Flowserve WDX R/C - Page 39

WD X U SE R I N S TRU CT IO N SE N GLIS H 71576322 06 - 05
Page 39 of 46
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FAULT SY M P T O M
P u m po ver h ea t sa nd sei z es
 B eari ng s h av e s ho r t li f e
 P u m p vi b ra t es o ris no isy
 M ec h a n ic al se al h as s ho r t li f e
 M ec h a n ical seal leaks excessively
 P u m p re qu ir es excessive po wer
 P u m p l o se s p rim e a ft er s t ar t i ng
 I n s uff icie nt p ress u re d ev el op e d
 I n s uff icie nt ca p ac i t y d el iv ere d
 P u m pdo es not d eliv er li qu i d

P R O BABL E CAU SES POSSI BL E R E M E D IES
   
R otat i ng p a r t r ub b i ng o n s tat i on a ry pa r t i nte r na ll y . C he ck and C O N S U L TF LO W SE R VE, i fne c e ss a ry .
    
Bea ri ng sw o r n. R ep l a c ebea ri ng s .
  
W ea ri ng ri ng s u r fa c e sw o r n. R ep l a c e w o r n w ea rri ng / s u r fa c e s .
  
I m pe ll e r da m ag ed o r e r oded. R ep l a c eo rC O N S U L TF LO W SE R VE fo rim p r o v ed
m at e ri a ls e l e c t i on.

Lea k ag e u nd e rsl ee v edue to j o i nt fa il u r e. R ep l a c e j o i nt an d c he ck fo r da m ag e.
 
Shaf t sl ee v e w o r no rsc o r ed o rr un n i ng off c ent r e. C he ck and r ene w de fe c t iv epa r t s .
  
M e c han ic a ls ea lim p r ope rlyi n s ta ll ed . C he ck a li gn m en t of fa c e s o r da m ag e d p a r t s and
a
ss e m b lym et ho d u s ed.
  
In c o rr e c tt y pe of m e c han ic a ls ea l fo r ope r at i ng
c ond i t i on s .
C O N S U L TF LO W SE R VE.
    
Shaf t r unn i ng off c ent r ebe c au s eof w o r nbea ri ng s
o rmis a li gn m ent .
C he ck mis a li gn m ent and c o rr e c t i fne c e ss a ry .If
a
li gn m en t s at is fa c to ry c he ck bea ri ng s fo r e xc e ssi v e
w ea r
.
    
I m pe ll e r outofba l an c e r e s u l t i ng i n vi b r at i on .
  
Ab r a si v e s o li d si n li qu i dpu m ped.
 
Inte r na lmis a li gn m ent of pa r t s p r e v en t i ng s ea lri ng
and
s eat f r o mm at i ng p r op e rly .
C he ck and C O N S U L TF LO W SE R VE.
 
M e c han ic a ls ea lw a sr un d ry . C he ck m e c han ic a ls ea lc on d i t i on and s ou rc eofd ry
r
unn i ng a nd r epa ir .
 
Inte r na lmis a li gn m ent due to im p r op e rr epa irs
c
au si ng im pe ll e r to r ub .
C he ck m et ho d of a ss e m b ly ,po ssi b l eda m ag e o r
s
tate of cl ean li ne ss du ri ng a ss e m b ly .
R e m ed y o rC O N S U L TF LO W SE R VE, i fne c e ss a ry .
  
E xc e ssi v eth r u s t c au s ed b y a m e c han ic a l fa il u r e
i n si de t he pu m p.
C he ck w ea rc on d i t i on of im pe ll e r , i t scl ea r an c e s and
li qu i dpa ss ag e s .
 
E xc e ssi v eg r ea s e i nba ll bea ri ng s . C he ck m et ho d of r eg r ea si ng .
 
La ck of l ub ric at i on fo r be a ri ng s . C he ck hou rs r un si n c e l a s t c ha ng e o f l ub ric ant, th e
sc hed u l eand i t s ba sis .
 
I m p r ope ri n s ta ll at i on of bea ri ng s( da m ag e d u ri ng
a
ss e m b ly , i n c o rr e c ta ss e m b ly , wr ong t y pe of
bea
ri ng e t c) .
C he ck m et ho d of a ss e m b ly ,po ssi b l eda m ag e o r
s
tate of cl ean li ne ss du ri ng a ss e m b ly andt y pe of
bea
ri ng u s ed. R e m ed y o rC O N S U L TF LO W SE R VE,
i fne c e ss a ry .
 
D a m agedbea ri ng s due to c ont a mi nat i on. C he ckc onta mi nat i on s ou rc eand r ep l a c eda m ag ed
bea
ri ng s .
C . M O T O R E L E CTR I CAL P R O BL E M S
   
Wr ong d ir e c t i on of r ot at i on. R e v e rs e2 pha s e s at m oto r te rmi na l bo x .
 
M oto rr un n i ngon2pha s e s on ly . C he cks upp ly an d fu s e s .
  
M oto rr un n i ng to o sl o w . C he ck m ot o r te rmi na l bo xc on ne c t i on s an d v o l tage.