Page 190 of 933
20
CLUTCH
Trepidation
(t he car starts “by fits”)
The sta te of the props
of the gearbox is checked
Oiled clutch, or clutch hav-
ing a beat
The fau lty parts are replaced.
The o rigin of the beat is elimi-
nated.
The pr ops are replaced and the tight-
ening of the gearbox fixing spots on
the engine is checked, and also the
fixing of the engine
Clutch pedal has a “creak”
The axis of the clutch
pedal is oiled
Pedal axis worn-out
The fau lty parts are replaced
NON-CONFORMING
NON-
CONFORMING
CONFORMING
D I A G N O STIC
20 - 8
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Page 197 of 933
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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Page 202 of 933
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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Page 206 of 933
CV JH3 - 05021
MANUAL GEARBOX
21 - 14
THE PRIMARY SHAFT
The primary shaft shall not be repaired and is not adjustable.
The shaft has a spry nozzle (B) which cannot be dismounted.
Clean the oiling – groove of the 5 th step
The oil seal ring in front of the shaft and the bearing cams are in direct contact with the shaft.
Check the state of the shaft in the opera tion area ( A) of the oil seal; ring, a nd if this shows
ridges or irregularities, it will be replaced.
REPLACING THE B EARINGS OF T HE PRIMARY SHAFT
The bearings of the primary shaft are freely mounted on it.
There are two types of bearings:
- a cylindrical one with balls , pressed into the crankcase of the mechanism;
- a cylindrical one with rolls , pressed into the crankcase of the clutch-differential, together
with the clutch shaft oil seal ring.
T he bearings replacement is performed only with identical bearings with the original ones.
GEARBOX DISMOUNTING
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Page 210 of 933

CV JH3 - 05021
MANUAL GEARBOX
21 - 18
SECONDARY SHAFT REASSEMBLING
Before reassembling the secondary shaft, perform the parts checking, as follows: - the pinions and claws tooth must not show chips or excessive wear;
- ensure that working surfaces of the shafts and the inner parts of the pinions do not show
traces of gripping or abnormal wear. When reassemblin g, clean the oiling grooves made in the secondary shaft and all its component
parts are pre – oiled. Take into consideration that synchroniser hubs are matched with the sliding.
It is recommended to mark the positions of the sliding compared to the hubs.
The stopping rings shall be replaced after every dismounting.
Reassembling of the secondary shaft shall be performing the dismounting operations in the
reverse order. The stopping rings
are replaced after each dismounting.
Fo r mounting and dismounting the stopping rings, a pair of safety pincers to keep t he ends
apart, and, on the opposite side, a pair of flat tipped pincers to prevent the stopping ring breaking,
are to be used.
GEARBOX DISMOUNTING
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Page 215 of 933
CV JH3 - 05021
MANUAL GEARBOX
21 - 23
DIFFERENTIAL ASSEMBLY MOUNTING IN THE CLUTCH CRANKCASE
The differential assembly is pressed into the crankcase, then the stopping safety device ( 3) is
mounted on the planetary shaft by means of the C.V. 946 device.
Rotate the differential assembly and check the speedometer pinion rotation.
Remounting of the C planetary oil seal ring is performed after this has been oiled, by means of
the C.V. 945 device and the A protector.
Mount the oiled protector A, on the planetary pinion and position the oiled seal ( C) by means
of the B device.
GEARBOX DISMOUNTING
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Page 222 of 933
CV JH3 - 05021
MANUAL GEARBOX
21 - 30
Mount the pin of the
5 th gear fork by means
the C.V. 31 01 device as for dismounting.
Observe the mounting direction, the pin slot
must be oriented towards the back c ap.
Bring the gearbox in the free position.
Mount a new gasket to ensure t he back cap
sealing. Mount the back cap with the A groove in the
primary shaft, and the oiling collector in the (B)
oil bringing groove, and tighten the screws at a
moment of 2,5 daNm .
Check the correct gears shifting.
Mount the reverse driving connector.
Mount the clutch control receiver cylinder and
tighten the screws at the required moment ( 2,1
daNm) .
GEARBOX DISMOUNTING
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Page 408 of 933

AIR CONDITIONING
62
62 - 1
GENERALITIES
GENERALITIES
The purpose of the a ir conditioning unit i s to produce a decrease of t he temperature in the
passengers compartment a nd to obtain a l ower value t emperature compared to the external
environment one, reducing in the same time the air moisture.
MAINTENANCE
For a vehicle equipped with air conditioning, it is recommended a frequent checking of the
refrigerating agent level. During the year it is recommended:
- the checking of the refrigerant fluid filling;
- the cleaning and the air-blowing of the condenser and the cooling radiator fins;
- the checking of the condensation removal pipe on order not to be clogged.
For important leakage repair, for any components replacement (compressor, condenser, etc)
and if moisture was noticed in t he air conditioning circuit, the dryer filter tank is to be replaced
and the unit draining is to be performed. The same is valid also in case the conditioning circuit
remains open without protection covers more than 10 minutes.
IMP ORTANT
Duri ng winter, it is recommended the frequent start of the system, in order to pro-
long the lifetime of the compressor and of the whole system.
The vehicle equipped with an air conditioning system shall be not exposed for more
than 20 minutes i n painting c abin where there are temperatures higher than 80 °C.
It is obligatory the use of the refrigerating agent and compressor oil type prescribed
by the manufacturer. It is absolutely forbidden to perform welding on the elements of the air condition
circ uits. The filling of the air conditioning system can be pe rformed only by m eans of charging
units and observing the instructions of the manufacturer. For mechanical or body
operations it is recommended pi ping protection in order to avoid their disconnection
by accident. Avoid the drip of the oil compressor on the painted vehicle body.
For component replacement implying the circuit draining, it is absolutely necessary
the use of new parts and of a special oil for compressor.
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