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UD exhaust brake 30 Sep 2021 07:23 #226223

  • wedgetail84
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Is it normal for a UD CWA45 to not have a micro switch on the accelerator pedal to cut out the exhaust brake? I’ve had a good look around the pedal and linkages but pretty sure it’s never had one. Was this common practice?

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UD exhaust brake 30 Sep 2021 08:19 #226225

  • Brocky45
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How new is it??? I would assume on these electronic engines it would be part of the "Fly by Wire" computer connection???

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UD exhaust brake 30 Sep 2021 08:40 #226228

  • wedgetail84
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Its 1985 - not much electrickery going on!

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UD exhaust brake 30 Sep 2021 09:45 #226230

  • jon_d
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Being Japanese, (I reckon) there will be a circuit board that looks like a transistor radio, but smaller with not antenna coil or speaker tucked in the steering column somewhere. It will be sensing a few inputs. The brake is probably sensed from the same circuit as the lights which will be triggered from a pressure switch somewhere. Maybe even in the hydraulic line itself.

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UD exhaust brake 30 Sep 2021 10:22 #226232

  • JOHN.K.
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Switch may be on the pump?.....i do recall ,the cutout wouldnt work if the idle was set too high by the button in the cab.

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UD exhaust brake 30 Sep 2021 10:42 #226236

  • hayseed
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"Be who you are and say what you feel...
Because those that matter...
don't mind...
And those that mind....
don't matter." -

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UD exhaust brake 30 Sep 2021 20:51 #226252

  • V8Ian
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I have vague memories of some Jap jiggers having a plunger or lockout of some description, preventing depression of the accelerator, when the exhaust was on.

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UD exhaust brake 30 Sep 2021 20:51 #226253

  • V8Ian
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I have vague memories of some Jap jiggers having a plunger or lockout of some description, preventing depression of the accelerator, when the exhaust brake was on.

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UD exhaust brake 01 Oct 2021 06:20 #226265

  • Mrsmackpaul
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I have vague memories of some Jap jiggers having a plunger or lockout of some description, preventing depression of the accelerator, when the exhaust was on.


I have me feeling you are right, or very close to been right, there was some small little Jap thingy I drove once that had something to stop your accelerator getting pushed all the way under certain conditions

I have me a feeling it was 22 seater bus and it was if the door never shut fully ?

May be wrong but it was something along those lines and I reckon it was a Toyota Coaster jobby

Paul
Your better to die trying than live on your knees begging

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UD exhaust brake 01 Oct 2021 08:03 #226268

  • roKWiz
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I have vague memories of some Jap jiggers having a plunger or lockout of some description, preventing depression of the accelerator, when the exhaust was on.


I have me feeling you are right, or very close to been right, there was some small little Jap thingy I drove once that had something to stop your accelerator getting pushed all the way under certain conditions

I have me a feeling it was 22 seater bus and it was if the door never shut fully ?

May be wrong but it was something along those lines and I reckon it was a Toyota Coaster jobby

Paul


Having a few smaller Jap trucks myself, I can not say I've even seen something that stops you pressing down on the acc pedal. When you do that it just cancels the exhaust braking via a couple of switches, one on the clutch pedal, one on the acc pedal (both look similar to a stoplight switch)
Heritage Stonemason
In order that the labour of centuries past may not be in vain during the centuries to come... D. Did
The following user(s) said Thank You: cobbadog

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Last edit: by roKWiz.
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