Instrument Panel - Piper PA 28-181 Manual

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SECTION 7
PIPER
DESCRIPTION & OPf,RATION
AIRCRAFT CORPORATION
PA.28-I8I, ARCHUR II
A v a c u u m r e g u l ä t o r i s p r o v i d e d i n t h e s y s l e m t o p r o t e c t t h e g ) r o s . I h e
v a h e r s s e ! s o t h e n o r m a l \ r c u u m r e a d s 5 . 0 t I i n c h e s o f m e r c u r v . a s e r t i n g
w h i c h p r o v i d e s s u f f i c i e n t ! a c u u m l o o p e r a r e l l l t h e g y f o s a r i h e i r r a t e t
R P M . H i g h e r r ! 1 ! i n g s $ i l l d a m a g e r h c g y r o s a n d w i l h a l o w s e i n g t h e g y r o s
$ r 1 l b r u n r e l i a b l e . I h e r c g u l a r o r i s l o c a t e d b e h i n d t h e i n s r r u m e n r p a n e l a n d
r s a c c e s s i b l e f r o m b e l o $ t h e r n s l r u m e n t p a n e l .
7 . 1 9 I N S T R T ] } 1 I . : N T P A \ E L
The inslrument panel ( Frgure l- l5l is desrgncd ro accommodale instru
mcnrs and avronrcs equipment lof YFR and lf R llights
T h c r a d i o s a n d t h e c i r c u r t b r e a k e r s a . e l o c a r e d o n t h c u p p e r a n d t o ! v e r
r i g h t p ä n c l f c s p e c r i v e l ! a n d h a ! c c i r c u i r s p r o r i d e d t o r r h e a d d i l i o n o f
o p r r o n a l r a d l o e q u r p m e n t . A n o p l i o n a l r r d i o m a s r e r s w i l c h j \ l o c a t e d n e a r
r h e t o p o f l h e i n s r r u m e n t p a n c l b e t $ e e n t h c r a d i o s t a c k s l t c o n r r o l s t h e
p o w e r t o a l l r a d i o r l h r o u g h r h c a i r c r i h m a s t e f s w i t . h A D e m c r g e o c y b u s
s w ' t c h r s i l \ o p r o \ r d c d 1 o t r . o v i d e a u x i l i a r v p o $ e r t o r h e a v i o n i c s b L l s i n
e ! e n r o f a r a d i o m a s r c r s w i t c h c i r c u i t f a i l u r e . T h e c m € r g c n c v t ' u s s $ i t c h i s
l o c a r e d b e h i n d t h e l o $ e f r i g h t s h i n g u r r d l c f l o f r h e c i f c u i r b r c a k c r p a n e l . , { n
. n g i n c c l u s t e r i s l o c a t e d 1 o t h c r i s h t o l t h e p i l o r c o n t r o l $ h e e t a n d i n c l u d e s a
f u e l p r e s l u f . g ^ u g c . a r i g h r a n d l c l t m a i n I u e t q u a n t t ! ! g a u g e . a n o r t t e m p c r
a r L r r e g a u g e r n o a n o r r f f c s s u r e g a u g c
S l a n d a r d i n s r r u n r e r \ r n c l u d e a c o m p a ! s . a n r i r s p c c d i n d r c , r t o r . a
l a c h o m e t e r . a n a l t r | n e t c r . r n a m m e t e r . a D c n g i n e c l u n e r . a n d a n , r n n u n c i a r o r
p a n e l T h e c o m t a s s i \ m o u n l e d o n t h e r i n d s h i e l d b o $ i n c l e a r \ i e w o f r h c
p r l o t l h e a n n u n c i a t o r p ! r c l i s m o u n t e d i n r h e u p p e r i n n r u m e n t p a n e l t o
l v a r n i h e p i l o l o l n p o s \ i b l e m a l f u n c l i o n i n r h e a l l c . n a r o r , o i t p f c s \ u r e . o r
I n s t r u m e n t o p t r o n s a \ a i l a b l c f o r t h e p a n e t i n c l u d c \ a s u c l i o n g a u - e e .
\ c r t i c a l s p e e d i n d i c n t o r . a l r i t u d c g ) r o . d i r c c t i o n a l g ) r o c t o c k . t r u s p e c d
I n d i c a l o r a n d r u r n a n d r l r p i n d i c a r o f o r l u r n c o o r d i n a l o f . I h e a t t i l u d e g y r o
a D d d r f e c f l o n a l g \ r o a . e \ a c u u m o p e r a r e d r h r o u g h l h e u s e o l a r a c u u m
p u m p l n s t a l l e d o n t h e e n g r n e _ N h i l e r h e r u r n a n d s l i p i n d r c a r o r i s e l e c r r i c a l t y
o p e r a t e d . T h e \ a c u u n r s u c l i o n g a u g e i s o n r h e f a r r i g h i o i r h e i n s t r u m e n r
REPORT: vB-1120
7-11
lsstrED: JULY 2, 1979
REVISED: JLNE 29, 198.1

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