MCCOY KT5500 - 5.11 TUBULAR CONNECTION EQUIPMENT RE-COMMISSIONING PROCEDURE

©2008-2017 McCoy Global
Manual № TM12012
80-0420-23 POWER TONG
Section 5
Page 5.20
Maintenance
5.11 TUBULAR CONNECTION EQUIPMENT RE-COMMISSIONING PROCEDURE
Perform the following recommissioning procedures when removing tubular connection equipment from short or long-
term storage back into regular service. These procedures are essential for ensuring proper equipment preparation and
operation. The following procedures also assume that the decommissioning and storage procedures recommended by
McCoy have been strictly observed.
7.
Energize hydraulic power to the tool. Ensure that supply pressure is at or above the tong’s specified operating
pressure, and that the return pressure is less than 350 PSI.
8.
Perform a thorough inspection of pressurized hydraulic lines and fittings. Leaking hydraulic fluid lines or fittings
must be replaced before returning the equipment to service.
9.
Perform a thorough inspection of all seals. Any seal that is leaking or “weeping” must be replaced before return-
ing the equipment to service.
10.
Rotate tong at low speed for 5 minutes while monitoring pressurized seals and hydraulic lines. If a seal, line, or
fitting begins to leak while tong is rotating, it must be replaced before returning the equipment to service. Finish
this step with the rotary gear opening facing the gear train. De-energize the power unit.
11.
Inspect all flexible hydraulic lines for signs of wear, blistering, or any other signs of potential failure - replace if
signs of potential failure are identified.
12.
Inspect the gear train housing. If the amount of grease is inadequate, liberally grease the gear train through the
access panel, and through the opening in the rotary gear.
13.
Inspect top and bottom brake band linings - replace if necessary. Unequal wear of the brake bands indicates that
the brake band tension is not evenly adjusted. Refer to the maintenance section of the manual for instructions
on properly adjusting brake bands. Ensure that all grease is wiped from brake band linings and the parts of the
cage plates that come into contact with the brake band linings.
14.
Re-install access panel. Install a set of pre-inspected jaws that are the correct size for the pipe or casing being
run.
15.
Install load cell. Perform a visual inspection and replace any cracked, broken, or distorted components including
links and chains.
16.
Inspect the load cell anchor pins. Replace the anchor pins if cracking or metal distortion is seen.
17.
Re-energize hydraulic power to the tool.
Continued on next page...
1.
Remove all protective plastic wrapping. Exhausted desiccant packs within the wrapping may be disposed of with
the regular garbage. Remove all remaining shipping and/or storage material including straps, blocks, plugs, wire-
ties, etc. Ensure the backup oats freely on its suspension chains.
2.
Remove the access panel on the side of the tong directly adjacent to the shifter mechanism.
3.
Wipe excess grease or heavy oil from exposed cylinder rods.
4.
Perform a visual inspection of all lifting points - visibly damaged components (cracks, broken lugs, distorted
metal, etc.)must be replaced or repaired before placing tong in service. Inspect all chains, master links, and
turnbuckles. Damaged components must be replaced before placing the tong in service. If your company
requires yearly certication of lifting equipment, ensure that the most recent test date falls within the past year.
Perform recertication if necessary.
5.
Perform a liberal lubrication of the equipment - refer to lubrication diagrams on page 5.6. Generously ll the
gear train housing with grease through the opening in the rotary gear.
6.
Connect the equipment to a hydraulic power unit. Ensure all lines are fully made up to prevent equipment
damage from excessive back pressure. Do not neglect to connect the motor drain.
!
WARNING
FAILURE TO ENSURE THAT THE SELF-SEALING SUPPLY AND RETURN LINES ARE FULLY MADE UP
MAY RESULT IN CATASTROPHIC EQUIPMENT FAILURE.