micro lock

G

gene

New member
Sep 29, 1999
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I am going to use one that has a mechanical lever to lock the lines. this
is what we used on my dads dump trucks and I saw this on an SOB Bounder.
This way I don't have to depend upon the battery or switches.

gene

Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
>I am going to use one that has a mechanical lever to lock the lines. this
>is what we used on my dads dump trucks and I saw this on an SOB Bounder.
>This way I don't have to depend upon the battery or switches.
>
>gene
>
>
>Genef -- 77PB/ore/ca
>GMC MOTORHOME INFORMATION
>mr.erf
>http://www.california.com/~eagle/

Heinz, we use a micro-lock. It's a separate little button on the floor. To
set it, you step on the button while pressing the brake pedal. To release
it, just step on the brake pedal again. No wires. Simple.

We wouldn't trust it to hold overnight. We carry wheel chocks for that.

Does everything need to be "wired"? ;-)

Dave (advisor/navigator & Dege, pilot etc.), '76 Royale, Santa Barbara, CA
 
The "little button".... mechanical or electrical?
If mechanical, how is it "plumbed" in, I.e. where?

As you said no wires, I assume it's mechanical. Any source for the valve?

Heinz

> >I am going to use one that has a mechanical lever to lock the lines.
this
> >is what we used on my dads dump trucks and I saw this on an SOB Bounder.
> >This way I don't have to depend upon the battery or switches.
> >
> >gene
> >
> >
> >Genef -- 77PB/ore/ca
> >GMC MOTORHOME INFORMATION
> >mr.erf
> >http://www.california.com/~eagle/
>
> Heinz, we use a micro-lock. It's a separate little button on the floor. To
> set it, you step on the button while pressing the brake pedal. To release
> it, just step on the brake pedal again. No wires. Simple.
>
> We wouldn't trust it to hold overnight. We carry wheel chocks for that.
>
> Does everything need to be "wired"? ;-)
>
> Dave (advisor/navigator & Dege, pilot etc.), '76 Royale, Santa Barbara, CA
>
>
>
 
It sounds like Dave Lawry's is mechanical, maybe he can tell us the model ,
location, and manuf of the one he has.

I know Manny,Mr.c, and I are interested a non-electric version

gene

>The "little button".... mechanical or electrical?
>If mechanical, how is it "plumbed" in, I.e. where?
>
>As you said no wires, I assume it's mechanical. Any source for the valve?
>
>Heinz
>
>
>> >I am going to use one that has a mechanical lever to lock the lines.
>this
>> >is what we used on my dads dump trucks and I saw this on an SOB Bounder.
>> >This way I don't have to depend upon the battery or switches.
>> >
>> >gene
>> >
>> >
>> >Genef -- 77PB/ore/ca
>> >GMC MOTORHOME INFORMATION
>> >mr.erf
>> >http://www.california.com/~eagle/
>>
>> Heinz, we use a micro-lock. It's a separate little button on the floor. To
>> set it, you step on the button while pressing the brake pedal. To release
>> it, just step on the brake pedal again. No wires. Simple.
>>
>> We wouldn't trust it to hold overnight. We carry wheel chocks for that.
>>
>> Does everything need to be "wired"? ;-)
>>
>> Dave (advisor/navigator & Dege, pilot etc.), '76 Royale, Santa Barbara, CA
>>
>>
>>
>
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
I guess it is why most emergency brakes are nonelectric. this is a
fail-safe system that will always work even if the batteries are down, the
fuse is blown,the engine is not running , or you are in just blind panic.

I think it is a throw back to the days when I had to park on steep hills
with 10 tons on gravel in the truck. No emergency brake would hold, only
the micro lock would hold since it locked all of the wheels.

With the micro lock parking brake ( notice I did not say emergency brake)
when you flip up the lever, any pedal activity will be held on the brakes
and you can lock them up even without the booster.. So I don't want to
rely on batt volts to put them on or take them off.

Since I am in electronics, I guess inherently don't trust electric devices.

gene

>In a message dated 05/07/2000 9:26:17 AM Central Daylight Time,

>
>> I know Manny,Mr.c, and I are interested a non-electric version
>>
>Gene
>
>Could you tell me why you want a non-electric version. I dont know
>much about this.
>
>Take Care
>Arch
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
The strictly mechanical device installs in the brake line going to the
rears just under the floor at the left edge of the foot well. The "button"
is a 1 1/4" rubber pad that activated by stepping on it with the left foot
while holding the brake pedal down with the right. It works by blocking the
blake fluid from returning to the master cylinder until the pad is stepped
on again. I got mine from J C Whitney.

HTH, Dave

>The "little button".... mechanical or electrical?
>If mechanical, how is it "plumbed" in, I.e. where?
>
>As you said no wires, I assume it's mechanical. Any source for the valve?
>
>Heinz
 
do you happen to know the part number ??

whup out that digital camera and send a pix ??

gene

>The strictly mechanical device installs in the brake line going to the
>rears just under the floor at the left edge of the foot well. The "button"
>is a 1 1/4" rubber pad that activated by stepping on it with the left foot
>while holding the brake pedal down with the right. It works by blocking the
>blake fluid from returning to the master cylinder until the pad is stepped
>on again. I got mine from J C Whitney.
>
>HTH, Dave
>
>>The "little button".... mechanical or electrical?
>>If mechanical, how is it "plumbed" in, I.e. where?
>>
>>As you said no wires, I assume it's mechanical. Any source for the valve?
>>
>>Heinz
>
>
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
Ok, here tiz.....

