Cleaning of the Oil Tank Sight Glass [IAE]

TASK 79-11-41-100-010-B
Cleaning of the Oil Tank Sight Glass

WARNING: DO NOT LET ENGINE OIL STAY ON YOUR SKIN FOR A LONG TIME. FLUSH THE OIL FROM YOUR SKIN WITH WATER. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

CAUTION: DO NOT LET ENGINE FUEL OR OIL FALL ON THE ENGINE. UNWANTED FUEL OR OIL MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FUEL OR OIL CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

ZONE: 400

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 29 and 27 lbf.in (0.33 and 0.31 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-002)	cleaning fluid
(Material No.V02-141)	lockwire
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	SIGHT GLASS GASKET	AIPC 79-11-41-80-210

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-13-79-610-010-A	Drain the Engine Oil System
TASK 12-13-79-610-011-A	Check Oil Level and Replenish
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
Oil Tank Sight Glass

3. Job Set-up
Subtask 79-11-41-941-055-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 79-11-41-010-057-A ** ON A/C NOT FOR ALL

B. Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR.

Subtask 79-11-41-680-053-A ** ON A/C NOT FOR ALL

C. Drain the engine oil system (Ref. AMM TASK 12-13-79-610-010).

4. Procedure
Subtask 79-11-41-020-060-A ** ON A/C NOT FOR ALL

A. Removal of the Oil Tank Sight Glass

Oil Tank Sight Glass ** ON A/C NOT FOR ALL

(1) Removal of the Sight Glass.
(a) Remove the lockwire from the sight glass (1).
(b) Remove and discard the eight screws (3) that attach the sight glass (1) to the oil tank assembly.
(c) Remove the sight glass (1).
(d) Remove and discard the sight glass gasket (2).

Subtask 79-11-41-110-053-A ** ON A/C NOT FOR ALL

B. Clean the Sight Glass
(1) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with cleaning fluid (Material No.V01-002) to clean the sight glass.

Subtask 79-11-41-420-061-A ** ON A/C NOT FOR ALL

C. Install the oil tank sight glass

Oil Tank Sight Glass ** ON A/C NOT FOR ALL

(1) Install the sight glass.
(a) Install the new AIPC 79-11-41-80-210 SIGHT GLASS GASKET (2) and the sight glass (1) in position.
(b) Align the screw holes.
(c) Install the eight screws (3) in their seats and make sure that you engage correctly the helicoil.
1 Apply an equal force in a cross sequence from 1 to 8 until they are seated.
(d) TORQUE the screws (3) according to the correct sequence to between 29 and 27 lbf.in (0.33 and 0.31 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(e) Safety the adjacent union adaptor to the sight glass with the lockwire (Material No.V02-141) .

5. Close-up
Subtask 79-11-41-612-053-A ** ON A/C NOT FOR ALL

A. Fill the oil system (Ref. AMM TASK 12-13-79-610-011).

Subtask 79-11-41-410-055-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:39:51 UTC