Chapter 3. OPERATOR'S MAINTENANCE

OPERATOR'S MAINTENANCE

32. General

The following is a list of maintenance duties normally performed

by the operator of Test Set, Electron Tube TV2(*)/U. These

procedures do not require special tools or test equipment.

a. P r e v e n t i v e m a i n t e n a n c e ( p a r . 3 3 ) .

b. V i s u a l i n s p e c t i o n ( p a r . 3 4 ) .

c. O p e r a t i o n a l c h e c k ( p a r . 3 5 b ) .

d. Replacement of defective lamps (par. 39b).

e. Replacement of defective fuses (par. 39a).

f. Checking cable connection.

g. Replacement of defective electron tubes (pars. 36 and 37).

33. Preventive Maintenance

a. DA Form 11266. DA Form 11266 (figs. 6 and 7) is a

preventive maintenance checklist to be used by the operator.

Items not applicable to the tube tester are lined out in figure 7.

References in the ITEM block in figure 7 are to paragraphs that

contain additional maintenance information pertinent to the par-

ticular item. Instructions for the use of the form appear on the

form.

b. Items. T h e i n f o r m a t i o n s h o w n b e l o w s u p p l e m e n t s D A F o r m

11-266. The item numbers correspond to the ITEM numbers on

the form.

Item

Maintenance

procedures

Use a clean cloth to remove dust, dirt, moisture, and grease from

the case and front panel. If necessary, wet the cloth with

Cleaning Compound (Federal stock No. 7930395-9542 ) and then

w i p e the parts with a dry, clean cloth.

All control knobs should work smoothly, be tight on the shafts, and

should not bind. Tighten all loose knobs and be sure that the

knobs do not rub against the panel.

Repair any cuts in the power cord insulation by covering them with

rubber tape and then with friction tape.

Warning: Cleaning compound is flammable and its fumes are toxic. Do

not use near a flame; provide adequate ventilation.