5 -40
5-12. Every 1000hr or 1-year check
(2) Checking Nozzle injection pressure
Contact your authorized local dealer for check.
Normal injection pressure (Common rail): 180MPa (26100 psi)
▶ Only qualified service personnel should perform this maintenance. Contact your
authorized local dealer for this maintenance. Operation of engines with incorrect
valve lash can reduce engine efficiency, and also reduce engine component life.
Caution
▶ Ensure that the engine can not be started while this maintenance is being
performed. To help prevent possible injury, do not use the starting motor to turn the
flywheel.
▶ Hot engine components can cause burns. Allow additional time for the engine to
cool before measuring/adjusting valve lash clearance.
Warning
▶ Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel
system component that will be disconnected. Fit a suitable cover over disconnected
fuel system component.
▶ If a fuel injector is suspected of operating outside of normal parameters, it should
be removed by a qualified technician. The suspect fuel injector should be taken to
an authorized agent for inspection.
Caution
▶ Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.
▶ Work carefully around an engine that is running. Engine parts that are hot, or parts
that are moving, can cause personal injury.
▶ Make sure that you wear eye protection at all times during testing. When fuel
injection nozzles are tested, the high pressure test fluid can pierce the skin and
cause serious injury to the operator. Always keep the tip of the fuel injection nozzle
pointed away from the operator and into the fuel collector.
Warning
(1) Adjusting Engine valve clearance
Valve clearance
Contact your authorized dealer to check the
valve clearance.
Normal: 0.25mm (0.0098 in)
If the gap is large, valves makes a loud tapping
noise and if the gap is too small, it is hard to
compress by which the engine output falls down
or burns a valve.
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