Bus on Bags
#8
isnt there a suspension forum?
#10
Out of Warranty
For a time GM and perhaps some other coachbuilders offered what they called a "kneeling" bus in the 1970's that lowered the front end down to the ground to make is easier for handicapped and elderly people to board. I think the front suspension was bagged (as was the rear on all models) to enable these buses to perform this stunt.
If memory serves, most were removed from service after a short time because all of the interlock mechanism that kept the driver from moving with the front end on the pavement was problematical, and the time required to raise and lower the bus at every stop blocked traffic unnecessarily and drivers were reluctant to use the feature. Worse was the tendency of drivers to pull too close and drop the bus onto the curb, causing some damage to the door mechanism. There was some question too about the longevity of a front suspension with this capability, but I don't think enough units remained in service to give it a fair test.
There has been a movement lately to reintroduce the kneeling bus, but combined with today's litigious society, the first guy on whose toes it squats will probably own the franchise.
If memory serves, most were removed from service after a short time because all of the interlock mechanism that kept the driver from moving with the front end on the pavement was problematical, and the time required to raise and lower the bus at every stop blocked traffic unnecessarily and drivers were reluctant to use the feature. Worse was the tendency of drivers to pull too close and drop the bus onto the curb, causing some damage to the door mechanism. There was some question too about the longevity of a front suspension with this capability, but I don't think enough units remained in service to give it a fair test.
There has been a movement lately to reintroduce the kneeling bus, but combined with today's litigious society, the first guy on whose toes it squats will probably own the franchise.
#11
All buses are on an air system as stated by some members already. Alot of the motor coach buses as well as the High END RV's are equipped with them as well. On the motor coaches, only the front end is bagged so that it can achieve that "Kneeling effect" that LIL4x mentioned. Not all motor coach companies have that, as I believe it is an option for them to have equipped. The companies which use the buses by PREVOST are probably the most commonly equipped with this system. Motor homes are the same way, the front end can kneel in order to make ease of entry a little more easier.
#12
Lexus Champion
MCIs and Prevosts are tour coaches and entertainers, but MCI does have a good share of the transit market for commuter coaches, and for public use coaches as university buses and prison transports.
Last edited by nthach; 01-12-08 at 11:04 PM.
#13
Lexus Champion
iTrader: (14)
All buses are on an air system as stated by some members already. Alot of the motor coach buses as well as the High END RV's are equipped with them as well. On the motor coaches, only the front end is bagged so that it can achieve that "Kneeling effect" that LIL4x mentioned. Not all motor coach companies have that, as I believe it is an option for them to have equipped. The companies which use the buses by PREVOST are probably the most commonly equipped with this system. Motor homes are the same way, the front end can kneel in order to make ease of entry a little more easier.
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