JAC S1. Service manual — part 10

Drive economically
Drive as instructed below and you
can save fuel and drive longer dis鄄
tance.
音 Run the vehicle steadily. Acceler鄄
ate the vehicle slowly after starting.
Never start or change throttle harsh鄄
ly. Drive at steady speed. Never race
against a traffic light. Adjust the
speed to the traffic rules to avoid
frequent change of speed. Avoid
blocking the road and keep space
between vehicles.
音 Run your vehicle at ordinary
speed. The higher speed, the more
fuel consumed. Run at ordinary
speed except on expressway. This is
the best method to save fuel.
音 Unless necessary, do not keep

your foot on the braking pedal during
driving, as this will cause unneces鄄
sary wearing and even damage to
the brake and increased fuel con鄄
sumption.
音 Adjust the tire pressure to the val鄄
ue recommended by manufacturer.
This can help extend the service life
of tires and get the optimum fuel
consumption.
音 Excessive rolling of wheels when
not properly positioned will result in
rapid wearing of tires and waste of
fuel.
音 To save fuel and reduce mainte鄄
nance cost, have the vehicle ser鄄
viced as per the maintenance sched鄄
ule in the following section. The ve鄄
hicle will need more completion

maintenance when it often runs on
roads other than normal highway.
音 Clean the vehicle frequent and
keep it clean. Pay special attention to
thoroughly remove the deposited
mud, dirt or ice. Such things will in鄄
crease the weight of your vehicle,
consume more fuel or cause corro鄄
sion.
音 Never run the vehicle with unnec鄄
essary objects loaded. A lighter ve鄄
hicle consumes less fuel.
音 Never keep the engine idling over
long time. During wait time (exclud鄄
ing wait at red light), turn off the en鄄
gine and start the engine again when
running the vehicle.
音 Avoid idling for warm-up purpose
over long time. The vehicle can be

Driving your vehicle

70

run just when the engine is running
smoothly. The warm-up time may be
longer only in cold days.
音 Never overload the engine, as this
will force the engine to rotate at ex鄄
cessively high speed. In this case,
shift to a lower gear. Running the en鄄
gine over speed will render it unable
to function normally.
音 Use the air conditioning properly.
The power for the air conditioning
system is provided by the engine,
therefore using the air conditioning in
an economic way can save fuel.

Turning

Avoid using brake or shifting gear at
turning. Except in rainy condition,
make turns at ordinary speed when鄄
ever possible. Following this sug鄄

gestion can minimize the wearing of
tires.

Driving in snow

Driving in snow may accelerate tire
wearing or cause other faults.To mini鄄
mize faults when driving in snow, fol鄄
lowing the instructions below.

Methods to deal with snow and
ice

To drive in deep snow, anti-slip tires
must be used, or chains have to be
fitted on tires. When an anti-slip tires
are to be used, those with size and
structure conforming to the tire pres鄄
sure specification must be selected.
Improper installation may affect driv鄄
ing safety. Driving at extra high
speed, sudden acceleration, emer鄄
gency braking and turning are ex鄄

tremely dangerous. Make full use of
engine braking function at decelera鄄
tion. Emergency braking on a road
with snow or ice may cause slippery.
Keep a proper space from the vehi鄄
cle in front to avoid emergency
braking. When chains are fitted, step
on the braking pedal slightly, to keep
your vehicle balanced, but this can鄄
not prevent slipping to the side.

Use high quality ethylene glycol
cooling liquid.

High quality ethylene glycol cooling
liquid should be used for the cooling
system of your vehicle. This cooling

Note院
音 Please use the tire chains
with caution.

71

liquid can prevent corrosion to the
cooling system, lubricate the pump
and prevent freezing. Determine the
glycol content with reference to the
maintenance schedule in relevant
section, and perform replacement or
makeup when necessary.

Check battery and wires

Extra load will be imposed to the
battery system in winter. For methods
to check the battery and wires, refer
to relevant sections. The battery volt鄄
age should be checked by personnel
of the authorized JAC dealer or ser鄄
vice stations.

