Pannes / Elimination
Defects / Elimination
S y m p t o m
R e c o g n i t i o n
E l i m i n a t i o n R e m e d y
R e m e d y
of defect/Fault
Diagnosis of defect
of defect
f
1
r -
C o m p r e s s o r a i r
C h e c k i n t a k e p u l s e .
d e l i v e r y i s i n s u f f i c i e n t
C h e c k i n t a k e f i l t e r
C h e c k i n t a k e / d i s -
c h a r g e v a l v e
1 s t s t a g e .
V i s u a l e x a m i n a t i o n
c o v e r s h u t t h e i n t a k e
p i p e b y h a n d .
C h e c k i n t e r m e d i a t e
pressu res.
C h e c k i n t a k e / d i s -
c h a r g e v a l v e s o f 2 n d ,
3rd stage if inter-
mediate pressure of
a n y s t a g e i s t o o h i g h .
C h e c k r n t e r m e d i a t e
p r e s s u r e g a u g e a n d
p r e s s u r e o r a g r a m o r
check interm-ediate
press. safety valve as
for blow-off.
l f i n t e r m e d i a t e p r e s -
s u r e i s t o o l o w , t h e r e
i s a l e a k a g e i n p i p e -
system, in the auto-
m a t i c c o n d e n s a t i o n
drarn system or in
sta rt-witho u t-load -
s y s t e m .
Leakage test by
means of soap lather
o r a n y t h i n g s i m i l a r .
U n s c r e w m u f f l e r o f
a u t o m . c o n d e n s a t i o n
d r a i n a n d s t a r t -
without-load-system
a n d c h e c k a s t o l e a k
a g e .
c o m i n g f r o m c r a n k -
c y l i n d e r a n d p i s t o n
Remove crankcase
r e t u r n t o 1 s t s t a g e a n d
keep briefly shut by
h a n d . T h i s c h e c k
r e q u i r e s e x p e r r e n c e i n
t h e h a n d l i n g o f
compressors.
case return
rings as to wear, and
scores.
F i n a l p r e s s u r e n s e s
only to the operating
n r a c c r r r e n f t h p
prefinal stage safety
v a l v e .
C h e c k p i s t o n b u s h
I n t e r m e d i a t e p r e s s u r e
and free floating
safety valve and inter-
piston of final stage
mediate pressure
a n d r e p l a c e i f
g a u g e .
n e c e s s a r y . I n a n y
O i l p r e s s u r e g a u g e .
case however check
w h e t h e r t h e o i l P r e s -
sure is sufficient, if
necessary bleed
pump or readjust
t h e r e g u l a t i n g v a l v e
o n t h e f i n a l s t a g e
c y l i n d e r .
S y m p t d m e
R e c h e r c h e
d e l a p a n n e
D 6 b i t c o m p r e s s e u r
V 6 r i f i e r l a p u l s a t i o '
i n s u f f i s a n t .
d ' a s P i r a t i o n .
V e r i f i e r l e s p r e s s i o '
i n t e r m 6 d i a i r e s
D e b i t d u r e t o u r a u
c a r t e r d e v i l e b r e -
q u i n t r o p i m p o r t a n l
P r e s s i o n f i n a l e n e
m o n t e q u ' a l a p r e s
s i o n d e 1 6 p o n s e d e
l a s o u p a p e d e s e c t
rit6 situ6e avant
6 t a g e f i n a l .
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