The checkups described in this section should be carried out after starting the machine.
See "OPERATION 3.2 OPERATIONS AND CHECKS BEFORE STARTING ENGINE " and later
to execute the engine start up, travelling operations and crane operations.
[1] CHECKING EASE OF ENGINE CRANKING AND ABNORMAL NOISE
Check, before starting the engine, if there is any abnormal noise and if the engine can be easily
cranked.
Also check if there is any abnormal noise in an idle state and a state in which the engine speed is
slightly increased.
• When there is abnormal noise at the time of engine start, the engine may be damaged if the engine
is operated as it is.
Contact us or our sales service agency to request inspection in good time.
[2] CHECKING LOW SPEED AND ACCELERATION STATE OF ENGINE
Check if variations in engine rotation occur or the engine suddenly stops when the machine stops in
normal travelling.
Check if the engine accelerates smoothly when the fuel adjustment dial is turned to the full rotation
position (MAX).
• Pay due attention to the surroundings and check in a safe place.
• When the low speed and acceleration state is substantially poor, an unexpected accident may be
caused such as by the damaged engine, confused operation feel and worsened brake
effectiveness, if the state is continued.
Contact us or our sales service agency to request inspection in good time.
[3] CHECKING ENGINE EXHAUST GAS COLOUR, ABNORMAL NOISE AND VIBRATION
Set the engine at idle and continue the operation under no load for approximately five minutes.
Verify that the engine exhaust gas color is either transparent or slightly blue. Also, check for
abnormal noises and vibrations. Repair if any abnormality is found.
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