PLANTS AND EQUIPMENT DIGEST
New Cat D6K2 Track-Type Tractor
The new Cat D6K2 Track-Type Tractor delivers superior
finish grading performance and improved fuel efficiency. The new Stable
Blade Control feature utilizes technology that complements operator
blade control input to achieve finish grades faster and with less operator
effort. Eco Modes, both forward and reverse, improve fuel economy and
lower operating costs.
The D6K2 also features hydrostatic drive with Traction Control, which
reduces track slip at maximum load. New wider blades allow more ground
to be covered in one pass and provide as much as 8 percent productivity
improvement in slot dozing applications. New manual adjustable pitch
allows the operator to control blade pitch fore/aft for maximum productivity
in various material conditions.
New Cat M315D2/M317D2 Wheel Excavators
The German-designed Cat M300D Series Wheel Excavator
models have earned a worldwide reputation for reliable performance,
long-term durability, versatility, fuel efficiency, and low operating
costs. The new M315D2 and M317D2, with operating weights of 15 and 17
metric tons (with heavy counterweight), build on these strengths with
design refinements that include added operator comfort, improved visibility,
production-enhancing features (such as the SmartBoom™), and time-saving
New for the M315D2 and M317D2 is an operator's station that adds increased
comfort and visibility, while maintaining the same sound levels, ample
size, and ergonomic layout of controls. Two available seats, all fully
adjustable and with lumbar support and weight compensation, add to operator
comfort, as does the automatic climate control and filtered-air ventilation.
A large easy-to-read color LCD monitor keeps the operator informed of
machine condition (in the local language), and the monitor's easy-to-navigate
menus include an optional tool-select feature that allows pre-setting
parameters for up to ten hydraulic attachments, speeding tool changes.
Joystick steering, available for the M315D2, allows the operator to
keep both hands on the control levers when simultaneously engaging implements
and positioning the machine.
The new models provide enhanced visibility with a standard rearview
camera (displayed on the monitor), a new windshield, and a larger skylight
that allows convenient upward visibility in such applications as truck
loading. Adding to overall visibility are halogen working lights, a
rain protector, and wipers that cover the entire windshield, the upper
section of which can be easily released and stored overhead. Handrails
and anti-skid steps ensure safe, convenient cab ingress/egress.
The fundamental versatility of Cat Wheeled Excavators—whether
the machines are employed in road-construction, sewer-and-water, or
building-construction applications—contributes significantly to
Versatility begins with a choice of two boom and four stick options.
The One-Piece boom allows for substantial reach and digging depth and
is well-suited for most excavating and truck-loading applications. The
Variable Adjustable (VA) Boom is designed for use when the machine frequently
works in tight quarters or lifts heavy loads; added benefits of the
VA Boom include improved right-side visibility and enhanced machine
balance during travel. The SmartBoom option for the new models reduces
stress on linkage components in applications such as rock scrapping,
hammer work, and truck loading.
The M315D2 and M317D2, with top speeds of 37 and 34 kph (21 and 23 mph),
respectively, reduce the time and cost associated with moving from site
to site, as well as with moving material within the site. Available
Ride Control (M315D2), which uses accumulators to dampen machine bouncing
during travel, allows fast, safe, comfortable speeds on varied surfaces.
The new models are adept at working on both dirt and prepared surfaces,
and both can be equipped with a blade for dozing applications and/or
outriggers for increased stability. Also, the M315D2 and M317D2 gain
expanded versatility with available couplers and a range of work tools,
including specialized buckets, hammers, grapples, and vibratory plate
Serviceability, machine management
The M315D2 and M317D2, designed for easy routine maintenance, feature
safe, ground-level access to all daily service points, which are centralized
to reduce downtimes. Grease points are grouped and accessible for hard-to-reach
locations, and two large storage boxes allow tools and supplies to be
kept close at hand. The new models also reduce costs with an extended-interval
The M315D2 and M317D2 also incorporate a redesigned, high-capacity fuel-filtration
system that functions in conjunction with a water separator to allow
working at optimum performance in areas with lesser fuel quality. In
addition, a time-saving refueling pump is available.
The new models also can be equipped with the Cat Product Link system,
which is deeply integrated into machine systems and provides timely
information—such as machine location, operating hours, working
time versus idle time, fuel usage, diagnostic fault codes, security
alerts, and maintenance reminders—to assist with efficient management
of equipment assets. The powerful, web-based VisionLink application
allows viewing information for all fleet assets. Another asset-management
tool, the available Cat Machine Security System, uses special keys with
an electronic chip to control machine usage.
Engine Cat C4.4 Cat C4.4
Net power, hp (kW) ISO 14396 139 (102) 147 (108)
Operating weight, max. (lb/kg) 29,700-33,300 (13,500 – 15,200)
Max. dig depth, ft. (mm) 19 (5 750) 19.9 (6 070)
Max. bucket capacity, yd³ (m³) 1.20/0.9 (0.76m^3) 1.65/1.26
Max. speed, mph (kph) 23 (37) 21 (34).
Trends in Nigerian Maritime and Dredging Sectors
major focus in this edition is the trend of harbor dredging activities
which are on an upward tick. It is no longer news that the current stock
of river ports in Nigeria are overstretched due to the increase of Nigeria’s
economy and the inadequacy of road and rail infrastructure to cope with
cargo delivery from the quays. In July, the Apapa-Ijora road was blocked
for two straight weeks as all hell was let loose on account of the number
of trucks and trailers jostling for the limited road space. Even though
the Lagos State Government is fast-tracking road reconstructions, albeit
belatedly, there seems to be no solution in the short term.. Read
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Dumo Lulu Briggs as
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Muyiwa Omasebi: The face-off Between NIWA, MMSD and Lagos State Govt.
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of Nig. shipping lines.
Carrodano: How govt
can revive Nig. shipping lines.
Epia: The struggles
of Nig shipping lines with cargo reservation scheme.
Gibb: Intricacies of
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many choppers has DPR got?" - Chief Ogunsiji.
Dredging the Niger Delta: Interview of Ben Efekarurhobo.
of Surveying in the Dredging Industry
Of Myth, Reality and Resource Control
Law: A judgment on the ownership of a sand dredging site by the
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Lagos State Attorney General Interpretes state law on sand dredging
NIWA public notice on Lagos State intervention in inland waterways regulation.
Extract Of The Law To Provide For The Regulation Of Waterfront Infrastructure
Development In Lagos State.