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Komatsu 840.3 Forwarder Specs

The Komatsu 840.3 Forwarder is a versatile and powerful machine designed for efficient logging and timber transportation. With a bunk load area of 44.2 cu ft and a maximum crane reach of 25.6 ft, this forwarder can easily handle heavy loads weighing up to 26,455.5 lbs. Powered by a turbocharged engine generating 168 hp and 520 lbs ft of torque, the 840.3 boasts impressive hydraulic capabilities with a flow capacity of 76.7 gpm. Equipped with a hydrostatic transmission and featuring front/rear tire sizes of 600/65x34 and 600/55x26.5, this machine offers smooth operation and excellent maneuverability. The Komatsu 840.3 Forwarder is a reliable and efficient choice for forestry work in various terrains.


Bunk

Komatsu 840.3 Forwarder Bunk specifications
Load Area 44.2 ft2
Load Weight - 6wd 26,455.50 lbs (12,000.03 kg)
Load Weight - 8wd 26,455.50 lbs (12,000.03 kg)

Crane

Komatsu 840.3 Forwarder Crane specifications
Crane Type CRF 8.1
Gross Lift Torque 78,300.00 lbs ft (106,159.14 nm)
Gross Slew Torque 6,460.00 lbs ft (8,758.47 nm)
Max Reach 25.60 ft (7.80 m)

Dimensions

Komatsu 840.3 Forwarder Dimensions specifications
Ground Clearance 2.25 ft (0.69 m)
Height To Top Of Crane 12.50 ft (3.81 m)
Length 30.50 ft (9.30 m)
Length Of Bunk Area 4.93 ft (1.50 m)
Wheelbase 16.30 ft (4.97 m)
Width Over Tires 8.67 ft (2.64 m)

Engine

Komatsu 840.3 Forwarder Engine specifications
Aspiration Turbo
Displacement 402.80 cu in (6,600.72 cu cm)
Engine Model 66CTA Tier 3
Number Of Cylinders 6
Power 168.00 hp (125.28 kw)
Power Measured @ 2000 rpm
Torque 520.00 lbs ft (705.02 nm)
Torque Measured @ 1500 rpm

Hydraulic

Komatsu 840.3 Forwarder Hydraulic specifications
Flow Capacity 76.70 gpm (290.31 lpm)
Pump Type sing circuit load sensing with variable piston pump
Relief Valve Pressure 3400 psi

Operational

Komatsu 840.3 Forwarder Operational specifications
Alternator Supplied Amperage 140 amps
Front/Rear Tire Size - 6wd 600/65x34, 600/55x26.5
Front/Rear Tire Size - 8wd 600/55x26.5
Fuel Capacity 42.30 gal (160.11 l)
Hydraulic System Fluid Capacity 26.50 gal (100.30 l)
Operating Voltage 24 V
Operating Weight - 6wd 30,644.30 lbs (13,900.04 kg)
Operating Weight - 8wd 33,951.20 lbs (15,400.02 kg)

Transmission

Komatsu 840.3 Forwarder Transmission specifications
Max Speed 14.70 mph (23.66 kph)
Transmission Type Hydrostatic
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