gek 119187 revision 00 august 2012 cf34 - :::...
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CF34-10E Fan Blade Lubrication Photo Standards
CF34™
GEK 119187 Revision 00 August 2012
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
GE PROPRIETARY INFORMATION The information contained in this document is GE proprietary information and is disclosed in confidence. It is the property of GE and shall not be used, disclosed to others or reproduced without the express written consent of GE, including, but without limitation, it is not to be used in the creation, manufacture, development , or derivation of any repairs, modifications, spare parts, designs, or configuration changes or to obtain FAA or any other government or regulatory approval to do so. If consent is given for reproduction in whole or in part , this notice and the notice set forth on each page of this document shall appear in any such reproduction in whole or in part . This information may contain technical data subject to US export control under the Export Administration Regulations (EAR) with ECCN 9E991 - NLR. Export to countries subject to a US comprehensive embargo, or foreign nationals thereto, will require an export license from the US Department of Commerce.
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sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Table of Contents Title Page Number
Introduction 4
References 5
Recommended Tools 6
Cleaning Best Practices 7
Fan Blade before Top-Coat Lubricant 8
Fan Blade after Top-Coat Lubricant 10
Fan Blade Shim before Top-Coat Lubricant 12
Fan Blade Shim after Top-Coat Lubricant 14
Fan Blade with Shim after Top-Coat Lubricant 16
Fan Blade Spacer before Top-Coat Lubricant 18
Fan Blade Spacer after Top-Coat Lubricant 20
Fan Blade Retainer after Top-Coat Lubricant 22
Fan Disk & Booster after Top-Coat Lubricant 24
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GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Introduction
This guide is intended exclusively for the owners and operators of GE commercial aero turbo machinery. It has been prepared as a guide for use during lubrication of the CF34-10 fan blades and associated hardware. The purpose of this guide is to provide a quick and accurate way to visually identify the condition of the hardware and coatings, and the intended lubrication procedure for the CF34-10 fan blade, shim, spacer, retainer, disk, and booster.
The data/images presented here do not supersede or replace any FAA approved documents (Engine Service Manual, Service Bulletins, Aircraft Maintenance Manual, etc). This document and the material within it are subordinate to Aircraft and Engine Maintenance Manuals.
Additional copies of this photo standards booklet can be ordered through the GE Customer Web Center (https://cwcportal.geae.com Training CTEC University Catalog).
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GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
EMM 72-00-00 Removal 017:
Fan Blade Top Coat Lubricant Re-Application
Training Video (CTEC DTA ID 497474)
https://cwcportal.geae.com
Training CTEC University Catalog
CF34-10E DTA Top Coat Lubrication Procedure
E190/195 Service Newsletter 190-72-0002
http://flyembraer.com
Maintenance Technical Publications Embraer 190/195
SNL 190-72-0002 – Embraer 190/195 Engine Fan (N1) Vibration – General Information
References
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GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Cleaning Best Practices
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Examples of good Examples of bad
The intent of the cleaning procedure is to remove the top-coat lube ONLY. The base-coat lube should remain intact after proper cleaning. Recommended tools include: • Solvent pump sinks • Nylon brushes • Non-abrasive Scotch Brite Pads • Other non-abrasive cleaning tools
Tools to avoid include: • Abrasive Scotch Brite Pads • Wire brushes • Other abrasive cleaning tools
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Recommended Tools for Top-Coat Lubricant
Application
• Gloved Finger
• Artists Brush less than 0.5” width
• Narrow sponge
Approved Top-Coat Lubricants:
• Molykote G-n Paste (grease paste)
• Molykote G Rapid Plus Paste (grease paste)
NOTE: Spray-form (aerosol) top-coat lubricants are NOT currently approved for use on CF34-10.
