The Wagner Review
|
Spring 2015
4
WAGNER EQUIPMENT CO.
T
he new Cat
®
M-Series Small Wheel Loaders
— 926M, 930M and 938M— build on the
success of K-Series predecessor models — 924K,
930K and 938K — with engineering refinements
that include new engines meeting Tier 4 Final
emission standards and new options and features
that further enhance value, operator comfort and
safety. Innovative features introduced with the
K-Series carry over to the new M-Series family.
926M Replaces 924K
With the M-Series introduction, the
nomenclature for the smallest model in the family
changes from 924 to 926, reflecting the increased
capabilities of the new model, compared with
those of the 924H and 924Hz. All three new models
have increased engine power and higher tip loads
for improved performance.
Efficient Drive Train/Selectable Power Modes
A new Cat C7.1 ACERT™ engine powers the
three new M-Series wheel loaders and has a
clean emissions module designed to require no
operator intervention and causing no disruption of
work cycles. The module uses a fit-for-life diesel
particulate filter (DPF) and a selective catalytic
reduction system, which requires only the addition
of diesel exhaust fluid. Regeneration of the DPF
occurs passively at a low temperature.
The stepless, four-range, electronically
controlled, intelligent hydrostatic drive system
has been further enhanced to include operator
selected power train modes including a
conventional Hystat mode with aggressive engine
braking, refined Torque Converter mode allowing
the machine to free wheel down hills and around
grades, and an Ice mode setting tuned to maximize
control in slippery underfoot conditions. Testing
shows that the Torque Converter mode can save
up to 5 percent additional fuel in load-and-carry
applications and is the factory default setting.
M-Series models are efficiently powerful and
offer hybrid-type fuel savings by using new power
modes, selected via the soft touch button panel:
Standard mode offers the same power as
K-Series models in ranges 1, 2 and 3 and features
a Power-By-Range logic that boosts the available
power in range 4 for improved roading speed
on uphill grades. In this mode, the engine runs
at a lower maximum speed (1,600 rpm versus
1,800-rpm high idle) with no compromise in peak
ground speed. The 200-rpm reduction in engine
speed is a key enabler to additional fuel savings,
compared with K-Series models. Testing shows
up to 5 percent fuel savings in composite-work
cycles and up to 10 percent fuel savings in specific
applications, such as roading, long load-and-
carry applications, and snow clearing. The lower
maximum engine speed also significantly reduces
in-cab sound levels.
Performance mode boosts engine speed to
1,800 rpm to achieve maximum engine power in
all speed ranges. More power is available for
multi-function work, and the resulting increases
in hydraulic speed and power allow higher
production.
Cat Product Link™ standard
The Caterpillar enterprise telematics solution
enables customers, dealers, and enterprise users
to determine the location, operation and condition
of connected Cat products. Product Link helps
lower owning and operating costs, and the system
offers daily operations support and information for
business decisions. Through the solution’s detailed
asset management, customers can see fuel status,
work time versus idle time, and upcoming service
needs. Included is a three-year subscription to
the web-based VisionLink
®
interface, via cellular
or satellite connection, for generating summary
reports that assist in effective fleet management.
New Generation II Loader Linkage/Smooth
Hydraulics
The Caterpillar patented, Generation II
Optimized Z-bar loader linkage on the M-Series
models delivers the performance and breakout
forces of a traditional Z-bar linkage with the
parallelism and load-handling capability of a
tool carrier. The Generation II lift-arm design,
launched with late-model K-Series machines,
enhances overall forward visibility, and the
redesigned torque tube on standard lift linkages
maximizes visibility when the linkage is above
the level-arm position. Higher tipping load ratings
for the M-Series small wheel loader models,
versus the K-Series, also allow the new models to
comfortably handle heavier payloads.
Electro-hydraulic controls, combined with
independent, dedicated, load-sensing variable-
displacement pumps for the implement and the
steering circuits carry over from the K-Series. The
M-Series hydraulic system enhances multifunction
performance and allows features such as fine-
mode control for fork and material-handling work,
push-button programming of lift, tilt and lower
kick-outs, and electronic dampening at cylinder-
end stroke and kick out positions. Controls also
allow a new feature, Perfect Parallelism, which
uses input from rotary sensors in the linkage to
provide level lift with ± 2-degree accuracy for
improved site lines to fork tips and improved
performance in material handling applications.
Operator safety and customization
The M-Series small wheel loaders also
introduce several new optional features designed
to enhance productivity, operator safety and
serviceability. An available LED light package
includes front and rear LED auxiliary work lights,
Cat
®
M-Series Small Wheel Loader Have New Options,
Operator Features & Improved Fuel Efficiency




