U.S. Department of Defense Test Sets Electron Tube TV-2A/U Manual De Usuario
O P E R A T O R ’ S M A I N T E N A N C E
The following is a list of maintenance duties normally performed
b y t h e o p e r a t o r o f T e s t S e t , E l e c t r o n T u b e T V – 2 ( * ) / U . T h e s e
p r o c e d u r e s d o n o t r e q u i r e s p e c i a l t o o l s o r t e s t e q u i p m e n t .
p r o c e d u r e s d o n o t r e q u i r e s p e c i a l t o o l s o r t e s t e q u i p m e n t .
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 ) .
f. Checking cable connection.
a . D A F o r m 1 1 – 2 6 6 . D A F o r m 1 1 – 2 6 6 ( f i g s . 6 a n d 7 ) i s a
p r e v e n t i v e m a i n t e n a n c e c h e c k l i s t t o b e u s e d b y t h e o p e r a t o r .
I t e m s n o t a p p l i c a b l e t o t h e t u b e t e s t e r a r e l i n e d o u t i n f i g u r e 7 .
R e f e r e n c e s i n t h e I T E M b l o c k i n f i g u r e 7 a r e t o p a r a g r a p h s t h a t
c o n t a i n a d d i t i o n a l m a i n t e n a n c e i n f o r m a t i o n p e r t i n e n t t o t h e p a r -
t i c u l a r i t e m . I n s t r u c t i o n s f o r t h e u s e o f t h e f o r m a p p e a r o n t h e
f o r m .
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
1 1 - 2 6 6 . T h e i t e m n u m b e r s c o r r e s p o n d t o t h e I T E M n u m b e r s o n
t h e f o r m .
Item
M a i n t e n a n c e p r o c e d u r e s
1
3
5
Use a clean cloth to remove dust, dirt, moisture, and grease from
t h e c a s e a n d f r o n t p a n e l . I f n e c e s s a r y , w e t t h e c l o t h w i t h
Cleaning Compound (Federal stock No. 7930–395-9542 ) and then
wipe 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
k n o b s d o n o t r u b a g a i n s t t h e p a n e l .
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.