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Peterbilt 365 - Page 136

Peterbilt 365
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Avoid gear clashing, by closely following
these procedures. When you are operating
a new vehicle or one that has been
exposed to cold weather, you want the
transmission lubricant (fluid) to circulate
and coat the contacting surfaces of the
gears. Metal contacting metal in moving
parts may seriously damage your
transmission, do not drive in one gear for
long periods of time until the transmission
lubricant has a chance to coat all
contacting surfaces.
Always select a starting gear that
will provide sufficient gear
reduction for the load and terrain.
Never downshift when the vehicle
is moving too fast.
Never slam or jerk the shift lever to
complete gear engagement.
Never coast with the transmission
in neutral and the clutch
disengaged.
How to Use the Hydraulic Clutch
CAUTION
Be careful not to apply the clutch
brake while the vehicle is moving. The
purpose of the clutch brake is to stop
the transmission so that you can shift
into a starting gear without grinding
gears. Applying the clutch brake when
the vehicle is moving causes a braking
effect on the drivetrain and shortens
the service life of the clutch brake.
CAUTION
DO NOT push the clutch pedal com-
pletely to the floor when shifting while
the vehicle is in motion. using the
clutch brake while shifting a vehicle in
motion will damage the clutch brake. A
non functioning clutch brake will make
shifting very difficult when the vehicle
is stationary.
1. Depress the clutch pedal past the
first 1/2 in. (13 mm) for
approximately 5 1/2 in. (139.7 mm)
of total pedal travel.
2. Depress the clutch pedal another
1/2 in. (13 mm) to engage the
clutch brake.
The clutch brake is used for stopping
transmission gears, allowing you to easily
shift into first gear or reverse without
grinding gears. The clutch brake is not
necessary when shifting into other gears
while in motion.
If the clutch pedal is pressed completely to
the floor and the transmission is not
shifting, then it is time to have the clutch
adjusted or serviced.
If the transmission has a butt-tooth
condition and you cannot engage a gear,
gradually release the clutch. Then the drive
gear can roll enough to allow the teeth to
line up properly and complete the shift.
The clutch is not a footrest. Do not drive
with your foot resting on the clutch pedal. It
will allow your clutch to slip, causing
excessive heat and wear, damage could
result.
When you must idle your engine for any
period of time, shift your transmission to
neutral and disengage the clutch (take your
foot OFF of the pedal). This helps prevent
unnecessary wear to your clutch release
bearing, and it is less tiring for you, too.
Always use the clutch when
making upshifts or downshifts.
Never coast with the transmission
in neutral and the clutch
disengaged.
To provide smooth gear
engagements while shifting, use
DRIVING - Transmission
134 Y53-6076-1D1 (09/20)
4

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