* * * FOR 1B/P/G03.1B/P/G04.1B/P1/G01
TASK 72-53-43-100-801
1 . General.
A.This procedure gives instructions to clean the interstage seal (01-170 , 72-53-00) (SIN 150B3) or (01-170A , 72-53-00) (SIN 150B3). Keep this part with the related parts by engine serial number for inspection and assembly. Refer to Figure 601 and Figure 601A.
2 . Tools, Equipment, and Materials.
NOTE:
You can use equivalent alternatives for tools, equipment, and consumable materials.
A.Tools and Equipment.
(1)Special Tools. None.
(2)Standard Tools and Equipment. None.
(3)Locally Manufactured Tools. None.
B.Consumable Materials.
 
Code No.
Description
 
C04-112
Abrasive, Grit, Aluminum Oxide, 500 Mesh (Abrasive Compound, 500 Mesh)
C.Referenced Procedures.
 
ATA No.
Description
 
70-00-99
Wet Abrasive Blasting - Aluminum Oxide 500 Grit
 
70-21-05
Wet Abrasive Blast Cleaning
 
70-21-06
Heavy-Duty Alkaline Cleaner (Without Inhibited Phosphoric Acid)
 
70-21-10
Four-Step Alkaline Cleaning And Acidic Descaling (Without Inhibited Phosphoric Acid)
 
70-21-20
Four-Step Alkaline Cleaning And Acidic Descaling (With Inhibited Phosphoric Acid)
D.Expendable Parts. None.
3 . General Cleaning.
Subtask 72-53-43-110-001
A.Clean the interstage seal as follows:
(1)Alternative Procedures Available. Heavy-duty alkaline clean the interstage seal. Refer to TASK 70-21-06-110-004 (CLEANING METHOD NO. 6 - HEAVY-DUTY ALKALINE CLEANER (WITHOUT INHIBITED PHOSPHORIC ACID)).
* * * FOR 1B/P/G03.1B/P/G04.1B/P1/G01
* * * PRE SB   72-0061( Interstage Seal without Outer Rim Corrosion Resistant Coating )
Figure 601   Interstage Seal
* * * FOR 1B/P/G03.1B/P/G04.1B/P1/G01
* * * SB   72-0061( Interstage Seal with Outer Rim Corrosion Resistant Coating )
Figure 601A   Interstage Seal
Subtask 72-53-43-110-002
(1).A.Alternative Procedure. Four-step alkaline clean and acidic descale the interstage seal. Refer to TASK 70-21-10-110-008 (CLEANING METHOD NO. 10 - FOUR-STEP ALKALINE CLEANING AND ACIDIC DESCALING (WITHOUT INHIBITED PHOSPHORIC ACID)).
Subtask 72-53-43-110-003
(1).B.Alternative Procedure. Four-step alkaline clean and acidic descale the interstage seal. Refer to TASK 70-21-20-110-038 (CLEANING METHOD NO. 20 - FOUR-STEP ALKALINE CLEANING AND ACIDIC DESCALING (WITH INHIBITED PHOSPHORIC ACID)).
Subtask 72-53-43-120-001
(2)Alternative Procedure Available. If the initial procedure does not remove all unwanted material, wet abrasive blast clean the interstage seal. Refer to TASK 70-21-05-120-B02 (WET ABRASIVE BLAST CLEANING METHOD NO. 5B). Use C04-112    Abrasive Compound, 500 Mesh.
Subtask 72-53-43-120-002
(2).A.Alternative Procedure. If the initial procedure does not remove all unwanted material, wet abrasive blast clean the interstage seal. Refer to TASK 70-21-05-120-B02 (WET ABRASIVE BLAST CLEANING METHOD NO. 5B) and TASK 70-00-99-801-054 (S1054 - WET ABRASIVE BLASTING - ALUMINUM OXIDE 500 GRIT).
Subtask 72-53-43-350-003
B.Remove the coatings from the interstage seal (01-170 , 72-53-00) (SIN 150B3) or (01-170A , 72-53-00) (SIN 150B3) before an inspection is done. Refer to TASK 72-53-43-300-801 (72-53-43, REPAIR 001) and TASK 72-53-43-300-802 (72-53-43, REPAIR 003).