Table 3-3. Troubleshooting-Continued
Voltage output too high
Improper voltage adjustment
applicable operating details sad
adjust voltage to agree with poi-
tion of voltage reconnection panel
b. Remote voltage control cir-
b. Make sure the remote volt-
cuit is not complete when single-
age control circuit is complete.
unit remote operation is required
Main generator noisy
a. Foreign object penetrating
a. Remove object from louvers
the generator ventilating louvers
Caution: Unusual noises from the generator generally indicate a part failure. Stop the generator set immediately (fig. 2-8) as continued
operation may result in additional damage to the generator. Report unusual noise to higher echelon.
Replace selector switch (pa
Generator frequency drops
a. Engine lacks power.
Check timing cycle of engine.
Generator fails to parallel
Unit parallel switch defec-
a. Replace unit parallel switch
Paralleling receptacle defec-
b. Replace paralleling recep-
Brush holders loose
a. Refer to higher echelon
b. Reseat or replace brushes
c. Reconnection panel terminals
c. Tighten reconnection panel
Warning: Be sure unit is shut down before performing work on reconnection panel.
Generator sparks at collector
Section VI. RADIO INTERFERENCE SUPPRESSION
the stray currents. The methods used include shielding
the high-frequency wires, grounding the frame with
bonding straps, and using capacitors and resistors.
herein, applies to electrical disturbances in the radio
3-19. Interference Suppression Components
set and which may interfere with the proper operation of
radio receivers or other electronic equipment.
a. Primary Suppression Components. The primary
suppression components are those whose primary
function is to suppress radio interference.
"interference suppression" used herein, applies to the
components are described and located in figure 3-10.
methods used to eliminate or effectively reduce radio
b. Secondary Suppression Components. These
interference generated by the generator set.
functions which are incidental and/ or secondary to their
3-18. General Methods Used To Attain
Essentially, Suppression is attained by providing a low