Cadillac 54-6219 1954 Shop Manual page 291

NYDRA-MATIC DRIVE
servo to apply front band. No appreciable amount
of air shoald e.scape from either front or rear
servo, or any other passages on side of case except
that which may escape through piston ring gaps.
S.
Main Line Pump Feed
Air pressare applied into this passage will re
sult in a large amount of air and oh blowing out
from front side affront drum assembly. This hlow
by is enaitted from re.ar side of front pumup and is
mlorLn While air pressure is applied to ti
LiC
point
observe cloeely other passages en side of case for
51 iglite St amnoulit of e ecap big sir or oil hLlhhles
which would he an indication of ilitcrcoanecrod
passages.
9. Pressure Cage Hole ta Tap
'f
Case
Air pcessure applied into this passage should
pruce no iea whatsoever if plug is scaled itt
place between haod adjusting screws.
Observe other passages far escape of air.
10. hxliausr Port for Valve Body
Air pressure applied late this iLolo aitould ho a
complete biow-hy to inside of transmission Costa.
Remove blnw nozale and visaaiiy inspect this hole
to he sure that
Li
IS cunnpleteiv open for its full
diameter to the inside afcoee. A partial obstruction
of this passage can cause 5xr shift conditions.
Il. T. V. l'ressure Line
ThLs peesage i.e the nnoduleti:ig T,V,prossure line
to the TV. plug in the pressure regvlator and need
not be checked in this diagnosis precedurc.
12 Reverse Booste.r Pressure
This passage directs oil behind the reverse
heoster plug in Lime reesure regulatnr a 'to "cod
not he chocked ill tlmi.s di'agnusia procedure,
13. Reverse Cane Clutch i'istorl Apply
Air pressure applied inaL this passage should
actuate tlt*o reverse cone clutch piston. s pressore
is intermotoLitly applied, Enuvement of the clutch
piston should he audible and, in most cases, can
he felt by hoidiog t.he revcree internal ar with
free hanc
If an onu.saai amount of aIr is heard escaping
around the cane clutch pistoit, cithc.r tile outer or
inner seals ur both in the rever.so r.one assembly
are leaking. The unit should be disaeeoaibled end
hoth oil sea is reptaced,
14. vernor
Feed
It ta passage directs ataf ii Ii tic preestt te oti to
the governor and need no: be chocked a Lit.'s diag-
nosis procedure
13. Line Exhausl
This passage exhausts main line pressure whoa
the c.ngine a a med off and car is at a standstill
and need not he die eke d in this d is gnasi.s procedure
16. 1-2
oh:
This paseage directs main line pressure oil to
fast dump ye lye in rear servo and need not ho
checked in this diagnosis procedure.
I'
.
Procedure for
V
is ua I Al r Chock a I Ciai C IL
Hydraulics
a. Aasemble froni c hItch i e ton with seals and
expandcrs into frunt clutch drum end ia&tsiL Clutch
Piston Acttiaior, 'Foo No.
J
-4353-5, over piatan and
drama
I,.
Install rro,itunit drum andpietnn
tool, nato front end nf nil delIvery
Ring Cott:p rea:sor. Tool No. J-l 337.
,with actuator
sleeve, using
c. Aseeathle rear clutch ptetan with seals and
expsmmdors into rear clutch drumli amid Install Clutch
piston Actuttor, 'leo! No.
J
-4353-5, over piston
and drum.
d. losteli rear unit iruiaendpiston, with actuetor
tool, onto rear end ofoil delivery eocvo,using Ring
Fig, 14-4 Chec ki,,.j Clutch Hydraallci