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12. Loosen the fixing screw of the pressure valve pressure plate and remove the pressure
regulating valve;
13. Check the O-ring of the pressure regulating valve; Replace it if necessary;
14. After the check, clean the parts and install the electric fuel pump in the reverse order.
Attention: A new oil cup sealing ring is required; The screws shall be tightened to the specified
torque!
Check the Fuel Pipe and Fuel Filter
1. Check the fuel pipe for damage.
2. Check whether the high-pressure fuel filter is cracked and whether the fuel flows
smoothly. Replace it if necessary.
Check the Fuel Common Rail
Check the fuel common rail for leaks or cracks and damage, and replace it if necessary.
Engine
Attention:
In order to avoid accidental starting when repairing the engine, adequate protective measures should
be taken to disconnect the ignition system. For example:
Remove the engine stop safety cable from the emergency stop switch assembly and remove the spark
plug cap from the spark plug.
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