The replacement of roller cans should be carried out as follows:
1. First, prepare the new roller can ear to the proper position of the auxiliary wellhead.
2. Stop the cage until it is conducive to the construction site. The wellhead level is around 800.
3, maintenance personnel first hang the belt, put the board. The old roller cans are locked in season with a brown rope, and the brown rope is passed through the crossbars of the gate and put on the strength.
4. The maintenance personnel shall remove the wrench anchor bolts (use oxygen acetylene if it is difficult to dismantle) and use a small bucket to do a good job. During the operation, prevent the objects from falling into the wellbore and damage the wellbore equipment.
5. The maintenance personnel removed the old roller can ear and moved it to a safe place. The new roller cans ear with brown rope season firmly, the brown rope from the fence door beam and put on a strong.
6. Raise the new roller cans to the base position, put on the anchor bolts and tighten.
7, maintenance personnel will remove the brown rope. Adjust the distance between the new roller can ear and the steel can ear.
8. Loosen the new roller canister ear cylinder fastening bolts with a large wrench and use a wrench to adjust the stroke of the cylinder until the data described in step 9 is met.
9. When the new roller cans are adjusted well, the maintenance personnel should run once with the cans to observe the operating conditions of the cans, and adjustments need to be made before adjustment is made until the can ears operate well.
10. Clean up the site and the construction is completed.
Roller jar ear safety precautions:
1. Before the construction, the technical responsible person shall implement this measure to all construction personnel;
2. During construction, we must obey the unified command of the person in charge of construction, strictly abide by all kinds of operating procedures and follow the regulations.
3, construction personnel with personal tools and labor protection supplies.
4, the use of equipment should stay rope.
5. If accidents occur during the construction process, they shall be handled by the person in charge of construction.
