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TASK 72-58-00-550-801
1 . General.
A.This procedure gives instructions to preserve and store the mid fan shaft when it is removed from the mid fan shaft assembly. Refer to Figure 1201. Make sure to obey the instructions that are listed below:
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Mid fan shaft (01-010) (SIN 810A0)
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Mid fan shaft (01-010A) (SIN 810A0) (SB 72-0114)
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Mid fan shaft (01-011) (SIN 810A0) (SB 72-0040)
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Mid fan shaft (01-011A) (SIN 810A0) (SB 72-0114)
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Mid fan shaft (01-012) (SIN 810A0) (SB 72-0160)
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Mid fan shaft (01-012) (SIN 810A0) (SB 72-0230)
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Mid fan shaft (01-012A) (SIN 810A0) (SB 72-0300)
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Mid fan shaft (01-013) (SIN 810A0) (SB 72-0319)
•
Mid fan shaft (01-014) (SIN 810A0) (SB 72-0319)
•
Mid fan shaft (01-014A) (SIN 810A0) (SB 72-0319)
•
Mid fan shaft assembly (45-010 , 72-00-02) (SIN 81000)
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Mid fan shaft assembly (45-010A , 72-00-02) (SIN 81000) (SB 72-0114)
•
Mid fan shaft assembly (45-011 , 72-00-02) (SIN 81000) (SB 72-0040)
•
Mid fan shaft assembly (45-011A , 72-00-02) (SIN 81000) (SB 72-0114).
(1)Always obey all safety and local environmental procedures.
(2)Always use a hoist and the approved tools and procedures to lift the engine, heavy parts, or assemblies.
B.This procedure begins with the mid fan shaft installed in the 11C3605   mid fan shaft truck at the equivalent disassembly status of TASK 72-00-04-030-801 (72-00-04, Disassembly). Refer to Figure 1202.
C.Before you begin these procedures, read the Preservation of Engine Parts section. Refer to TASK 70-60-00-620-001 (PRESERVATION OF ENGINE PARTS).
2 . Tools, Equipment, and Materials.
NOTE:
You can use equivalent alternatives for Tools, Equipment, and Consumable Materials.
A.Tools and Equipment.
(1)Special Tools.
 
Tool No.
Description
 
11C3296P01
Protector, Thread/Spline - LPT Shaft, Forward (thread/spline protector)
 
11C3600G01
Fixture, Lift - Shaft Module Assembly, Mid (mid fan shaft lift fixture)
 
11C3605G01
Truck, Shaft - Mid Fan (mid fan shaft truck)
(2)Standard Tools and Equipment. None.
(3)Locally Manufactured Tools. None.
B.Consumable Materials.
 
Code No.
Description
 
C02-019
Oil, Engine Lubricating (GE Spec. D50TF1) (engine oil)
 
C02-023
Oil, Engine Lubricating (MIL-L-23699) (engine oil)
 
C02-025
Oil, Preservation (MIL-C-6529C Type III) (oil, preservation)
 
C10-009
Paper, Greaseproof (MIL-B-121 Type II, Grade A, Class 2 (Kraft)) (paper, greaseproof)
 
C10-128
Plastic Sheet, Polyethylene (plastic sheet, polyethylene)
C.Referenced Procedures.
 
ATA No.
Description
 
70-60-00
Preservation of Engine Parts
 
72-00-04
Low Pressure Turbine Module Assembly - Disassembly
 
72-58-00
Mid Fan Shaft Assembly - Disassembly
D.Expendable Parts. None.
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Figure 1201   Mid Fan Shaft Assembly
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Figure 1202   Mid Fan Shaft Installed in the Mid Fan Shaft Truck, 11C3605
3 . Procedure
Subtask 72-58-00-550-001
A.This procedure gives instructions to preserve the mid fan shaft when removed from the mid fan shaft assembly and put it in storage for up to one month.
(1)Remove the mid fan shaft from the mid fan shaft assembly. Refer to TASK 72-58-00-030-801 (72-58-00, Disassembly 001).
WARNING:
ALWAYS USE APPROVED EQUIPMENT AND PROCEDURES TO LIFT PARTS. STAY OUT FROM BELOW LOADS. IF THE PARTS ACCIDENTALLY MOVE OR FALL, THEY CAN CAUSE AN INJURY OR KILL YOU.
(2)If necessary, use the 11C3600   mid fan shaft lift fixture to lift the mid fan shaft. Refer to Figure 1203.
Subtask 72-58-00-620-001
WARNING:
LUBRICATING OILS MAY CAUSE SKIN, EYE AND RESPIRATORY IRRITATION WITH PROLONGED OR REPEATED CONTACT. USE PROPER PERSONAL PROTECTIVE EQUIPMENT TO PREVENT SKIN AND EYE CONTACT. IF EYE OR SKIN CONTACT OCCURS FLUSH EYES WITH WATER AND/OR WASH SKIN THOROUGHLY WITH SOAP AND WATER.
(3)Apply a large quantity of C02-019  engine oil or C02-023  engine oil to all the uncoated surfaces of the mid fan shaft. Refer to Figure 1204.
Subtask 72-58-00-530-003
(4)Put C10-128  plastic sheet, polyethylene around the uncoated surfaces of the mid fan shaft.
Subtask 72-58-00-550-005
(5)Install the mid fan shaft on the 11C3605   mid fan shaft truck. Refer to TASK 72-58-00-030-801 (72-58-00, Disassembly 001).
WARNING:
ALWAYS USE APPROVED EQUIPMENT AND PROCEDURES TO LIFT PARTS. STAY OUT FROM BELOW LOADS. IF THE PARTS ACCIDENTALLY MOVE OR FALL, THEY CAN CAUSE AN INJURY OR KILL YOU.
(a)If necessary, use the 11C3600   mid fan shaft lift fixture to lift the mid fan shaft. Refer to Figure 1203.
(b)Make sure you install the 11C3296   thread/spline protector on the forward end of the mid fan shaft.
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Figure 1203   Installation of the Mid Fan Shaft Lift Fixture, 11C3600, to the Mid Fan Shaft
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Figure 1204   Mid Fan Shaft Uncoated Surfaces
Subtask 72-58-00-550-003
B.This procedure gives instructions to preserve the mid fan shaft and put it in storage for more than one month.
Subtask 72-58-00-620-002
WARNING:
PRESERVATIVE OIL IS TOXIC. USE PERSONAL PROTECTION EQUIPMENT. USE IN A WELL-VENTILATED AREA.
(1)Apply C02-025  oil, preservation to all the uncoated surfaces of the mid fan shaft.
Subtask 72-58-00-530-002
(2)Put C10-009  paper, greaseproof around the uncoated surfaces of the mid fan shaft.
Subtask 72-58-00-550-004
(3)Put the mid fan shaft in the 11C3605   mid fan shaft truck. Refer to TASK 72-58-00-030-801 (72-58-00, Disassembly 001).
(a)Make sure that you install the 11C3296   thread/spline protector on the forward end of the mid fan shaft.