TM5-6675-326-14
Table 3-1. Operator Preventive Maintenance Checks and Services - Continued
Item
No.
5
( c o n t )
I n t e r v a l
B Before Operation
ITEM TO BE INSPECTED
B
PROCEDURE
Gently wipe exposed optical
s u r f a c e s . U s e c i r c u l a r m o t i o n
starting from center of glass
and working to edge. Use new
t i s s u e f o r e a c h s u r f a c e . D r y
cleaned optical surface with
f r e s h l e n s t i s s u e , u s i n g c i r c u-
l a r m o t i o n s t a r t i n g a t c e n t er
and working to edge. Clean
i n t e r n a l m i r r o r s u r f a c e s o f
rhomboid assembly with cotton
swabs. Do not attempt to
clean remaining internal
m i r r o r s u r f a c e s .
Equipment Is
Not Ready/Available
I f :
3-7