ACURA TL 1995 Service Repair Manual

Steering Gearbo x
Remova l
NOTE: Us e solven t an d a brus h t o was h of f an y oi l an d
dirt fro m th e valv e bod y unit , it s lines , an d th e en d o f
the gearbox . Blo w dr y wit h compresse d air .
1. Drai n th e powe r steerin g flui d a s describe d o n pag e
17-24 .
2. Rais e th e fron t o f vehicle , an d suppor t i t o n safet y
stands in th e prope r locations , (se e sectio n 1 )
3 . Remov e th e fron t wheels .
4 . Remov e th e driver' s airba g assembl y an d steerin g
whee l (se e pag e 17-27 ).
5 . Remov e th e steerin g join t lowe r bol t fro m th e
engin e compartment , an d mov e th e join t towar d
th e column .
STEERIN G JOIN T
6.
STEERIN G JOIN T
LOWE R BOL T
Remov e th e cotte r pi n fro m th e castl e nut , an d
remov e th e nut .
12 m m HE X NU T
7. Instal l th e 1 2 m m he x nu t o n th e bal l joint .
Be sur e tha t th e 1 2 m m he x nu t i s flus h wit h th e bal l
joint pi n end , o r th e threade d sectio n o f th e bal l
joint pi n migh t b e damage d b y th e specia l tool .
NOTE : Remov e th e bal l join t usin g th e Bal l Join t
Remover , 2 8 m m (07MA C-SL00200 ). Refe r t o pag e
18-12 for ho w to us e th e bal l join t remover .
8. Separat e th e tie-ro d bal l join t an d knuckl e usin g th e
specia l tool .
CAUTION : Avoi d damagin g th e bal l join t boot . 9
. Disconnec t th e tw o line s an d tw o hose s fro m th e
valv e bod y uni t o n th e steerin g gearbox .
CAUTION : Afte r disconnectin g th e hos e an d line ,
plug o r sea l th e hos e an d lin e wit h th e piec e o f tap e
or equivalen t t o preven t foreig n material s fro m
enterin g th e valv e bod y unit .
NOTE : I t i s no t necessar y t o loose n th e cylinde r
line s A an d B betwee n th e valv e bod y uni t an d th e
cylinder .
SENSOR RETUR N LIN ETo th e reservoi r
RETURN HOS E
To th e reservoi r
PUMP OUTLE T LIN E
Fro m th e pum p
VALV E BOD Y UNI T
10.
SENSO R INLE T HOS E
T o th e powe r steerin g spee d senso r
Remove th e splas h guard .
NOTE : Som e splas h guar d mountin g bolt s ar e als o
use d
as gearbo x mountin g bolts. The gearbo x will
til t
to th e sid e whe n thes e bolts are removed .
GEARBO X MOUNTIN G
BOLT S
SPLAS H GUAR D
SPLAS H GUAR D
MOUNTIN G BOLT S
BALL JOIN T REMOVER ,28 m m07MA C-SL0020 0
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Steering Gearbo x
Remova l (cont'd )
11. Unloc k th e pip e clamps , an d remov e th e senso r lin e
fro m th e rea r beam .
PIPE CLAMP S
SENSO R LIN E
SENSOR LIN E
ATTACHIN G BOL T
12. Remov e th e righ t mountin g bracke t an d steerin g
gearbox .
NOTE : Befor e removin g th e gearbox , plac e a jac k
stan d unde r th e gearbox .
CAUTION : B e carefu l no t t o ben d o r damag e th e
cylinde r line s A an d B whe n removin g th e steerin g
gearbox .
RIGHT MOUNTIN GBRACKET STEERIN
G GEARBO X
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Disassembly
Steering Rac k Disassembl y
NOTE:
• Befor e disassemblin g th e steerin g gearbox , was h i t
of f wit h solven t an d a brush .
• D o no t di p seal s an d O-ring s i n solvent .
1 . Remov e th e steerin g gearbo x (se e pag e 17-47 ).
2 . Remov e th e ai r tub e an d pip e clamps .
PIPE CLAMP S
AIR TUB E
3. Remov e th e tie-ro d en d an d locknut .
4 . Remov e th e boo t band s an d tie-ro d clips . Pul l th e
boot s awa y fro m th e end s o f th e gearbox.
BOO T BAN DReplace .
BOOTTIE RO D CLI P
5. Hol d th e steerin g rac k wit h a wrench , an d unscre w
th e rac k en d wit h another .
CAUTION : B e carefu l no t t o damag e th e rac k surfac e
wit h th e a wrench .
STEERIN G RAC K EN D
LOC K WASHE RReplace.
6. Loose n th e locknu t an d remov e th e rac k guid e
screw .
7 . Remov e th e sprin g an d rac k guid e fro m th e gearbo x
housing .
RACK GUID ESCRE W
RACK GUID E
SPRIN G
LOCKNU T
O-RINGReplace .
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Steering Gearbo x
Disassembl y (cont'd )
8. Remov e th e cylinde r line s A an d B fro m th e gear -
box.
CYLINDE R LIN E B
CYLINDE R LIN E A
9. Drai n th e flui d fro m th e cylinde r fitting s b y slowl y
movin g th e steerin g rac k bac k an d forth .
10 . Remov e th e tw o flang e bolts , the n remov e th e valv e
