TASK 72-00-31-300-008 LPC Fan Disk - Repair The Dry Film Lubricant, Repair-008 (VRS1134)

DMC:V2500-A0-72-00-3105-00A-240A-C|Issue No:002.00|Issue Date:2015-08-01

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 72-00-31-300-008 LPC Fan Disk - Repair The Dry Film Lubricant, Repair-008 (VRS1134)

Effectivity

General

This TASK gives the procedure to repair the dry film lubricant on the dovetail of the low pressure (LP) compressor fan disc.

There are two methods for repair of the dry film lubricant in this task.

The steps 4 and 7 are a procedure for method 1.

The steps 5 and step 8 are a procedure for method 2.

For consumable materials for each method, refer to 2.B Consumable materials.

This repair must only be done when instructed to do so given in 72-00-31-200-004 inspection.

Material of component

PART IDENT

SYMBOL

MATERIAL

Fan disc

-

Titanium alloy

Price and availability - none

The practices and processes referred to in the procedure by the TASK number are in the SPM.

NOTE

  1. To identify the consumable materials, refer to the PCI.

  2. The rapid re-lube system is the revised method of applying the dry film lubricant. A purpose-designed rapid re-lube kit contains the cleaning and applicator tools for the re-lubrication of one fan blade set and fan disc. The rapid re-lube kit is a disposable kit and must be discarded accordingly after the fan disc has been lubricated again.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Dental MirrorLOCALDental Mirror
TorchLOCALTorch
Vibrating Marking PencilLOCALVibrating Marking Pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-031 ACETONE (CH3)2COLOCALCoMat 01-031
CoMat 01-124 ISOPROPYL ALCOHOLLOCALCoMat 01-124
CoMat 01-338 CLEANING SOLVENTLOCALCoMat 01-338
CoMat 02-018 BRUSH, PAINTLOCALCoMat 02-018
CoMat 02-099 LINT-FREE CLOTHLOCALCoMat 02-099
CoMat 04-016 DRY FILM LUBRICANT PAINT, RAPID RELUBRICATION SYSTEMLOCALCoMat 04-016
CoMat 04-017 KIT, RAPID RELUBRICATION SYSTEMk3504CoMat 04-017
CoMat 10-005 COLLOIDAL MOLYBDENUM DISULFIDE IN TOLUENELOCALCoMat 10-005
CoMat 10-106 BONDED LUBRICANTLOCALCoMat 10-106

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-31-110-060-A01 Clean the Missing Layer Areas on the Dovetail Slot - Method 1

    1. Refer to Figure.

      2. WARNING

        DO NOT GET CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GOGGLES AND A FACE MASK. USE THE FLUID IN A WELL VENTILATED AREA. DO NOT BREATHE THE VAPOR. IF YOU GET THE CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

        Clean the missing layer areas.

    2. SUBTASK 72-00-31-110-060-A02 Clean the Dovetail Slot - Method 2

    1. Refer to Figure.

      2. WARNING

        DO NOT GET CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GOGGLES AND A FACE MASK. USE THE FLUID IN A WELL VENTILATED AREA. DO NOT BREATHE THE VAPOR. IF YOU GET THE CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

        Clean the dovetail slot of the fan disc.

        1. Assemble the fan disc cleaning tool.

        1. Use CoMat 04-017 KIT, RAPID RELUBRICATION SYSTEM, fan disc cleaning handle and roller.

        2. Remove the loose dry film lubricant.

        1. Use all five cleaning rollers to clean the fan disc slots. Discard the rollers once they have become dirty. It is permitted to use the fan disc cleaning tool with CoMat 01-031 ACETONE (CH3)2CO or CoMat 01-124 ISOPROPYL ALCOHOL or CoMat 01-338 CLEANING SOLVENT.

          Put the roller fully into the above solvent and brush along the slot to remove the loose dry film lubricant and the unwanted material.

      3. Discard the cleaning handle and rollers.

    3. SUBTASK 72-00-31-220-140 Examine the Fan Disk

      1. Do a visual inspection of the part.

    4. SUBTASK 72-00-31-350-063-A01 Apply the Dry Film Lubricant on the Dovetail Slot - Method 1

    1. Refer to Figure.

      2. Touch up the dry film lubricant to the missing layer areas.

    3. Apply three layers of the dry lubricant to a total thickness of between 0.001 and 0.002 in. (0.03 and 0.05 mm) to the surface BJ.