J C Whitney catalogue 638J-05, page 179

IN-LINE HYDRAULIC BRAKE LOCK #85DX6592Y $23.95, or #73DX4432T $26.49 if
you're using silicone fluid.

Digital camera is still on the list (somewhere)

HTH, Dave

>do you happen to know the part number ??
>
>whup out that digital camera and send a pix ??
>
>gene
>
>

>>The strictly mechanical device installs in the brake line going to the
>>rears just under the floor at the left edge of the foot well. The "button"
>>is a 1 1/4" rubber pad that activated by stepping on it with the left foot
>>while holding the brake pedal down with the right. It works by blocking the
>>blake fluid from returning to the master cylinder until the pad is stepped
>>on again. I got mine from J C Whitney.
>>
>>HTH, Dave
>>
>>>The "little button".... mechanical or electrical?
>>>If mechanical, how is it "plumbed" in, I.e. where?
>>>
>>>As you said no wires, I assume it's mechanical. Any source for the valve?
>>>
>>>Heinz
>>
>>
>>
>Genef -- 77PB/ore/ca
>GMC MOTORHOME INFORMATION
>mr.erf
>http://www.california.com/~eagle/
 
>In a message dated 05/07/2000 9:26:17 AM Central Daylight Time,

>
>> I know Manny,Mr.c, and I are interested a non-electric version
>>
>Gene
>
>Could you tell me why you want a non-electric version. I dont know
>much about this.
>
>Take Care
>Arch

Simplicity. No wires, fuses or switches. Very difficult to "accidently"
activate.

Dave (advisor/navigator & Dege, pilot etc.), '76 Royale, Santa Barbara, CA
 
>oh really??? You accidently hit it with your foot while moving and it
>instantly locks and you never know it until you try to stop and than no
>brakes! Isnt that nice?
>
Can't understand how that could happen. The device blocks pressure from
returning from the rear wheel cylinders. In fact, it is that pressure that
makes it work. If the little pad was stepped on any time the rears weren't
pressurized, nothing would happen. We tried it. The only way it will
release is when you press on the brake pedal hard enough to create more
pressure on the master cylinder side than is being held back from the wheel
cylinders.

Dave (advisor/navigator & Dege, pilot etc.), '76 Royale, Santa Barbara, CA
 
Right. For it to work, the line to the rear has to be under pressure. Then
you step on the pad and release the brake pedal. That creates the
differential which activates the lock.

Like I said, simple.

>So when you step down on it when not pushing on the brake pedal it will not
>lock down?
>
>

>>>oh really??? You accidently hit it with your foot while moving and it
>>>instantly locks and you never know it until you try to stop and than no
>>>brakes! Isnt that nice?
>>>
>>Can't understand how that could happen. The device blocks pressure from
>>returning from the rear wheel cylinders. In fact, it is that pressure that
>>makes it work. If the little pad was stepped on any time the rears weren't
>>pressurized, nothing would happen. We tried it. The only way it will
>>release is when you press on the brake pedal hard enough to create more
>>pressure on the master cylinder side than is being held back from the wheel
>>cylinders.
>>
>>Dave (advisor/navigator & Dege, pilot etc.), '76 Royale, Santa Barbara, CA
>>
>>
>>
>>
 
I had one on my old 70 Bonneville. Hooked to the front wheels only so I
could do some incredible burnouts to impress the girls (and ruin my tires).

I remember that I used to have a bad habit of fiddling with the pedal while
under way, and unless I hit the brakes, it wouldn't do anything when
depressed on it's own.

Tony Bad

- ----- Original Message -----
From: Dave Lowry
To:
Sent: Sunday, May 07, 2000 8:42 PM
Subject: Re: GMC: micro lock

> Right. For it to work, the line to the rear has to be under pressure.
Then
> you step on the pad and release the brake pedal. That creates the
> differential which activates the lock.
>
> Like I said, simple.
>
> >So when you step down on it when not pushing on the brake pedal it will
not
> >lock down?
> >
> >

> >>>oh really??? You accidently hit it with your foot while moving and it
> >>>instantly locks and you never know it until you try to stop and than no
> >>>brakes! Isnt that nice?
> >>>
> >>Can't understand how that could happen. The device blocks pressure from
> >>returning from the rear wheel cylinders. In fact, it is that pressure
that
> >>makes it work. If the little pad was stepped on any time the rears
weren't
> >>pressurized, nothing would happen. We tried it. The only way it will
> >>release is when you press on the brake pedal hard enough to create more
> >>pressure on the master cylinder side than is being held back from the
wheel
> >>cylinders.
> >>
> >>Dave (advisor/navigator & Dege, pilot etc.), '76 Royale, Santa Barbara,
CA
> >>
> >>
> >>
> >>
>
>
>
>
 
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