bod y uni t fro m th e gearbox . (Se e pag e 17-5 2 fo r
valv e bod y uni t disassembly. )
VALVE BOD Y UNI T
FLANG E BOL T
O-RIN G
Replace .
11. Dril l a 3 mm (0.1 2 in ) diamete r hol e approximatel y
2. 5 - 3. 0 m m (0.1 0 - 0.1 2 in ) i n dept h in th e staked -
poin t o n th e cylinder .
NOTE:
• D o no t allo w meta l shaving s t o ente r th e cylinde r
housing .
• Afte r removin g th e cylinde r end , remov e an y
burr s a t th e stak e point .
STAKE D POIN T
CYLINDE R EN D
12. Instal l th e specia l too l t o th e steerin g gearbo x hous -
ing . Clam p th e specia l too l i n a vis e wit h sof t jaw s
a s shown , the n loose n an d remov e th e cylinde r
end.
CAUTION : D o no t clam p th e cylinde r housing .
PULLER YOKE :
(Commerciall y available )
Snap-On® T/NCJ123- 1OTC® T/ N 737 2or equivalen t
CYLINDER EN D
STEERIN G GEARBO X HOUSIN G
SHIMS
Depth : 2. 5 - 3. 0 m m(0.10-0.1 2 in )
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13. Se t th e steerin g gearbo x i n a pres s s o th e gearbo x
housing point s upward .
14. Pul l th e steerin g rac k awa y fro m th e gearbo x hous -
ing , the n inser t th e specia l too l int o th e rac k guid e
hol e a s shown .
CYLINDE R EN D SEA LREMOVE R ATTACHMEN T
07NA D-SR3020 A
RAC K GUID E HOL E
STEERIN G RAC K
15. Inser t a 6 " long , 3/8 " driv e extensio n int o th e spe -
cial tool .
16. Pres s th e cylinde r en d sea l an d steerin g rac k ou t o f
th e gearbox .
NOTE : Hol d th e steerin g rac k t o kee p i t fro m fallin g
whe n presse d clear .
CAUTION : B e carefu l no t t o damag e t o inne r sur -
fac e o f th e cylinde r housin g wit h th e tools .
6" LON G 3/8 " DRIV E EXTENSION :(Commerciall y available )
Press
CYLINDE R EN D SEA L
REMOVE R ATTACHMEN T
07NA D-SR3020 A
STEERIN G GEARBO X
STEERING RAC K
CYLINDE R EN D SEA LReplace .
17. Remov e th e tool s fro m th e steerin g rack .
18 . Remov e th e cylinde r en d sea l fro m th e steerin g
rack.
CYLINDE R HOUSIN G
CYLINDE R EN D SEA L
Replace. "
STEERIN G RAC K
19. Inser t a 24 " long , 3/8 " driv e extensio n an d th e spe -
cia l too l int o th e cylinde r fro m th e gearbo x side .
CAUTION : B e carefu l no t t o damag e th e insid e sur -
fac e o f th e housin g wit h th e tools .
Press
24" LON G 3/8 " DRIV E EXTENSION :(Commercially available )
20.
CYLINDE R EN D SEA LREMOVE R ATTACHMEN T
07NA D-SR3020 A
BACKU P RIN GReplace .
CYLINDE R EN D SEA LReplace .
Set th e steerin g gearbo x i n a press , the n pres s ou t
the cylinde r en d sea l an d backu p rin g fro m th e
gearbox .
CAUTION :
• Kee p th e too l straigh t t o avoi d damagin g th e
cylinde r wall . Chec k th e too l angle , an d correc t i t
i f necessary , whe n removin g th e cylinde r en d
seal .
• Us e a pres s t o remov e th e cylinde r en d seal . D o
no t tr y t o remov e th e sea l b y strikin g th e tool . I t
wil l brea k th e backu p ring , an d th e cylinde r en d
sea l wil l remai n in th e gearbox .
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Steering Gearbo x
Disassembl y (cont'd )
21. Chec k th e rubbe r sto p fo r damag e o r deterioratio n i f
OK , g o o n ste p 22 ; i f not , replac e th e rubbe r stop ,
ste p a s show n below :
Remov e th e rubbe r sto p b y pryin g i t ou t o f th e gear -
box housin g wit h a fla t ti p screwdriver .
CAUTION: Protec t th e pr y poin t o n th e gearbo x
housin g wit h sho p towel .
FLAT TI P SCREWDRIVE R
RUBBER STO P
GEARBO X HOUSIN G
Shop towe l
Cut-ou t
RUBBE R STO PReplace .
22. Carefull y pr y th e pisto n sea l rin g an d O-rin g of f th e
rac k piston .
CAUTION : B e carefu l no t t o damag e th e insid e o f
sea l rin g groov e an d pisto n edge s whe n removin g
th e sea l ring .
O-RIN GReplace .
PISTON SEA L RIN GReplace .
Valve Bod y Uni t Disassembl y
Valve bod y unit :
23 . Remov e th e pinio n dus t cover .
VALVE BOD Y UNI T
PINIO N DUS TCOVE R
24. Befor e removin g th e valv e housing , appl y viny l tap e
t o spline s o f th e pinio n shaft .
25 . Separat e th e valv e housin g fro m th e pinio n shaft /
valv e usin g a press .
Vinyl tap e
Pres s
PINIO N SHAF TVALVE HOUSIN G
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26. Check the inner wall of the valve housing where the

