JAC HFC4181KR1 Owner's Manual page 43

OWNER ' S MANUAL
JAC HEAVY DUTY TRUCK
6. Slowly release the accelerator pedal and turn the fuel button in the direction
of 'H" to set the engine speed slightly higher than the idling speed. Allow the
engine to warm up for over five minutes until the coolant temperature is raised.
Engine warm up is required for circulating oil
raising coolant temperature for proper combustion.
CAUTION:
Do not race the engine during the warm up period, as it could be detrimental to
the engine.
7. During the warm up operation, check to ensure that the gauges and meters
are performing properly.
8. After the engine warm up operation is over turn the fuel button in the direc鄄
tion of "L' until the engine runs smoothly at idle speed. For the idle speed, see
section Ⅱ.
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throughout the engine and
STARTING AND STOPPING THE ENGINE FOR TURBO CHARGER (If installed)
1. Do not race the engine or sudden accelerate the engine immediately after start it. If the engine is cold, allow the en鄄
gine to idle for several seconds before it is driven to ensure sufficient lubrication of the turbo charger unit
2. After high speed or extended driving, requiring a heavy engine load, the engine should be allowed to idle, as shown
in the chart below, before turning it off. This idle time will allow the turbo charger to cool prior to shutting the engine off.
Driving Condition
Normal driving
Up to 80km/h
High speed driving
Up to 100km/h
Steep mountain slopes or continued driving in excess or 100km/h
WARNING:
Do not turn the engine off immediately after it has been subjected to a heavy load. Doing so may cause severe damage
to the engine or turbo charger unit.
Required Idle Time
Not necessary
About 20 seconds
About 1 minute
About 2 minute
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