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CDL College Truck Driving School-10 Speed Transmission

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CDL College Truck Driving School-10 Speed Transmission

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Correct shifting of gears is important. If you cannot
get your vehicle into the right gear while driving,
you will have less control.
MANUAL TRANSMISSIONS
Basic Method for Shifting Up. Most heavy vehicles with manual transmissions require double
clutching to change gears. This is the basic
method:
Release accelerator, push in clutch and shift to neutral at the same time.
Release clutch.
Let engine and gears slow down to the RPM required for the next gear (this takes practice).
Push in clutch and shift to the higher gear at the
same time.
Release clutch and press accelerator at the same
time.
Shifting gears using double clutching requires
practice. If you remain too long in neutral, you may
have difficulty putting the vehicle into the next
gear. If so, do not try to force it. Return to neutral,
release clutch, increase engine speed to match
road speed, and try again.
Knowing When to Shift Up. There are two ways
of knowing when to shift:
Use Engine Speed (RPM). Study the driver's
manual for your vehicle and learn the operating
RPM range. Watch your tachometer, and shift up
when your engine reaches the top of the range.
(Some newer vehicles use "progressive" shifting:
the RPM at which you shift becomes higher as you
move up in the gears. Find out what is right for the
vehicle you will operate.)
Use Road Speed (MPH). Learn what speeds each
gear is good for. Then, by using the speedometer,
you will know when to shift up.
With either method, you may learn to use engine
sounds to know when to shift.

http://cdlcollege.com 303-367-1030

Correct shifting of gears is important. If you cannot
get your vehicle into the right gear while driving,
you will have less control.
MANUAL TRANSMISSIONS
Basic Method for Shifting Up. Most heavy vehicles with manual transmissions require double
clutching to change gears. This is the basic
method:
Release accelerator, push in clutch and shift to neutral at the same time.
Release clutch.
Let engine and gears slow down to the RPM required for the next gear (this takes practice).
Push in clutch and shift to the higher gear at the
same time.
Release clutch and press accelerator at the same
time.
Shifting gears using double clutching requires
practice. If you remain too long in neutral, you may
have difficulty putting the vehicle into the next
gear. If so, do not try to force it. Return to neutral,
release clutch, increase engine speed to match
road speed, and try again.
Knowing When to Shift Up. There are two ways
of knowing when to shift:
Use Engine Speed (RPM). Study the driver's
manual for your vehicle and learn the operating
RPM range. Watch your tachometer, and shift up
when your engine reaches the top of the range.
(Some newer vehicles use "progressive" shifting:
the RPM at which you shift becomes higher as you
move up in the gears. Find out what is right for the
vehicle you will operate.)
Use Road Speed (MPH). Learn what speeds each
gear is good for. Then, by using the speedometer,
you will know when to shift up.
With either method, you may learn to use engine
sounds to know when to shift.

http://cdlcollege.com 303-367-1030

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CDL College Truck Driving School-10 Speed Transmission

  1. 1. The 10-SPEED Transmission Hard Wall Soft Wall Soft Spring Wall hi-R Hard Wall Splitter DOWN for Gears 1-5 and Low Reverse 10 Splitter UP for Gears 6-10 and Hi Reverse lo-R 2 7 4 9 1 6 3 8 5 NEUTRAL Use Hard Walls and Soft Wall to Assist in Finding Gears and Shifting Common Student Mistake: Shifting from 6th to 9th Instead of 6th to 7th. Solution: Push Shifter Forward to Neutral, Allow Spring to Push Shifter to Soft Wall, Shift to 7th When Shifting from 5th to 6th, Splitter Up in 5th Before Shifting Grip the Shifter Lightly. White-Knuckling Inhibits Your Ability to Detect the Soft Wall Downshifting is Easier When RPM’s are Close to 1,000. Avoid Staring at the RPM gauge. Listen to Engine Speed. Downshifts Require a Fuel Bump Benefits of Shifting Early: Early Shifts Assist the Driver in Hitting the Next Gear and Translate to Increased MPG. Gears 1-5: Shift at 1,100 Gears 6-10: Shift at 1,600 15 MPH: 1+5=6 (6th Gear) 25 MPH: 2+5=7 (7th Gear) 35 MPH: 3+5=8 (8th Gear) 45 MPH: 4+5=9 (9th Gear) Over 45 MPH, 10th Gear

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