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Old 03-07-2014, 09:57 AM   #1
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How to shift

I'm just new to this forum & would like to know how to create a new post. I have a Prevost H3-45 with an Allison 6 speed standard tranny in it. I need help figuring out where the gears are & how to shift it & what rpm's to shift it at.

Thank u so much

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Old 03-07-2014, 02:38 PM   #2
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Old 03-07-2014, 06:19 PM   #3
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Looks like you figured it out since you made this post.

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Old 03-07-2014, 06:23 PM   #4
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Old 03-07-2014, 06:32 PM   #5
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Looks like you did it OK! Welcome!
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Old 03-07-2014, 06:48 PM   #6
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Old 03-07-2014, 06:53 PM   #7
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Howdy and welcome aboard. I'm sure you'll find the answers you're looking for. Good luck and have a great time.
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Old 03-07-2014, 06:58 PM   #8
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Hap, they're a real treat to figure out aren't they? Here is where they're located...

Remember.. there are 4 gates on these transmissions, not 3! So for ease, let's call them gates 1-4 with gate 1 being all the way to the LEFT:

Gate 1 (all the way to the left):
Bottom is 1st (you should rarely ever use 1st, it's reallllly low.. like 10mph low!)

Gate 2:
Top is 2nd
Bottom is 3rd

Gate 3:
Top is 4th
Bottom is nothing

Gate 4 (all the way to the right):
Top is 5th
Bottom is 6th

As far as shift RPM's it will depend upon which engine you have in your H3. Without knowing exactly, I'd guess 1500 rpm would be a good starting point.
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Old 03-15-2014, 03:10 AM   #9
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It seems you've got your answer.
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Old 03-16-2014, 10:33 AM   #10
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Not really...I've just been driving an automatic. I still need to know where all the gears are, what gear to start at empty, HOW exactly to shift (double clutch or otherwise), & what rpm to shift at.

Thank u
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Old 03-16-2014, 10:39 AM   #11
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Not sure what u mean by "gates". Can u post some kind of a drawing? If the gear diagram look kinda like a double H (like HH), what wud b the "gates"?

It's Detroit motor by the way.
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Old 03-16-2014, 09:23 PM   #12
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How do to u too.
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Old 03-16-2014, 11:57 PM   #13
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You could always enroll into one of these schools:
RV School
Rick Andrews RV Training School - Motorhome Driving Schools - Defensive Driving Instruction for RV, Boat Trailer and 5th wheel
RV Basic Training Driving an RV is easy . . . Let us show you how!
From what I understand Lazy Dayz in Florida also has a one day class that is free that will also teach you how to drive your rig.
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Old 03-17-2014, 10:33 AM   #14
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I'd suggest you post the question on this irv2 forum: Allison Transmission Forum - iRV2 Forums
There are a couple of former Allison techs that respond to questions.

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