Peterbilt 220, Operator'S Manual

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Technical Items of Special
Importance
To prevent damage to the vehicle, the
following instructions must be strictly
observed.
Running-in
During the running-in period it is best not to
subject the new vehicle to excessive loads.
This also applies when an overhauled
engine, transmission or differential has
been installed. Therefore, for the first 932
miles (1,500 km): drive carefully and avoid
accelerating sharply.
The following technical items of special
importance applies to both the running-
in period and to the period thereafter.
After a cold start continue to drive in a
low gear and at a moderate engine speed
until the engine coolant temperature is out
of the blue zone.
While driving, check the instrument panel
regularly and take appropriate action if you
notice anything unusual, such as strange
engine or transmission noises, smoke, or
poor performance. Do not let the engine
idle for longer than necessary. This is
harmful to the engine and also causes
unnecessary pollution of the environment.
Be aware that engine stalling while
driving will lead to power steering failure.
Consequently, the vehicle will be more
difficult to steer.
The engine cooling system is
thermostatically controlled.
Removing the thermostat when the
coolant temperature is (too) high serves no
useful purpose and is strongly advised
against, since this will only cause the
engine temperature to rise to an even
higher level.
The turbocharger is a precision
component. You should therefore
immediately report any abnormal noise that
seems to be coming from this component.
Air Leakage
If the pressure in the air reservoirs drops
rapidly with the engine switched off, this
indicates a leak. Since this affects the
safety of the brake system, the leak must
be traced and repaired as quickly as
possible.
System Voltage
The cab system of this vehicle are on 24-
Volt while other areas remain 12-Volt.
When replacing or fitting electrical or
electronic components, always verify that
they are suitable for this system voltage.
Batteries
WARNING
Never disconnect the battery leads
while the engine is running!
Always disconnect the battery negative
(ground) lead before carrying out repairs or
service on the electrical system.
SAFETY - Technical Items of Special Importance
12 Y53-6078-1B1 (12/18/18)
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