Companies That Require Double Clutching
Topic 3013 | Page 1
All major companies require you to know how to double clutch to test out.
Double Clutch:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
On your test that the company will give you will have to double clutch. No way around that. It's part of the test to see how you do over all. It's not strictly a fail. You are over thinking the double clutch. It's really no big deal.
Double Clutch:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Double Clutching is required when you test for your cdl...but when you get out on the road, your trainer will show you how to "float the gears" without using the clutch...much easier...
CDL:
Commercial Driver's License (CDL)
A CDL is required to drive any of the following vehicles:
- Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
- Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
- Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
- Any vehicle required by federal regulations to be placarded while transporting hazardous materials.
Float The Gears:
An expression used to describe someone who is shifting gears without using the clutch at all. Drivers are taught to "Double Clutch" or press and release the clutch twice for each gear shift. If you're floating gears it means you're simply shifting without using the clutch at all.
Double Clutch:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Double Clutching:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Double Clutching is required when you test for your cdl...but when you get out on the road, your trainer will show you how to "float the gears" without using the clutch...much easier...
Starcar don't forget you also have to test out after training before you get your first solo truck.
CDL:
Commercial Driver's License (CDL)
A CDL is required to drive any of the following vehicles:
- Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
- Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
- Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
- Any vehicle required by federal regulations to be placarded while transporting hazardous materials.
Float The Gears:
An expression used to describe someone who is shifting gears without using the clutch at all. Drivers are taught to "Double Clutch" or press and release the clutch twice for each gear shift. If you're floating gears it means you're simply shifting without using the clutch at all.
Double Clutch:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Double Clutching:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Just for the record, Barr Nunn requires double clutching. They have a sticker on the dash that states "this vehicle equipped with a self adjusting clutch. Use of the clutch during shifting is required".
First time I have seen/heard of that. But then I have only been out here just over 2 years myself.
Ernie
Double Clutch:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Double Clutching:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Roehl teached and expects you to use double clutching. You, also, must do progressive shifting. It is all about saving fuel.
Double Clutch:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Double Clutching:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Opppps meant to say teaches!
Wine Taster, How does using the clutch effect fuel performance? Did they say how that works?
Stephen E. Birch
Wine Taster, How does using the clutch effect fuel performance? Did they say how that works?
Stephen E. Birch
Butt, It's not double clutching that saves on fuel. It's progressive shifting that saves on fuel.
Progressive shifting is basically avoiding high rpms, since that's when the engine demands the greatest amount of fuel. I use progressive shifting only because I have fuel requirements that Prime expects me to meet.
To progressive shift you are never to go above 1400 rpms. I upshift at 1300 rpms that way I'm never in high rpms, depending on terrain of course. And I downshift at about 900 rpms so that the rpms won't be above 1400 rpms for the gear I get it into. Plus downshifting with low rpms is a lot easier than downshifting at 1200 like they tell you to at school. You need to apply much less throttle.
But honestly don't focus on progressive shifting or floating gears just yet. Don't even worry about being efficient on fuel consumption. There's a million other things more important that should be on your mind - you'll learn this stuff in training. Hope that makes sense, Butt.
Floating Gears:
An expression used to describe someone who is shifting gears without using the clutch at all. Drivers are taught to "Double Clutch" or press and release the clutch twice for each gear shift. If you're floating gears it means you're simply shifting without using the clutch at all.
Double Clutch:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Double Clutching:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
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I will be getting my CDL soon, and am trying to decide which company to go with. I just found out that Covenant, and Werner both require double clutching. Is this true? And what other major companies do also?
CDL:
Commercial Driver's License (CDL)
A CDL is required to drive any of the following vehicles:
Double Clutch:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.
Double Clutching:
To engage and then disengage the clutch twice for every gear change.
When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.
This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.