Hydraulic problem on 660

cat75 · 10-02-2011, 08:25 AM

Yesterday I made about a 6 mile

move and everthing was working fine when I finished the field pulled in the next one and started everything went about a 1/4 mile with auto height and tilt working got to a corner went to lift head and almost nothing lifted very slow checked for leaks ok steering auger swing reel lift all works shut off reel and up down is better not as good but better, changed hyd filter still the same. Decided to just drive awhile and try to finish the day, after about 20 min it seemed to get better, after an hr it seemed to work ok in auto mode but it still lifts slow my raise rate was about 10 seconds before now it is about 15. Any one seen this before or have any good ideas as to what happened.

masseypride · 10-02-2011, 09:24 AM

Check the grounds on valve block on the right side of the combine. Look for a loose contact on that valve.

Masseypride

cat75 · 10-02-2011, 09:30 PM

checked hyd pressure had 2500 psi, cleaned screen in line by stack valve, opened and closed accumulator, nothing obvious, did the same thing today started out sluggish then got back to normal for a while then got slow again, seems to get worse going up steep hills, no leaks wires all tight, seems to be located in the up & down and reverser,

10-02-2011, 08:25 AM	#1 (permalink)
cat75 Senior Member Join Date: Mar 2011 Posts: 194	Hydraulic problem on 660 Yesterday I made about a 6 mile move and everthing was working fine when I finished the field pulled in the next one and started everything went about a 1/4 mile with auto height and tilt working got to a corner went to lift head and almost nothing lifted very slow checked for leaks ok steering auger swing reel lift all works shut off reel and up down is better not as good but better, changed hyd filter still the same. Decided to just drive awhile and try to finish the day, after about 20 min it seemed to get better, after an hr it seemed to work ok in auto mode but it still lifts slow my raise rate was about 10 seconds before now it is about 15. Any one seen this before or have any good ideas as to what happened.

10-02-2011, 09:24 AM	#2 (permalink)
masseypride Banned Join Date: Apr 2007 Location: Kansas Posts: 469	Check the grounds on valve block on the right side of the combine. Look for a loose contact on that valve. Masseypride

10-02-2011, 09:30 PM	#3 (permalink)
cat75 Senior Member Join Date: Mar 2011 Posts: 194	checked hyd pressure had 2500 psi, cleaned screen in line by stack valve, opened and closed accumulator, nothing obvious, did the same thing today started out sluggish then got back to normal for a while then got slow again, seems to get worse going up steep hills, no leaks wires all tight, seems to be located in the up & down and reverser,

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