection Pump Static Timing......................................Line on governor weight retainer aligned with line on cam ring with No. 1 piston at TDC Dynamic Injection Pump Timing at Rated Load rpm*: 4276D: Dig Mode.........................................NA Travel Mode.....................................16 + 0 - 1° BTDC 4045D: Dig Mode.........................................NA Travel Mode.....................................16 + 0 - 1° BTDC Speeds: Slow Idle.......................................................................1000 ± 25 rpm Fast Idle (Propel Mode)................................................2475.2500 rpm Rated Full Load (Dig Mode) .........................................2300 + 25 - 50 rpm Rated Full Load (Travel Mode).....................................2300 rpm Turbocharged Boost Pressure at Rated Full Load (Minimum w/4045T Metric Engine)..................................9 psi (62 kPa) Cylinder Pressure (Compression Min).................................350 psi (2415 kPa) Number of Flywheel Teeth...................................................129 Electrical System.................................................................24 volt Alternator.............................................................................42 amp Cooling System Pressure....................................................10 psi (69 kPa) Note: *For latest information, see Dealer Technical Assistance Center (DTAC) Solution K000413. POWER TRAIN Transmission .......................................................................Constant mesh with high and low speed ranges. Pressurized lubrication system. Travel Motor.........................................................................A bent axis, axial piston variable displacement motor. Travel Brake ........................................................................Air over hydraulic shoe type brakes in each wheel. Park Brake...........................................................................Air actuated drum type on transmission output shaft. Continued on next page HYDRAULIC SYSTEM.Open-Center Main Pump: Type..............................................................................2 variable-displacement axial-piston System Pressure.Travel.............................................4620 ± 150 psi (31 855 ± 1035 kPa) System Pressure.Digging ..........................................4050 ± 150 psi (27,925 ± 1035 kPa) Minimum Flow ..............................................................28 gpm (106 L/min) used at 2500 psi (17237 kPa) and 2200 rpm Steering Pump: Type..............................................................................Gear System Pressure..........................................................1775 ± 25 psi (12 300 ± 175 kPa) at fast idle System Crossover Relief Valve....................................2465 psi (17 000 kPa) Minimum Flow ..............................................................5.7 gpm (21.64 L/min) used at 1775 psi (12 300 kPa) and 2100 rpm Pilot Pump: Type..............................................................................Gear System Pressure..........................................................640 ± 70 psi (4410 ± 480 kPa) at fast idle Minimum Flow ..............................................................5.5 gpm (20.8 L/min) at 2200 rpm RELIEF VALVE SETTINGS Boom I (Head and Rod) Front Pump...................................4260 + 140 - 0 psi (29 372 + 965 - 0 kPa) Arm I (Head and Rod) Rear Pump ..................................