司钻要确保大钳销钉上的安全锁定弹簧被放到原位。
The Driller ensures that the safety latch springs are replaced on the tong pins.
安全阀阀盖应该采用不锈钢螺栓紧固，应该采用四分之一转锁定连接来所定安全阀的弹簧负载。
The relief valve cover shall be secured with stainless steel bolts and shall utilize a quarter-turn locking joint to capture the spring load of the relief valve.
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