Bus not driving properly??

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Bus not driving properly??

Post by Buschick »

Hi everyone!

I have a 1986 Denning old Brisbane city bus.

This is going to sound ridiculous but what am I doing wrong?

When driving the bus I have to put full force on the acceleration pedal for my bus to move.... which is causing a lot of white smoke.

I'm clearly not doing something right. What am I missing?

Power on
Batts main switch
Starter button
Put it into drive
Take of breaks leaver
..... and drive. :!:

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Re: Bus not driving properly??

Post by PoweredByCNG »

What are your brake circuit air gauges reading when you depart?
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Re: Bus not driving properly??

Post by Bus-1809 »

Sounds to me like it may be an MAN SL200.

You need to wait for the brake pressure gauges (the left top and left bottom gauges with 2 needles in them) to raise to at least 8 bar, before you attempt to release the spring brake. This can take up to 5 minutes, depending on how good the air lines and compressor on your bus are. The white needles tell you how much pressure is in the tanks & the red needles tell you how much pressure is being fed to the brakes, when the brake pedal is depressed.
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Re: Bus not driving properly??

Post by boronia »

What engine does it have?

Does it have an exhaust brake? Sometimes these stick on and give the symptoms you have described.
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