unconnected connector - 763

[jhatchett]

I replaced my fuel pickup tube today and noticed that I have some unconnected wiring under the seat. One end of the pair is from a hydraulic valve or solenoid on the top of the central tunnel. There are a few unconnected/unused pairs on the harness but most of them have caps, except for a couple. I am not sure which one needs to be connected to the solenoid/valve. Here is a link to a photo. I will take a better photo tomorrow and add it. https://picasaweb.google.com/lh/photo/QBzqUPND6fD53n_mr9VkX9MTjNZETYmyPJy0liipFm0?feat=directlink

 

[antfarmer2]

Post the serial number will get better help

 

[jhatchett]

Post the serial number will get better help

couldn't snap another picture yet. sn *512255067* G- series

 

[antfarmer2]

couldn't snap another picture yet. sn *512255067* G- series

Great now all you need is for OM to see this he seems to be the man for this typ of info

 

[Tazza]

Great now all you need is for OM to see this he seems to be the man for this typ of info

There are generally a few unused connectors, it's just there for optional extras. The one near the steering levers/park brake solenoid may be the reverse beeper switch, the one on the left could be for bucket positioning, or something else.
If it's all working, don't be too worried

 

[jhatchett]

There are generally a few unused connectors, it's just there for optional extras. The one near the steering levers/park brake solenoid may be the reverse beeper switch, the one on the left could be for bucket positioning, or something else.
If it's all working, don't be too worried

If the park brake solenoid is the one in the center below the steering levers then it is not connected. The machine does creep so that may be the culprit. There were tw candidate connectors (uncapped) on the harness, one on each side of the machine. I suspect it could be the connector on harness nearest the throttle but could use some guidance. - - -- The reverse beeper has been disabled for awhile so that could be the connection as well. I thought it was just disconnected at the rear of the machine, at the beeper, but I will check. I needed to get the reverse beeper working again anyway.

 

[OldMachinist]

If the park brake solenoid is the one in the center below the steering levers then it is not connected. The machine does creep so that may be the culprit. There were tw candidate connectors (uncapped) on the harness, one on each side of the machine. I suspect it could be the connector on harness nearest the throttle but could use some guidance. - - -- The reverse beeper has been disabled for awhile so that could be the connection as well. I thought it was just disconnected at the rear of the machine, at the beeper, but I will check. I needed to get the reverse beeper working again anyway.

Do the connectors still have the tag with their numbers on them?

 

[jhatchett]

Do the connectors still have the tag with their numbers on them?

I didn't see any labels on the connectors but I will look closer.

 

[OldMachinist]

I didn't see any labels on the connectors but I will look closer.

Also is this the solenoid that's not connected.

 

[jhatchett]

Also is this the solenoid that's not connected.

yes, that is the connector. https://picasaweb.google.com/lh/photo/aRVuOoGnGS0OmmNED0zYr9MTjNZETYmyPJy0liipFm0?feat=directlink
I have two open connectors, without labels and without caps. one on each side of the machine. Not sure how to embedded the photos but here are links to the two photos. https://picasaweb.google.com/lh/photo/_d4BpovYaSh3cAU1BhOTRNMTjNZETYmyPJy0liipFm0?feat=directlink
https://picasaweb.google.com/lh/photo/--HdyyqlspSpq7Hyy4mG3NMTjNZETYmyPJy0liipFm0?feat=directlink

 

[OldMachinist]

yes, that is the connector. https://picasaweb.google.com/lh/photo/aRVuOoGnGS0OmmNED0zYr9MTjNZETYmyPJy0liipFm0?feat=directlink
I have two open connectors, without labels and without caps. one on each side of the machine. Not sure how to embedded the photos but here are links to the two photos. https://picasaweb.google.com/lh/photo/_d4BpovYaSh3cAU1BhOTRNMTjNZETYmyPJy0liipFm0?feat=directlink
https://picasaweb.google.com/lh/photo/--HdyyqlspSpq7Hyy4mG3NMTjNZETYmyPJy0liipFm0?feat=directlink

That's the front aux. relief valve. Pull back the black mesh sleeve on the wires to the open connectors and look for the wire numbers printed on the wires. The wire numbers for the valve should be 4490(lt.green wire) and 2490 (black wire).

 

[jhatchett]

That's the front aux. relief valve. Pull back the black mesh sleeve on the wires to the open connectors and look for the wire numbers printed on the wires. The wire numbers for the valve should be 4490(lt.green wire) and 2490 (black wire).

THANKS! Found the correct connections and reattached. That would explain why I couldn't get pressure relief on the aux hydraulics. Discovered another unconnected connector while investigating, near the left foot pedal. Wire labels were 2720 on the black wire and 1740 on the orange wire. There is a corresponding (female) connector nearby with two unlabeled orange wires. photo at: https://picasaweb.google.com/lh/photo/SRXtb6tgnEcADl3vZqNRI9MTjNZETYmyPJy0liipFm0?feat=directlink
I had a hydraulic hose replaced at a garage and I suspect these connections were just not reconnected afterwards.

