This chapter contains operator maintenance instructions for the TD-1288 ( )/GRC and TD-1289
( )(V)/GRC muitiplexers. There are no tools Or test equipment required for operator maintenance.
Do not go beyond the instructions given in this chapter.
There are no Iubrication requirements for the multiplexers.
OPERATOR'S PREVENTIVE MAINTENANCE
Preventive maintenance is the systematic care, servicing, and inspection of equipment to prevent
occurrence of trouble, to reduce downtime, and to ensure that the equipment is performing to its
maximum operational capability. Preventive maintenance includes inspection and checking of the
equipment on a regularly scheduled basis.
The following instructions apply to the operator PMCS procedures listed in table 3-1.
When doing any PMCS or routine checks, keep in mind the warnings
and cautions listed in the front of this manual.