seal ring slides with your finger. If there is a step in

the wall, the valve housing is worn. Replace the

valve housing.

NOTE:

• There may be the sliding marks from the seal

ring on the wall of the valve housing. Replace

the valve housing only if the wall is stepped.

• When the valve housing is replaced, install new

32 mm shim(s) on the bearing surface of the

housing to adjust the thickness.

Check the inside of valve housing

whether the wall is stepped.

27. Check for wear, burrs and other damage to the

edges of the grooves in the sleeve.

NOTE: The pinion shaft and sleeve are a precision

matched set. If either the pinion shaft or sleeve

must be replaced, replace both parts as a set.

SLEEVE SEAL PINGS

Check for peel off and

damage.

SLEEVE

Check for damage.
28. Remove the circlip and pinion shaft sleeve from the

pinion shaft.

CIRCLIP

Replace.

PINION SHAFT

SLEEVE

29. Using a cutter or an equivalent tool, cut and remove

the four seal rings from the sleeve.

CAUTION: Be careful not to damage the edges of

the sleeve grooves and outer surface when remov-

ing the seal rings.

SLEEVE

SLEEVE SEAL RINGS

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Steering Gearbo x
Disassembl y (cont'd )
30. Usin g a cutte r o r a n equivalen t tool , cu t th e valv e
seal rin g an d O-rin g a t th e groov e th e pinio n shaft .
Remov e th e valv e sea l rin g an d O-ring .
CAUTION : B e carefu l no t t o damag e th e edge s o f
th e pinio n shaf t groov e an d oute r surfac e whe n
removin g th e valv e sea l rin g an d O-ring .
Cutting slot position .
VALVE SEA L RIN G
Replace .
31. Remov e th e valv e oi l sea l an d backu p rin g fro m th e
pinio n shaft .
NOTE:
• Inspec t th e bal l bearin g b y rotatin g th e oute r
rac e slowly . I f ther e i s an y excessiv e play , re -
plac e th e pinio n shaf t an d sleev e a s a n assem -
bly.
• Th e pinio n shaf t an d sleev e ar e a precis e fit ; d o
no t intermi x ol d an d ne w pinio n shaft s an d
sleeves .
PINION SHAF T
BACKU P RIN G
VALVE OI L SEA L
Replace .
32. Pres s th e valv e oi l sea l an d rolle r bearin g ou t o f th e
valv e housin g usin g a hydrauli c pres s an d th e spe -
cia l too l show n below .
VALVE OI L SEA L
Replace .
Press.
PILO T COLLA R
07GAF-PH7010 0
ROLLER BEARIN G
Replace .
Assist contro l valv e unit :
33 . Remov e th e ca p fro m th e valv e body .
34 . Remov e th e ca p sea l fro m th e cap .
VALV E BOD Y
CAP
CAP SEA L
Replace .
O-RIN
G
Replace .
BAL L BEARIN G
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35. Remov e th e pressur e contro l valve , assis t contro l
