Blohm + Voss Oil Tools GraySpin Mark 40, Technical Documentation Manual

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19
Hyraulic Lift Cylinder Operation (Optional)
Please refer to the instalation section for proper installation procedures such as attaching to
the mast, attaching the fixed line, back up cables, connecting the hydraulic line, balancing
screw and pipe size adjustment.
Check chain for tightness. Do not allow for slack. Motor capscrews must be tight.
The operation of the Mark 40 is very simple.
1. With the doors open, swing the Mark 40 into position on the drill pipe.
2. Raise or lower the Mark 40 by operating the lift valve. Position the Mark 40 on the pipe
approximately 12” above the tool joint. Make sure that you do not run the spinner rollers
on the pipe upset or tool joint.
3. Close the doors, clamping the spinner onto the drill pipe. This is accomplished by pulling
the door valve out as far as possible. The door valve is located on the bottom of the
spinner.
4. Activate rotation of the drill pipe by pulling the throttle valve handle out. Rotation of
the drill pipe can be changed (spin-in, spin-out) by reversing the positions of the quick
disconnect located at the air motor.
5. Open the spinner doors by pushing in the door valve knob.
6. Move the spinner out of the way.