1
Completeness --------------------
Check to see that equipment is com-
plete.
Exterior surfaces ----------------
Clean exterior surfaces, including panel
2
and meter glasses. Check both meter
g l a s s e s for cracks.
O p e r a t i o n - - - - - - - - - - - - - - - - - - - - - - - - Operate equipment. Output voltage and
Para 2-6 and 2-7.
3
output current meters should indi-
c a t e output voltage and output cur-
r e n t , respectively.
3-6. Operator's Weekly Preventive Maintenance Checks and Service Chart
Warnings:
1. Be careful when working on the 115-or 230-volt ac line connections Serious injury or DEATH
may result from contact with these terminals.
2. Low-voltage high-amperage current is prestmt at output connections and at connections in-
side equipment. Do not touch connections or remove cabinet cover until equipment is removed from
power eourah Reenergize power supply before performing any maintenance.
1
Cable
---------------------------
Inspect cable for frayed, chafed, or
Refer to higher category
o f maintenance.
cracked insulation. Replace any con-
nector that is broken, arced, or worn
excessively.
Inspect exposed metal surface for rust
Refer to higher category
2
Metal
surfaces
-------------------
or corrosion. Clean and touchup paint
o f maintenance.
as
required.
from the case; use a cloth dampened (not wet)
3-7. Cleaning
with the cleaning compound.
The exterior surfaces of the power supply
c. Remove dust or dirt from the plug and
should be free of dust, dirt, grease, and fungus.
jack with a cotton swab stick lightly dampened
a. Remove dust and loose dirt with a clean,
with the cleaning compound.
soft cloth.
Caution: Do not press on the meter face
Warning: Prolonged breathing of cleaning
(glass) when cleaning; the meter may become
compound is dangerous; make sure adequate
damaged.
ventilation is provided. Cleaning compound is
flammable; do not use near a flame. Avoid
d. Clean the front panel, meters, and knob;
contact with the skin; wash off any that spills
use a soft, clean cloth. If dirt is difficult to re-
on the hands.
move, dampen the cloth with water; mild soap
may be used for more effective cleaning.
b. Remove grease, fungus, and ground-in dirt
3-2
