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JCB & EU Stage V legislation

EU Stage V is the latest stage of engine emission legislation designed to reduce pollution from off-highway machines, affecting European territories only. In order to meet these guidelines, Autostop and a Diesel Particulate Filter (DPF) has been introduced across all applicable machines.

Below is a guide to the functions on the Stage V engines*.

Autostop

Autostop Possible

When the machine is not in-use and all conditions have been met (eg. isolator lever is up, hand break on, etc) the auto stop icon appears. The machine has now started the countdown to shut down. The countdown timer is adjustable via the in-cab display. Autostop is not possible when regeneration is in progress.

Autostop Off

Autostop has been inhibited by the operator using a manual switch or machine display*. The machine will not automatically shut down when in use. *Machine dependent.

Engine Restart

After an Autostop has taken place, re-start the machine as per the usual start up procedure. Consult the operators manual for details.

Autostop Countdown

The machine is now in the last 30 seconds of the auto stop cycle. Your machine will shutdown following timer completion.

DPF Regeneration

High Exhaust Temperature

The lamp illuminates when exhaust gas temperatures are high, this is not a fault. The machine is undergoing a regeneration and when displayed on its own the machine can continue to be used. If possible do not switch off the engine. If the machine is in a potentially hazardous environment, cancel/inhibit the regeneration or move the machine to a safe place. Only cancel/inhibit if it is not safe to carry out the regeneration, excessive cancelling/inhibition will lead to the requirement of a manual regeneration.

DPF Regeneration cancelled or inhibited by the operator

Regeneration cancelled/inhibited by the operator. This should only be done if the operator considers the machine to be in a potentially hazardous environment, repeated cancelling/inhibiting will lead to the requirement of a manual regeneration.

Regeneration Required

The machine has not been able to successfully regenerate the DPF due repeated cancelling inhibiting or due to the machines duty cycle and therefore requires further action.
A – If safe and possible, work the machine harder by putting the engine under more load until the light goes out*
B – Park the machine in a safe place and carry out a manual regeneration via the in-cab display or switch** (This process typically takes around 45 minutes)
**Machine Dependent * See videos for more guidance

Manual Regeneration Running

The machine is undergoing a manual regeneration and should not be inhibited. The operator should only stop the regeneration if it is no longer safe to do so. The icon will disappear when the regeneration is complete.

Service Regeneration Required

Stop the machine as soon as safe to do so and please contact a service representative.

The machine has not been allowed to complete an automatic or manual regeneration.

Manual Regeneration Required

The engine has gone into a reduced power mode and machine performance has been reduced. This has happened due to repeated cancelling/inhibiting or the machine has not sufficiently operated in a duty cycle which allows for automatic regeneration.

A manual regeneration is required. Park the machine in a safe place and carry out a manual regeneration via the in-cab display or switch* (This process typically takes around 45 minutes).

Your questions answered

EU Stage V is the latest stage of engine emission legislation designed to reduce pollution from off-highway machines, affecting European territories only. In order to meet these guidelines, Autostop and DPF has been introduced across all applicable models.

Autostop

Auto Stop helps reduce fuel consumption by automatically shutting down the machine when not in-use as well as prevents excessive idle times which reduces machine clock hours. It is operator configurable using the easy to use intuitive interface, allowing working patterns to be taken into consideration.

DPF

All Stage V machines above 19kW now have to have a Diesel Particulate Filter (DPF) as part of the after treatment system. The introduction allows emissions legislations to be met. All manufacturers have had to adopt this.

The key changes for Stage V are reductions in particulate mass by approximately 40% and the introduction of particulate count.

Stage V is the sixth in a series of legislative stages which began in 1996, to reduce the following pollutants:

NOx: Nitrogen Oxides
PM: Particulate Matter
CO: Carbon Monoxide
HC: Hydrocarbons

ASC - Removes any ammonia present in the exhaust gases.
DEF – Diesel Exhaust Fluid. Sometimes referred to as Ad-Blue. Used in conjunction with SCR to convert excess NOx emissions into nitrogen gas and water vapour.
DOC – Diesel Oxidation Catalyst. Oxidised hydrocarbons and carbon monoxide emissions, transforming them into water and carbon dioxide. This works automatically, requiring no regeneration.
DPF – Diesel Particulate Filter. Used to capture excess particulate matter which over time will clog the filter and require regeneration. Regeneration is a self-cleaning process via the use of high temperatures to burn of captured particulate matter.
Automatic regeneration – DPF regeneration occurs automatically, no action is required by the operator and the machine can be used as normal. If exhaust temperature reaches a certain limit during an automatic regen then the High Exhaust System Temperature (HEST) lamp may illuminate. The operator needs to be aware of the increased exhaust temperatures, as they can be hazardous in a flammable environment, and may cause harm/damage to nearby objects and personnel.
Manual regeneration – Operator initiated DPF regeneration. The machine cannot be used for normal work whilst regeneration is taking place and it should be parked in a safe environment. The HEST Lamp may illuminate during this process.
SCR – Used in conjunction with DEF to convert excess NOx emissions into nitrogen gas and water vapour
NOx – Gases that are produced during combustion, they are a combination of Nitrogen and Oxygen.
SCRF – A combination of a selective reduction catalyst and a Diesel particulate filter into one element
ULEZ – Ultra Low Emission Zones

*This guide does not replace the operator manual. You must read all the disclaimers and safety instructions in the operators manual before initially operating this product.