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Diesel Drive   
The integrated engine oil and filter system combining the oil stabilizing systems, Reserve and Centinel, with Eliminator oil filter extends the oil change interval up to 4000 hours based on oil analysis. The high capacity Mesabi engine radiators are cooled by a hydraulically driven fan for superior cooling efficiency. 
Model    Komatsu SDA16V160E-2 Tier 2 
Type    Water-cooled, 4-cycle, direct injection 
Aspiration    Turbocharged and aftercooled 
Number of cylinders    16 
Rated power (SAE 1995/J1349) @ 1800 rpm  1,875 HP  1400 kW 
Governor    All-speed, electronic 
Hydraulic System   
The power train consists of one main drive. One gearbox drives four identical pumps which draw hydraulic oil from an unpressurized hydraulic tank. Open circuit hydraulics provide maximum cooling and filtering efficiency.

The four-circuit system features a load-limiting governor with oil delivery summation to the working circuits and incorporates pressure cut-off control. Hydropilot prioritizes hydraulic flow giving smooth hydraulic response, simple hydraulic system layout, and a reduced number of components. The hydraulic system includes large swing-out vertical air-to-oil hydraulic coolers with temperature regulated hydraulically driven fans. 
Rated flow (total output)  1,096 U.S. gpm  4140 ltr/min 
Relief valve setting  4,495 psi  310 bar 
Swing flow rate  420 U.S. gpm  1590 ltr/min 
High pressure in line filters
one per pump located at the valve blocks 
  200 microns 
Full flow return line filters (5 double)
at head of hydraulic tank 
  10 microns 
Case drain return line filters (one double element)    3 microns 
Travel and Brake System   
Travel control    2 foot pedals 
Gradeability    Up to 50% 
Travel speed (maximum)  1.3 mph  2.1 km/h 
Service brake    Hydraulic brake 
Parking brake    Wet multiple-disc brake 
Swing System   
Hydraulic motors and drives   
Swing brake, service    Hydraulic 
Swing brake, parking    Wet multiple-disc 
Swing ring teeth    External 
Swing speed (maximum)    4.0 rpm 
Undercarriage consists of one center carbody and two track frames, each side attached by high torque bolts. 
Center frame    H-type 
Track frame    Steel box-section 
Crawler Assembly   
Track adjustment    Automatic hydraulic type 
Number of track shoes (each side)    49 
Number of top rollers (each side)   
Number of bottom rollers (each side)   
Electrical System (Diesel Version)   
System    24 V 
Batteries (series/parallel)    2 x 3 x 12 V 
Alternator    260 A 
Standard working lights    14 Xenon lights 
Standard service lights    throughout platform 
Electrical System (Electric Version)   
System    24 V 
Batteries (series/parallel)    2 x 2 x 12 V 
Standard working lights    14 Xenon lights 
Standard service lights    throughout platform 
Electric Drive   
Type    Squirrel-cage induction motor 
Power output    1350 kW 
Voltage    6,000 – 7,200 V* 
Amperage (approximate)    145 A – 120 A 
Start-up    Soft start 
Frequency standard    60 Hz @ 1800 rpm 
Frequency option    50 Hz @ 1500 rpm 
*Other voltages available on request.     
Automatic Centralized Lubrication   
Two hydraulically powered Lincoln single line automatic lubrication systems are provided as standard, complete with time and volume variable controls. The central lube grease system is supplied from a refillable 200 liter 53 gal barrel. A second, identical system supplies open gear lubricant to the swing ring teeth through a lube pinion. Replenishment of the containers is through the Wiggins connections on the service arm. 
Service Refill Capacities   
Hydraulic oil tank  1,030 U.S. gal  3900 ltr 
Hydraulic system  1,559 U.S. gal  5900 ltr 
Fuel  1,691 U.S. gal  6400 ltr 
Engine coolant  125 U.S. gal  475 ltr 
Engine oil  77 U.S. gal  290 ltr 
Centinel engine oil make up tank  122 U.S. gal  460 ltr 
Operator Cab   
The large and comfortable cab is mounted on 18 viscous damping pads and sound insulated. The cab has an automatic climate control and is pressurized. The operator's seat is air suspended, electrically heated and has a lap seat belt and offers multiple adjustments. The trainer seat is also equipped with a lap seat belt. Low-effort joystick controls are electric over hydraulic with foot controls for front shovel clam, crawler and swing brake. Full instrumentation, KOMTRAX Plus and an AM/FM radio with MP3 ready CD player is fitted. The windshield wash wiper has two speeds and intermittent operation. Amenities include a refrigerator and storage cabinets. Powered and heated mirrors are adjusted from inside the cab. External metal sun blinds on the cab side window and internal roller blinds on all windows are standard. The left hand window is an emergency exit. All windows are tinted parsol green. 
Cab engineering standards are:     
• ISO 3449 Falling Objects Protection Structure (FOPS Level II)     
• ISO 6396 Noise in operator’s cab is 75 dB(A)     
• ISO 2631-1 Whole body vibration and shock below 0.5 m/s²     
• ISO 5349-1 Hand-lever vibration lower 2.5 m/s²     
• ISO 10263-4 Heating and air conditioning second heater and air conditioner as option     
Vehicle Monitoring System   
KOMTRAX Plus is designed for Komatsu mining equipment to provide real time information about the operating status of the machine via a colored display. The integrated digital storage provides a full event history and trend data, which can be downloaded by laptop, optional are W-LAN or satellite modem. 
Operating Weights (approximate)   
PC4000 Backhoe: Operating weight including 9750 mm / 32'0" boom, 4500 mm / 14'9" stick, 22 m³ / 29.0 yd³ backhoe bucket, operator, lubricant, coolant, 1/3 fuel and standard equipment. 
Shoe Width:  Operating Weight:  Ground Pressure: 
47'' / 1200 mm backhoe  869,200 lb / 394 t  31.3 psi / 21.6 N/cm² 
59'' / 1500 mm backhoe  879,800 lb / 399 t  25.4 psi / 17.5 N/cm² 

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