Installation of the Fuel Filter Element [CFMI]

TASK 73-11-10-400-002-A
Installation of the Fuel Filter Element

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

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 0.62 and 0.50 m.daN (54.87 and 44.25 lbf.in )
No specific	Torque wrench: range to between 0.90 and 0.79 m.daN (79.65 and 69.91 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP1039)	acetone
(Material No.CP1041)	isopropyl alcohol
(Material No.CP2101)	graphite grease
(Material No.CP5070)	vaseline
(Material No.CP5074)	de-aromatized petroleum
(Material No.CP8001)	lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)	lockwire 0.032 in. (0.8 mm) dia

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
80	O'RING	AIPC 73-11-10-01-147
90	O'RING	AIPC 73-11-10-01-148
20	FUEL FILTER ELEMENT	AIPC 73-11-10-01-152
10	O'RING	AIPC 73-11-10-01-153
30	O'RING	AIPC 73-11-10-01-153

E. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-710-006-A	Minimum Idle Check
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
SPM 707012
Fuel Filter Element
Configuration 2, 3 and 4 Attachment Installation

3. Job Set-up
Subtask 73-11-10-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).

Subtask 73-11-10-010-056-A ** ON A/C NOT FOR ALL

B. Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 73-11-10-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Fuel Filter Element
PRE CFM SB 73-0135
(1) Not applicable.
END PRE CFM SB 73-135

Subtask 73-11-10-420-071-A ** ON A/C NOT FOR ALL

B. Installation of the Fuel Filter Element (POST CFM SB 73-0135)

NOTE: This subtask is for engines that have a fuel filter cover attachment with six bolts, six washers, six self-aligning nuts and six self-aligning washers (configuration 2: Main fuel pump repaired by CFM SB 73-0135).

(1) Install the fuel filter element (20) as follows:

Fuel Filter Element ** ON A/C NOT FOR ALL

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

(a) Clean the fuel filter housing and the fuel filter cover (40) with de-aromatized petroleum (Material No.CP5074) or isopropyl alcohol (Material No.CP1041) or acetone (Material No.CP1039) . Make sure that the wave spring and retaining ring are correctly installed on the inner boss of the fuel filter cover (40).

PRE CFM SB 73-0177

(b) Install the new 73111001-153O'RING10 and 73111001-153O'RING30 in the related groove of the new AIPC 73-11-10-01-152 FUEL FILTER ELEMENT (20) located at both ends. Soak the new O'rings (10) and (30) with engine fuel and slightly lubricate the new O'rings with vaseline (Material No.CP5070) .

END PRE CFM SB 73-0177

CFM SB 73-0177

(c) Soak the new O'ring located at both ends of AIPC 73-11-10-01-152 FUEL FILTER ELEMENT (20) with engine fuel and slightly lubricate the new O'rings with vaseline (Material No.CP5070) .

NOTE: The O'rings are already installed, by the manufacturer, in their groove inside the new fuel filter element (20).

END CFM SB 73-0177

(d) Install the new 73111001-148O'RING90, in the related groove of the fuel filter cover (40), soak the new O'ring with engine fuel and lubricate it with vaseline (Material No.CP5070) .
(e) Carefully install the fuel filter element (20) into the fuel filter cover (40).

CAUTION: DO NOT USE BOLTS TO HELP COVER FILTER ENGAGEMENT. DAMAGE ON INSERT WILL OCCUR. A WOOD OR PLASTIC HAMMER MAY HELP TO ENGAGE THE COVER IF NECESSARY.

(f) Visually inspect through the fuel filter element (20) that the O'ring (30) has not released from its groove and check that the fuel filter element does not move.

NOTE: This step is for engines PRE SB 73-0177.

(g) Carefully place the fuel filter cover (40) and the fuel filter element (20) into the filter housing.
(h) Adjust the tabs of the fuel filter element (20) to the ribs of the filter housing.

NOTE: This step is for engines SB 73-0177.

(i) Before bolt installation, make sure that the cover is well seated against the housing flange.
(j) Install the bolt (100) as follows:

Configuration 2, 3 and 4 Attachment Installation ** ON A/C NOT FOR ALL

CAUTION: DO NOT INTERMIX THE DIFFERENT HARDWARE OF INSTALLATION KITS. THERE ARE TWO SUPPLIERS FOR THE HARDWARE ASSEMBLY KITS PH030035-4 OR NAS1727-4D. THE SPHERICAL PROFILE OF NUTS AND WASHERS IS DIFFERENT. THESE TWO DIFFERENT HARDWARE HAVE VISUALLY THE SAME DESIGN BUT THEY HAVE DIFFERENT SPHERICAL PROFILES. INCORRECT BOLT, NUT AND WASHER INSTALLATION CAN CAUSE HARDWARE DAMAGE.

1 Lubricate the 6 head faces of the bolt (100) (in contact with the flat washer (110)), the 6 threads of the bolts (100) and the 6 spherical sides of the self- aligning nuts (120) with graphite grease (Material No.CP2101) .
2 Install the 6 bolts (100), the 6 washers (110), the 6 self-aligning washers (130) and nuts (120) to obey the assembly configuration.
(k) Engage the bolts freely by hand (head bolt held and rotated with fingers , no tool is permitted) and rotate for two complete turns minimun (it should not be possible to fully hand tighten bolts).
(l) TORQUE the bolts (100).