      4. Air dry.

      1. If CoMat 10-005 COLLOIDAL MOLYBDENUM DISULFIDE IN TOLUENE was used, dry for minimum eight hours.

      2. If CoMat 10-106 BONDED LUBRICANT was used, dry for 30 minutes.

    5. SUBTASK 72-00-31-350-063-A02 Apply the Dry Film Lubricant - Method 2

    1. Refer to Figure.

      2. Assemble the fan disc applicator.

        1. Assemble the fan disc applicator.

        1. Use CoMat 04-017 KIT, RAPID RELUBRICATION SYSTEM, fan disc applicator handle and paint pads. Remove too much fibers from the pads. Assemble the fan disc applicator handle and pad.

      2. Loose fibers must be removed from the paint pads as the fibers may be applied to the fan disc slot within the dry film lubricant layer. Fibers in the layer are to be prevented where possible.

      3. Prepare the dry film lubricant.

      2. Remove any congealed dry film lubricant from the container.

      3. Put a small amount of dry film lubricant into the paint tray, approximate diameter 1.5 in. (40 mm).

      4. NOTE

        1. A small amount of the dry film lubricant must be put into a paint try in order to prevent the dry film lubricant drying quickly.

        2. Before filling the paint try with the dry film lubricant, any dried lubricant must be removed from the paint tray. If the dried dry film lubricant remains on the tray, the dried dry film lubricant can cause contamination of the dry film lubricant and inconsistencies in both layer quality and thickness.

      4. Put the load on the pad with dry film lubricant for applying of each dovetail slot.

      1. Make sure that all the paint pad fibers are applied with dry film lubricant. Remove too much dry film lubricant with the edge of the paint tray until the paint pad is a same dark grey color. Do not put too much load on the paint pad as this will cause drips when the dry film lubrication is applied to the dovetail slot.

      5. CAUTION

        THE APPLICATOR PAINT PAD MUST BE REPLACED AFTER EVERY SIX DOVETAIL SLOTS RE-LUBRICATIONS, AS THE PAINT PAD FIBERS BECOME STICKY AND THE PAD DETERIORATED.

        Apply the dry film lubricant to each dovetail slot.

      1. Make sure it is applied at the top-dead-center position of the fan disc. Turn the disc to put the dovetail slot at this position before you start to apply.

      2. Put the applicator paint pad in the dovetail slot at the top-dead-center position of the disc. Put the paint pad on the left-hand-side surface of the dovetail slot, lightly pushing left and up. Apply a layer of dry film lubricant to the left-hand-side surface with a smooth stroke along the full length of the dovetail slot and back.

        For example, from the front to the rear of the disc, and then from the rear to the front of the disc, while put on the left-hand-side surface.

      3. Put the paint pad on the right-hand-side surface of the dovetail slot, lightly pushing right and up. Apply a layer of dry film lubricant to the right-hand-side surface with a smooth stroke along the full length of the dovetail slot and back.

        For example, from the front to the rear of the disc, and then from the rear to the front of the disc, while put on the right-hand-side surface.

      4. Do steps (1) thru (3) again to apply the dry film lubricant to each remaining dovetail slot.

      6. Visually examine the dry film lubricant layer.

        1. Make sure the surface is equally applied.

        1. Use a dental mirror and torch.

      2. If an area of BJ is not applied and the dry film lubricant is not dry, then apply the dry film lubricant to the fan disc dovetail slot. Go to Step E.

        3. If an area of BJ is not applied and the dry film lubricant is dry, then the dry film lubricant must be removed. Go to Step B.

        4. Do a check of the dry film lubricant layer, after each applying, for fibers.

          1. If the layer contains more than five fibers per 0.155 sq.in (1.00 sq cm), then remove the dry film lubricant layer. Go to Step B.

