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495D EXCAVATOR 26,184 lb (11 877 kg)
Transport Height.......................................................7 ft 5 in. (2.25 m)
Transport Length......................................................23 ft 3 in. (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.