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Post by Bruce Henderson on Dec 13, 2004 4:33:59 GMT
__. On my 1976 Daimler Fleetline bus, there's a large button mounted directly behind and over the center of the windscreen. It's the same kind of button as used for the "engine start" and "engine stop" at the driver's station. It's directly beneath the "destination blind" area (although all the destination blind mechanism was stripped out of my bus before I bought it). __. Any idea what it's use is and what it resets?  Many thanks, Bruce Henderson, North Carolina USA |
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Post by Jonathan on Dec 13, 2004 10:43:08 GMT
Not sure, London Fleetlines had a warning unit mounted above the drivers window similar to the route masters which had two lights and a drop down flag with stop on it. The warning lights were for gears and brakes, the flag drops down if when is a drop in air pressure in the braking system or if there is a fault with the gears.
The button may have something to do with that?
It may be part of a drivers attack alarm system or panic button?
Not sure.
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Post by jordan on Feb 19, 2007 15:49:47 GMT
most buses have them its just to test to make sure all the control lights are in working order wile doing your walk a round checks.
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Post by merlinbus on Mar 29, 2007 15:14:14 GMT
If your bus is an ex London Transport Fleetline (DMS class), then the "reset" button is to reset the gearbox if it jams due to the rear wheels locking. This happened in snow or heavy braking on wet roads. The gearbox went into either a "false" neutral or stuck in the gear it stopped in. The DMS had an automatic box, CAV if I remember rightly. They could be converted to semi automatic if need be. If the box jammed, putting it into neutral and pressing the button remedied the problem. The same idea was fitted to other LT buses that shared the gearbox, namely the Swifts and Merlins (XMB, MB(S) and SM(S) classes), although we seemed to call all the single deckers Merlins. The Westinghouse flag system above the screen gave indication of brake and gearbox air.
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Post by BruceH on Mar 31, 2007 4:27:45 GMT
If your bus is an ex London Transport Fleetline (DMS class), then the "reset" button is to reset the gearbox if it jams due to the rear wheels locking. This happened in snow or heavy braking on wet roads. The gearbox went into either a "false" neutral or stuck in the gear it stopped in. The DMS had an automatic box, CAV if I remember rightly. They could be converted to semi automatic if need be. If the box jammed, putting it into neutral and pressing the button remedied the problem. The same idea was fitted to other LT buses that shared the gearbox, namely the Swifts and Merlins (XMB, MB(S) and SM(S) classes), although we seemed to call all the single deckers Merlins. The Westinghouse flag system above the screen gave indication of brake and gearbox air. __. Thanks so much for this info. My bus is a "jumbo" (extra-length, sometimes called "Manchester-type") Fleetline/No. Counties body, new to Southend in 1976, with O.680 and "Daimler" auto gearbox with a mid-70's "computer" (about the size of a cornflakes box with much less computing power than a $7.99 Walmart wristhingych today) controlling the shift. I'm going to the semi-auto selectable (with the "W" selector pattern shifter) asap. __. I had "Queensbridge" gearboxes in Wakely, Yorks rebuild me a replacement gearbox with the "high-speed" output gears ... you will recognize that the term "high-speed" is quite relative in this context. Is the "reset" button used in this setup at all? |
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