        5. Do a check of the dovetail slot and disc front face for drips. Remove all drips.

    7. Cure the dry film lubricant for a minimum of 30 minutes at room temperature.

    8. Discard the applicator tool.

    6. SUBTASK 72-00-31-220-141 Visually Examine the Dry Film Lubricant on the Dovetail Slot

      1. The layer must be smooth and bonded correctly to the surface of the part.

      1. Use a dental mirror.

      2. The layer must not have any cracks or flakes.

      1. Use a dental mirror.

    7. SUBTASK 72-00-31-350-064 Identify the Repair

      1. Put a mark VRS1134 adjacent to the part number.

      1. Refer to the SPM TASK 70-09-00-400-501. Use vibro engraving equipment.

    8. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new part number. (09VJ820A)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 01-031
Type:sp01
Supply Short Name:CoMat 01-031 ACETONE (CH3)2CO
Supply Name:CoMat 01-031 ACETONE (CH3)2CO
Specification Groups:
Doc NumberType
OMAT: 150 (RR REF)COMMERCIAL GRADE O-A-51
PMC 9008 (PW REF)COMMERCIAL GRADE O-A-51
JCR-041 (JAEC REF)COMMERCIAL GRADE O-A-51
MTH 169 (98%) (MTU REF)COMMERCIAL GRADE O-A-51
Suppliers:
ManufacturerRemarks
LOCAL
K6835
81348
K3504
U1185
24853
70657
Manufacturer Code:LOCAL
Supply Number:CoMat 01-124
Type:sp01
Supply Short Name:CoMat 01-124 ISOPROPYL ALCOHOL
Supply Name:CoMat 01-124 ISOPROPYL ALCOHOL
Specification Groups:
Doc NumberType
OMAT:1/40GPR TECHNICAL GRADE
PMC 9094GPR TECHNICAL GRADE
JCR-011GPR TECHNICAL GRADE
Suppliers:
ManufacturerRemarks
LOCAL
U1185
24853
K6835
Manufacturer Code:K6835
Supply Number:CoMat 01-338
Type:sp01
Supply Short Name:CoMat 01-338 CLEANING SOLVENT
Supply Name:CoMat 01-338 CLEANING SOLVENT
Specification Groups:
Doc NumberType
DESOCLEAN 45SOLVENT CLEANER
Suppliers:
ManufacturerRemarks
K6835
5HCF1
K5635
Manufacturer Code:LOCAL
Supply Number:CoMat 02-018
Type:sp01
Supply Short Name:CoMat 02-018 BRUSH, PAINT
Supply Name:CoMat 02-018 BRUSH, PAINT
Specification Groups:
Doc NumberType
PENCIL SIZE NO.6 ARTIST PAINT BRUSH (CAMEL HAIR OR SQUIRREL HAIR)
Suppliers:
ManufacturerRemarks
LOCAL
K6835
76071
Manufacturer Code:X222X
Supply Number:CoMat 02-099
Type:sp01
Supply Short Name:CoMat 02-099 LINT-FREE CLOTH
Supply Name:CoMat 02-099 LINT-FREE CLOTH
Specification Groups:
Doc NumberType
WHERE COMAT 02-099 IS SPECIFIED WITH NO SUFFIX, USE COMAT 02-099A OR COMAT 02-099B.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:00BB6
Supply Number:CoMat 04-016
Type:sp01
Supply Short Name:CoMat 04-016 DRY FILMLUBRICANT PAINT, RAPID RELUBRICATION SYSTEM
Supply Name:CoMat 04-016 DRY FILM LUBRICANT PAINT, RAPID RELUBRICATION SYSTEM
Specification Groups:
Doc NumberType
PL470 DRY FILM LUBRICANT
Suppliers:
ManufacturerRemarks
00BB6
K3504
Manufacturer Code:K3504
Supply Number:CoMat 04-017
Type:sp01
Supply Short Name:CoMat 04-017 KIT, RAPID RELUBRICATION SYSTEM
Supply Name:CoMat 04-017 KIT, RAPID RELUBRICATION SYSTEM
Specification Groups:
Doc NumberType
OMAT4-78-KIT RAPID RELUBRICATION SYSTEM FOR BR 715 & V2500
Suppliers:
ManufacturerRemarks
K3504
00BB6
Manufacturer Code:U5F65
Supply Number:CoMat 10-005
Type:sp01
Supply Short Name:CoMat 10-005 COLLOIDAL MOLYBDENUM DISULFIDE IN TOLUENE
Supply Name:CoMat 10-005 COLLOIDAL MOLYBDENUM DISULFIDE IN TOLUENE
Specification Groups:
Doc NumberType
BONDERITE L-GP M 709 ACHESON
Suppliers:
ManufacturerRemarks
U5F65
K6835
D8908
Manufacturer Code:X222X
Supply Number:CoMat 10-106
Type:sp01
Supply Short Name:CoMat 10-106 BONDED LUBRICANT
Supply Name:CoMat 10-106 BONDED LUBRICANT
Specification Groups:
Doc NumberType
DELETED. IF COMAT 10-106 IS SPECIFIED WITH NO ASTERISK, USE COMAT 10-106A.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Dental Mirror
Tool Name:Dental Mirror
Manufacturer Code:LOCAL
Tool Number:Torch
Tool Name:Torch
Manufacturer Code:LOCAL
Tool Number:Vibrating Marking Pencil
Tool Name:Vibrating Marking Pencil