Pontoon
Construction
High-Strength, Low Alloy, Weathering Cor-Ten plate steel is
used in the fabrication of the Wilco pontoons. Cor-Ten steel
has 5 10 8 times the atmospheric corrosion resistance and 20%
more tensile strength than similar size A36 structural plate
steel. Each pontoon has 4 bulkheads, providing 5 independent
watertight compartments. The bottoms of the pontoons are reinforced
for rough terrain operations.
Carbody
The standard Cat® 320C carbody is adapted to the Wilco
pontoons making assembly and disassembly faster and easier
Track
Shoes
Specially designed marine grade, extruded 6061-T6 aluminum
alloy cleats with 2 HDMP wear pads are capable of supporting
the pontoon and its payload.
Track
Chains
Three strands of specially designed, heavy-duty, 4 inch pitch
marsh buggy track chain are installed on each pontoon. The
hardened track chain rollers run in pontoon channels lined
with an abrasive resistant wear bar. Drive and idler shaft
sprockets are flame hardened to match the hardness of the
track chain rollers.
Drive
Chains
Engineering class 3.067, high strength, heavy-duty offset
drive chain is used to transfer power from the two stage
planetary final drive gear boxes to the drive shaft sprocket
on each track.
Hydrostatic
Drive
Power for the pontoon tracks is provided by the 320C excavator’s
diesel engine and main hydraulic pumps through a 320C hydraulic
swivel. Cat® 320C travel motors and brakes are mated
to the sealed planetary final drives to provide independent
power to each pontoon track. Standard excavator travel controls
are used.
Maximum
Drawbar Pull:
12,272 kg (27,000 lb)
Maximum Travel Speed:
4.0 kph (2.5 mph) |
