| Author | Message | ||
| Roy Childs (Rchilds)
Registered Member Username: Rchilds Post Number: 2 Registered: 5-2007 Posted From: 142.161.163.149 Rating: N/A |
So far I have only driven standards, however I will have the opportunity to drive a coach with an 8V92 and a 740 automatic coming up soon. Is there any shifting involved or do you simply put it in drive and go. | ||
| macgyver (91flyer)
Registered Member Username: 91flyer Post Number: 303 Registered: 11-2004 Posted From: 74.193.225.134  Rating: N/A |
On the 60 footer New Flyer I had... It was an auto with an Allison 748 pushbutton. Part of the pre-trip was to roll forward in gear a minimum of 4 feet and then again in reverse the same distance... Of course, it helped that it was on a big plate clearly visible to the driver. ^.^ -Mac | ||
| Laryn Christley (Barn_owl)
Registered Member Username: Barn_owl Post Number: 602 Registered: 10-2006 Posted From: 72.66.181.14  Rating: N/A |
Drive and go; it's that easy. I could not get my bus to my house without the auto. My driveway (7/10 of a mile, very steep and twisty) would toast a clutch. Also it's much easier to back up, especially up a hill. | ||
| Buswarrior (Buswarrior)
Registered Member Username: Buswarrior Post Number: 1524 Registered: 12-2000 Posted From: 76.68.122.108  Rating: N/A |
You may want to select the gears, if it starts banging back and forth between 2-3 or 3-4 at city/suburban speeds. The 740 is prone to upshifting a gear too far under partial throttle, and then has to downshift if you require acceleration or your road speed drops a little. It also waits too long to downshift as road speed drops for as smooth a shift as it will do at engine governed speed. The good coachmen of that era used shifter positions 2-3-4. The transmission is allowed to make the 1-2 and 2-1 shifts, the driver chooses the rest, making the upshifts just before engine governed speed in each gear, and making the downshifts just slightly above engine governed speed for the next lower gear. Downshifts under throttle when climbing requires a momentary throttle lift and re-application at just the right moment during the downshift for a seamlessly smooth power delivery through the shift, this takes some practice to keep the champagne in the glass.... If you get the driveline to bang, or the heads of your passengers snapping to and fro, you got room for improvement. happy coaching! buswarrior | ||
| John MC9 (John_mc9)
Registered Member Username: John_mc9 Post Number: 849 Registered: 7-2006 Posted From: 74.162.78.76  Rating: N/A |
Ditto BW's comment. Keeping the 740 in third when in traffic and around town (when you don't expect to be going over 55mph), takes wear and tear out of the rig, and you. Oh... And remember that there's no "park" position with these rigs. If you get out and the back bumper goes by...... it already had a 40' jump on you. You gotta' RUN, man! | ||
| Clint Hunter (Truthhunter)
Registered Member Username: Truthhunter Post Number: 96 Registered: 1-2009 Posted From: 24.129.235.190  Rating: N/A |
well put bw ! fit for containment in a champagne glass or publishing in a operator's manual! ... and I shall add the bit about down shifting if the engine temperature is getting to high and rpm to low, this gives the cooling blower more speed and the entire cooling system higher potential capacity provided all is in good order. | ||
| RJ Long (Rjlong)
Registered Member Username: Rjlong Post Number: 1521 Registered: 12-2000 Posted From: 98.192.173.82  Rating: N/A |
Roy - Ditto Buswarrior. . . Plus, take a look at this: http://www.busnut.com/bbs/messages/12262/16204.html?1167073154 Have a good trip! FWIW & HTH. . .  | ||
| Roy Childs (Rchilds)
Registered Member Username: Rchilds Post Number: 3 Registered: 5-2007 Posted From: 142.161.189.82 Rating: N/A |
Thanks for the information it is exactly what I was hoping for. |