TRAK MODEL 9100 MODULAR FREQUENCY/TIME SYSTEM
4-1
TM4400013
REV.
D
CHAPTER 4
Maintenance
4-1 GENERAL
The Model 9100 provides maintenance-free operation for the life of the system. This chapter contains
instructions for locating and correcting failures in the Model 9100 MFTS. Troubleshooting instructions are
provided for locating and replacing modules. No troubleshooting aids are provided beyond the module level.
4-2 MAINTENANCE
PHILOSOPHY
All circuits in the Model 9100 are in front-panel replaceable modules, allowing rapid repair at the system
operational level. Additionally, all modules contain fault indicators, allowing rapid recognition and replacement of
a failed module. No attempt should be made to repair a module. These assemblies should be returned to the
factory for repair.
4-3 PREVENTATIVE
MAINTENANCE
Preventive maintenance of the system consists mainly of cleaning and general inspection to maintain the best
environment for the equipment operation. Power Supplies and GPS Reference modules contain fans; these
modules should be periodically cleaned to remove any dust buildup.
4-4 REPLACEMENT of MODULES
All modules are “hot-swappable”, however, the power supply module swapping should be limited to those times
when disruption of power would cause problems in the main system. A procedure for Power Supply replacement
is provided in Paragraph 4-5.3.
4-5 TROUBLE
SHOOTING GUIDE
The following paragraphs provide corrective actions for system failures. Included are procedures for fault
recognition, failed module location, and for module replacement.