JAC Trucks. Service manual - part 3

Hazard warning lamp switch

Front fog lamp switch

Air conditioning compressor switch

Differential lock switch(if installed冤

Rear fog lamp switch

Fog lamp switch
Use the fog lamp when you go through the foggy area. Use the
fog lamp rotating the multi-use lever to 1 step when you are not
able to see well due to fog. While operating this switch, clearance
lamp, tail lamp, licence plate lamp, instrument lamps will come on
at the same time.
Depress the switch one more and the fog lamp will turn off.
Air compressor switch
When depress this switch, the air compressor of air condition will
begin to work. Depress the switch one more and the fog lamp will
stop.
Differential lock switch (if installed)
Depress the switch to lock the differential and check to see that
the Differential lock indicator light is on. Depress the switch again
to release the differential.
Lock the differential before driving on rough road. After getting
out of the rough road, be sure to release the differential .If it has
become impossible to move the vehicle and the differential is not
locked, stop the rear wheels and lock the differential immediately.

Search light switch渊only high cab冤

Horn convert Switch

P.T.O switch

Search light switch渊only high cab冤
Press this switch, the search light will be light
Horn convert Switch
When the air pressure is above 6kpa,press the horn of
the steering wheel, then the air horn will work
P.T.O switch
Press this switch , the P.T.O of special truck will work.

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JAC HEAVY DUTY TRUCK

TACHOMETER
The tachometer registers the speed of your engine in revolutions per minute
(rpm). It is useful to help you shift at the appropriate engine speed to avoid
lugging or over running.

CAUTION:
The engine should not be raced to such a speed that the needle enters the red
zone on the tachometer face. This can cause severe engine damage.

SPEEDOMETER
The speedometer indicates the vehicle speed in kilometers or miles per hour.
ODOMETER
The odometer records the total driving distance in kilometers or miles, and is
useful for keeping a record for maintenance intervals.

INSTRUMENT CLUSTER AND INDICATOR渊E域冤

1. Fuel gauge
2. Air pressure gauge
3. Water temperature gauge
4. Tachometer
5. Indicator light inspection switch
6. Speedometer
7. Voltage gauge
8. Oil pressure gauge

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JAC HEAVY DUTY TRUCK

WATER TEMPERATURE GAUGE
When the ignition switch is "ON", this gauge indicates the temperature of the
coolant. Under most driving conditions, the needle will remain at approximately
the halfway point. Stop and go driving, driving at high speeds during warm
weather or driving up a steep gradient may cause the pointer to move toward
the red sector. If your vehicle overheats, water lamp comes and the indicator
goes up. However when the quantity of coolant is below of the specification,
the warning buzzer will sound.
At this time, stop your vehicle immediately.

VOLTAGE GAUGE
The voltmeter indicates the battery state of charge. Check while the engine is
running. The pointer should always indicate between 20 and 30 volts.
If the pointer reads above 30 volts or below 20 volts, contact your nearest au鄄
thorized JAC dealer.

AIR PRESSURE GAUGE
The air pressure gauge indicates the air pressure in the air reservoir at all
times.
If the air pressure drops to below 6 kg/cm

, the air pilot light comes on and the

warning buzzer will sound at the same time. If fails to build up again, stop the
engine immediately and contact your authorized dealer.
CAUTION:
If the air pressure indicates the pressure that is below red zone do not drive the
vehicle. This is very dangerous.

FUEL GAUGE
The fuel gauge will indicate the approximate fuel level in the tank, when the ig鄄
nition is in the "ON"position.
The position of the pointer will vary slightly when accelerating, braking, or
when the vehicle is going up or down hill. So check your fuel supply when the
vehicle is more or less specified level, whether standing still or moving.

OWNER爷S MANUAL

JAC HEAVY DUTY TRUCK

INSTRUMENT CLUSTER AND INDICATOR渊E芋冤

1. Speed/odometer
2. Air pressure gauge
3. Oil pressure gauge
4. Tachometer
5. Water temperature gauge
6. Fuel gauge

OIL PRESSURE GAUGE
The gauge indicates the engine oil pressure while the engine is running.
If the gauge indicates below 0.5 kg/cm

, oil warning lamp comes on and

buzzerwill sound at the same time.
At this time stop the engine immediately and check the lubricating system.
NOTE:
Engine oil pressure when the engine is cold may go up above normal pressure.
If the engine Is warm,the gauge will Indicate normal pressure Immediately.
If the oil filter is clogged, the oil pressure warning light comes on but the buzzer
will not sound.

OWNER爷S MANUAL

JAC HEAVY DUTY TRUCK

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