Steering System
WARNING
Driving the vehicle without the power-assist
feature of the steering system requires much
greater effort, especially in sharp turns or at low
speeds, which could result in an accident and
possible injury.
NOTICE
Never steam clean or high-pressure wash the
steering gear. Internal damage to gear seals, and
ultimately the steering gear, can result.
NOTICE
Avoid turning the tires when they are against a
curb, as this places a heavy load on steering
components and could damage them.
The power steering system includes the power
steering gear, hydraulic hoses, power steering pump,
reservoir, steering wheel and column, and other
components.
Models equipped with dual steering are also
equipped with a separate hydraulic power cylinder on
the right side of the front axle or a right-hand
secondary gear.
The power steering pump, driven by the engine,
provides the power assist for the steering system. If
the engine is not running, there is no power assist.
If the power-assist feature does not work due to
hydraulic fluid loss, steering pump damage, or
another cause, bring the vehicle to a safe stop. Do
not drive the vehicle until the cause of the problem
has been corrected.
Drivers should carefully use the power available with
a power steering system. If the front tires become
lodged in a deep hole or rut, drive the vehicle out
instead of using the steering system to lift the tires
out of the hole.
Steering Wheel Adjustment Check
When there is no load on the vehicle and the front
tires are pointed straight ahead, the standard
steering wheel spokes should be at the 3 o’clock and
9 o’clock positions or within 10 degrees of these
positions. See
Fig. 12.1.
If the steering wheel is not in the position above
when checked, take the vehicle to an authorized
Freightliner dealership to have the steering adjusted.
f46236802/23/2022
10°
10°
10°
10°
12
1. 9 o’Clock 2. 3 o’Clock
Fig. 12.1, Steering Wheel Centered
Steering System
12.1
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