BMW K bikes (Bricks)

You are not connected. Please login or register

View previous topic View next topic Go down  Message [Page 1 of 1]


1Back to top Go down   A new approach to faulty earths Empty A new approach to faulty earths on Fri Mar 29, 2013 2:50 am

ibjman

ibjman
Life time member
Life time member
I have not seen this tip here....
I once learned a neat trick that the Cummins engine company now uses as a diagnostic aid. It is routinely factory installed on many of their newer electronically controlled diesel engines.
Cummins installs a "telltale" fuse between the frame and the engine block.
This is a 1/2 amp very light duty fuse. Any time a technician could suspect unknown electrical gremlins.......he need only inspect the fuse. If he finds that fuse blown, he knows that he has a faulty ground somewhere in the wiring.
I thought.........how cool is that??????

    

2Back to top Go down   A new approach to faulty earths Empty Re: A new approach to faulty earths on Fri Mar 29, 2013 4:17 am

charlie99

charlie99
VIP
VIP
would have been smarter thinking to make it one of the newer led indicator types

but then i guess some customers would wake up to that pretty quick ...robbing them of valueable service jobs ...

but a great idea none the less.... perhaps we can do similar

put a light rated fuse between the frame ground and the battery negative terminal ....would cetainly pickup and indicate when that rotten earth on the gearbox was going intermittent huh ?


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OA new approach to faulty earths Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

3Back to top Go down   A new approach to faulty earths Empty Re: A new approach to faulty earths on Sat Mar 30, 2013 6:42 pm

K-BIKE

avatar
Life time member
Life time member
A good idea, I have changed all my fuses for LED indicator fuses as that makes it a quick spot to see if a fuse is blown.
Regards,
K-BIKE

    

4Back to top Go down   A new approach to faulty earths Empty great idea. on Sat Mar 30, 2013 7:00 pm

ibjman

ibjman
Life time member
Life time member
I was toying with the idea of led indicator relays.
ever seen anything like that? a green led when relay is closed???? maybe a red one to indicate when power is available at the relay????

    

5Back to top Go down   A new approach to faulty earths Empty Re: A new approach to faulty earths on Sat Mar 30, 2013 8:12 pm

K-BIKE

avatar
Life time member
Life time member
I specify them for PLC driven systems for industrial controls, a simple check in the switchboard tells one instantly which relay is energised a huge aid to commissioning checks.
Regards,
K-BIKE

    

6Back to top Go down   A new approach to faulty earths Empty can you specify a source? on Sat Mar 30, 2013 11:29 pm

ibjman

ibjman
Life time member
Life time member
for the standard 50A auto relay? that has LEDs?

85/86 87/87A 30 ?

    

7Back to top Go down   A new approach to faulty earths Empty Re: A new approach to faulty earths on Sat Mar 30, 2013 11:44 pm

charlie99

charlie99
VIP
VIP
i think kbike is refering to more of the cradle type relay

have seen zillions of them in my work

although lots are now going to solid state relays in 4 gang high barrier terminations fuse on top


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OA new approach to faulty earths Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

8Back to top Go down   A new approach to faulty earths Empty Re: A new approach to faulty earths on Sun Mar 31, 2013 5:34 pm

K-BIKE

avatar
Life time member
Life time member
Charlie is right that was what I was referring to but the principle is still sound with a standard auto relay if it is one that you can get the case off. With the right model of relay there should be space to fit a small LED through the case. If there was not enough space to take the leads folded down when the case was replaced an LED fixed in place with a hole large enough for the LED to poke through when the cover is replaced and a small line of silicone to fit round the diode and seal the case. That said it would be easier to mount the LED outside the case wired straight off the coil connections and fastened to the relay case. Whichever method one used all relays that were engaged would be glowing the colour of your choice. It won't tell you current is flowing through the contacts but it will tell you the relay is pulled in. The real benefit comes when you are stranded miles from anywhere with an electrical fault I reckon having indicating relays and indicating fuses should speed diagnosis a lot.
Regards,
K-BIKE

    

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum