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| There is a new remote spool & spring and software upgrade that is supposed to take care of erratic flow running orbital motors. I'll look that up and edit this reply later this evening.
And yes, that means if the wheel doesn't squeak, it doesn't get greased...
EDIT: Here's part of the info from Tech Support. Your dealer has access to this info and more.
Symptom :
Remote flow is variable / erratic
Resolution :
Troubleshooting EHR valves erratic flow
When operating a hydraulic motor the hydraulic oil flow from the remote valve may become unstable causing the hydraulic motor to surge.
The most common problem reported is when running a planter / air seeder vacuum fan hydraulic motor from one or more remotes, when a different remote is activated the hydraulic motor flow may decreases/increases and the vacuum fan speed may decrease/increase.
To improve this condition the remote valve main spools, part numbers 47429154 has been modified.
In the future a new main spool assembly will be made available when the supply of modified 47429154 main spools is exhausted. The main spool have been improved by adding an additional small hydraulic oil bleed to the spool.
In addition to this improved main spool it is recommended the following documents be referenced for improvement to planter operation before extensive service is performed on the remote valve(s).
For CASE IH planters install the 84537688 flow control cartridge as described in CASE IH Service Bulletin 2012-037, 'The Vacuum Fan or Bulk Fill Fan Surges'.
For John Deere planters see John Deere bulletin 76912, Vacuum Motor Surging.
For Kinze planters, see Kinze bulletin G1K492 'Edgevac Fan Pressure Stabilizer Kit'.
After review of the recommended bulletins above, if required, order an improved remote valve main spool part number 47429154. It is recommended that only the remote valve section(s) that are used for fan operation be updated with the improved remote valve main spool.
For Steiger / Quadtrac or T9 series tractors it is recommend to update remote valve number 3 or higher, power boost is activated when these remote valves are used in motor mode. It is not required to modify all remote valve sections.
It is also recommend that the O-rings between the valve sections be replaced if a valve section is removed on all tractor models.
Note: As of September 10, 2013, the Main Spool part number 47429154 is shown as not serviceable, (NSS). This is incorrect. The main spool is available as a service part. The individual parts of the assembly are not.
INSTRUCTIONS:
Remove the remote valve(s) section from the tractor if required, using the service manual procedure.
Note: It is not necessary to remove the valve sections on Steiger / Quadtrac or T9 Series tractors to perform remote valve main spool replacement except for one remote vale section.
With the valve section removed (not necessary on Steiger / Quadtrac or T9 Series tractors), from the tractor remove the six socket head cover screws, figure 1. This is the end cover located at the opposite end of the remote valve section from the pilot head assembly. The two O-rings found under the cover should be saved and reused.
Carefully remove the main flow control spool from the remote valve section. See figure 2.
Lubricate the improved main spool with hydraulic oil and reassembly the valve section. Install the two O-rings saved from step 2. Tighten the six valve spool cover screws to 27 31 Nm (19 22 lbft/ft)
Note: Make sure the two O-rings are properly positioned.
If required reinstall the remote valve onto the tractor using new O-rings. Apply Loctite 242 to the threads of the through bolts and torque mounting nuts to 41 47 Nm (30 35 lbft/ft).
Software Update:
Using the electronic Service Tool (EST) download the updated pilot head software version 1.4.0.0 or higher into each of the remote valves. All remote valves must be updated with the new software. This software will improve calibration and temperature compensation within the remote valve.
After the software is updated all the remote valves must to be calibrated using the calibration tool, 380001903.
Run the tractor and inspect for leaks.
Production:
The latest level EHR valves were introduced in production from the following serial number:
ZDRC05797, July 2013.
WARRANTY: Standard warranty terms apply.
Edited by Redwrench 4/15/2014 19:21
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Power beyond port question......
