Rigging Up the Service Rig
Before rigging up, guy line anchors are set into the ground and pull tested. The service rig is then spotted over the well.
These two workers are setting up the service rig guy lines.
The truck- or trailer-mounted rig is stabilized and leveled by manual or hydraulic jacks. All guy lines are uncoiled and laid out to remove kinks or knots.
The mast is readied for raising, then raised and guyed into place. The derrick emergency escape device is rigged up and the work platform is readied for service operations.
Potential Hazards
- being electrocuted by overhead power lines
- slips, trips, and falls as a result of unstable or slippery conditions
- being caught between the mast and mast cradle or being struck by or caught in guy lines and cables when mast is being raised
- being struck by a toppling mast if the carrier shifts
- being sprayed with oil if the hydraulic cylinder or hoses fail as mast is being raised
- twisting and falling of the mast if a guy line or anchor breaks or fails
- receiving strains and sprains
- getting hand, finger, and foot injuries during rig up
- getting the climbing assist counterweight tangled in the mast
In the next section, we will take a look at the possible solutions to the hazards that are involved in rigging up the service rig.
Knowledge Check Choose the best answer for the question.
3-3. Why are all guy lines uncoiled and laid out?
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