User's Manual

385700-1006-006 MAINTENANCE AND TROUBLESHOOTING
Document use is restricted to that described on cover 5-1
CHAPTER 5
MAINTENANCE AND TROUBLESHOOTING
5.1 PREVENTIVE MAINTENANCE, INSPECTION, AND CLEANING
This section describes preventive maintenance procedures for the MDR and BDR assemblies.
Inspect and clean the MDR and BDR assemblies yearly or as required in severe environments
to ensure continued operation. After inspecting the assemblies, take any necessary remedial
actions. See Table 5-1 for assistance.
Table 5-1 Preventive Maintenance Inspection and Cleaning
Description
Normal Condition Remedial Action
1. Inspect each unit for
missing or loose
hardware
All hardware in place and
secure.
Replace missing hardware or
tighten as necessary.
2. Inspect each unit for dust
and dirt accumulation.
The units should remain free
of dust or dirt accumulation.
Clean with a damp cloth.
3. Inspect all wiring and
cabling.
No cracking, splitting,
breakage, or pinching of
insulation or connectors. No
signs of aging.
Replace bad wiring or cabling
as soon as possible.
Note: Power the equipment off during external cleaning.
5.2 TROUBLESHOOTING
Before beginning any in-depth troubleshooting, ensure that power is available to the unit.
Ensure that all cable connections are secure. Refer to Figure 5-1 and Figure 5-2 for MDR and
BDR initial troubleshooting.
This section describes the troubleshooting procedures for the MDR and BDR assemblies.
Locate the unit’s symptom in the Fault Indication column. The Fault Description column lists
components or functions that can cause faults. The last column, Corrective Action, specifies
the action necessary to correct the fault. After taking corrective action, perform the
appropriate diagnostic procedure to verify that the correction was successful.
For malfunctions that the fault isolation table does not list, contact Andrew’s technical support
personnel.