Volvo Penta 2001 Workshop Manual page 25

Rem ov e t he packi ng r i ng ( 12) on t he t ur bi ne shaf t and t he
t wo packi ng r i ngs ( 13) on t he oi l def l ect or . Cl ean t he par t s
car ef ul l y .
M easur i ng and I nspect i on
Tur bi ne W heel
and Shaf t
Unf ast en t he f our scr ews whi c h hol d t he c om pr es s i on
bear i ng ( 8) . Usi ng a sm al l c opper
m andr el , t ap out t he
c om pr es s i on bear i ng and t he bushi ng ( 9) .
Then r em ove
t he ci r cl i ps ( 10) i nsi de t he bear i ng housi ng and r em ov e t he
t wo bear i ngs ( 11) .
Chec k t hat t he t ur bi ne wheel and shaf t ar e f r ee f r om
m e c h a n i c a l
dam age . The v anes m us t not be wor n or out of
s hape. Do not
t r y
t o r eal i gn t he v anes . Dam aged par t s
shoul d be r epl aced .
Pl ace t he shaf t on t wo suppor t s, whi c h shoul d be under t he
bear i ng r ecesses, and check t he t hr ow at t he end of t he
shaf t . The m ax i m um per m i ssi bl e t hr ow i s 0 . 011 m m .
Chec k t he di am et er of t he shaf t bear i ng r ecesses . The
m i n i m u m per m i ssi bl e di am et er
i s 7. 98
m m . Chec k t he wi dt h of
t he shaf t pi st on r i ng gr oov e . M ax i m um per m i ssi bl e wi dt h
i s 1 . 29 m m.
Com pr essor Housi ng, Tur bi ne Housi ng
Chec k t hat t he housi ngs ar e f r ee f r om cr acks or ot her
d a m a g e
caused by excessi ve wear and t ear . Dam aged par t s
shoul d
be r epl aced .
Heat Shi el d
Chec k t hat t he heat shi el d i s f r ee f r om dam age c aus ed by
wear and t ear , heat or cor r osi on, and r epl ace i t i f n e c e s s a r y
.
Bushi ng, Oi l Def l ect or , Com pr essor
Bear i ng
Chec k t hat t he par t s ar e f r ee f r om wear and t ear and
d i s c o l o u r a t i o n
. Dam aged par t s shoul d be r epl aced even i f t he
am ount
of wear and t ear i s wi t hi n t he per m i t t ed
t o l e r a n c e s .
Bushi ng
Oi l Def l ect or
Bear i ngs
Chec k m eas ur em ent
( A) , whi c h shoul d not be l ess t han
4. 07 m m.
Chec k m eas ur em ent s ( B) and ( C) . ( B) shoul d not be m or e
t han 1 . 31 m m , ( C) shoul d not be m or e t han 1 . 11 m m.
Com pr essor Bear i ng
Chec k t he wi dt h of t he bear i ng, and r epl ace i t i f t he am ount
of wear and t ear i s i n
excess of t he per m i t t ed t ol er ance .
M i ni m um per m i ssi bl e wi dt h i s 3. 98 m m .
Chec k t he bear i ngs f or abnor m al
wear and t ear or
di scol ourat i on, a n d r e p l a c e t h e m w h e r e n e c e s s a r y . C h e c k t h e
i nt er nal and ext er nal di am et er s of al l bear i ngs . The e x t e r n a l
di am et er shoul d not be l ess t han 12 . 31 m m , t he i nt er nal
di am et er shoul d not be m or e t han 8 . 04 m m.