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Discussion Starter · #1 · (Edited)
Hi all,
Been reading up on the new R4045 and one thing I like is the air forcing the chem out of the line when cleaning. Has anyone fitted something similar to a 4940. It won't be as flash as the inbuilt of the 4045 but will still do the job. Or are there other ways less complicated to clean the boom out?
 

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On my 4940 I put end caps on the boom. Keeps the air out of the end of the boom so nozzles don't drip when shut off and no delay when they start up again. Also takes up the room at end of boom so they clean out better. I got them from deere I think they are called hypro express caps. Deere part number PM74333316 around 50 bucks each and need 22 of them for 11 section 120 foot boom. Also need a 200 dollar tool to install them but my dealer just let me borrow it.
Some guys just put ball valves on the end of each section for clean out.
 

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On my 4830 I put a valve and air chuck on the end of one of the inline filters. Then ran an airline from the air tank. It's not fancy but only cost $20. To operate, the sprayer engine has to be shutoff, but key on. shut tank valve off, turn pump switch on to make the gs3 think it's spraying, then hit the spray button on handle and cycle through each boom section. Have been doing this since my original 4700. Could automate it a bit with a solenoid, but would still have to get out to shut the tank valve. Could be done to pretty much any sprayer that has an onboard air system, or just use the air from the tender truck.
 

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Wilger also makes a half turn flush valve on the end of the boom. Threads onto a 1" NPT. Run about $25 per valve. Pretty compact and just a bit cleaner than having a ball valve off the boom (fits tighter into the boom as well)
 

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Discussion Starter · #5 ·
On my 4830 I put a valve and air chuck on the end of one of the inline filters. Then ran an airline from the air tank. It's not fancy but only cost $20. To operate, the sprayer engine has to be shutoff, but key on. shut tank valve off, turn pump switch on to make the gs3 think it's spraying, then hit the spray button on handle and cycle through each boom section. Have been doing this since my original 4700. Could automate it a bit with a solenoid, but would still have to get out to shut the tank valve. Could be done to pretty much any sprayer that has an onboard air system, or just use the air from the tender truck.
So the reason for shuting off the motor and having the gs3 running is to cycle the sections. Is there not enough air to run it with all sections open and does the on board air system of the JD have enough capacity to do the whole lot with our restarting it? Are there other methods of easily cleaning out the lines? But your idea dwh039 seems fairly simple. Thanks.
 
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