John Deere 844K III » Harvest Equipment and Theriault Equipment

John Deere 844K III

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Features

Engine

  • Our FT4/Stage IV diesels employ field-proven cooled exhaust gas recirculation (EGR), easy-to-maintain high-uptime exhaust filters, and selective catalytic reduction (SCR).

Hydraulics

  • Increased hydraulic forces, engine power, and torque make quicker work of tough aggregate piles.
  • Hydraulic plumbing has been improved and articulation-joint and linkage pins enlarged to help boost productivity.
  • Bulkhead fittings eliminate long hoses, simplifying replacement and component exchange.
  • Hydraulic tank is positioned behind the cab for easy access, and hoses have been routed away from other vital operating components, for longer wear life.

Productivity

  • Bigger material-handling buckets reduce fill time in processed aggregates, better retain loads, and ultimately conserve fuel.
  • Low center of gravity and optimized fore-and-aft balance deliver solid stability and full-turn tipping-load capacities.
  • Transmission shift logic and programmable clutch cutoff have been improved, for increased productivity in a variety of conditions.

Serviceability and Uptime

  • Quad-Cool design places coolers in a unique boxed configuration that’s isolated from engine heat, for increased efficiency and durability.
  • Standard hydraulic reversing fan automatically reverses at predetermined intervals, or can be programmed through the monitor to eject debris from the cooler cores.
  • Color-coded fluid-sample and diagnostic test ports help speed preventative maintenance and troubleshooting.

Controls

  • With larger material-handling buckets, the aggregate handling option can load out 24 to 26 short tons of non-heaping, lower-density processed matter in just two passes. With heavier materials, achieving 12 to 13 tons is not a problem.
  • Spec the low-profile tire option to increase traction, flotation and stability.
  • New slip-resistant plates at the rear of the machine enable more sure-footed grip.
  • Slip-resistant steps, platforms, and handrails provide uninterrupted three-point access.

Specifications

MODEL John Deere 844K-III Wheel Loader
DRIVELINE  
Engine Manufacturer John Deere
Engine Model PowerTech PSS 6135
Emission Rating Tier 4
Displacement, ltr (Inches) 13.5 (824)
Rated Speed, rpm 1600
Engine Output - Net, kW (hp) 283 (380)
Torque, Nm (lbf / ft) 1804 (1331)
Torque Rise, % 44
Transmission Type Powershift
Front Differential Type Open
Rear Differential Type Open
Tire size - Standard 875 / 65 R29
Service Brake - Type Wet Multi Disc
Service Brake - Location All Wheels
Service Brake - Actuation Hydraulic
Parking Brake - Type Wet Disc
DIMENSIONS  
Height - Over Cab, mm (ft/in) 3760 (12 ft 4 in)
Wheelbase, mm (ft/in) 3700 (12 ft 2 in)
Length - Including Bucket, mm (ft/in) 9710 (31 ft 10 in)
Ground clearance, mm (inches) 463 (18.2)
Width Over tires - Std, mm (ft/in) 3408 (11 ft 2 in)
Height - Pivot Pin, mm (ft/in) 4620 (15 ft 2 in)
Reach - At 2130mm 45 Dump, mm (ft/in) 2270 (7 ft 5 in)
Turning Circle - Maximum, mm (ft/in) 15230 (50 ft )
CAPACITIES  
Fuel Tank, ltr (gallons (US)) 534 (141)
Hydraulic Tank, ltr (gallons (US)) 184.3 (48.675)
Axle - Front, ltr (gallons (US)) 68 (18)
Axle - Rear, ltr (gallons (US)) 68 (18)
Transmission, ltr (gallons (US)) 28 (7.375)
Heaped Capacity, m (yd) 5.5 (7.25)
Bucket Capacity - Smallest, m (yd) 4.8 (6.3)
Largest bucket capacity, m (yd) 6.1 (8)
Breakout - Bucket , kgf (lbf) 21456 (47302)
Ride Control System Yes
System Voltage, V 24
Alternator Output, Amp 130
Pump Type Axial Piston Pump
Pump Flow, lt/min (gallons (US) / min) 548 (145)
System Pressure, bar (PSI) 241.32 (3500)
WEIGHTS  
Operating Weight, kg (lbs) 33808 (74534)
COMPARABLE BUILD  
Dump Height, mm (ft/in) 3280 (10 ft 9 in)
Reach at Full Height, mm (ft/in) 1460 (4 ft 9 in)
Tipping Load - Straight, kg (lbs) 25083 (55298)

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