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activated first after the parking brake is released or if
the air suspension control box is used.
If the temperature of the coolant is below 50°C when
the engine is started the engine speed will be limited to
1000 rpm for 15 seconds
Warming up
Warm the engine up by driving with low engine speed
rather than running the engine while stationary. Avoid
revving up excessively and high engine speed.
After starting let the clutch out in order to warm up the
gearbox. The oil pump in the gearbox will begin
working and will quickly attain working temperature.
Change idling speed
The preset idle speed can be altered between 550 rpm
and 650 rpm. When the truck is delivered, the idle
speed is normally 600 rpm. (To change the idle speed
temporarily, i.e. when the PTO is in use, see section
"Constant engine speed control")
Conditions:
• The temperature of the coolant should exceed 50°C.
• The truck should remain stationary with the engine
idling (the accelerator must not be depressed) when
the adjustment is begun.
Procedure:
1
Depress the brake pedal. The brake pedal should
be depressed during the entire procedure.
2
Hold B in RESUME for three seconds.
3
Release B.
Idling speed will fall to the lowest possible
setting.
4
Adjust engine speed with SET (A).
5
Hold B in RESUME and at the same time depress
SET (A) for more than three seconds.
Starting and stopping
Note!
It is especially important that the
gearbox should be warmed up if it
the outside temperature is below
0°C.
11
J0008305
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