Section IV. OPERATOR' MAINTENANCE INSTRUCTORS

TM 11-5820-554-12

Section III. OPERATIONS

screwdriver. Tighten the locknut after adjustment.

9-8. Operating Procedures

NOTE

After the regulator has been installed and the

A 10- to 30-minute warmup period should

installation wiring is checked, proceed as follows:

be allowed before adjustment of output

a .See that the regulator and the equipment connected

voltage, when a very exact setting is

to it are turned off.

necessary.

b. Apply power to the unit; set the circuit breaker to

e. Energize the equipment connected to the output

ON (up). The LINE pilot lamp should light.

receptacles and note that the output voltage remains

within the rated accuracy.

NOTE

9-9. Stopping Procedures

If an abnormal indication is obtained

(fig. 9-3)

during the starting procedure, higher

a. Turn off the equipment by setting the circuit breaker

category maintenance is necessary.

to OFF (down).

c. Connect Multimeter AN/USM-223 to the OUTPUT

b. Observe that the LINE indicator lamp is

receptacles.

extinguished.

d Remove the protective cap on the OUTPUT

VOLTAGE control, loosen the locknut, and adjust the

control to the desired output voltage with a

Section IV. OPERATOR' MAINTENANCE INSTRUCTORS

9-10. General

Operator's maintenance instructions are covered in paragraph 3-19 through 3-22. Cleaning is covered in paragraph

3-24.

9-11. Operator's Daily Checks and Services Chart for Regulator, Voltage CN-1214/G

B-Before

Item

Interval

Equipment is not ready/

No.

available if:

Item to be inspected

Procedures

Taps and settings

Check that all taps and

If equipment fails to perform

settings match input power

within the rated operating

and load requirements.-

specifications..

Section V. ORGANIZATIONAL MAINTENANCE INSTRUCTIONS

daily and monthly services are a part of the quarterly

preventive maintenance checks and services and must

9-12. General

be performed concurrently. All deficiencies or

Organizational maintenance instructions are covered in

shortcomings will be recorded in accordance with the

paragraphs 3-25,, 3-26, and 3-27. Touchup painting is

requirements of TM 38-750. Perform all the checks

covered in paragraph 3-29.

and services listed in the quarterly preventive

maintenance checks and services chart (para 9-15) in

|9-13. Deleted.

the sequence listed.

9-14. Quarterly Maintenance

9-15. Deleted.

Quarterly maintenance checks and services on

Regulator, Voltage CN-1214/G are required. Periodic

Change 6 9-4