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TASK 72-30-00-000-801
1 . General.
A.This procedure gives instructions to disassemble the VSV torque shaft assembly (02-005) (SIN 07501), (02-010) (SIN 07501), (02-190) (SIN 07500), or (02-200) (SIN 07500) to piece part level and assemble after the inspection process.
B.The VSV torque shaft assembly disassembly/assembly process is performed during the HPC overhaul.
C.This procedure is applicable to torque shaft assemblies with part numbers that follows:
• 2474M01 (02-005A) (SIN 07501), (02-010) (SIN 07501), (02-190A) (SIN 07500) or (02-200) (SIN 07500) - separable clevis torque shaft assembly
• 2570M12 (02-005) (SIN 07501) or (02-190) (SIN 07500) - integral clevis torque shaft assembly.
For all the other torque shaft assembly part numbers, please write to GE fleet support.
2 . Tools, Equipment, and Materials.
NOTE:
Repair sources can use equivalent alternatives for tools, equipment, and consumable materials, however, the repair source must demonstrate and document equivalency.
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
 
C10-143
Safety Cable Assembly (Safety Cable)
C.Referenced Procedures. None
D.Expendable Parts. None.
3 . Procedure.
CAUTION:
VSV RIGGING MUST BE CARRIED OUT IF LINKAGE ASSEMBLY IS DISASSEMBLED. PLEASE REFER TO TASK 72-00-02-440-001 (72-00-02, ASSEMBLY 001, CONFIGURATION 02) AND TASK 72-30-00-440-804 (72-30-00, ASSEMBLY 002, CONFIGURATION 02) FOR RIGGING PROCEDURE.
CAUTION:
PLEASE REFER TO TASK 72-00-02-440-001 (72-00-02, ASSEMBLY 001, CONFIGURATION 02) AND TASK 72-30-00-440-804 (72-30-00, ASSEMBLY 002, CONFIGURATION 02) FOR INSTALLATION OF THE IGV AND STAGES 1-4 TURNBUCKLES TO THE TORQUE SHAFT CLEVISES.
Subtask 72-30-00-030-159
A.Disassemble the separable clevis torque shaft assembly configuration (02-005A) (SIN 07501), (02-0010) (SIN 07501), (02-190A) (SIN 07500), or (02-200) (SIN 07500), as follows:
NOTE:
For the separable clevis torque shaft assembly configuration. Refer to Figure 201, Figure 202, and Figure 203.
(1)Disconnect the IGV and stage 1-4 turnbuckles from the torque shaft clevis as follows:
(a)Remove the self-locking nuts (02-080) (SIN 07501-16) and bolts (02-085) (SIN 07501-17) that connect the turnbuckles to the shaft.
(b)Disassemble the torque shaft from the turnbuckles.
(2)Remove the safety cable/wire on torque shaft nut and then remove the torque shaft nut (02-035) (SIN 07501-5).
(3)Remove the VSV aft support assembly as follows:
(a)Disassemble the VSV aft support assembly.
1Remove two self-locking nuts (02-160) (SIN 07501-32) and bolts (02-155) (SIN 07501-31) to disassemble the assembly into aft support (02-030) (SIN 07501-4), thrust link (02-040) (SIN 07501-6), and thrust link pad (02-045) (SIN 07501-7).
(4)Remove the VSV forward support (02-025) (SIN 07501-3).
CAUTION:
REGARDLESS OF THE SHIM COUNT IDENTIFIED DURING THE DISASSEMBLY, IT IS NECESSARY TO HAVE SHIMS PER CONFIGURATION TABLE FOR ASSEMBLY PROCESS. REFER FIGURE 205.
(5)Remove the IGV and stage 1-4 clevises as follows:
(a)Remove the self-locking nuts (02-070) (SIN 07501-14) or (02-075) (SIN 07501-15) that attaches the shaft clevis to the torque shaft.
(b)Remove clevises (02-050) (SIN 07501-8), (02-055) (SIN 07501-9), (02-060) (SIN 07501-10), or (02-065) (SIN 07501-11) from shaft (02-020) (SIN 07501-2) or (02-210) (SIN 07500-2).
(c)Remove clevis shims (02-500) (SIN 7570) or (02-510) (SIN 7570).
Subtask 72-30-00-020-004
B.Disassemble the integral clevis torque shaft assembly configuration (02-190) (SIN 07500) or (02-005) (SIN 07501), as follows:
NOTE:
For the integral clevis torque shaft assembly configuration. Refer to Figure 201 and Figure 204.
(1)Disconnect the IGV and stages 1 through 4 turnbuckles from the torque shaft clevis as follows:
(a)Remove the self-locking nuts (02-081) (SIN 07501-18) and bolts (02-086) (SIN 07501-9) that connect turnbuckles to the shaft.
(b)Disassemble the torque shaft (02-020A) (SIN 07501-2) or (02-210A) (SIN 07500-2) from the turnbuckles.
(2)Remove the safety cable/wire on torque shaft nut (02-035) (SIN 07501-5) and then remove the torque shaft nut (02-035) (SIN 07501-5).
