250 to 300 psi .
400 on heavy soiled commercial.
Do you have a rev counter ? If not , get one

Run the machine at 2500 to 2600 rpm for carpets and 2200 to 2300 for suites.
The machine uses more fuel when its new. After about 250 hrs you will notice a big difference.
any questions just ask away mate.
My machine is just 12 months old now. Its a bit of a sharp learning curve at first

but I am a commited truckmounter now.

Chris