Thermo King SGCO 3000, Руководство пользователя

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Alternator Operation and Diagnosis
121
resistance and warning of coming problems.
Periodic testing is, therefore, your best approach
to preventive maintenance.
Maintenance Procedures
The following paragraphs cover detailed
maintenance procedures, including disassembly
and assembly of equipment for necessary
component removal and replacement. Many
repair or replacement operations can be performed
without extensive disassembly of the generator.
General Inspection
Inspect the entire unit to see that controls are in
order and that there are no loose nuts, bolts,
electrical connections or fittings. Inspect for
secure engine to generator mountings. Remove
any waste material from area around the unit.
Check battery connections.
Insulation
Inspect insulation on wires, coils and control
components. See that insulation is not frayed,
broken or deteriorated. Replace wire having
damaged insulation.
Field Coils, Stator Windings
Visually inspect the field coils and stator
windings, their leads and connections to
determine if they are electrically and
mechanically satisfactory. Look for any evidence
of overheating, burned or frayed insulation, loose
connections, foreign matter, etc.
Generator Housing
Feel the alternator housing cautiously for
abnormal temperatures as determined by previous
experience with the unit. If the generator is
overheated, check the winding temperature with
thermometer, locate the cause such as lack of
ventilation, overload, etc., and correct the
condition or shut down the generator. Inspect the
generator housing for obstruction of air passages.
Generator Bearing
All alternators covered in this manual are fitted
with a permanently lubricated bearing which
requires no maintenance in normal service.
Impeller Fan
Visually inspect the impeller fan to ascertain that
no vanes are missing. Visually inspect the fan is
not encrusted with dirt or other foreign matter to
the point where it will not function properly.
Coupling
Disc type coupling. Inspect to see that coupling
bolts are tight and that the generator is solidly
secured to the engine.
WARNING: DO NOT attempt
adjustments or changes in wiring while a
unit is in operation. The unit generates
sufficient voltage to cause severe and
possible fatal shock. Use extreme caution
when operating in wet or damp locations.