Replace engine oil "for winter"

In winter, we recommend you using
low -viscosity engine oil for winter.
For details, see relevant sections. If

you cannot determine which type of
engine oil should be used, consult a
JAC dealer.

Check spark plug and ignition
system

Refer to relevant sections for check
of spark plug, and replace it when
necessary. Check all the ignition
wires and accessories, and deter鄄
mine if there is any cracking, wearing
or damage.

Prevent lock from freezing

To thaw the frozen lock, inject into
the key hole the anti -freezing liquid
ethylene glycol. If the key hole is
covered by snow, the ice can be re鄄
moved immediately by injecting the
anti-freezing liquid. If it is frozen in鄄
side, it should be thawed with a pre-

heated key. Take care to avoid
scalding your hand when using a
pre-heated key.

Prevent freezing of window glass
cleaner

To prevent freezing of window glass
cleaner, use an anti -freezing liquid
permitted in the instruction manual.
JAC dealer can supply you with an鄄
ti-freezing liquid for glass cleaner.
Never use an anti-freezing liquid for
engine or of other types.

Prevent freezing of parking

Note院
音 The temperature range of the
key is -40益 ~ 80益. A key with
temperature over 80益 may
damage the trans-receiver.

Driving your vehicle

72

brake

In the following cases, your parking
brake may be frozen in operating
conditions. When there is snow or ice
deposited near or around the parking
brake, and when the brake is wet, it
can be frozen. If there is the possi鄄
bility of freezing, set the shift gear to
the reverse position (manual trans鄄
mission) tentatively and block the
rear wheels to prevent rolling. Now
the parking brake can be released.

Never allow ice or snow to de鄄
posit at the bottom.

In some cases, snow and ice can
accumulate at the lower end of the
fan to prevent operation. This may
occur in winter. The bottom of the
vehicle should be checked periodi鄄

cally, and the rotating condition of
the front wheels and steering wheel
components should be determined.

Emergency devices and tools

Some emergency devices and tools
must be brought as appropriate ac鄄
cording to weather conditions, such
tools as tire chains, towing hooks
and chains, flasher, sand, spade,
jumper cable, window scrapper,
gloves, ground cloth, working cloth鄄
ing and rug must be carried at all
times.

Driving at high speed

Check before driving
1. Tires:
Regulate the tire pressure to stan鄄
dard value. Low pressure will over鄄
heat and damage tires. Avoid using

worn or damaged tires.

2. Fuel:
Engine cooling liquid and engine oil:
the fuel consumption of vehicle run鄄
ning at extra high speed will be 1.5
times that when running at normal
speed. Never forget to check the en鄄
gine cooling liquid and engine oil.
3. Driving belt
A loosened or damaged driving belt
can cause overheating of the engine.

Method to use vehicle lights

For correct operation of vehicle
lights, the headlights must be
checked and cleaned periodically.

Note院
音 Never use a tire with pres鄄
sure exceeding the max. value.

73

Use the low beam lights when driv鄄
ing in a low visibility condition.

Towing and trailing

If you cannot determine the method of
towing, first check relevant regulations
on towing in your area before deter鄄
mine the towing method, as different
laws are applied for the personnel, ve鄄
hicle or devices used for towing in dif鄄
ferent areas. Consult the JAC dealer
for detailed procedures of towing.

Hooking

Select an appropriate hook, deter鄄
mine the accurate position of hook鄄
ing, use lateral control hook and bal鄄
ance the weight of the trailer. The
hook must be firmly fastened with
vehicles, and should be installed by
technical personnel. Never use a
disposable hook or a hook that can
only be used on the bumper.

Trailer braking system

If your trailer is provided with a brake
system, read the instructions of the
trailer brake system carefully and ob鄄
serve them, to correctly fit and oper鄄
ate this system.

Caution院
音 Never attempt to tow a vehi鄄
cle during the first 2,000km of
your vehicle, as the engine is in
run-in period. Towing may seri鄄
ously damage the engine or the
transmission.

