jcb JS300 Service Manual page 519

4 Set the engine RPM to between 1000 and 1050.
5 Select the required regeneration by clicking the
Forced Regen or Slow Forced Regen button on the
diagnostics screen.
6 Wait for the regeneration symbol to show on the
DECU display and then press the regeneration
console switch.
The engine ECU responds by increasing the engine
RPM to 1500.
The MECU energises the load assist solenoid valve.
The valve enables loading of the engine by bringing
the P2 section of the pump to full flow. This ensures
that the exhaust gas temperature is sufficient to
enable effective regeneration.
The MECU de-energises the controls isolate solenoid
valve. This ensures that the machine cannot be
operated while the hydraulic pump output is
influenced by the load assist valve. The controls
isolate padlock symbol is shown on the display for 2s.
C-94 9813/5100-1
Section C - Electrics
Engine and Power Control
Engine Exhaust After Treatment
C-94