Export Control
EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.Copyright
© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).Applicability
All
Common Information
TASK 70-53-01-620-501 Bearing Preservation
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 01-233 BARRIER MATERIAL | 0AM53 | CoMat 01-233 | ||
| CoMat 02-093 BARRIER MATERIAL | 76209 | CoMat 02-093 | ||
| CoMat 02-095 POLYETHYLENE PREFORMEDBAGS | LOCAL | CoMat 02-095 | ||
| CoMat 06-085 CORD, Nonwicking | 0H1N6 | CoMat 06-085 | ||
| CoMat 06-086 TIES | 18992 | CoMat 06-086 | ||
| CoMat 10-022 PRESERVATIVE OIL | LOCAL | CoMat 10-022 | ||
| CoMat 10-125 LUBRICATING AND PRESERVATION OIL | LOCAL | CoMat 10-125 | ||
| CoMat 12-002 POLYETHYLENE SHEET | LOCAL | CoMat 12-002 | ||
| CoMat 12-039 BARRIER MATERIAL-WATER/VAPOR PROOF,GREASE PROOF, HEAT SEALABLE | LOCAL | CoMat 12-039 |
Spares
NONESafety Requirements
WARNING
Procedure

CAUTION
SECURE BEARINGS THAT HAVE PARTS THAT COULD DISASSEMBLE; USE CoMat 06-085 CORD, Nonwicking, OR CoMat 06-086 TIES, OR PLASTIC STRAPS.NOTE
This procedure is for preservation of bearings after cleaning or inspection. For bearings requiring cleaning refer to the SPM TASK 70-11-22-300-503.Make sure the bearings are clean.
NOTE
CoMat 10-125 LUBRICATING AND PRESERVATION OIL Lubricating and preservation oil is a long-term preservation oil that is compatible with synthetic engine oil, so it does not have to be removed before the installation of bearings into the engine.CoMat 10-125 LUBRICATING AND PRESERVATION OIL Lubricating and preservation oil is unlike some of the thick preservation oils of the past. The removal of these oils is necessary to prevent foam and black oil and this removal is a longer procedure.Put the bearings fully into CoMat 10-022 PRESERVATIVE OIL or CoMat 10-125 LUBRICATING AND PRESERVATION OIL for at least one minute. For assembled bearings turn the bearing to make sure the preservation oil gets on all the surfaces and apply a second coating by a short dip. Keep mated parts in matched sets.
NOTE
Both units of a duplex bearing must be kept together during each of the methods that follows:Put the bearing in a CoMat 02-095 POLYETHYLENE PREFORMEDBAGS pre-formed or a bag made from CoMat 12-002 POLYETHYLENE SHEET.
Polyethylene bag method.
Put the bearing between two CoMat 12-002 POLYETHYLENE SHEETs.
Polyethylene sheet method.
Put the bearing in CoMat 02-093 BARRIER MATERIAL flexible, greaseproof, waterproof barrier material with the glossy side against the bearing.
Not heat-sealable barrier material.
Put the bearing in a heat-sealable, flexible, greaseproof, water/vaporproof barrier material bag or between two heat-sealable, flexible, greaseproof, water/vaporproof barrier material sheets (CoMat 12-039 BARRIER MATERIAL-WATER/VAPOR PROOF,GREASE PROOF, HEAT SEALABLE or CoMat 01-233 BARRIER MATERIAL).
Heat-sealable barrier material.
Protect the bearing from moisture by one of the methods that follow:
SUBTASK 70-53-01-620-002 Preservation of Bearings
