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Jswintex 08-12-2012 13:35:04 216.215.93.50 Report to Moderator	I have a John Deere 700 Twin Rake. I have had this rake for several years and yesterday we started the day and the rake baskets would only turn at half speed. Moves very slow at idle and only half speed at high idle on the tractor. We checked the tractor and it runs fine. I switched the lines and same problem. The other side of the hydraulics on the rake (cylinders that operate the raising the baskets for travel and opening/closing the back of the rake)work normal. When I engage the basket tines to rake hay, I can tap on the small hydraulic box, on the back of the rake, it will speed up and act normal. There is two screws (caps?) on the sides of this box with springs inside. Will this have anything to do with my problem? Has anyone else had this problem? [Reply]   [No Email]
cannonball 08-13-2012 06:28:12 98.20.37.65 Report to Moderator	Re: J.D. 700/ Vermeer R23A Hay Rake in reply to Jswintex, 08-12-2012 13:35:04   The ball is probably gone, or not on seat...I took and brazed the ball to the #5 in jdseller's picture, would put in new ball and loose a line and bang ball would be loose inside, so i got tired of that...the one inlet line is on is a 400 psi crack pressure and the other is 2000 psi..As JDseller said it is just a cushion valve..the R23a is different...do you know that you can put the 23a-2300 bearings on the early rakes by just using a 3/4 fine thread bolt..have 2 here one has completely new style bearings...have used it that way for about 7 years and replaced 3 bearing and it sits out all the time... http://www.cylinderservices.net/catalog.asp?prodid=500064 Untitled URL Link [Reply]  [No Email]
Jswintex 08-13-2012 07:17:21 174.253.116.113 Report to Moderator	Re: J.D. 700/ Vermeer R23A Hay Rake in reply to cannonball, 08-13-2012 06:28:12   This is going to sound really bad, but I don't think I have anything except springs. I took those apart this weekend and only saw springs. I'll have to look again. By replacing these parts, would it make the rake spin faster? The 705 rakes seem to spin faster the 700 I have. [Reply]  [No Email]
cannonball 08-13-2012 12:54:14 98.20.37.65 Report to Moderator	Re: J.D. 700/ Vermeer R23A Hay Rake in reply to Jswintex, 08-13-2012 07:17:21   yes, the balls probably have fallen inside and may have moved down the line on the large one.....you need to understand they hyd of this rake...the pressure comes from tractor and goes thru flow divider and then to the cushion valve,from the cushion valve to the motor and then to other motor back to cushion valve.. as JDseller said if you stop the hyd fast something has to give, might not be just then but at some point it will, so they add the cushion valve to bypass the fluid when the motors keep running(they act as a pump then)the cushion valve also has a relief on it just in case the motors stop while tractor is still putting pressure on line..don't know what tractor you are using, but do know newer tractors go up to 2900 psi...so without the balls nothing will work right...I have put them in with heavy grease on the end..so good luck and I have got buy by taking a male hyd quick connect and cut it where ball would come out and used it.. [Reply]  [No Email]
JDseller 08-12-2012 23:00:41 208.126.196.144 Report to Moderator	Re: J.D. 700/ Vermeer R23A Hay Rake in reply to Jswintex, 08-12-2012 13:35:04   The valve you are describing is the cushion valve. It is there to protect the motors if the SCVs are suddenly shut off. The baskets can coast to a stop. With out this valve the motors could snap the output shafts if they where shut off suddenly. You can plumb around it to just finish the current job. JUST REMEMBER TO not go to the middle of your SCV control. This will lock the motors. Run the motors in the down position and then go to float to shut the rake off. I have posted a picture of the cushion valve. I would try to check it out to see if it just has a piece of dirt/grass stuck in one of the check balls. You can only buy the orings for it. If anything else is wrong you have to replace the whole valve [Reply]  [No Email]
ihman73 08-12-2012 20:41:04 67.43.125.34 Report to Moderator	Re: J.D. 700/ Vermeer R23A Hay Rake in reply to Jswintex, 08-12-2012 13:35:04   I doubt it is a hose if you can tap on that block and get it to work better. I'd sooner believe that there is a check ball and spring or something that is sticking, or something obstructing the aforementioned parts. Debris in the system like a piece sluffed off the inside of the hose etc. I would bleed the pressure off and take out the plug and see what you find. Just be careful that you don't lose a part, a ball in front of a spring can get away from you when you take that plug out. [Reply]  [No Email]
ihman73 08-12-2012 13:37:40 67.43.125.34 Report to Moderator	Re: J.D. 700/ Vermeer R23A Hay Rake in reply to Jswintex, 08-12-2012 13:35:04   Sounds like you have a sticking part inside that box. [Reply]  [No Email]
Jswintex 08-12-2012 13:48:43 216.215.93.50 Report to Moderator	Re: J.D. 700/ Vermeer R23A Hay Rake in reply to ihman73, 08-12-2012 13:37:40   Is it the springs? Box worn? Could a kinked/mashed hose cause this problem? It acts just like it is not getting enough fluid. [Reply]  [No Email]