 

[OldMachinist]

THANKS! Found the correct connections and reattached. That would explain why I couldn't get pressure relief on the aux hydraulics. Discovered another unconnected connector while investigating, near the left foot pedal. Wire labels were 2720 on the black wire and 1740 on the orange wire. There is a corresponding (female) connector nearby with two unlabeled orange wires. photo at: https://picasaweb.google.com/lh/photo/SRXtb6tgnEcADl3vZqNRI9MTjNZETYmyPJy0liipFm0?feat=directlink
I had a hydraulic hose replaced at a garage and I suspect these connections were just not reconnected afterwards.

1740 comes from fuse #12 and 2720 is ground. This connector is for adding options so you would need to trace the 2 unmarked orange wires to see where they go.

 

[jhatchett]

1740 comes from fuse #12 and 2720 is ground. This connector is for adding options so you would need to trace the 2 unmarked orange wires to see where they go.

the two orange wires go into the left side control handle. I can probably attach a multimeter to figure out which switch on the controls opens/closes the pair.

 

[jhatchett]

THANKS! Found the correct connections and reattached. That would explain why I couldn't get pressure relief on the aux hydraulics. Discovered another unconnected connector while investigating, near the left foot pedal. Wire labels were 2720 on the black wire and 1740 on the orange wire. There is a corresponding (female) connector nearby with two unlabeled orange wires. photo at: https://picasaweb.google.com/lh/photo/SRXtb6tgnEcADl3vZqNRI9MTjNZETYmyPJy0liipFm0?feat=directlink
I had a hydraulic hose replaced at a garage and I suspect these connections were just not reconnected afterwards.

So I have been using the machine for awhile, since reconnecting the wires, with an attachment that uses the aux-hydraulics, a brush shark. Yesterday I disconnected the brush shark and used the bucket to stack debris and then went back to re-attach the brush shark. I couldn't get one of the quick-connects on so I don't think the pressure is being relieved. I loosened a fitting on the brush shark and was able to attach the quick-connect. What's the method for testing the relief valve? applying 12V to the wires and listening for the valve to shuffle? Is there a fuse dedicated to this circuit? I guess I need to get a service manual for this machine soon.

 

[HarryN]

So I have been using the machine for awhile, since reconnecting the wires, with an attachment that uses the aux-hydraulics, a brush shark. Yesterday I disconnected the brush shark and used the bucket to stack debris and then went back to re-attach the brush shark. I couldn't get one of the quick-connects on so I don't think the pressure is being relieved. I loosened a fitting on the brush shark and was able to attach the quick-connect. What's the method for testing the relief valve? applying 12V to the wires and listening for the valve to shuffle? Is there a fuse dedicated to this circuit? I guess I need to get a service manual for this machine soon.

How I was explained (on this forum) to relieve that pressure is this: With engine running at about half throttle, turn the ignition switch key to off and without stopping continue turning the key past the off position and hold for a few seconds as the engine is shutting down. Works great for me on my 763. It relieves the pressure at the aux coupling. Let us know if that works for you too.

 

[jhatchett]

How I was explained (on this forum) to relieve that pressure is this: With engine running at about half throttle, turn the ignition switch key to off and without stopping continue turning the key past the off position and hold for a few seconds as the engine is shutting down. Works great for me on my 763. It relieves the pressure at the aux coupling. Let us know if that works for you too.

Didn't know that procedure. I will try it as soon as I re-attach the brush shark. I have to get a #6 fitting replaced on the whip after over tightening and cracking it. Always something it seems.

 

[jhatchett]

How I was explained (on this forum) to relieve that pressure is this: With engine running at about half throttle, turn the ignition switch key to off and without stopping continue turning the key past the off position and hold for a few seconds as the engine is shutting down. Works great for me on my 763. It relieves the pressure at the aux coupling. Let us know if that works for you too.

Turns out that my ignition switch doesn't turn past the off position. My 763 has an "auxiliary pressure release" button on the left side control panel, but it pushing and holding it just shuts down the engine and doesn't seem to release the pressure, making attaching the quick connect almost impossible.

 

[HarryN]

Turns out that my ignition switch doesn't turn past the off position. My 763 has an "auxiliary pressure release" button on the left side control panel, but it pushing and holding it just shuts down the engine and doesn't seem to release the pressure, making attaching the quick connect almost impossible.

You must have a different set up them my 763F. Here are the pictures of both left and right side of the panels..... http://s128.photobucket.com/user/Ha...cat763FLeftSideControl001.jpg.html?sort=3&o=1
http://s128.photobucket.com/user/Ha...cat763FLeftSideControl001.jpg.html?sort=3&o=1