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354
FIAT - 850 PASSENGER CARS
by
road conditions, the vehicle takes over control
and no further action on gearshift lever is needed
until the car has reached the maximum speed
obtainable with the chosen gear. unless road or
traffic conditions become such as to require a
dif-
ferent gear ratio to obtain faster pick-up.
- 4th
gear (top): the vehicle may
be started in
4th gear to reach maximum speed gradually. This
gear is ideally suited to level road and highway
driving but may also be used for climbing.
-
3Id gear: 3Id is particularly useful in urban
traffic when signal lights, crossroads and heavy
traffic call for frequent stop-and-go driving.
With
respect to 4th gear it offers brisker pick-up.
3rd speed may be used also for hard climbing.
- 2nd gear: giving a lively acceleration and
maximum pick-up at
all
times. It is suitable for very
hard climbing.
-
1st gear: to be used as an emergency measure
only or when climbing on exceptionally steep hills.
To Stop the Car.
To stop the vehicle momentarily it is sufficient
to release the accelerator pedal completely and
depress the brake pedal without acting on the
gearshift lever.
However, if the car is to remain
stationary for a long period of time, it is advisable
to move the gearshift lever to the neutral position.
Emergency Starting.
Should the starter motor fail to operate, owing
to a discharged battery or any other reason, the
vehicle may be push-started as the action of the
torque converter is excluded by the uni-directional
clutch.
The gear to be inserted with a stationary
vehicle depends on road conditions as well as on
the power available to ensure sufficient vehicle
movement.
To start a vehicle parked up-hill with stationary
engine and gear inserted, it will be necessary to
close the starter motor inhibitor switch circuit i.e.,
move selector lever to neutral position.
As gear disengagement may be difficult owing
to the fact that the transmission is under pull
J
it is
preferable to leave the gear engaged and close
the starter motor inhibitor circuit by depressing
selector lever knob downwards slightly.
Parking on Gradients.
Pull handbrake fully upwards and select 1st gear
if vehicle is facing downhill, or reverse if uphill.
Engine Braking.
Engine braking is the same as on conventional
transmissions thanks to the torque converter uni-
directional clutch which cuts off the converter when
coasting.
MAINTENANCE
The only servicing operation required is that of
checking the oil level in the reservoir at every
6,000 miles (10,000 Ian) using dip-stick (I, fig. 573).
FIAT GlfM automatic transmission fluid (Type A,
Suffix A) is used.
Total transmission oil capacity
is approx..88 Imp. gals - 1.06 U.S. gals (4litres).
Oil level must always lie between
« Min
l)
and
«
Max
Ii
marks on dipstick.
Caution - Oil level should always be checked
with a cold and stationary engine.
N. B. - As lack of oil seriously lowers the efficiency
and shortens the life of the transmission, extreme
care should be taken to refit filler plug very ac-
curately to prevent leakage.
Refilling the Transmission.
Should the transmission have been emptied for
any reason, when refilling proceed as follows:
-
fill the reservoir up to maximum level;
- move gear selector lever to neutral position
and apply the handbrake;
-
start the engine allowing it to idle for about
10 minutes topping-up as oil level decreases;
- with engine running at idling speed, select
4th gear and cause the clutch to disengage several
times by gripping the lever knob;
- finally. top-up if necessary and repeat the
above operation.
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