Question about Chapin Industrial 3.5 Gallon Viton Concrete Open Head Sprayer #1949

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I have a Chapin Hand sprayer #1949 3 1/2 gal. I need to know how to get the pump apart to install a Industrial repair Kit #6-4627. Thank you. Don H.

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Posted on Jan 02, 2017

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jas247
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SOURCE: I e-mailed a question on a Chapin Hand Sprayer

Welcome to FixYa!

"I have a Chapin Hand sprayer #1949 3 1/2 gal. I need to know how to get the pump apart to install a Industrial repair Kit #6-4627."

jas247_47.gif

TO UNLOCK PUMP:
Turn handle counterclockwise until 3-prong clamp is loose.
Then rotate clamp counterclockwise to stop and lift out.

Thank you for using FixYa.
Keep me posted.
Jas247

Posted on Mar 23, 2011

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emissionwiz
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SOURCE: I e-mailed a question on a Chapin Hand Sprayer

You need to comment back on the email link you were sent. Do not start a new thread.

Posted on Mar 23, 2011

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If sprayer doesnt seal against pressure, I suggest check cover gasket A (image 1). Check pump cylinder gasket B (image 2) and additionally, check the procedure if pump dont build pressure. on how to remoce pump cylinder on follow lines.

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If pump doesnt build pressure... in most instances, failure of the pumo to build air pressure in the sprayer is due to dry or worm plunger cul leather. To work on cup leather, always remove plunger from pumo cylinder. Do not attempt to oil cup leather through breather hole in **** cap.

First, unthread pumo cap A (image 1). If cap is too tight, and if pumo will build even slight temporary pressure, pressurizing the tnak will make it easier to loosen cap. Once cap is lossened, release tank pressure. Hold pump cylinder by inserting hand through tank filler openning (image 2), and unscrew cap all the way. Pull plunger from cylinder, and remove cylinder from inside the tank.

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Place a few drops of clea oil (not heavier than SAE 30) on leather, and massage into leather until it is soft. Replace plunger cup leather if damaged (image 3). to remove plunger leather assembly, use coin rather than screw driver in the slot of the plunger cup retainer. To reassemble, hold pump cylinder in tank openning, with squared edge of flange, at top of cylinder, toward tank wall.

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Hope this helps to solve it.

Sep 17, 2011 | Chapin Industrial 3.5 Gallon Viton...

1 Answer

I was spaying and pumping up the pressure, when pump went slack. I would try and pump it up , but spray would just dribbvle out and was weak in pressure


Hi and welcome to Fix Ya, I am Kelly.

One of the seals has failed in the pump. i.e cut o-ring or a leather rolled out of place.
Go to this link.. http://www.chapinmfg.com/PartsAccessories.asp
Find your model number and on the far right of the page is the repair kit for your sprayer.
This is the 6-6180 repair kit:
http://www.chapinmfg.com/ShowParts.asp?PartNum=6-8180
This is the 6-1925 repair kit:
http://www.chapinmfg.com/ShowParts.asp?PartNum=6-1925
The repair kits above are examples only... find the kit that is for your sprayer and order it.
Once you find and replace the damaged seal it will work fine.
Thanks for choosing FixYa,
Kelly

May 16, 2011 | Chapin Garden

2 Answers

I e-mailed a question on a Chapin Hand Sprayer #1949 5 days ago and have not heard from anyone. Don


Welcome to FixYa!

"I have a Chapin Hand sprayer #1949 3 1/2 gal. I need to know how to get the pump apart to install a Industrial repair Kit #6-4627."

jas247_47.gif

TO UNLOCK PUMP:
Turn handle counterclockwise until 3-prong clamp is loose.
Then rotate clamp counterclockwise to stop and lift out.

Thank you for using FixYa.
Keep me posted.
Jas247

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Push the handle all the way down turn it counter clockwise and unscrew the pump handle and lid open it up put in your product and install if reverse order then Pump it to spray. Hope this helps if you need more help let me know. also sometimes they stick in this case run hot water over the cap area.

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I recently ordered just the plug on the bottom of the shaft and it solved the problem. the company was really good about sending the plug right out for free at that. it worked and im back in business. just replaced it. no taking the pump apart.

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