Table 3-3. Quarterly Preventive Maintenance Checks and Services

TM 11-6625-2609-12

Table 3-2 Monthly Preventive Maintenance Checks and Services-Continued

Table 3-3. Quarterly Preventive Maintenance Checks and Services

TROUBLESHOOTING

Section IV.

proceed through the functions until an abnormal

3-5. General

condition or result is obtained. When an abnor-

Troubleshooting this equipment at the operator

m a l condition is observed, refer to trouble-

or organizational category is based on the opera-

shooting table 3-4 and perform the checks and

tional checks continued in the monthly preventive

corrective actions indicated. If the corrective

maintenance checks and services (table 3-2). To

measures indicated do not result in correction of

the trouble, higher category maintenance is re-

troubleshoot the equipment, perform all functions

quired.

indicated in sequence number 7 in table 3-2 and

Section V. MAINTENANCE OF MK-1004A/ARC

a. Rotate lampholder (fig. 3-1) until it sepa-

3-6. Replacement of Test Panel

rates from the test panel.

Indicator Lamps

b. Extract the defective lamp from the lamp-

CAUTION

holder; use a knife blade or small screwdriver as

Be sure POWER CB circuit breaker is

a pry if the bulb is difficult to remove.

set to OFF.

3-3