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GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Fan Blade: Before Top-Coat Lubricant ATA Code: 72-21-04 (IPC 01-080, 72-00-01)
New fan blade:
• Dark grey baked-on base-coat evident along entire pressure face surface
Fielded fan blade with good base-coat:
• Dark grey to black base-coat still evident along pressure face
• Aft end of pressure face may be slightly darker where shim does not contact blade dovetail
Examples of good
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GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Fan Blade: Before Top-Coat Lubricant ATA Code: 72-21-04 (IPC 01-080, 72-00-01)
Examples of bad
Fielded fan blade with bad base-coat:
• Base-coat missing in local areas - wear coating is light silver and more porous than the dark gray base-coat lube
• Base-coat completely missing down to wear coating (light silver color)
• Note small area of remaining base-coat at aft end of pressure face where there is was no contact with shim
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GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Fan Blade: After Top-Coat Lubricant ATA Code: 72-21-04 (IPC 01-080, 72-00-01)
Examples of good
Good top-coat:
• Light even coating of entire fan blade root
• Important to apply lube to all areas that will contact the shim
• Only enough lube to cover the surface without being able to see the metal or base-coat thru the lube
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GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Fan Blade: After Top-Coat Lubricant ATA Code: 72-21-04 (IPC 01-080, 72-00-01)
Examples of bad
Bad top-coat:
• Lube that is too heavy will have ridges and lumps evident
• It will be obvious that the mating part will squeeze out excess top-coat lube when assembled
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GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Fan Blade Shim: Before Top-Coat Lubricant ATA Code: 72-21-10 (IPC 05-470, 72-00-01)
Examples of good
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New shim:
• Dark grey baked-on base-coat evident along entire pressure face surface
Fielded shim with good base-coat:
• Dark grey to black base-coat still evident along pressure face
• Copper color of wear coat should not be evident (covered by base-coat)
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of bad
Fan Blade Shim: Before Top-Coat Lubricant ATA Code: 72-21-10 (IPC 05-470, 72-00-01)
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Fielded shim with bad base-coat:
• If copper color of wear coating is visible the base-coat is gone
• Watch for chipping of the copper-color wear coating
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of good
Fan Blade Shim: After Top-Coat Lubricant ATA Code: 72-21-10 (IPC 05-470, 72-00-01)
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Good top-coat:
• A thin even coat of lube should be applied to all internal surfaces of the shim – just thick enough to coat the metal surfaces
• External surfaces of the shim will be coated later, after the shim is installed
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of bad
Fan Blade Shim: After Top-Coat Lubricant ATA Code: 72-21-10 (IPC 05-470, 72-00-01)
15
Bad top-coat:
• Lube that is too heavy will have ridges and lumps evident
• It will be obvious that the mating part will squeeze out excess top-coat lube when assembled
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Fan Blade with Shim After Top-Coat Lubricant ATA Code: 72-00-21 (IPC 01-080 & 05-470, 72-00-01)
Examples of good
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Good top-coat:
• Thin uniform layer of top-coat lube applied to entire exterior surface of the shim including the bottom surfaces
• Apply only enough top-coat lube to cover the surface and be visually seen (complete coverage of the shim surface)
• Slightly heavier coating on dovetail pressure faces to assure complete lube coverage in the interface with the fan disk dovetail pressure faces
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of bad
Fan Blade with Shim After Top-Coat Lubricant ATA Code: 72-00-21 (IPC 01-080 & 05-470, 72-00-01)
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Bad top-coat:
• Lube that is too heavy will have ridges and lumps evident
• It will be obvious that the mating part will squeeze out excess top-coat lube when assembled
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of good
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Fan Blade Spacer: Before Top-Coat Lubricant ATA Code: 72-21-03 (IPC 05-480, 72-00-01)
New spacer:
• Base-coat lube evident at the center of the spacer & at the bolt tab on the bottom and on the end of the shim on the top where it contacts the shim
Fielded spacer with good base-coat:
• Some of the base-coat showing slight wear
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of bad
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Fan Blade Spacer: Before Top-Coat Lubricant ATA Code: 72-21-03 (IPC 05-480, 72-00-01)
Fielded spacer with bad base-coat:
• Base coat missing
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of good
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Fan Blade Spacer: After Top-Coat Lubricant ATA Code: 72-21-03 (IPC 05-480, 72-00-01)
Good top-coat:
• A thin uniform layer of top-coat lube should be applied to all 4 contact surfaces of the spacer.
• Note that only 3 of the 4 top-coated contact surfaces also have underlying base-coat
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of bad
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Fan Blade Spacer: After Top-Coat Lubricant ATA Code: 72-21-03 (IPC 05-480, 72-00-01)
Bad top-coat:
• Lube that is too heavy will have ridges and lumps evident
• It will be obvious that the mating part will squeeze out lube when assembled
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of good
Fan Blade Retainer: After Top-Coat Lubricant ATA Code: 72-21-01 (IPC 05-500, 72-00-01)
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Good top-coat:
• A thin uniform layer of top-coat lube should be applied to retainer aft face and both sides (areas shown)
• Lube should wrap around to the forward face where retainer contacts the fan disk retainer slots
• Lube should not be applied to the bottom of the retainer
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of bad
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Bad top-coat:
• Lube that is too heavy will have ridges and lumps evident
• It will be obvious that the mating part will squeeze out lube when assembled
• Lube should not be applied to bolt-flange tab
Fan Blade Retainer: After Top-Coat Lubricant ATA Code: 72-21-01 (IPC 05-500, 72-00-01)
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of good
Fan Disk & Booster: After Top-Coat Lubricant ATA Code: 72-00-21 (IPC 01-015 & 01-030, 72-21-00)
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Good top-coat:
Thin uniform layer of top-coat lube should be applied to disk slot, booster spool FWD flange face, and booster spool seal face
Cleaned Disk/Booster Hardware:
All existing top coat lube should be cleaned from disk slots, booster spool FWD flange, and booster spool seal face
Top-coat lube applied to entire disk slot area
GE PROPRIETARY INFORMATION Use of disclosure of data contained on this
sheet is subject to the restrictions on Page 2.
GEK 119187 Rev. 00
August 2012
Examples of bad
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Bad top-coat:
• Lube that is too heavy will have ridges and lumps evident
• Heavy lube of this magnitude will eventually work its way to accumulating under the blade platform creating balance issue
Fan Disk & Booster: After Top-Coat Lubricant ATA Code: 72-00-21 (IPC 01-015 & 01-030, 72-21-00)