The 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 Stage IV 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.
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.
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.
The step-less, 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 % additional fuel in load-and-carry applications and is the factory default setting.
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 (1600 rpm versus 1800‑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 % fuel savings in composite-work cycles and up to 10 % 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.
The new M-Series 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, engine-bay LED lights to illuminate routine service points, such as oil and coolant levels, and lighting to illuminate the fuel area. A new Object Detection System is available that uses radar and provides both visual and audible alarms to warn the operator of objects close to the rear of the machine.
Operators also can customize M-Series controls by using the new, redesigned secondary display, which is standard. The secondary display is now larger, providing more customization and information. New features available through the secondary display include coded start and operator profiles, application profiles, service-mode and preventive maintenance alerts, independent flow adjustment for third and fourth hydraulic functions, directional-shift response, ride-control activation speed, automatic-lubrication intervals, bucket-float activation, feather-catch mode, rack snubbing, multiple camera inputs, perfect parallelism, diesel exhaust fluid (DEF) level, and remaining time until fuel fill.