Specifications
Specifications
Specifications
PAGES
16–17
Engine 1050J WH
Manufacturer and Model. . . . . . . . . . . . . . . . . . . . . . . . . . Liebherr D 946-L A6
Non-Road Emission Standards . . . . . . . . . . . . . . . . . . . . . certified to EPA Tier 3 emissions
Cylinders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . in-line 6
Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 732 cu. in. (12.0 L)
Net Power (ISO9249). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335 hp (250 kW) @ 1,800 rpm
Net Peak Torque (ISO9249) . . . . . . . . . . . . . . . . . . . . . . . . 1,254 lb.-ft. (1700 Nm) @ 1,400 rpm
Aspiration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . intercooled and turbocharged diesel; engine air dual-stage precleaner with debris screen; alternator air prescreener
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pressure system with full-flow spin-on filter and integrated oil-to-water cooler
Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dual-stage dry type with safety element and aspirated precleaner, with dash-mounted restriction indicator
Cold-Starting Aid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . intake-mounted air-inlet heater
Slope Operation (maximum angle) . . . . . . . . . . . . . . . . . . 45 deg.
Cooling
Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . suction-type cooling fan, front mounted, thermostatically controlled; hydrostatically driven with automatic reverser set on
timer every 30 minutes (run time 30 seconds) and manual switch; perforated engine side shields and heavy-duty front grille
Engine Radiator and Charge Air Cooler . . . . . . . . . . . . . . . 5 fins per in.
Engine Coolant Rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . –34 deg. F (–37 deg. C)
Hydraulic/Transmission Cooling. . . . . . . . . . . . . . . . . . . . . oil-to-air heat exchanger with hydrostatically driven, thermostatically controlled cooling fan with auto fan reversing system
Hydrostatic Cooler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 fins per in.
Powertrain
Transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . automatic dual-path, hydrostatic drive; load-sensing feature automatically adjusts speed and power to match changing
load conditions; each individual track is powered by a variable-displacement pump and motor combination; speed-in-grip
with fingertip speed control; infinite speed control; decelerator pedal controls ground speed to stop; dealer selectable
transmission operating parameters; transmission diagnostic test ports
Maximum Speeds (forward and reverse). . . . . . . . . . . 6.8 mph (11 km/h)
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . single-lever steering, direction control, and counterrotation; full power turns and infinitely variable track speeds provide
unlimited maneuverability and optimum control
Final Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . double-reduction planetary final drives mounted independent of track frame and dozer push frame for isolation from
shock loads; the hydraulic drive motors are mounted to the mainframe; final drives are double sealed with electronic
seal-integrity indicator; bolt-on final-drive seal guards
Drawbar Pull. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116,901 lb. (520 kN) @ .09 mph (1.5 km/h)
Service Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . hydrostatic (dynamic) braking stops the machine whenever the direction/steering control lever is moved to neutral or
whenever the combined decelerator/brake pedal is fully depressed
Parking Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exclusive park brake feature engages wet, multiple-disc brakes whenever the engine stops, the combined decelerator/
brake pedal is fully depressed, the park lock lever is placed in the park position, the emergency travel stop button is
depressed on the dash, the F-N-R control is in the neutral position for more than 7 seconds, or machine motion is sensed
with F-N-R in neutral position; machine cannot be driven with brake applied, reducing wear-out or need for adjustment
Hydraulics
Load-sensing proportional pump-flow control, variable-displacement axial-piston pump
Pump Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 gpm (258 L/min.) @ 1,600 rpm
System Relief Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,700 psi (26 000 kPa)
Filter, Return Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 microns with 5-micron bypass filter
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . single joystick lever
Electrical
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 volt
Number of Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Battery Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,000 CCA
Alternator Rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 amp
Lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 total: cab mounted 6 (4 front and 2 rear) and 4 lift cylinder; and 2 rear reflectors
Vertis QCA
1300 19th Street, Suite 200
East Moline, IL 61244
Cyan
Magenta
Yellow Black
DKA91050WH Page 16 D
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