Syncronizers???
Topic 11045 | Page 2
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Pastor C posted:
Once you get the hang of this and have several months of experience, you may find that most of the time you will not use the clutch (double clutching) except when stopping and starting or under heavy load on a steep grade (my approach). If done correctly (takes practice) floating gears is actually faster than using the clutch.
The "old tech" point of your post is an interesting one,...not that long ago truck drivers in heavy class 7-8 CMVs had two gearshifts to contend with. The air actuated button controlling the low and high range on contemporary trucks at one time was a second gear shift. This configuration was standard throughout the sixties and still common in the early 70's.
Google "twin stick" or "twin sticking" and you will get a number of interesting Youtube hits. One in particular of a guy driving a W900L KW, who is a real magician.
A whole lot of fun...can't claim to be an expert, but I have driven (badly) a twin-stick several times. Happy for the air shift...!!!
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.
CMV:
Commercial Motor Vehicle
A CMV is a vehicle that is used as part of a business, is involved in interstate commerce, and may fit any of these descriptions:
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.