80-0420-23 POWER TONG
Manual № TM12012
Section 5
Page 5.17
©2008-2017 McCoy Global
Maintenance
5.10 TUBULAR CONNECTION EQUIPMENT DE-COMMISSIONING AND SHIPPING (CONTINUED):
17.
Repair or replace all leaking hydraulic fittings or hoses before proceeding.
18.
Use a solvent-based cleaner on rags to wipe all external surfaces to remove all residual grease or hydraulic
fluid. Once the exterior surfaces have been de-greased, wipe all external surfaces with clean water to remove
residual solvent.
19.
McCoy recommends that an anti-corrosive agent such as Tectyl
®
506 be applied to all external surfaces
EXCEPT cylinder rods (including chain slings). Refer to manufacturer data sheets for proper application and
safety information.
Allow the anti-corrosive coating ample time to dry - refer to manufacturer data sheets for drying times at
room temperature.
If possible, store in a sealed, climate controlled environment. If isolated storage is not available, McCoy recommends storing your
wrapped equipment in a secure, out-of-the-way location, using silica gel desiccant to reduce the humidity within the wrapping. As
a guideline, use 125 g. of desiccant for each cubic meter of space, or 3.5 g. per cubic foot.
Calculation Of Required Desiccant:
1. Calculate the trapped air volume by measuring the outside dimensions of the tool to be stored, and treat that as the
volume to be stored. For example, the approximate external dimensions of this tool are 102” x 92” x 67.5”, which
calculates to an approximate volume of 633420 in
3
, or 367 ft
3
(10.392 m
3
).
2. Multiply the calculated air volume, in cubic feet, by the recommended amount of desiccant per cubic foot. Carrying
forth the example used in the previous step, the required desiccant charge would be 3.5 g. x 367 ft
3
, equaling 1.285
kg. Several manufacturers offer silica gel desiccant in packaged quantities of 125 grams per bag, so ten to eleven
packages of desiccant would be required. Please keep in mind that this is a guideline only - more or less desiccant
may be required in extreme environmental conditions.
For best corrosion resistance the equipment should be removed from storage and exercised on a regular basis, depending on
the storage environment. McCoy recommends that for equipment stored in a salt-water maritime or exposed dusty environment,
repeat steps 9 through 24 monthly. For equipment stored in isolated storage in a non-maritime environment, repeat steps 9
through 24 quarterly. Replace desiccant packs at this time - depleted desiccant packs may be treated as regular dunnage.
Shipping Instructions:
The following procedure lists the steps to be followed to prepare your tong for shipping.
1. If not already done remove accessories (tong jaws, load cell, torque gauge, etc.) McCoy recommends wrapping
these items in protective wrap and placing in a separate wooden crate.
2. Place the equipment on a sturdy pallet constructed of 4” x 4” cross-members and 2” x 4” flooring. Ensure the pallet
is large enough to accommodate the wooden crate containing the tong accessories (see illustration 5.12.1)
!
CAUTION
DO NOT ALLOW ANTI-CORROSIVE AGENTS TO CONTACT CYLINDER RODS. CYLINDER ROD
DAMAGE WILL OCCUR.
20.
Apply grease or heavy oil to all exposed cylinder rods.
21.
Allow the anti-corrosive coating ample time to dry - refer to manufacturer data sheets for drying times at room
temperature.
22.
Wrap entire assembly in 100 gauge (1 mil) corrosion-inhibiting wrap, at least 3 layers thick. Attempt to ensure
that the tool is well-sealed within the wrapping, including the bottom.
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