just a little tip
when starting on stand remember to put the number 1 gene on line before removing the ground power as this is not included in the checklist for some reason, this should be done before moving onto the engine crossbleed start.
blinkz, if memory serves me correct my NG only need 30psi to ensure engine start with a max of 60psi allowed. you will find the info in the supp procedures.
737 queen of the skies
hope this helps brown eyes,everything else blinkz says is spot on