Close valve fully three times for three seconds and record highest pressure indicated each timAll three readings must be above pump relief pressure specifications and within 345 kPa (50 psi) of each other.

• 紧闭阀门三次，并记录每次的最高压力。三次读数均需高于油泵释压规格，且读数间的差异不得高于345千帕(50 psi)。