Base Pressure

After performing pressure Relief Valve test and with leveling valve lever in neutral position, turn engine off. Note pressure on gauge. After about 5 minutes note pressure on gauge. Leave gauge connected for approximately 12 hours and again note reading on pressure gauge. All pressure readings should be the same. Remove gauge and replace bleed screw. Fill level control system by starting engine and moving leveling lever to fill position. Make sure that reservoir is filled to proper level.