Note院
音 If a hook is used for towing,
the vehicle should be main鄄
tained frequent as per relevant
laws and regulations.

Caution院
音 Never connect the brake of
the trailer with that of your vehi鄄
cle.
音 When towing up a steep
slope, check the engine water
temperature thermometer and
the engine for overheating. If the
thermometer indicates "H" (hot),
keep space and immediately
park at a safe place.

Driving your vehicle

74

Safety chains

Safety chains must be fitted between
your vehicle and the trailer.
These safety chains must be cross
locked below the tongue of the trail鄄
er, so that the tongue will not drop on
the road even if it is disengaged
from the hook.

Weight of trailer

The weight of the trailer is adjusted
by adding or reducing the number of
tongues.

Check the total weight of the trailer
and the weight of the tongues.

Weight of tongues Total weight of trailer

Note院
音 1. The weight of the rear part
of the vehicle must not exceed
that of the front part. Over 60%
of the weight must be on the
front half of trailer and the re鄄
maining 40% on the rear half.
2. The total weight of the added
trailer must not exceed the
gross

vehicle

weight

ratio

(GVWR). The total weight in鄄
cludes the weight of the vehicle,
the driver and all passengers,
goods, hook, tongues and other
equipment.
3. The weight of the front and

rear axles must not exceed the
gross axle weight ratio (GAWR).
Under normal conditions, the
trailed goods cannot exceed
GVWR but can exceed GAWR.
Improper trailer weight and ex鄄
cessive load of goods can
cause overloading of the rear
axle. Distribute the weight again
and check the axle weight a鄄
gain.
4. The maximum vehicle weight
limit at static condition is:
Gasoline 2.0: 80kg
5. The highest height of suspen鄄
sion coupling point is 1092mm.

75

Unit: kg

Main points of trailing or tow鄄
ing

1. Check the hook, safety chains,
lights and turning signals before tow鄄
ing.
2. Run the vehicle at a steady speed
(below 100km/h).
3. Towing consumes more fuel than
under normal conditions.
4. Keep good functioning of the en鄄
gine brake and electronic connec鄄
tors, and never use the fifth gear
(manual transmission).
5. Prevent the movement of loaded
goods when the vehicle is running.
Confirm the articles from time to time.
6. Check the tire pressure of trailer
and your vehicle. Low pressure may
affect driving. Also check the spare

Overall axle weight

Overall vehicle

weight

Coupling

point

Caution院
音 Following is relevant instruc鄄
tions on towing. The weight of
trailers must not exceed the
scope shown in the table.

Maximum range of towing weight

Engine

Trailer

Tongues

With

brake

2.4(4WD)

1650

80

Without

brake

2.4(4WD)

700 with

ABS: 750

28

Warning院

音 An overloaded trailer may
seriously affect your driving and
braking operations, and result in
collision, which may seriously in鄄
jure your body and even cause
death.

Driving your vehicle

76

tires.
7. A vehicle with a trailer is more like鄄
ly to be affected by side wind and
external collision.
8. Follow the normal method for
parking your vehicle and trailer, es鄄
pecially on a downward slope. Turn
the front wheels of your vehicle to鄄
wards the road side, set the parking
brake and set the shift lever to 1st
gear or reverse (manual). Also set a
block at each wheel.
9. For a trailer equipped with elec鄄
tronic brakes, start your vehicle and
use the brake controller of the trailer,
and also check the electronic con鄄
nectors.
10. During driving, confirm from time
to time if the loaded goods on the

trailer are properly fastened, and the
lights function normally with brakes.
11. Avoid emergency start, accelera鄄
tion or stopping.
12. Avoid sharp turns and changing
lanes.
13. Avoid stepping on the braking
pedal over long time. This will over鄄
heat the brake and lower its function.
14. When running down slope, set to
a low gear and use the brake device
of engine. When running up slope,
set to a low gear and reduce the
speed to avoid overheating the en鄄
gine.

77