| Author |
Message |
John (205.188.209.11)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, December 14, 2002 - 10:35 pm: | |
Are wig-wag air low warning devices required only for school buses? and not for coachs and transit buses. A red light and alarm won't do?
Also I seen a driver operate with the low air warning on. Well, I didn't see it but when I got on the bus the wigwag was down, so I assumed thats what happened. |
Johnny (63.20.60.194)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, December 15, 2002 - 9:21 am: | |
Most air-brake vehicles made after the 1970's have the light & buzzer. IIRC, the air-braked Bluebird TranStar at work has no wigwag. |
Mrbus (64.12.96.235)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, December 15, 2002 - 10:12 am: | |
Hi John,
I assume that the "wigWag you are referring to is the low air warning flag that drops down from the top of the drivers windshield. They have not been used for many years, and all modern school buses as well as other air brake equipped vehicles have been using the warning light and buzzer. And yes it is possible to operate a vehicle with the flag down or the light and buzzer going, if there was initially enough air pressure to release the parking brakes. Even though this would be a very foolish thing to do, with the exception of moving to a safer place to stop. Many of the older vehicles with the "WigWag" were not equipped with spring brakes ,or DD3 type brakes. The parking brake was a band around the drive shaft on the rear of the gearbox. |
DaveD (142.46.196.34)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 16, 2002 - 12:45 pm: | |
My understanding is that a visual indicator (wigwag or light) is required and a buzzer is a supplemental device. A bus may not be operated with a defective visual indicator, regardless of braking system condition. As for operating a bus with the warning light on, on a newer bus, if the pressure is that low, the brakes would normally be on due to the design of the system. |
Henry R. Bergman, Jr. (Henryofcj) (63.224.197.10)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, December 16, 2002 - 5:09 pm: | |
What is a wigwag? Do you mean that red (mine is rather faded) metal flap stop sign do-hickie thing that flops down into the drivers line of vision when the air gets to around 80 psi or sooossss?
Yeah, I got one. Wondered what is was. He he he. And was wondering why after a couple of days, it flops down when the air pressure leaks out from somewheres where I have not been able to find.
I am going to re spray it the red it was and just leave it alone, although it is just another source of an air leak. I fugure they (Crown Super Coach) put it there for a good reason. '74 Crown 40-foot 10-wheeler. CROWNS FOREVER!!! |
buslady of so cal (168.103.232.151)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, December 21, 2002 - 2:44 pm: | |
The Wig Wag is a low air warning device required on Schoolbuses before apr.77; at least in California. Schoolbuses after that date only require audio & visual warnings. I like the wigwag, they're cool.
Henry you are like me, KEEP IT!!!!!!!!!!
BUSLADYofSOCAL |