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.
of defective lamps (par. 39b).
fuses (par. 39a).
f. Checking cable connection.
of defective electron tubes (pars.
36 and 37).
33. Preventive Maintenance
a. DA Form 11266.
DA Form 11266 (figs.
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
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
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.