Author	[Modern View]
Neal in WI 10-26-2012 10:11:09 96.60.53.11 Report to Moderator	Working on a 4000 that has no hydraulics for 1-2 minutes after tractor sits for an extended period of time (a week or more). If the tractor is run daily the problem is not noticed. Main pump has to be losing its prime some how. Any ideas would be appreciated. [Reply]   [No Email]
Brent in WI 10-27-2012 17:55:52 68.113.232.205 Report to Moderator	Re: 4000 hydraulic problem in reply to Neal in WI, 10-26-2012 10:11:09   Another possibility could be something stuck in the charge line check valve located on the side of your transmission. My 2520 had a piece of metal stuck in there holding the valve open. [Reply]  [No Email]
Tx Jim 10-26-2012 12:01:24 67.142.163.27 Report to Moderator	Re: 4000 hydraulic problem in reply to David G, 10-26-2012 10:11:09   Quoting Removed, click Modern View to see b&d There are no 4000 compact utility tractors but there was a 4010 CUT. [Reply]  [No Email]
buickanddeere 10-26-2012 13:01:46 216.183.150.110 Report to Moderator	Re: 4000 hydraulic problem in reply to Tx Jim, 10-26-2012 12:01:24   You are correct. I was thinking 4000 series. Wonder if there is a loader on the tractor or any other alterations /additions to the tractor? [Reply]  [No Email]
Tim S 10-26-2012 10:51:50 75.60.203.181 Report to Moderator	Re: 4000 hydraulic problem in reply to Neal in WI, 10-26-2012 10:11:09   For one thing are you keeping your foot on the clutch pedal as you start it?? The transmission pump will not turn, or pump till the clutch is up. #2 the transmission pump could be worn enough to take a moment to pick up prime. #3 there could be a component leaking internally causing a bleed off. On late model 4020"s and 4000"s the PTO valve is often the cause for a leak off. [Reply]  [No Email]
buickanddeere 10-26-2012 10:47:05 184.151.61.77 Report to Moderator	Re: 4000 hydraulic problem in reply to Neal in WI, 10-26-2012 10:11:09   4000 Waterloo chassis from the early 1970"s? Or a compact utility from the late1998 or later [Reply]  [No Email]
rusty wheel 10-26-2012 10:45:34 75.180.23.218 Report to Moderator	Re: 4000 hydraulic problem in reply to Neal in WI, 10-26-2012 10:11:09   If it's loosing it's prime, the oil has to be replaced with air, probably on the suction side of the pump, since a leak on the pressure side would show up as an oil leak when it's running. An air leak on the suction side would also explain why it takes so long for the pump to load. [Reply]  [No Email]