Interested In Advertising? | Contact Us Here
Warning!

 

Welcome to Clean It Up; the UK`s largest cleaning forum with over 34,000 members

 

Please login or register to post and reply to topics.      

 

Forgot your password? Click here

steven Banks

Tm pressure drop
« on: September 28, 2012, 09:15:35 pm »
Evening,
 is it normal for the pressure to drop from 400psi to around 250psi when the pull the trigger on the wand? Seems like a big drop to me.

Simon Gerrard

  • Posts: 4405
Re: Tm pressure drop
« Reply #1 on: September 28, 2012, 10:14:01 pm »
Steve,
It should only drop by around 50psi. Your check valves may need changing.

Simon

nevil

  • Posts: 478
Re: Tm pressure drop
« Reply #2 on: September 28, 2012, 10:15:49 pm »
I think you need a spare blower Steve. ::)

John Kelly

  • Posts: 4461
Re: Tm pressure drop
« Reply #3 on: September 28, 2012, 10:26:36 pm »
Check your inlet filter it may be starved of water.

garyfindlay

  • Posts: 788
Re: Tm pressure drop
« Reply #4 on: September 28, 2012, 10:51:52 pm »
air lock?

richie

  • Posts: 1179
Re: Tm pressure drop
« Reply #5 on: September 29, 2012, 12:43:46 am »
What machine is it you have.  In the past i have found that with some HydraMaster truckmounts if the pressure drops more than 50 psi then it may be the regulator.  Wind it all the way out, remove the retaining clip and washer, remove the bullet like thing.  Give the bullet a clean apply a tiny amount of grease then fit it all back together.

Jim_77

Re: Tm pressure drop
« Reply #6 on: September 29, 2012, 02:16:42 am »
Is it cleaning OK?!  Have you noted the pressure drop to be different in previous times, with exactly the same wand/hose length/jet sizes?

The higher the total jetting the more the pressure will drop when wand trigger pulled.  It really does not matter as long as everything is working properly.

steven Banks

Re: Tm pressure drop
« Reply #7 on: September 30, 2012, 06:31:25 pm »
Steve,
It should only drop by around 50psi. Your check valves may need changing.

Simon

Could be, I'll take a look Simon.
Thanks for the advice guys, I'll take a good look at the machine.

I was thought it could be the pump seals in the cat pump

Many thanks,
Steve.

Simon Gerrard

  • Posts: 4405
Re: Tm pressure drop
« Reply #8 on: September 30, 2012, 07:05:54 pm »
Steve,
Take them out one at a time, if one is damaged it will be fairly obvious. Failing that it could be the seals which is a bit more fiddly.

Simon