Double gunning and double fisting at the same time is a special talent lol.
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How’s the rinsing pressure compared to a washer, especially when you start to hit 3 story gutters. That’s where my washer comes in handy. I throw a 0010 tip on it and it’s able to just barely knock or crud on 3 story gutters that won’t disappear from SH due to how thick it is.
Both guns reach exactly the same height. With the gp wash down gun it hits just as high but with more force and volume than the assassin tip. I’ll make a video soon
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Wish I read this article before buying AR45 BP.
Since September 2021, I’ve replaced manifold, pump, and O-Rings by three different PW store mechanics. Last mechanic worked on last week. He Teflon taped 2 plugs and no leak first day out, second day back to leaking from top plug.
I’ve heard from so many people on PW boards, either they love this machine or hate it. About 50/50.
Well I don’t care what anyone says, 50% is not very satisfying and the company who makes AR45 needs to come up with better solutions. All in all it’s built cheap with too many plastic parts!
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In all fairness those pumps aren’t made for corrosive SH running through them….but you’re right it’s a love/hate with them. Unless you do a lot of bigger commercial jobs I don’t see the need for them in the residential setting. Just my opinion.
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Few things here to help with this. First of all don’t put it over 190 PSI unless you have to to get more reach. They say 300 but that’s only good for short bursts. Secondly when you start AND stop the machine either have your hand on the trigger or if the gun is too far away and you’re by yourself turn the pressure way down and then put it into bypass mode. Third maintenance is key always make sure you’ve got good fluids. Mine completely ran out of pump oil and the engine oil alarmingly fast. Additionally I made some changes and removed a total of five, yes five unnecessary 90s it came pre-plumbed with from E-spec, now the discharge barb goes straight to the the hose reel. Always flush it out really well especially after turning it off for the day. Last call and order as many spare parts as you can, o rings (all sizes) heads, barbs, gauge, pins etc.
First off no Teflon is needed so this mechanic introduced problems. Secondly I run 3 with employees using them. Training and knowledge is crucial to any system and especially these. A shockingly large number of vendors have zero clue how these things actually work.
Starting and stopping the system without the trigger pulled almost guarantees a stress failure will happen if not immediately. The system creates a pressure spike when starting and stopping. It needs a safe outlet (trigger pulled). The built in Unloader doesn’t function the same way a pressure washer one does as it doesn’t vent to a buffer tank with the majority of setups.
I’ve yet to see a complaint about them by anyone who understands how to run and maintain them properly. It’s like having a car and trying to run it with no oil or gas and saying the car is bad.
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First thing to confirm is if you really have the BP version. The LFP version has the viton seals & stainless hardware & the BP version does not. I know for a while they were putting the BP stickers on the LFP version in Italy. One way to confirm is to remove a couple of fittings & check the color of the 0/rings. If they are light green, then you have the LFP version.
Dago52
Do you think O rings are different sizes per the two models?
Robert (RT) Taylor
President | Motai Solutions, LLC
mobile: 407.421.0023
email: robert.taylor@motaisolutions.com
website: www.motaisolutions.com
I am not sure about the size, but the material is different.
I had no idea about different versions. @TexasPressureWashing are you aware of this? I bought mine at Envirospec and no options were available. What kind do you have? I don’t see anything stainless much less any metal on the plumbing, all plastic…
Have you ever started or stopped it not being on the trigger?
Starting and stopping the pump
To start the pump, proceed as described below.
- When starting the pump, keep the control unit in the full bypass position until the pump has primed.
- After starting the pump, and after the pump is primed, move the control unit into the pressure regulation
position. - During the first few hours of operation, check that the oil level in the tank remains between the minimum
and maximum limits. If top-ups are required, use A/R diaphragm pump oil, AR64532D.
To stop the pump, proceed as described below. - Reduce the pressure by rotating the lever to the full bypass position.
- Stop the pump.
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Does this mean move the top red lever back from bypass to the front?
I follow those steps religiously that Dez posted and the one time I forgot, blew an oring. I’m never on the gun when I start it.
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Yes. Always put in bypass before you start or shut off your machine. That keeps it from hammering the diaphragm. If you notice, when it’s in bypass mode, there’s no pressure reading on your gauge.
See page 3 - https://www.arnorthamerica.com/pdfs/manuals/AR45LFP_AR45bp_Diaphragm_Pump_Manual.pdf
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Hey I just recently bought a Ar45 pump today was my first day using it everything was going good and all of a sudden I lost all pressure. My oil was new when I started it now it’s dark like it’s been ran for 5 months. I can play with my bypass valve and pressure will come but soon as I open it back the pressure goes away. Can anyone possible tell me what could be the issue. Did I get a bad machine. I was running it at about 280-290
You have a air leak. If you used regular hose clamps get rid of them.
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It will live a lot longer if you never run it over about 190psi, right @Seandz ?
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Yep. And if yours came like mine with no brackets or feet holding the pump off of the engine and it shakes like hell for the first year you will have all kinds of fun problems. I found the brackets and feet in a bag in the bottom of the box that it came in much later. We had to modify the feet last week with washers to make sure it was a tight fit between the skid plate and the pump (installed the feet a few months back but a lot of play emerged). No longer shakes very much and seems to run much better than it ever has now…