valv e an d spring s fro m th e valv e body .
SPRIN G
ASSIS T CONTRO L
VALVE
SPRIN G
PRESSUR E CONTRO L VALV E
36. Chec k th e tw o contro l valves .
NOTE : I f th e valve s ar e damaged , replac e th e steer -
in g gearbo x a s a n assembly .
Assis t Contro l Valve :
• Inspec t it s surfac e fo r scorin g an d scratches .
• Sli p i t bac k int o th e valv e bod y unit , an d mak e
sur e it slide s smoothl y withou t dra g o r sid e play .
ASSIS T CONTRO L VALV E
Chec k fo r scorin g an d
scratches , an d roug h
operation .
Pressure Contro l Valve :
• Inspec t it s surfac e fo r scorin g an d scratches .
• Sli p i t bac k int o th e valv e bod y unit , an d mak e
sur e i t slide s smoothl y withou t dra g o r sid e pla y
PRESSUR E CONTRO L VALV E
Chec k fo r scorin g an d scratches ,
and roug h operation .
37. Separat e th e valv e bod y an d valv e housing .
38 . Remov e th e housin g sea l an d dowe l pin s fro m th e
valv e bod y unit .
VALV E HOUSIN G
DOWE L PIN S
VALV E BOD Y
HOUSIN G SEA L
Replace .
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Steering Gearbo x
Reassembl y
NOTE:
• Clea n th e disassemble d part s wit h a solvent , an d dr y the m wit h compresse d air . D o no t di p th e rubbe r part s in a sol -
vent .
• Alway s replac e th e O-ring s an d rubbe r seal s wit h ne w one s befor e assembly .
• Appl y th e recommende d powe r steerin g flui d t o th e part s indicate d i n th e assembl y procedures .
• D o no t allo w dust , dirt , o r othe r foreig n material s t o ente r th e powe r steerin g system .
• Us e th e appropriat e specia l tool s wher e necessary .
FLANGE BOL T
9 N- m (0. 9 kgf-m , 6. 5 Ibf-ft ) FLANG
E BOL T
2 0 N- m (2. 0 kgf-m , 1 4 Ibf-ft )
PINIO N DUS T COVE R
CYLINDE R HOUSIN G
PISTO N SEA L RIN G
Replace . CIRCLI
P
Replace .
SLEEV E SEA L
RING S
Replace .
SLEEV E
O-RIN G
Replace .
VALV E SEA L RIN G
Replace .
VALV E OI L SEA L
Replace .
BACKUP RIN G
PINIO N SHAF T
SHIMS
CYLINDE R EN D
6 9 N- m (7. 0 kgf-m , 5 1 Ibf-ft )
STEERIN G RAC K
CYLINDER EN D SEA L
Replace . BACKU
P RIN G
Replace .
ASSIST CONTRO L
VALV E
VALVE BOD Y VALV
E HOUSIN G
VALV E SEA L RIN G
Replace .
ROLLE R BEARIN G
Replace .
O-RIN G
Replace .
SPRIN
G
CAP
CA P SEA L
Replace .
HOUSING SEA L
Replace .
CYLINDE R LIN E B
20 N- m (2. 0 kgf-m , 1 4 Ibf-ft )
RUBBE R STO P
Chec k fo r damag e o r
deterioration .
LOCKNUT
GEARBO X HOUSIN G
RACK GUID E SPRIN
G
O-RING
Replace .RAC
K GUID E SCRE W
PRESSUR
E CONTRO L
VALV E
2 6 N- m (2. 7 kgf-m , 2 0 Ibf-ft )
CYLINDE R LIN E A
O-RIN GReplace .
CYLINDE R EN D SEA L
Replace .
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