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Peterbilt 579 - Sand, Mud, Snow and Ice

Peterbilt 579
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VEHICLE RECOVERY AND SPRING BRAKES
2
Sand, Mud, Snow and Ice
If the vehicle gets stuck in sand,
mud, snow, or ice:
Move the gearshift lever or
selector from First to Reverse.
Apply light pressure on the
accelerator pedal while the
transmission is in gear.
Remove your foot from the
accelerator while shifting.
Do not race the engine.
For best traction and safety, avoid
spinning the wheels.
Do not spin the wheels faster than
35 mph (55 km/h). Spinning a tire
at speedometer readings faster than
35 mph (55 km/h) can be dangerous.
Tires can explode from spinning too
fast. Under some conditions, a tire
may be spinning at a speed twice
that shown on the speedometer. Any
resulting tire explosion could cause
death or personal injury to a bystander
or passenger, as well as extensive
vehicle damage: including tire, trans
-
mission and/or rear axle malfunction.
WARNING!
Comply with the following
instructions to avoid transmission
damage:
Always start vehicle in motion with
the shift lever in rst gear.
Be sure that transmission is fully
engaged in gear before releasing
the clutch pedal (manual only).
Do not shift into reverse while the
vehicle is moving.
If the vehicle needs to be
recovered from being stuck, do not
permit the vehicle to be towed for
long distances without removing
the driveshaft.
Tire
Chains
If you
need tire chains, install them on
both sides of the driving axle.
CAUTION
Chains on the tires of only one tandem
axle can damage the driveline U-joints
and the interaxle differential. Repairs
could be costly and time-consuming.
Failure to comply may result in equip
-
ment damage.
2-22 Y53-6047–2C (04/13)

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