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 73-13-41-100-205 Fuel Nozzle And Support Assembly - Clean The Fuel Nozzle Strainer Element And The Metering Plug By Ultrasonic Procedure, Cleaning-005
General
This TASK gives the procedure to clean the fuel nozzle and support assembly strainer element and the metering plug by ultrasonic procedure. Alternatives to this procedure are given in Cleaning-001 TASK 73-13-41-100-201 or Cleaning-002 TASK 73-13-41-100-401.
The practices and processes referred to in this procedure by the TASK numbers are in the SPM.
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.
To identify the consumable materials refer to the PCI.
References
Refer to SPM TASK 70-10-00-100-501, Cleaning - General Information.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-054 BRUSH, TAMPICO | 045J7 | CoMat 02-054 |
Spares
NONESafety Requirements
NONEProcedure
Use alkaline rust remover solution.
Clean the strainer element and the metering plug ultrasonically (Alkaline Rust Remover Method). Refer to SPM TASK 70-13-02-300-503.
Use solution code 058
Process assembly in alkaline cleaner at 140 - 170 deg F (60 - 70 deg C) for 15 - 30 minutes. Do not exceed 60 minutes, ultrasonic process time.
NOTE
Alkaline rust solutions change the color nickel-cadmium from the typical olive to various shades of gray. The removal of the chromate conversion coating of the nickel-cadmium causes this color change. This color change does not reduce corrosion protection by nickel-cadmium.The purpose of chromate conversion coating is to give a visual indicator that the nickel-cadmium deposit has been diffused.
Ultrasonic clean the strainer element and the metering plug ultrasonically (Heavy Duty Alkali Cleaner Method). Refer to Cleaning-001 TASK 73-13-41-100-201.
Clean the strainer element and the metering plug by one of the procedures that follow:
Use clean water.
Water must be at ambient temperature.
Rinse with water.
Remove any sign of carbon with a stiff bristle, non-metallic brush.
Keep air pressure at 30 psi (206.8 kPa) maximum discharge pressure.
Dry the strainer element and the metering plug with filtered clean, dry, compressed air until dry
Examine the strainer element and the metering plug.
SUBTASK 73-13-41-130-052 Clean the Strainer Element and the Metering Plug by Ultrasonic Procedure