814 Repair Manual — Volume I — Page 212

Connect the feed pipe for the rear suspension and the security valve on to the security valve Tighten the pressure regulator bleed-screw ,. and put the height control lever in normal position. Allow the engine to turn until cut-out occurs then wait 10 seconds for the pressure to stabilize before stopping the engine. b) Note the drop in pressure on the dial gauge. If it exceeds 10 bars (150 psi) in 3 minutes, repeat the check.