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 72-00-32-450-021 LPC/Intermediate Case Module Components - Install The Fuel Filter Differential Pressure Switch, Installation-028
General
Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.
For all parts identified in a different Chapter/Section/Subject, the applicable Chapter/Section/Subject comes before the Fig/item number.
Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-039 ENGINE OIL unless other lubricants are referred to in the procedure.
Do not remove the special plastic caps from the electrical connectors and receptacles until immediately before they are connected. This will give protection from unwanted fluids or materials.
During the installation procedure make sure that the harnesses are held temporarily along their different lengths. This is to prevent too much strain on the harnesses, cables and electrical connectors.
For the data on the electrical connectors refer to the SPM TASK 70-43-00-400-501 and TASK 70-43-01-400-501.
For lockwire data and procedures refer to the SPM TASK 70-42-05-400-501.
For the torque tightening procedures, refer to the SPM TASK 70-41-00-400-501 and TASK 70-41-01-400-501.
Special torque data and assembly tolerances are included in this procedure.
Special torque data is identified with the symbol * after the torque value.
For lockwire data and procedures refer to SPM TASK 70-42-05-400-501.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 01-002 SOLVENT, DELETED. | 0AM53 | CoMat 01-002 | ||
| CoMat 02-126 LOCKWIRE | LOCAL | CoMat 02-126 | ||
| CoMat 10-038 PETROLEUM JELLY | LOCAL | CoMat 10-038 | ||
| CoMat 10-039 ENGINE OIL | LOCAL | CoMat 10-039 | ||
| CoMat 10-060 LIQUID PARAFFIN | LOCAL | CoMat 10-060 | ||
| CoMat 06-086 TIES | 18992 | CoMat 06-086 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
WARNING
WHEN YOU USE COMAT 01-002 INHIBITED AND STABILIZED TRICHLORETHANE YOU MUST USE THE NECESSARY PROTECTIVE CLOTHING. DO NOT GET THE SOLVENT ON YOUR SKIN OR IN YOUR EYES. YOU MUST NOT SMOKE WHEN YOU USE THE SOLVENT AS THE VAPOR CHANGES AND BECOMES TOXIC.Remove the grease, the fingerprints and the unwanted material from the mating surfaces of the FCOC and the pressure switch with CoMat 01-002 SOLVENT, DELETED.. Use a clean lint free cloth moistened with the solvent.
Lubricate the new FUEL FILTER DIFF PRESSURE SWITCH (73-34-15, 01-030) packing 2 off with CoMat 10-038 PETROLEUM JELLY or CoMat 10-060 LIQUID PARAFFIN.
Install the two packings in the FCOC. Refer to the view on B, Figure.
Install the pressure switch to the FCOC with the four bolts FUEL FILTER DIFF PRESSURE SWITCH (73-34-15, 01-020). Torque the four bolts to 85 to 105 lbf.in (10 to 12 Nm).
Remove the CoMat 06-086 TIES which attach the electrical harness/connector 4000EL-A to the primary harness. Connect the electrical connector to the pressure switch receptacle, torque the connector to 14* lbf.in (1.6 Nm).
SUBTASK 72-00-32-450-059 Install the Fuel Filter Differential Pressure Switch (73-34-15,01-010)
Refer to Figure.
Make sure that all the applicable backshells and cable clamps are safetied with CoMat 02-126 LOCKWIRE. Refer to the SPM TASK 70-42-05-400-501.
SUBTASK 72-00-32-210-074 Visually Inspect the Electrical Backshells and Cable Clamps
Figure: Install the fuel filter differential pressure switch
Install the fuel filter differential pressure switch
Figure: Visually inspect the backshells and cable clamps
Visually inspect the backshells and cable clamps
