JCB EcoMAX Engine Installation Manual
© JCB Power Systems Ltd. 320/A9164-1 Page 15 of 64
4. Intake System
WARNING
The Stage IV/Tier 4 engines Induction System is uniquely linked to the engine calibration
therefore the design arrangement of the induction system must be retained in the installations; if
this is not feasible a request should be submitted to JCB Power Systems to obtain a quotation to
develop a suitable calibration for an alternative induction system arrangement.
An air intake system is provided and fitted to the Industrial Power Units. The engine installer
must ensure that the air intake system has an adequate supply of fresh cool air. There are
limits to the inlet temperature of the air entering the Turbo which are detailed in the technical
data sheet. These limits must be adhered to and should be measured during a cooling trial.
The pressure drop performance of the IPU induction system has be validated by JCB Power
Systems and therefore does not need to be tested again.
Important: Air intake systems are a significant source of noise. This must be considered
when ensuring compliance with regulations.
5. Crank Case Ventilation (CCV)
WARNING
Breathing the engine crank case gases can harm and possibly kill.
Stage IV / Tier4 EcoMAX Engines
JCB EcoMAX Stage IV / Tier4 engines are fitted with an open crankcase ventilation (CCV)
system. Engines are supplied with a CCV filter unit connected to the rocker cover by a hose.
The CCV gasses exit at the bottom of the engine behind the ECU as shown in Figure 1.
The service interval for the CCV filter is 1500 hours.
Figure 1: Stage IV/T4 CCV system
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