User Manual

ADCP-75-179 • Preliminary Issue A • September 2004 • Section 4: maintenance

Page 4-19

5 SCHEDULED MAINTENANCE REQUIREMENTS

Table 4-9 specifies the system maintenance requirements and the recommended maintenance

interval for each maintenance task. Refer to the manual specified in the table for the required

maintenance procedure.

Table 4-9. Scheduled Maintenance

INTERVAL ITEM REQUIREMENT

1 month Battery* Check float voltage.

Check system ambient temperature.

Check system float current.

6 months Battery* Perform 1 month scheduled maintenance tasks.

Check individual battery terminal temperature.

Check individual battery float voltages.

12 months Battery *

RU cabinet filter**

Perform 1 and 6 month scheduled maintenance tasks

Complete detailed physical inspection.

Re-torque terminal connections.

Perform general system maintenance.

Perform cabinet maintenance.

Remove and clean the RU cabinet filter. Refer to the appro-

priate Remote Unit Installation and Maintenance Manual (see

Related Manuals section) for the required procedures.

24 months Battery* Perform 1, 6, and 12 month scheduled maintenance tasks.

Test battery system for rated capacity.

60 months HU Fans

STM Fan

LPA Fans

Remove and replace the cooling fans in the HU, STM, and

LPA. Refer to the appropriate Installation and Maintenance

Manual (see Related Manuals section) for the required proce-

dures.

* Refer to the PRC-SERIES OPERATING AND FIELD SERVICE MANUAL (provided with the

back-up battery system) for the specified battery maintenance procedures.

**Though it is not recommended that the RU be installed in a salt-air environment, if done so, clean the

cabinet filter on a monthly basis instead of on a 12 month basis. In addition, the RU should be

inspected for corrosion due to salt, particularly near the fans and around the connectors. The MTBF of

the RU may be impacted if the RU is exposed to salt-air.