5. Insert the safety pin.
Lock the safety pin with safety clip.
Do not proceed until you have completed this step.
WARNING!
6. Close the blow-out ball valve under isolation valve.
a. Lift up the isolation valve handle locking plate.
b. Open the isolation valve by turning the valve handle 90°. The valve is open when the
ball valve handle is parallel to the retractor and sensor.
Chapter 11 – Safe-Drive
193
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