TROUBLESHOOTING
CHAPTER 4 TROUBLESHOOTING
4-1 Inspections before operation and maintenance.
4-1.1 Inspections before operation
4-1.1.1 Check the insulated resistance
An insulated resistance usually results in the creepage of the alternator
when it is below the regulated value and then brings on the security
problems. The user should check the insulated resistance
between the master and subordinate reels and the insulated
resistance between the reels and the crust with 500V megaohm-meter
regularly. The value should not be under 2 M ohms at normal
temperature; otherwise these parts should be dried. Use the electric
cooker, infrared ray or big bulb or something else to heat them up
outside until the insulated resistance reaches the regulate value.
4-1.1.2 Check the insulated resistance
Make sure all the firming components are tight and the rotor is easy to
turn by hand without impacting, scrubbing and any abnormal noise. Do
not let the rain or other liquid drop into the alternator.
4-1.2 Starting the generator
The end of voltage output should be on before running the machine.
Generator should self excite, generate voltage in gear and reach the
rated power when engine speed is accelerated to the rated value.
Otherwise, stop the machine and check it.
4-1.3 Maintenance
Keep generator away from the oil, vapor, acidic/alkaline gas, saline
brume and do not let any other solid matter fall into the generator. Keep
drafty when the generator is running. Do not put anything on the
surface of generator for baffling ventilation and heat dispersion. Do
not operate under over-loading condition continuously and inspect
bolts and mechanical firming components routinely.
4-2 Malfunction and troubleshooting for diesel engine
4-2.1 Causes and troubleshooting for the engine not being
started
There are many factors causing non-starting issues. General causes for
non-starting problem are summarized in Table 5
For brand new diesel generator, if you cannot start it, it is usually caused by
entrapped air in the fuel hose. Please full off fuel hose from fuel injection pump
and drain fuel freely to release all the entrapped air.
To Next Page
Loading...