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Wheel loaders promise better performance, fuel efficiency

The M-Series features innovative electronic, fuel and air technologies to enhance reliability and productivity, reduce operating costs and improve fuel efficiency by up to 25 per cent (when compared with H-Series models).

Hastings Deering managing director Dean Mehmet says the M-Series leads the way in fuel efficiency through the latest in integrated technology, allowing for improved profitability and enhanced job site safety.

“New technologies allow for higher productivity and reduced operating costs,” he said. “Hastings Deering is leading the way by adopting technologies that increase productivity, fuel economy and reduce emissions.”

More power, less fuel

Caterpillar says the new models, powered by Tier 3 ACERT engines, have more engine power than their K-Series predecessors. With a net rating of 171kW, the 950M produces nine per cent more power than its K-Series counterpart, and the 962M, rated at 186kW, has 13 per cent more power.

Also, peak torque is increased at an average 18 per cent that results in more useable power at the wheels. Another added function is the economy mode that automatically senses power-train load and adjusts engine speed and torque for optimum performance and fuel efficiency.

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The entire range of M-Series models come with a lock-up clutch torque converter with lock-to-lock shifting (transmission gear remains locked during gear shifts), plus the Cat single clutch speed shift system (which keeps the forward/reverse clutch engaged during gear shifts).

Auto-shift features control automatic shifting of the transmission and engagement of the lock-up clutch. Together, these two features maintain more effective and efficient torque flow through the transmission during gear changes, which is especially valuable when accelerating up ramps.

The new models come as standard with Caterpillar’s redesigned axles, with disc-type differential locks that are manually activated by a switch on the floor to improve tractive ability, increase productivity and reduce tyre scuffing. As an option, the fully automatic front and rear axle differential locks measure differences in axle speeds and require no manual operation.

Also included is a new external calliper-disc parking brake mounted to the input shaft of the front axle. With an externally fitted calliper-style park brake, there is no oil to change, which further reduces fuel and maintenance costs. The brake is also easily accessible for inspection and service when required.

Effective hydraulic system

The hydraulic systems have also undergone dramatic design changes, with the main hydraulic valve developed into a mono-block with an integrated ride control section.

The new design reduces the weight and will be included on all M-Series models. Auxiliary third and fourth hydraulic functions can also be added, with the addition of a second remote valve. The new ride control system has two accumulators, which enables it to be more effective both in laden and unladen conditions, and increases productivity and operator efficiency.

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The hydraulic system components are protected by full flow and kidney-loop filtration, which filters the oil before returning to the tank. There is also a case drain screen for additional protection and, finally, a separate kidney-loop filter with a finer micron rating, which continuously filters smaller particles out of the system. The multi-level filtration ensures the hydraulic oil is clean and thoroughly protects the rest of the hydraulic system from contamination. Furthermore, a new thermal bypass valve has been added to improve hydraulic system warm-up.

Caterpillar’s key design goal for the M-Series was to improve the operating environment, reduce operator fatigue and increase performance. The aim was to ensure the safety and comfort of the operator by offering a clean and quiet space, and improve their confidence in the control of their machines, with controls that are intuitive and low effort.

Before entering the M-Series cab, a switch in the electronic service centre allows ground-level unlatching of the door, which swings open via a gas strut. The stair-like steps and repositioned grab handles offer safe entry and exiting, as does the wider door opening.

Once inside the cab, visibility is enhanced with new hydro-formed ROPS posts, an extended glass area on the door, and larger convex mirrors with integrated spot mirrors. The cab is enhanced with automatic climate control, low sound levels and a vibration-dampening cab-mounting system.

In operating the M-Series, the new optional electro-hydraulic joystick steering features speed-sensing force feedback, for added comfort and control in the cab. A new multi-purpose, colour touch screen display also simplifies the operator interface with machine controls, rear vision camera (reverse activated) and the new fully integrated Cat Production Measurement system. Intuitive navigation with in-language text enables operators to modify certain machine operating parameters and monitor machine conditions at the touch of their fingers. Sealed against moisture and dirt, the centralised switch panel with LEDs and touch screen display provides reliability and good access to frequently required functions, even while wearing gloves.

Advanced technology = efficiency

To improve jobsite efficiency and manage the new M-Series for optimum return on investment, Cat Connect offers LINK, PAYLOAD and DETECT technologies. Product Link helps fleet owners track locations, hours, fuel consumption, idle time, events and diagnostic codes by wirelessly reporting it via the online VisionLink user interface, to help lower owner and operating costs.

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Cat Production Measurement delivers ‘on-the-go’ payload weighing through the in-cab display, so operators can work more efficiently and deliver exact loads with confidence. Operators can view payload weights at a glance to ensure precise bucket and truck loads. The system indicates when the linkage is in the weighing range, allowing operators to confirm an accurate scaled weight. The system also allows operators to manually activate the tip-off feature for those applications in which ‘auto’ tip-off detection is not ideal.

The payload system is integrated with VisionLink, which makes it simpler for site managers to monitor material movement from their office, to manage productivity and meet daily production targets. The rear vision camera enhances jobsite awareness and enables operators to work with greater confidence and at a peak potential while keeping people and assets safe.

Source: Hastings Deering

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