(3)Remove the VSV aft support assembly.
(4)Disassemble the VSV aft support assembly as follows:
(a)Remove two self-locking nuts (02-161) (SIN 07501-24) and bolts (02-156) (SIN 07501-23) to disassemble the assembly into aft support, thrust link, and thrust link pad.
(5)Remove the VSV forward support (02-025) (SIN 07501-3).
Subtask 72-30-00-430-036
C.Assemble the separable clevis torque shaft assembly configuration (02-005A) (SIN 07501), (02-0010) (SIN 07501), (02-190A) (SIN 07500), or (02-200) (SIN 07500), as follows:
NOTE:
For separable clevis torque shaft assembly configuration. Refer to Figure 201, Figure 202, and Figure 203.
(1)Assemble the VSV aft support assembly as follows:
(a)Attach the thrust link (02-040) (SIN 07501-6) to VSV aft support (02-030) (SIN 07501-4) and thrust link pad (02-045) (SIN 07501-7) with two self-locking nuts (02-160) (SIN 07501-32) and bolts (02-155) (SIN 07501-31).
(b)Torque the self-locking nuts to 331.5 to 388.5 lb in. (37.5 to 43.8 Nm), no assembly lubricant must be used.
(2)Install the VSV aft support assembly to the shaft (02-020) (SIN 07501-2) or (02-210) (SIN 07500-2).
(3)Install the torque shaft nut (02-035) (SIN 07501-5). Torque the nut to 663 to 777 lb in. (75.0 to 87.7 Nm), no assembly lubricant must be used.
(4)Install the safety cable/wire on torque shaft nut per AS567.
(5)Install the forward support (02-025) (SIN 07501) to the shaft (02-020) (SIN 07501-2) or (02-210) (SIN 07500-2).
(6)Install the IGV and stages 1-4 shaft clevis (02-050) (SIN 07501-8) or (02-055) (SIN 07501-9) or (02-060) (SIN 07501-10) or (02-065) (SIN 07501-11) to the torque shaft as follows:
CAUTION:
REGARDLESS OF THE SHIM COUNT IDENTIFIED DURING THE DISASSEMBLY, IT IS NECESSARY TO HAVE SHIMS PER CONFIGURATION TABLE FOR ASSEMBLY PROCESS. REFER TO FIGURE 205.
(a)Install shims (02-500) (SIN 07570) or (02-510) (SIN 07570) on IGV, stage 1 to 4 as for the configuration table. Refer to Figure 205.
(b)Install the IGV and stages 1-4 shaft clevis (02-050) (SIN 07501-8) or (02-055) (SIN 07501-9) or (02-060) (SIN 07501-10) or (02-065) (SIN 07501-11) in the VSV torque shaft (02-020) (SIN 07501-2), or (02-210) (SIN 07500-2) and attach it with a self-locking nut and do as follows:
1IGV, stage 1, 3 and 4 nuts - Torque the self-locking nut (02-070) (SIN 07501-14) or (02-075) (SIN 07501-15) to 515.5 to 604.5 lb in. (58.3 to 68.2 Nm), no assembly lubricant must be used.
2Re-apply torque 515.5 to 604.5 lb in. (58.3 to 68.2 Nm).
3Stage 2 nuts - Torque the self-locking nut (02-075) (SIN 07501-15 )to 708.5 to 831.5 lb in. (80.1 to 93.9 Nm), no assembly lubricant must be used.
4Re-apply torque 708.5 to 831.5 lb in. (80.1 to 93.9 Nm).
Subtask 72-30-00-430-037
A.Assemble the integral clevis torque shaft assembly configuration (02-190) (SIN 07500) or (02-005) (SIN 07501), as follows:
NOTE:
For the integral clevis torque shaft assembly configuration. Refer to Figure 201 and Figure 204.
(1)Assemble the VSV aft support assembly as follows:
(a)Attach the thrust link (02-040) (SIN 07501-6) to VSV aft support (02-030) (SIN 07501-4) and thrust link pad (02-045) (SIN 07501-7) with two self locking nuts (02-161) (SIN 07501-24) and bolts (02-156) (SIN 07501-23).
(b)Torque the self-locking nuts (02-161) (SIN 07501-24) to 331.5 to 388.5 lb in. (37.5 to 43.8 Nm), no assembly lubricant must be used.
(2)Install the VSV aft support assembly to the shaft.
(3)Install the torque shaft nut. Torque the nut to 663 to 777 lb in. (75.0 to 87.7 Nm), no assembly lubricant must be used.
(4)Install the safety cable/wire on torque shaft nut, refer to AS567.
(5)Install the forward support to the shaft (02-025) (SIN 07501-3).
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Figure 201   VSV Aft support assembly
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Figure 202   Separable Clevis Torque Shaft Assembly
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Figure 203   Separable Clevis Torque Shaft Showing Shims
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Figure 204   Integral Clevis Torque Shaft Assembly
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Figure 205   Configuration Table for Shim Part Numbers and Number of Shims on Each Stage to be Used on Separable Clevis Torque Shaft Assembly