New Machine Question

[Ronniels]

Kind if a question...kind of a "WoW...Check this out!" type posting.

I have a truck down (since last Thursday) and it's hurting, especially since my Ramteq is kinda attached to the truck!

So today I broke down and bought an additional little machine. Went to Home Depot and grabbed the "Special Buy" Coleman 4.o gpm 3500 psi for $799. This is one onbeleivably nice cleaning machine! Surprised me...

Question part... (I don't like Direct Drive btw...but this one is)
The Thermal Relief Valve blows when you let off the trigger more than 30 seconds, but closes as soon as you hit it again.
Will this stop when I get a chance to change the Unloader to where it dumps into and feeds from a water tank like a couple of my others do?
Also, when it is running the pump feels extremely hot but my one other direct drive unit (a 3 year old Karcher) has never felt hot like this...okuus the releif valve has never blown even when it was new and I didn't know anything about bypass and heat build up, etc. and would let it idle for 5, 10, 15 minutes without pulling the trigger (just didn't know any better)

And also it outcleans my nice 4 month old Eagle (13.0 Honda, 3.5/4000 AR Pump, Belt Drive) I mean it sprays and cleans like my 5.5gpm Ramteq

My Eagle is in good shape I thought...any ideas? I need to hook a gauge up to it and check it out I guess.

Also, on the new cheapie machine, it has a 13.5 horse Robin Engine (by Subaru?)
Anyone used or heard of them?

 

[oguard]

Starting with the pump temperature....direct drive pumps WILL get hot and fast, the thermal relief valve is set to release water to keep the temperatures in line but as they cycle they become less effective and eventually fail. If you send your bypass hose to a tank you will get a much larger heat sink that should prevent the TPI from cycling. The Karcher pump does not get as hot because they use axial pumps that tend to be more resistant to heat build up because the volume of water in by-pass exceeds the volume in the pump head.

All things being equal FLOW is always of more value than pressure. As well new nozzles will let you get both full flow and pressure in a controlled pattern; effectively cleaning better. In other words you most likely have a worn nozzle on your Eagle which will lower the pressure and make the spray pattern inefficient. Replace the nozzle at least once a Quarter. They are inexpensive, especially if you look at how important they are to the performance of your machine.

Robin was always built by Fuji Heavy Industries which also owns Subaru. Recently they renamed themselves Subaru as it holds more marketable value world wide than Fuji Heavy Industries, hence the name change. They have always been a good motor manufacturer but a second line due to distribution so they tend to be offered at lower OEM pricing and ultimately lower costs. If in doubt look to the reliability that has made the Subaru motor famous.