CAUTION: YOU MUST TIGHTEN THE BOLTS WITH APPROPRIATE TOOLS (PRESET TORQUE WRENCH). EXCESSIVE TORQUE MAY LEAD TO DAMAGE THE HARDWARE.

1 TORQUE the bolts to between 0.90 and 0.79 m.daN (79.65 and 69.91 lbf.in )

(m) Unscrew the 6 bolts and torque them again to between 0.90 and 0.79 m.daN (79.65 and 69.91 lbf.in )

(n) Install a new 73111001-147O'RING80, soak the new O'ring with engine fuel and lubricate it with vaseline (Material No.CP5070) , on drain plug (70).
(o) Install drain plug (70) lightly coated with engine fuel. TORQUE drain plug to between 0.62 and 0.50 m.daN (54.87 and 44.25 lbf.in )

. Safety with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia. SPM 707012

END OF POST CFM SB 73-0135

Subtask 73-11-10-420-072-A ** ON A/C NOT FOR ALL

C. Installation of the Fuel Filter Element

POST CFM SB 73-A0143
PRE CFM SB 73-0174

NOTE: This subtask is for engines that have a fuel filter cover attachment with five D-HEAD bolts, retaining rings, washers, nuts (5 locations) and one normal bolt, one washer with fuel pump housing insert (1 location) (configuration 3: Main fuel pump repaired by CFM SB 73-A0143).

(1) Install the fuel filter element (20) as follows:

Fuel Filter Element ** ON A/C NOT FOR ALL

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

NOTE: The O'rings are already installed, by the manufacturer, in their groove inside the new fuel filter element (20).

END CFM SB 73-0177

(d) Install a new 73111001-148O'RING90, in the related groove of the fuel filter cover (40), soak the new O'ring (90) with engine fuel and lubricate it with vaseline (Material No.CP5070) .
(e) Carefully install the fuel filter element (20) into the fuel filter cover (40).
(f) Visually inspect through the fuel filter element (20) that the O'ring (30) has not released from its groove and check that the fuel filter element (20) does not move.

NOTE: This step is for engines PRE CFM SB 73-0177.

(g) Apply the following material.

CAUTION: DO NOT USE BOLTS TO HELP COVER FILTER ENGAGEMENT. DAMAGE ON INSERT WILL OCCUR. A WOOD OR PLASTIC HAMMER MAY HELP TO ENGAGE THE COVER IF NECESSARY.

1 Apply graphite grease (Material No.CP2101) on the 5 D-HEAD bolt (300) threads, flat washers (330), nuts (320) (face in contact with flat washer) and on the bolt (350) thread.
(h) Carefully install the fuel filter cover (40) and the fuel filter element (20) into the filter housing.
(i) Adjust the tab of the AIPC 73-11-10-01-152 FUEL FILTER ELEMENT (20) to the ribs of the filter housing.

NOTE: This step is for engines SB 73-0177.

(j) Before bolt installation, make sure that the cover is well seated against the housing flange.
(k) Install flat washer (330) and nuts (320).
(l) Make sure that the nuts (320) screw freely by hand, as follows:

NOTE: No tool is permitted.

1 Rotate each nut for two complete turns minimum. If the attaching part is in good condition, it should not be possible to fully hand tighten the nut.
(m) Install the flat washer (340) and the bolt (350).

Configuration 2, 3 and 4 Attachment Installation ** ON A/C NOT FOR ALL

NOTE: Only one bolt is used in the hole adjacent to the nameplate.

(n) Make sure that the bolt (350) engages freely by hand, as follows:

NOTE: No tool is permitted.

1 Hold the bolt (350) head between your fingers, and rotate the bolt a minimum of two turns. If the insert is in good condition, it should not be possible to fully hand tighten the bolt (350).
(o) TORQUE the nuts (320) and the bolt (350) to between 0.90 and 0.79 m.daN (79.65 and 69.91 lbf.in )

.
(p) Soak a new 73111001-147O'RING80 with engine fuel, lubricate it with vaseline (Material No.CP5070) and install the O'ring on the drain plug (70).
(q) Lightly lubricate the drain plug thread (70) with engine fuel. Install and TORQUE the drain plug (70) to between 0.62 and 0.50 m.daN (54.87 and 44.25 lbf.in )

. Safety with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia. SPM 707012

END OF POST CFM SB 73-A0143

END OF PRE CFM SB 73-0174

Subtask 73-11-10-420-073-A ** ON A/C NOT FOR ALL

D. Installation of the Fuel Filter Element

POST CFM SB 73-0174

NOTE: This subtask is for engines that have a fuel filter cover attachment with five D-HEAD bolts, retaining rings, washers, nuts (5 locations) (repaired by the application of CFM SB 73-A0143) and one bolt, washer, self-aligning washer and self-aligning nut (1 location) (configuration 4: Main fuel pump repaired by CFM SB 73-A0143 and CFM SB 73-0174).

