2004 DACIA SUPERNOVA gearbox

CV JH3 - 05021
MANUAL GEARBOX
21 - 3
TIGHTENING MOMENTS
DESCRIPTION
A
ttachment screws of the mechanism crankcase on the clutch –
di fferential case
S econdary shaft screw
Primary shaft nut
Back cap fixing screws
Oil draining plug
R everse driving contact
S crews for fixing the bellows – left transmission cap assembly
Screws for fixing gearbox on engine case (M10 – 90)
Screws for fixing gearbox on engine case (M10 – 35)
S crews for fixing gearbox on engine
LOCTOU fixing screw
Screws for fixing the RPM sensor on the clutch c ase
S crews for fixing the control axle assembly
S crews for fixing hydraulic receiver on clutch case MOMENT
(daNm)
2,57
19
2,5
2,5
2,5
2,5
4,4
2,1
4,4
0,5
0,8 2
2,1
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CV JH3 - 05021
MANUAL GEARBOX
21 - 4
RATIOS
GEAR STEP
I II III IV V M.I.
NR.OF TEETH 41/11 43/21 39/28 35/34 31/39 39/11
RATIO 3.727 2.048 1.393 1.029 0.795 3.545
GB INDEX VEHICLE MAIN MILEAGE
TRANSMISSION GEARING
JH3-05 SupeRNova 15/56 21/19
RATIOS
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CV JH3 - 05021
MANUAL GEARBOX
21 - 5
CAPACITY , LUBRICANTS
Oil used : 75 W – 80 W; API GL5.
The qu antity of oil needed for the gearbox operation is 3. 5 liters .
Th e oiling of the gearbox parts is done by splash lubrication.
Checking of the oil level is done through the filling plug A.
CAPACITY , LUBRICANTS
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CV JH3 - 05021
MANUAL GEARBOX
21 - 6
PARTICULARITIES
The gears grid is similar to that of the gearboxes previously mounted on the DACIA
SupeRNova vehicles, the only difference being the reverse driving, which is located on the right
s ide and backwards.
The synchronizers are BORG – WARNER type.
The synchronizing hub – sliding collar, and the synchronizing hub – shaft assemblies are com-
posed of matching parts . The synchronizing hubs are freely mounted on the secondary shaft and are maintained axially
through safety devices of the ring type. The cylindrical moment of the differential is not adjustable.
The differential assembly is supported on the gearbox crankcases by means of the bearings.
The primary and secondary shafts support at the clutch side is done by means of roll – bear-
ings, which get into direct contact with the shaft (the bearings do not have inner ring, its purpose
being taken over by the shafts). The reverse driving pinion is delivered mounted on the shaft. PARTICULARITIES
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CV JH3 - 05021
MANUAL GEARBOX
21 - 7
TYPEUSE
Molykote “BR 2” Grooves of the differential planetary pinion
Crankcase assembling
Loctite 518 Thread of reverse driving contact
Grooves of fixed pinion of 5 Th gear
Grooves of 5 Th gear hub
Loctite FRENBLOC Primary shaft nut
Secondary shaft screw
INGREDIENTS
IN
GREDIENTS
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CV JH3 - 05021
MANUAL GEARBOX
21 - 8
PA
RTS OF SYSTEMATIC REPLACEMENT
The following parts shall be replaced, if they have been dismounted: - oil seal rings;
- fastening rings;
- elastic pins;
- primary shaft nut
- the bushing under the pinion of the 5 – th step;
- the outer safety devices of the bearings of the primary and the secondary shafts;
- the ga skets. PA
RTS OF SYSTEMATIC REPLACEMENT
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CV JH3 - 05021
MANUAL GEARBOX
21 - 9
N
ECESSARY SPECIAL TOOLS
C. V. 22-01 Bearings extractor body
C. V. 945 Chuck for mounting the right planetary pinion oil ring
C. V. 946 Chuck for safety mounting
C. V. 551 Device for mounting/dismounting bearings of mechanism casing
C. V. 949 Device for mounting and taking apart the elastic pins of the forks
C. V. 1000 Extractor for the fi xed pinion of the 5 th step of the secondary shaft
C. V. 1059 Bushing kit for mounting/dismounting the differential bearings
C. V. 1 170 Hub extractor of the 5 th step on the primary shaft
C. V. 1 175 Screw for mounting the fixed pinion 5 th step
C. V. 552 Device for e xtracti ng the bearing of the secondary shaft on the
clutch – differential crankcase.
C. V. 31-01 Set of punches for elastic pins F 5
C. V. 1 162 Chuck for replacing command axle bushings
C. V. 553 Device for dismounting – remounting the clutch shaft bearing
C. V. 554 Bushing for depressing the differential case assembly from the
differential crankcase.
SPECIAL TOOLS
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CV JH3 - 05021
MANUAL GEARBOX
21 - 10
OBSERVATION :
The dismounting and checking of t he spare parts must be done on a surface coated
with rubber or soft plastic. Before taking apart the gearbox from the vehicle, drain the oil from the gearbox.
DISMOUNTING
Dismou nt :
- hydraulic receiver cylinder;
- the screws locate inside the crankcase.
Dismounting the cap attachment screws.
Th e back cap of the gearbox is extracted so that its setting surface should stay parallel to the
c onjoined surface of the gearbox, because this cap contains an oiling groove situated in the cylinder
bore of the primary shaft.
GEARBOX DISMOUNTING
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