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Bobcat  > Skid Steers  > Re: bobcat 763 HP-3 light  
 
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 Author Thread: bobcat 763 HP-3 fault & Hydro oil temp light
teeroy is not online. Last active: 9/30/2010 4:51:41 PM teeroy
Joined: 17 Aug 2010
Total Posts: 11
 
bobcat 763 HP-3 fault & Hydro oil temp light
Posted: 08/17/2010 08:25 PM
on start up HP-3 code is on all the time, also the hydro oil temp warning light is on even on start up when oil is cold. i tried jumping the 2 wires on each sensor but it comes up with code 4 wiring short. is there a way to test the temp and pressure switch befor i get new ones?
Tazza is not online. Last active: 7/31/2014 8:32:51 PM Tazza
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Re: bobcat 763 HP-3 fault & Hydro oil temp light
Posted: 08/18/2010 03:00 PM

Hook a pressure gauge up to the spot the sensor is screwed into. I would suspect its just a bad sender, they do go bad. The computer does detect open and short circuits, whats why you can't just jump it.

The charge pressure suould be about 90-120 PSI so get a gauge that will read at least 150PSI


Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
teeroy is not online. Last active: 9/30/2010 4:51:41 PM teeroy
Joined: 17 Aug 2010
Total Posts: 11
 
Re: bobcat 763 HP-3 light
Posted: 08/23/2010 03:48 AM
hey mate i hooked up a gauge no probs.. bought a new sensor but now im getting hp-3 hc-3 and think its hcf-1, all the wiring looks ok back to the black box under the cab. Is there somthing i can check before going back to the dealer? also with the lcd display when it shows the faults it shows 6o55 the zero is half size i think it means boss is this correct? or is this the hours..
Tazza is not online. Last active: 7/31/2014 8:32:51 PM Tazza
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Re: bobcat 763 HP-3 light
Posted: 08/23/2010 03:08 PM

It does mean BOSS

I'm not sure what the issue could be. Have you harassed your dealer to see if they have any ideas?


Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
teeroy is not online. Last active: 9/30/2010 4:51:41 PM teeroy
Joined: 17 Aug 2010
Total Posts: 11
 
Re: bobcat 763 HP-3 light
Posted: 08/23/2010 03:13 PM
Thanks. do you know if there is a way to turn the warnings off to see the hours on the machine as it does not show them when it has faults come up? the dealer where i am is not much help they thought sensor or wire problem.. could it be the computer? troy
Tazza is not online. Last active: 7/31/2014 8:32:51 PM Tazza
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Re: bobcat 763 HP-3 light
Posted: 08/23/2010 05:59 PM

I thought the hours would flash up first then the errors?

Its always possible its a computer issue, but as you did state when you shorted the sender out it showed as a short on the display. As its detecting this, its hard to believe its the computer....


Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
teeroy is not online. Last active: 9/30/2010 4:51:41 PM teeroy
Joined: 17 Aug 2010
Total Posts: 11
 
Re: bobcat 763 HP-3 light
Posted: 08/28/2010 05:27 AM
thanks for all the replys got it all sorted turns out it was loose or bad connections to the BOSS, all works the hours now show. troy
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