(1) Install the fuel filter element (20) as follows:

Fuel Filter Element ** ON A/C NOT FOR ALL

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

(a) Clean the fuel filter housing and the fuel filter cover (40) with de-aromatized petroleum (Material No.CP5074) or isopropyl alcohol (Material No.CP1041) or acetone (Material No.CP1039) . Make sure that the spring washer and retaining ring are correctly installed on the inner boss of the fuel filter cover (40).

PRE SB 73-0177

(b) Install the new 73111001-153O'RING10 and 73111001-153O'RING30 in the related groove of the new AIPC 73-11-10-01-152 FUEL FILTER ELEMENT (20) located at both ends. Soak the new O'rings (10) and (30) with engine fuel and slightly lubricate the new O'rings with vaseline (Material No.CP5070) .

END PRE SB 73-0177

SB 73-0177

(c) Soak the new O'ring located at both ends of the AIPC 73-11-10-01-152 FUEL FILTER ELEMENT (20) with engine fuel and slightly lubricate the new O'ring with vaseline (Material No.CP5070) .

NOTE: The O'rings are already installed, by the manufacturer, in their groove inside the new fuel filter element (20).

CAUTION: DO NOT USE BOLTS TO HELP COVER FILTER ENGAGEMENT. DAMAGE ON INSERT WILL OCCUR. A WOOD OR PLASTIC HAMMER MAY HELP TO ENGAGE THE COVER IF NECESSARY.

(f) Visually inspect through the fuel filter element (20) that the O'ring (30) has not released from its groove and check that the fuel filter element (20) does not move.

NOTE: This step is for engines PRE CFM SB 73-0177.

(g) Apply graphite grease (Material No.CP2101) on the 5 D-HEAD bolt (300) threads, flat washers (330), nuts (320) (face in contact with flat washer) and on the bolt (110) or (120) thread.

CAUTION: DO NOT USE BOLTS TO HELP COVER FILTER ENGAGEMENT. DAMAGE ON INSERT WILL OCCUR. A WOOD OR PLASTIC HAMMER MAY HELP TO ENGAGE THE COVER IF NECESSARY.

(h) Carefully install the fuel filter cover (40) and the fuel filter element (20) into the filter housing.
(i) Adjust the tabs of the AIPC 73-11-10-01-152 FUEL FILTER ELEMENT (20) to the ribs of the filter housing.

NOTE: This step is for engines SB 73-0177.

(j) Before bolt installation, make sure that the cover is well seated against the housing flange.

(k) Install the bolt (100) as follows:

Configuration 2, 3 and 4 Attachment Installation ** ON A/C NOT FOR ALL

NOTE: Only one bolt is used in the hole adjacent to the nameplate.

1 Lubricate the head faces of the bolt (100) (in contact with the flat washer (110)), the thread of the bolt and the spherical side of the self-aligning nut (120) with graphite grease (Material No.CP2101) .
2 Install the bolt (100), the washer (110), the self-aligning washer (130) and the self-aligning nut (120) and obey the assembly configuration.

Configuration 2, 3 and 4 Attachment Installation ** ON A/C NOT FOR ALL

(l) Engage the bolt (100) freely by hand, as follows:

NOTE: No tool is permitted.

1 Hold the bolt head between your fingers and rotate the bolt a minimum of two turns. If the attaching part is in good condition, it should not be possible to fully hand tighten the bolt.
(m) Install flat washers (330) and nuts (320).
(n) Make sure that the nuts (320) screw freely by hand, as follows:

NOTE: No tool is permitted.

1 Rotate each nut for two complete turns minimum. If the attaching part is in good condition, it should not be possible to fully hand tighten the nut.
(o) TORQUE the bolt (100) to between 0.90 and 0.79 m.daN (79.65 and 69.91 lbf.in )

.
(p) Unscrew the bolt (100) and TORQUE it again to between 0.90 and 0.79 m.daN (79.65 and 69.91 lbf.in )

.
(q) Soak a new 73111001-147O'RING80 with engine fuel, lubricate it with vaseline (Material No.CP5070) and install the O'ring on the drain plug (70).
(r) Lightly lubricate the drain plug thread (70) with engine fuel. Install and TORQUE the drain plug (70) to between 0.62 and 0.50 m.daN (54.87 and 44.25 lbf.in )

. Safety with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia. SPM 707012

END OF POST CFM SB 73-0174

Subtask 73-11-10-942-050-A ** ON A/C NOT FOR ALL

E. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
(a) Remove the container from under the engine.

Subtask 73-11-10-710-051-A ** ON A/C NOT FOR ALL

F. Do a minimum idle check (Ref. AMM TASK 71-00-00-710-006) and a check for leaks.

5. Close-up
Subtask 73-11-10-410-051-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors: (Ref. AMM TASK 71-13-00-410-040)
(3) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(4) FOR [1000EM2] (ENGINE-2)
447AL 448AR

[Rev.10 from 2021] 2026.04.01 07:30:53 UTC