Test or Inspection
8. GENERATOR OVERHEATS
Check to see if the generator is overloaded. Position the ammeter phase selector switch (fig. 2-3) in each of the
three positions in turn, and at the same time observe the current indicator meter (fig. 2-3). The meter should not
give an indication greater than 100% in any phase with any type load. With a straight resistive load, such as in-
candescent lighting, it should not exceed 80%, (100% at 1.0 power factor).
If the meter indicates a load greater than the above values in any phase, reduce the load. Balance
the load on each of the three phases, if possible. Position the voltage selector switch (fig. 2-3), in each
of the six positions, in turn, obtain a voltmeter reading in each of the six positions.
If the voltage, drops under load, the voltage regulator is defective. Report the condition to organizational maintenance.
If this procedure does not correct the malfunction, go on to Step 2.
Check the shelter where the generator set is located for obstructions that would disrupt air flow. See if there are
outlets for heated air and exhaust fumes.
Even though the generator set is weather resistant, it should be located in an adequate shelter that
will protect it from inclement weather. Provide a shelter that is ventilated to allow heated air and
exhaust fumes to escape. Depending upon the ambient temperature range and upon whether the in-
stallation is to be temporary, semi-permanent, or permanent, provide facilities to maintain a reason-
able temperature in the area around the unit. If the unit is used in a closed building or other closed
shelter, pipe the exhaust gases to the outside.
9. PANEL LIGHTS FAIL TO LIGHT
Check for a broken filament or corroded socket in the lamp.
If lamp is damaged, as above. replace lamp. Refer to figure 3-3.