RADIO INTERFERENCE SUPPRESSION
General. Radio suppression is the elimination or minimizing of the electrical disturbances which interfere with
radio reception, affect operation of electronic equipment, or disclose the location of equipment to sensitive
electrical detectors. Radio interference suppression is accomplished in this locomotive by the use of braided
ground straps with clamped and soldered lugs. To ensure effectiveness of the radio interference suppression
system, suppression components and interference producing subassemblies must be bonded to their respective
mounts with plated tooth-type lockwashers and tinned copper braid bond straps.
Interference Suppression Components. The radio interference suppression system as applied to this locomotive
consists of a ground strap applied to the exciter-auxiliary generator housing and the main generator housing.
Maintenance and Inspection. Whenever radio interference resulting from operation of the locomotive is reported
or experienced, the cause of the interference can be determined by a process of inspection and elimination as
Inspect soldered connections and make certain that the soldered joint is not broken.
Repairs and/or replacement beyond the instructions listed in step (1) above will be reported in the
REMARKS column of the inspection report form as repairs beyond the scope of unit maintenance.
Section III. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
4-6. INTRODUCTION TO UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Unit preventive maintenance checks and services are listed in table 4-1. Observe the following:
Items to be inspected are indicated by a black dot in the appropriate column.
If your equipment fails to operate, troubleshoot with proper equipment. Report any deficiencies as appropriate
using the proper forms as specified in DA PAM 738-750.
If you find a faulty condition that you are not authorized to correct, notify intermediate direct support