Features & Specs
  • Fast ground speed and saw recovery
  • Durable, reliable hydraulic and electrical plumbing
  • Best in class cooling system and fuel efficiency
  • Heavy duty axles deliver under the toughest circumstances
  • With John Deere WorkSight™, JDLink™ monitoring provides real-time machine utilization and health data, plus location information. Fleet Care proactively suggests maintenance to correct problems early before they turn into costly downtime. And Service ADVISOR™ Remote enables your dealer to read diagnostic codes, record performance data, and even update software without a trip to the jobsite. It’s the most comprehensive, easy-to-use suite of technology available for increasing uptime and productivity while lowering operating costs. And it’s only available from John Deere.
Horsepower 174
Wheelbase 110 in
Fuel Tank Capacity 84 gal.
Fuel Consumption 4.0-6.9 gal
Weight 35,000 lbs
Width 9 ft. 7 in.
Length 24 ft 4 in
Height 8 ft 2 in


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Competitive Models
Cat 563
Tigercat 720E


John Deere 643K Wheeled Feller Buncher

Engine    
Manufacture and Model John Deere PowerTech Plus 6068H
Non-Road Emission Standards EPA Tier 2
Gross Power @ 2,200 rpm 174 hp (130 kW)
Displacement 414 cu. in. (6.8 L)
Aspiration Turbocharged, charge air cooled
Cooling Fan Hydraulic reversing fan

Powertrain    
Number of Gears
   Forward
   Reverse

2
2
Maximum Travel Speed
   Low Range
   High Range

5.0 mph (8.0 km/h)
10.8 mph (17.3 km/h)

Felling Head      
Attachment FD45 DSFH
Twin Post
FD22B DSFH
Single Post
FD55 DSFH
Twin Post
Maximum Cutting Capacity 20 in. (508 mm) 22 in. (559 mm) 23 in. (584 mm)
Maximum Accumulation Capacity 7 sq. ft. 5.2 sq. ft. 6.8 sq. ft.
Blade Diameter 53 in. (1346 mm) 56 in. (1422 mm) 58 in. (1473 mm)
Width at Saw Housing 62.3 in. (1582 mm) 63.7 in. (1618 mm) 65 in. (1651 mm)
Height 99 in. (2515 mm) 121 in (3068 mm) 116 in. (2954 mm)

Capacities      
Cooling System 36 qt. (34.04 L)
Fuel Tank 84 gal. (318 L)
Hydraulic Reservoir and Filters 70 gal. (265 L)
2-Speed Gearbox 5.2 qt. (4.92 L)
Pump-Drive Gearbox 5.0 qt. (4.73 L)

Operating Weight    
Standard Equipment less Felling Head 27,990 lb. (12 696 kg)
with Shear FB20 34,290 lb. (15 554 kg)
with Continuous FD45 Saw 33,479 lb. (15 186 kg)
with Continuous FD22B Saw 35,000 lb. (15 876 kg)
with Continuous FD55 Saw 34,685 lb. (15 733 kg)


Overall Dimensions  
A) Maximum Height at Saw-Head Attaching Pin 8 ft. 2 in. (2480 mm)
B) Ground to Saw Head Attaching Pin
   with FD45
   with FD55
   with FD22B

24 in. (604 mm)
24 in. (604 mm)
27 in. (676 mm)
C) Front Axle to 20 in. Tree Centerline
   with FD45
   with FD55
   with FD22B

6 ft. 7 in. (2005 mm)
5 ft. 11 in. (1806 mm)
6 ft. 6 in. (1976 mm)
D) Machine Articulation to Front Axle 4 ft. 5 in. (1346 mm)
E) Wheelbase
     Overall Width
9 ft. 2 in. (2794 mm)
9 ft. 7 in. (2913 mm)
F) Overall Length 24 ft. 4 in. (7405 mm)
G) Overall Height 10 ft. 8 in. (3246 mm)
H) Ground Clearance 19 in. (484 mm)
I) Saw Head Attaching Pin to Axle
   with FD45
   with FD55
   with FD22B

35 in. (880 mm)
35 in. (880 mm)
3 ft. 1 in. (930 mm)
J) Ground to Axle 29 in. (741 mm)
K) Rear Axle to Rear of Unit 6 ft. 11 in. (2110 mm)

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