Farm Ireland

Monday 11 December 2017

Smoke-free TM320 sets standard for JCB loaders

Bruce Lett

JCB's TM310 and previously the TM270 artic steer telehandler have proven very popular in Britain and Ireland. The firm's TM310 has now been replaced by the emissionised TM320 and TM320S.

The TM310 featured the firm's own JCB engine, which has now been emissionised to meet regulations.

The TM320 uses the 4.4l JCB Ecomax engine, delivering 125hp (93kW) and 550Nm of torque, while the TM320S comes as standard with a 4.8l JCB Ecomax engine, offering 145hp (108kW) of power.

Incredibly, the firm, which only recently developed its own line of engines from scratch, managed to meet the latest round of exhaust emission regulations without adding a diesel particulate filter or after-treatment system.

To help achieve its smoke-free status, JCB has developed what it describes as an innovative combustion process (patent pending). This has been combined it with a variable geometry turbo, high-pressure common rail fuel injection and cooled exhaust gas recirculation (EGR) to reduce the emissions within the engine.

According to JCB, this means that there is no requirement for diesel particulate filters (DPF) or exhaust after-treatment additives with the JCB Ecomax engines.

External and internal cab styling has been revised on the new models with a new bonnet to the rear and instrument cluster inside the cab. Noise levels have been reduced in the cab largely due to the introduction of a variable speed cooling fan.

All transmission control functions are now integrated into the main joystick lever head, while the transmission dump has been moved to the foot brake, allowing the operator to maintain contact with the lever at all times.

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The firm's Smooth Ride System (SRS) or boom suspension can now be activated on the move via a simple rocker switch on the control console.

The JCB transmission features simplified control modes according to the manufacturer, offering the operator manual or automatic selection of gears.

Torque converter lock-up is available in gears four, five and six in the TM320, while the TM320S offers lock-up in gears two through to six, a feature the firm states is well suited to working on a silage pit and offering fuel savings of up to 16pc.

Standard hydraulic flow on the TM320 through a variable displacement piston pump is 140l/min, while a higher (14pc) 160l/min pump is fitted to the TM320S.

Both machines have fully proportional controls on the right-hand joystick and there is now an option of two boom-mounted auxiliary hoses with an in-cab changeover switch.

JCB says that the auxiliary flow control has been simplified, with an on-screen display of flow rates that can be adjusted on the move to match the attachment.

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