| Author |
Message |
Gary C. (66.84.75.4)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 25, 2003 - 8:04 pm: | |
I have a 83 MCI9 and it has been sitting since May, and now the brakes wont release. I dont know if it is the parking brake or regular brakes. I push in parking brake button and push brake pedal down hard and bus wont move either foward or reverse.
Thanks
Gary C |
ddut10 (205.188.209.8)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 26, 2003 - 12:39 am: | |
hi you might want to bendix web site they have a trouble shooting guide here the site
http://www.bendix.com/Bendix-BusOEM.shtml
but i think your having the same problem im having and i think its what they call inversion valve but i havent found it yet you do make sure your up to at least 90 lbs befor you start to realease the brakes? but if i find out any more i will let you know |
John Rigby (24.174.239.244)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 26, 2003 - 8:52 am: | |
Try pumping the break foot pedal. My 4104 does the the same when it has not moved for long periods.Pumping the peadal normally realeases the breaks.
John |
Buswarrior (Buswarrior) (64.229.211.208)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, October 27, 2003 - 9:41 pm: | |
Hello Gary.
I fear that your brake linings may have affixed themselves against the drums, due to rust.
Assuming that you are able to build proper air pressure, and that you have air integrity with the parking brake control released, and you indicated that you had applied some full service brake pressure, (brake pedal held against the floor boards for several seconds) in the prescribed DD3 releasing manner:
try some engine power, in forward and reverse and back again, in an attempt to break it free.
Also, it's the same brake mechanisms that apply the parking and service brake on your bus.
Be good to do some basic air brake reading.
Where are you Gary? Maybe a busnut nearby that can come over to help?
happy coaching!
buswarrior |
JimNH (172.210.193.44)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, October 28, 2003 - 7:39 am: | |
One other idea is to chock the wheels and then with a long handled mirror, look at the slack adjusters while someone else releases the brakes or actuates them. If the slack adjuster moves, Buswarrier is correct. If they don't move, it's time to troubleshoot the brake system. If they do move, don't apply a whole lot of engine power for a long time, just a stab forward and a stab backwards repeatedly until they snap loose.
Jim |
TVP (63.122.65.97)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, November 03, 2003 - 4:32 pm: | |
hey ...
don't forget the obvious .. my bus sunk in the asphault EVERY time I parked it .. had to rock it out .. even after sitting a week :\
TVP |
bruceknee (12.90.50.203)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, November 05, 2003 - 7:08 pm: | |
hi, rust is probably the problem. chock the tires, release the brakes and get under there with a 5 lb sledge and smack the drum a few times. they should release. |